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[MOVED FROM BAD 06/57] gst/flv/: Handle pixel aspect ratio through metadata tags like ASF does. Fluendo muxer supports this and

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Original commit message from CVS:
2007-08-22  Julien MOUTTE  <julien@moutte.net>

* gst/flv/gstflvdemux.c: (gst_flv_demux_cleanup),
(gst_flv_demux_pull_tag):
* gst/flv/gstflvdemux.h:
* gst/flv/gstflvparse.c: (gst_flv_parse_metadata_item),
(gst_flv_parse_tag_script), (gst_flv_parse_tag_audio),
(gst_flv_parse_tag_video): Handle pixel aspect ratio through
metadata tags like ASF does. Fluendo muxer supports this and
Flash players can support it as well this way.
This commit is contained in:
Julien Moutte 2007-08-22 14:50:51 +00:00 committed by Sebastian Dröge
parent 8f0627ea08
commit 5d7f2cf4fa
3 changed files with 28 additions and 1 deletions
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3
gst/flv/gstflvdemux.c
View file

@ -90,7 +90,10 @@ gst_flv_demux_cleanup (GstFLVDemux * demux)
demux->has_audio = FALSE;
demux->has_video = FALSE;
demux->push_tags = FALSE;
demux->got_par = FALSE;
demux->w = demux->h = 0;
demux->par_x = demux->par_y = 1;
demux->video_offset = 0;
demux->audio_offset = 0;
demux->offset = demux->cur_tag_offset = 0;

3
gst/flv/gstflvdemux.h
View file

@ -92,11 +92,14 @@ struct _GstFLVDemux
/* Video infos */
guint32 w;
guint32 h;
guint32 par_x;
guint32 par_y;
guint16 video_codec_tag;
guint64 video_offset;
gboolean video_need_discont;
gboolean video_need_segment;
gboolean video_linked;
gboolean got_par;
gboolean random_access;
gboolean need_header;

23
gst/flv/gstflvparse.c
View file

@ -123,6 +123,13 @@ gst_flv_parse_metadata_item (GstFLVDemux * demux, const guint8 * data,
GST_TAG_DURATION, demux->duration, NULL);
} else {
if (tag_name) {
if (!strcmp (tag_name, "AspectRatioX")) {
demux->par_x = value_union.value_double;
demux->got_par = TRUE;
} else if (!strcmp (tag_name, "AspectRatioY")) {
demux->par_y = value_union.value_double;
demux->got_par = TRUE;
}
if (!gst_tag_exists (tag_name)) {
gst_tag_register (tag_name, GST_TAG_FLAG_META, G_TYPE_DOUBLE,
tag_name, tag_name, gst_tag_merge_use_first);
@ -718,6 +725,13 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
goto beach;
}
gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
demux->par_x, demux->par_y, NULL);
/* When we ve set pixel-aspect-ratio we use that boolean to detect a
* metadata tag that would come later and trigger a caps change */
demux->got_par = FALSE;
gst_pad_set_caps (demux->video_pad, caps);
GST_DEBUG_OBJECT (demux, "created video pad with caps %" GST_PTR_FORMAT,
@ -751,7 +765,7 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
}
/* Check if caps have changed */
if (G_UNLIKELY (codec_tag != demux->video_codec_tag)) {
if (G_UNLIKELY (codec_tag != demux->video_codec_tag || demux->got_par)) {
GstCaps *caps = NULL;
GST_DEBUG_OBJECT (demux, "video settings have changed, changing caps");
@ -780,6 +794,13 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
goto beach;
}
gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
demux->par_x, demux->par_y, NULL);
/* When we ve set pixel-aspect-ratio we use that boolean to detect a
* metadata tag that would come later and trigger a caps change */
demux->got_par = FALSE;
gst_pad_set_caps (demux->video_pad, caps);
gst_caps_unref (caps);