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/* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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 <stdio.h>
#include <string.h>
#include <gst/gst.h>
#include "gstav.h"
#include "gstavutils.h"
#include "gstavcfg.h"
#ifdef GST_LIBAV_ENABLE_GPL
#define LICENSE "GPL"
#else
#define LICENSE "LGPL"
#endif
GST_DEBUG_CATEGORY (ffmpeg_debug);
static GMutex gst_avcodec_mutex;
/*
* Check for FFmpeg-provided libavcodec/format
*/
static inline gboolean
gst_ffmpeg_avcodec_is_ffmpeg (void)
{
guint av_version = avcodec_version ();
GST_DEBUG ("Using libavcodec version %d.%d.%d",
av_version >> 16, (av_version & 0x00ff00) >> 8, av_version & 0xff);
/* FFmpeg *_MICRO versions start at 100 and Libav's at 0 */
if ((av_version & 0xff) < 100)
return FALSE;
return TRUE;
}
int
gst_ffmpeg_avcodec_open (AVCodecContext * avctx, AVCodec * codec)
{
int ret;
g_mutex_lock (&gst_avcodec_mutex);
ret = avcodec_open2 (avctx, codec, NULL);
g_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
int
gst_ffmpeg_avcodec_close (AVCodecContext * avctx)
{
int ret;
g_mutex_lock (&gst_avcodec_mutex);
ret = avcodec_close (avctx);
g_mutex_unlock (&gst_avcodec_mutex);
return ret;
}
int
gst_ffmpeg_av_find_stream_info (AVFormatContext * ic)
{
int ret;
g_mutex_lock (&gst_avcodec_mutex);
ret = avformat_find_stream_info (ic, NULL);
g_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;
gint len = strlen (fmt);
gchar *fmt2 = NULL;
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;
}
/* remove trailing newline as it gets already appended by the logger */
if (fmt[len - 1] == '\n') {
fmt2 = g_strdup (fmt);
fmt2[len - 1] = '\0';
}
gst_debug_log_valist (ffmpeg_debug, gst_level, "", "", 0, NULL,
fmt2 ? fmt2 : fmt, vl);
g_free (fmt2);
}
#endif
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (ffmpeg_debug, "libav", 0, "libav elements");
/* Bail if not FFmpeg. We can no longer ensure operation with Libav */
if (!gst_ffmpeg_avcodec_is_ffmpeg ()) {
GST_ERROR_OBJECT (plugin,
"Incompatible, non-FFmpeg libavcodec/format found");
return FALSE;
}
#ifndef GST_DISABLE_GST_DEBUG
av_log_set_callback (gst_ffmpeg_log_callback);
#endif
gst_ffmpeg_init_pix_fmt_info ();
/* build global ffmpeg param/property info */
gst_ffmpeg_cfg_init ();
gst_ffmpegaudenc_register (plugin);
gst_ffmpegvidenc_register (plugin);
gst_ffmpegauddec_register (plugin);
gst_ffmpegviddec_register (plugin);
gst_ffmpegdemux_register (plugin);
gst_ffmpegmux_register (plugin);
gst_ffmpegdeinterlace_register (plugin);
/* Now we can return the pointer to the newly created Plugin object. */
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
libav,
"All libav codecs and formats (" LIBAV_SOURCE ")",
plugin_init, PACKAGE_VERSION, LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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