GetTime may return an error indication that the sample has not timestamps, or
may return a NULL start time. In those cases, fall back to graph time
Signed-off-by: Diederick Niehorster <dcni...@gmail.com>
---
libavdevice/dshow_pin.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavdevice/dshow_pin.c b/libavdevice/dshow_pin.c
index 8408af26da..5b9e91002d 100644
--- a/libavdevice/dshow_pin.c
+++ b/libavdevice/dshow_pin.c
@@ -320,8 +320,10 @@ long ff_dshow_meminputpin_Receive(DShowMemInputPin *this,
IMediaSample *sample)
/* PTS from video devices is unreliable. */
curtime = graphtime;
} else {
- IMediaSample_GetTime(sample, &curtime, &dummy);
- if(curtime > 400000000000000000LL) {
+ HRESULT hr = IMediaSample_GetTime(sample, &curtime, &dummy);
+ if (hr==VFW_E_SAMPLE_TIME_NOT_SET || curtime==NULL) {
+ curtime = graphtime;
+ } else if (curtime > 400000000000000000LL) {
/* initial frames sometimes start < 0 (shown as a very large
number here,
like 437650244077016960 which FFmpeg doesn't like.
TODO figure out math. For now just drop them. */
--
2.28.0.windows.1
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