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multifilesink: add basic buffer list handling

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We assume for now that all buffers in a buffer list
should end up in the same file (so we can group GOPs
in buffer lists, for example). Could optimise this
a bit to avoid the memcpy.
This commit is contained in:
Tim-Philipp Müller 2011-09-25 14:57:56 +01:00
parent 82ac47f33f
commit ab96fb7cdb
1 changed files with 57 additions and 0 deletions
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57
gst/multifile/gstmultifilesink.c
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@ -152,6 +152,8 @@ static void gst_multi_file_sink_get_property (GObject * object, guint prop_id,
static gboolean gst_multi_file_sink_stop (GstBaseSink * sink);
static GstFlowReturn gst_multi_file_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static GstFlowReturn gst_multi_file_sink_render_list (GstBaseSink * sink,
GstBufferList * buffer_list);
static gboolean gst_multi_file_sink_set_caps (GstBaseSink * sink,
GstCaps * caps);
static gboolean gst_multi_file_sink_open_next_file (GstMultiFileSink *
@ -286,6 +288,8 @@ gst_multi_file_sink_class_init (GstMultiFileSinkClass * klass)
gstbasesink_class->get_times = NULL;
gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_multi_file_sink_stop);
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_file_sink_render);
gstbasesink_class->render_list =
GST_DEBUG_FUNCPTR (gst_multi_file_sink_render_list);
gstbasesink_class->set_caps =
GST_DEBUG_FUNCPTR (gst_multi_file_sink_set_caps);
gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_multi_file_sink_event);
@ -657,6 +661,59 @@ stdio_write_error:
return GST_FLOW_ERROR;
}
static GstBufferListItem
buffer_list_calc_size (GstBuffer ** buf, guint group, guint idx, gpointer data)
{
guint *p_size = data;
guint buf_size;
buf_size = GST_BUFFER_SIZE (*buf);
GST_TRACE ("buffer %u in group %u has size %u", idx, group, buf_size);
*p_size += buf_size;
return GST_BUFFER_LIST_CONTINUE;
}
static GstBufferListItem
buffer_list_copy_data (GstBuffer ** buf, guint group, guint idx, gpointer data)
{
GstBuffer *dest = data;
if (group == 0 && idx == 0)
gst_buffer_copy_metadata (dest, *buf, GST_BUFFER_COPY_ALL);
memcpy (GST_BUFFER_DATA (dest) + GST_BUFFER_SIZE (dest),
GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf));
GST_BUFFER_SIZE (dest) += GST_BUFFER_SIZE (*buf);
return GST_BUFFER_LIST_CONTINUE;
}
/* Our assumption for now is that the buffers in a buffer list should always
* end up in the same file. If someone wants different behaviour, they'll just
* have to add a property for that. */
static GstFlowReturn
gst_multi_file_sink_render_list (GstBaseSink * sink, GstBufferList * list)
{
GstBuffer *buf;
guint size;
gst_buffer_list_foreach (list, buffer_list_calc_size, &size);
GST_LOG_OBJECT (sink, "total size of buffer list %p: %u", list, size);
/* copy all buffers in the list into one single buffer, so we can use
* the normal render function (FIXME: optimise to avoid the memcpy) */
buf = gst_buffer_new_and_alloc (size);
GST_BUFFER_SIZE (buf) = 0;
gst_buffer_list_foreach (list, buffer_list_copy_data, buf);
g_assert (GST_BUFFER_SIZE (buf) == size);
gst_multi_file_sink_render (sink, buf);
gst_buffer_unref (buf);
return GST_FLOW_OK;
}
static gboolean
gst_multi_file_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{