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v4l2codecs: vp8: Check kernel version

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Print a warning if the kernel version is too old.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2075>
This commit is contained in:
Ezequiel Garcia 2021-03-03 15:38:45 -03:00 committed by Nicolas Dufresne
parent d036b4aad4
commit 3b42c1878d
1 changed files with 14 additions and 0 deletions
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14
sys/v4l2codecs/gstv4l2codecvp8dec.c
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@ -26,6 +26,12 @@
#include "gstv4l2codecpool.h"
#include "gstv4l2codecvp8dec.h"
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#define V4L2_MIN_KERNEL_VER_MAJOR 5
#define V4L2_MIN_KERNEL_VER_MINOR 13
#define V4L2_MIN_KERNEL_VERSION KERNEL_VERSION(V4L2_MIN_KERNEL_VER_MAJOR, V4L2_MIN_KERNEL_VER_MINOR, 0)
GST_DEBUG_CATEGORY_STATIC (v4l2_vp8dec_debug);
#define GST_CAT_DEFAULT v4l2_vp8dec_debug
@ -103,6 +109,7 @@ static gboolean
gst_v4l2_codec_vp8_dec_open (GstVideoDecoder * decoder)
{
GstV4l2CodecVp8Dec *self = GST_V4L2_CODEC_VP8_DEC (decoder);
guint version;
if (!gst_v4l2_decoder_open (self->decoder)) {
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
@ -111,6 +118,13 @@ gst_v4l2_codec_vp8_dec_open (GstVideoDecoder * decoder)
return FALSE;
}
version = gst_v4l2_decoder_get_version (self->decoder);
if (version < V4L2_MIN_KERNEL_VERSION)
GST_WARNING_OBJECT (self,
"V4L2 API v%u.%u too old, at least v%u.%u required",
(version >> 16) & 0xff, (version >> 8) & 0xff,
V4L2_MIN_KERNEL_VER_MAJOR, V4L2_MIN_KERNEL_VER_MINOR);
return TRUE;
}