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qtdemux: send GAP events for lagging audio and video streams too

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The logic is taken straight from matroskademux, see
77403d0afe
This commit is contained in:
Mathieu Duponchelle 2019-12-11 17:30:50 +01:00 committed by GStreamer Merge Bot
parent 5009cad220
commit 625eb00c06
1 changed files with 14 additions and 7 deletions
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21
gst/isomp4/qtdemux.c
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@ -6359,18 +6359,25 @@ gst_qtdemux_loop_state_movie (GstQTDemux * qtdemux)
/* gap events for subtitle streams */
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
stream = QTDEMUX_NTH_STREAM (qtdemux, i);
if (stream->pad && (stream->subtype == FOURCC_subp
|| stream->subtype == FOURCC_text
|| stream->subtype == FOURCC_sbtl)) {
/* send one second gap events until the stream catches up */
if (stream->pad) {
GstClockTime gap_threshold;
/* Only send gap events on non-subtitle streams if lagging way behind. */
if (stream->subtype == FOURCC_subp
|| stream->subtype == FOURCC_text || stream->subtype == FOURCC_sbtl)
gap_threshold = 1 * GST_SECOND;
else
gap_threshold = 3 * GST_SECOND;
/* send gap events until the stream catches up */
/* gaps can only be sent after segment is activated (segment.stop is no longer -1) */
while (GST_CLOCK_TIME_IS_VALID (stream->segment.stop) &&
GST_CLOCK_TIME_IS_VALID (stream->segment.position) &&
stream->segment.position + GST_SECOND < min_time) {
stream->segment.position + gap_threshold < min_time) {
GstEvent *gap =
gst_event_new_gap (stream->segment.position, GST_SECOND);
gst_event_new_gap (stream->segment.position, gap_threshold);
gst_pad_push_event (stream->pad, gap);
stream->segment.position += GST_SECOND;
stream->segment.position += gap_threshold;
}
}
}