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sbcparse: Post AUDIO_CODEC tag

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This commit is contained in:
Sebastian Dröge 2013-12-16 10:00:37 +01:00
parent 05e196cbb6
commit 753d3c23a2
2 changed files with 36 additions and 4 deletions
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38
gst/audioparsers/gstsbcparse.c
View file

@ -40,9 +40,8 @@
#include <string.h>
#include <gst/tag/tag.h>
#include <gst/audio/audio.h>
#include <gst/base/gstbitreader.h>
#include <gst/base/gstbytereader.h>
#include <gst/base/base.h>
#include <gst/pbutils/pbutils.h>
#define SBC_SYNCBYTE 0x9C
@ -67,6 +66,8 @@ static gboolean gst_sbc_parse_start (GstBaseParse * parse);
static gboolean gst_sbc_parse_stop (GstBaseParse * parse);
static GstFlowReturn gst_sbc_parse_handle_frame (GstBaseParse * parse,
GstBaseParseFrame * frame, gint * skipsize);
static GstFlowReturn gst_sbc_parse_pre_push_frame (GstBaseParse * parse,
GstBaseParseFrame * frame);
static GstCaps *gst_sbc_parse_get_sink_caps (GstBaseParse * parse,
GstCaps * filter);
@ -90,7 +91,8 @@ gst_sbc_parse_class_init (GstSbcParseClass * klass)
baseparse_class->start = GST_DEBUG_FUNCPTR (gst_sbc_parse_start);
baseparse_class->stop = GST_DEBUG_FUNCPTR (gst_sbc_parse_stop);
baseparse_class->pre_push_frame =
GST_DEBUG_FUNCPTR (gst_sbc_parse_pre_push_frame);
baseparse_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_sbc_parse_handle_frame);
baseparse_class->get_sink_caps =
@ -115,6 +117,7 @@ gst_sbc_parse_reset (GstSbcParse * sbcparse)
sbcparse->n_blocks = -1;
sbcparse->n_subbands = -1;
sbcparse->bitpool = -1;
sbcparse->sent_codec_tag = FALSE;
}
static void
@ -493,3 +496,30 @@ gst_sbc_parse_header (const guint8 * data, guint * rate, guint * n_blocks,
return gst_sbc_calc_framelen (*n_subbands, *ch_mode, *n_blocks, *bitpool);
}
static GstFlowReturn
gst_sbc_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
{
GstSbcParse *sbcparse = GST_SBC_PARSE (parse);
if (!sbcparse->sent_codec_tag) {
GstTagList *taglist;
GstCaps *caps;
taglist = gst_tag_list_new_empty ();
/* codec tag */
caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (parse));
gst_pb_utils_add_codec_description_to_tag_list (taglist,
GST_TAG_AUDIO_CODEC, caps);
gst_caps_unref (caps);
gst_pad_push_event (GST_BASE_PARSE_SRC_PAD (sbcparse),
gst_event_new_tag (taglist));
/* also signals the end of first-frame processing */
sbcparse->sent_codec_tag = TRUE;
}
return GST_FLOW_OK;
}

2
gst/audioparsers/gstsbcparse.h
View file

@ -61,6 +61,8 @@ struct _GstSbcParse {
gint n_blocks;
gint n_subbands;
gint bitpool;
gboolean sent_codec_tag;
};
struct _GstSbcParseClass {