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pipewiresink: split buffer and send them in turn if needed

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For some streams, the buffer size is changed and may exceed
the acquired buffer size which is acquired from the pool of
pipewiresink. Need split buffer and send them in turn for
this case.
This commit is contained in:
Elliot Chen 2025-01-03 14:38:54 +09:00
parent 974117f41a
commit 419bc600a8
1 changed files with 40 additions and 24 deletions
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36
src/gst/gstpipewiresink.c
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@ -822,7 +822,6 @@ gst_pipewire_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
GstPipeWireSink *pwsink; GstPipeWireSink *pwsink;
GstFlowReturn res = GST_FLOW_OK; GstFlowReturn res = GST_FLOW_OK;
const char *error = NULL; const char *error = NULL;
gboolean unref_buffer = FALSE;
pwsink = GST_PIPEWIRE_SINK (bsink); pwsink = GST_PIPEWIRE_SINK (bsink);
@ -855,34 +854,51 @@ gst_pipewire_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
goto done_unlock; goto done_unlock;
if (buffer->pool != GST_BUFFER_POOL_CAST (pwsink->stream->pool)) { if (buffer->pool != GST_BUFFER_POOL_CAST (pwsink->stream->pool)) {
gsize offset = 0;
gsize buf_size = 0;
gst_buffer_get_sizes (buffer, NULL, &buf_size);
/* For some streams, the buffer size is changed and may exceed the acquired
* buffer size which is acquired from the pool of pipewiresink. Need split
* the buffer and send them in turn for this case */
while (buf_size) {
GstBuffer *b = NULL; GstBuffer *b = NULL;
GstMapInfo info = { 0, }; GstMapInfo info = { 0, };
GstBufferPoolAcquireParams params = { 0, }; GstBufferPoolAcquireParams params = { 0, };
pw_thread_loop_unlock (pwsink->stream->core->loop); pw_thread_loop_unlock (pwsink->stream->core->loop);
if ((res = gst_buffer_pool_acquire_buffer (GST_BUFFER_POOL_CAST (pwsink->stream->pool), &b, &params)) != GST_FLOW_OK) if ((res = gst_buffer_pool_acquire_buffer (GST_BUFFER_POOL_CAST (pwsink->stream->pool),
&b, &params)) != GST_FLOW_OK)
goto done; goto done;
gst_buffer_map (b, &info, GST_MAP_WRITE); gst_buffer_map (b, &info, GST_MAP_WRITE);
gst_buffer_extract (buffer, 0, info.data, info.maxsize); gsize extract_size = (buf_size <= info.maxsize) ? buf_size: info.maxsize;
gst_buffer_extract (buffer, offset, info.data, info.maxsize);
gst_buffer_unmap (b, &info); gst_buffer_unmap (b, &info);
gst_buffer_resize (b, 0, gst_buffer_get_size (buffer)); gst_buffer_resize (b, 0, extract_size);
gst_buffer_copy_into(b, buffer, GST_BUFFER_COPY_METADATA, 0, -1); gst_buffer_copy_into(b, buffer, GST_BUFFER_COPY_METADATA, 0, -1);
buffer = b; buf_size -= extract_size;
unref_buffer = TRUE; offset += extract_size;
pw_thread_loop_lock (pwsink->stream->core->loop); pw_thread_loop_lock (pwsink->stream->core->loop);
if (pw_stream_get_state (pwsink->stream->pwstream, &error) != PW_STREAM_STATE_STREAMING) if (pw_stream_get_state (pwsink->stream->pwstream, &error) != PW_STREAM_STATE_STREAMING) {
gst_buffer_unref (b);
goto done_unlock; goto done_unlock;
} }
do_send_buffer (pwsink, buffer); do_send_buffer (pwsink, b);
if (unref_buffer) gst_buffer_unref (b);
gst_buffer_unref (buffer);
if (pw_stream_is_driving (pwsink->stream->pwstream)) if (pw_stream_is_driving (pwsink->stream->pwstream))
pw_stream_trigger_process (pwsink->stream->pwstream); pw_stream_trigger_process (pwsink->stream->pwstream);
}
} else {
do_send_buffer (pwsink, buffer);
if (pw_stream_is_driving (pwsink->stream->pwstream))
pw_stream_trigger_process (pwsink->stream->pwstream);
}
done_unlock: done_unlock:
pw_thread_loop_unlock (pwsink->stream->core->loop); pw_thread_loop_unlock (pwsink->stream->core->loop);