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v4l2: Reset transfer in gst_v4l2_object_acquire_format()

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get_colorspace() checks input caps transfer when mapping V4L2_XFER_FUNC_709
back to V4L2_COLORSPACE_BT2020 and GST_VIDEO_TRANSFER_BT2020_12. After
receiving source change event, decoder will G_FMT and S_FMT again. So need
to reset transfer when acquiring format to avoid using the old transfer.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2505>
This commit is contained in:
Hou Qi 2022-05-24 16:07:13 +08:00 committed by Tim-Philipp Müller
parent 759321f7bc
commit b364b3cdc9
1 changed files with 1 additions and 0 deletions
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subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
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@ -4177,6 +4177,7 @@ gst_v4l2_object_acquire_format (GstV4l2Object * v4l2object, GstVideoInfo * info)
gst_video_info_init (info); gst_video_info_init (info);
gst_video_alignment_reset (&align); gst_video_alignment_reset (&align);
v4l2object->transfer = GST_VIDEO_TRANSFER_UNKNOWN;
memset (&fmt, 0x00, sizeof (struct v4l2_format)); memset (&fmt, 0x00, sizeof (struct v4l2_format));
fmt.type = v4l2object->type; fmt.type = v4l2object->type;