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v4l2: handle 0x0 sizes gracefully

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Also ignore 0x0 sizes in the fallback case and assume the size can be
anything between 1x1 and MAXxMAX.

This fixes the case where a width=0, height=0 caps are created. Whith
this patch the caps will contain width=[1,MAX], height=[1,MAX].

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1396>
This commit is contained in:
Wim Taymans 2021-11-29 15:35:36 +01:00
parent e90859f4d8
commit 9aaef931bf
1 changed files with 4 additions and 0 deletions
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4
subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
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@ -2933,6 +2933,10 @@ default_frame_sizes:
"Could not probe maximum capture size for pixelformat %" "Could not probe maximum capture size for pixelformat %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (pixelformat)); GST_FOURCC_FORMAT, GST_FOURCC_ARGS (pixelformat));
} }
if (min_w == 0 || min_h == 0)
min_w = min_h = 1;
if (max_w == 0 || max_h == 0)
max_w = max_h = GST_V4L2_MAX_SIZE;
/* Since we can't get framerate directly, try to use the current norm */ /* Since we can't get framerate directly, try to use the current norm */
if (v4l2object->tv_norm && v4l2object->norms) { if (v4l2object->tv_norm && v4l2object->norms) {