From fd21d970605f282e08861db62b9da3a6f9ea32bc Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Mon, 8 Jan 2024 20:06:24 +0900
Subject: [PATCH] qtdemux: Handle keyunit trick mode in case of push mode too

Skip non-keyframe video frames if trickmode-keyunit flag is set

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5900>
---
 subprojects/gst-plugins-good/gst/isomp4/qtdemux.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c b/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
index ee01e280af..32df6eeb85 100644
--- a/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
+++ b/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
@@ -8463,6 +8463,13 @@ gst_qtdemux_process_adapter (GstQTDemux * demux, gboolean force)
             gst_adapter_flush (demux->adapter, demux->neededbytes);
 
             ret = GST_FLOW_EOS;
+          } else if ((demux->segment.flags &
+                  GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS) != 0 &&
+              stream->subtype == FOURCC_vide && !keyframe) {
+            GST_LOG_OBJECT (demux, "Skipping non-keyframe on track-id %u",
+                stream->track_id);
+            gst_adapter_flush (demux->adapter, demux->neededbytes);
+            ret = GST_FLOW_OK;
           } else {
             GstBuffer *outbuf;