gstreamer/ext/ffmpeg/gstffmpegcodecmap.h
Edward Hervey 269698f020 ffmpegmux: Use information from AVOutputFormat to expose more muxers.
AVOutputFormat does *NOT* contain the full list of codecs a muxer can handle,
but does contain the recommended audio and video codecs. Therefore we use that
information to expose more muxers, until AVOutputFormat contains a list of
*ALL* compatible codecs.
2009-02-27 09:40:03 +01:00

180 lines
4.9 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.
*/
#ifndef __GST_FFMPEG_CODECMAP_H__
#define __GST_FFMPEG_CODECMAP_H__
#ifdef HAVE_FFMPEG_UNINSTALLED
#include <avcodec.h>
#else
#include <libavcodec/avcodec.h>
#endif
#include <gst/gst.h>
#include <gst/audio/multichannel.h>
/*
* _codecid_to_caps () gets the GstCaps that belongs to
* a certain CodecID for a pad with compressed data.
*/
GstCaps *
gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
AVCodecContext *context,
gboolean encode);
/*
* _codectype_to_caps () gets the GstCaps that belongs to
* a certain CodecType for a pad with uncompressed data.
*/
GstCaps *
gst_ffmpeg_codectype_to_caps (enum CodecType codec_type,
AVCodecContext *context,
enum CodecID codec_id,
gboolean encode);
GstCaps *
gst_ffmpeg_codectype_to_audio_caps (AVCodecContext *context,
enum CodecID codec_id,
gboolean encode,
AVCodec *codec);
GstCaps *
gst_ffmpeg_codectype_to_video_caps (AVCodecContext *context,
enum CodecID codec_id,
gboolean encode,
AVCodec *codec);
/*
* caps_to_codecid () transforms a GstCaps that belongs to
* a pad for compressed data to (optionally) a filled-in
* context and a codecID.
*/
enum CodecID
gst_ffmpeg_caps_to_codecid (const GstCaps *caps,
AVCodecContext *context);
/*
* caps_with_codecid () transforms a GstCaps for a known codec
* ID into a filled-in context.
*/
void
gst_ffmpeg_caps_with_codecid (enum CodecID codec_id,
enum CodecType codec_type,
const GstCaps *caps,
AVCodecContext *context);
/*
* caps_with_codectype () transforms a GstCaps that belongs to
* a pad for uncompressed data to a filled-in context.
*/
void
gst_ffmpeg_caps_with_codectype (enum CodecType type,
const GstCaps *caps,
AVCodecContext *context);
/*
* _formatid_to_caps () is meant for muxers/demuxers, it
* transforms a name (ffmpeg way of ID'ing these, why don't
* they have unique numerical IDs?) to the corresponding
* caps belonging to that mux-format
*/
GstCaps *
gst_ffmpeg_formatid_to_caps (const gchar *format_name);
/*
* _formatid_get_codecids () can be used to get the codecIDs
* (CODEC_ID_NONE-terminated list) that fit that specific
* output format.
*/
gboolean
gst_ffmpeg_formatid_get_codecids (const gchar *format_name,
enum CodecID ** video_codec_list,
enum CodecID ** audio_codec_list,
AVOutputFormat * plugin);
/*
* Since FFMpeg has such really cool and useful descriptions
* of its codecs, we use our own...
*/
G_CONST_RETURN gchar *
gst_ffmpeg_get_codecid_longname (enum CodecID codec_id);
/*
*Get the size of an picture
*/
int
gst_ffmpeg_avpicture_get_size (int pix_fmt, int width, int height);
/*
* Fill in pointers in an AVPicture, aligned by 4 (required by X).
*/
int
gst_ffmpeg_avpicture_fill (AVPicture * picture,
uint8_t * ptr,
enum PixelFormat pix_fmt,
int width,
int height);
/*
* Convert from/to a GStreamer <-> FFMpeg timestamp.
*/
static inline guint64
gst_ffmpeg_time_ff_to_gst (gint64 pts, AVRational base)
{
guint64 out;
if (pts == AV_NOPTS_VALUE){
out = GST_CLOCK_TIME_NONE;
} else {
AVRational bq = { 1, GST_SECOND };
out = av_rescale_q (pts, base, bq);
}
return out;
}
static inline gint64
gst_ffmpeg_time_gst_to_ff (guint64 time, AVRational base)
{
gint64 out;
if (!GST_CLOCK_TIME_IS_VALID (time) || base.num == 0) {
out = AV_NOPTS_VALUE;
} else {
AVRational bq = { 1, GST_SECOND };
out = av_rescale_q (time, bq, base);
}
return out;
}
void
gst_ffmpeg_init_pix_fmt_info();
gint
av_smp_format_depth(enum SampleFormat smp_fmt);
#endif /* __GST_FFMPEG_CODECMAP_H__ */