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ext/wavpack/gstwavpackdec.c: Post audio codec and average bitrate tags on bus (#344472).

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Original commit message from CVS:
Patch by: Sebastian Dröge <slomo at circular-chaos.org>
* ext/wavpack/gstwavpackdec.c: (gst_wavpack_dec_post_tags),
(gst_wavpack_dec_chain):
Post audio codec and average bitrate tags on bus (#344472).
* ext/wavpack/gstwavpackparse.c: (gst_wavpack_parse_base_init),
(gst_wavpack_parse_src_query):
Forward queries in other formats (BYTE format in particular)
upstream; add Sebastian to authors.
This commit is contained in:
Sebastian Dröge 2006-08-24 09:24:11 +00:00 committed by Tim-Philipp Müller
parent d7ef60b0c4
commit 424ea70f58
2 changed files with 37 additions and 3 deletions
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31
ext/wavpack/gstwavpackdec.c
View file

@ -236,6 +236,33 @@ gst_wavpack_dec_clip_outgoing_buffer (GstWavpackDec * dec, GstBuffer * buf)
return TRUE;
}
static void
gst_wavpack_dec_post_tags (GstWavpackDec * dec, WavpackHeader * wph)
{
GstTagList *list;
GstFormat format_time = GST_FORMAT_TIME, format_bytes = GST_FORMAT_BYTES;
gint64 duration, size;
list = gst_tag_list_new ();
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_AUDIO_CODEC, "Wavpack", NULL);
/* try to estimate the average bitrate */
if (gst_pad_query_peer_duration (dec->sinkpad, &format_bytes, &size) &&
gst_pad_query_peer_duration (dec->sinkpad, &format_time, &duration) &&
size > 0 && duration > 0) {
guint64 bitrate;
bitrate = gst_util_uint64_scale (size, 8 * GST_SECOND, duration);
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, GST_TAG_BITRATE,
(guint) bitrate, NULL);
}
gst_element_post_message (GST_ELEMENT (dec),
gst_message_new_tag (GST_OBJECT (dec), list));
}
static GstFlowReturn
gst_wavpack_dec_chain (GstPad * pad, GstBuffer * buf)
{
@ -314,6 +341,10 @@ gst_wavpack_dec_chain (GstPad * pad, GstBuffer * buf)
/* should always succeed */
gst_pad_set_caps (dec->srcpad, caps);
gst_caps_unref (caps);
/* send GST_TAG_AUDIO_CODEC and GST_TAG_BITRATE tags before something
* is decoded or after the format has changed */
gst_wavpack_dec_post_tags (dec, &wph);
}
unpacked_size = wph.block_samples * (dec->width / 8) * dec->channels;

9
ext/wavpack/gstwavpackparse.c
View file

@ -97,7 +97,8 @@ gst_wavpack_parse_base_init (gpointer klass)
GST_ELEMENT_DETAILS ("WavePack parser",
"Codec/Demuxer/Audio",
"Parses Wavpack files",
"Arwed v. Merkatz <v.merkatz@gmx.net>");
"Arwed v. Merkatz <v.merkatz@gmx.net>, "
"Sebastian Dröge <slomo@circular-chaos.org>");
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
@ -292,7 +293,8 @@ gst_wavpack_parse_src_query (GstPad * pad, GstQuery * query)
break;
default:
GST_DEBUG_OBJECT (parse, "cannot handle position query in "
"%s format", gst_format_get_name (format));
"%s format. Forwarding upstream.", gst_format_get_name (format));
ret = gst_pad_query_default (pad, query);
break;
}
break;
@ -327,7 +329,8 @@ gst_wavpack_parse_src_query (GstPad * pad, GstQuery * query)
break;
default:
GST_DEBUG_OBJECT (parse, "cannot handle duration query in "
"%s format", gst_format_get_name (format));
"%s format. Forwarding upstream.", gst_format_get_name (format));
ret = gst_pad_query_default (pad, query);
break;
}
break;