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ffmpeg: add support for G721

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Add support for g721, which is like G726 but with 1 channel, 8KHz and a bitrate
of 32000.

Fixes #594454
This commit is contained in:
Wim Taymans 2009-09-09 13:33:53 +02:00
parent 595de04316
commit 669a0e359a
1 changed files with 34 additions and 6 deletions
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40
ext/ffmpeg/gstffmpegcodecmap.c
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@ -309,7 +309,6 @@ gst_ff_vid_caps_new (AVCodecContext * context, enum CodecID codec_id,
/* same for audio - now with channels/sample rate
*/
static GstCaps *
gst_ff_aud_caps_new (AVCodecContext * context, enum CodecID codec_id,
const char *mimetype, const char *fieldname, ...)
@ -1165,6 +1164,23 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
caps = gst_ff_aud_caps_new (context, codec_id, "audio/x-alaw", NULL);
break;
case CODEC_ID_ADPCM_G726:
{
/* the G726 decoder can also handle G721 */
caps = gst_ff_aud_caps_new (context, codec_id, "audio/x-adpcm",
"layout", G_TYPE_STRING, "g726", NULL);
if (context)
gst_caps_set_simple (caps,
"block_align", G_TYPE_INT, context->block_align,
"bitrate", G_TYPE_INT, context->bit_rate, NULL);
if (!encode) {
gst_caps_append (caps, gst_caps_new_simple ("audio/x-adpcm",
"layout", G_TYPE_STRING, "g721",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL));
}
break;
}
case CODEC_ID_ADPCM_IMA_QT:
case CODEC_ID_ADPCM_IMA_WAV:
case CODEC_ID_ADPCM_IMA_DK3:
@ -1180,7 +1196,6 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
case CODEC_ID_ADPCM_XA:
case CODEC_ID_ADPCM_ADX:
case CODEC_ID_ADPCM_EA:
case CODEC_ID_ADPCM_G726:
case CODEC_ID_ADPCM_CT:
case CODEC_ID_ADPCM_SWF:
case CODEC_ID_ADPCM_YAMAHA:
@ -1242,9 +1257,6 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
case CODEC_ID_ADPCM_EA:
layout = "ea";
break;
case CODEC_ID_ADPCM_G726:
layout = "g726";
break;
case CODEC_ID_ADPCM_CT:
layout = "ct";
break;
@ -1794,6 +1806,7 @@ gst_ffmpeg_caps_to_smpfmt (const GstCaps * caps,
GstStructure *structure;
gint depth = 0, width = 0, endianness = 0;
gboolean signedness = FALSE;
const gchar *name;
g_return_if_fail (gst_caps_get_size (caps) == 1);
structure = gst_caps_get_structure (caps, 0);
@ -1806,7 +1819,9 @@ gst_ffmpeg_caps_to_smpfmt (const GstCaps * caps,
if (!raw)
return;
if (!strcmp (gst_structure_get_name (structure), "audio/x-raw-float")) {
name = gst_structure_get_name (structure);
if (!strcmp (name, "audio/x-raw-float")) {
/* FLOAT */
if (gst_structure_get_int (structure, "width", &width) &&
gst_structure_get_int (structure, "endianness", &endianness)) {
@ -2273,7 +2288,18 @@ gst_ffmpeg_caps_with_codecid (enum CodecID codec_id,
}
}
case CODEC_ID_ADPCM_G726:
{
const gchar *layout;
if ((layout = gst_structure_get_string (str, "layout"))) {
if (!strcmp (layout, "g721")) {
context->sample_rate = 8000;
context->channels = 1;
context->bit_rate = 32000;
}
}
break;
}
default:
break;
}
@ -2925,6 +2951,8 @@ gst_ffmpeg_caps_to_codecid (const GstCaps * caps, AVCodecContext * context)
id = CODEC_ID_ADPCM_EA;
} else if (!strcmp (layout, "g726")) {
id = CODEC_ID_ADPCM_G726;
} else if (!strcmp (layout, "g721")) {
id = CODEC_ID_ADPCM_G726;
} else if (!strcmp (layout, "ct")) {
id = CODEC_ID_ADPCM_CT;
} else if (!strcmp (layout, "swf")) {