/* 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>
#include "gsttagmux.h"
+struct _GstTagMuxPrivate
+{
+ GstPad *srcpad;
+ GstPad *sinkpad;
+ GstTagList *event_tags; /* tags received from upstream elements */
+ GstTagList *final_tags; /* Final set of tags used for muxing */
+ gsize start_tag_size;
+ gsize end_tag_size;
+ gboolean render_start_tag;
+ gboolean render_end_tag;
+
+ gint64 current_offset;
+ gint64 max_offset;
+
+ GstEvent *newsegment_ev; /* cached newsegment event from upstream */
+};
+
GST_DEBUG_CATEGORY_STATIC (gst_tag_mux_debug);
#define GST_CAT_DEFAULT gst_tag_mux_debug
{
GstTagMux *mux = GST_TAG_MUX (obj);
- if (mux->newsegment_ev) {
- gst_event_unref (mux->newsegment_ev);
- mux->newsegment_ev = NULL;
+ if (mux->priv->newsegment_ev) {
+ gst_event_unref (mux->priv->newsegment_ev);
+ mux->priv->newsegment_ev = NULL;
}
- if (mux->event_tags) {
- gst_tag_list_free (mux->event_tags);
- mux->event_tags = NULL;
+ if (mux->priv->event_tags) {
+ gst_tag_list_free (mux->priv->event_tags);
+ mux->priv->event_tags = NULL;
}
- if (mux->final_tags) {
- gst_tag_list_free (mux->final_tags);
- mux->final_tags = NULL;
+ if (mux->priv->final_tags) {
+ gst_tag_list_free (mux->priv->final_tags);
+ mux->priv->final_tags = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (obj);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_tag_mux_finalize);
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_tag_mux_change_state);
+
+ g_type_class_add_private (klass, sizeof (GstTagMuxPrivate));
}
static void
GstElementClass *element_klass = GST_ELEMENT_CLASS (mux_class);
GstPadTemplate *tmpl;
+ mux->priv =
+ G_TYPE_INSTANCE_GET_PRIVATE (mux, GST_TYPE_TAG_MUX, GstTagMuxPrivate);
+
/* pad through which data comes in to the element */
- mux->sinkpad =
+ mux->priv->sinkpad =
gst_pad_new_from_static_template (&gst_tag_mux_sink_template, "sink");
- gst_pad_set_chain_function (mux->sinkpad,
+ gst_pad_set_chain_function (mux->priv->sinkpad,
GST_DEBUG_FUNCPTR (gst_tag_mux_chain));
- gst_pad_set_event_function (mux->sinkpad,
+ gst_pad_set_event_function (mux->priv->sinkpad,
GST_DEBUG_FUNCPTR (gst_tag_mux_sink_event));
- gst_element_add_pad (GST_ELEMENT (mux), mux->sinkpad);
+ gst_element_add_pad (GST_ELEMENT (mux), mux->priv->sinkpad);
/* pad through which data goes out of the element */
tmpl = gst_element_class_get_pad_template (element_klass, "src");
if (tmpl) {
- mux->srcpad = gst_pad_new_from_template (tmpl, "src");
- gst_pad_use_fixed_caps (mux->srcpad);
- gst_pad_set_caps (mux->srcpad, gst_pad_template_get_caps (tmpl));
- gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad);
+ mux->priv->srcpad = gst_pad_new_from_template (tmpl, "src");
+ gst_pad_use_fixed_caps (mux->priv->srcpad);
+ /* FIXME: we assume the template caps are fixed.. */
+ gst_pad_set_caps (mux->priv->srcpad, gst_pad_template_get_caps (tmpl));
+ gst_element_add_pad (GST_ELEMENT (mux), mux->priv->srcpad);
}
- mux->render_start_tag = TRUE;
- mux->render_end_tag = TRUE;
+ mux->priv->render_start_tag = TRUE;
+ mux->priv->render_end_tag = TRUE;
}
static GstTagList *
const GstTagList *tagsetter_tags;
GstTagMergeMode merge_mode;
- if (mux->final_tags)
- return mux->final_tags;
+ if (mux->priv->final_tags)
+ return mux->priv->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, "merging tags, merge mode = %d", merge_mode);
- GST_LOG_OBJECT (mux, "event tags: %" GST_PTR_FORMAT, mux->event_tags);
+ GST_LOG_OBJECT (mux, "event tags: %" GST_PTR_FORMAT, mux->priv->event_tags);
GST_LOG_OBJECT (mux, "set tags: %" GST_PTR_FORMAT, tagsetter_tags);
- mux->final_tags =
- gst_tag_list_merge (tagsetter_tags, mux->event_tags, merge_mode);
+ mux->priv->final_tags =
+ gst_tag_list_merge (tagsetter_tags, mux->priv->event_tags, merge_mode);
- GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, mux->final_tags);
+ GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, mux->priv->final_tags);
- return mux->final_tags;
+ return mux->priv->final_tags;
}
static GstFlowReturn
/* 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;
+ mux->priv->start_tag_size = 0;
return GST_FLOW_OK;
}
- mux->start_tag_size = GST_BUFFER_SIZE (buffer);
+ if (GST_BUFFER_CAPS (buffer) == NULL) {
+ buffer = gst_buffer_make_metadata_writable (buffer);
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->priv->srcpad));
+ }
+
+ mux->priv->start_tag_size = GST_BUFFER_SIZE (buffer);
GST_LOG_OBJECT (mux, "tag size = %" G_GSIZE_FORMAT " bytes",
- mux->start_tag_size);
+ mux->priv->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_pad_push_event (mux->srcpad,
+ gst_pad_push_event (mux->priv->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 use a copy */
event = gst_event_new_tag (gst_tag_list_copy (taglist));
- gst_pad_push_event (mux->srcpad, event);
+ gst_pad_push_event (mux->priv->srcpad, event);
GST_BUFFER_OFFSET (buffer) = 0;
- ret = gst_pad_push (mux->srcpad, buffer);
+ ret = gst_pad_push (mux->priv->srcpad, buffer);
- mux->current_offset = mux->start_tag_size;
- mux->max_offset = MAX (mux->max_offset, mux->current_offset);
+ mux->priv->current_offset = mux->priv->start_tag_size;
+ mux->priv->max_offset =
+ MAX (mux->priv->max_offset, mux->priv->current_offset);
return ret;
if (buffer == NULL) {
GST_INFO_OBJECT (mux, "No end tag generated");
- mux->end_tag_size = 0;
+ mux->priv->end_tag_size = 0;
return GST_FLOW_OK;
}
- mux->end_tag_size = GST_BUFFER_SIZE (buffer);
+ if (GST_BUFFER_CAPS (buffer) == NULL) {
+ buffer = gst_buffer_make_metadata_writable (buffer);
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->priv->srcpad));
+ }
+
+ mux->priv->end_tag_size = GST_BUFFER_SIZE (buffer);
GST_LOG_OBJECT (mux, "tag size = %" G_GSIZE_FORMAT " bytes",
- mux->end_tag_size);
+ mux->priv->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_pad_push_event (mux->priv->srcpad,
+ gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
+ mux->priv->max_offset, -1, 0));
- GST_BUFFER_OFFSET (buffer) = mux->max_offset;
- ret = gst_pad_push (mux->srcpad, buffer);
+ GST_BUFFER_OFFSET (buffer) = mux->priv->max_offset;
+ ret = gst_pad_push (mux->priv->srcpad, buffer);
return ret;
g_assert (format == GST_FORMAT_BYTES);
if (start != -1)
- start += mux->start_tag_size;
+ start += mux->priv->start_tag_size;
if (stop != -1)
- stop += mux->start_tag_size;
+ stop += mux->priv->start_tag_size;
if (cur != -1)
- cur += mux->start_tag_size;
+ cur += mux->priv->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->start_tag_size);
+ " (delta = +%" G_GSIZE_FORMAT ")", start, stop, cur,
+ mux->priv->start_tag_size);
return gst_event_new_new_segment (TRUE, 1.0, format, start, stop, cur);
}
GstFlowReturn ret;
int length;
- if (mux->render_start_tag) {
+ if (mux->priv->render_start_tag) {
GST_INFO_OBJECT (mux, "Adding tags to stream");
ret = gst_tag_mux_render_start_tag (mux);
}
/* Now send the cached newsegment event that we got from upstream */
- if (mux->newsegment_ev) {
+ if (mux->priv->newsegment_ev) {
gint64 start;
GstEvent *newseg;
GST_DEBUG_OBJECT (mux, "sending cached newsegment event");
- newseg = gst_tag_mux_adjust_event_offsets (mux, mux->newsegment_ev);
- gst_event_unref (mux->newsegment_ev);
- mux->newsegment_ev = NULL;
+ newseg = gst_tag_mux_adjust_event_offsets (mux, mux->priv->newsegment_ev);
+ gst_event_unref (mux->priv->newsegment_ev);
+ mux->priv->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);
+ gst_pad_push_event (mux->priv->srcpad, newseg);
+ mux->priv->current_offset = start;
+ mux->priv->max_offset =
+ MAX (mux->priv->max_offset, mux->priv->current_offset);
} else {
/* upstream sent no newsegment event or only one in a non-BYTE format */
}
- mux->render_start_tag = FALSE;
+ mux->priv->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->start_tag_size);
- GST_BUFFER_OFFSET (buffer) += mux->start_tag_size;
+ GST_BUFFER_OFFSET (buffer) + mux->priv->start_tag_size);
+ GST_BUFFER_OFFSET (buffer) += mux->priv->start_tag_size;
}
length = GST_BUFFER_SIZE (buffer);
- gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->srcpad));
- ret = gst_pad_push (mux->srcpad, buffer);
+ gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->priv->srcpad));
+ ret = gst_pad_push (mux->priv->srcpad, buffer);
- mux->current_offset += length;
- mux->max_offset = MAX (mux->max_offset, mux->current_offset);
+ mux->priv->current_offset += length;
+ mux->priv->max_offset =
+ MAX (mux->priv->max_offset, mux->priv->current_offset);
return ret;
}
GST_INFO_OBJECT (mux, "Got tag event: %" GST_PTR_FORMAT, tags);
- if (mux->event_tags != NULL) {
- gst_tag_list_insert (mux->event_tags, tags, GST_TAG_MERGE_REPLACE);
+ if (mux->priv->event_tags != NULL) {
+ gst_tag_list_insert (mux->priv->event_tags, tags,
+ GST_TAG_MERGE_REPLACE);
} else {
- mux->event_tags = gst_tag_list_copy (tags);
+ mux->priv->event_tags = gst_tag_list_copy (tags);
}
GST_INFO_OBJECT (mux, "Event tags are now: %" GST_PTR_FORMAT,
- mux->event_tags);
+ mux->priv->event_tags);
/* just drop the event, we'll push a new tag event in render_start_tag */
gst_event_unref (event);
break;
}
- if (mux->render_start_tag) {
+ if (mux->priv->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
* (also, there could be tag events coming after this newsegment event
* and before the first buffer). */
- if (mux->newsegment_ev) {
+ if (mux->priv->newsegment_ev) {
GST_WARNING_OBJECT (mux, "discarding old cached newsegment event");
- gst_event_unref (mux->newsegment_ev);
+ gst_event_unref (mux->priv->newsegment_ev);
}
GST_LOG_OBJECT (mux, "caching newsegment event for later");
- mux->newsegment_ev = event;
+ mux->priv->newsegment_ev = event;
} else {
GST_DEBUG_OBJECT (mux, "got newsegment event, adjusting offsets");
- gst_pad_push_event (mux->srcpad,
+ gst_pad_push_event (mux->priv->srcpad,
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);
+ mux->priv->current_offset = start;
+ mux->priv->max_offset =
+ MAX (mux->priv->max_offset, mux->priv->current_offset);
}
event = NULL;
result = TRUE;
break;
}
case GST_EVENT_EOS:{
- if (mux->render_end_tag) {
+ if (mux->priv->render_end_tag) {
GstFlowReturn ret;
GST_INFO_OBJECT (mux, "Adding tags to stream");
return ret;
}
- mux->render_end_tag = FALSE;
+ mux->priv->render_end_tag = FALSE;
}
/* Now forward EOS */
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:{
- if (mux->newsegment_ev) {
- gst_event_unref (mux->newsegment_ev);
- mux->newsegment_ev = NULL;
+ if (mux->priv->newsegment_ev) {
+ gst_event_unref (mux->priv->newsegment_ev);
+ mux->priv->newsegment_ev = NULL;
}
- if (mux->event_tags) {
- gst_tag_list_free (mux->event_tags);
- mux->event_tags = NULL;
+ if (mux->priv->event_tags) {
+ gst_tag_list_free (mux->priv->event_tags);
+ mux->priv->event_tags = NULL;
}
- 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;
+ mux->priv->start_tag_size = 0;
+ mux->priv->end_tag_size = 0;
+ mux->priv->render_start_tag = TRUE;
+ mux->priv->render_end_tag = TRUE;
+ mux->priv->current_offset = 0;
+ mux->priv->max_offset = 0;
break;
}
default: