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gst/qtdemux/qtdemux.c: Figure out the real audio type in mp4a boxes by parsing the optional descriptors in the option...

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Original commit message from CVS:
* gst/qtdemux/qtdemux.c: (qtdemux_parse), (qtdemux_parse_trak),
(gst_qtdemux_handle_esds):
Figure out the real audio type in mp4a boxes by parsing the
optional descriptors in the optional esds box. Promote the
default AAC to mp3 when indicated. Fixes #330632.
This commit is contained in:
Wim Taymans 2006-05-11 09:09:49 +00:00
parent a5ed322de1
commit a3c4acecbd
1 changed files with 24 additions and 6 deletions
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30
gst/qtdemux/qtdemux.c
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@ -302,7 +302,7 @@ static void qtdemux_tag_add_gnre (GstQTDemux * qtdemux, const char *tag,
GNode * node);
static void gst_qtdemux_handle_esds (GstQTDemux * qtdemux,
QtDemuxStream * stream, GNode * esds);
QtDemuxStream * stream, GNode * esds, GstTagList * list);
static GstCaps *qtdemux_video_caps (GstQTDemux * qtdemux, guint32 fourcc,
const guint8 * stsd_data, const gchar ** codec_name);
static GstCaps *qtdemux_audio_caps (GstQTDemux * qtdemux,
@ -2225,6 +2225,8 @@ qtdemux_parse (GstQTDemux * qtdemux, GNode * node, void *buffer, int length)
buf += len;
}
} else {
GST_WARNING ("unhandled mp4a version 0x%08x", version);
}
} else if (fourcc == FOURCC_mp4v) {
void *buf;
@ -3063,7 +3065,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
esds = qtdemux_tree_get_child_by_type (mp4v, FOURCC_esds);
if (esds) {
gst_qtdemux_handle_esds (qtdemux, stream, esds);
gst_qtdemux_handle_esds (qtdemux, stream, esds, list);
} else {
if (QTDEMUX_FOURCC_GET ((char *) stsd->data + 16 + 4) ==
GST_MAKE_FOURCC ('a', 'v', 'c', '1')) {
@ -3258,7 +3260,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
}
if (esds) {
gst_qtdemux_handle_esds (qtdemux, stream, esds);
gst_qtdemux_handle_esds (qtdemux, stream, esds, list);
} else {
if (QTDEMUX_FOURCC_GET (stsd->data + 16 + 4) ==
GST_MAKE_FOURCC ('Q', 'D', 'M', '2')) {
@ -3787,9 +3789,10 @@ get_size (guint8 * ptr, guint8 ** end)
return len;
}
/* this can change the codec originally present in @list */
static void
gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
GNode * esds)
GNode * esds, GstTagList * list)
{
int len = QTDEMUX_GUINT32_GET (esds->data);
guint8 *ptr = esds->data;
@ -3797,6 +3800,7 @@ gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
int tag;
guint8 *data_ptr = NULL;
int data_len = 0;
guint8 object_type_id = 0;
qtdemux_dump_mem (ptr, len);
ptr += 8;
@ -3817,8 +3821,8 @@ gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
ptr += 3;
break;
case 0x04:
GST_DEBUG_OBJECT (qtdemux, "object_type_id %02x",
QTDEMUX_GUINT8_GET (ptr));
object_type_id = QTDEMUX_GUINT8_GET (ptr);
GST_DEBUG_OBJECT (qtdemux, "object_type_id %02x", object_type_id);
GST_DEBUG_OBJECT (qtdemux, "stream_type %02x",
QTDEMUX_GUINT8_GET (ptr + 1));
GST_DEBUG_OBJECT (qtdemux, "buffer_size_db %02x",
@ -3856,6 +3860,20 @@ gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
buffer, NULL);
gst_buffer_unref (buffer);
}
/* object_type_id in the stsd atom in mp4a tells us about AAC or plain
* MPEG audio */
switch (object_type_id) {
case 107:
/* change to mpeg1 layer 3 audio */
gst_caps_set_simple (stream->caps, "layer", G_TYPE_INT, 3,
"mpegversion", G_TYPE_INT, 1, NULL);
if (list)
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_AUDIO_CODEC, "MPEG-1 layer 3", NULL);
break;
default:
break;
}
}
#define _codec(name) \