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mpegvideoparse: send a video-codec tag

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=569305
This commit is contained in:
Mark Nauwelaerts 2011-09-14 16:14:24 +02:00
parent 00e635e786
commit a31d541f07
2 changed files with 37 additions and 0 deletions
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36
gst/videoparsers/gstmpegvideoparse.c
View file

@ -71,6 +71,8 @@ static gboolean gst_mpegv_parse_check_valid_frame (GstBaseParse * parse,
static GstFlowReturn gst_mpegv_parse_parse_frame (GstBaseParse * parse,
GstBaseParseFrame * frame);
static gboolean gst_mpegv_parse_set_caps (GstBaseParse * parse, GstCaps * caps);
static GstFlowReturn gst_mpegv_parse_pre_push_frame (GstBaseParse * parse,
GstBaseParseFrame * frame);
static void gst_mpegv_parse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -164,6 +166,8 @@ gst_mpegv_parse_class_init (GstMpegvParseClass * klass)
GST_DEBUG_FUNCPTR (gst_mpegv_parse_check_valid_frame);
parse_class->parse_frame = GST_DEBUG_FUNCPTR (gst_mpegv_parse_parse_frame);
parse_class->set_sink_caps = GST_DEBUG_FUNCPTR (gst_mpegv_parse_set_caps);
parse_class->pre_push_frame =
GST_DEBUG_FUNCPTR (gst_mpegv_parse_pre_push_frame);
}
static void
@ -187,6 +191,7 @@ gst_mpegv_parse_reset (GstMpegvParse * mpvparse)
gst_mpegv_parse_reset_frame (mpvparse);
mpvparse->profile = 0;
mpvparse->update_caps = TRUE;
mpvparse->send_codec_tag = TRUE;
gst_buffer_replace (&mpvparse->config, NULL);
memset (&mpvparse->sequencehdr, 0, sizeof (mpvparse->sequencehdr));
@ -653,6 +658,37 @@ gst_mpegv_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
return GST_FLOW_OK;
}
static GstFlowReturn
gst_mpegv_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
{
GstMpegvParse *mpvparse = GST_MPEGVIDEO_PARSE (parse);
GstTagList *taglist;
/* tag sending done late enough in hook to ensure pending events
* have already been sent */
if (G_UNLIKELY (mpvparse->send_codec_tag)) {
gchar *codec;
/* codec tag */
codec = g_strdup_printf ("MPEG %d Video", mpvparse->mpeg_version);
taglist = gst_tag_list_new ();
gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, codec, NULL);
g_free (codec);
gst_element_found_tags_for_pad (GST_ELEMENT (mpvparse),
GST_BASE_PARSE_SRC_PAD (mpvparse), taglist);
mpvparse->send_codec_tag = FALSE;
}
/* usual clipping applies */
frame->flags |= GST_BASE_PARSE_FRAME_FLAG_CLIP;
return GST_FLOW_OK;
}
static gboolean
gst_mpegv_parse_set_caps (GstBaseParse * parse, GstCaps * caps)
{

1
gst/videoparsers/gstmpegvideoparse.h
View file

@ -56,6 +56,7 @@ struct _GstMpegvParse {
gint seq_offset;
gint pic_offset;
gboolean update_caps;
gboolean send_codec_tag;
GstBuffer *config;
guint8 profile;