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Add a function that build the context extradata from caps property

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Original commit message from CVS:
Add a function that build the context extradata from caps property
This commit is contained in:
Jeremy Simon 2003-11-07 19:59:28 +00:00
parent f1d5413b05
commit 7ffbef83dd
1 changed files with 78 additions and 27 deletions
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81
ext/ffmpeg/gstffmpegcodecmap.c
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@ -68,6 +68,8 @@
: \
GST_CAPS_NEW (name, \
mimetype, \
"rate", GST_PROPS_INT_RANGE (8000, 96000), \
"channels", GST_PROPS_INT_RANGE (1, 2) , \
##props)
/* Convert a FFMPEG codec ID and optional AVCodecContext
@ -231,8 +233,8 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
case CODEC_ID_DVAUDIO:
caps = GST_FF_AUD_CAPS_NEW ("ffmpeg_dvaudio",
"audio/x-dv",
NULL);
"audio/x-dv"
);
break;
case CODEC_ID_DVVIDEO:
@ -403,14 +405,12 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
case CODEC_ID_PCM_MULAW:
caps = GST_FF_AUD_CAPS_NEW ("ffmpeg_mulawaudio",
"audio/x-mulaw",
NULL);
"audio/x-mulaw");
break;
case CODEC_ID_PCM_ALAW:
caps = GST_FF_AUD_CAPS_NEW ("ffmpeg_alawaudio",
"audio/x-alaw",
NULL);
"audio/x-alaw");
break;
case CODEC_ID_ADPCM_IMA_QT:
@ -687,6 +687,65 @@ gst_ffmpeg_codectype_to_caps (enum CodecType codec_type,
return caps;
}
/* Construct the context extradata from caps
* when needed.
*/
static void
gst_ffmpeg_caps_to_extradata (GstCaps *caps,
AVCodecContext *context)
{
const gchar *mimetype;
mimetype = gst_caps_get_mime(caps);
if (!strcmp(mimetype, "audio/x-wma")) {
if (!gst_caps_has_property (caps, "flags1")) {
g_warning ("Caps without flags1 property for %s", mimetype);
return;
}
if (!gst_caps_has_property (caps, "flags2")) {
g_warning ("Caps without flags2 property for %s", mimetype);
return;
}
if (gst_caps_has_property (caps, "wmaversion")) {
gint wmaversion = 0;
gint value;
/*
* Rebuild context data from flags1 & flags2
* see wmadec in ffmpeg/libavcodec/wmadec.c
*/
gst_caps_get_int (caps, "wmaversion", &wmaversion);
switch (wmaversion) {
case 1:
context->extradata = (guint8 *) g_malloc0 (4);
gst_caps_get_int (caps, "flags1", &value);
((guint8 *)context->extradata)[0] = value;
gst_caps_get_int (caps, "flags2", &value);
((guint8 *)context->extradata)[2] = value;
context->extradata_size = 4;
break;
case 2:
context->extradata = (guint8 *) g_malloc0 (6);
gst_caps_get_int (caps, "flags1", &value);
((guint8 *) context->extradata)[0] = value;
gst_caps_get_int (caps, "flags2", &value);
((guint8 *) context->extradata)[4] = value;
context->extradata_size = 6;
break;
default:
g_warning ("Unknown wma version %d\n", wmaversion);
break;
}
}
}
}
/* Convert a GstCaps (audio/raw) to a FFMPEG SampleFmt
* and other audio properties in a AVCodecContext.
*
@ -739,15 +798,7 @@ gst_ffmpeg_caps_to_smpfmt (GstCaps *caps,
gst_caps_get_int (caps, "bitrate", &context->bit_rate);
}
if (gst_caps_has_property_typed (caps, "flags1",
GST_PROPS_INT_TYPE)) {
gst_caps_get_int (caps, "flags1", &context->wma_flags1);
}
if (gst_caps_has_property_typed (caps, "flags2",
GST_PROPS_INT_TYPE)) {
gst_caps_get_int (caps, "flags2", &context->wma_flags2);
}
gst_ffmpeg_caps_to_extradata (caps, context);
}