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4026 lines
125 KiB
4026 lines
125 KiB
/* |
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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/** |
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* @file |
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* multiple format streaming server based on the FFmpeg libraries |
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*/ |
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|
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#include "config.h" |
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#if !HAVE_CLOSESOCKET |
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#define closesocket close |
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#endif |
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include "libavformat/avformat.h" |
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/* FIXME: those are internal headers, ffserver _really_ shouldn't use them */ |
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#include "libavformat/rtpproto.h" |
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#include "libavformat/rtsp.h" |
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#include "libavformat/avio_internal.h" |
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#include "libavformat/internal.h" |
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|
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#include "libavutil/avassert.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/lfg.h" |
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#include "libavutil/dict.h" |
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#include "libavutil/intreadwrite.h" |
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#include "libavutil/mathematics.h" |
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#include "libavutil/random_seed.h" |
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#include "libavutil/rational.h" |
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#include "libavutil/parseutils.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/time.h" |
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|
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#include <stdarg.h> |
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#if HAVE_UNISTD_H |
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#include <unistd.h> |
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#endif |
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#include <fcntl.h> |
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#include <sys/ioctl.h> |
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#if HAVE_POLL_H |
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#include <poll.h> |
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#endif |
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#include <errno.h> |
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#include <time.h> |
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#include <sys/wait.h> |
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#include <signal.h> |
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|
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#include "cmdutils.h" |
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#include "ffserver_config.h" |
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|
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#define PATH_LENGTH 1024 |
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|
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const char program_name[] = "ffserver"; |
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const int program_birth_year = 2000; |
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|
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static const OptionDef options[]; |
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|
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enum HTTPState { |
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HTTPSTATE_WAIT_REQUEST, |
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HTTPSTATE_SEND_HEADER, |
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HTTPSTATE_SEND_DATA_HEADER, |
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HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */ |
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HTTPSTATE_SEND_DATA_TRAILER, |
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HTTPSTATE_RECEIVE_DATA, |
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HTTPSTATE_WAIT_FEED, /* wait for data from the feed */ |
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HTTPSTATE_READY, |
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|
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RTSPSTATE_WAIT_REQUEST, |
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RTSPSTATE_SEND_REPLY, |
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RTSPSTATE_SEND_PACKET, |
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}; |
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|
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static const char * const http_state[] = { |
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"HTTP_WAIT_REQUEST", |
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"HTTP_SEND_HEADER", |
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|
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"SEND_DATA_HEADER", |
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"SEND_DATA", |
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"SEND_DATA_TRAILER", |
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"RECEIVE_DATA", |
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"WAIT_FEED", |
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"READY", |
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|
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"RTSP_WAIT_REQUEST", |
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"RTSP_SEND_REPLY", |
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"RTSP_SEND_PACKET", |
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}; |
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|
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#define IOBUFFER_INIT_SIZE 8192 |
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|
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/* timeouts are in ms */ |
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#define HTTP_REQUEST_TIMEOUT (15 * 1000) |
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#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000) |
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|
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#define SYNC_TIMEOUT (10 * 1000) |
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|
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typedef struct RTSPActionServerSetup { |
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uint32_t ipaddr; |
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char transport_option[512]; |
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} RTSPActionServerSetup; |
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|
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typedef struct { |
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int64_t count1, count2; |
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int64_t time1, time2; |
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} DataRateData; |
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|
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/* context associated with one connection */ |
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typedef struct HTTPContext { |
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enum HTTPState state; |
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int fd; /* socket file descriptor */ |
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struct sockaddr_in from_addr; /* origin */ |
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struct pollfd *poll_entry; /* used when polling */ |
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int64_t timeout; |
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uint8_t *buffer_ptr, *buffer_end; |
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int http_error; |
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int post; |
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int chunked_encoding; |
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int chunk_size; /* 0 if it needs to be read */ |
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struct HTTPContext *next; |
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int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */ |
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int64_t data_count; |
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/* feed input */ |
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int feed_fd; |
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/* input format handling */ |
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AVFormatContext *fmt_in; |
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int64_t start_time; /* In milliseconds - this wraps fairly often */ |
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int64_t first_pts; /* initial pts value */ |
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int64_t cur_pts; /* current pts value from the stream in us */ |
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int64_t cur_frame_duration; /* duration of the current frame in us */ |
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int cur_frame_bytes; /* output frame size, needed to compute |
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the time at which we send each |
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packet */ |
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int pts_stream_index; /* stream we choose as clock reference */ |
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int64_t cur_clock; /* current clock reference value in us */ |
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/* output format handling */ |
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struct FFServerStream *stream; |
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/* -1 is invalid stream */ |
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int feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */ |
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int switch_feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */ |
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int switch_pending; |
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AVFormatContext *pfmt_ctx; /* instance of FFServerStream for one user */ |
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int last_packet_sent; /* true if last data packet was sent */ |
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int suppress_log; |
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DataRateData datarate; |
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int wmp_client_id; |
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char protocol[16]; |
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char method[16]; |
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char url[128]; |
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char clean_url[128*7]; |
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int buffer_size; |
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uint8_t *buffer; |
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int is_packetized; /* if true, the stream is packetized */ |
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int packet_stream_index; /* current stream for output in state machine */ |
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|
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/* RTSP state specific */ |
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uint8_t *pb_buffer; /* XXX: use that in all the code */ |
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AVIOContext *pb; |
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int seq; /* RTSP sequence number */ |
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|
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/* RTP state specific */ |
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enum RTSPLowerTransport rtp_protocol; |
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char session_id[32]; /* session id */ |
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AVFormatContext *rtp_ctx[FFSERVER_MAX_STREAMS]; |
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|
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/* RTP/UDP specific */ |
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URLContext *rtp_handles[FFSERVER_MAX_STREAMS]; |
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|
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/* RTP/TCP specific */ |
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struct HTTPContext *rtsp_c; |
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uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end; |
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} HTTPContext; |
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|
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static HTTPContext *first_http_ctx; |
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|
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static FFServerConfig config = { |
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.nb_max_http_connections = 2000, |
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.nb_max_connections = 5, |
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.max_bandwidth = 1000, |
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.use_defaults = 1, |
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}; |
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|
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static void new_connection(int server_fd, int is_rtsp); |
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static void close_connection(HTTPContext *c); |
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|
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/* HTTP handling */ |
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static int handle_connection(HTTPContext *c); |
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static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream); |
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static void compute_status(HTTPContext *c); |
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static int open_input_stream(HTTPContext *c, const char *info); |
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static int http_parse_request(HTTPContext *c); |
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static int http_send_data(HTTPContext *c); |
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static int http_start_receive_data(HTTPContext *c); |
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static int http_receive_data(HTTPContext *c); |
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|
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/* RTSP handling */ |
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static int rtsp_parse_request(HTTPContext *c); |
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static void rtsp_cmd_describe(HTTPContext *c, const char *url); |
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static void rtsp_cmd_options(HTTPContext *c, const char *url); |
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static void rtsp_cmd_setup(HTTPContext *c, const char *url, |
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RTSPMessageHeader *h); |
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static void rtsp_cmd_play(HTTPContext *c, const char *url, |
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RTSPMessageHeader *h); |
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static void rtsp_cmd_interrupt(HTTPContext *c, const char *url, |
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RTSPMessageHeader *h, int pause_only); |
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|
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/* SDP handling */ |
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static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer, |
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struct in_addr my_ip); |
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|
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/* RTP handling */ |
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static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, |
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FFServerStream *stream, |
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const char *session_id, |
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enum RTSPLowerTransport rtp_protocol); |
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static int rtp_new_av_stream(HTTPContext *c, |
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int stream_index, struct sockaddr_in *dest_addr, |
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HTTPContext *rtsp_c); |
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/* utils */ |
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static size_t htmlencode (const char *src, char **dest); |
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static inline void cp_html_entity (char *buffer, const char *entity); |
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static inline int check_codec_match(LayeredAVStream *ccf, AVStream *ccs, int stream); |
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|
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static const char *my_program_name; |
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|
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static int no_launch; |
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static int need_to_start_children; |
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|
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/* maximum number of simultaneous HTTP connections */ |
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static unsigned int nb_connections; |
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|
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static uint64_t current_bandwidth; |
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|
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/* Making this global saves on passing it around everywhere */ |
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static int64_t cur_time; |
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static AVLFG random_state; |
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|
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static FILE *logfile = NULL; |
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|
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static void unlayer_stream(AVStream *st, LayeredAVStream *lst) |
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{ |
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avcodec_free_context(&st->codec); |
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avcodec_parameters_free(&st->codecpar); |
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#define COPY(a) st->a = lst->a; |
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COPY(index) |
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COPY(id) |
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COPY(codec) |
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COPY(codecpar) |
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COPY(time_base) |
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COPY(pts_wrap_bits) |
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COPY(sample_aspect_ratio) |
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COPY(recommended_encoder_configuration) |
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} |
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|
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static inline void cp_html_entity (char *buffer, const char *entity) { |
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if (!buffer || !entity) |
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return; |
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while (*entity) |
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*buffer++ = *entity++; |
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} |
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|
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/** |
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* Substitutes known conflicting chars on a text string with |
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* their corresponding HTML entities. |
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* |
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* Returns the number of bytes in the 'encoded' representation |
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* not including the terminating NUL. |
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*/ |
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static size_t htmlencode (const char *src, char **dest) { |
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const char *amp = "&"; |
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const char *lt = "<"; |
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const char *gt = ">"; |
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const char *start; |
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char *tmp; |
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size_t final_size = 0; |
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|
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if (!src) |
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return 0; |
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|
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start = src; |
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|
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/* Compute needed dest size */ |
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while (*src != '\0') { |
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switch(*src) { |
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case 38: /* & */ |
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final_size += 5; |
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break; |
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case 60: /* < */ |
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case 62: /* > */ |
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final_size += 4; |
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break; |
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default: |
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final_size++; |
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} |
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src++; |
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} |
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|
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src = start; |
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*dest = av_mallocz(final_size + 1); |
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if (!*dest) |
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return 0; |
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|
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/* Build dest */ |
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tmp = *dest; |
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while (*src != '\0') { |
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switch(*src) { |
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case 38: /* & */ |
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cp_html_entity (tmp, amp); |
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tmp += 5; |
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break; |
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case 60: /* < */ |
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cp_html_entity (tmp, lt); |
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tmp += 4; |
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break; |
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case 62: /* > */ |
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cp_html_entity (tmp, gt); |
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tmp += 4; |
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break; |
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default: |
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*tmp = *src; |
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tmp += 1; |
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} |
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src++; |
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} |
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*tmp = '\0'; |
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|
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return final_size; |
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} |
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|
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static int64_t ffm_read_write_index(int fd) |
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{ |
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uint8_t buf[8]; |
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|
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if (lseek(fd, 8, SEEK_SET) < 0) |
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return AVERROR(EIO); |
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if (read(fd, buf, 8) != 8) |
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return AVERROR(EIO); |
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return AV_RB64(buf); |
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} |
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|
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static int ffm_write_write_index(int fd, int64_t pos) |
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{ |
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uint8_t buf[8]; |
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int i; |
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|
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for(i=0;i<8;i++) |
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buf[i] = (pos >> (56 - i * 8)) & 0xff; |
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if (lseek(fd, 8, SEEK_SET) < 0) |
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goto bail_eio; |
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if (write(fd, buf, 8) != 8) |
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goto bail_eio; |
|
|
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return 8; |
|
|
|
bail_eio: |
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return AVERROR(EIO); |
|
} |
|
|
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static void ffm_set_write_index(AVFormatContext *s, int64_t pos, |
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int64_t file_size) |
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{ |
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av_opt_set_int(s, "server_attached", 1, AV_OPT_SEARCH_CHILDREN); |
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av_opt_set_int(s, "ffm_write_index", pos, AV_OPT_SEARCH_CHILDREN); |
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av_opt_set_int(s, "ffm_file_size", file_size, AV_OPT_SEARCH_CHILDREN); |
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} |
|
|
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static char *ctime1(char *buf2, size_t buf_size) |
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{ |
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time_t ti; |
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char *p; |
|
|
|
ti = time(NULL); |
|
p = ctime(&ti); |
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if (!p || !*p) { |
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*buf2 = '\0'; |
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return buf2; |
|
} |
|
av_strlcpy(buf2, p, buf_size); |
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p = buf2 + strlen(buf2) - 1; |
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if (*p == '\n') |
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*p = '\0'; |
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return buf2; |
|
} |
|
|
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static void http_vlog(const char *fmt, va_list vargs) |
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{ |
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static int print_prefix = 1; |
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char buf[32]; |
|
|
|
if (!logfile) |
|
return; |
|
|
|
if (print_prefix) { |
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ctime1(buf, sizeof(buf)); |
|
fprintf(logfile, "%s ", buf); |
|
} |
|
print_prefix = strstr(fmt, "\n") != NULL; |
|
vfprintf(logfile, fmt, vargs); |
|
fflush(logfile); |
|
} |
|
|
|
#ifdef __GNUC__ |
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__attribute__ ((format (printf, 1, 2))) |
|
#endif |
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static void http_log(const char *fmt, ...) |
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{ |
|
va_list vargs; |
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va_start(vargs, fmt); |
|
http_vlog(fmt, vargs); |
|
va_end(vargs); |
|
} |
|
|
|
static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs) |
|
{ |
|
static int print_prefix = 1; |
|
AVClass *avc = ptr ? *(AVClass**)ptr : NULL; |
|
if (level > av_log_get_level()) |
|
return; |
|
if (print_prefix && avc) |
|
http_log("[%s @ %p]", avc->item_name(ptr), ptr); |
|
print_prefix = strstr(fmt, "\n") != NULL; |
|
http_vlog(fmt, vargs); |
|
} |
|
|
|
static void log_connection(HTTPContext *c) |
|
{ |
|
if (c->suppress_log) |
|
return; |
|
|
|
http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n", |
|
inet_ntoa(c->from_addr.sin_addr), c->method, c->url, |
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c->protocol, (c->http_error ? c->http_error : 200), c->data_count); |
|
} |
|
|
|
static void update_datarate(DataRateData *drd, int64_t count) |
|
{ |
|
if (!drd->time1 && !drd->count1) { |
|
drd->time1 = drd->time2 = cur_time; |
|
drd->count1 = drd->count2 = count; |
|
} else if (cur_time - drd->time2 > 5000) { |
|
drd->time1 = drd->time2; |
|
drd->count1 = drd->count2; |
|
drd->time2 = cur_time; |
|
drd->count2 = count; |
|
} |
|
} |
|
|
|
/* In bytes per second */ |
|
static int compute_datarate(DataRateData *drd, int64_t count) |
|
{ |
|
if (cur_time == drd->time1) |
|
return 0; |
|
|
|
return ((count - drd->count1) * 1000) / (cur_time - drd->time1); |
|
} |
|
|
|
|
|
static void start_children(FFServerStream *feed) |
|
{ |
|
char *pathname; |
|
char *slash; |
|
int i; |
|
size_t cmd_length; |
|
|
|
if (no_launch) |
|
return; |
|
|
|
cmd_length = strlen(my_program_name); |
|
|
|
/** |
|
* FIXME: WIP Safeguard. Remove after clearing all harcoded |
|
* '1024' path lengths |
|
*/ |
|
if (cmd_length > PATH_LENGTH - 1) { |
|
http_log("Could not start children. Command line: '%s' exceeds " |
|
"path length limit (%d)\n", my_program_name, PATH_LENGTH); |
|
return; |
|
} |
|
|
|
slash = strrchr(my_program_name, '/'); |
|
if (!slash) { |
|
pathname = av_mallocz(sizeof("ffmpeg")); |
|
} else { |
|
pathname = av_mallocz(slash - my_program_name + sizeof("ffmpeg")); |
|
if (pathname != NULL) { |
|
memcpy(pathname, my_program_name, slash - my_program_name); |
|
} |
|
} |
|
if (!pathname) { |
|
http_log("Could not allocate memory for children cmd line\n"); |
|
return; |
|
} |
|
/* use "ffmpeg" in the path of current program. Ignore user provided path */ |
|
|
|
strcat(pathname, "ffmpeg"); |
|
|
|
for (; feed; feed = feed->next) { |
|
|
|
if (!feed->child_argv || feed->pid) |
|
continue; |
|
|
|
feed->pid_start = time(0); |
|
|
|
feed->pid = fork(); |
|
if (feed->pid < 0) { |
|
http_log("Unable to create children: %s\n", strerror(errno)); |
|
av_free (pathname); |
|
exit(EXIT_FAILURE); |
|
} |
|
|
|
if (feed->pid) |
|
continue; |
|
|
|
/* In child */ |
|
|
|
http_log("Launch command line: "); |
|
http_log("%s ", pathname); |
|
|
|
for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++) |
|
http_log("%s ", feed->child_argv[i]); |
|
http_log("\n"); |
|
|
|
for (i = 3; i < 256; i++) |
|
close(i); |
|
|
|
if (!config.debug) { |
|
if (!freopen("/dev/null", "r", stdin)) |
|
http_log("failed to redirect STDIN to /dev/null\n;"); |
|
if (!freopen("/dev/null", "w", stdout)) |
|
http_log("failed to redirect STDOUT to /dev/null\n;"); |
|
if (!freopen("/dev/null", "w", stderr)) |
|
http_log("failed to redirect STDERR to /dev/null\n;"); |
|
} |
|
|
|
signal(SIGPIPE, SIG_DFL); |
|
execvp(pathname, feed->child_argv); |
|
av_free (pathname); |
|
_exit(1); |
|
} |
|
av_free (pathname); |
|
} |
|
|
|
/* open a listening socket */ |
|
static int socket_open_listen(struct sockaddr_in *my_addr) |
|
{ |
|
int server_fd, tmp; |
|
|
|
server_fd = socket(AF_INET,SOCK_STREAM,0); |
|
if (server_fd < 0) { |
|
perror ("socket"); |
|
return -1; |
|
} |
|
|
|
tmp = 1; |
|
if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp))) |
|
av_log(NULL, AV_LOG_WARNING, "setsockopt SO_REUSEADDR failed\n"); |
|
|
|
my_addr->sin_family = AF_INET; |
|
if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) { |
|
char bindmsg[32]; |
|
snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", |
|
ntohs(my_addr->sin_port)); |
|
perror (bindmsg); |
|
goto fail; |
|
} |
|
|
|
if (listen (server_fd, 5) < 0) { |
|
perror ("listen"); |
|
goto fail; |
|
} |
|
|
|
if (ff_socket_nonblock(server_fd, 1) < 0) |
|
av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n"); |
|
|
|
return server_fd; |
|
|
|
fail: |
|
closesocket(server_fd); |
|
return -1; |
|
} |
|
|
|
/* start all multicast streams */ |
|
static void start_multicast(void) |
|
{ |
|
FFServerStream *stream; |
|
char session_id[32]; |
|
HTTPContext *rtp_c; |
|
struct sockaddr_in dest_addr = {0}; |
|
int default_port, stream_index; |
|
unsigned int random0, random1; |
|
|
|
default_port = 6000; |
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
|
|
if (!stream->is_multicast) |
|
continue; |
|
|
|
random0 = av_lfg_get(&random_state); |
|
random1 = av_lfg_get(&random_state); |
|
|
|
/* open the RTP connection */ |
|
snprintf(session_id, sizeof(session_id), "%08x%08x", random0, random1); |
|
|
|
/* choose a port if none given */ |
|
if (stream->multicast_port == 0) { |
|
stream->multicast_port = default_port; |
|
default_port += 100; |
|
} |
|
|
|
dest_addr.sin_family = AF_INET; |
|
dest_addr.sin_addr = stream->multicast_ip; |
|
dest_addr.sin_port = htons(stream->multicast_port); |
|
|
|
rtp_c = rtp_new_connection(&dest_addr, stream, session_id, |
|
RTSP_LOWER_TRANSPORT_UDP_MULTICAST); |
|
if (!rtp_c) |
|
continue; |
|
|
|
if (open_input_stream(rtp_c, "") < 0) { |
|
http_log("Could not open input stream for stream '%s'\n", |
|
stream->filename); |
|
continue; |
|
} |
|
|
|
/* open each RTP stream */ |
|
for(stream_index = 0; stream_index < stream->nb_streams; |
|
stream_index++) { |
|
dest_addr.sin_port = htons(stream->multicast_port + |
|
2 * stream_index); |
|
if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) >= 0) |
|
continue; |
|
|
|
http_log("Could not open output stream '%s/streamid=%d'\n", |
|
stream->filename, stream_index); |
|
exit(1); |
|
} |
|
|
|
rtp_c->state = HTTPSTATE_SEND_DATA; |
|
} |
|
} |
|
|
|
/* main loop of the HTTP server */ |
|
static int http_server(void) |
|
{ |
|
int server_fd = 0, rtsp_server_fd = 0; |
|
int ret, delay; |
|
struct pollfd *poll_table, *poll_entry; |
|
HTTPContext *c, *c_next; |
|
|
|
poll_table = av_mallocz_array(config.nb_max_http_connections + 2, |
|
sizeof(*poll_table)); |
|
if(!poll_table) { |
|
http_log("Impossible to allocate a poll table handling %d " |
|
"connections.\n", config.nb_max_http_connections); |
|
return -1; |
|
} |
|
|
|
if (config.http_addr.sin_port) { |
|
server_fd = socket_open_listen(&config.http_addr); |
|
if (server_fd < 0) |
|
goto quit; |
|
} |
|
|
|
if (config.rtsp_addr.sin_port) { |
|
rtsp_server_fd = socket_open_listen(&config.rtsp_addr); |
|
if (rtsp_server_fd < 0) { |
|
closesocket(server_fd); |
|
goto quit; |
|
} |
|
} |
|
|
|
if (!rtsp_server_fd && !server_fd) { |
|
http_log("HTTP and RTSP disabled.\n"); |
|
goto quit; |
|
} |
|
|
|
http_log("FFserver started.\n"); |
|
|
|
start_children(config.first_feed); |
|
|
|
start_multicast(); |
|
|
|
for(;;) { |
|
poll_entry = poll_table; |
|
if (server_fd) { |
|
poll_entry->fd = server_fd; |
|
poll_entry->events = POLLIN; |
|
poll_entry++; |
|
} |
|
if (rtsp_server_fd) { |
|
poll_entry->fd = rtsp_server_fd; |
|
poll_entry->events = POLLIN; |
|
poll_entry++; |
|
} |
|
|
|
/* wait for events on each HTTP handle */ |
|
c = first_http_ctx; |
|
delay = 1000; |
|
while (c) { |
|
int fd; |
|
fd = c->fd; |
|
switch(c->state) { |
|
case HTTPSTATE_SEND_HEADER: |
|
case RTSPSTATE_SEND_REPLY: |
|
case RTSPSTATE_SEND_PACKET: |
|
c->poll_entry = poll_entry; |
|
poll_entry->fd = fd; |
|
poll_entry->events = POLLOUT; |
|
poll_entry++; |
|
break; |
|
case HTTPSTATE_SEND_DATA_HEADER: |
|
case HTTPSTATE_SEND_DATA: |
|
case HTTPSTATE_SEND_DATA_TRAILER: |
|
if (!c->is_packetized) { |
|
/* for TCP, we output as much as we can |
|
* (may need to put a limit) */ |
|
c->poll_entry = poll_entry; |
|
poll_entry->fd = fd; |
|
poll_entry->events = POLLOUT; |
|
poll_entry++; |
|
} else { |
|
/* when ffserver is doing the timing, we work by |
|
* looking at which packet needs to be sent every |
|
* 10 ms (one tick wait XXX: 10 ms assumed) */ |
|
if (delay > 10) |
|
delay = 10; |
|
} |
|
break; |
|
case HTTPSTATE_WAIT_REQUEST: |
|
case HTTPSTATE_RECEIVE_DATA: |
|
case HTTPSTATE_WAIT_FEED: |
|
case RTSPSTATE_WAIT_REQUEST: |
|
/* need to catch errors */ |
|
c->poll_entry = poll_entry; |
|
poll_entry->fd = fd; |
|
poll_entry->events = POLLIN;/* Maybe this will work */ |
|
poll_entry++; |
|
break; |
|
default: |
|
c->poll_entry = NULL; |
|
break; |
|
} |
|
c = c->next; |
|
} |
|
|
|
/* wait for an event on one connection. We poll at least every |
|
* second to handle timeouts */ |
|
do { |
|
ret = poll(poll_table, poll_entry - poll_table, delay); |
|
if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) { |
|
goto quit; |
|
} |
|
} while (ret < 0); |
|
|
|
cur_time = av_gettime() / 1000; |
|
|
|
if (need_to_start_children) { |
|
need_to_start_children = 0; |
|
start_children(config.first_feed); |
|
} |
|
|
|
/* now handle the events */ |
|
for(c = first_http_ctx; c; c = c_next) { |
|
c_next = c->next; |
|
if (handle_connection(c) < 0) { |
|
log_connection(c); |
|
/* close and free the connection */ |
|
close_connection(c); |
|
} |
|
} |
|
|
|
poll_entry = poll_table; |
|
if (server_fd) { |
|
/* new HTTP connection request ? */ |
|
if (poll_entry->revents & POLLIN) |
|
new_connection(server_fd, 0); |
|
poll_entry++; |
|
} |
|
if (rtsp_server_fd) { |
|
/* new RTSP connection request ? */ |
|
if (poll_entry->revents & POLLIN) |
|
new_connection(rtsp_server_fd, 1); |
|
} |
|
} |
|
|
|
quit: |
|
av_free(poll_table); |
|
return -1; |
|
} |
|
|
|
/* start waiting for a new HTTP/RTSP request */ |
|
static void start_wait_request(HTTPContext *c, int is_rtsp) |
|
{ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */ |
|
|
|
c->state = is_rtsp ? RTSPSTATE_WAIT_REQUEST : HTTPSTATE_WAIT_REQUEST; |
|
c->timeout = cur_time + |
|
(is_rtsp ? RTSP_REQUEST_TIMEOUT : HTTP_REQUEST_TIMEOUT); |
|
} |
|
|
|
static void http_send_too_busy_reply(int fd) |
|
{ |
|
char buffer[400]; |
|
int len = snprintf(buffer, sizeof(buffer), |
|
"HTTP/1.0 503 Server too busy\r\n" |
|
"Content-type: text/html\r\n" |
|
"\r\n" |
|
"<!DOCTYPE html>\n" |
|
"<html><head><title>Too busy</title></head><body>\r\n" |
|
"<p>The server is too busy to serve your request at " |
|
"this time.</p>\r\n" |
|
"<p>The number of current connections is %u, and this " |
|
"exceeds the limit of %u.</p>\r\n" |
|
"</body></html>\r\n", |
|
nb_connections, config.nb_max_connections); |
|
av_assert0(len < sizeof(buffer)); |
|
if (send(fd, buffer, len, 0) < len) |
|
av_log(NULL, AV_LOG_WARNING, |
|
"Could not send too-busy reply, send() failed\n"); |
|
} |
|
|
|
|
|
static void new_connection(int server_fd, int is_rtsp) |
|
{ |
|
struct sockaddr_in from_addr; |
|
socklen_t len; |
|
int fd; |
|
HTTPContext *c = NULL; |
|
|
|
len = sizeof(from_addr); |
|
fd = accept(server_fd, (struct sockaddr *)&from_addr, |
|
&len); |
|
if (fd < 0) { |
|
http_log("error during accept %s\n", strerror(errno)); |
|
return; |
|
} |
|
if (ff_socket_nonblock(fd, 1) < 0) |
|
av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n"); |
|
|
|
if (nb_connections >= config.nb_max_connections) { |
|
http_send_too_busy_reply(fd); |
|
goto fail; |
|
} |
|
|
|
/* add a new connection */ |
|
c = av_mallocz(sizeof(HTTPContext)); |
|
if (!c) |
|
goto fail; |
|
|
|
c->fd = fd; |
|
c->poll_entry = NULL; |
|
c->from_addr = from_addr; |
|
c->buffer_size = IOBUFFER_INIT_SIZE; |
|
c->buffer = av_malloc(c->buffer_size); |
|
if (!c->buffer) |
|
goto fail; |
|
|
|
c->next = first_http_ctx; |
|
first_http_ctx = c; |
|
nb_connections++; |
|
|
|
start_wait_request(c, is_rtsp); |
|
|
|
return; |
|
|
|
fail: |
|
if (c) { |
|
av_freep(&c->buffer); |
|
av_free(c); |
|
} |
|
closesocket(fd); |
|
} |
|
|
|
static void close_connection(HTTPContext *c) |
|
{ |
|
HTTPContext **cp, *c1; |
|
int i, nb_streams; |
|
AVFormatContext *ctx; |
|
AVStream *st; |
|
|
|
/* remove connection from list */ |
|
cp = &first_http_ctx; |
|
while (*cp) { |
|
c1 = *cp; |
|
if (c1 == c) |
|
*cp = c->next; |
|
else |
|
cp = &c1->next; |
|
} |
|
|
|
/* remove references, if any (XXX: do it faster) */ |
|
for(c1 = first_http_ctx; c1; c1 = c1->next) { |
|
if (c1->rtsp_c == c) |
|
c1->rtsp_c = NULL; |
|
} |
|
|
|
/* remove connection associated resources */ |
|
if (c->fd >= 0) |
|
closesocket(c->fd); |
|
if (c->fmt_in) { |
|
/* close each frame parser */ |
|
for(i=0;i<c->fmt_in->nb_streams;i++) { |
|
st = c->fmt_in->streams[i]; |
|
if (st->codec->codec) |
|
avcodec_close(st->codec); |
|
} |
|
avformat_close_input(&c->fmt_in); |
|
} |
|
|
|
/* free RTP output streams if any */ |
|
nb_streams = 0; |
|
if (c->stream) |
|
nb_streams = c->stream->nb_streams; |
|
|
|
for(i=0;i<nb_streams;i++) { |
|
ctx = c->rtp_ctx[i]; |
|
if (ctx) { |
|
av_write_trailer(ctx); |
|
av_dict_free(&ctx->metadata); |
|
av_freep(&ctx->streams[0]); |
|
av_freep(&ctx); |
|
} |
|
ffurl_close(c->rtp_handles[i]); |
|
} |
|
|
|
ctx = c->pfmt_ctx; |
|
|
|
if (ctx) { |
|
if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) { |
|
/* prepare header */ |
|
if (ctx->oformat && avio_open_dyn_buf(&ctx->pb) >= 0) { |
|
av_write_trailer(ctx); |
|
av_freep(&c->pb_buffer); |
|
avio_close_dyn_buf(ctx->pb, &c->pb_buffer); |
|
} |
|
} |
|
for(i=0; i<ctx->nb_streams; i++) |
|
av_freep(&ctx->streams[i]); |
|
av_freep(&ctx->streams); |
|
av_freep(&ctx->priv_data); |
|
} |
|
|
|
if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE) |
|
current_bandwidth -= c->stream->bandwidth; |
|
|
|
/* signal that there is no feed if we are the feeder socket */ |
|
if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) { |
|
c->stream->feed_opened = 0; |
|
close(c->feed_fd); |
|
} |
|
|
|
av_freep(&c->pb_buffer); |
|
av_freep(&c->packet_buffer); |
|
av_freep(&c->buffer); |
|
av_free(c); |
|
nb_connections--; |
|
} |
|
|
|
static int handle_connection(HTTPContext *c) |
|
{ |
|
int len, ret; |
|
uint8_t *ptr; |
|
|
|
switch(c->state) { |
|
case HTTPSTATE_WAIT_REQUEST: |
|
case RTSPSTATE_WAIT_REQUEST: |
|
/* timeout ? */ |
|
if ((c->timeout - cur_time) < 0) |
|
return -1; |
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
|
return -1; |
|
|
|
/* no need to read if no events */ |
|
if (!(c->poll_entry->revents & POLLIN)) |
|
return 0; |
|
/* read the data */ |
|
read_loop: |
|
if (!(len = recv(c->fd, c->buffer_ptr, 1, 0))) |
|
return -1; |
|
|
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) |
|
return -1; |
|
break; |
|
} |
|
/* search for end of request. */ |
|
c->buffer_ptr += len; |
|
ptr = c->buffer_ptr; |
|
if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) || |
|
(ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) { |
|
/* request found : parse it and reply */ |
|
if (c->state == HTTPSTATE_WAIT_REQUEST) |
|
ret = http_parse_request(c); |
|
else |
|
ret = rtsp_parse_request(c); |
|
|
|
if (ret < 0) |
|
return -1; |
|
} else if (ptr >= c->buffer_end) { |
|
/* request too long: cannot do anything */ |
|
return -1; |
|
} else goto read_loop; |
|
|
|
break; |
|
|
|
case HTTPSTATE_SEND_HEADER: |
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
|
return -1; |
|
|
|
/* no need to write if no events */ |
|
if (!(c->poll_entry->revents & POLLOUT)) |
|
return 0; |
|
len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); |
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) { |
|
goto close_connection; |
|
} |
|
break; |
|
} |
|
c->buffer_ptr += len; |
|
if (c->stream) |
|
c->stream->bytes_served += len; |
|
c->data_count += len; |
|
if (c->buffer_ptr >= c->buffer_end) { |
|
av_freep(&c->pb_buffer); |
|
/* if error, exit */ |
|
if (c->http_error) |
|
return -1; |
|
/* all the buffer was sent : synchronize to the incoming |
|
* stream */ |
|
c->state = HTTPSTATE_SEND_DATA_HEADER; |
|
c->buffer_ptr = c->buffer_end = c->buffer; |
|
} |
|
break; |
|
|
|
case HTTPSTATE_SEND_DATA: |
|
case HTTPSTATE_SEND_DATA_HEADER: |
|
case HTTPSTATE_SEND_DATA_TRAILER: |
|
/* for packetized output, we consider we can always write (the |
|
* input streams set the speed). It may be better to verify |
|
* that we do not rely too much on the kernel queues */ |
|
if (!c->is_packetized) { |
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
|
return -1; |
|
|
|
/* no need to read if no events */ |
|
if (!(c->poll_entry->revents & POLLOUT)) |
|
return 0; |
|
} |
|
if (http_send_data(c) < 0) |
|
return -1; |
|
/* close connection if trailer sent */ |
|
if (c->state == HTTPSTATE_SEND_DATA_TRAILER) |
|
return -1; |
|
/* Check if it is a single jpeg frame 123 */ |
|
if (c->stream->single_frame && c->data_count > c->cur_frame_bytes && c->cur_frame_bytes > 0) { |
|
close_connection(c); |
|
} |
|
break; |
|
case HTTPSTATE_RECEIVE_DATA: |
|
/* no need to read if no events */ |
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
|
return -1; |
|
if (!(c->poll_entry->revents & POLLIN)) |
|
return 0; |
|
if (http_receive_data(c) < 0) |
|
return -1; |
|
break; |
|
case HTTPSTATE_WAIT_FEED: |
|
/* no need to read if no events */ |
|
if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP)) |
|
return -1; |
|
|
|
/* nothing to do, we'll be waken up by incoming feed packets */ |
|
break; |
|
|
|
case RTSPSTATE_SEND_REPLY: |
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
|
goto close_connection; |
|
/* no need to write if no events */ |
|
if (!(c->poll_entry->revents & POLLOUT)) |
|
return 0; |
|
len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); |
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) { |
|
goto close_connection; |
|
} |
|
break; |
|
} |
|
c->buffer_ptr += len; |
|
c->data_count += len; |
|
if (c->buffer_ptr >= c->buffer_end) { |
|
/* all the buffer was sent : wait for a new request */ |
|
av_freep(&c->pb_buffer); |
|
start_wait_request(c, 1); |
|
} |
|
break; |
|
case RTSPSTATE_SEND_PACKET: |
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) { |
|
av_freep(&c->packet_buffer); |
|
return -1; |
|
} |
|
/* no need to write if no events */ |
|
if (!(c->poll_entry->revents & POLLOUT)) |
|
return 0; |
|
len = send(c->fd, c->packet_buffer_ptr, |
|
c->packet_buffer_end - c->packet_buffer_ptr, 0); |
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) { |
|
/* error : close connection */ |
|
av_freep(&c->packet_buffer); |
|
return -1; |
|
} |
|
break; |
|
} |
|
c->packet_buffer_ptr += len; |
|
if (c->packet_buffer_ptr >= c->packet_buffer_end) { |
|
/* all the buffer was sent : wait for a new request */ |
|
av_freep(&c->packet_buffer); |
|
c->state = RTSPSTATE_WAIT_REQUEST; |
|
} |
|
break; |
|
case HTTPSTATE_READY: |
|
/* nothing to do */ |
|
break; |
|
default: |
|
return -1; |
|
} |
|
return 0; |
|
|
|
close_connection: |
|
av_freep(&c->pb_buffer); |
|
return -1; |
|
} |
|
|
|
static int extract_rates(char *rates, int ratelen, const char *request) |
|
{ |
|
const char *p; |
|
|
|
for (p = request; *p && *p != '\r' && *p != '\n'; ) { |
|
if (av_strncasecmp(p, "Pragma:", 7) == 0) { |
|
const char *q = p + 7; |
|
|
|
while (*q && *q != '\n' && av_isspace(*q)) |
|
q++; |
|
|
|
if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) { |
|
int stream_no; |
|
int rate_no; |
|
|
|
q += 20; |
|
|
|
memset(rates, 0xff, ratelen); |
|
|
|
while (1) { |
|
while (*q && *q != '\n' && *q != ':') |
|
q++; |
|
|
|
if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2) |
|
break; |
|
|
|
stream_no--; |
|
if (stream_no < ratelen && stream_no >= 0) |
|
rates[stream_no] = rate_no; |
|
|
|
while (*q && *q != '\n' && !av_isspace(*q)) |
|
q++; |
|
} |
|
|
|
return 1; |
|
} |
|
} |
|
p = strchr(p, '\n'); |
|
if (!p) |
|
break; |
|
|
|
p++; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int find_stream_in_feed(FFServerStream *feed, AVCodecParameters *codec, |
|
int bit_rate) |
|
{ |
|
int i; |
|
int best_bitrate = 100000000; |
|
int best = -1; |
|
|
|
for (i = 0; i < feed->nb_streams; i++) { |
|
AVCodecParameters *feed_codec = feed->streams[i]->codecpar; |
|
|
|
if (feed_codec->codec_id != codec->codec_id || |
|
feed_codec->sample_rate != codec->sample_rate || |
|
feed_codec->width != codec->width || |
|
feed_codec->height != codec->height) |
|
continue; |
|
|
|
/* Potential stream */ |
|
|
|
/* We want the fastest stream less than bit_rate, or the slowest |
|
* faster than bit_rate |
|
*/ |
|
|
|
if (feed_codec->bit_rate <= bit_rate) { |
|
if (best_bitrate > bit_rate || |
|
feed_codec->bit_rate > best_bitrate) { |
|
best_bitrate = feed_codec->bit_rate; |
|
best = i; |
|
} |
|
continue; |
|
} |
|
if (feed_codec->bit_rate < best_bitrate) { |
|
best_bitrate = feed_codec->bit_rate; |
|
best = i; |
|
} |
|
} |
|
return best; |
|
} |
|
|
|
static int modify_current_stream(HTTPContext *c, char *rates) |
|
{ |
|
int i; |
|
FFServerStream *req = c->stream; |
|
int action_required = 0; |
|
|
|
/* Not much we can do for a feed */ |
|
if (!req->feed) |
|
return 0; |
|
|
|
for (i = 0; i < req->nb_streams; i++) { |
|
AVCodecParameters *codec = req->streams[i]->codecpar; |
|
|
|
switch(rates[i]) { |
|
case 0: |
|
c->switch_feed_streams[i] = req->feed_streams[i]; |
|
break; |
|
case 1: |
|
c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2); |
|
break; |
|
case 2: |
|
/* Wants off or slow */ |
|
c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4); |
|
#ifdef WANTS_OFF |
|
/* This doesn't work well when it turns off the only stream! */ |
|
c->switch_feed_streams[i] = -2; |
|
c->feed_streams[i] = -2; |
|
#endif |
|
break; |
|
} |
|
|
|
if (c->switch_feed_streams[i] >= 0 && |
|
c->switch_feed_streams[i] != c->feed_streams[i]) { |
|
action_required = 1; |
|
} |
|
} |
|
|
|
return action_required; |
|
} |
|
|
|
static void get_word(char *buf, int buf_size, const char **pp) |
|
{ |
|
const char *p; |
|
char *q; |
|
|
|
#define SPACE_CHARS " \t\r\n" |
|
|
|
p = *pp; |
|
p += strspn(p, SPACE_CHARS); |
|
q = buf; |
|
while (!av_isspace(*p) && *p != '\0') { |
|
if ((q - buf) < buf_size - 1) |
|
*q++ = *p; |
|
p++; |
|
} |
|
if (buf_size > 0) |
|
*q = '\0'; |
|
*pp = p; |
|
} |
|
|
|
static FFServerIPAddressACL* parse_dynamic_acl(FFServerStream *stream, |
|
HTTPContext *c) |
|
{ |
|
FILE* f; |
|
char line[1024]; |
|
char cmd[1024]; |
|
FFServerIPAddressACL *acl = NULL; |
|
int line_num = 0; |
|
const char *p; |
|
|
|
f = fopen(stream->dynamic_acl, "r"); |
|
if (!f) { |
|
perror(stream->dynamic_acl); |
|
return NULL; |
|
} |
|
|
|
acl = av_mallocz(sizeof(FFServerIPAddressACL)); |
|
if (!acl) { |
|
fclose(f); |
|
return NULL; |
|
} |
|
|
|
/* Build ACL */ |
|
while (fgets(line, sizeof(line), f)) { |
|
line_num++; |
|
p = line; |
|
while (av_isspace(*p)) |
|
p++; |
|
if (*p == '\0' || *p == '#') |
|
continue; |
|
ffserver_get_arg(cmd, sizeof(cmd), &p); |
|
|
|
if (!av_strcasecmp(cmd, "ACL")) |
|
ffserver_parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, |
|
line_num); |
|
} |
|
fclose(f); |
|
return acl; |
|
} |
|
|
|
|
|
static void free_acl_list(FFServerIPAddressACL *in_acl) |
|
{ |
|
FFServerIPAddressACL *pacl, *pacl2; |
|
|
|
pacl = in_acl; |
|
while(pacl) { |
|
pacl2 = pacl; |
|
pacl = pacl->next; |
|
av_freep(pacl2); |
|
} |
|
} |
|
|
|
static int validate_acl_list(FFServerIPAddressACL *in_acl, HTTPContext *c) |
|
{ |
|
enum FFServerIPAddressAction last_action = IP_DENY; |
|
FFServerIPAddressACL *acl; |
|
struct in_addr *src = &c->from_addr.sin_addr; |
|
unsigned long src_addr = src->s_addr; |
|
|
|
for (acl = in_acl; acl; acl = acl->next) { |
|
if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr) |
|
return (acl->action == IP_ALLOW) ? 1 : 0; |
|
last_action = acl->action; |
|
} |
|
|
|
/* Nothing matched, so return not the last action */ |
|
return (last_action == IP_DENY) ? 1 : 0; |
|
} |
|
|
|
static int validate_acl(FFServerStream *stream, HTTPContext *c) |
|
{ |
|
int ret = 0; |
|
FFServerIPAddressACL *acl; |
|
|
|
/* if stream->acl is null validate_acl_list will return 1 */ |
|
ret = validate_acl_list(stream->acl, c); |
|
|
|
if (stream->dynamic_acl[0]) { |
|
acl = parse_dynamic_acl(stream, c); |
|
ret = validate_acl_list(acl, c); |
|
free_acl_list(acl); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
/** |
|
* compute the real filename of a file by matching it without its |
|
* extensions to all the stream's filenames |
|
*/ |
|
static void compute_real_filename(char *filename, int max_size) |
|
{ |
|
char file1[1024]; |
|
char file2[1024]; |
|
char *p; |
|
FFServerStream *stream; |
|
|
|
av_strlcpy(file1, filename, sizeof(file1)); |
|
p = strrchr(file1, '.'); |
|
if (p) |
|
*p = '\0'; |
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
av_strlcpy(file2, stream->filename, sizeof(file2)); |
|
p = strrchr(file2, '.'); |
|
if (p) |
|
*p = '\0'; |
|
if (!strcmp(file1, file2)) { |
|
av_strlcpy(filename, stream->filename, max_size); |
|
break; |
|
} |
|
} |
|
} |
|
|
|
enum RedirType { |
|
REDIR_NONE, |
|
REDIR_ASX, |
|
REDIR_RAM, |
|
REDIR_ASF, |
|
REDIR_RTSP, |
|
REDIR_SDP, |
|
}; |
|
|
|
/* parse HTTP request and prepare header */ |
|
static int http_parse_request(HTTPContext *c) |
|
{ |
|
const char *p; |
|
char *p1; |
|
enum RedirType redir_type; |
|
char cmd[32]; |
|
char info[1024], filename[1024]; |
|
char url[1024], *q; |
|
char protocol[32]; |
|
char msg[1024]; |
|
char *encoded_msg = NULL; |
|
const char *mime_type; |
|
FFServerStream *stream; |
|
int i; |
|
char ratebuf[32]; |
|
const char *useragent = 0; |
|
|
|
p = c->buffer; |
|
get_word(cmd, sizeof(cmd), &p); |
|
av_strlcpy(c->method, cmd, sizeof(c->method)); |
|
|
|
if (!strcmp(cmd, "GET")) |
|
c->post = 0; |
|
else if (!strcmp(cmd, "POST")) |
|
c->post = 1; |
|
else |
|
return -1; |
|
|
|
get_word(url, sizeof(url), &p); |
|
av_strlcpy(c->url, url, sizeof(c->url)); |
|
|
|
get_word(protocol, sizeof(protocol), (const char **)&p); |
|
if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1")) |
|
return -1; |
|
|
|
av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); |
|
|
|
if (config.debug) |
|
http_log("%s - - New connection: %s %s\n", |
|
inet_ntoa(c->from_addr.sin_addr), cmd, url); |
|
|
|
/* find the filename and the optional info string in the request */ |
|
p1 = strchr(url, '?'); |
|
if (p1) { |
|
av_strlcpy(info, p1, sizeof(info)); |
|
*p1 = '\0'; |
|
} else |
|
info[0] = '\0'; |
|
|
|
av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1); |
|
|
|
for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { |
|
if (av_strncasecmp(p, "User-Agent:", 11) == 0) { |
|
useragent = p + 11; |
|
if (*useragent && *useragent != '\n' && av_isspace(*useragent)) |
|
useragent++; |
|
break; |
|
} |
|
p = strchr(p, '\n'); |
|
if (!p) |
|
break; |
|
|
|
p++; |
|
} |
|
|
|
redir_type = REDIR_NONE; |
|
if (av_match_ext(filename, "asx")) { |
|
redir_type = REDIR_ASX; |
|
filename[strlen(filename)-1] = 'f'; |
|
} else if (av_match_ext(filename, "asf") && |
|
(!useragent || av_strncasecmp(useragent, "NSPlayer", 8))) { |
|
/* if this isn't WMP or lookalike, return the redirector file */ |
|
redir_type = REDIR_ASF; |
|
} else if (av_match_ext(filename, "rpm,ram")) { |
|
redir_type = REDIR_RAM; |
|
strcpy(filename + strlen(filename)-2, "m"); |
|
} else if (av_match_ext(filename, "rtsp")) { |
|
redir_type = REDIR_RTSP; |
|
compute_real_filename(filename, sizeof(filename) - 1); |
|
} else if (av_match_ext(filename, "sdp")) { |
|
redir_type = REDIR_SDP; |
|
compute_real_filename(filename, sizeof(filename) - 1); |
|
} |
|
|
|
/* "redirect" request to index.html */ |
|
if (!strlen(filename)) |
|
av_strlcpy(filename, "index.html", sizeof(filename) - 1); |
|
|
|
stream = config.first_stream; |
|
while (stream) { |
|
if (!strcmp(stream->filename, filename) && validate_acl(stream, c)) |
|
break; |
|
stream = stream->next; |
|
} |
|
if (!stream) { |
|
snprintf(msg, sizeof(msg), "File '%s' not found", url); |
|
http_log("File '%s' not found\n", url); |
|
goto send_error; |
|
} |
|
|
|
c->stream = stream; |
|
memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams)); |
|
memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams)); |
|
|
|
if (stream->stream_type == STREAM_TYPE_REDIRECT) { |
|
c->http_error = 301; |
|
q = c->buffer; |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 301 Moved\r\n" |
|
"Location: %s\r\n" |
|
"Content-type: text/html\r\n" |
|
"\r\n" |
|
"<!DOCTYPE html>\n" |
|
"<html><head><title>Moved</title></head><body>\r\n" |
|
"You should be <a href=\"%s\">redirected</a>.\r\n" |
|
"</body></html>\r\n", |
|
stream->feed_filename, stream->feed_filename); |
|
q += strlen(q); |
|
/* prepare output buffer */ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = q; |
|
c->state = HTTPSTATE_SEND_HEADER; |
|
return 0; |
|
} |
|
|
|
/* If this is WMP, get the rate information */ |
|
if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { |
|
if (modify_current_stream(c, ratebuf)) { |
|
for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) { |
|
if (c->switch_feed_streams[i] >= 0) |
|
c->switch_feed_streams[i] = -1; |
|
} |
|
} |
|
} |
|
|
|
if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE) |
|
current_bandwidth += stream->bandwidth; |
|
|
|
/* If already streaming this feed, do not let another feeder start */ |
|
if (stream->feed_opened) { |
|
snprintf(msg, sizeof(msg), "This feed is already being received."); |
|
http_log("Feed '%s' already being received\n", stream->feed_filename); |
|
goto send_error; |
|
} |
|
|
|
if (c->post == 0 && config.max_bandwidth < current_bandwidth) { |
|
c->http_error = 503; |
|
q = c->buffer; |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 503 Server too busy\r\n" |
|
"Content-type: text/html\r\n" |
|
"\r\n" |
|
"<!DOCTYPE html>\n" |
|
"<html><head><title>Too busy</title></head><body>\r\n" |
|
"<p>The server is too busy to serve your request at " |
|
"this time.</p>\r\n" |
|
"<p>The bandwidth being served (including your stream) " |
|
"is %"PRIu64"kbit/s, and this exceeds the limit of " |
|
"%"PRIu64"kbit/s.</p>\r\n" |
|
"</body></html>\r\n", |
|
current_bandwidth, config.max_bandwidth); |
|
q += strlen(q); |
|
/* prepare output buffer */ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = q; |
|
c->state = HTTPSTATE_SEND_HEADER; |
|
return 0; |
|
} |
|
|
|
if (redir_type != REDIR_NONE) { |
|
const char *hostinfo = 0; |
|
|
|
for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { |
|
if (av_strncasecmp(p, "Host:", 5) == 0) { |
|
hostinfo = p + 5; |
|
break; |
|
} |
|
p = strchr(p, '\n'); |
|
if (!p) |
|
break; |
|
|
|
p++; |
|
} |
|
|
|
if (hostinfo) { |
|
char *eoh; |
|
char hostbuf[260]; |
|
|
|
while (av_isspace(*hostinfo)) |
|
hostinfo++; |
|
|
|
eoh = strchr(hostinfo, '\n'); |
|
if (eoh) { |
|
if (eoh[-1] == '\r') |
|
eoh--; |
|
|
|
if (eoh - hostinfo < sizeof(hostbuf) - 1) { |
|
memcpy(hostbuf, hostinfo, eoh - hostinfo); |
|
hostbuf[eoh - hostinfo] = 0; |
|
|
|
c->http_error = 200; |
|
q = c->buffer; |
|
switch(redir_type) { |
|
case REDIR_ASX: |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 200 ASX Follows\r\n" |
|
"Content-type: video/x-ms-asf\r\n" |
|
"\r\n" |
|
"<ASX Version=\"3\">\r\n" |
|
//"<!-- Autogenerated by ffserver -->\r\n" |
|
"<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n" |
|
"</ASX>\r\n", hostbuf, filename, info); |
|
q += strlen(q); |
|
break; |
|
case REDIR_RAM: |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 200 RAM Follows\r\n" |
|
"Content-type: audio/x-pn-realaudio\r\n" |
|
"\r\n" |
|
"# Autogenerated by ffserver\r\n" |
|
"http://%s/%s%s\r\n", hostbuf, filename, info); |
|
q += strlen(q); |
|
break; |
|
case REDIR_ASF: |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 200 ASF Redirect follows\r\n" |
|
"Content-type: video/x-ms-asf\r\n" |
|
"\r\n" |
|
"[Reference]\r\n" |
|
"Ref1=http://%s/%s%s\r\n", hostbuf, filename, info); |
|
q += strlen(q); |
|
break; |
|
case REDIR_RTSP: |
|
{ |
|
char hostname[256], *p; |
|
/* extract only hostname */ |
|
av_strlcpy(hostname, hostbuf, sizeof(hostname)); |
|
p = strrchr(hostname, ':'); |
|
if (p) |
|
*p = '\0'; |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 200 RTSP Redirect follows\r\n" |
|
/* XXX: incorrect MIME type ? */ |
|
"Content-type: application/x-rtsp\r\n" |
|
"\r\n" |
|
"rtsp://%s:%d/%s\r\n", hostname, ntohs(config.rtsp_addr.sin_port), filename); |
|
q += strlen(q); |
|
} |
|
break; |
|
case REDIR_SDP: |
|
{ |
|
uint8_t *sdp_data; |
|
int sdp_data_size; |
|
socklen_t len; |
|
struct sockaddr_in my_addr; |
|
|
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 200 OK\r\n" |
|
"Content-type: application/sdp\r\n" |
|
"\r\n"); |
|
q += strlen(q); |
|
|
|
len = sizeof(my_addr); |
|
|
|
/* XXX: Should probably fail? */ |
|
if (getsockname(c->fd, (struct sockaddr *)&my_addr, &len)) |
|
http_log("getsockname() failed\n"); |
|
|
|
/* XXX: should use a dynamic buffer */ |
|
sdp_data_size = prepare_sdp_description(stream, |
|
&sdp_data, |
|
my_addr.sin_addr); |
|
if (sdp_data_size > 0) { |
|
memcpy(q, sdp_data, sdp_data_size); |
|
q += sdp_data_size; |
|
*q = '\0'; |
|
av_freep(&sdp_data); |
|
} |
|
} |
|
break; |
|
default: |
|
abort(); |
|
break; |
|
} |
|
|
|
/* prepare output buffer */ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = q; |
|
c->state = HTTPSTATE_SEND_HEADER; |
|
return 0; |
|
} |
|
} |
|
} |
|
|
|
snprintf(msg, sizeof(msg), "ASX/RAM file not handled"); |
|
goto send_error; |
|
} |
|
|
|
stream->conns_served++; |
|
|
|
/* XXX: add there authenticate and IP match */ |
|
|
|
if (c->post) { |
|
/* if post, it means a feed is being sent */ |
|
if (!stream->is_feed) { |
|
/* However it might be a status report from WMP! Let us log the |
|
* data as it might come handy one day. */ |
|
const char *logline = 0; |
|
int client_id = 0; |
|
|
|
for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { |
|
if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) { |
|
logline = p; |
|
break; |
|
} |
|
if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0) |
|
client_id = strtol(p + 18, 0, 10); |
|
p = strchr(p, '\n'); |
|
if (!p) |
|
break; |
|
|
|
p++; |
|
} |
|
|
|
if (logline) { |
|
char *eol = strchr(logline, '\n'); |
|
|
|
logline += 17; |
|
|
|
if (eol) { |
|
if (eol[-1] == '\r') |
|
eol--; |
|
http_log("%.*s\n", (int) (eol - logline), logline); |
|
c->suppress_log = 1; |
|
} |
|
} |
|
|
|
#ifdef DEBUG |
|
http_log("\nGot request:\n%s\n", c->buffer); |
|
#endif |
|
|
|
if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { |
|
HTTPContext *wmpc; |
|
|
|
/* Now we have to find the client_id */ |
|
for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) { |
|
if (wmpc->wmp_client_id == client_id) |
|
break; |
|
} |
|
|
|
if (wmpc && modify_current_stream(wmpc, ratebuf)) |
|
wmpc->switch_pending = 1; |
|
} |
|
|
|
snprintf(msg, sizeof(msg), "POST command not handled"); |
|
c->stream = 0; |
|
goto send_error; |
|
} |
|
if (http_start_receive_data(c) < 0) { |
|
snprintf(msg, sizeof(msg), "could not open feed"); |
|
goto send_error; |
|
} |
|
c->http_error = 0; |
|
c->state = HTTPSTATE_RECEIVE_DATA; |
|
return 0; |
|
} |
|
|
|
#ifdef DEBUG |
|
if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0) |
|
http_log("\nGot request:\n%s\n", c->buffer); |
|
#endif |
|
|
|
if (c->stream->stream_type == STREAM_TYPE_STATUS) |
|
goto send_status; |
|
|
|
/* open input stream */ |
|
if (open_input_stream(c, info) < 0) { |
|
snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url); |
|
goto send_error; |
|
} |
|
|
|
/* prepare HTTP header */ |
|
c->buffer[0] = 0; |
|
av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n"); |
|
mime_type = c->stream->fmt->mime_type; |
|
if (!mime_type) |
|
mime_type = "application/x-octet-stream"; |
|
av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n"); |
|
|
|
/* for asf, we need extra headers */ |
|
if (!strcmp(c->stream->fmt->name,"asf_stream")) { |
|
/* Need to allocate a client id */ |
|
|
|
c->wmp_client_id = av_lfg_get(&random_state); |
|
|
|
av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id); |
|
} |
|
av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type); |
|
av_strlcatf(c->buffer, c->buffer_size, "\r\n"); |
|
q = c->buffer + strlen(c->buffer); |
|
|
|
/* prepare output buffer */ |
|
c->http_error = 0; |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = q; |
|
c->state = HTTPSTATE_SEND_HEADER; |
|
return 0; |
|
send_error: |
|
c->http_error = 404; |
|
q = c->buffer; |
|
if (!htmlencode(msg, &encoded_msg)) { |
|
http_log("Could not encode filename '%s' as HTML\n", msg); |
|
} |
|
snprintf(q, c->buffer_size, |
|
"HTTP/1.0 404 Not Found\r\n" |
|
"Content-type: text/html\r\n" |
|
"\r\n" |
|
"<!DOCTYPE html>\n" |
|
"<html>\n" |
|
"<head>\n" |
|
"<meta charset=\"UTF-8\">\n" |
|
"<title>404 Not Found</title>\n" |
|
"</head>\n" |
|
"<body>%s</body>\n" |
|
"</html>\n", encoded_msg? encoded_msg : "File not found"); |
|
q += strlen(q); |
|
/* prepare output buffer */ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = q; |
|
c->state = HTTPSTATE_SEND_HEADER; |
|
av_freep(&encoded_msg); |
|
return 0; |
|
send_status: |
|
compute_status(c); |
|
/* horrible: we use this value to avoid |
|
* going to the send data state */ |
|
c->http_error = 200; |
|
c->state = HTTPSTATE_SEND_HEADER; |
|
return 0; |
|
} |
|
|
|
static void fmt_bytecount(AVIOContext *pb, int64_t count) |
|
{ |
|
static const char suffix[] = " kMGTP"; |
|
const char *s; |
|
|
|
for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++); |
|
|
|
avio_printf(pb, "%"PRId64"%c", count, *s); |
|
} |
|
|
|
static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream) |
|
{ |
|
int i, stream_no; |
|
const char *type = "unknown"; |
|
char parameters[64]; |
|
LayeredAVStream *st; |
|
AVCodec *codec; |
|
|
|
stream_no = stream->nb_streams; |
|
|
|
avio_printf(pb, "<table><tr><th>Stream<th>" |
|
"type<th>kbit/s<th>codec<th>" |
|
"Parameters\n"); |
|
|
|
for (i = 0; i < stream_no; i++) { |
|
st = stream->streams[i]; |
|
codec = avcodec_find_encoder(st->codecpar->codec_id); |
|
|
|
parameters[0] = 0; |
|
|
|
switch(st->codecpar->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
type = "audio"; |
|
snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", |
|
st->codecpar->channels, st->codecpar->sample_rate); |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
type = "video"; |
|
snprintf(parameters, sizeof(parameters), |
|
"%dx%d, q=%d-%d, fps=%d", st->codecpar->width, |
|
st->codecpar->height, st->codec->qmin, st->codec->qmax, |
|
st->time_base.den / st->time_base.num); |
|
break; |
|
default: |
|
abort(); |
|
} |
|
|
|
avio_printf(pb, "<tr><td>%d<td>%s<td>%"PRId64 |
|
"<td>%s<td>%s\n", |
|
i, type, (int64_t)st->codecpar->bit_rate/1000, |
|
codec ? codec->name : "", parameters); |
|
} |
|
|
|
avio_printf(pb, "</table>\n"); |
|
} |
|
|
|
static void clean_html(char *clean, int clean_len, char *dirty) |
|
{ |
|
int i, o; |
|
|
|
for (o = i = 0; o+10 < clean_len && dirty[i];) { |
|
int len = strspn(dirty+i, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$-_.+!*(),?/ :;%"); |
|
if (len) { |
|
if (o + len >= clean_len) |
|
break; |
|
memcpy(clean + o, dirty + i, len); |
|
i += len; |
|
o += len; |
|
} else { |
|
int c = dirty[i++]; |
|
switch (c) { |
|
case '&': av_strlcat(clean+o, "&" , clean_len - o); break; |
|
case '<': av_strlcat(clean+o, "<" , clean_len - o); break; |
|
case '>': av_strlcat(clean+o, ">" , clean_len - o); break; |
|
case '\'': av_strlcat(clean+o, "'" , clean_len - o); break; |
|
case '\"': av_strlcat(clean+o, """ , clean_len - o); break; |
|
default: av_strlcat(clean+o, "☹", clean_len - o); break; |
|
} |
|
o += strlen(clean+o); |
|
} |
|
} |
|
clean[o] = 0; |
|
} |
|
|
|
static void compute_status(HTTPContext *c) |
|
{ |
|
HTTPContext *c1; |
|
FFServerStream *stream; |
|
char *p; |
|
time_t ti; |
|
int i, len; |
|
AVIOContext *pb; |
|
|
|
if (avio_open_dyn_buf(&pb) < 0) { |
|
/* XXX: return an error ? */ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = c->buffer; |
|
return; |
|
} |
|
|
|
avio_printf(pb, "HTTP/1.0 200 OK\r\n"); |
|
avio_printf(pb, "Content-type: text/html\r\n"); |
|
avio_printf(pb, "Pragma: no-cache\r\n"); |
|
avio_printf(pb, "\r\n"); |
|
|
|
avio_printf(pb, "<!DOCTYPE html>\n"); |
|
avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name); |
|
if (c->stream->feed_filename[0]) |
|
avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", |
|
c->stream->feed_filename); |
|
avio_printf(pb, "</head>\n<body>"); |
|
avio_printf(pb, "<h1>%s Status</h1>\n", program_name); |
|
/* format status */ |
|
avio_printf(pb, "<h2>Available Streams</h2>\n"); |
|
avio_printf(pb, "<table>\n"); |
|
avio_printf(pb, "<tr><th>Path<th>Served<br>Conns<th><br>bytes<th>Format<th>Bit rate<br>kbit/s<th>Video<br>kbit/s<th><br>Codec<th>Audio<br>kbit/s<th><br>Codec<th>Feed\n"); |
|
stream = config.first_stream; |
|
while (stream) { |
|
char sfilename[1024]; |
|
char *eosf; |
|
|
|
if (stream->feed == stream) { |
|
stream = stream->next; |
|
continue; |
|
} |
|
|
|
av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10); |
|
eosf = sfilename + strlen(sfilename); |
|
if (eosf - sfilename >= 4) { |
|
if (strcmp(eosf - 4, ".asf") == 0) |
|
strcpy(eosf - 4, ".asx"); |
|
else if (strcmp(eosf - 3, ".rm") == 0) |
|
strcpy(eosf - 3, ".ram"); |
|
else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { |
|
/* generate a sample RTSP director if |
|
* unicast. Generate an SDP redirector if |
|
* multicast */ |
|
eosf = strrchr(sfilename, '.'); |
|
if (!eosf) |
|
eosf = sfilename + strlen(sfilename); |
|
if (stream->is_multicast) |
|
strcpy(eosf, ".sdp"); |
|
else |
|
strcpy(eosf, ".rtsp"); |
|
} |
|
} |
|
|
|
avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ", |
|
sfilename, stream->filename); |
|
avio_printf(pb, "<td> %d <td> ", |
|
stream->conns_served); |
|
// TODO: Investigate if we can make http bitexact so it always produces the same count of bytes |
|
if (!config.bitexact) |
|
fmt_bytecount(pb, stream->bytes_served); |
|
|
|
switch(stream->stream_type) { |
|
case STREAM_TYPE_LIVE: { |
|
int audio_bit_rate = 0; |
|
int video_bit_rate = 0; |
|
const char *audio_codec_name = ""; |
|
const char *video_codec_name = ""; |
|
const char *audio_codec_name_extra = ""; |
|
const char *video_codec_name_extra = ""; |
|
|
|
for(i=0;i<stream->nb_streams;i++) { |
|
LayeredAVStream *st = stream->streams[i]; |
|
AVCodec *codec = avcodec_find_encoder(st->codecpar->codec_id); |
|
|
|
switch(st->codecpar->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
audio_bit_rate += st->codecpar->bit_rate; |
|
if (codec) { |
|
if (*audio_codec_name) |
|
audio_codec_name_extra = "..."; |
|
audio_codec_name = codec->name; |
|
} |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
video_bit_rate += st->codecpar->bit_rate; |
|
if (codec) { |
|
if (*video_codec_name) |
|
video_codec_name_extra = "..."; |
|
video_codec_name = codec->name; |
|
} |
|
break; |
|
case AVMEDIA_TYPE_DATA: |
|
video_bit_rate += st->codecpar->bit_rate; |
|
break; |
|
default: |
|
abort(); |
|
} |
|
} |
|
|
|
avio_printf(pb, "<td> %s <td> %d <td> %d <td> %s %s <td> " |
|
"%d <td> %s %s", |
|
stream->fmt->name, stream->bandwidth, |
|
video_bit_rate / 1000, video_codec_name, |
|
video_codec_name_extra, audio_bit_rate / 1000, |
|
audio_codec_name, audio_codec_name_extra); |
|
|
|
if (stream->feed) |
|
avio_printf(pb, "<td>%s", stream->feed->filename); |
|
else |
|
avio_printf(pb, "<td>%s", stream->feed_filename); |
|
avio_printf(pb, "\n"); |
|
} |
|
break; |
|
default: |
|
avio_printf(pb, "<td> - <td> - " |
|
"<td> - <td><td> - <td>\n"); |
|
break; |
|
} |
|
stream = stream->next; |
|
} |
|
avio_printf(pb, "</table>\n"); |
|
|
|
stream = config.first_stream; |
|
while (stream) { |
|
|
|
if (stream->feed != stream) { |
|
stream = stream->next; |
|
continue; |
|
} |
|
|
|
avio_printf(pb, "<h2>Feed %s</h2>", stream->filename); |
|
if (stream->pid) { |
|
avio_printf(pb, "Running as pid %"PRId64".\n", (int64_t) stream->pid); |
|
|
|
#if defined(linux) |
|
{ |
|
FILE *pid_stat; |
|
char ps_cmd[64]; |
|
|
|
/* This is somewhat linux specific I guess */ |
|
snprintf(ps_cmd, sizeof(ps_cmd), |
|
"ps -o \"%%cpu,cputime\" --no-headers %"PRId64"", |
|
(int64_t) stream->pid); |
|
|
|
pid_stat = popen(ps_cmd, "r"); |
|
if (pid_stat) { |
|
char cpuperc[10]; |
|
char cpuused[64]; |
|
|
|
if (fscanf(pid_stat, "%9s %63s", cpuperc, cpuused) == 2) { |
|
avio_printf(pb, "Currently using %s%% of the cpu. " |
|
"Total time used %s.\n", |
|
cpuperc, cpuused); |
|
} |
|
fclose(pid_stat); |
|
} |
|
} |
|
#endif |
|
|
|
avio_printf(pb, "<p>"); |
|
} |
|
|
|
print_stream_params(pb, stream); |
|
stream = stream->next; |
|
} |
|
|
|
/* connection status */ |
|
avio_printf(pb, "<h2>Connection Status</h2>\n"); |
|
|
|
avio_printf(pb, "Number of connections: %d / %d<br>\n", |
|
nb_connections, config.nb_max_connections); |
|
|
|
avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n", |
|
current_bandwidth, config.max_bandwidth); |
|
|
|
avio_printf(pb, "<table>\n"); |
|
avio_printf(pb, "<tr><th>#<th>File<th>IP<th>URL<th>Proto<th>State<th>Target " |
|
"bit/s<th>Actual bit/s<th>Bytes transferred\n"); |
|
c1 = first_http_ctx; |
|
i = 0; |
|
while (c1) { |
|
int bitrate; |
|
int j; |
|
|
|
bitrate = 0; |
|
if (c1->stream) { |
|
for (j = 0; j < c1->stream->nb_streams; j++) { |
|
if (!c1->stream->feed) |
|
bitrate += c1->stream->streams[j]->codecpar->bit_rate; |
|
else if (c1->feed_streams[j] >= 0) |
|
bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codecpar->bit_rate; |
|
} |
|
} |
|
|
|
i++; |
|
p = inet_ntoa(c1->from_addr.sin_addr); |
|
clean_html(c1->clean_url, sizeof(c1->clean_url), c1->url); |
|
avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td>%s" |
|
"<td>", |
|
i, c1->stream ? c1->stream->filename : "", |
|
c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", |
|
p, |
|
c1->clean_url, |
|
c1->protocol, http_state[c1->state]); |
|
fmt_bytecount(pb, bitrate); |
|
avio_printf(pb, "<td>"); |
|
fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8); |
|
avio_printf(pb, "<td>"); |
|
fmt_bytecount(pb, c1->data_count); |
|
avio_printf(pb, "\n"); |
|
c1 = c1->next; |
|
} |
|
avio_printf(pb, "</table>\n"); |
|
|
|
if (!config.bitexact) { |
|
/* date */ |
|
ti = time(NULL); |
|
p = ctime(&ti); |
|
avio_printf(pb, "<hr>Generated at %s", p); |
|
} |
|
avio_printf(pb, "</body>\n</html>\n"); |
|
|
|
len = avio_close_dyn_buf(pb, &c->pb_buffer); |
|
c->buffer_ptr = c->pb_buffer; |
|
c->buffer_end = c->pb_buffer + len; |
|
} |
|
|
|
static int open_input_stream(HTTPContext *c, const char *info) |
|
{ |
|
char buf[128]; |
|
char input_filename[1024]; |
|
AVFormatContext *s = NULL; |
|
int buf_size, i, ret; |
|
int64_t stream_pos; |
|
|
|
/* find file name */ |
|
if (c->stream->feed) { |
|
strcpy(input_filename, c->stream->feed->feed_filename); |
|
buf_size = FFM_PACKET_SIZE; |
|
/* compute position (absolute time) */ |
|
if (av_find_info_tag(buf, sizeof(buf), "date", info)) { |
|
if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) { |
|
http_log("Invalid date specification '%s' for stream\n", buf); |
|
return ret; |
|
} |
|
} else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) { |
|
int prebuffer = strtol(buf, 0, 10); |
|
stream_pos = av_gettime() - prebuffer * (int64_t)1000000; |
|
} else |
|
stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000; |
|
} else { |
|
strcpy(input_filename, c->stream->feed_filename); |
|
buf_size = 0; |
|
/* compute position (relative time) */ |
|
if (av_find_info_tag(buf, sizeof(buf), "date", info)) { |
|
if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) { |
|
http_log("Invalid date specification '%s' for stream\n", buf); |
|
return ret; |
|
} |
|
} else |
|
stream_pos = 0; |
|
} |
|
if (!input_filename[0]) { |
|
http_log("No filename was specified for stream\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
/* open stream */ |
|
ret = avformat_open_input(&s, input_filename, c->stream->ifmt, |
|
&c->stream->in_opts); |
|
if (ret < 0) { |
|
http_log("Could not open input '%s': %s\n", |
|
input_filename, av_err2str(ret)); |
|
return ret; |
|
} |
|
|
|
/* set buffer size */ |
|
if (buf_size > 0) { |
|
ret = ffio_set_buf_size(s->pb, buf_size); |
|
if (ret < 0) { |
|
http_log("Failed to set buffer size\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
s->flags |= AVFMT_FLAG_GENPTS; |
|
c->fmt_in = s; |
|
if (strcmp(s->iformat->name, "ffm") && |
|
(ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) { |
|
http_log("Could not find stream info for input '%s'\n", input_filename); |
|
avformat_close_input(&s); |
|
return ret; |
|
} |
|
|
|
/* choose stream as clock source (we favor the video stream if |
|
* present) for packet sending */ |
|
c->pts_stream_index = 0; |
|
for(i=0;i<c->stream->nb_streams;i++) { |
|
if (c->pts_stream_index == 0 && |
|
c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) { |
|
c->pts_stream_index = i; |
|
} |
|
} |
|
|
|
if (c->fmt_in->iformat->read_seek) |
|
av_seek_frame(c->fmt_in, -1, stream_pos, 0); |
|
/* set the start time (needed for maxtime and RTP packet timing) */ |
|
c->start_time = cur_time; |
|
c->first_pts = AV_NOPTS_VALUE; |
|
return 0; |
|
} |
|
|
|
/* return the server clock (in us) */ |
|
static int64_t get_server_clock(HTTPContext *c) |
|
{ |
|
/* compute current pts value from system time */ |
|
return (cur_time - c->start_time) * 1000; |
|
} |
|
|
|
/* return the estimated time (in us) at which the current packet must be sent */ |
|
static int64_t get_packet_send_clock(HTTPContext *c) |
|
{ |
|
int bytes_left, bytes_sent, frame_bytes; |
|
|
|
frame_bytes = c->cur_frame_bytes; |
|
if (frame_bytes <= 0) |
|
return c->cur_pts; |
|
|
|
bytes_left = c->buffer_end - c->buffer_ptr; |
|
bytes_sent = frame_bytes - bytes_left; |
|
return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes; |
|
} |
|
|
|
|
|
static int http_prepare_data(HTTPContext *c) |
|
{ |
|
int i, len, ret; |
|
AVFormatContext *ctx; |
|
|
|
av_freep(&c->pb_buffer); |
|
switch(c->state) { |
|
case HTTPSTATE_SEND_DATA_HEADER: |
|
ctx = avformat_alloc_context(); |
|
if (!ctx) |
|
return AVERROR(ENOMEM); |
|
c->pfmt_ctx = ctx; |
|
av_dict_copy(&(c->pfmt_ctx->metadata), c->stream->metadata, 0); |
|
|
|
for(i=0;i<c->stream->nb_streams;i++) { |
|
LayeredAVStream *src; |
|
AVStream *st = avformat_new_stream(c->pfmt_ctx, NULL); |
|
if (!st) |
|
return AVERROR(ENOMEM); |
|
|
|
/* if file or feed, then just take streams from FFServerStream |
|
* struct */ |
|
if (!c->stream->feed || |
|
c->stream->feed == c->stream) |
|
src = c->stream->streams[i]; |
|
else |
|
src = c->stream->feed->streams[c->stream->feed_streams[i]]; |
|
|
|
unlayer_stream(c->pfmt_ctx->streams[i], src); //TODO we no longer copy st->internal, does this matter? |
|
av_assert0(!c->pfmt_ctx->streams[i]->priv_data); |
|
|
|
if (src->codec->flags & AV_CODEC_FLAG_BITEXACT) |
|
c->pfmt_ctx->flags |= AVFMT_FLAG_BITEXACT; |
|
} |
|
/* set output format parameters */ |
|
c->pfmt_ctx->oformat = c->stream->fmt; |
|
av_assert0(c->pfmt_ctx->nb_streams == c->stream->nb_streams); |
|
|
|
c->got_key_frame = 0; |
|
|
|
/* prepare header and save header data in a stream */ |
|
if (avio_open_dyn_buf(&c->pfmt_ctx->pb) < 0) { |
|
/* XXX: potential leak */ |
|
return -1; |
|
} |
|
c->pfmt_ctx->pb->seekable = 0; |
|
|
|
/* |
|
* HACK to avoid MPEG-PS muxer to spit many underflow errors |
|
* Default value from FFmpeg |
|
* Try to set it using configuration option |
|
*/ |
|
c->pfmt_ctx->max_delay = (int)(0.7*AV_TIME_BASE); |
|
|
|
if ((ret = avformat_write_header(c->pfmt_ctx, NULL)) < 0) { |
|
http_log("Error writing output header for stream '%s': %s\n", |
|
c->stream->filename, av_err2str(ret)); |
|
return ret; |
|
} |
|
av_dict_free(&c->pfmt_ctx->metadata); |
|
|
|
len = avio_close_dyn_buf(c->pfmt_ctx->pb, &c->pb_buffer); |
|
c->buffer_ptr = c->pb_buffer; |
|
c->buffer_end = c->pb_buffer + len; |
|
|
|
c->state = HTTPSTATE_SEND_DATA; |
|
c->last_packet_sent = 0; |
|
break; |
|
case HTTPSTATE_SEND_DATA: |
|
/* find a new packet */ |
|
/* read a packet from the input stream */ |
|
if (c->stream->feed) |
|
ffm_set_write_index(c->fmt_in, |
|
c->stream->feed->feed_write_index, |
|
c->stream->feed->feed_size); |
|
|
|
if (c->stream->max_time && |
|
c->stream->max_time + c->start_time - cur_time < 0) |
|
/* We have timed out */ |
|
c->state = HTTPSTATE_SEND_DATA_TRAILER; |
|
else { |
|
AVPacket pkt; |
|
redo: |
|
ret = av_read_frame(c->fmt_in, &pkt); |
|
if (ret < 0) { |
|
if (c->stream->feed) { |
|
/* if coming from feed, it means we reached the end of the |
|
* ffm file, so must wait for more data */ |
|
c->state = HTTPSTATE_WAIT_FEED; |
|
return 1; /* state changed */ |
|
} |
|
if (ret == AVERROR(EAGAIN)) { |
|
/* input not ready, come back later */ |
|
return 0; |
|
} |
|
if (c->stream->loop) { |
|
avformat_close_input(&c->fmt_in); |
|
if (open_input_stream(c, "") < 0) |
|
goto no_loop; |
|
goto redo; |
|
} else { |
|
no_loop: |
|
/* must send trailer now because EOF or error */ |
|
c->state = HTTPSTATE_SEND_DATA_TRAILER; |
|
} |
|
} else { |
|
int source_index = pkt.stream_index; |
|
/* update first pts if needed */ |
|
if (c->first_pts == AV_NOPTS_VALUE && pkt.dts != AV_NOPTS_VALUE) { |
|
c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q); |
|
c->start_time = cur_time; |
|
} |
|
/* send it to the appropriate stream */ |
|
if (c->stream->feed) { |
|
/* if coming from a feed, select the right stream */ |
|
if (c->switch_pending) { |
|
c->switch_pending = 0; |
|
for(i=0;i<c->stream->nb_streams;i++) { |
|
if (c->switch_feed_streams[i] == pkt.stream_index) |
|
if (pkt.flags & AV_PKT_FLAG_KEY) |
|
c->switch_feed_streams[i] = -1; |
|
if (c->switch_feed_streams[i] >= 0) |
|
c->switch_pending = 1; |
|
} |
|
} |
|
for(i=0;i<c->stream->nb_streams;i++) { |
|
if (c->stream->feed_streams[i] == pkt.stream_index) { |
|
AVStream *st = c->fmt_in->streams[source_index]; |
|
pkt.stream_index = i; |
|
if (pkt.flags & AV_PKT_FLAG_KEY && |
|
(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO || |
|
c->stream->nb_streams == 1)) |
|
c->got_key_frame = 1; |
|
if (!c->stream->send_on_key || c->got_key_frame) |
|
goto send_it; |
|
} |
|
} |
|
} else { |
|
AVStream *ist, *ost; |
|
send_it: |
|
ist = c->fmt_in->streams[source_index]; |
|
/* specific handling for RTP: we use several |
|
* output streams (one for each RTP connection). |
|
* XXX: need more abstract handling */ |
|
if (c->is_packetized) { |
|
/* compute send time and duration */ |
|
if (pkt.dts != AV_NOPTS_VALUE) { |
|
c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q); |
|
c->cur_pts -= c->first_pts; |
|
} |
|
c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q); |
|
/* find RTP context */ |
|
c->packet_stream_index = pkt.stream_index; |
|
ctx = c->rtp_ctx[c->packet_stream_index]; |
|
if(!ctx) { |
|
av_packet_unref(&pkt); |
|
break; |
|
} |
|
/* only one stream per RTP connection */ |
|
pkt.stream_index = 0; |
|
} else { |
|
ctx = c->pfmt_ctx; |
|
/* Fudge here */ |
|
} |
|
|
|
if (c->is_packetized) { |
|
int max_packet_size; |
|
if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) |
|
max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; |
|
else |
|
max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size; |
|
ret = ffio_open_dyn_packet_buf(&ctx->pb, |
|
max_packet_size); |
|
} else |
|
ret = avio_open_dyn_buf(&ctx->pb); |
|
|
|
if (ret < 0) { |
|
/* XXX: potential leak */ |
|
return -1; |
|
} |
|
ost = ctx->streams[pkt.stream_index]; |
|
|
|
ctx->pb->seekable = 0; |
|
if (pkt.dts != AV_NOPTS_VALUE) |
|
pkt.dts = av_rescale_q(pkt.dts, ist->time_base, |
|
ost->time_base); |
|
if (pkt.pts != AV_NOPTS_VALUE) |
|
pkt.pts = av_rescale_q(pkt.pts, ist->time_base, |
|
ost->time_base); |
|
pkt.duration = av_rescale_q(pkt.duration, ist->time_base, |
|
ost->time_base); |
|
if ((ret = av_write_frame(ctx, &pkt)) < 0) { |
|
http_log("Error writing frame to output for stream '%s': %s\n", |
|
c->stream->filename, av_err2str(ret)); |
|
c->state = HTTPSTATE_SEND_DATA_TRAILER; |
|
} |
|
|
|
av_freep(&c->pb_buffer); |
|
len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); |
|
ctx->pb = NULL; |
|
c->cur_frame_bytes = len; |
|
c->buffer_ptr = c->pb_buffer; |
|
c->buffer_end = c->pb_buffer + len; |
|
|
|
if (len == 0) { |
|
av_packet_unref(&pkt); |
|
goto redo; |
|
} |
|
} |
|
av_packet_unref(&pkt); |
|
} |
|
} |
|
break; |
|
default: |
|
case HTTPSTATE_SEND_DATA_TRAILER: |
|
/* last packet test ? */ |
|
if (c->last_packet_sent || c->is_packetized) |
|
return -1; |
|
ctx = c->pfmt_ctx; |
|
/* prepare header */ |
|
if (avio_open_dyn_buf(&ctx->pb) < 0) { |
|
/* XXX: potential leak */ |
|
return -1; |
|
} |
|
c->pfmt_ctx->pb->seekable = 0; |
|
av_write_trailer(ctx); |
|
len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); |
|
c->buffer_ptr = c->pb_buffer; |
|
c->buffer_end = c->pb_buffer + len; |
|
|
|
c->last_packet_sent = 1; |
|
break; |
|
} |
|
return 0; |
|
} |
|
|
|
/* should convert the format at the same time */ |
|
/* send data starting at c->buffer_ptr to the output connection |
|
* (either UDP or TCP) |
|
*/ |
|
static int http_send_data(HTTPContext *c) |
|
{ |
|
int len, ret; |
|
|
|
for(;;) { |
|
if (c->buffer_ptr >= c->buffer_end) { |
|
ret = http_prepare_data(c); |
|
if (ret < 0) |
|
return -1; |
|
else if (ret) |
|
/* state change requested */ |
|
break; |
|
} else { |
|
if (c->is_packetized) { |
|
/* RTP data output */ |
|
len = c->buffer_end - c->buffer_ptr; |
|
if (len < 4) { |
|
/* fail safe - should never happen */ |
|
fail1: |
|
c->buffer_ptr = c->buffer_end; |
|
return 0; |
|
} |
|
len = (c->buffer_ptr[0] << 24) | |
|
(c->buffer_ptr[1] << 16) | |
|
(c->buffer_ptr[2] << 8) | |
|
(c->buffer_ptr[3]); |
|
if (len > (c->buffer_end - c->buffer_ptr)) |
|
goto fail1; |
|
if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) { |
|
/* nothing to send yet: we can wait */ |
|
return 0; |
|
} |
|
|
|
c->data_count += len; |
|
update_datarate(&c->datarate, c->data_count); |
|
if (c->stream) |
|
c->stream->bytes_served += len; |
|
|
|
if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) { |
|
/* RTP packets are sent inside the RTSP TCP connection */ |
|
AVIOContext *pb; |
|
int interleaved_index, size; |
|
uint8_t header[4]; |
|
HTTPContext *rtsp_c; |
|
|
|
rtsp_c = c->rtsp_c; |
|
/* if no RTSP connection left, error */ |
|
if (!rtsp_c) |
|
return -1; |
|
/* if already sending something, then wait. */ |
|
if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST) |
|
break; |
|
if (avio_open_dyn_buf(&pb) < 0) |
|
goto fail1; |
|
interleaved_index = c->packet_stream_index * 2; |
|
/* RTCP packets are sent at odd indexes */ |
|
if (c->buffer_ptr[1] == 200) |
|
interleaved_index++; |
|
/* write RTSP TCP header */ |
|
header[0] = '$'; |
|
header[1] = interleaved_index; |
|
header[2] = len >> 8; |
|
header[3] = len; |
|
avio_write(pb, header, 4); |
|
/* write RTP packet data */ |
|
c->buffer_ptr += 4; |
|
avio_write(pb, c->buffer_ptr, len); |
|
size = avio_close_dyn_buf(pb, &c->packet_buffer); |
|
/* prepare asynchronous TCP sending */ |
|
rtsp_c->packet_buffer_ptr = c->packet_buffer; |
|
rtsp_c->packet_buffer_end = c->packet_buffer + size; |
|
c->buffer_ptr += len; |
|
|
|
/* send everything we can NOW */ |
|
len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr, |
|
rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0); |
|
if (len > 0) |
|
rtsp_c->packet_buffer_ptr += len; |
|
if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) { |
|
/* if we could not send all the data, we will |
|
* send it later, so a new state is needed to |
|
* "lock" the RTSP TCP connection */ |
|
rtsp_c->state = RTSPSTATE_SEND_PACKET; |
|
break; |
|
} else |
|
/* all data has been sent */ |
|
av_freep(&c->packet_buffer); |
|
} else { |
|
/* send RTP packet directly in UDP */ |
|
c->buffer_ptr += 4; |
|
ffurl_write(c->rtp_handles[c->packet_stream_index], |
|
c->buffer_ptr, len); |
|
c->buffer_ptr += len; |
|
/* here we continue as we can send several packets |
|
* per 10 ms slot */ |
|
} |
|
} else { |
|
/* TCP data output */ |
|
len = send(c->fd, c->buffer_ptr, |
|
c->buffer_end - c->buffer_ptr, 0); |
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) |
|
/* error : close connection */ |
|
return -1; |
|
else |
|
return 0; |
|
} |
|
c->buffer_ptr += len; |
|
|
|
c->data_count += len; |
|
update_datarate(&c->datarate, c->data_count); |
|
if (c->stream) |
|
c->stream->bytes_served += len; |
|
break; |
|
} |
|
} |
|
} /* for(;;) */ |
|
return 0; |
|
} |
|
|
|
static int http_start_receive_data(HTTPContext *c) |
|
{ |
|
int fd; |
|
int ret; |
|
int64_t ret64; |
|
|
|
if (c->stream->feed_opened) { |
|
http_log("Stream feed '%s' was not opened\n", |
|
c->stream->feed_filename); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
/* Don't permit writing to this one */ |
|
if (c->stream->readonly) { |
|
http_log("Cannot write to read-only file '%s'\n", |
|
c->stream->feed_filename); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
/* open feed */ |
|
fd = open(c->stream->feed_filename, O_RDWR); |
|
if (fd < 0) { |
|
ret = AVERROR(errno); |
|
http_log("Could not open feed file '%s': %s\n", |
|
c->stream->feed_filename, strerror(errno)); |
|
return ret; |
|
} |
|
c->feed_fd = fd; |
|
|
|
if (c->stream->truncate) { |
|
/* truncate feed file */ |
|
ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE); |
|
http_log("Truncating feed file '%s'\n", c->stream->feed_filename); |
|
if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) { |
|
ret = AVERROR(errno); |
|
http_log("Error truncating feed file '%s': %s\n", |
|
c->stream->feed_filename, strerror(errno)); |
|
return ret; |
|
} |
|
} else { |
|
ret64 = ffm_read_write_index(fd); |
|
if (ret64 < 0) { |
|
http_log("Error reading write index from feed file '%s': %s\n", |
|
c->stream->feed_filename, strerror(errno)); |
|
return ret64; |
|
} |
|
c->stream->feed_write_index = ret64; |
|
} |
|
|
|
c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), |
|
FFM_PACKET_SIZE); |
|
c->stream->feed_size = lseek(fd, 0, SEEK_END); |
|
lseek(fd, 0, SEEK_SET); |
|
|
|
/* init buffer input */ |
|
c->buffer_ptr = c->buffer; |
|
c->buffer_end = c->buffer + FFM_PACKET_SIZE; |
|
c->stream->feed_opened = 1; |
|
c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked"); |
|
return 0; |
|
} |
|
|
|
static int http_receive_data(HTTPContext *c) |
|
{ |
|
HTTPContext *c1; |
|
int len, loop_run = 0; |
|
|
|
while (c->chunked_encoding && !c->chunk_size && |
|
c->buffer_end > c->buffer_ptr) { |
|
/* read chunk header, if present */ |
|
len = recv(c->fd, c->buffer_ptr, 1, 0); |
|
|
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) |
|
/* error : close connection */ |
|
goto fail; |
|
return 0; |
|
} else if (len == 0) { |
|
/* end of connection : close it */ |
|
goto fail; |
|
} else if (c->buffer_ptr - c->buffer >= 2 && |
|
!memcmp(c->buffer_ptr - 1, "\r\n", 2)) { |
|
c->chunk_size = strtol(c->buffer, 0, 16); |
|
if (c->chunk_size <= 0) { // end of stream or invalid chunk size |
|
c->chunk_size = 0; |
|
goto fail; |
|
} |
|
c->buffer_ptr = c->buffer; |
|
break; |
|
} else if (++loop_run > 10) |
|
/* no chunk header, abort */ |
|
goto fail; |
|
else |
|
c->buffer_ptr++; |
|
} |
|
|
|
if (c->buffer_end > c->buffer_ptr) { |
|
len = recv(c->fd, c->buffer_ptr, |
|
FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0); |
|
if (len < 0) { |
|
if (ff_neterrno() != AVERROR(EAGAIN) && |
|
ff_neterrno() != AVERROR(EINTR)) |
|
/* error : close connection */ |
|
goto fail; |
|
} else if (len == 0) |
|
/* end of connection : close it */ |
|
goto fail; |
|
else { |
|
av_assert0(len <= c->chunk_size); |
|
c->chunk_size -= len; |
|
c->buffer_ptr += len; |
|
c->data_count += len; |
|
update_datarate(&c->datarate, c->data_count); |
|
} |
|
} |
|
|
|
if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) { |
|
if (c->buffer[0] != 'f' || |
|
c->buffer[1] != 'm') { |
|
http_log("Feed stream has become desynchronized -- disconnecting\n"); |
|
goto fail; |
|
} |
|
} |
|
|
|
if (c->buffer_ptr >= c->buffer_end) { |
|
FFServerStream *feed = c->stream; |
|
/* a packet has been received : write it in the store, except |
|
* if header */ |
|
if (c->data_count > FFM_PACKET_SIZE) { |
|
/* XXX: use llseek or url_seek |
|
* XXX: Should probably fail? */ |
|
if (lseek(c->feed_fd, feed->feed_write_index, SEEK_SET) == -1) |
|
http_log("Seek to %"PRId64" failed\n", feed->feed_write_index); |
|
|
|
if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) { |
|
http_log("Error writing to feed file: %s\n", strerror(errno)); |
|
goto fail; |
|
} |
|
|
|
feed->feed_write_index += FFM_PACKET_SIZE; |
|
/* update file size */ |
|
if (feed->feed_write_index > c->stream->feed_size) |
|
feed->feed_size = feed->feed_write_index; |
|
|
|
/* handle wrap around if max file size reached */ |
|
if (c->stream->feed_max_size && |
|
feed->feed_write_index >= c->stream->feed_max_size) |
|
feed->feed_write_index = FFM_PACKET_SIZE; |
|
|
|
/* write index */ |
|
if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) { |
|
http_log("Error writing index to feed file: %s\n", |
|
strerror(errno)); |
|
goto fail; |
|
} |
|
|
|
/* wake up any waiting connections */ |
|
for(c1 = first_http_ctx; c1; c1 = c1->next) { |
|
if (c1->state == HTTPSTATE_WAIT_FEED && |
|
c1->stream->feed == c->stream->feed) |
|
c1->state = HTTPSTATE_SEND_DATA; |
|
} |
|
} else { |
|
/* We have a header in our hands that contains useful data */ |
|
AVFormatContext *s = avformat_alloc_context(); |
|
AVIOContext *pb; |
|
AVInputFormat *fmt_in; |
|
int i; |
|
|
|
if (!s) |
|
goto fail; |
|
|
|
/* use feed output format name to find corresponding input format */ |
|
fmt_in = av_find_input_format(feed->fmt->name); |
|
if (!fmt_in) |
|
goto fail; |
|
|
|
pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer, |
|
0, NULL, NULL, NULL, NULL); |
|
if (!pb) |
|
goto fail; |
|
|
|
pb->seekable = 0; |
|
|
|
s->pb = pb; |
|
if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) { |
|
av_freep(&pb); |
|
goto fail; |
|
} |
|
|
|
/* Now we have the actual streams */ |
|
if (s->nb_streams != feed->nb_streams) { |
|
avformat_close_input(&s); |
|
av_freep(&pb); |
|
http_log("Feed '%s' stream number does not match registered feed\n", |
|
c->stream->feed_filename); |
|
goto fail; |
|
} |
|
|
|
for (i = 0; i < s->nb_streams; i++) { |
|
LayeredAVStream *fst = feed->streams[i]; |
|
AVStream *st = s->streams[i]; |
|
avcodec_parameters_to_context(fst->codec, st->codecpar); |
|
avcodec_parameters_from_context(fst->codecpar, fst->codec); |
|
} |
|
|
|
avformat_close_input(&s); |
|
av_freep(&pb); |
|
} |
|
c->buffer_ptr = c->buffer; |
|
} |
|
|
|
return 0; |
|
fail: |
|
c->stream->feed_opened = 0; |
|
close(c->feed_fd); |
|
/* wake up any waiting connections to stop waiting for feed */ |
|
for(c1 = first_http_ctx; c1; c1 = c1->next) { |
|
if (c1->state == HTTPSTATE_WAIT_FEED && |
|
c1->stream->feed == c->stream->feed) |
|
c1->state = HTTPSTATE_SEND_DATA_TRAILER; |
|
} |
|
return -1; |
|
} |
|
|
|
/********************************************************************/ |
|
/* RTSP handling */ |
|
|
|
static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number) |
|
{ |
|
const char *str; |
|
time_t ti; |
|
struct tm *tm; |
|
char buf2[32]; |
|
|
|
str = RTSP_STATUS_CODE2STRING(error_number); |
|
if (!str) |
|
str = "Unknown Error"; |
|
|
|
avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str); |
|
avio_printf(c->pb, "CSeq: %d\r\n", c->seq); |
|
|
|
/* output GMT time */ |
|
ti = time(NULL); |
|
tm = gmtime(&ti); |
|
strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm); |
|
avio_printf(c->pb, "Date: %s GMT\r\n", buf2); |
|
} |
|
|
|
static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number) |
|
{ |
|
rtsp_reply_header(c, error_number); |
|
avio_printf(c->pb, "\r\n"); |
|
} |
|
|
|
static int rtsp_parse_request(HTTPContext *c) |
|
{ |
|
const char *p, *p1, *p2; |
|
char cmd[32]; |
|
char url[1024]; |
|
char protocol[32]; |
|
char line[1024]; |
|
int len; |
|
RTSPMessageHeader header1 = { 0 }, *header = &header1; |
|
|
|
c->buffer_ptr[0] = '\0'; |
|
p = c->buffer; |
|
|
|
get_word(cmd, sizeof(cmd), &p); |
|
get_word(url, sizeof(url), &p); |
|
get_word(protocol, sizeof(protocol), &p); |
|
|
|
av_strlcpy(c->method, cmd, sizeof(c->method)); |
|
av_strlcpy(c->url, url, sizeof(c->url)); |
|
av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); |
|
|
|
if (avio_open_dyn_buf(&c->pb) < 0) { |
|
/* XXX: cannot do more */ |
|
c->pb = NULL; /* safety */ |
|
return -1; |
|
} |
|
|
|
/* check version name */ |
|
if (strcmp(protocol, "RTSP/1.0")) { |
|
rtsp_reply_error(c, RTSP_STATUS_VERSION); |
|
goto the_end; |
|
} |
|
|
|
/* parse each header line */ |
|
/* skip to next line */ |
|
while (*p != '\n' && *p != '\0') |
|
p++; |
|
if (*p == '\n') |
|
p++; |
|
while (*p != '\0') { |
|
p1 = memchr(p, '\n', (char *)c->buffer_ptr - p); |
|
if (!p1) |
|
break; |
|
p2 = p1; |
|
if (p2 > p && p2[-1] == '\r') |
|
p2--; |
|
/* skip empty line */ |
|
if (p2 == p) |
|
break; |
|
len = p2 - p; |
|
if (len > sizeof(line) - 1) |
|
len = sizeof(line) - 1; |
|
memcpy(line, p, len); |
|
line[len] = '\0'; |
|
ff_rtsp_parse_line(NULL, header, line, NULL, NULL); |
|
p = p1 + 1; |
|
} |
|
|
|
/* handle sequence number */ |
|
c->seq = header->seq; |
|
|
|
if (!strcmp(cmd, "DESCRIBE")) |
|
rtsp_cmd_describe(c, url); |
|
else if (!strcmp(cmd, "OPTIONS")) |
|
rtsp_cmd_options(c, url); |
|
else if (!strcmp(cmd, "SETUP")) |
|
rtsp_cmd_setup(c, url, header); |
|
else if (!strcmp(cmd, "PLAY")) |
|
rtsp_cmd_play(c, url, header); |
|
else if (!strcmp(cmd, "PAUSE")) |
|
rtsp_cmd_interrupt(c, url, header, 1); |
|
else if (!strcmp(cmd, "TEARDOWN")) |
|
rtsp_cmd_interrupt(c, url, header, 0); |
|
else |
|
rtsp_reply_error(c, RTSP_STATUS_METHOD); |
|
|
|
the_end: |
|
len = avio_close_dyn_buf(c->pb, &c->pb_buffer); |
|
c->pb = NULL; /* safety */ |
|
if (len < 0) |
|
/* XXX: cannot do more */ |
|
return -1; |
|
|
|
c->buffer_ptr = c->pb_buffer; |
|
c->buffer_end = c->pb_buffer + len; |
|
c->state = RTSPSTATE_SEND_REPLY; |
|
return 0; |
|
} |
|
|
|
static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer, |
|
struct in_addr my_ip) |
|
{ |
|
AVFormatContext *avc; |
|
AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL); |
|
AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0); |
|
int i; |
|
|
|
*pbuffer = NULL; |
|
|
|
avc = avformat_alloc_context(); |
|
if (!avc || !rtp_format) |
|
return -1; |
|
|
|
avc->oformat = rtp_format; |
|
av_dict_set(&avc->metadata, "title", |
|
entry ? entry->value : "No Title", 0); |
|
if (stream->is_multicast) { |
|
snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d", |
|
inet_ntoa(stream->multicast_ip), |
|
stream->multicast_port, stream->multicast_ttl); |
|
} else |
|
snprintf(avc->filename, 1024, "rtp://0.0.0.0"); |
|
|
|
for(i = 0; i < stream->nb_streams; i++) { |
|
AVStream *st = avformat_new_stream(avc, NULL); |
|
if (!st) |
|
goto sdp_done; |
|
avcodec_parameters_from_context(stream->streams[i]->codecpar, stream->streams[i]->codec); |
|
unlayer_stream(st, stream->streams[i]); |
|
} |
|
#define PBUFFER_SIZE 2048 |
|
*pbuffer = av_mallocz(PBUFFER_SIZE); |
|
if (!*pbuffer) |
|
goto sdp_done; |
|
av_sdp_create(&avc, 1, *pbuffer, PBUFFER_SIZE); |
|
|
|
sdp_done: |
|
av_freep(&avc->streams); |
|
av_dict_free(&avc->metadata); |
|
av_free(avc); |
|
|
|
return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM); |
|
} |
|
|
|
static void rtsp_cmd_options(HTTPContext *c, const char *url) |
|
{ |
|
/* rtsp_reply_header(c, RTSP_STATUS_OK); */ |
|
avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK"); |
|
avio_printf(c->pb, "CSeq: %d\r\n", c->seq); |
|
avio_printf(c->pb, "Public: %s\r\n", |
|
"OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE"); |
|
avio_printf(c->pb, "\r\n"); |
|
} |
|
|
|
static void rtsp_cmd_describe(HTTPContext *c, const char *url) |
|
{ |
|
FFServerStream *stream; |
|
char path1[1024]; |
|
const char *path; |
|
uint8_t *content; |
|
int content_length; |
|
socklen_t len; |
|
struct sockaddr_in my_addr; |
|
|
|
/* find which URL is asked */ |
|
av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); |
|
path = path1; |
|
if (*path == '/') |
|
path++; |
|
|
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
if (!stream->is_feed && |
|
stream->fmt && !strcmp(stream->fmt->name, "rtp") && |
|
!strcmp(path, stream->filename)) { |
|
goto found; |
|
} |
|
} |
|
/* no stream found */ |
|
rtsp_reply_error(c, RTSP_STATUS_NOT_FOUND); |
|
return; |
|
|
|
found: |
|
/* prepare the media description in SDP format */ |
|
|
|
/* get the host IP */ |
|
len = sizeof(my_addr); |
|
getsockname(c->fd, (struct sockaddr *)&my_addr, &len); |
|
content_length = prepare_sdp_description(stream, &content, |
|
my_addr.sin_addr); |
|
if (content_length < 0) { |
|
rtsp_reply_error(c, RTSP_STATUS_INTERNAL); |
|
return; |
|
} |
|
rtsp_reply_header(c, RTSP_STATUS_OK); |
|
avio_printf(c->pb, "Content-Base: %s/\r\n", url); |
|
avio_printf(c->pb, "Content-Type: application/sdp\r\n"); |
|
avio_printf(c->pb, "Content-Length: %d\r\n", content_length); |
|
avio_printf(c->pb, "\r\n"); |
|
avio_write(c->pb, content, content_length); |
|
av_free(content); |
|
} |
|
|
|
static HTTPContext *find_rtp_session(const char *session_id) |
|
{ |
|
HTTPContext *c; |
|
|
|
if (session_id[0] == '\0') |
|
return NULL; |
|
|
|
for(c = first_http_ctx; c; c = c->next) { |
|
if (!strcmp(c->session_id, session_id)) |
|
return c; |
|
} |
|
return NULL; |
|
} |
|
|
|
static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport) |
|
{ |
|
RTSPTransportField *th; |
|
int i; |
|
|
|
for(i=0;i<h->nb_transports;i++) { |
|
th = &h->transports[i]; |
|
if (th->lower_transport == lower_transport) |
|
return th; |
|
} |
|
return NULL; |
|
} |
|
|
|
static void rtsp_cmd_setup(HTTPContext *c, const char *url, |
|
RTSPMessageHeader *h) |
|
{ |
|
FFServerStream *stream; |
|
int stream_index, rtp_port, rtcp_port; |
|
char buf[1024]; |
|
char path1[1024]; |
|
const char *path; |
|
HTTPContext *rtp_c; |
|
RTSPTransportField *th; |
|
struct sockaddr_in dest_addr; |
|
RTSPActionServerSetup setup; |
|
|
|
/* find which URL is asked */ |
|
av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); |
|
path = path1; |
|
if (*path == '/') |
|
path++; |
|
|
|
/* now check each stream */ |
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
if (stream->is_feed || !stream->fmt || |
|
strcmp(stream->fmt->name, "rtp")) { |
|
continue; |
|
} |
|
/* accept aggregate filenames only if single stream */ |
|
if (!strcmp(path, stream->filename)) { |
|
if (stream->nb_streams != 1) { |
|
rtsp_reply_error(c, RTSP_STATUS_AGGREGATE); |
|
return; |
|
} |
|
stream_index = 0; |
|
goto found; |
|
} |
|
|
|
for(stream_index = 0; stream_index < stream->nb_streams; |
|
stream_index++) { |
|
snprintf(buf, sizeof(buf), "%s/streamid=%d", |
|
stream->filename, stream_index); |
|
if (!strcmp(path, buf)) |
|
goto found; |
|
} |
|
} |
|
/* no stream found */ |
|
rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ |
|
return; |
|
found: |
|
|
|
/* generate session id if needed */ |
|
if (h->session_id[0] == '\0') { |
|
unsigned random0 = av_lfg_get(&random_state); |
|
unsigned random1 = av_lfg_get(&random_state); |
|
snprintf(h->session_id, sizeof(h->session_id), "%08x%08x", |
|
random0, random1); |
|
} |
|
|
|
/* find RTP session, and create it if none found */ |
|
rtp_c = find_rtp_session(h->session_id); |
|
if (!rtp_c) { |
|
/* always prefer UDP */ |
|
th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP); |
|
if (!th) { |
|
th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP); |
|
if (!th) { |
|
rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); |
|
return; |
|
} |
|
} |
|
|
|
rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id, |
|
th->lower_transport); |
|
if (!rtp_c) { |
|
rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH); |
|
return; |
|
} |
|
|
|
/* open input stream */ |
|
if (open_input_stream(rtp_c, "") < 0) { |
|
rtsp_reply_error(c, RTSP_STATUS_INTERNAL); |
|
return; |
|
} |
|
} |
|
|
|
/* test if stream is OK (test needed because several SETUP needs |
|
* to be done for a given file) */ |
|
if (rtp_c->stream != stream) { |
|
rtsp_reply_error(c, RTSP_STATUS_SERVICE); |
|
return; |
|
} |
|
|
|
/* test if stream is already set up */ |
|
if (rtp_c->rtp_ctx[stream_index]) { |
|
rtsp_reply_error(c, RTSP_STATUS_STATE); |
|
return; |
|
} |
|
|
|
/* check transport */ |
|
th = find_transport(h, rtp_c->rtp_protocol); |
|
if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP && |
|
th->client_port_min <= 0)) { |
|
rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); |
|
return; |
|
} |
|
|
|
/* setup default options */ |
|
setup.transport_option[0] = '\0'; |
|
dest_addr = rtp_c->from_addr; |
|
dest_addr.sin_port = htons(th->client_port_min); |
|
|
|
/* setup stream */ |
|
if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) { |
|
rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); |
|
return; |
|
} |
|
|
|
/* now everything is OK, so we can send the connection parameters */ |
|
rtsp_reply_header(c, RTSP_STATUS_OK); |
|
/* session ID */ |
|
avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); |
|
|
|
switch(rtp_c->rtp_protocol) { |
|
case RTSP_LOWER_TRANSPORT_UDP: |
|
rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]); |
|
rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]); |
|
avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;" |
|
"client_port=%d-%d;server_port=%d-%d", |
|
th->client_port_min, th->client_port_max, |
|
rtp_port, rtcp_port); |
|
break; |
|
case RTSP_LOWER_TRANSPORT_TCP: |
|
avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d", |
|
stream_index * 2, stream_index * 2 + 1); |
|
break; |
|
default: |
|
break; |
|
} |
|
if (setup.transport_option[0] != '\0') |
|
avio_printf(c->pb, ";%s", setup.transport_option); |
|
avio_printf(c->pb, "\r\n"); |
|
|
|
|
|
avio_printf(c->pb, "\r\n"); |
|
} |
|
|
|
|
|
/** |
|
* find an RTP connection by using the session ID. Check consistency |
|
* with filename |
|
*/ |
|
static HTTPContext *find_rtp_session_with_url(const char *url, |
|
const char *session_id) |
|
{ |
|
HTTPContext *rtp_c; |
|
char path1[1024]; |
|
const char *path; |
|
char buf[1024]; |
|
int s, len; |
|
|
|
rtp_c = find_rtp_session(session_id); |
|
if (!rtp_c) |
|
return NULL; |
|
|
|
/* find which URL is asked */ |
|
av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); |
|
path = path1; |
|
if (*path == '/') |
|
path++; |
|
if(!strcmp(path, rtp_c->stream->filename)) return rtp_c; |
|
for(s=0; s<rtp_c->stream->nb_streams; ++s) { |
|
snprintf(buf, sizeof(buf), "%s/streamid=%d", |
|
rtp_c->stream->filename, s); |
|
if(!strncmp(path, buf, sizeof(buf))) |
|
/* XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE |
|
* if nb_streams>1? */ |
|
return rtp_c; |
|
} |
|
len = strlen(path); |
|
if (len > 0 && path[len - 1] == '/' && |
|
!strncmp(path, rtp_c->stream->filename, len - 1)) |
|
return rtp_c; |
|
return NULL; |
|
} |
|
|
|
static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h) |
|
{ |
|
HTTPContext *rtp_c; |
|
|
|
rtp_c = find_rtp_session_with_url(url, h->session_id); |
|
if (!rtp_c) { |
|
rtsp_reply_error(c, RTSP_STATUS_SESSION); |
|
return; |
|
} |
|
|
|
if (rtp_c->state != HTTPSTATE_SEND_DATA && |
|
rtp_c->state != HTTPSTATE_WAIT_FEED && |
|
rtp_c->state != HTTPSTATE_READY) { |
|
rtsp_reply_error(c, RTSP_STATUS_STATE); |
|
return; |
|
} |
|
|
|
rtp_c->state = HTTPSTATE_SEND_DATA; |
|
|
|
/* now everything is OK, so we can send the connection parameters */ |
|
rtsp_reply_header(c, RTSP_STATUS_OK); |
|
/* session ID */ |
|
avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); |
|
avio_printf(c->pb, "\r\n"); |
|
} |
|
|
|
static void rtsp_cmd_interrupt(HTTPContext *c, const char *url, |
|
RTSPMessageHeader *h, int pause_only) |
|
{ |
|
HTTPContext *rtp_c; |
|
|
|
rtp_c = find_rtp_session_with_url(url, h->session_id); |
|
if (!rtp_c) { |
|
rtsp_reply_error(c, RTSP_STATUS_SESSION); |
|
return; |
|
} |
|
|
|
if (pause_only) { |
|
if (rtp_c->state != HTTPSTATE_SEND_DATA && |
|
rtp_c->state != HTTPSTATE_WAIT_FEED) { |
|
rtsp_reply_error(c, RTSP_STATUS_STATE); |
|
return; |
|
} |
|
rtp_c->state = HTTPSTATE_READY; |
|
rtp_c->first_pts = AV_NOPTS_VALUE; |
|
} |
|
|
|
/* now everything is OK, so we can send the connection parameters */ |
|
rtsp_reply_header(c, RTSP_STATUS_OK); |
|
/* session ID */ |
|
avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); |
|
avio_printf(c->pb, "\r\n"); |
|
|
|
if (!pause_only) |
|
close_connection(rtp_c); |
|
} |
|
|
|
/********************************************************************/ |
|
/* RTP handling */ |
|
|
|
static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, |
|
FFServerStream *stream, |
|
const char *session_id, |
|
enum RTSPLowerTransport rtp_protocol) |
|
{ |
|
HTTPContext *c = NULL; |
|
const char *proto_str; |
|
|
|
/* XXX: should output a warning page when coming |
|
* close to the connection limit */ |
|
if (nb_connections >= config.nb_max_connections) |
|
goto fail; |
|
|
|
/* add a new connection */ |
|
c = av_mallocz(sizeof(HTTPContext)); |
|
if (!c) |
|
goto fail; |
|
|
|
c->fd = -1; |
|
c->poll_entry = NULL; |
|
c->from_addr = *from_addr; |
|
c->buffer_size = IOBUFFER_INIT_SIZE; |
|
c->buffer = av_malloc(c->buffer_size); |
|
if (!c->buffer) |
|
goto fail; |
|
nb_connections++; |
|
c->stream = stream; |
|
av_strlcpy(c->session_id, session_id, sizeof(c->session_id)); |
|
c->state = HTTPSTATE_READY; |
|
c->is_packetized = 1; |
|
c->rtp_protocol = rtp_protocol; |
|
|
|
/* protocol is shown in statistics */ |
|
switch(c->rtp_protocol) { |
|
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: |
|
proto_str = "MCAST"; |
|
break; |
|
case RTSP_LOWER_TRANSPORT_UDP: |
|
proto_str = "UDP"; |
|
break; |
|
case RTSP_LOWER_TRANSPORT_TCP: |
|
proto_str = "TCP"; |
|
break; |
|
default: |
|
proto_str = "???"; |
|
break; |
|
} |
|
av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol)); |
|
av_strlcat(c->protocol, proto_str, sizeof(c->protocol)); |
|
|
|
current_bandwidth += stream->bandwidth; |
|
|
|
c->next = first_http_ctx; |
|
first_http_ctx = c; |
|
return c; |
|
|
|
fail: |
|
if (c) { |
|
av_freep(&c->buffer); |
|
av_free(c); |
|
} |
|
return NULL; |
|
} |
|
|
|
/** |
|
* add a new RTP stream in an RTP connection (used in RTSP SETUP |
|
* command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is |
|
* used. |
|
*/ |
|
static int rtp_new_av_stream(HTTPContext *c, |
|
int stream_index, struct sockaddr_in *dest_addr, |
|
HTTPContext *rtsp_c) |
|
{ |
|
AVFormatContext *ctx; |
|
AVStream *st; |
|
char *ipaddr; |
|
URLContext *h = NULL; |
|
uint8_t *dummy_buf; |
|
int max_packet_size; |
|
void *st_internal; |
|
|
|
/* now we can open the relevant output stream */ |
|
ctx = avformat_alloc_context(); |
|
if (!ctx) |
|
return -1; |
|
ctx->oformat = av_guess_format("rtp", NULL, NULL); |
|
|
|
st = avformat_new_stream(ctx, NULL); |
|
if (!st) |
|
goto fail; |
|
|
|
st_internal = st->internal; |
|
|
|
if (!c->stream->feed || |
|
c->stream->feed == c->stream) |
|
unlayer_stream(st, c->stream->streams[stream_index]); |
|
else |
|
unlayer_stream(st, |
|
c->stream->feed->streams[c->stream->feed_streams[stream_index]]); |
|
av_assert0(st->priv_data == NULL); |
|
av_assert0(st->internal == st_internal); |
|
|
|
/* build destination RTP address */ |
|
ipaddr = inet_ntoa(dest_addr->sin_addr); |
|
|
|
switch(c->rtp_protocol) { |
|
case RTSP_LOWER_TRANSPORT_UDP: |
|
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: |
|
/* RTP/UDP case */ |
|
|
|
/* XXX: also pass as parameter to function ? */ |
|
if (c->stream->is_multicast) { |
|
int ttl; |
|
ttl = c->stream->multicast_ttl; |
|
if (!ttl) |
|
ttl = 16; |
|
snprintf(ctx->filename, sizeof(ctx->filename), |
|
"rtp://%s:%d?multicast=1&ttl=%d", |
|
ipaddr, ntohs(dest_addr->sin_port), ttl); |
|
} else { |
|
snprintf(ctx->filename, sizeof(ctx->filename), |
|
"rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port)); |
|
} |
|
|
|
if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0) |
|
goto fail; |
|
c->rtp_handles[stream_index] = h; |
|
max_packet_size = h->max_packet_size; |
|
break; |
|
case RTSP_LOWER_TRANSPORT_TCP: |
|
/* RTP/TCP case */ |
|
c->rtsp_c = rtsp_c; |
|
max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; |
|
break; |
|
default: |
|
goto fail; |
|
} |
|
|
|
http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n", |
|
ipaddr, ntohs(dest_addr->sin_port), |
|
c->stream->filename, stream_index, c->protocol); |
|
|
|
/* normally, no packets should be output here, but the packet size may |
|
* be checked */ |
|
if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) |
|
/* XXX: close stream */ |
|
goto fail; |
|
|
|
if (avformat_write_header(ctx, NULL) < 0) { |
|
fail: |
|
if (h) |
|
ffurl_close(h); |
|
av_free(st); |
|
av_free(ctx); |
|
return -1; |
|
} |
|
avio_close_dyn_buf(ctx->pb, &dummy_buf); |
|
ctx->pb = NULL; |
|
av_free(dummy_buf); |
|
|
|
c->rtp_ctx[stream_index] = ctx; |
|
return 0; |
|
} |
|
|
|
/********************************************************************/ |
|
/* ffserver initialization */ |
|
|
|
/* FIXME: This code should use avformat_new_stream() */ |
|
static LayeredAVStream *add_av_stream1(FFServerStream *stream, |
|
AVCodecContext *codec, int copy) |
|
{ |
|
LayeredAVStream *fst; |
|
|
|
if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams)) |
|
return NULL; |
|
|
|
fst = av_mallocz(sizeof(*fst)); |
|
if (!fst) |
|
return NULL; |
|
if (copy) { |
|
fst->codec = avcodec_alloc_context3(codec->codec); |
|
if (!fst->codec) { |
|
av_free(fst); |
|
return NULL; |
|
} |
|
avcodec_copy_context(fst->codec, codec); |
|
} else |
|
/* live streams must use the actual feed's codec since it may be |
|
* updated later to carry extradata needed by them. |
|
*/ |
|
fst->codec = codec; |
|
|
|
//NOTE we previously allocated internal & internal->avctx, these seemed uneeded though |
|
fst->codecpar = avcodec_parameters_alloc(); |
|
fst->index = stream->nb_streams; |
|
fst->time_base = codec->time_base; |
|
fst->pts_wrap_bits = 33; |
|
fst->sample_aspect_ratio = codec->sample_aspect_ratio; |
|
stream->streams[stream->nb_streams++] = fst; |
|
return fst; |
|
} |
|
|
|
/* return the stream number in the feed */ |
|
static int add_av_stream(FFServerStream *feed, LayeredAVStream *st) |
|
{ |
|
LayeredAVStream *fst; |
|
AVCodecContext *av, *av1; |
|
int i; |
|
|
|
av = st->codec; |
|
for(i=0;i<feed->nb_streams;i++) { |
|
av1 = feed->streams[i]->codec; |
|
if (av1->codec_id == av->codec_id && |
|
av1->codec_type == av->codec_type && |
|
av1->bit_rate == av->bit_rate) { |
|
|
|
switch(av->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
if (av1->channels == av->channels && |
|
av1->sample_rate == av->sample_rate) |
|
return i; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
if (av1->width == av->width && |
|
av1->height == av->height && |
|
av1->time_base.den == av->time_base.den && |
|
av1->time_base.num == av->time_base.num && |
|
av1->gop_size == av->gop_size) |
|
return i; |
|
break; |
|
default: |
|
abort(); |
|
} |
|
} |
|
} |
|
|
|
fst = add_av_stream1(feed, av, 0); |
|
if (!fst) |
|
return -1; |
|
if (st->recommended_encoder_configuration) |
|
fst->recommended_encoder_configuration = |
|
av_strdup(st->recommended_encoder_configuration); |
|
return feed->nb_streams - 1; |
|
} |
|
|
|
static void remove_stream(FFServerStream *stream) |
|
{ |
|
FFServerStream **ps; |
|
ps = &config.first_stream; |
|
while (*ps) { |
|
if (*ps == stream) |
|
*ps = (*ps)->next; |
|
else |
|
ps = &(*ps)->next; |
|
} |
|
} |
|
|
|
/* compute the needed AVStream for each file */ |
|
static void build_file_streams(void) |
|
{ |
|
FFServerStream *stream; |
|
AVFormatContext *infile; |
|
int i, ret; |
|
|
|
/* gather all streams */ |
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
infile = NULL; |
|
|
|
if (stream->stream_type != STREAM_TYPE_LIVE || stream->feed) |
|
continue; |
|
|
|
/* the stream comes from a file */ |
|
/* try to open the file */ |
|
/* open stream */ |
|
|
|
|
|
/* specific case: if transport stream output to RTP, |
|
* we use a raw transport stream reader */ |
|
if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) |
|
av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0); |
|
|
|
if (!stream->feed_filename[0]) { |
|
http_log("Unspecified feed file for stream '%s'\n", |
|
stream->filename); |
|
goto fail; |
|
} |
|
|
|
http_log("Opening feed file '%s' for stream '%s'\n", |
|
stream->feed_filename, stream->filename); |
|
|
|
ret = avformat_open_input(&infile, stream->feed_filename, |
|
stream->ifmt, &stream->in_opts); |
|
if (ret < 0) { |
|
http_log("Could not open '%s': %s\n", stream->feed_filename, |
|
av_err2str(ret)); |
|
/* remove stream (no need to spend more time on it) */ |
|
fail: |
|
remove_stream(stream); |
|
} else { |
|
/* find all the AVStreams inside and reference them in |
|
* 'stream' */ |
|
if (avformat_find_stream_info(infile, NULL) < 0) { |
|
http_log("Could not find codec parameters from '%s'\n", |
|
stream->feed_filename); |
|
avformat_close_input(&infile); |
|
goto fail; |
|
} |
|
|
|
for(i=0;i<infile->nb_streams;i++) |
|
add_av_stream1(stream, infile->streams[i]->codec, 1); |
|
|
|
avformat_close_input(&infile); |
|
} |
|
} |
|
} |
|
|
|
static inline |
|
int check_codec_match(LayeredAVStream *ccf, AVStream *ccs, int stream) |
|
{ |
|
int matches = 1; |
|
|
|
/* FIXME: Missed check on AVCodecContext.flags */ |
|
#define CHECK_CODEC(x) (ccf->codecpar->x != ccs->codecpar->x) |
|
if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) { |
|
http_log("Codecs do not match for stream %d\n", stream); |
|
matches = 0; |
|
} else if (CHECK_CODEC(bit_rate)) { |
|
http_log("Codec bitrates do not match for stream %d\n", stream); |
|
matches = 0; |
|
} else if (ccf->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { |
|
if (av_cmp_q(ccf->time_base, ccs->time_base) || |
|
CHECK_CODEC(width) || CHECK_CODEC(height)) { |
|
http_log("Codec width, height or framerate do not match for stream %d\n", stream); |
|
matches = 0; |
|
} |
|
} else if (ccf->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) { |
|
if (CHECK_CODEC(sample_rate) || |
|
CHECK_CODEC(channels) || |
|
CHECK_CODEC(frame_size)) { |
|
http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", stream); |
|
matches = 0; |
|
} |
|
} else { |
|
http_log("Unknown codec type for stream %d\n", stream); |
|
matches = 0; |
|
} |
|
|
|
return matches; |
|
} |
|
|
|
/* compute the needed AVStream for each feed */ |
|
static int build_feed_streams(void) |
|
{ |
|
FFServerStream *stream, *feed; |
|
int i, fd; |
|
|
|
/* gather all streams */ |
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
feed = stream->feed; |
|
if (!feed) |
|
continue; |
|
|
|
if (stream->is_feed) { |
|
for(i=0;i<stream->nb_streams;i++) |
|
stream->feed_streams[i] = i; |
|
continue; |
|
} |
|
/* we handle a stream coming from a feed */ |
|
for(i=0;i<stream->nb_streams;i++) |
|
stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]); |
|
} |
|
|
|
/* create feed files if needed */ |
|
for(feed = config.first_feed; feed; feed = feed->next_feed) { |
|
|
|
if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) { |
|
AVFormatContext *s = NULL; |
|
int matches = 0; |
|
|
|
/* See if it matches */ |
|
|
|
if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) < 0) { |
|
http_log("Deleting feed file '%s' as it appears " |
|
"to be corrupt\n", |
|
feed->feed_filename); |
|
goto drop; |
|
} |
|
|
|
/* set buffer size */ |
|
if (ffio_set_buf_size(s->pb, FFM_PACKET_SIZE) < 0) { |
|
http_log("Failed to set buffer size\n"); |
|
avformat_close_input(&s); |
|
goto bail; |
|
} |
|
|
|
/* Now see if it matches */ |
|
if (s->nb_streams != feed->nb_streams) { |
|
http_log("Deleting feed file '%s' as stream counts " |
|
"differ (%d != %d)\n", |
|
feed->feed_filename, s->nb_streams, feed->nb_streams); |
|
goto drop; |
|
} |
|
|
|
matches = 1; |
|
for(i=0;i<s->nb_streams;i++) { |
|
AVStream *ss; |
|
LayeredAVStream *sf; |
|
|
|
sf = feed->streams[i]; |
|
ss = s->streams[i]; |
|
|
|
if (sf->index != ss->index || sf->id != ss->id) { |
|
http_log("Index & Id do not match for stream %d (%s)\n", |
|
i, feed->feed_filename); |
|
matches = 0; |
|
break; |
|
} |
|
|
|
matches = check_codec_match (sf, ss, i); |
|
if (!matches) |
|
break; |
|
} |
|
|
|
drop: |
|
if (s) |
|
avformat_close_input(&s); |
|
|
|
if (!matches) { |
|
if (feed->readonly) { |
|
http_log("Unable to delete read-only feed file '%s'\n", |
|
feed->feed_filename); |
|
goto bail; |
|
} |
|
unlink(feed->feed_filename); |
|
} |
|
} |
|
|
|
if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) { |
|
AVFormatContext *s = avformat_alloc_context(); |
|
|
|
if (!s) { |
|
http_log("Failed to allocate context\n"); |
|
goto bail; |
|
} |
|
|
|
if (feed->readonly) { |
|
http_log("Unable to create feed file '%s' as it is " |
|
"marked readonly\n", |
|
feed->feed_filename); |
|
avformat_free_context(s); |
|
goto bail; |
|
} |
|
|
|
/* only write the header of the ffm file */ |
|
if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) { |
|
http_log("Could not open output feed file '%s'\n", |
|
feed->feed_filename); |
|
avformat_free_context(s); |
|
goto bail; |
|
} |
|
s->oformat = feed->fmt; |
|
for (i = 0; i<feed->nb_streams; i++) { |
|
AVStream *st = avformat_new_stream(s, NULL); // FIXME free this |
|
if (!st) { |
|
http_log("Failed to allocate stream\n"); |
|
goto bail; |
|
} |
|
unlayer_stream(st, feed->streams[i]); |
|
} |
|
if (avformat_write_header(s, NULL) < 0) { |
|
http_log("Container doesn't support the required parameters\n"); |
|
avio_closep(&s->pb); |
|
s->streams = NULL; |
|
s->nb_streams = 0; |
|
avformat_free_context(s); |
|
goto bail; |
|
} |
|
/* XXX: need better API */ |
|
av_freep(&s->priv_data); |
|
avio_closep(&s->pb); |
|
s->streams = NULL; |
|
s->nb_streams = 0; |
|
avformat_free_context(s); |
|
} |
|
|
|
/* get feed size and write index */ |
|
fd = open(feed->feed_filename, O_RDONLY); |
|
if (fd < 0) { |
|
http_log("Could not open output feed file '%s'\n", |
|
feed->feed_filename); |
|
goto bail; |
|
} |
|
|
|
feed->feed_write_index = FFMAX(ffm_read_write_index(fd), |
|
FFM_PACKET_SIZE); |
|
feed->feed_size = lseek(fd, 0, SEEK_END); |
|
/* ensure that we do not wrap before the end of file */ |
|
if (feed->feed_max_size && feed->feed_max_size < feed->feed_size) |
|
feed->feed_max_size = feed->feed_size; |
|
|
|
close(fd); |
|
} |
|
return 0; |
|
|
|
bail: |
|
return -1; |
|
} |
|
|
|
/* compute the bandwidth used by each stream */ |
|
static void compute_bandwidth(void) |
|
{ |
|
unsigned bandwidth; |
|
int i; |
|
FFServerStream *stream; |
|
|
|
for(stream = config.first_stream; stream; stream = stream->next) { |
|
bandwidth = 0; |
|
for(i=0;i<stream->nb_streams;i++) { |
|
LayeredAVStream *st = stream->streams[i]; |
|
switch(st->codec->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
case AVMEDIA_TYPE_VIDEO: |
|
bandwidth += st->codec->bit_rate; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
stream->bandwidth = (bandwidth + 999) / 1000; |
|
} |
|
} |
|
|
|
static void handle_child_exit(int sig) |
|
{ |
|
pid_t pid; |
|
int status; |
|
time_t uptime; |
|
|
|
while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
|
FFServerStream *feed; |
|
|
|
for (feed = config.first_feed; feed; feed = feed->next) { |
|
if (feed->pid != pid) |
|
continue; |
|
|
|
uptime = time(0) - feed->pid_start; |
|
feed->pid = 0; |
|
fprintf(stderr, |
|
"%s: Pid %"PRId64" exited with status %d after %"PRId64" " |
|
"seconds\n", |
|
feed->filename, (int64_t) pid, status, (int64_t)uptime); |
|
|
|
if (uptime < 30) |
|
/* Turn off any more restarts */ |
|
ffserver_free_child_args(&feed->child_argv); |
|
} |
|
} |
|
|
|
need_to_start_children = 1; |
|
} |
|
|
|
static void opt_debug(void) |
|
{ |
|
config.debug = 1; |
|
snprintf(config.logfilename, sizeof(config.logfilename), "-"); |
|
} |
|
|
|
void show_help_default(const char *opt, const char *arg) |
|
{ |
|
printf("usage: ffserver [options]\n" |
|
"Hyper fast multi format Audio/Video streaming server\n"); |
|
printf("\n"); |
|
show_help_options(options, "Main options:", 0, 0, 0); |
|
} |
|
|
|
static const OptionDef options[] = { |
|
CMDUTILS_COMMON_OPTIONS |
|
{ "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" }, |
|
{ "d", 0, {(void*)opt_debug}, "enable debug mode" }, |
|
{ "f", HAS_ARG | OPT_STRING, {(void*)&config.filename }, "use configfile instead of /etc/ffserver.conf", "configfile" }, |
|
{ NULL }, |
|
}; |
|
|
|
int main(int argc, char **argv) |
|
{ |
|
struct sigaction sigact = { { 0 } }; |
|
int cfg_parsed; |
|
int ret = EXIT_FAILURE; |
|
|
|
init_dynload(); |
|
|
|
config.filename = av_strdup("/etc/ffserver.conf"); |
|
|
|
parse_loglevel(argc, argv, options); |
|
av_register_all(); |
|
avformat_network_init(); |
|
|
|
show_banner(argc, argv, options); |
|
|
|
my_program_name = argv[0]; |
|
|
|
parse_options(NULL, argc, argv, options, NULL); |
|
|
|
unsetenv("http_proxy"); /* Kill the http_proxy */ |
|
|
|
av_lfg_init(&random_state, av_get_random_seed()); |
|
|
|
sigact.sa_handler = handle_child_exit; |
|
sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART; |
|
sigaction(SIGCHLD, &sigact, 0); |
|
|
|
if ((cfg_parsed = ffserver_parse_ffconfig(config.filename, &config)) < 0) { |
|
fprintf(stderr, "Error reading configuration file '%s': %s\n", |
|
config.filename, av_err2str(cfg_parsed)); |
|
goto bail; |
|
} |
|
|
|
/* open log file if needed */ |
|
if (config.logfilename[0] != '\0') { |
|
if (!strcmp(config.logfilename, "-")) |
|
logfile = stdout; |
|
else |
|
logfile = fopen(config.logfilename, "a"); |
|
av_log_set_callback(http_av_log); |
|
} |
|
|
|
build_file_streams(); |
|
|
|
if (build_feed_streams() < 0) { |
|
http_log("Could not setup feed streams\n"); |
|
goto bail; |
|
} |
|
|
|
compute_bandwidth(); |
|
|
|
/* signal init */ |
|
signal(SIGPIPE, SIG_IGN); |
|
|
|
if (http_server() < 0) { |
|
http_log("Could not start server\n"); |
|
goto bail; |
|
} |
|
|
|
ret=EXIT_SUCCESS; |
|
|
|
bail: |
|
av_freep (&config.filename); |
|
avformat_network_deinit(); |
|
return ret; |
|
}
|
|
|