[PATCH v5 3/9] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver
Mauro Carvalho Chehab
mchehab at s-opensource.com
Fri Oct 21 06:08:09 PDT 2016
Em Fri, 21 Oct 2016 11:01:04 -0200
Mauro Carvalho Chehab <mchehab at osg.samsung.com> escreveu:
> Em Fri, 2 Sep 2016 20:19:54 +0800
> Tiffany Lin <tiffany.lin at mediatek.com> escreveu:
>
> > Add v4l2 layer decoder driver for MT8173
> >
> > Signed-off-by: Tiffany Lin <tiffany.lin at mediatek.com>
>
> > +int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
> > +{
> > + int ret = 0;
> > +
> > + switch (fourcc) {
> > + case V4L2_PIX_FMT_H264:
> > + case V4L2_PIX_FMT_VP8:
> > + default:
> > + return -EINVAL;
> > + }
>
> Did you ever test this driver? The above code will *always* return
> -EINVAL, with will cause vidioc_vdec_s_fmt() to always fail!
>
> I suspect that what you wanted to do, instead, is:
>
> switch (fourcc) {
> case V4L2_PIX_FMT_H264:
> case V4L2_PIX_FMT_VP8:
> break;
> default:
> return -EINVAL;
Yeah, a latter patch in this series added a break there.
Thanks,
Mauro
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