On 11/26/2018 11:12 AM, Malathi Gottam wrote:
> Accept the buffer size requested by client and compare it
> against driver calculated size and set the maximum to
> bitstream plane.
>
> Signed-off-by: Malathi Gottam <mgottam@xxxxxxxxxxxxxx>
Sorry, this isn't allowed. It is the driver that sets the sizeimage value,
never the other way around.
If you need to allocate larger buffers, then use VIDIOC_CREATE_BUFS instead
of VIDIOC_REQBUFS.
What problem are you trying to solve with this patch?
Regards,
Hans
> ---
> drivers/media/platform/qcom/venus/venc.c | 13 +++++++++----
> 1 file changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
> index ce85962..e43dd3d 100644
> --- a/drivers/media/platform/qcom/venus/venc.c
> +++ b/drivers/media/platform/qcom/venus/venc.c
> @@ -303,6 +303,7 @@ static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
> struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
> struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
> const struct venus_format *fmt;
> + u32 sizeimage;
>
> memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
> memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
> @@ -334,9 +335,10 @@ static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
> pixmp->num_planes = fmt->num_planes;
> pixmp->flags = 0;
>
> - pfmt[0].sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
> - pixmp->width,
> - pixmp->height);
> + sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
> + pixmp->width,
> + pixmp->height);
> + pfmt[0].sizeimage = max(ALIGN(pfmt[0].sizeimage, SZ_4K), sizeimage);
>
> if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
> pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
> @@ -408,8 +410,10 @@ static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
>
> if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
> inst->fmt_out = fmt;
> - else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
> + else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
> inst->fmt_cap = fmt;
> + inst->output_buf_size = pixmp->plane_fmt[0].sizeimage;
> + }
>
> return 0;
> }
> @@ -908,6 +912,7 @@ static int venc_queue_setup(struct vb2_queue *q,
> sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
> inst->width,
> inst->height);
> + sizes[0] = max(sizes[0], inst->output_buf_size);
> inst->output_buf_size = sizes[0];
> break;
> default:
>
