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mpegdemux: Parse mpeg audio layer version and add to caps.

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This commit is contained in:
Doug Nazar 2019-08-03 05:28:33 -04:00 committed by Sebastian Dröge
parent 341a800954
commit 6c552030f7
1 changed files with 41 additions and 12 deletions
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53
gst/mpegdemux/gstmpegdemux.c
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@ -348,7 +348,8 @@ gst_ps_demux_reset (GstPsDemux * demux)
}
static GstPsStream *
gst_ps_demux_create_stream (GstPsDemux * demux, gint id, gint stream_type)
gst_ps_demux_create_stream (GstPsDemux * demux, gint id, gint stream_type,
gint layer)
{
GstPsStream *stream;
GstPadTemplate *template;
@ -394,8 +395,13 @@ gst_ps_demux_create_stream (GstPsDemux * demux, gint id, gint stream_type)
case ST_AUDIO_MPEG2:
template = klass->audio_template;
name = g_strdup_printf ("audio_%02x", id);
caps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1, NULL);
if (layer) {
caps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1, "layer", G_TYPE_INT, layer, NULL);
} else {
caps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1, NULL);
}
break;
case ST_PRIVATE_SECTIONS:
case ST_PRIVATE_DATA:
@ -525,12 +531,12 @@ gst_ps_demux_create_stream (GstPsDemux * demux, gint id, gint stream_type)
}
static GstPsStream *
gst_ps_demux_get_stream (GstPsDemux * demux, gint id, gint type)
gst_ps_demux_get_stream (GstPsDemux * demux, gint id, gint type, gint layer)
{
GstPsStream *stream = demux->streams[id];
if (stream == NULL) {
if (!(stream = gst_ps_demux_create_stream (demux, id, type)))
if (!(stream = gst_ps_demux_create_stream (demux, id, type, layer)))
goto unknown_stream;
GST_DEBUG_OBJECT (demux, "adding pad for stream id 0x%02x type 0x%02x", id,
@ -771,7 +777,7 @@ gst_ps_demux_handle_dvd_event (GstPsDemux * demux, GstEvent * event)
GST_DEBUG_OBJECT (demux, "Handling language codes event");
/* Create a video pad to ensure have it before emit no more pads */
(void) gst_ps_demux_get_stream (demux, 0xe0, ST_VIDEO_MPEG2);
(void) gst_ps_demux_get_stream (demux, 0xe0, ST_VIDEO_MPEG2, 0);
/* Read out the languages for audio streams and request each one that
* is present */
@ -796,7 +802,7 @@ gst_ps_demux_handle_dvd_event (GstPsDemux * demux, GstEvent * event)
GST_DEBUG_OBJECT (demux,
"Audio stream %d format %d ID 0x%02x - AC3", i,
stream_format, stream_id);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_PS_AUDIO_AC3);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_PS_AUDIO_AC3, 0);
break;
case 0x2:
case 0x3:
@ -806,7 +812,7 @@ gst_ps_demux_handle_dvd_event (GstPsDemux * demux, GstEvent * event)
GST_DEBUG_OBJECT (demux,
"Audio stream %d format %d ID 0x%02x - MPEG audio", i,
stream_format, stream_id);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_AUDIO_MPEG1);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_AUDIO_MPEG1, 0);
break;
case 0x4:
/* LPCM */
@ -814,7 +820,8 @@ gst_ps_demux_handle_dvd_event (GstPsDemux * demux, GstEvent * event)
GST_DEBUG_OBJECT (demux,
"Audio stream %d format %d ID 0x%02x - DVD LPCM", i,
stream_format, stream_id);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_PS_AUDIO_LPCM);
temp =
gst_ps_demux_get_stream (demux, stream_id, ST_PS_AUDIO_LPCM, 0);
break;
case 0x6:
/* DTS */
@ -822,7 +829,7 @@ gst_ps_demux_handle_dvd_event (GstPsDemux * demux, GstEvent * event)
GST_DEBUG_OBJECT (demux,
"Audio stream %d format %d ID 0x%02x - DTS", i,
stream_format, stream_id);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_PS_AUDIO_DTS);
temp = gst_ps_demux_get_stream (demux, stream_id, ST_PS_AUDIO_DTS, 0);
break;
case 0x7:
/* FIXME: What range is SDDS? */
@ -869,7 +876,7 @@ gst_ps_demux_handle_dvd_event (GstPsDemux * demux, GstEvent * event)
/* Retrieve the subpicture stream to force pad creation */
temp = gst_ps_demux_get_stream (demux, 0x20 + stream_id,
ST_PS_DVD_SUBPICTURE);
ST_PS_DVD_SUBPICTURE, 0);
if (temp == NULL)
continue;
@ -2222,6 +2229,7 @@ gst_ps_demux_data_cb (GstPESFilter * filter, gboolean first,
start_code = filter->start_code;
id = filter->id;
if (first) {
gint layer = 0;
/* find the stream type */
stream_type = demux->psm[id];
if (stream_type == -1) {
@ -2265,7 +2273,27 @@ gst_ps_demux_data_cb (GstPESFilter * filter, gboolean first,
}
if (stream_type == -1)
goto unknown_stream_type;
} else if (stream_type == ST_AUDIO_MPEG1 || stream_type == ST_AUDIO_MPEG2) {
if (datalen >= 2) {
guint hdr = GST_READ_UINT16_BE (map.data);
if ((hdr & 0xfff0) == 0xfff0) {
switch (hdr & 0x06) {
case 0x6:
layer = 1;
break;
case 0x4:
layer = 2;
break;
case 0x2:
layer = 3;
break;
default:
GST_WARNING_OBJECT (demux, "unknown mpeg audio layer");
}
}
}
}
if (filter->pts != -1) {
demux->next_pts = filter->pts + demux->scr_adjust;
GST_LOG_OBJECT (demux, "stream 0x%02x PTS = orig %" G_GUINT64_FORMAT
@ -2280,7 +2308,8 @@ gst_ps_demux_data_cb (GstPESFilter * filter, gboolean first,
demux->next_dts = demux->next_pts;
}
demux->current_stream = gst_ps_demux_get_stream (demux, id, stream_type);
demux->current_stream =
gst_ps_demux_get_stream (demux, id, stream_type, layer);
}
if (G_UNLIKELY (demux->current_stream == NULL)) {