-/* GStreamer taglib-based muxer base class
+/* GStreamer tag muxer base class
+ *
* Copyright (C) 2006 Christophe Fergeau <teuf@gnome.org>
* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
* Copyright (C) 2006 Sebastian Dröge <slomo@circular-chaos.org>
-
+ * Copyright (C) 2009 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ *
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
#include <gst/gsttagsetter.h>
#include <gst/tag/tag.h>
-#include "gsttaglibmux.h"
+#include "gsttagmux.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_tag_mux_debug);
+#define GST_CAT_DEFAULT gst_tag_mux_debug
-GST_DEBUG_CATEGORY_STATIC (gst_tag_lib_mux_debug);
-#define GST_CAT_DEFAULT gst_tag_lib_mux_debug
+/* Subclass provides a src template and pad. We accept anything as input here,
+ however. */
-static GstStaticPadTemplate gst_tag_lib_mux_sink_template =
+static GstStaticPadTemplate gst_tag_mux_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY"));
static void
-gst_tag_lib_mux_iface_init (GType taglib_type)
+gst_tag_mux_iface_init (GType tag_type)
{
static const GInterfaceInfo tag_setter_info = {
NULL,
NULL
};
- g_type_add_interface_static (taglib_type, GST_TYPE_TAG_SETTER,
- &tag_setter_info);
+ g_type_add_interface_static (tag_type, GST_TYPE_TAG_SETTER, &tag_setter_info);
}
-GST_BOILERPLATE_FULL (GstTagLibMux, gst_tag_lib_mux,
- GstElement, GST_TYPE_ELEMENT, gst_tag_lib_mux_iface_init);
+GST_BOILERPLATE_FULL (GstTagMux, gst_tag_mux,
+ GstElement, GST_TYPE_ELEMENT, gst_tag_mux_iface_init);
static GstStateChangeReturn
-gst_tag_lib_mux_change_state (GstElement * element, GstStateChange transition);
-static GstFlowReturn gst_tag_lib_mux_chain (GstPad * pad, GstBuffer * buffer);
-static gboolean gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event);
+gst_tag_mux_change_state (GstElement * element, GstStateChange transition);
+static GstFlowReturn gst_tag_mux_chain (GstPad * pad, GstBuffer * buffer);
+static gboolean gst_tag_mux_sink_event (GstPad * pad, GstEvent * event);
static void
-gst_tag_lib_mux_finalize (GObject * obj)
+gst_tag_mux_finalize (GObject * obj)
{
- GstTagLibMux *mux = GST_TAG_LIB_MUX (obj);
+ GstTagMux *mux = GST_TAG_MUX (obj);
if (mux->newsegment_ev) {
gst_event_unref (mux->newsegment_ev);
mux->event_tags = NULL;
}
+ if (mux->final_tags) {
+ gst_tag_list_free (mux->final_tags);
+ mux->final_tags = NULL;
+ }
+
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
static void
-gst_tag_lib_mux_base_init (gpointer g_class)
+gst_tag_mux_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_tag_lib_mux_sink_template));
+ gst_static_pad_template_get (&gst_tag_mux_sink_template));
- GST_DEBUG_CATEGORY_INIT (gst_tag_lib_mux_debug, "taglibmux", 0,
- "taglib-based muxer");
+ GST_DEBUG_CATEGORY_INIT (gst_tag_mux_debug, "tagmux", 0,
+ "tag muxer base class");
}
static void
-gst_tag_lib_mux_class_init (GstTagLibMuxClass * klass)
+gst_tag_mux_class_init (GstTagMuxClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
- gobject_class->finalize = gst_tag_lib_mux_finalize;
- gstelement_class->change_state =
- GST_DEBUG_FUNCPTR (gst_tag_lib_mux_change_state);
+ gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_tag_mux_finalize);
+ gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_tag_mux_change_state);
}
static void
-gst_tag_lib_mux_init (GstTagLibMux * mux, GstTagLibMuxClass * mux_class)
+gst_tag_mux_init (GstTagMux * mux, GstTagMuxClass * mux_class)
{
GstElementClass *element_klass = GST_ELEMENT_CLASS (mux_class);
GstPadTemplate *tmpl;
/* pad through which data comes in to the element */
mux->sinkpad =
- gst_pad_new_from_static_template (&gst_tag_lib_mux_sink_template, "sink");
+ gst_pad_new_from_static_template (&gst_tag_mux_sink_template, "sink");
gst_pad_set_chain_function (mux->sinkpad,
- GST_DEBUG_FUNCPTR (gst_tag_lib_mux_chain));
+ GST_DEBUG_FUNCPTR (gst_tag_mux_chain));
gst_pad_set_event_function (mux->sinkpad,
- GST_DEBUG_FUNCPTR (gst_tag_lib_mux_sink_event));
+ GST_DEBUG_FUNCPTR (gst_tag_mux_sink_event));
gst_element_add_pad (GST_ELEMENT (mux), mux->sinkpad);
/* pad through which data goes out of the element */
gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad);
}
- mux->render_tag = TRUE;
+ mux->render_start_tag = TRUE;
+ mux->render_end_tag = TRUE;
}
-static GstBuffer *
-gst_tag_lib_mux_render_tag (GstTagLibMux * mux)
+static GstTagList *
+gst_tag_mux_get_tags (GstTagMux * mux)
{
- GstTagLibMuxClass *klass;
- GstTagMergeMode merge_mode;
- GstTagSetter *tagsetter;
- GstBuffer *buffer;
+ GstTagSetter *tagsetter = GST_TAG_SETTER (mux);
const GstTagList *tagsetter_tags;
- GstTagList *taglist;
- GstEvent *event;
+ GstTagMergeMode merge_mode;
- tagsetter = GST_TAG_SETTER (mux);
+ if (mux->final_tags)
+ return mux->final_tags;
tagsetter_tags = gst_tag_setter_get_tag_list (tagsetter);
merge_mode = gst_tag_setter_get_tag_merge_mode (tagsetter);
GST_LOG_OBJECT (mux, "event tags: %" GST_PTR_FORMAT, mux->event_tags);
GST_LOG_OBJECT (mux, "set tags: %" GST_PTR_FORMAT, tagsetter_tags);
- taglist = gst_tag_list_merge (tagsetter_tags, mux->event_tags, merge_mode);
+ mux->final_tags =
+ gst_tag_list_merge (tagsetter_tags, mux->event_tags, merge_mode);
+
+ GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, mux->final_tags);
+
+ return mux->final_tags;
+}
+
+static GstFlowReturn
+gst_tag_mux_render_start_tag (GstTagMux * mux)
+{
+ GstTagMuxClass *klass;
+ GstBuffer *buffer;
+ GstTagList *taglist;
+ GstEvent *event;
+ GstFlowReturn ret;
- GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, taglist);
+ taglist = gst_tag_mux_get_tags (mux);
- klass = GST_TAG_LIB_MUX_CLASS (G_OBJECT_GET_CLASS (mux));
+ klass = GST_TAG_MUX_CLASS (G_OBJECT_GET_CLASS (mux));
- if (klass->render_tag == NULL)
+ if (klass->render_start_tag == NULL)
goto no_vfunc;
- buffer = klass->render_tag (mux, taglist);
+ buffer = klass->render_start_tag (mux, taglist);
- if (buffer == NULL)
- goto render_error;
+ /* Null buffer is ok, just means we're not outputting anything */
+ if (buffer == NULL) {
+ GST_INFO_OBJECT (mux, "No start tag generated");
+ mux->start_tag_size = 0;
+ return GST_FLOW_OK;
+ }
- mux->tag_size = GST_BUFFER_SIZE (buffer);
- GST_LOG_OBJECT (mux, "tag size = %" G_GSIZE_FORMAT " bytes", mux->tag_size);
+ mux->start_tag_size = GST_BUFFER_SIZE (buffer);
+ GST_LOG_OBJECT (mux, "tag size = %" G_GSIZE_FORMAT " bytes",
+ mux->start_tag_size);
/* 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_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_event_new_tag takes ownership of the list, so use a copy */
+ event = gst_event_new_tag (gst_tag_list_copy (taglist));
gst_pad_push_event (mux->srcpad, event);
GST_BUFFER_OFFSET (buffer) = 0;
+ ret = gst_pad_push (mux->srcpad, buffer);
+
+ mux->current_offset = mux->start_tag_size;
+ mux->max_offset = MAX (mux->max_offset, mux->current_offset);
- return buffer;
+ return ret;
no_vfunc:
{
- GST_ERROR_OBJECT (mux, "Subclass does not implement render_tag vfunc!");
- gst_tag_list_free (taglist);
- return NULL;
+ GST_ERROR_OBJECT (mux, "Subclass does not implement "
+ "render_start_tag vfunc!");
+ return GST_FLOW_ERROR;
+ }
+}
+
+static GstFlowReturn
+gst_tag_mux_render_end_tag (GstTagMux * mux)
+{
+ GstTagMuxClass *klass;
+ GstBuffer *buffer;
+ GstTagList *taglist;
+ GstFlowReturn ret;
+
+ taglist = gst_tag_mux_get_tags (mux);
+
+ klass = GST_TAG_MUX_CLASS (G_OBJECT_GET_CLASS (mux));
+
+ if (klass->render_end_tag == NULL)
+ goto no_vfunc;
+
+ buffer = klass->render_end_tag (mux, taglist);
+
+ if (buffer == NULL) {
+ GST_INFO_OBJECT (mux, "No end tag generated");
+ mux->end_tag_size = 0;
+ return GST_FLOW_OK;
}
-render_error:
+ mux->end_tag_size = GST_BUFFER_SIZE (buffer);
+ GST_LOG_OBJECT (mux, "tag size = %" G_GSIZE_FORMAT " bytes",
+ mux->end_tag_size);
+
+ /* Send newsegment event from the end of the file, so it gets written there,
+ independent of whatever new segment events upstream has sent us */
+ gst_pad_push_event (mux->srcpad,
+ gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, mux->max_offset,
+ -1, 0));
+
+ GST_BUFFER_OFFSET (buffer) = mux->max_offset;
+ ret = gst_pad_push (mux->srcpad, buffer);
+
+ return ret;
+
+no_vfunc:
{
- GST_ERROR_OBJECT (mux, "Failed to render tag");
- gst_tag_list_free (taglist);
- return NULL;
+ GST_ERROR_OBJECT (mux, "Subclass does not implement "
+ "render_end_tag vfunc!");
+ return GST_FLOW_ERROR;
}
}
static GstEvent *
-gst_tag_lib_mux_adjust_event_offsets (GstTagLibMux * mux,
+gst_tag_mux_adjust_event_offsets (GstTagMux * mux,
const GstEvent * newsegment_event)
{
GstFormat format;
g_assert (format == GST_FORMAT_BYTES);
if (start != -1)
- start += mux->tag_size;
+ start += mux->start_tag_size;
if (stop != -1)
- stop += mux->tag_size;
+ stop += mux->start_tag_size;
if (cur != -1)
- cur += mux->tag_size;
+ cur += mux->start_tag_size;
GST_DEBUG_OBJECT (mux, "adjusting newsegment event offsets to start=%"
G_GINT64_FORMAT ", stop=%" G_GINT64_FORMAT ", cur=%" G_GINT64_FORMAT
- " (delta = +%" G_GSIZE_FORMAT ")", start, stop, cur, mux->tag_size);
+ " (delta = +%" G_GSIZE_FORMAT ")", start, stop, cur, mux->start_tag_size);
return gst_event_new_new_segment (TRUE, 1.0, format, start, stop, cur);
}
static GstFlowReturn
-gst_tag_lib_mux_chain (GstPad * pad, GstBuffer * buffer)
+gst_tag_mux_chain (GstPad * pad, GstBuffer * buffer)
{
- GstTagLibMux *mux = GST_TAG_LIB_MUX (GST_OBJECT_PARENT (pad));
+ GstTagMux *mux = GST_TAG_MUX (GST_OBJECT_PARENT (pad));
+ GstFlowReturn ret;
+ int length;
- if (mux->render_tag) {
- GstFlowReturn ret;
- GstBuffer *tag_buffer;
+ if (mux->render_start_tag) {
GST_INFO_OBJECT (mux, "Adding tags to stream");
- tag_buffer = gst_tag_lib_mux_render_tag (mux);
- if (tag_buffer == NULL)
- goto no_tag_buffer;
- ret = gst_pad_push (mux->srcpad, tag_buffer);
+ ret = gst_tag_mux_render_start_tag (mux);
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (mux, "flow: %s", gst_flow_get_name (ret));
gst_buffer_unref (buffer);
/* Now send the cached newsegment event that we got from upstream */
if (mux->newsegment_ev) {
+ gint64 start;
+ GstEvent *newseg;
+
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));
+ newseg = gst_tag_mux_adjust_event_offsets (mux, mux->newsegment_ev);
gst_event_unref (mux->newsegment_ev);
mux->newsegment_ev = NULL;
+
+ gst_event_parse_new_segment (newseg, NULL, NULL, NULL, &start, NULL,
+ NULL);
+
+ gst_pad_push_event (mux->srcpad, newseg);
+ mux->current_offset = start;
+ mux->max_offset = MAX (mux->max_offset, mux->current_offset);
} else {
/* upstream sent no newsegment event or only one in a non-BYTE format */
}
- mux->render_tag = FALSE;
+ mux->render_start_tag = FALSE;
}
buffer = gst_buffer_make_metadata_writable (buffer);
if (GST_BUFFER_OFFSET (buffer) != GST_BUFFER_OFFSET_NONE) {
GST_LOG_OBJECT (mux, "Adjusting buffer offset from %" G_GINT64_FORMAT
" to %" G_GINT64_FORMAT, GST_BUFFER_OFFSET (buffer),
- GST_BUFFER_OFFSET (buffer) + mux->tag_size);
- GST_BUFFER_OFFSET (buffer) += mux->tag_size;
+ GST_BUFFER_OFFSET (buffer) + mux->start_tag_size);
+ GST_BUFFER_OFFSET (buffer) += mux->start_tag_size;
}
+ length = GST_BUFFER_SIZE (buffer);
+
gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->srcpad));
- return gst_pad_push (mux->srcpad, buffer);
+ ret = gst_pad_push (mux->srcpad, buffer);
-/* ERRORS */
-no_tag_buffer:
- {
- GST_ELEMENT_ERROR (mux, LIBRARY, ENCODE, (NULL), (NULL));
- return GST_FLOW_ERROR;
- }
+ mux->current_offset += length;
+ mux->max_offset = MAX (mux->max_offset, mux->current_offset);
+
+ return ret;
}
static gboolean
-gst_tag_lib_mux_sink_event (GstPad * pad, GstEvent * event)
+gst_tag_mux_sink_event (GstPad * pad, GstEvent * event)
{
- GstTagLibMux *mux;
+ GstTagMux *mux;
gboolean result;
- mux = GST_TAG_LIB_MUX (gst_pad_get_parent (pad));
+ mux = GST_TAG_MUX (gst_pad_get_parent (pad));
result = FALSE;
switch (GST_EVENT_TYPE (event)) {
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 */
+ /* just drop the event, we'll push a new tag event in render_start_tag */
gst_event_unref (event);
result = TRUE;
break;
}
case GST_EVENT_NEWSEGMENT:{
GstFormat fmt;
+ gint64 start;
- gst_event_parse_new_segment (event, NULL, NULL, &fmt, NULL, NULL, NULL);
+ gst_event_parse_new_segment (event, NULL, NULL, &fmt, &start, NULL, NULL);
if (fmt != GST_FORMAT_BYTES) {
GST_WARNING_OBJECT (mux, "dropping newsegment event in %s format",
break;
}
- if (mux->render_tag) {
+ if (mux->render_start_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
} else {
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_tag_mux_adjust_event_offsets (mux, event));
gst_event_unref (event);
+
+ mux->current_offset = start;
+ mux->max_offset = MAX (mux->max_offset, mux->current_offset);
}
event = NULL;
result = TRUE;
break;
}
+ case GST_EVENT_EOS:{
+ if (mux->render_end_tag) {
+ GstFlowReturn ret;
+
+ GST_INFO_OBJECT (mux, "Adding tags to stream");
+ ret = gst_tag_mux_render_end_tag (mux);
+ if (ret != GST_FLOW_OK) {
+ GST_DEBUG_OBJECT (mux, "flow: %s", gst_flow_get_name (ret));
+ return ret;
+ }
+
+ mux->render_end_tag = FALSE;
+ }
+
+ /* Now forward EOS */
+ result = gst_pad_event_default (pad, event);
+ break;
+ }
default:
result = gst_pad_event_default (pad, event);
break;
static GstStateChangeReturn
-gst_tag_lib_mux_change_state (GstElement * element, GstStateChange transition)
+gst_tag_mux_change_state (GstElement * element, GstStateChange transition)
{
- GstTagLibMux *mux;
+ GstTagMux *mux;
GstStateChangeReturn result;
- mux = GST_TAG_LIB_MUX (element);
+ mux = GST_TAG_MUX (element);
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (result != GST_STATE_CHANGE_SUCCESS) {
gst_tag_list_free (mux->event_tags);
mux->event_tags = NULL;
}
- mux->tag_size = 0;
- mux->render_tag = TRUE;
+ mux->start_tag_size = 0;
+ mux->end_tag_size = 0;
+ mux->render_start_tag = TRUE;
+ mux->render_end_tag = TRUE;
+ mux->current_offset = 0;
+ mux->max_offset = 0;
break;
}
default:
return result;
}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- return (gst_id3v2_mux_plugin_init (plugin)
- && gst_apev2_mux_plugin_init (plugin));
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "taglib",
- "Tag writing plug-in based on taglib",
- plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
projects / platform / upstream / gstreamer.git / commitdiff