diff options
Diffstat (limited to 'ext/taglib')
-rw-r--r-- | ext/taglib/gsttaglib.cc | 184 | ||||
-rw-r--r-- | ext/taglib/gsttaglib.h | 20 |
2 files changed, 104 insertions, 100 deletions
diff --git a/ext/taglib/gsttaglib.cc b/ext/taglib/gsttaglib.cc index affcb600..abb3e1e0 100644 --- a/ext/taglib/gsttaglib.cc +++ b/ext/taglib/gsttaglib.cc @@ -37,7 +37,12 @@ * Here is a simple pipeline that transcodes a file from Ogg/Vorbis to mp3 * format with an ID3v2 that contains the same as the the Ogg/Vorbis file: * <programlisting> - * gst-launch -v filesrc location=foo.ogg ! decodebin ! audioconvert ! lame ! tagid3v2mux ! filesink location=foo.mp3 + * gst-launch -v filesrc location=foo.ogg ! decodebin ! audioconvert ! lame ! id3v2mux ! filesink location=foo.mp3 + * </programlisting> + * Make sure the Ogg/Vorbis file actually has comments to preserve. + * You can verify the tags were written using: + * <programlisting> + * gst-launch -m filesrc location=foo.mp3 ! id3demux ! fakesink silent=TRUE 2¨ /dev/null | grep taglist * </programlisting> * </para> * </refsect2> @@ -64,7 +69,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_tag_lib_mux_debug); static const GstElementDetails gst_tag_lib_mux_details = GST_ELEMENT_DETAILS ("TagLib ID3v2 Muxer", "Formatter/Metadata", - "Adds an ID3v2 header to the beginning of MP3 files", + "Adds an ID3v2 header to the beginning of MP3 files using taglib", "Christophe Fergeau <teuf@gnome.org>"); static GstStaticPadTemplate gst_tag_lib_mux_sink_template = @@ -106,16 +111,16 @@ static gboolean gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event); static void gst_tag_lib_mux_finalize (GObject * obj) { - GstTagLibMux *taglib = GST_TAGLIB_MUX (obj); + GstTagLibMux *mux = GST_TAG_LIB_MUX (obj); - if (taglib->newsegment_ev) { - gst_event_unref (taglib->newsegment_ev); - taglib->newsegment_ev = NULL; + if (mux->newsegment_ev) { + gst_event_unref (mux->newsegment_ev); + mux->newsegment_ev = NULL; } - if (taglib->event_tags) { - gst_tag_list_free (taglib->event_tags); - taglib->event_tags = NULL; + if (mux->event_tags) { + gst_tag_list_free (mux->event_tags); + mux->event_tags = NULL; } G_OBJECT_CLASS (parent_class)->finalize (obj); @@ -148,29 +153,28 @@ gst_tag_lib_mux_class_init (GstTagLibMuxClass * klass) } static void -gst_tag_lib_mux_init (GstTagLibMux * taglib, - GstTagLibMuxClass * taglibmux_class) +gst_tag_lib_mux_init (GstTagLibMux * mux, GstTagLibMuxClass * muxmux_class) { GstCaps *srccaps; /* pad through which data comes in to the element */ - taglib->sinkpad = + mux->sinkpad = gst_pad_new_from_static_template (&gst_tag_lib_mux_sink_template, "sink"); - gst_pad_set_chain_function (taglib->sinkpad, + gst_pad_set_chain_function (mux->sinkpad, GST_DEBUG_FUNCPTR (gst_tag_lib_mux_chain)); - gst_pad_set_event_function (taglib->sinkpad, + gst_pad_set_event_function (mux->sinkpad, GST_DEBUG_FUNCPTR (gst_tag_lib_mux_sink_event)); - gst_element_add_pad (GST_ELEMENT (taglib), taglib->sinkpad); + gst_element_add_pad (GST_ELEMENT (mux), mux->sinkpad); /* pad through which data goes out of the element */ - taglib->srcpad = + mux->srcpad = gst_pad_new_from_static_template (&gst_tag_lib_mux_src_template, "src"); srccaps = gst_static_pad_template_get_caps (&gst_tag_lib_mux_src_template); - gst_pad_use_fixed_caps (taglib->srcpad); - gst_pad_set_caps (taglib->srcpad, srccaps); - gst_element_add_pad (GST_ELEMENT (taglib), taglib->srcpad); + gst_pad_use_fixed_caps (mux->srcpad); + gst_pad_set_caps (mux->srcpad, srccaps); + gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad); - taglib->render_tag = TRUE; + mux->render_tag = TRUE; } static void @@ -383,18 +387,18 @@ add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data) } static GstBuffer * -gst_tag_lib_mux_render_tag (GstTagLibMux * taglib) +gst_tag_lib_mux_render_tag (GstTagLibMux * mux) { ID3v2::Tag id3v2tag; ByteVector rendered_tag; GstBuffer *buffer; - GstTagSetter *tagsetter = GST_TAG_SETTER (taglib); + GstTagSetter *tagsetter = GST_TAG_SETTER (mux); const GstTagList *tagsetter_tags; GstTagList *taglist; GstEvent *event; - if (taglib->event_tags != NULL) { - taglist = gst_tag_list_copy (taglib->event_tags); + if (mux->event_tags != NULL) { + taglist = gst_tag_list_copy (mux->event_tags); } else { taglist = gst_tag_list_new (); } @@ -404,36 +408,36 @@ gst_tag_lib_mux_render_tag (GstTagLibMux * taglib) GstTagMergeMode merge_mode; merge_mode = gst_tag_setter_get_tag_merge_mode (tagsetter); - GST_LOG_OBJECT (taglib, "merging tags, merge mode = %d", merge_mode); - GST_LOG_OBJECT (taglib, "event tags: %" GST_PTR_FORMAT, taglist); - GST_LOG_OBJECT (taglib, "set tags: %" GST_PTR_FORMAT, tagsetter_tags); + GST_LOG_OBJECT (mux, "merging tags, merge mode = %d", merge_mode); + GST_LOG_OBJECT (mux, "event tags: %" GST_PTR_FORMAT, taglist); + GST_LOG_OBJECT (mux, "set tags: %" GST_PTR_FORMAT, tagsetter_tags); gst_tag_list_insert (taglist, tagsetter_tags, merge_mode); } - GST_LOG_OBJECT (taglib, "final tags: %" GST_PTR_FORMAT, taglist); + GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, taglist); /* Render the tag */ gst_tag_list_foreach (taglist, add_one_tag, &id3v2tag); rendered_tag = id3v2tag.render (); - taglib->tag_size = rendered_tag.size (); + mux->tag_size = rendered_tag.size (); - GST_LOG_OBJECT (taglib, "tag size = %d bytes", taglib->tag_size); + GST_LOG_OBJECT (mux, "tag size = %d bytes", mux->tag_size); /* Create buffer with tag */ - buffer = gst_buffer_new_and_alloc (taglib->tag_size); - memcpy (GST_BUFFER_DATA (buffer), rendered_tag.data (), taglib->tag_size); - gst_buffer_set_caps (buffer, GST_PAD_CAPS (taglib->srcpad)); + buffer = gst_buffer_new_and_alloc (mux->tag_size); + memcpy (GST_BUFFER_DATA (buffer), rendered_tag.data (), mux->tag_size); + gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->srcpad)); /* Send newsegment event from byte position 0, so the tag really gets * written to the start of the file, independent of the upstream segment */ - gst_pad_push_event (taglib->srcpad, + gst_pad_push_event (mux->srcpad, gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0)); /* Send an event about the new tags to downstream elements */ /* gst_event_new_tag takes ownership of the list, so no need to unref it */ event = gst_event_new_tag (taglist); - gst_pad_push_event (taglib->srcpad, event); + gst_pad_push_event (mux->srcpad, event); GST_BUFFER_OFFSET (buffer) = 0; @@ -441,7 +445,7 @@ gst_tag_lib_mux_render_tag (GstTagLibMux * taglib) } static GstEvent * -gst_tag_lib_mux_adjust_event_offsets (GstTagLibMux * taglib, +gst_tag_lib_mux_adjust_event_offsets (GstTagLibMux * mux, const GstEvent * newsegment_event) { GstFormat format; @@ -453,15 +457,15 @@ gst_tag_lib_mux_adjust_event_offsets (GstTagLibMux * taglib, g_assert (format == GST_FORMAT_BYTES); if (start != -1) - start += taglib->tag_size; + start += mux->tag_size; if (stop != -1) - stop += taglib->tag_size; + stop += mux->tag_size; if (cur != -1) - cur += taglib->tag_size; + cur += mux->tag_size; - GST_DEBUG_OBJECT (taglib, "adjusting newsegment event offsets to start=%" + GST_DEBUG_OBJECT (mux, "adjusting newsegment event offsets to start=%" G_GINT64_FORMAT ", stop=%" G_GINT64_FORMAT ", cur=%" G_GINT64_FORMAT - " (delta = +%u)", start, stop, cur, taglib->tag_size); + " (delta = +%u)", start, stop, cur, mux->tag_size); return gst_event_new_new_segment (TRUE, 1.0, format, start, stop, cur); } @@ -469,53 +473,53 @@ gst_tag_lib_mux_adjust_event_offsets (GstTagLibMux * taglib, static GstFlowReturn gst_tag_lib_mux_chain (GstPad * pad, GstBuffer * buffer) { - GstTagLibMux *taglib = GST_TAGLIB_MUX (GST_OBJECT_PARENT (pad)); + GstTagLibMux *mux = GST_TAG_LIB_MUX (GST_OBJECT_PARENT (pad)); - if (taglib->render_tag) { + if (mux->render_tag) { GstFlowReturn ret; - GST_INFO_OBJECT (taglib, "Adding tags to stream"); - ret = gst_pad_push (taglib->srcpad, gst_tag_lib_mux_render_tag (taglib)); + GST_INFO_OBJECT (mux, "Adding tags to stream"); + ret = gst_pad_push (mux->srcpad, gst_tag_lib_mux_render_tag (mux)); if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (taglib, "flow: %s", gst_flow_get_name (ret)); + GST_DEBUG_OBJECT (mux, "flow: %s", gst_flow_get_name (ret)); gst_buffer_unref (buffer); return ret; } /* Now send the cached newsegment event that we got from upstream */ - if (taglib->newsegment_ev) { - GST_DEBUG_OBJECT (taglib, "sending cached newsegment event"); - gst_pad_push_event (taglib->srcpad, - gst_tag_lib_mux_adjust_event_offsets (taglib, taglib->newsegment_ev)); - gst_event_unref (taglib->newsegment_ev); - taglib->newsegment_ev = NULL; + if (mux->newsegment_ev) { + GST_DEBUG_OBJECT (mux, "sending cached newsegment event"); + gst_pad_push_event (mux->srcpad, + gst_tag_lib_mux_adjust_event_offsets (mux, mux->newsegment_ev)); + gst_event_unref (mux->newsegment_ev); + mux->newsegment_ev = NULL; } else { /* upstream sent no newsegment event or only one in a non-BYTE format */ } - taglib->render_tag = FALSE; + mux->render_tag = FALSE; } buffer = gst_buffer_make_metadata_writable (buffer); if (GST_BUFFER_OFFSET (buffer) != GST_BUFFER_OFFSET_NONE) { - GST_LOG_OBJECT (taglib, "Adjusting buffer offset from %" G_GINT64_FORMAT + GST_LOG_OBJECT (mux, "Adjusting buffer offset from %" G_GINT64_FORMAT " to %" G_GINT64_FORMAT, GST_BUFFER_OFFSET (buffer), - GST_BUFFER_OFFSET (buffer) + taglib->tag_size); - GST_BUFFER_OFFSET (buffer) += taglib->tag_size; + GST_BUFFER_OFFSET (buffer) + mux->tag_size); + GST_BUFFER_OFFSET (buffer) += mux->tag_size; } - gst_buffer_set_caps (buffer, GST_PAD_CAPS (taglib->srcpad)); - return gst_pad_push (taglib->srcpad, buffer); + gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->srcpad)); + return gst_pad_push (mux->srcpad, buffer); } static gboolean gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event) { - GstTagLibMux *taglib; + GstTagLibMux *mux; gboolean result; - taglib = GST_TAGLIB_MUX (gst_pad_get_parent (pad)); + mux = GST_TAG_LIB_MUX (gst_pad_get_parent (pad)); result = FALSE; switch (GST_EVENT_TYPE (event)) { @@ -524,16 +528,16 @@ gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event) gst_event_parse_tag (event, &tags); - GST_INFO_OBJECT (taglib, "Got tag event: %" GST_PTR_FORMAT, tags); + GST_INFO_OBJECT (mux, "Got tag event: %" GST_PTR_FORMAT, tags); - if (taglib->event_tags != NULL) { - gst_tag_list_insert (taglib->event_tags, tags, GST_TAG_MERGE_REPLACE); + if (mux->event_tags != NULL) { + gst_tag_list_insert (mux->event_tags, tags, GST_TAG_MERGE_REPLACE); } else { - taglib->event_tags = gst_tag_list_copy (tags); + mux->event_tags = gst_tag_list_copy (tags); } - GST_INFO_OBJECT (taglib, "Event tags are now: %" GST_PTR_FORMAT, - taglib->event_tags); + GST_INFO_OBJECT (mux, "Event tags are now: %" GST_PTR_FORMAT, + mux->event_tags); /* just drop the event, we'll push a new tag event in render_tag */ gst_event_unref (event); @@ -546,29 +550,29 @@ gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event) gst_event_parse_new_segment (event, NULL, NULL, &fmt, NULL, NULL, NULL); if (fmt != GST_FORMAT_BYTES) { - GST_WARNING_OBJECT (taglib, "dropping newsegment event in %s format", + GST_WARNING_OBJECT (mux, "dropping newsegment event in %s format", gst_format_get_name (fmt)); gst_event_unref (event); break; } - if (taglib->render_tag) { + if (mux->render_tag) { /* we have not rendered the tag yet, which means that we don't know * how large it is going to be yet, so we can't adjust the offsets * here at this point and need to cache the newsegment event for now * (also, there could be tag events coming after this newsegment event * and before the first buffer). */ - if (taglib->newsegment_ev) { - GST_WARNING_OBJECT (taglib, "discarding old cached newsegment event"); - gst_event_unref (taglib->newsegment_ev); + if (mux->newsegment_ev) { + GST_WARNING_OBJECT (mux, "discarding old cached newsegment event"); + gst_event_unref (mux->newsegment_ev); } - GST_LOG_OBJECT (taglib, "caching newsegment event for later"); - taglib->newsegment_ev = event; + GST_LOG_OBJECT (mux, "caching newsegment event for later"); + mux->newsegment_ev = event; } else { - GST_DEBUG_OBJECT (taglib, "got newsegment event, adjusting offsets"); - gst_pad_push_event (taglib->srcpad, - gst_tag_lib_mux_adjust_event_offsets (taglib, event)); + GST_DEBUG_OBJECT (mux, "got newsegment event, adjusting offsets"); + gst_pad_push_event (mux->srcpad, + gst_tag_lib_mux_adjust_event_offsets (mux, event)); gst_event_unref (event); } event = NULL; @@ -580,7 +584,7 @@ gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event) break; } - gst_object_unref (taglib); + gst_object_unref (mux); return result; } @@ -589,10 +593,10 @@ gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event) static GstStateChangeReturn gst_tag_lib_mux_change_state (GstElement * element, GstStateChange transition) { - GstTagLibMux *taglib; + GstTagLibMux *mux; GstStateChangeReturn result; - taglib = GST_TAGLIB_MUX (element); + mux = GST_TAG_LIB_MUX (element); result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); if (result != GST_STATE_CHANGE_SUCCESS) { @@ -601,16 +605,16 @@ gst_tag_lib_mux_change_state (GstElement * element, GstStateChange transition) switch (transition) { case GST_STATE_CHANGE_PAUSED_TO_READY:{ - if (taglib->newsegment_ev) { - gst_event_unref (taglib->newsegment_ev); - taglib->newsegment_ev = NULL; + if (mux->newsegment_ev) { + gst_event_unref (mux->newsegment_ev); + mux->newsegment_ev = NULL; } - if (taglib->event_tags) { - gst_tag_list_free (taglib->event_tags); - taglib->event_tags = NULL; + if (mux->event_tags) { + gst_tag_list_free (mux->event_tags); + mux->event_tags = NULL; } - taglib->tag_size = 0; - taglib->render_tag = TRUE; + mux->tag_size = 0; + mux->render_tag = TRUE; break; } default: @@ -624,12 +628,12 @@ gst_tag_lib_mux_change_state (GstElement * element, GstStateChange transition) static gboolean plugin_init (GstPlugin * plugin) { - if (!gst_element_register (plugin, "tagid3v2mux", GST_RANK_NONE, - GST_TYPE_TAGLIB_MUX)) + if (!gst_element_register (plugin, "id3v2mux", GST_RANK_NONE, + GST_TYPE_TAG_LIB_MUX)) return FALSE; GST_DEBUG_CATEGORY_INIT (gst_tag_lib_mux_debug, "taglibmux", 0, - "ID3 Tag Muxer"); + "taglib-based muxer"); gst_tag_register_musicbrainz_tags (); diff --git a/ext/taglib/gsttaglib.h b/ext/taglib/gsttaglib.h index b98a339c..eacfc840 100644 --- a/ext/taglib/gsttaglib.h +++ b/ext/taglib/gsttaglib.h @@ -1,4 +1,4 @@ -/* GStreamer taglib-based ID3 muxer +/* GStreamer taglib-based muxer * (c) 2006 Christophe Fergeau <teuf@gnome.org> * * This library is free software; you can redistribute it and/or @@ -45,16 +45,16 @@ typedef struct _GstTagLibMuxClass { } GstTagLibMuxClass; /* Standard macros for defining types for this element. */ -#define GST_TYPE_TAGLIB_MUX \ +#define GST_TYPE_TAG_LIB_MUX \ (gst_tag_lib_mux_get_type()) -#define GST_TAGLIB_MUX(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TAGLIB_MUX,GstTagLibMux)) -#define GST_TAGLIB_MUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TAGLIB_MUX,GstTagLibMuxClass)) -#define GST_IS_TAGLIB_MUX(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TAGLIB_MUX)) -#define GST_IS_TAGLIB_MUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TAGLIB_MUX)) +#define GST_TAG_LIB_MUX(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TAG_LIB_MUX,GstTagLibMux)) +#define GST_TAG_LIB_MUX_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TAG_LIB_MUX,GstTagLibMuxClass)) +#define GST_IS_TAG_LIB_MUX(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TAG_LIB_MUX)) +#define GST_IS_TAG_LIB_MUX_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TAG_LIB_MUX)) /* Standard function returning type information. */ GType gst_tag_lib_mux_get_type (void); |