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Sun, 27 Oct 2019 22:56:45 +0100 (CET) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: linux-sunxi@googlegroups.com Subject: Re: [linux-sunxi] [PATCH 4/4] media: cedrus: hevc: Add support for multiple slices Date: Sun, 27 Oct 2019 22:56:45 +0100 Message-ID: <3093393.es1Za2YUDY@jernej-laptop> In-Reply-To: <20191026174703.1120023-5-jernej.skrabec@siol.net> References: <20191026174703.1120023-1-jernej.skrabec@siol.net> <20191026174703.1120023-5-jernej.skrabec@siol.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191027_145657_662119_B0910C34 X-CRM114-Status: GOOD ( 16.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, boris.brezillon@collabora.com, p.zabel@pengutronix.de, hverkuil-cisco@xs4all.nl, mchehab@kernel.org, ezequiel@collabora.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Dne sobota, 26. oktober 2019 ob 19:47:03 CET je Jernej Skrabec napisal(a): > Now that segment address is available, support for multi-slice frames > can be easily added. > > Signed-off-by: Jernej Skrabec > --- > .../staging/media/sunxi/cedrus/cedrus_h265.c | 21 +++++++++++++++---- > .../staging/media/sunxi/cedrus/cedrus_video.c | 1 + > 2 files changed, 18 insertions(+), 4 deletions(-) > > diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c > b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c index > 888bfd5ca224..e909adf6f30f 100644 > --- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c > +++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c > @@ -366,15 +366,28 @@ static void cedrus_h265_setup(struct cedrus_ctx *ctx, > reg = VE_DEC_H265_BITS_END_ADDR_BASE(src_buf_end_addr); > cedrus_write(dev, VE_DEC_H265_BITS_END_ADDR, reg); > > - /* Coding tree block address: start at the beginning. */ > + /* Coding tree block address */ > reg = VE_DEC_H265_DEC_CTB_ADDR_X(0) | VE_DEC_H265_DEC_CTB_ADDR_Y(0); > + if (!ctx->fh.m2m_ctx->new_frame) { There is no reason why would this block be guarded by above if clause. I'll remove it in next revision. However, it uncovered a bug where new_frame is set to true for every slice. I have to debug this further. At this point I can't say for sure if it is in kernel or in ffmpeg. Best regards, Jernej > + unsigned int log2_max_luma_coding_block_size = > + sps->log2_min_luma_coding_block_size_minus3 + 3 + > + sps->log2_diff_max_min_luma_coding_block_size; > + unsigned int ctb_size_luma = > + 1UL << log2_max_luma_coding_block_size; > + unsigned int width_in_ctb_luma = > + DIV_ROUND_UP(sps->pic_width_in_luma_samples, ctb_size_luma); > + > + reg = VE_DEC_H265_DEC_CTB_ADDR_X(slice_params- >slice_segment_addr % > width_in_ctb_luma); + reg |= > VE_DEC_H265_DEC_CTB_ADDR_Y(slice_params->slice_segment_addr / > width_in_ctb_luma); + } > cedrus_write(dev, VE_DEC_H265_DEC_CTB_ADDR, reg); > > cedrus_write(dev, VE_DEC_H265_TILE_START_CTB, 0); > cedrus_write(dev, VE_DEC_H265_TILE_END_CTB, 0); > > /* Clear the number of correctly-decoded coding tree blocks. */ > - cedrus_write(dev, VE_DEC_H265_DEC_CTB_NUM, 0); > + if (ctx->fh.m2m_ctx->new_frame) > + cedrus_write(dev, VE_DEC_H265_DEC_CTB_NUM, 0); > > /* Initialize bitstream access. */ > cedrus_write(dev, VE_DEC_H265_TRIGGER, VE_DEC_H265_TRIGGER_INIT_SWDEC); > @@ -523,8 +536,8 @@ static void cedrus_h265_setup(struct cedrus_ctx *ctx, > V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT, > pps->flags); > > - /* FIXME: For multi-slice support. */ > - reg |= VE_DEC_H265_DEC_SLICE_HDR_INFO0_FLAG_FIRST_SLICE_SEGMENT_IN_PIC; > + if (ctx->fh.m2m_ctx->new_frame) > + reg |= VE_DEC_H265_DEC_SLICE_HDR_INFO0_FLAG_FIRST_SLICE_SEGMENT_IN_PIC; > > cedrus_write(dev, VE_DEC_H265_DEC_SLICE_HDR_INFO0, reg); > > diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c > b/drivers/staging/media/sunxi/cedrus/cedrus_video.c index > 15cf1f10221b..497b1199d3fe 100644 > --- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c > +++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c > @@ -311,6 +311,7 @@ static int cedrus_s_fmt_vid_out(struct file *file, void > *priv, > > switch (ctx->src_fmt.pixelformat) { > case V4L2_PIX_FMT_H264_SLICE: > + case V4L2_PIX_FMT_HEVC_SLICE: > vq->subsystem_flags |= > VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF; > break; _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel