splitmuxsink: Avoid deadlock on release, harder

Unlock after broadcasting and wait for the pad to be free before
relocking the muxer, giving the input probe a chance to react to our
broadcast.

Improves the fix from
https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/838.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1030>
This commit is contained in:
Jan Alexander Steffens (heftig) 2021-01-26 16:33:25 +01:00 committed by GStreamer Marge Bot
parent bf9092592e
commit fd27ee1537

View file

@ -3576,6 +3576,9 @@ gst_splitmux_sink_release_pad (GstElement * element, GstPad * pad)
/* Remove the context from our consideration */
splitmux->contexts = g_list_remove (splitmux->contexts, ctx);
ctx->is_releasing = TRUE;
GST_SPLITMUX_BROADCAST_INPUT (splitmux);
GST_SPLITMUX_UNLOCK (splitmux);
if (ctx->sink_pad_block_id) {
@ -3586,10 +3589,10 @@ gst_splitmux_sink_release_pad (GstElement * element, GstPad * pad)
if (ctx->src_pad_block_id)
gst_pad_remove_probe (ctx->srcpad, ctx->src_pad_block_id);
/* Wait for the pad to be free */
GST_PAD_STREAM_LOCK (pad);
GST_SPLITMUX_LOCK (splitmux);
ctx->is_releasing = TRUE;
GST_SPLITMUX_BROADCAST_INPUT (splitmux);
GST_PAD_STREAM_UNLOCK (pad);
/* Can release the context now */
mq_stream_ctx_free (ctx);