From 424ea70f585877e4b479a9107b792c97c2856c4d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Thu, 24 Aug 2006 09:24:11 +0000 Subject: [PATCH] ext/wavpack/gstwavpackdec.c: Post audio codec and average bitrate tags on bus (#344472). MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Original commit message from CVS: Patch by: Sebastian Dröge * 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. --- ext/wavpack/gstwavpackdec.c | 31 +++++++++++++++++++++++++++++++ ext/wavpack/gstwavpackparse.c | 9 ++++++--- 2 files changed, 37 insertions(+), 3 deletions(-) diff --git a/ext/wavpack/gstwavpackdec.c b/ext/wavpack/gstwavpackdec.c index 1962c9b9a7..88074e8083 100644 --- a/ext/wavpack/gstwavpackdec.c +++ b/ext/wavpack/gstwavpackdec.c @@ -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; diff --git a/ext/wavpack/gstwavpackparse.c b/ext/wavpack/gstwavpackparse.c index d252ccfb5e..30a5d78d84 100644 --- a/ext/wavpack/gstwavpackparse.c +++ b/ext/wavpack/gstwavpackparse.c @@ -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 "); + "Arwed v. Merkatz , " + "Sebastian Dröge "); 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;