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v4l2: object: Adjust DMABuf negotiation base on io-mode

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If the io-mode is forced by user to MMAP, USERPTR or RW, don't try and
negotiated DMABuf caps feature. This would otherwise fail later.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7633>
This commit is contained in:
Nicolas Dufresne 2024-12-18 15:30:24 -05:00 committed by GStreamer Marge Bot
parent 3ec1feb88f
commit 3ee04883ee
1 changed files with 13 additions and 1 deletions
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14
subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
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@ -5190,6 +5190,7 @@ gst_v4l2_object_probe_caps (GstV4l2Object * v4l2object, GstCaps * filter)
GSList *walk;
GSList *formats;
guint32 fourcc = 0;
gboolean enable_dmabuf = FALSE;
if (v4l2object->fmtdesc)
fourcc = GST_V4L2_PIXELFORMAT (v4l2object);
@ -5197,6 +5198,17 @@ gst_v4l2_object_probe_caps (GstV4l2Object * v4l2object, GstCaps * filter)
gst_v4l2_object_clear_format_list (v4l2object);
formats = gst_v4l2_object_get_format_list (v4l2object);
switch (v4l2object->req_mode) {
case GST_V4L2_IO_AUTO:
case GST_V4L2_IO_DMABUF:
case GST_V4L2_IO_DMABUF_IMPORT:
enable_dmabuf = TRUE;
break;
default:
break;
}
/* Recover the fmtdesc, it may no longer exist, in which case it will be set
* to null */
if (fourcc)
@ -5250,7 +5262,7 @@ gst_v4l2_object_probe_caps (GstV4l2Object * v4l2object, GstCaps * filter)
sysmem_tmpl =
gst_v4l2_object_v4l2fourcc_to_bare_struct (format->pixelformat,
&dmabuf_tmpl);
enable_dmabuf ? &dmabuf_tmpl : NULL);
if (!sysmem_tmpl && !dmabuf_tmpl) {
GST_DEBUG_OBJECT (v4l2object->dbg_obj,