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118 lines
4.6 KiB
118 lines
4.6 KiB
/* |
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* copyright (c) 2001 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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#ifndef AVFORMAT_INTERNAL_H |
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#define AVFORMAT_INTERNAL_H |
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#include <stdint.h> |
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#include "avformat.h" |
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char *ff_data_to_hex(char *buf, const uint8_t *src, int size); |
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void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx); |
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/** |
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* Add packet to AVFormatContext->packet_buffer list, determining its |
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* interleaved position using compare() function argument. |
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*/ |
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void ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt, |
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int (*compare)(AVFormatContext *, AVPacket *, AVPacket *)); |
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void ff_read_frame_flush(AVFormatContext *s); |
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#define NTP_OFFSET 2208988800ULL |
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#define NTP_OFFSET_US (NTP_OFFSET * 1000000ULL) |
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/** Gets the current time since NTP epoch in microseconds. */ |
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uint64_t ff_ntp_time(void); |
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/** |
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* Probes a bytestream to determine the input format. Each time a probe returns |
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* with a score that is too low, the probe buffer size is increased and another |
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* attempt is made. When the maximum probe size is reached, the input format |
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* with the highest score is returned. |
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* |
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* @param pb the bytestream to probe, it may be closed and opened again |
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* @param fmt the input format is put here |
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* @param filename the filename of the stream |
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* @param logctx the log context |
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* @param offset the offset within the bytestream to probe from |
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* @param max_probe_size the maximum probe buffer size (zero for default) |
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* @return 0 in case of success, a negative value corresponding to an |
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* AVERROR code otherwise |
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*/ |
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int ff_probe_input_buffer(ByteIOContext **pb, AVInputFormat **fmt, |
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const char *filename, void *logctx, |
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unsigned int offset, unsigned int max_probe_size); |
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/** |
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* Splits a URL string into components. To reassemble components back into |
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* a URL, use ff_url_join instead of using snprintf directly. |
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* |
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* The pointers to buffers for storing individual components may be null, |
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* in order to ignore that component. Buffers for components not found are |
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* set to empty strings. If the port isn't found, it is set to a negative |
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* value. |
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* |
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* @see ff_url_join |
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* |
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* @param proto the buffer for the protocol |
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* @param proto_size the size of the proto buffer |
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* @param authorization the buffer for the authorization |
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* @param authorization_size the size of the authorization buffer |
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* @param hostname the buffer for the host name |
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* @param hostname_size the size of the hostname buffer |
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* @param port_ptr a pointer to store the port number in |
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* @param path the buffer for the path |
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* @param path_size the size of the path buffer |
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* @param url the URL to split |
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*/ |
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void ff_url_split(char *proto, int proto_size, |
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char *authorization, int authorization_size, |
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char *hostname, int hostname_size, |
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int *port_ptr, |
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char *path, int path_size, |
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const char *url); |
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/** |
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* Assembles a URL string from components. This is the reverse operation |
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* of ff_url_split. |
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* |
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* Note, this requires networking to be initialized, so the caller must |
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* ensure ff_network_init has been called. |
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* |
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* @see ff_url_split |
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* |
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* @param str the buffer to fill with the url |
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* @param size the size of the str buffer |
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* @param proto the protocol identifier, if null, the separator |
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* after the identifier is left out, too |
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* @param authorization an optional authorization string, may be null |
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* @param hostname the host name string |
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* @param port the port number, left out from the string if negative |
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* @param fmt a generic format string for everything to add after the |
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* host/port, may be null |
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* @return the number of characters written to the destination buffer |
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*/ |
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int ff_url_join(char *str, int size, const char *proto, |
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const char *authorization, const char *hostname, |
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int port, const char *fmt, ...); |
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#endif /* AVFORMAT_INTERNAL_H */
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