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gstreamer/ext/ffmpeg/gstffmpegcodecmap.c
Ronald S. Bultje 91b5e3f532 ext/ffmpeg/: Add encode property to codec mapper, so we can get better-fitting caps. Also use this everywhere. ;). La... 
Original commit message from CVS:
* ext/ffmpeg/gstffmpegcodecmap.c: (gst_ffmpeg_codecid_to_caps):
* ext/ffmpeg/gstffmpegcodecmap.h:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_chain),
(gst_ffmpegdec_register):
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_add),
(gst_ffmpegdemux_register):
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_connect),
(gst_ffmpegenc_register):
* ext/ffmpeg/gstffmpegmux.c: (gst_ffmpegmux_register):
Add encode property to codec mapper, so we can get better-fitting
caps. Also use this everywhere. ;). Lastly, add some new codecIDs
to our list of recognized ones.
2004-03-15 00:01:03 +00:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* This file:
* Copyright (c) 2002-2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#ifdef HAVE_FFMPEG_UNINSTALLED
#include <avcodec.h>
#else
#include <ffmpeg/avcodec.h>
#endif
#include <string.h>
#include "gstffmpegcodecmap.h"
/* this macro makes a caps width fixed or unfixed width/height
* properties depending on whether we've got a context.
*
* See below for why we use this.
*
* We should actually do this stuff at the end, like in riff-media.c,
* but I'm too lazy today. Maybe later.
*/
#define GST_FF_VID_CAPS_NEW(mimetype, props...) \
(context != NULL) ? \
gst_caps_new_simple (mimetype, \
"width", G_TYPE_INT, context->width, \
"height", G_TYPE_INT, context->height, \
"framerate", G_TYPE_DOUBLE, 1. * context->frame_rate / \
context->frame_rate_base, \
##props, NULL) \
: \
gst_caps_new_simple (mimetype, \
"width", GST_TYPE_INT_RANGE, 16, 4096, \
"height", GST_TYPE_INT_RANGE, 16, 4096, \
"framerate", GST_TYPE_DOUBLE_RANGE, 0., G_MAXDOUBLE, \
##props, NULL)
/* same for audio - now with channels/sample rate
*/
#define GST_FF_AUD_CAPS_NEW(mimetype, props...) \
(context != NULL) ? \
gst_caps_new_simple (mimetype, \
"rate", G_TYPE_INT, context->sample_rate, \
"channels", G_TYPE_INT, context->channels, \
##props, NULL) \
: \
gst_caps_new_simple (mimetype, \
##props, NULL)
/* Convert a FFMPEG codec ID and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* CodecID is primarily meant for compressed data GstCaps!
*
* encode is a special parameter. gstffmpegdec will say
* FALSE, gstffmpegenc will say TRUE. The output caps
* depends on this, in such a way that it will be very
* specific, defined, fixed and correct caps for encoders,
* yet very wide, "forgiving" caps for decoders. Example
* for mp3: decode: audio/mpeg,mpegversion=1,layer=[1-3]
* but encode: audio/mpeg,mpegversion=1,layer=3,bitrate=x,
* rate=x,channels=x.
*/
GstCaps *
gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
AVCodecContext *context,
gboolean encode)
{
GstCaps *caps = NULL;
gboolean buildcaps = FALSE;
switch (codec_id) {
case CODEC_ID_MPEG1VIDEO:
/* For decoding, CODEC_ID_MPEG2VIDEO is preferred... So omit here */
if (encode) {
/* FIXME: bitrate */
caps = GST_FF_VID_CAPS_NEW ("video/mpeg",
"mpegversion", G_TYPE_INT, 1,
"systemstream", G_TYPE_BOOLEAN, FALSE,
NULL);
}
break;
case CODEC_ID_MPEG2VIDEO:
if (encode) {
/* FIXME: bitrate */
caps = GST_FF_VID_CAPS_NEW ("video/mpeg",
"mpegversion", G_TYPE_INT, 2,
"systemstream", G_TYPE_BOOLEAN, FALSE,
NULL);
} else {
/* decode both MPEG-1 and MPEG-2; width/height/fps are all in
* the MPEG video stream headers, so may be omitted from caps. */
caps = gst_caps_new_simple ("video/mpeg",
"mpegversion", GST_TYPE_INT_RANGE, 1, 2,
"systemstream", G_TYPE_BOOLEAN, FALSE,
NULL);
}
break;
case CODEC_ID_MPEG2VIDEO_XVMC:
/* this is a special ID - don't need it in GStreamer, I think */
break;
/* I don't know the exact differences between those... Anyone? */
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_H263I:
caps = GST_FF_VID_CAPS_NEW ("video/x-h263");
break;
case CODEC_ID_RV10:
case CODEC_ID_RV20:
do {
gint version = (codec_id == CODEC_ID_RV10) ? 1 : 2;
/* FIXME: context->sub_id must be filled in during decoding */
caps = GST_FF_VID_CAPS_NEW ("video/x-pn-realvideo",
"systemstream", G_TYPE_BOOLEAN, FALSE,
"rmversion", G_TYPE_INT, version,
NULL);
} while (0);
break;
case CODEC_ID_MP2:
/* we use CODEC_ID_MP3 for decoding */
if (encode) {
/* FIXME: bitrate */
caps = GST_FF_AUD_CAPS_NEW ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1,
"layer", G_TYPE_INT, 2,
NULL);
}
break;
case CODEC_ID_MP3:
if (encode) {
/* FIXME: bitrate */
caps = GST_FF_AUD_CAPS_NEW ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1,
"layer", G_TYPE_INT, 3,
NULL);
} else {
/* Decodes MPEG-1 layer 1/2/3. Samplerate, channels et al are
* in the MPEG audio header, so may be omitted from caps. */
caps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1,
"layer", GST_TYPE_INT_RANGE, 1, 3,
NULL);
}
break;
case CODEC_ID_VORBIS:
/* This one is disabled for several reasons:
* - GStreamer already has perfect Ogg and Vorbis support
* - The ffmpeg implementation depends on libvorbis/libogg,
* which are not included in the ffmpeg that GStreamer ships.
* - The ffmpeg implementation depends on shared objects between
* the ogg demuxer and vorbis decoder, which GStreamer doesn't.
*/
break;
case CODEC_ID_AC3:
/* Decoding is disabled, because:
* - it depends on liba52, which we don't ship in ffmpeg.
* - we already have a liba52 plugin ourselves.
*/
if (encode) {
/* FIXME: bitrate */
caps = GST_FF_AUD_CAPS_NEW ("audio/x-ac3");
}
break;
/* MJPEG is normal JPEG, Motion-JPEG and Quicktime MJPEG-A. MJPEGB
* is Quicktime's MJPEG-B. LJPEG is lossless JPEG. I don't know what
* sp5x is, but it's apparently something JPEG... We don't separate
* between those in GStreamer. Should we (at least between MJPEG,
* MJPEG-B and sp5x decoding...)? */
case CODEC_ID_MJPEG:
case CODEC_ID_MJPEGB:
case CODEC_ID_LJPEG:
case CODEC_ID_SP5X:
caps = GST_FF_VID_CAPS_NEW ("video/x-jpeg");
break;
case CODEC_ID_MPEG4:
if (encode) {
/* I'm not exactly sure what ffmpeg outputs... ffmpeg itself uses
* the AVI fourcc 'DIVX', but 'mp4v' for Quicktime... */
/* FIXME: bitrate */
caps = GST_FF_VID_CAPS_NEW ("video/mpeg",
"systemstream", G_TYPE_BOOLEAN, FALSE,
"mpegversion", G_TYPE_INT, 4,
NULL);
} else {
/* The trick here is to separate xvid, divx, mpeg4, 3ivx et al */
caps = GST_FF_VID_CAPS_NEW ("video/mpeg",
"mpegversion", G_TYPE_INT, 4,
"systemstream", G_TYPE_BOOLEAN, FALSE,
NULL);
gst_caps_append (caps, GST_FF_VID_CAPS_NEW ("video/x-divx",
"divxversion", GST_TYPE_INT_RANGE, 4, 5,
NULL));
gst_caps_append (caps, GST_FF_VID_CAPS_NEW ("video/x-xvid"));
gst_caps_append (caps, GST_FF_VID_CAPS_NEW ("video/x-3ivx"));
}
break;
case CODEC_ID_RAWVIDEO:
caps = gst_ffmpeg_codectype_to_caps (CODEC_TYPE_VIDEO, context);
break;
case CODEC_ID_MSMPEG4V1:
case CODEC_ID_MSMPEG4V2:
case CODEC_ID_MSMPEG4V3:
do {
gint version = 41 + codec_id - CODEC_ID_MSMPEG4V1;
/* encode-FIXME: bitrate */
caps = GST_FF_VID_CAPS_NEW ("video/x-msmpeg",
"msmpegversion", G_TYPE_INT, version,
NULL);
if (!encode && codec_id == CODEC_ID_MSMPEG4V3) {
gst_caps_append (caps, GST_FF_VID_CAPS_NEW ("video/x-divx",
"divxversion", G_TYPE_INT, 3,
NULL));
}
} while (0);
break;
case CODEC_ID_WMV1:
case CODEC_ID_WMV2:
do {
gint version = (codec_id == CODEC_ID_WMV1) ? 1 : 2;
/* encode-FIXME: bitrate */
caps = GST_FF_VID_CAPS_NEW ("video/x-wmv",
"wmvversion", G_TYPE_INT, version,
NULL);
} while (0);
break;
case CODEC_ID_FLV1:
buildcaps = TRUE;
break;
case CODEC_ID_SVQ1:
caps = GST_FF_VID_CAPS_NEW ("video/x-svq",
"svqversion", G_TYPE_INT, 1,
NULL);
break;
case CODEC_ID_SVQ3:
caps = GST_FF_VID_CAPS_NEW ("video/x-svq",
"svqversion", G_TYPE_INT, 3,
"halfpel_flag", GST_TYPE_INT_RANGE, 0, 1,
"thirdpel_flag", GST_TYPE_INT_RANGE, 0, 1,
"low_delay", GST_TYPE_INT_RANGE, 0, 1,
"unknown_svq3_flag", GST_TYPE_INT_RANGE, 0, 1,
NULL);
break;
case CODEC_ID_DVAUDIO:
caps = GST_FF_AUD_CAPS_NEW ("audio/x-dv");
break;
case CODEC_ID_DVVIDEO:
caps = GST_FF_VID_CAPS_NEW ("video/dv");
break;
case CODEC_ID_WMAV1:
case CODEC_ID_WMAV2:
do {
gint version = (codec_id == CODEC_ID_WMAV1) ? 1 : 2;
caps = GST_FF_AUD_CAPS_NEW ("audio/x-wma",
"wmaversion", G_TYPE_INT, version,
"flags1", GST_TYPE_INT_RANGE, G_MININT, G_MAXINT,
"flags2", GST_TYPE_INT_RANGE, G_MININT, G_MAXINT,
"block_align", GST_TYPE_INT_RANGE, 0, G_MAXINT,
"bitrate", GST_TYPE_INT_RANGE, 0, G_MAXINT,
NULL);
} while (0);
break;
case CODEC_ID_MACE3:
case CODEC_ID_MACE6:
do {
gint version = (codec_id == CODEC_ID_MACE3) ? 3 : 6;
caps = GST_FF_AUD_CAPS_NEW ("audio/x-mace",
"maceversion", G_TYPE_INT, version,
NULL);
} while (0);
break;
case CODEC_ID_HUFFYUV:
caps = GST_FF_VID_CAPS_NEW ("video/x-huffyuv");
break;
case CODEC_ID_CYUV:
buildcaps = TRUE;
break;
case CODEC_ID_H264:
caps = GST_FF_VID_CAPS_NEW ("video/x-h264");
break;
case CODEC_ID_INDEO3:
caps = GST_FF_VID_CAPS_NEW ("video/x-indeo",
"indeoversion", G_TYPE_INT, 3,
NULL);
break;
case CODEC_ID_VP3:
caps = GST_FF_VID_CAPS_NEW ("video/x-vp3");
break;
case CODEC_ID_THEORA:
caps = GST_FF_VID_CAPS_NEW ("video/x-theora");
break;
case CODEC_ID_AAC:
case CODEC_ID_MPEG4AAC:
/* ffmpeg uses libfaac/libfaad for those. We do not ship these as
* part of ffmpeg, so defining those is useless. Besides, we have
* our own faad/faac plugins. */
break;
case CODEC_ID_ASV1:
case CODEC_ID_ASV2:
buildcaps = TRUE;
break;
case CODEC_ID_FFV1:
caps = GST_FF_VID_CAPS_NEW ("video/x-ffv",
"ffvversion", G_TYPE_INT, 1,
NULL);
break;
case CODEC_ID_4XM:
caps = GST_FF_VID_CAPS_NEW ("video/x-4xm");
break;
case CODEC_ID_VCR1:
case CODEC_ID_CLJR:
case CODEC_ID_MDEC:
case CODEC_ID_ROQ:
case CODEC_ID_INTERPLAY_VIDEO:
case CODEC_ID_XAN_WC3:
case CODEC_ID_XAN_WC4:
case CODEC_ID_RPZA:
buildcaps = TRUE;
break;
case CODEC_ID_CINEPAK:
caps = GST_FF_VID_CAPS_NEW ("video/x-cinepak");
break;
case CODEC_ID_WS_VQA:
case CODEC_ID_MSRLE:
case CODEC_ID_MSVIDEO1:
case CODEC_ID_IDCIN:
case CODEC_ID_8BPS:
case CODEC_ID_SMC:
case CODEC_ID_FLIC:
case CODEC_ID_TRUEMOTION1:
case CODEC_ID_VMDVIDEO:
case CODEC_ID_VMDAUDIO:
case CODEC_ID_MSZH:
case CODEC_ID_ZLIB:
case CODEC_ID_QTRLE:
buildcaps = TRUE;
break;
/* weird quasi-codecs for the demuxers only */
case CODEC_ID_PCM_S16LE:
case CODEC_ID_PCM_S16BE:
case CODEC_ID_PCM_U16LE:
case CODEC_ID_PCM_U16BE:
case CODEC_ID_PCM_S8:
case CODEC_ID_PCM_U8:
do {
gint width = 0, depth = 0, endianness = 0;
gboolean signedness = FALSE; /* blabla */
switch (codec_id) {
case CODEC_ID_PCM_S16LE:
width = 16; depth = 16;
endianness = G_LITTLE_ENDIAN;
signedness = TRUE;
break;
case CODEC_ID_PCM_S16BE:
width = 16; depth = 16;
endianness = G_BIG_ENDIAN;
signedness = TRUE;
break;
case CODEC_ID_PCM_U16LE:
width = 16; depth = 16;
endianness = G_LITTLE_ENDIAN;
signedness = FALSE;
break;
case CODEC_ID_PCM_U16BE:
width = 16; depth = 16;
endianness = G_BIG_ENDIAN;
signedness = FALSE;
break;
case CODEC_ID_PCM_S8:
width = 8; depth = 8;
endianness = G_BYTE_ORDER;
signedness = TRUE;
break;
case CODEC_ID_PCM_U8:
width = 8; depth = 8;
endianness = G_BYTE_ORDER;
signedness = FALSE;
break;
default:
g_assert(0); /* don't worry, we never get here */
break;
}
caps = GST_FF_AUD_CAPS_NEW ("audio/x-raw-int",
"width", G_TYPE_INT, width,
"depth", G_TYPE_INT, depth,
"endianness", G_TYPE_INT, endianness,
"signed", G_TYPE_BOOLEAN, signedness,
NULL);
} while (0);
break;
case CODEC_ID_PCM_MULAW:
caps = GST_FF_AUD_CAPS_NEW ("audio/x-mulaw");
break;
case CODEC_ID_PCM_ALAW:
caps = GST_FF_AUD_CAPS_NEW ("audio/x-alaw");
break;
case CODEC_ID_ADPCM_IMA_QT:
case CODEC_ID_ADPCM_IMA_WAV:
case CODEC_ID_ADPCM_IMA_DK3:
case CODEC_ID_ADPCM_IMA_DK4:
case CODEC_ID_ADPCM_IMA_WS:
case CODEC_ID_ADPCM_IMA_SMJPEG:
case CODEC_ID_ADPCM_MS:
case CODEC_ID_ADPCM_4XM:
case CODEC_ID_ADPCM_XA:
case CODEC_ID_ADPCM_ADX:
case CODEC_ID_ADPCM_EA:
case CODEC_ID_ADPCM_G726:
do {
gchar *layout = NULL;
switch (codec_id) {
case CODEC_ID_ADPCM_IMA_QT:
layout = "quicktime";
break;
case CODEC_ID_ADPCM_IMA_WAV:
layout = "wav";
break;
case CODEC_ID_ADPCM_IMA_DK3:
layout = "dk3";
break;
case CODEC_ID_ADPCM_IMA_DK4:
layout = "dk4";
break;
case CODEC_ID_ADPCM_IMA_WS:
layout = "westwood";
break;
case CODEC_ID_ADPCM_IMA_SMJPEG:
layout = "smjpeg";
break;
case CODEC_ID_ADPCM_MS:
layout = "microsoft";
break;
case CODEC_ID_ADPCM_4XM:
layout = "4xm";
break;
case CODEC_ID_ADPCM_XA:
layout = "xa";
break;
case CODEC_ID_ADPCM_ADX:
layout = "adx";
break;
case CODEC_ID_ADPCM_EA:
layout = "ea";
break;
case CODEC_ID_ADPCM_G726:
layout = "g726";
break;
default:
g_assert (0); /* don't worry, we never get here */
break;
}
/* FIXME: someone please check whether we need additional properties
* in this caps definition. */
caps = GST_FF_AUD_CAPS_NEW ("audio/x-adpcm",
"layout", G_TYPE_STRING, layout,
NULL);
} while (0);
break;
case CODEC_ID_AMR_NB:
case CODEC_ID_AMR_WB:
/* what's this? ffmpeg uses external libs here that we don't include
* so there's no point in defining those. Still, I want to know what
* it actually is... */
break;
case CODEC_ID_RA_144:
case CODEC_ID_RA_288:
do {
gint version = (codec_id == CODEC_ID_RA_144) ? 1 : 2;
/* FIXME: properties? */
caps = GST_FF_AUD_CAPS_NEW ("audio/x-pn-realaudio",
"raversion", G_TYPE_INT, version,
NULL);
} while (0);
break;
case CODEC_ID_ROQ_DPCM:
case CODEC_ID_INTERPLAY_DPCM:
case CODEC_ID_XAN_DPCM:
do {
gchar *layout = NULL;
switch (codec_id) {
case CODEC_ID_ROQ_DPCM:
layout = "roq";
break;
case CODEC_ID_INTERPLAY_DPCM:
layout = "interplay";
break;
case CODEC_ID_XAN_DPCM:
layout = "xan";
break;
default:
g_assert (0); /* don't worry, we never get here */
break;
}
/* FIXME: someone please check whether we need additional properties
* in this caps definition. */
caps = GST_FF_AUD_CAPS_NEW ("audio/x-dpcm",
"layout", G_TYPE_STRING, layout,
NULL);
} while (0);
break;
case CODEC_ID_FLAC:
/* Note that ffmpeg has no encoder yet, but just for safety. In the
* encoder case, we want to add things like samplerate, channels... */
if (!encode) {
caps = gst_caps_new_simple ("audio/x-flac", NULL);
}
break;
default:
g_warning ("Unknown codec ID %d, please add here", codec_id);
break;
}
if (buildcaps) {
AVCodec *codec;
if ((codec = avcodec_find_decoder (codec_id)) ||
(codec = avcodec_find_encoder (codec_id))) {
gchar *mime = NULL;
switch (codec->type) {
case CODEC_TYPE_VIDEO:
mime = g_strdup_printf ("video/x-gst_ff-%s", codec->name);
caps = GST_FF_VID_CAPS_NEW (mime);
g_free (mime);
break;
case CODEC_TYPE_AUDIO:
mime = g_strdup_printf ("audio/x-gst_ff-%s", codec->name);
caps = GST_FF_AUD_CAPS_NEW (mime);
g_free (mime);
break;
default:
break;
}
}
}
if (caps != NULL) {
char *str = gst_caps_to_string (caps);
GST_DEBUG ("caps for codec_id=%d: %s", codec_id, str);
g_free (str);
} else {
GST_WARNING ("No caps found for codec_id=%d", codec_id);
}
return caps;
}
/* Convert a FFMPEG Pixel Format and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* See below for usefullness
*/
static GstCaps *
gst_ffmpeg_pixfmt_to_caps (enum PixelFormat pix_fmt,
AVCodecContext *context)
{
GstCaps *caps = NULL;
int bpp = 0, depth = 0, endianness = 0;
gulong g_mask = 0, r_mask = 0, b_mask = 0;
guint32 fmt = 0;
switch (pix_fmt) {
case PIX_FMT_YUV420P:
fmt = GST_MAKE_FOURCC ('I','4','2','0');
break;
case PIX_FMT_YUV422:
fmt = GST_MAKE_FOURCC ('Y','U','Y','2');
break;
case PIX_FMT_RGB24:
bpp = depth = 24;
endianness = G_BIG_ENDIAN;
r_mask = 0xff0000; g_mask = 0x00ff00; b_mask = 0x0000ff;
break;
case PIX_FMT_BGR24:
bpp = depth = 24;
endianness = G_BIG_ENDIAN;
r_mask = 0x0000ff; g_mask = 0x00ff00; b_mask = 0xff0000;
break;
case PIX_FMT_YUV422P:
fmt = GST_MAKE_FOURCC ('Y','4','2','B');
break;
case PIX_FMT_YUV444P:
/* .. */
break;
case PIX_FMT_RGBA32:
bpp = 32; depth = 24;
endianness = G_BIG_ENDIAN;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
r_mask = 0x00ff0000; g_mask = 0x0000ff00; b_mask = 0x000000ff;
#else
r_mask = 0x0000ff00; g_mask = 0x00ff0000; b_mask = 0xff000000;
#endif
break;
case PIX_FMT_YUV410P:
fmt = GST_MAKE_FOURCC ('Y','U','V','9');
break;
case PIX_FMT_YUV411P:
fmt = GST_MAKE_FOURCC ('Y','4','1','B');
break;
case PIX_FMT_RGB565:
bpp = depth = 16;
endianness = G_BYTE_ORDER;
r_mask = 0xf800; g_mask = 0x07e0; b_mask = 0x001f;
break;
case PIX_FMT_RGB555:
bpp = 16; depth = 15;
endianness = G_BYTE_ORDER;
r_mask = 0x7c00; g_mask = 0x03e0; b_mask = 0x001f;
break;
default:
/* give up ... */
break;
}
if (bpp != 0) {
caps = GST_FF_VID_CAPS_NEW ("video/x-raw-rgb",
"bpp", G_TYPE_INT, bpp,
"depth", G_TYPE_INT, depth,
"red_mask", G_TYPE_INT, r_mask,
"green_mask", G_TYPE_INT, g_mask,
"blue_mask", G_TYPE_INT, b_mask,
"endianness", G_TYPE_INT, endianness,
NULL);
} else if (fmt) {
caps = GST_FF_VID_CAPS_NEW ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, fmt,
NULL);
}
if (caps != NULL) {
char *str = gst_caps_to_string (caps);
GST_DEBUG ("caps for pix_fmt=%d: %s", pix_fmt, str);
g_free(str);
} else {
GST_WARNING ("No caps found for pix_fmt=%d", pix_fmt);
}
return caps;
}
/* Convert a FFMPEG Sample Format and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* See below for usefullness
*/
static GstCaps *
gst_ffmpeg_smpfmt_to_caps (enum SampleFormat sample_fmt,
AVCodecContext *context)
{
GstCaps *caps = NULL;
int bpp = 0;
gboolean signedness = FALSE;
switch (sample_fmt) {
case SAMPLE_FMT_S16:
signedness = TRUE;
bpp = 16;
break;
default:
/* .. */
break;
}
if (bpp) {
caps = GST_FF_AUD_CAPS_NEW ("audio/x-raw-int",
"signed", G_TYPE_BOOLEAN, signedness,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"width", G_TYPE_INT, bpp,
"depth", G_TYPE_INT, bpp,
NULL);
}
if (caps != NULL) {
char *str = gst_caps_to_string (caps);
GST_DEBUG ("caps for sample_fmt=%d: %s", sample_fmt, str);
g_free(str);
} else {
GST_WARNING ("No caps found for sample_fmt=%d", sample_fmt);
}
return caps;
}
/* Convert a FFMPEG codec Type and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* CodecType is primarily meant for uncompressed data GstCaps!
*/
GstCaps *
gst_ffmpeg_codectype_to_caps (enum CodecType codec_type,
AVCodecContext *context)
{
GstCaps *caps;
switch (codec_type) {
case CODEC_TYPE_VIDEO:
if (context) {
caps = gst_ffmpeg_pixfmt_to_caps (context->pix_fmt, context);
} else {
GstCaps *temp;
enum PixelFormat i;
caps = gst_caps_new_empty ();
for (i = 0; i < PIX_FMT_NB; i++) {
temp = gst_ffmpeg_pixfmt_to_caps (i, NULL);
if (temp != NULL) {
gst_caps_append (caps, temp);
}
}
}
break;
case CODEC_TYPE_AUDIO:
if (context) {
caps = gst_ffmpeg_smpfmt_to_caps (context->sample_fmt, context);
} else {
GstCaps *temp;
enum SampleFormat i;
caps = gst_caps_new_empty ();
for (i = 0; i <= SAMPLE_FMT_S16; i++) {
temp = gst_ffmpeg_smpfmt_to_caps (i, NULL);
if (temp != NULL) {
gst_caps_append (caps, temp);
}
}
}
break;
default:
/* .. */
caps = NULL;
break;
}
return caps;
}
/* Construct the context extradata from caps
* when needed.
*/
static void
gst_ffmpeg_caps_to_extradata (const GstCaps *caps,
AVCodecContext *context)
{
GstStructure *structure;
const gchar *mimetype;
g_return_if_fail (gst_caps_get_size (caps) == 1);
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
if (!strcmp(mimetype, "audio/x-wma")) {
gint flags1, flags2, wmaversion = 0;
if (!gst_structure_get_int (structure, "flags1", &flags1) ||
!gst_structure_get_int (structure, "flags2", &flags2) ||
!gst_structure_get_int (structure, "wmaversion", &wmaversion)) {
g_warning ("invalid caps for audio/x-wma");
return;
}
/*
* Rebuild context data from flags1 & flags2
* see wmadec in ffmpeg/libavcodec/wmadec.c
*/
gst_structure_get_int (structure, "wmaversion", &wmaversion);
switch (wmaversion) {
case 1:
/* FIXME: is this freed with g_free? If not, don't use g_malloc */
context->extradata = (guint8 *) g_malloc0 (4);
((guint8 *)context->extradata)[0] = flags1;
((guint8 *)context->extradata)[2] = flags2;
context->extradata_size = 4;
break;
case 2:
/* FIXME: is this freed with g_free? If not, don't use g_malloc */
context->extradata = (guint8 *) g_malloc0 (6);
((guint8 *) context->extradata)[0] = flags1;
((guint8 *) context->extradata)[1] = flags1 >> 8;
((guint8 *) context->extradata)[2] = flags1 >> 16;
((guint8 *) context->extradata)[3] = flags1 >> 24;
((guint8 *) context->extradata)[4] = flags2;
((guint8 *) context->extradata)[5] = flags2 >> 8;
context->extradata_size = 6;
break;
default:
g_warning ("Unknown wma version %d\n", wmaversion);
break;
}
return;
}
if (!strcmp(mimetype, "video/x-svq")) {
gint version = 0;
if (!gst_structure_get_int (structure, "svqversion", &version)) {
g_warning ("invalid caps for video/x-svq");
return;
}
if (version == 3) {
gint halfpel_flag, thirdpel_flag, low_delay, unknown_svq3_flag;
guint16 flags;
if (!gst_structure_get_int (structure, "halfpel_flag", &halfpel_flag) ||
!gst_structure_get_int (structure, "thirdpel_flag", &thirdpel_flag) ||
!gst_structure_get_int (structure, "low_delay", &low_delay) ||
!gst_structure_get_int (structure, "unknown_svq3_flag", &unknown_svq3_flag)) {
g_warning ("invalid caps for video/x-svq");
return;
}
context->extradata = (guint8 *) g_malloc0 (0x64);
g_stpcpy (context->extradata, "SVQ3");
flags = 1 << 3;
flags |= low_delay;
flags = flags << 2;
flags |= unknown_svq3_flag;
flags = flags << 6;
flags |= halfpel_flag;
flags = flags << 1;
flags |= thirdpel_flag;
flags = flags << 3;
flags = GUINT16_FROM_LE (flags);
memcpy (context->extradata + 0x62, &flags, 2);
context->extradata_size = 0x64;
}
}
}
/* Convert a GstCaps (audio/raw) to a FFMPEG SampleFmt
* and other audio properties in a AVCodecContext.
*
* For usefullness, see below
*/
static void
gst_ffmpeg_caps_to_smpfmt (const GstCaps *caps,
AVCodecContext *context)
{
GstStructure *structure;
gint depth = 0, width = 0, endianness = 0;
gboolean signedness = FALSE;
g_return_if_fail (gst_caps_get_size (caps) == 1);
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_get_int (structure, "width", &width) &&
gst_structure_get_int (structure, "depth", &depth) &&
gst_structure_get_int (structure, "signed", &signedness) &&
gst_structure_get_int (structure, "endianness", &endianness)) {
if (width == 16 && depth == 16 &&
endianness == G_BYTE_ORDER && signedness == TRUE) {
context->sample_fmt = SAMPLE_FMT_S16;
}
}
gst_structure_get_int (structure, "channels", &context->channels);
gst_structure_get_int (structure, "rate", &context->sample_rate);
gst_structure_get_int (structure, "block_align", &context->block_align);
gst_structure_get_int (structure, "bitrate", &context->bit_rate);
gst_ffmpeg_caps_to_extradata (caps, context);
}
/* Convert a GstCaps (video/raw) to a FFMPEG PixFmt
* and other video properties in a AVCodecContext.
*
* For usefullness, see below
*/
static void
gst_ffmpeg_caps_to_pixfmt (const GstCaps *caps,
AVCodecContext *context)
{
GstStructure *structure;
gdouble fps;
g_return_if_fail (gst_caps_get_size (caps) == 1);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &context->width);
gst_structure_get_int (structure, "height", &context->height);
if (gst_structure_get_double (structure, "framerate", &fps)) {
context->frame_rate = fps * DEFAULT_FRAME_RATE_BASE;
context->frame_rate_base = DEFAULT_FRAME_RATE_BASE;
}
if (strcmp (gst_structure_get_name (structure), "video/x-raw-yuv") == 0) {
guint32 fourcc;
if (gst_structure_get_fourcc (structure, "format", &fourcc)) {
switch (fourcc) {
case GST_MAKE_FOURCC ('Y','U','Y','2'):
context->pix_fmt = PIX_FMT_YUV422;
break;
case GST_MAKE_FOURCC ('I','4','2','0'):
context->pix_fmt = PIX_FMT_YUV420P;
break;
case GST_MAKE_FOURCC ('Y','4','1','B'):
context->pix_fmt = PIX_FMT_YUV411P;
break;
case GST_MAKE_FOURCC ('Y','4','2','B'):
context->pix_fmt = PIX_FMT_YUV422P;
break;
case GST_MAKE_FOURCC ('Y','U','V','9'):
context->pix_fmt = PIX_FMT_YUV410P;
break;
#if 0
case FIXME:
context->pix_fmt = PIX_FMT_YUV444P;
break;
#endif
}
}
} else if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") == 0) {
gint bpp = 0, rmask = 0, endianness = 0;
if (gst_structure_get_int (structure, "bpp", &bpp) &&
gst_structure_get_int (structure, "endianness", &endianness) &&
gst_structure_get_int (structure, "red_mask", &rmask)) {
switch (bpp) {
case 32:
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
if (rmask == 0x00ff0000)
#else
if (rmask == 0x0000ff00)
#endif
context->pix_fmt = PIX_FMT_RGBA32;
break;
case 24:
if (rmask == 0x0000FF)
context->pix_fmt = PIX_FMT_BGR24;
else
context->pix_fmt = PIX_FMT_RGB24;
break;
case 16:
if (endianness == G_BYTE_ORDER)
context->pix_fmt = PIX_FMT_RGB565;
break;
case 15:
if (endianness == G_BYTE_ORDER)
context->pix_fmt = PIX_FMT_RGB555;
break;
default:
/* nothing */
break;
}
}
}
gst_ffmpeg_caps_to_extradata (caps, context);
}
/* Convert a GstCaps and a FFMPEG codec Type to a
* AVCodecContext. If the context is ommitted, no fixed values
* for video/audio size will be included in the context
*
* CodecType is primarily meant for uncompressed data GstCaps!
*/
void
gst_ffmpeg_caps_to_codectype (enum CodecType type,
const GstCaps *caps,
AVCodecContext *context)
{
if (context == NULL)
return;
switch (type) {
case CODEC_TYPE_VIDEO:
gst_ffmpeg_caps_to_pixfmt (caps, context);
break;
case CODEC_TYPE_AUDIO:
gst_ffmpeg_caps_to_smpfmt (caps, context);
break;
default:
/* unknown */
break;
}
}
/* _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
*
* Note: we don't need any additional info because the caps
* isn't supposed to contain any useful info besides the
* media type anyway
*/
GstCaps *
gst_ffmpeg_formatid_to_caps (const gchar *format_name)
{
GstCaps *caps = NULL;
if (!strcmp (format_name, "mpeg")) {
caps = gst_caps_new_simple ("video/mpeg",
"systemstream", G_TYPE_BOOLEAN, TRUE,
NULL);
} else if (!strcmp (format_name, "mpegts")) {
caps = gst_caps_new_simple ("video/mpegts",
"systemstream", G_TYPE_BOOLEAN, TRUE,
NULL);
} else if (!strcmp (format_name, "rm")) {
caps = gst_caps_new_simple ("application/x-pn-realmedia",
"systemstream", G_TYPE_BOOLEAN, TRUE,
NULL);
} else if (!strcmp (format_name, "asf")) {
caps = gst_caps_new_simple ("video/x-ms-asf",
NULL);
} else if (!strcmp (format_name, "avi")) {
caps = gst_caps_new_simple ("video/x-msvideo",
NULL);
} else if (!strcmp (format_name, "wav")) {
caps = gst_caps_new_simple ("video/x-wav",
NULL);
} else if (!strcmp (format_name, "swf")) {
caps = gst_caps_new_simple ("application/x-shockwave-flash",
NULL);
} else if (!strcmp (format_name, "au")) {
caps = gst_caps_new_simple ("audio/x-au",
NULL);
} else if (!strcmp (format_name, "mov_mp4_m4a_3gp")) {
caps = gst_caps_new_simple ("video/quicktime",
NULL);
} else if (!strcmp (format_name, "dv")) {
caps = gst_caps_new_simple ("video/x-dv",
"systemstream", G_TYPE_BOOLEAN, TRUE,
NULL);
} else if (!strcmp (format_name, "4xm")) {
caps = gst_caps_new_simple ("video/x-4xm",
NULL);
} else if (!strcmp (format_name, "matroska")) {
caps = gst_caps_new_simple ("video/x-matroska",
NULL);
} else {
gchar *name;
GST_WARNING ("Could not create stream format caps for %s", format_name);
name = g_strdup_printf ("application/x-gst_ff-%s", format_name);
caps = gst_caps_new_simple (name, NULL);
g_free (name);
}
return caps;
}
/* Convert a GstCaps to a FFMPEG codec ID. Size et all
* are omitted, that can be queried by the user itself,
* we're not eating the GstCaps or anything
* A pointer to an allocated context is also needed for
* optional extra info
*
* FIXME: lots of ffmpeg decoders need more properties...
*/
enum CodecID
gst_ffmpeg_caps_to_codecid (const GstCaps *caps,
AVCodecContext *context)
{
enum CodecID id = CODEC_ID_NONE;
const gchar *mimetype;
const GstStructure *structure;
gboolean video = FALSE, audio = FALSE; /* we want to be sure! */
g_return_val_if_fail (caps != NULL, CODEC_ID_NONE);
g_return_val_if_fail (gst_caps_get_size (caps) == 1, CODEC_ID_NONE);
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
if (!strcmp (mimetype, "video/x-raw-rgb")) {
id = CODEC_ID_RAWVIDEO;
if (context != NULL) {
gint bpp = 0, endianness = 0, rmask = 0;
enum PixelFormat pix_fmt = -1;
gst_structure_get_int (structure, "bpp", &bpp);
gst_structure_get_int (structure, "endianness", &endianness);
gst_structure_get_int (structure, "rmask", &rmask);
switch (bpp) {
case 15:
if (endianness == G_BYTE_ORDER) {
pix_fmt = PIX_FMT_RGB555;
}
break;
case 16:
if (endianness == G_BYTE_ORDER) {
pix_fmt = PIX_FMT_RGB565;
}
break;
case 24:
if (rmask == 0xff0000) {
pix_fmt = PIX_FMT_RGB24;
} else {
pix_fmt = PIX_FMT_BGR24;
}
break;
case 32:
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
if (rmask == 0x00ff0000) {
#else
if (rmask == 0x0000ff00) {
#endif
pix_fmt = PIX_FMT_RGBA32;
}
break;
default:
/* ... */
break;
}
/* only set if actually recognized! */
if (pix_fmt != -1) {
video = TRUE;
context->pix_fmt = pix_fmt;
} else {
id = CODEC_ID_NONE;
}
}
} else if (!strcmp (mimetype, "video/x-raw-yuv")) {
id = CODEC_ID_RAWVIDEO;
if (context != NULL) {
guint32 fmt_fcc = 0;
enum PixelFormat pix_fmt = -1;
gst_structure_get_fourcc (structure, "format", &fmt_fcc);
switch (fmt_fcc) {
case GST_MAKE_FOURCC ('Y','U','Y','2'):
pix_fmt = PIX_FMT_YUV422;
break;
case GST_MAKE_FOURCC ('I','4','2','0'):
pix_fmt = PIX_FMT_YUV420P;
break;
case GST_MAKE_FOURCC ('Y','4','1','B'):
pix_fmt = PIX_FMT_YUV411P;
break;
case GST_MAKE_FOURCC ('Y','4','2','B'):
pix_fmt = PIX_FMT_YUV422P;
break;
case GST_MAKE_FOURCC ('Y','U','V','9'):
pix_fmt = PIX_FMT_YUV410P;
break;
default:
/* ... */
break;
}
/* only set if actually recognized! */
if (pix_fmt != -1) {
video = TRUE;
context->pix_fmt = pix_fmt;
} else {
id = CODEC_ID_NONE;
}
}
} else if (!strcmp (mimetype, "audio/x-raw-int")) {
gint depth = 0, width = 0, endianness = 0;
gboolean signedness = FALSE; /* bla default value */
gst_structure_get_int (structure, "endianness", &endianness);
gst_structure_get_boolean (structure, "signed", &signedness);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "depth", &depth);
if (context) {
context->sample_rate = 0;
context->channels = 0;
gst_structure_get_int (structure, "channels", &context->channels);
gst_structure_get_int (structure, "rate", &context->sample_rate);
}
if (depth == width) {
switch (depth) {
case 8:
if (signedness) {
id = CODEC_ID_PCM_S8;
} else {
id = CODEC_ID_PCM_U8;
}
break;
case 16:
switch (endianness) {
case G_BIG_ENDIAN:
if (signedness) {
id = CODEC_ID_PCM_S16BE;
} else {
id = CODEC_ID_PCM_U16BE;
}
break;
case G_LITTLE_ENDIAN:
if (signedness) {
id = CODEC_ID_PCM_S16LE;
} else {
id = CODEC_ID_PCM_U16LE;
}
break;
}
break;
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
}
} else if (!strcmp(mimetype, "audio/x-mulaw")) {
id = CODEC_ID_PCM_MULAW;
audio = TRUE;
} else if (!strcmp(mimetype, "audio/x-alaw")) {
id = CODEC_ID_PCM_ALAW;
audio = TRUE;
} else if (!strcmp(mimetype, "video/x-dv")) {
id = CODEC_ID_DVVIDEO;
video = TRUE;
} else if (!strcmp(mimetype, "audio/x-dv")) { /* ??? */
id = CODEC_ID_DVAUDIO;
audio = TRUE;
} else if (!strcmp(mimetype, "video/x-h263")) {
id = CODEC_ID_H263; /* or H263[IP] */
video = TRUE;
} else if (!strcmp(mimetype, "video/mpeg")) {
gboolean sys_strm = TRUE;
gint mpegversion = 0;
gst_structure_get_boolean (structure, "systemstream", &sys_strm);
gst_structure_get_int (structure, "mpegversion", &mpegversion);
if (!sys_strm) {
switch (mpegversion) {
case 1:
id = CODEC_ID_MPEG1VIDEO;
break;
case 2:
id = CODEC_ID_MPEG2VIDEO;
break;
case 4:
id = CODEC_ID_MPEG4;
if (context) {
context->codec_tag = GST_MAKE_FOURCC ('m','p','4','v');
}
break;
default:
/* ... */
break;
}
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp(mimetype, "video/x-jpeg")) {
id = CODEC_ID_MJPEG; /* A... B... */
video = TRUE;
} else if (!strcmp(mimetype, "video/x-wmv")) {
gint wmvversion = 0;
gst_structure_get_int (structure, "wmvversion", &wmvversion);
switch (wmvversion) {
case 1:
id = CODEC_ID_WMV1;
break;
case 2:
id = CODEC_ID_WMV2;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp(mimetype, "application/ogg")) {
id = CODEC_ID_VORBIS;
} else if (!strcmp(mimetype, "audio/mpeg")) {
gint layer = 0;
gint mpegversion = 0;
if (gst_structure_get_int (structure, "mpegversion", &mpegversion)) {
switch (mpegversion) {
case 2: /* ffmpeg uses faad for both... */
case 4:
id = CODEC_ID_MPEG4AAC;
break;
case 1:
if (gst_structure_get_int (structure, "layer", &layer)) {
switch (layer) {
case 1:
case 2:
id = CODEC_ID_MP2;
break;
case 3:
id = CODEC_ID_MP3;
break;
default:
/* ... */
break;
}
}
default:
/* ... */
break;
}
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
} else if (!strcmp(mimetype, "audio/x-wma")) {
gint wmaversion = 0;
gst_structure_get_int (structure, "wmaversion", &wmaversion);
switch (wmaversion) {
case 1:
id = CODEC_ID_WMAV1;
break;
case 2:
id = CODEC_ID_WMAV2;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
} else if (!strcmp(mimetype, "audio/x-ac3")) {
id = CODEC_ID_AC3;
} else if (!strcmp(mimetype, "video/x-msmpeg")) {
gint msmpegversion = 0;
gst_structure_get_int (structure, "msmpegversion", &msmpegversion);
switch (msmpegversion) {
case 41:
id = CODEC_ID_MSMPEG4V1;
break;
case 42:
id = CODEC_ID_MSMPEG4V2;
break;
case 43:
id = CODEC_ID_MSMPEG4V3;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp(mimetype, "video/x-svq")) {
gint svqversion = 0;
gst_structure_get_int (structure, "svqversion", &svqversion);
switch (svqversion) {
case 1:
id = CODEC_ID_SVQ1;
break;
case 3:
id = CODEC_ID_SVQ3;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp (mimetype, "video/x-huffyuv")) {
id = CODEC_ID_HUFFYUV;
video = TRUE;
} else if (!strcmp (mimetype, "audio/x-mace")) {
gint maceversion = 0;
gst_structure_get_int (structure, "maceversion", &maceversion);
switch (maceversion) {
case 3:
id = CODEC_ID_MACE3;
break;
case 6:
id = CODEC_ID_MACE6;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
} else if (!strcmp (mimetype, "video/x-theora")) {
id = CODEC_ID_THEORA;
video = TRUE;
} else if (!strcmp (mimetype, "video/x-vp3")) {
id = CODEC_ID_VP3;
video = TRUE;
} else if (!strcmp (mimetype, "video/x-indeo")) {
gint indeoversion = 0;
gst_structure_get_int (structure, "indeoversion", &indeoversion);
switch (indeoversion) {
case 3:
id = CODEC_ID_INDEO3;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp (mimetype, "video/x-divx")) {
gint divxversion = 0;
gst_structure_get_int (structure, "divxversion", &divxversion);
switch (divxversion) {
case 3:
id = CODEC_ID_MSMPEG4V3;
break;
case 4:
case 5:
id = CODEC_ID_MPEG4;
break;
default:
/* ... */
break;
}
if (context) {
context->codec_tag = GST_MAKE_FOURCC ('D','I','V','X');
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp (mimetype, "video/x-3ivx")) {
id = CODEC_ID_MPEG4;
video = TRUE;
if (context) {
context->codec_tag = GST_MAKE_FOURCC ('3','I','V','X');
}
} else if (!strcmp (mimetype, "video/x-xvid")) {
id = CODEC_ID_MPEG4;
video = TRUE;
if (context) {
context->codec_tag = GST_MAKE_FOURCC ('X','V','I','D');
}
} else if (!strcmp (mimetype, "video/x-ffv")) {
gint ffvversion = 0;
gst_structure_get_int (structure, "ffvversion", &ffvversion);
switch (ffvversion) {
case 1:
id = CODEC_ID_FFV1;
break;
default:
/* ... */
break;
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp (mimetype, "x-adpcm")) {
const gchar *layout;
layout = gst_structure_get_string (structure, "layout");
if (layout == NULL) {
/* break */
} else if (!strcmp (layout, "quicktime")) {
id = CODEC_ID_ADPCM_IMA_QT;
} else if (!strcmp (layout, "microsoft")) {
id = CODEC_ID_ADPCM_MS;
} else if (!strcmp (layout, "wav")) {
id = CODEC_ID_ADPCM_IMA_WAV;
} else if (!strcmp (layout, "4xm")) {
id = CODEC_ID_ADPCM_4XM;
} else if (!strcmp (layout, "smjpeg")) {
id = CODEC_ID_ADPCM_IMA_SMJPEG;
} else if (!strcmp (layout, "dk3")) {
id = CODEC_ID_ADPCM_IMA_DK3;
} else if (!strcmp (layout, "dk4")) {
id = CODEC_ID_ADPCM_IMA_DK4;
} else if (!strcmp (layout, "westwood")) {
id = CODEC_ID_ADPCM_IMA_WS;
} else if (!strcmp (layout, "xa")) {
id = CODEC_ID_ADPCM_XA;
} else if (!strcmp (layout, "adx")) {
id = CODEC_ID_ADPCM_ADX;
} else if (!strcmp (layout, "ea")) {
id = CODEC_ID_ADPCM_EA;
} else if (!strcmp (layout, "g726")) {
id = CODEC_ID_ADPCM_G726;
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
} else if (!strcmp (mimetype, "video/x-4xm")) {
id = CODEC_ID_4XM;
video = TRUE;
} else if (!strcmp (mimetype, "audio/x-dpcm")) {
const gchar *layout;
layout = gst_structure_get_string (structure, "layout");
if (!strcmp (layout, "roq")) {
id = CODEC_ID_ROQ_DPCM;
} else if (!strcmp (layout, "interplay")) {
id = CODEC_ID_INTERPLAY_DPCM;
} else if (!strcmp (layout, "xan")) {
id = CODEC_ID_XAN_DPCM;
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
} else if (!strcmp (mimetype, "audio/x-flax")) {
id = CODEC_ID_FLAC;
audio = TRUE;
} else if (!strcmp (mimetype, "video/x-cinepak")) {
id = CODEC_ID_CINEPAK;
video = TRUE;
} else if (!strcmp (mimetype, "video/x-pn-realvideo")) {
gint rmversion;
gst_structure_get_int (structure, "rmversion", &rmversion);
switch (rmversion) {
case 1:
id = CODEC_ID_RV10;
break;
case 2:
id = CODEC_ID_RV20;
break;
default:
/* .. */
break;
}
if (id != CODEC_ID_NONE) {
video = TRUE;
}
} else if (!strcmp (mimetype, "audio/x-pn-realaudio")) {
gint raversion;
gst_structure_get_int (structure, "raversion", &raversion);
switch (raversion) {
case 1:
id = CODEC_ID_RA_144;
break;
case 2:
id = CODEC_ID_RA_288;
break;
default:
/* .. */
break;
}
if (id != CODEC_ID_NONE) {
audio = TRUE;
}
} else if (!strncmp (mimetype, "audio/x-gst_ff-", 15) ||
!strncmp (mimetype, "video/x-gst_ff-", 15)) {
gchar ext[16];
AVCodec *codec;
if (strlen (mimetype) <= 30 &&
sscanf (mimetype, "%*s/x-gst_ff-%s", &ext) == 1) {
if ((codec = avcodec_find_decoder_by_name (ext)) ||
(codec = avcodec_find_encoder_by_name (ext))) {
id = codec->id;
if (mimetype[0] == 'v')
video = TRUE;
else if (mimetype[0] == 'a')
audio = TRUE;
}
}
}
if (context != NULL) {
if (video == TRUE) {
gst_ffmpeg_caps_to_pixfmt (caps, context);
context->codec_type = CODEC_TYPE_VIDEO;
} else if (audio == TRUE) {
gst_ffmpeg_caps_to_smpfmt (caps, context);
context->codec_type = CODEC_TYPE_AUDIO;
}
context->codec_id = id;
}
if (id != CODEC_ID_NONE) {
char *str = gst_caps_to_string (caps);
GST_DEBUG ("The id=%d belongs to the caps %s", id, str);
g_free(str);
}
return id;
}
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