From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sylwester Nawrocki Subject: Re: [PATCH v5 2/2] [media] s5p-mfc: Add support for resolution change event Date: Wed, 14 May 2014 11:10:02 +0200 Message-ID: <537332EA.9020702@samsung.com> References: <1400050783-2158-1-git-send-email-arun.kk@samsung.com> <1400050783-2158-3-git-send-email-arun.kk@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mailout3.w1.samsung.com ([210.118.77.13]:47816 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752836AbaENJKI (ORCPT ); Wed, 14 May 2014 05:10:08 -0400 In-reply-to: <1400050783-2158-3-git-send-email-arun.kk@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Arun Kumar K Cc: linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org, k.debski@samsung.com, hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, posciak@chromium.org, arunkk.samsung@gmail.com On 14/05/14 08:59, Arun Kumar K wrote: > From: Pawel Osciak > > 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 > Signed-off-by: Arun Kumar K Acked-by: Sylwester Nawrocki > --- > 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; > }