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vaapipostproc: don't crash with dynamic framerate (0/1).

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Avoid reaching an assert if dynamic framerates (0/1) are used. One
way to solve this problem is to just stick field_duration to zero.
However, this means that, in presence of interlaced streams, the
very first field will never be displayed if precise presentation
timestamps are honoured.

https://bugzilla.gnome.org/show_bug.cgi?id=729604
This commit is contained in:
Gwenole Beauchesne 2014-06-19 13:35:23 +02:00
parent 1a2c06a81c
commit 9d417815ab
1 changed files with 5 additions and 4 deletions
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9
gst/vaapi/gstvaapipostproc.c
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@ -522,7 +522,8 @@ gst_vaapipostproc_process_vpp(GstBaseTransform *trans, GstBuffer *inbuf,
/* Reset deinterlacing state when there is a discontinuity */
if (prev_buf && (prev_pts = GST_BUFFER_TIMESTAMP(prev_buf)) != pts) {
const GstClockTimeDiff pts_diff = GST_CLOCK_DIFF(prev_pts, pts);
if (pts_diff < 0 || pts_diff > postproc->field_duration * 2)
if (pts_diff < 0 || (postproc->field_duration > 0 &&
pts_diff > postproc->field_duration * 2))
ds_reset(ds);
}
}
@ -823,9 +824,9 @@ gst_vaapipostproc_update_sink_caps(GstVaapiPostproc *postproc, GstCaps *caps,
deinterlace = is_deinterlace_enabled(postproc, &vi);
if (deinterlace)
postproc->flags |= GST_VAAPI_POSTPROC_FLAG_DEINTERLACE;
postproc->field_duration = gst_util_uint64_scale(
GST_SECOND, GST_VIDEO_INFO_FPS_D(&vi),
(1 + deinterlace) * GST_VIDEO_INFO_FPS_N(&vi));
postproc->field_duration = GST_VIDEO_INFO_FPS_N(&vi) > 0 ?
gst_util_uint64_scale(GST_SECOND, GST_VIDEO_INFO_FPS_D(&vi),
(1 + deinterlace) * GST_VIDEO_INFO_FPS_N(&vi)) : 0;
postproc->is_raw_yuv = GST_VIDEO_INFO_IS_YUV(&vi);
return TRUE;