On Mon, Jul 17, 2017 at 04:40:38PM +0800, Huang, Zhengxu wrote:
>
> From 45be66259e8fb99b05796748ead308f0fc73c68c Mon Sep 17 00:00:00 2001
> From: "Huang, Zhengxu" <zhengxu.maxw...@gmail.com>
> Date: Tue, 18 Jul 2017 01:13:24 +0800
> Subject: [PATCH] libavcodec/mjpeg_qsv: Add the QSV MJPEG encoder
>
> usage:
> -hwaccel qsv -c:v h264_qsv -i in -c:v mjpeg_qsv -quality 80 -f mjpeg out
>
> Signed-off-by: ChaoX A Liu <chaox.a....@gmail.com>
> Signed-off-by: Huang, Zhengxu <zhengxu.maxw...@gmail.com>
> Signed-off-by: Andrew, Zhang <huazh...@gmail.com>
Looks like first name and last name are reversed here.
> configure | 2 ++
> libavcodec/Makefile | 1 +
> libavcodec/allcodecs.c | 1 +
> libavcodec/qsv.c | 3 ++
> libavcodec/qsvenc.c | 14 ++++++++
> libavcodec/qsvenc.h | 3 ++
> libavcodec/qsvenc_jpeg.c | 93
> ++++++++++++++++++++++++++++++++++++++++++++++++
> 7 files changed, 117 insertions(+)
> create mode 100644 libavcodec/qsvenc_jpeg.c
Please add a changelog entry.
> --- a/libavcodec/Makefile
> +++ b/libavcodec/Makefile
> @@ -272,6 +272,7 @@ OBJS-$(CONFIG_H264_NVENC_ENCODER) += nvenc_h264.o
> OBJS-$(CONFIG_H264_OMX_ENCODER) += omx.o
> OBJS-$(CONFIG_H264_QSV_DECODER) += qsvdec_h2645.o
> OBJS-$(CONFIG_H264_QSV_ENCODER) += qsvenc_h264.o
> +OBJS-$(CONFIG_MJPEG_QSV_ENCODER) += qsvenc_jpeg.o
> OBJS-$(CONFIG_H264_VAAPI_ENCODER) += vaapi_encode_h264.o
> vaapi_encode_h26x.o
> OBJS-$(CONFIG_HAP_DECODER) += hapdec.o hap.o
> OBJS-$(CONFIG_HAP_ENCODER) += hapenc.o hap.o
This list was previously in alphabetic order.
> --- a/libavcodec/qsvenc.c
> +++ b/libavcodec/qsvenc.c
> @@ -435,6 +435,15 @@ static int init_video_param(AVCodecContext *avctx,
> QSVEncContext *q)
>
> + if (AV_CODEC_ID_MJPEG == avctx->codec_id) {
We usually reverse the order of comparison.
> + av_log(avctx, AV_LOG_DEBUG, " Init codec is QSV JPEG encode \n");
This log message feels superfluous even in debug mode.
> @@ -623,6 +632,11 @@ static int qsv_retrieve_enc_params(AVCodecContext
> *avctx, QSVEncContext *q)
>
> q->packet_size = q->param.mfx.BufferSizeInKB * 1000;
>
> + // for qsv mjpeg the return value maybe 0 so alloc the buffer
> + if (0 == q->packet_size) {
> + q->packet_size = q->param.mfx.FrameInfo.Height *
> q->param.mfx.FrameInfo.Width * 4;
> + }
Same comment about comparison order and please drop the {}.
> --- a/libavcodec/qsvenc.h
> +++ b/libavcodec/qsvenc.h
> @@ -132,6 +132,9 @@ typedef struct QSVEncContext {
>
> + // options for MJPEG
> + unsigned short quality;
short looks like an odd type to use here, why?
Diego
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