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filesink: Flush buffers before directly writing out buffers with the SYNC_AFTER flag

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Otherwise we write out the SYNC_AFTER buffer immediately, and the
previously queued up buffers afterwards which then breaks the order of
data.

Also add various debug output.
This commit is contained in:
Sebastian Dröge 2018-08-28 14:22:16 +03:00
parent 4aeac4b551
commit b324e4b802
1 changed files with 24 additions and 6 deletions
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30
plugins/elements/gstfilesink.c
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@ -650,11 +650,12 @@ gst_file_sink_get_current_offset (GstFileSink * filesink, guint64 * p_pos)
static GstFlowReturn static GstFlowReturn
gst_file_sink_render_buffers (GstFileSink * sink, GstBuffer ** buffers, gst_file_sink_render_buffers (GstFileSink * sink, GstBuffer ** buffers,
guint num_buffers, guint8 * mem_nums, guint total_mems) guint num_buffers, guint8 * mem_nums, guint total_mems, gsize size)
{ {
GST_DEBUG_OBJECT (sink, GST_DEBUG_OBJECT (sink,
"writing %u buffers (%u memories) at position %" G_GUINT64_FORMAT, "writing %u buffers (%u memories, %" G_GSIZE_FORMAT
num_buffers, total_mems, sink->current_pos); " bytes) at position %" G_GUINT64_FORMAT, num_buffers, total_mems, size,
sink->current_pos);
return gst_writev_buffers (GST_OBJECT_CAST (sink), fileno (sink->file), NULL, return gst_writev_buffers (GST_OBJECT_CAST (sink), fileno (sink->file), NULL,
buffers, num_buffers, mem_nums, total_mems, &sink->current_pos, 0); buffers, num_buffers, mem_nums, total_mems, &sink->current_pos, 0);
@ -668,6 +669,7 @@ gst_file_sink_render_list_internal (GstFileSink * sink,
GstBuffer **buffers; GstBuffer **buffers;
guint8 *mem_nums; guint8 *mem_nums;
guint total_mems; guint total_mems;
gsize total_size = 0;
guint i, num_buffers; guint i, num_buffers;
num_buffers = gst_buffer_list_length (buffer_list); num_buffers = gst_buffer_list_length (buffer_list);
@ -681,11 +683,12 @@ gst_file_sink_render_list_internal (GstFileSink * sink,
buffers[i] = gst_buffer_list_get (buffer_list, i); buffers[i] = gst_buffer_list_get (buffer_list, i);
mem_nums[i] = gst_buffer_n_memory (buffers[i]); mem_nums[i] = gst_buffer_n_memory (buffers[i]);
total_mems += mem_nums[i]; total_mems += mem_nums[i];
total_size += gst_buffer_get_size (buffers[i]);
} }
flow = flow =
gst_file_sink_render_buffers (sink, buffers, num_buffers, mem_nums, gst_file_sink_render_buffers (sink, buffers, num_buffers, mem_nums,
total_mems); total_mems, total_size);
return flow; return flow;
@ -761,11 +764,18 @@ gst_file_sink_render_list (GstBaseSink * bsink, GstBufferList * buffer_list)
gst_buffer_list_foreach (buffer_list, has_sync_after_buffer, &sync_after); gst_buffer_list_foreach (buffer_list, has_sync_after_buffer, &sync_after);
if (sync_after || !sink->buffer) { if (sync_after || !sink->buffer) {
flow = gst_file_sink_render_list_internal (sink, buffer_list); flow = gst_file_sink_flush_buffer (sink);
if (flow == GST_FLOW_OK)
flow = gst_file_sink_render_list_internal (sink, buffer_list);
} else { } else {
guint size = 0; guint size = 0;
gst_buffer_list_foreach (buffer_list, accumulate_size, &size); gst_buffer_list_foreach (buffer_list, accumulate_size, &size);
GST_DEBUG_OBJECT (sink,
"Queueing buffer list of %u bytes (%u buffers) at offset %"
G_GSIZE_FORMAT, size, num_buffers,
sink->current_pos + sink->current_buffer_size);
for (i = 0; i < num_buffers; ++i) for (i = 0; i < num_buffers; ++i)
gst_buffer_list_add (sink->buffer, gst_buffer_list_add (sink->buffer,
gst_buffer_ref (gst_buffer_list_get (buffer_list, i))); gst_buffer_ref (gst_buffer_list_get (buffer_list, i)));
@ -810,8 +820,16 @@ gst_file_sink_render (GstBaseSink * sink, GstBuffer * buffer)
n_mem = gst_buffer_n_memory (buffer); n_mem = gst_buffer_n_memory (buffer);
if (n_mem > 0 && (sync_after || !filesink->buffer)) { if (n_mem > 0 && (sync_after || !filesink->buffer)) {
flow = gst_file_sink_render_buffers (filesink, &buffer, 1, &n_mem, n_mem); flow = gst_file_sink_flush_buffer (filesink);
if (flow == GST_FLOW_OK)
flow =
gst_file_sink_render_buffers (filesink, &buffer, 1, &n_mem, n_mem,
gst_buffer_get_size (buffer));
} else if (n_mem > 0) { } else if (n_mem > 0) {
GST_DEBUG_OBJECT (filesink,
"Queueing buffer of %" G_GSIZE_FORMAT " bytes at offset %"
G_GSIZE_FORMAT, gst_buffer_get_size (buffer),
filesink->current_pos + filesink->current_buffer_size);
filesink->current_buffer_size += gst_buffer_get_size (buffer); filesink->current_buffer_size += gst_buffer_get_size (buffer);
gst_buffer_list_add (filesink->buffer, gst_buffer_ref (buffer)); gst_buffer_list_add (filesink->buffer, gst_buffer_ref (buffer));