gstreamer/ext/ffmpeg/gstffmpeg.c
Edward Hervey cc9a75adcb ext/ffmpeg/: Protect calls to ffmpeg functions that will implicitly call avcodec_open/close with the avcodec mutex.
Original commit message from CVS:
* ext/ffmpeg/gstffmpeg.c: (gst_ffmpeg_av_find_stream_info):
* ext/ffmpeg/gstffmpeg.h:
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_open):
Protect calls to ffmpeg functions that will implicitly call
avcodec_open/close with the avcodec mutex.
Fixes #433245
2007-05-09 15:30:51 +00:00

148 lines
3.5 KiB
C

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* First, include the header file for the plugin, to bring in the
* object definition and other useful things.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#ifdef HAVE_FFMPEG_UNINSTALLED
#include <avcodec.h>
#include <avformat.h>
#else
#include <ffmpeg/avcodec.h>
#include <ffmpeg/avformat.h>
#endif
#include "gstffmpeg.h"
#include "gstffmpegcodecmap.h"
GST_DEBUG_CATEGORY (ffmpeg_debug);
static GStaticMutex gst_avcodec_mutex = G_STATIC_MUTEX_INIT;
int
gst_ffmpeg_avcodec_open (AVCodecContext *avctx, AVCodec *codec) {
int ret;
g_static_mutex_lock (&gst_avcodec_mutex);
ret = avcodec_open (avctx, codec);
g_static_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
int
gst_ffmpeg_avcodec_close (AVCodecContext *avctx) {
int ret;
g_static_mutex_lock (&gst_avcodec_mutex);
ret = avcodec_close (avctx);
g_static_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
int
gst_ffmpeg_av_find_stream_info(AVFormatContext *ic) {
int ret;
g_static_mutex_lock (&gst_avcodec_mutex);
ret = av_find_stream_info (ic);
g_static_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
#ifndef GST_DISABLE_GST_DEBUG
static void
gst_ffmpeg_log_callback (void * ptr, int level, const char * fmt, va_list vl)
{
GstDebugLevel gst_level;
if (_shut_up_I_am_probing)
return;
switch (level) {
case AV_LOG_QUIET:
gst_level = GST_LEVEL_NONE;
break;
case AV_LOG_ERROR:
gst_level = GST_LEVEL_ERROR;
break;
case AV_LOG_INFO:
gst_level = GST_LEVEL_INFO;
break;
case AV_LOG_DEBUG:
gst_level = GST_LEVEL_DEBUG;
break;
default:
gst_level = GST_LEVEL_INFO;
break;
}
gst_debug_log_valist (ffmpeg_debug, gst_level, "", "", 0, NULL, fmt, vl);
}
#endif
#ifndef GST_DISABLE_GST_DEBUG
gboolean _shut_up_I_am_probing = FALSE;
#endif
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (ffmpeg_debug, "ffmpeg", 0, "FFmpeg elements");
#ifndef GST_DISABLE_GST_DEBUG
av_log_set_callback (gst_ffmpeg_log_callback);
#endif
gst_ffmpeg_init_pix_fmt_info();
av_register_all ();
gst_ffmpegenc_register (plugin);
gst_ffmpegdec_register (plugin);
gst_ffmpegdemux_register (plugin);
gst_ffmpegmux_register (plugin);
gst_ffmpegdeinterlace_register (plugin);
gst_ffmpegscale_register (plugin);
#if 0
gst_ffmpegcsp_register (plugin);
#endif
register_protocol (&gstreamer_protocol);
/* Now we can return the pointer to the newly created Plugin object. */
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"ffmpeg",
"All FFMPEG codecs (" FFMPEG_SOURCE ")",
plugin_init,
PACKAGE_VERSION, "LGPL", "FFMpeg", "http://ffmpeg.sourceforge.net/")