On 14/05/14 08:59, Arun Kumar K wrote:
> From: Pawel Osciak <posciak@xxxxxxxxxxxx>
>
> When a resolution change point is reached, queue an event to signal the
> userspace that a new set of buffers is required before decoding can
> continue.
>
> Signed-off-by: Pawel Osciak <posciak@xxxxxxxxxxxx>
> Signed-off-by: Arun Kumar K <arun.kk@xxxxxxxxxxx>
Acked-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
> ---
> drivers/media/platform/s5p-mfc/s5p_mfc.c | 8 ++++++++
> drivers/media/platform/s5p-mfc/s5p_mfc_dec.c | 2 ++
> 2 files changed, 10 insertions(+)
>
> diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
> index 6b04f17..f3a4576 100644
> --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
> +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
> @@ -349,8 +349,16 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
> /* All frames remaining in the buffer have been extracted */
> if (dst_frame_status == S5P_FIMV_DEC_STATUS_DECODING_EMPTY) {
> if (ctx->state == MFCINST_RES_CHANGE_FLUSH) {
> + static const struct v4l2_event ev_src_ch = {
> + .type = V4L2_EVENT_SOURCE_CHANGE,
> + .u.src_change.changes =
> + V4L2_EVENT_SRC_CH_RESOLUTION,
> + };
> +
> s5p_mfc_handle_frame_all_extracted(ctx);
> ctx->state = MFCINST_RES_CHANGE_END;
> + v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
> +
> goto leave_handle_frame;
> } else {
> s5p_mfc_handle_frame_all_extracted(ctx);
> diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
> index 4586186..326d8db 100644
> --- a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
> +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
> @@ -851,6 +851,8 @@ static int vidioc_subscribe_event(struct v4l2_fh *fh,
> switch (sub->type) {
> case V4L2_EVENT_EOS:
> return v4l2_event_subscribe(fh, sub, 2, NULL);
> + case V4L2_EVENT_SOURCE_CHANGE:
> + return v4l2_src_change_event_subscribe(fh, sub);
> default:
> return -EINVAL;
> }
--
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