linux-kernel - Re: [PATCH 28/28] venus: add HEVC codec support

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Date:   Mon, 7 May 2018 22:24:38 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Hans Verkuil <hverkuil@...all.nl>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Vikash Garodia <vgarodia@...eaurora.org>
Subject: Re: [PATCH 28/28] venus: add HEVC codec support

Hi Hans,

On  7.05.2018 13:39, Hans Verkuil wrote:
> On 24/04/18 14:44, Stanimir Varbanov wrote:
>> This add HEVC codec support for venus versions 3xx and 4xx.
>>
>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
>> ---
>>   drivers/media/platform/qcom/venus/helpers.c | 3 +++
>>   drivers/media/platform/qcom/venus/hfi.c     | 2 ++
>>   drivers/media/platform/qcom/venus/vdec.c    | 4 ++++
>>   drivers/media/platform/qcom/venus/venc.c    | 4 ++++
>>   4 files changed, 13 insertions(+)
>>
>> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
>> index 87dcf9973e6f..fecadba039cf 100644
>> --- a/drivers/media/platform/qcom/venus/helpers.c
>> +++ b/drivers/media/platform/qcom/venus/helpers.c
>> @@ -71,6 +71,9 @@ bool venus_helper_check_codec(struct venus_inst *inst, u32 v4l2_pixfmt)
>>   	case V4L2_PIX_FMT_XVID:
>>   		codec = HFI_VIDEO_CODEC_DIVX;
>>   		break;
>> +	case V4L2_PIX_FMT_HEVC:
>> +		codec = HFI_VIDEO_CODEC_HEVC;
>> +		break;
>>   	default:
>>   		return false;
>>   	}
>> diff --git a/drivers/media/platform/qcom/venus/hfi.c b/drivers/media/platform/qcom/venus/hfi.c
>> index 94ca27b0bb99..24207829982f 100644
>> --- a/drivers/media/platform/qcom/venus/hfi.c
>> +++ b/drivers/media/platform/qcom/venus/hfi.c
>> @@ -49,6 +49,8 @@ static u32 to_codec_type(u32 pixfmt)
>>   		return HFI_VIDEO_CODEC_VP9;
>>   	case V4L2_PIX_FMT_XVID:
>>   		return HFI_VIDEO_CODEC_DIVX;
>> +	case V4L2_PIX_FMT_HEVC:
>> +		return HFI_VIDEO_CODEC_HEVC;
>>   	default:
>>   		return 0;
>>   	}
>> diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
>> index 7deee104ac56..a114f421edad 100644
>> --- a/drivers/media/platform/qcom/venus/vdec.c
>> +++ b/drivers/media/platform/qcom/venus/vdec.c
>> @@ -77,6 +77,10 @@ static const struct venus_format vdec_formats[] = {
>>   		.pixfmt = V4L2_PIX_FMT_XVID,
>>   		.num_planes = 1,
>>   		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
>> +	}, {
>> +		.pixfmt = V4L2_PIX_FMT_HEVC,
>> +		.num_planes = 1,
>> +		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
>>   	},
>>   };
>>   
>> diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
>> index a703bce78abc..fdb76b69786f 100644
>> --- a/drivers/media/platform/qcom/venus/venc.c
>> +++ b/drivers/media/platform/qcom/venus/venc.c
>> @@ -59,6 +59,10 @@ static const struct venus_format venc_formats[] = {
>>   		.pixfmt = V4L2_PIX_FMT_VP8,
>>   		.num_planes = 1,
>>   		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
>> +	}, {
>> +		.pixfmt = V4L2_PIX_FMT_HEVC,
>> +		.num_planes = 1,
>> +		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
>>   	},
>>   };
>>   
>>
> 
> No changes are necessary to venc_set_properties() for HEVC support?
> 
> Just checking, I kind of expected that.

yes, I think so, but will leave that for future updates.

regards,
Stan