mirror of https://github.com/FFmpeg/FFmpeg.git
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>pull/77/head
Lukasz Marek
11 years ago
committed by
Michael Niedermayer
parent
ccc4324c90
commit
4cc0f79a2c
8 changed files with 249 additions and 1 deletions
@ -0,0 +1,207 @@ |
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/*
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* Copyright (c) 2014 Lukasz Marek <lukasz.m.luki@gmail.com> |
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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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#include <libsmbclient.h> |
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#include "libavutil/avstring.h" |
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#include "libavutil/opt.h" |
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#include "avformat.h" |
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#include "internal.h" |
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#include "url.h" |
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typedef struct { |
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const AVClass *class; |
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SMBCCTX *ctx; |
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int fd; |
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int64_t filesize; |
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int trunc; |
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int timeout; |
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char *workgroup; |
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} LIBSMBContext; |
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static void libsmbc_get_auth_data(SMBCCTX *c, const char *server, const char *share, |
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char *workgroup, int workgroup_len, |
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char *username, int username_len, |
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char *password, int password_len) |
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{ |
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/* Do nothing yet. Credentials are passed via url.
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* Callback must exists, there might be a segmentation fault otherwise. */ |
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} |
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static av_cold int libsmbc_connect(URLContext *h) |
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{ |
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LIBSMBContext *libsmbc = h->priv_data; |
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libsmbc->ctx = smbc_new_context(); |
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if (!libsmbc->ctx) { |
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av_log(h, AV_LOG_ERROR, "Cannot create context: %s.\n", strerror(errno)); |
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return AVERROR(errno); |
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} |
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if (!smbc_init_context(libsmbc->ctx)) { |
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av_log(h, AV_LOG_ERROR, "Cannot initialize context: %s.\n", strerror(errno)); |
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return AVERROR(errno); |
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} |
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smbc_set_context(libsmbc->ctx); |
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smbc_setOptionUserData(libsmbc->ctx, h); |
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smbc_setFunctionAuthDataWithContext(libsmbc->ctx, libsmbc_get_auth_data); |
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if (libsmbc->timeout != -1) |
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smbc_setTimeout(libsmbc->ctx, libsmbc->timeout); |
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if (libsmbc->workgroup) |
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smbc_setWorkgroup(libsmbc->ctx, libsmbc->workgroup); |
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if (smbc_init(NULL, 0) < 0) { |
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av_log(h, AV_LOG_ERROR, "Initialization failed: %s\n", strerror(errno)); |
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return AVERROR(errno); |
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} |
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return 0; |
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} |
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static av_cold int libsmbc_close(URLContext *h) |
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{ |
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LIBSMBContext *libsmbc = h->priv_data; |
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if (libsmbc->fd >= 0) { |
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smbc_close(libsmbc->fd); |
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libsmbc->fd = -1; |
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} |
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if (libsmbc->ctx) { |
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smbc_free_context(libsmbc->ctx, 1); |
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libsmbc->ctx = NULL; |
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} |
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return 0; |
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} |
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static av_cold int libsmbc_open(URLContext *h, const char *url, int flags) |
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{ |
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LIBSMBContext *libsmbc = h->priv_data; |
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int access, ret; |
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struct stat st; |
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libsmbc->fd = -1; |
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libsmbc->filesize = -1; |
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if ((ret = libsmbc_connect(h)) < 0) |
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goto fail; |
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if ((flags & AVIO_FLAG_WRITE) && (flags & AVIO_FLAG_READ)) { |
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access = O_CREAT | O_RDWR; |
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if (libsmbc->trunc) |
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access |= O_TRUNC; |
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} else if (flags & AVIO_FLAG_WRITE) { |
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access = O_CREAT | O_WRONLY; |
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if (libsmbc->trunc) |
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access |= O_TRUNC; |
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} else |
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access = O_RDONLY; |
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/* 0666 = -rw-rw-rw- = read+write for everyone, minus umask */ |
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if ((libsmbc->fd = smbc_open(url, access, 0666)) < 0) { |
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ret = AVERROR(errno); |
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av_log(h, AV_LOG_ERROR, "File open failed: %s\n", strerror(errno)); |
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goto fail; |
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} |
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if (smbc_fstat(libsmbc->fd, &st) < 0) |
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av_log(h, AV_LOG_WARNING, "Cannot stat file: %s\n", strerror(errno)); |
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else |
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libsmbc->filesize = st.st_size; |
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return 0; |
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fail: |
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libsmbc_close(h); |
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return ret; |
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} |
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static int64_t libsmbc_seek(URLContext *h, int64_t pos, int whence) |
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{ |
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LIBSMBContext *libsmbc = h->priv_data; |
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int64_t newpos; |
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if (whence == AVSEEK_SIZE) { |
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if (libsmbc->filesize == -1) { |
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av_log(h, AV_LOG_ERROR, "Error during seeking: filesize is unknown.\n"); |
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return AVERROR(EIO); |
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} else |
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return libsmbc->filesize; |
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} |
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if ((newpos = smbc_lseek(libsmbc->fd, pos, whence)) < 0) { |
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int err = errno; |
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av_log(h, AV_LOG_ERROR, "Error during seeking: %s\n", strerror(err)); |
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return AVERROR(err); |
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} |
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return newpos; |
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} |
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static int libsmbc_read(URLContext *h, unsigned char *buf, int size) |
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{ |
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LIBSMBContext *libsmbc = h->priv_data; |
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int bytes_read; |
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if ((bytes_read = smbc_read(libsmbc->fd, buf, size)) < 0) { |
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av_log(h, AV_LOG_ERROR, "Read error: %s\n", strerror(errno)); |
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return AVERROR(errno); |
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} |
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return bytes_read; |
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} |
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static int libsmbc_write(URLContext *h, const unsigned char *buf, int size) |
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{ |
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LIBSMBContext *libsmbc = h->priv_data; |
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int bytes_written; |
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if ((bytes_written = smbc_write(libsmbc->fd, buf, size)) < 0) { |
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av_log(h, AV_LOG_ERROR, "Write error: %s\n", strerror(errno)); |
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return AVERROR(errno); |
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} |
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return bytes_written; |
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} |
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#define OFFSET(x) offsetof(LIBSMBContext, x) |
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#define D AV_OPT_FLAG_DECODING_PARAM |
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#define E AV_OPT_FLAG_ENCODING_PARAM |
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static const AVOption options[] = { |
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{"timeout", "set timeout in ms of socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, D|E }, |
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{"truncate", "truncate existing files on write", OFFSET(trunc), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, E }, |
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{"workgroup", "set the workgroup used for making connections", OFFSET(workgroup), AV_OPT_TYPE_STRING, { 0 }, 0, 0, D|E }, |
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{NULL} |
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}; |
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static const AVClass libsmbclient_context_class = { |
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.class_name = "libsmbc", |
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.item_name = av_default_item_name, |
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.option = options, |
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.version = LIBAVUTIL_VERSION_INT, |
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}; |
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URLProtocol ff_libsmbclient_protocol = { |
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.name = "smb", |
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.url_open = libsmbc_open, |
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.url_read = libsmbc_read, |
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.url_write = libsmbc_write, |
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.url_seek = libsmbc_seek, |
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.url_close = libsmbc_close, |
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.priv_data_size = sizeof(LIBSMBContext), |
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.priv_data_class = &libsmbclient_context_class, |
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.flags = URL_PROTOCOL_FLAG_NETWORK, |
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}; |
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