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wavparse: Add tags for container format and bitrate for uncompressed PCM
The PCM bitrate is added to help downstream elements (like uridecodebin) figure out a proper network buffer size https://bugzilla.gnome.org/show_bug.cgi?id=769390
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c703ab69f5
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2 changed files with 19 additions and 1 deletions
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@ -10,6 +10,7 @@ libgstwavparse_la_LIBADD = \
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-lgstriff-@GST_API_VERSION@ \
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-lgstaudio-@GST_API_VERSION@ \
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-lgsttag-@GST_API_VERSION@ \
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-lgstpbutils-@GST_API_VERSION@ \
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$(GST_BASE_LIBS) \
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$(GST_LIBS) \
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$(LIBM)
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@ -54,6 +54,7 @@
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#include "gstwavparse.h"
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#include "gst/riff/riff-media.h"
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#include <gst/base/gsttypefindhelper.h>
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#include <gst/pbutils/descriptions.h>
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#include <gst/gst-i18n-plugin.h>
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GST_DEBUG_CATEGORY_STATIC (wavparse_debug);
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@ -1223,9 +1224,25 @@ gst_wavparse_stream_headers (GstWavParse * wav)
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wav->got_fmt = TRUE;
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if (codec_name) {
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if (wav->tags == NULL)
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wav->tags = gst_tag_list_new_empty ();
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{
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GstCaps *templ_caps = gst_pad_get_pad_template_caps (wav->sinkpad);
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gst_pb_utils_add_codec_description_to_tag_list (wav->tags,
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GST_TAG_CONTAINER_FORMAT, templ_caps);
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gst_caps_unref (templ_caps);
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}
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/* If bps is nonzero, then we do have a valid bitrate that can be
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* announced in a tag list. */
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if (wav->bps) {
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guint bitrate = wav->bps * 8;
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gst_tag_list_add (wav->tags, GST_TAG_MERGE_REPLACE,
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GST_TAG_BITRATE, bitrate, NULL);
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}
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if (codec_name) {
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gst_tag_list_add (wav->tags, GST_TAG_MERGE_REPLACE,
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GST_TAG_AUDIO_CODEC, codec_name, NULL);
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