[FFmpeg-devel] [PATCH 1/5] avcodec/qsvdec_other: refact, use DEFINE_QSV_DECODER to remove duplicate code

Guangxin Xu oddstone at gmail.com
Wed Dec 2 07:38:58 EET 2020


Hi Haihao,
If you check the final code. The QSVOtherContext and QSVH2645Context will
be unified to QSVDecContext. It's no need to pass the priv_data_size.

In the final version, we have two macros
DEFINE_QSV_DECODER_WITH_OPTION for h265 only. Maybe av1 can use it for film
grain too.
DEFINE_QSV_DECODER for other codecs.

thanks

On Wed, Dec 2, 2020 at 12:38 PM Xiang, Haihao <haihao.xiang at intel.com>
wrote:

>
> > ---
> >  libavcodec/qsvdec_other.c | 188 ++++++++------------------------------
> >  1 file changed, 36 insertions(+), 152 deletions(-)
> >
> > diff --git a/libavcodec/qsvdec_other.c b/libavcodec/qsvdec_other.c
> > index 2775e07955..266ac9f2e5 100644
> > --- a/libavcodec/qsvdec_other.c
> > +++ b/libavcodec/qsvdec_other.c
> > @@ -189,170 +189,54 @@ static const AVOption options[] = {
> >      { NULL },
> >  };
> >
> > -#if CONFIG_MPEG2_QSV_DECODER
> > -static const AVClass mpeg2_qsv_class = {
> > -    .class_name = "mpeg2_qsv",
> > -    .item_name  = av_default_item_name,
> > -    .option     = options,
> > -    .version    = LIBAVUTIL_VERSION_INT,
> > -};
> > +#define DEFINE_QSV_DECODER(x, X, bsf_name) \
>
>
> How about to use the same macro for all QSV decoders? Compared
> ff_mpeg2_qsv_decoder in qsvdec_other.c and ffmpeg_h264_qsv_decoder in
> qsvh2645.c, besides x, X, bsf_name, option and priv_data_size are
> different too.
> So we may define a macro below in qsvdec.h and use this macro for all QSV
> decoders.
>
> #define DEFINE_QSV_DECODER(x, X, bsf_name, option, priv_data_size) \
> ...
>
> Thanks
> Haihao
>
> > +static const AVClass x##_qsv_class = { \
> > +    .class_name = #x "_qsv", \
> > +    .item_name  = av_default_item_name, \
> > +    .option     = options, \
> > +    .version    = LIBAVUTIL_VERSION_INT, \
> > +}; \
> > +AVCodec ff_##x##_qsv_decoder = { \
> > +    .name           = #x "_qsv", \
> > +    .long_name      = NULL_IF_CONFIG_SMALL(#X " video (Intel Quick Sync
> Video
> > acceleration)"), \
> > +    .priv_data_size = sizeof(QSVOtherContext), \
> > +    .type           = AVMEDIA_TYPE_VIDEO, \
> > +    .id             = AV_CODEC_ID_##X, \
> > +    .init           = qsv_decode_init, \
> > +    .decode         = qsv_decode_frame, \
> > +    .flush          = qsv_decode_flush, \
> > +    .close          = qsv_decode_close, \
> > +    .bsfs           = bsf_name, \
> > +    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID, \
> > +    .priv_class     = &x##_qsv_class, \
> > +    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12, \
> > +                                                    AV_PIX_FMT_P010, \
> > +                                                    AV_PIX_FMT_QSV, \
> > +                                                    AV_PIX_FMT_NONE }, \
> > +    .hw_configs     = ff_qsv_hw_configs, \
> > +    .wrapper_name   = "qsv", \
> > +}; \
> >
> > -AVCodec ff_mpeg2_qsv_decoder = {
> > -    .name           = "mpeg2_qsv",
> > -    .long_name      = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick
> Sync
> > Video acceleration)"),
> > -    .priv_data_size = sizeof(QSVOtherContext),
> > -    .type           = AVMEDIA_TYPE_VIDEO,
> > -    .id             = AV_CODEC_ID_MPEG2VIDEO,
> > -    .init           = qsv_decode_init,
> > -    .decode         = qsv_decode_frame,
> > -    .flush          = qsv_decode_flush,
> > -    .close          = qsv_decode_close,
> > -    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
> > -    .priv_class     = &mpeg2_qsv_class,
> > -    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
> > -                                                    AV_PIX_FMT_QSV,
> > -                                                    AV_PIX_FMT_NONE },
> > -    .hw_configs     = ff_qsv_hw_configs,
> > -    .wrapper_name   = "qsv",
> > -};
> > +#if CONFIG_MPEG2_QSV_DECODER
> > +DEFINE_QSV_DECODER(mpeg2, MPEG2VIDEO, NULL)
> >  #endif
> >
> >  #if CONFIG_VC1_QSV_DECODER
> > -static const AVClass vc1_qsv_class = {
> > -    .class_name = "vc1_qsv",
> > -    .item_name  = av_default_item_name,
> > -    .option     = options,
> > -    .version    = LIBAVUTIL_VERSION_INT,
> > -};
> > -
> > -AVCodec ff_vc1_qsv_decoder = {
> > -    .name           = "vc1_qsv",
> > -    .long_name      = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync
> > Video acceleration)"),
> > -    .priv_data_size = sizeof(QSVOtherContext),
> > -    .type           = AVMEDIA_TYPE_VIDEO,
> > -    .id             = AV_CODEC_ID_VC1,
> > -    .init           = qsv_decode_init,
> > -    .decode         = qsv_decode_frame,
> > -    .flush          = qsv_decode_flush,
> > -    .close          = qsv_decode_close,
> > -    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
> > -    .priv_class     = &vc1_qsv_class,
> > -    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
> > -                                                    AV_PIX_FMT_QSV,
> > -                                                    AV_PIX_FMT_NONE },
> > -    .hw_configs     = ff_qsv_hw_configs,
> > -    .wrapper_name   = "qsv",
> > -};
> > -#endif
> > -
> > -#if CONFIG_VP8_QSV_DECODER
> > -static const AVClass vp8_qsv_class = {
> > -    .class_name = "vp8_qsv",
> > -    .item_name  = av_default_item_name,
> > -    .option     = options,
> > -    .version    = LIBAVUTIL_VERSION_INT,
> > -};
> > -
> > -AVCodec ff_vp8_qsv_decoder = {
> > -    .name           = "vp8_qsv",
> > -    .long_name      = NULL_IF_CONFIG_SMALL("VP8 video (Intel Quick Sync
> Video
> > acceleration)"),
> > -    .priv_data_size = sizeof(QSVOtherContext),
> > -    .type           = AVMEDIA_TYPE_VIDEO,
> > -    .id             = AV_CODEC_ID_VP8,
> > -    .init           = qsv_decode_init,
> > -    .decode         = qsv_decode_frame,
> > -    .flush          = qsv_decode_flush,
> > -    .close          = qsv_decode_close,
> > -    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
> > -    .priv_class     = &vp8_qsv_class,
> > -    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
> > -                                                    AV_PIX_FMT_QSV,
> > -                                                    AV_PIX_FMT_NONE },
> > -    .hw_configs     = ff_qsv_hw_configs,
> > -    .wrapper_name   = "qsv",
> > -};
> > +DEFINE_QSV_DECODER(vc1, VC1, NULL)
> >  #endif
> >
> >  #if CONFIG_MJPEG_QSV_DECODER
> > -static const AVClass mjpeg_qsv_class = {
> > -    .class_name = "mjpeg_qsv",
> > -    .item_name  = av_default_item_name,
> > -    .option     = options,
> > -    .version    = LIBAVUTIL_VERSION_INT,
> > -};
> > +DEFINE_QSV_DECODER(mjpeg, MJPEG, NULL)
> > +#endif
> >
> > -AVCodec ff_mjpeg_qsv_decoder = {
> > -    .name           = "mjpeg_qsv",
> > -    .long_name      = NULL_IF_CONFIG_SMALL("MJPEG video (Intel Quick
> Sync
> > Video acceleration)"),
> > -    .priv_data_size = sizeof(QSVOtherContext),
> > -    .type           = AVMEDIA_TYPE_VIDEO,
> > -    .id             = AV_CODEC_ID_MJPEG,
> > -    .init           = qsv_decode_init,
> > -    .decode         = qsv_decode_frame,
> > -    .flush          = qsv_decode_flush,
> > -    .close          = qsv_decode_close,
> > -    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
> > -    .priv_class     = &mjpeg_qsv_class,
> > -    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
> > -                                                    AV_PIX_FMT_QSV,
> > -                                                    AV_PIX_FMT_NONE },
> > -};
> > +#if CONFIG_VP8_QSV_DECODER
> > +DEFINE_QSV_DECODER(vp8, VP8, NULL)
> >  #endif
> >
> >  #if CONFIG_VP9_QSV_DECODER
> > -static const AVClass vp9_qsv_class = {
> > -    .class_name = "vp9_qsv",
> > -    .item_name  = av_default_item_name,
> > -    .option     = options,
> > -    .version    = LIBAVUTIL_VERSION_INT,
> > -};
> > -
> > -AVCodec ff_vp9_qsv_decoder = {
> > -    .name           = "vp9_qsv",
> > -    .long_name      = NULL_IF_CONFIG_SMALL("VP9 video (Intel Quick Sync
> Video
> > acceleration)"),
> > -    .priv_data_size = sizeof(QSVOtherContext),
> > -    .type           = AVMEDIA_TYPE_VIDEO,
> > -    .id             = AV_CODEC_ID_VP9,
> > -    .init           = qsv_decode_init,
> > -    .decode         = qsv_decode_frame,
> > -    .flush          = qsv_decode_flush,
> > -    .close          = qsv_decode_close,
> > -    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
> > -    .priv_class     = &vp9_qsv_class,
> > -    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
> > -                                                    AV_PIX_FMT_P010,
> > -                                                    AV_PIX_FMT_QSV,
> > -                                                    AV_PIX_FMT_NONE },
> > -    .hw_configs     = ff_qsv_hw_configs,
> > -    .wrapper_name   = "qsv",
> > -};
> > +DEFINE_QSV_DECODER(vp9, VP9, NULL)
> >  #endif
> >
> >  #if CONFIG_AV1_QSV_DECODER
> > -static const AVClass av1_qsv_class = {
> > -    .class_name = "av1_qsv",
> > -    .item_name  = av_default_item_name,
> > -    .option     = options,
> > -    .version    = LIBAVUTIL_VERSION_INT,
> > -};
> > -
> > -AVCodec ff_av1_qsv_decoder = {
> > -    .name           = "av1_qsv",
> > -    .long_name      = NULL_IF_CONFIG_SMALL("AV1 video (Intel Quick Sync
> Video
> > acceleration)"),
> > -    .priv_data_size = sizeof(QSVOtherContext),
> > -    .type           = AVMEDIA_TYPE_VIDEO,
> > -    .id             = AV_CODEC_ID_AV1,
> > -    .init           = qsv_decode_init,
> > -    .decode         = qsv_decode_frame,
> > -    .flush          = qsv_decode_flush,
> > -    .close          = qsv_decode_close,
> > -    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 |
> > AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
> > -    .priv_class     = &av1_qsv_class,
> > -    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
> > -                                                    AV_PIX_FMT_P010,
> > -                                                    AV_PIX_FMT_QSV,
> > -                                                    AV_PIX_FMT_NONE },
> > -    .hw_configs     = ff_qsv_hw_configs,
> > -    .wrapper_name   = "qsv",
> > -};
> > +DEFINE_QSV_DECODER(av1, AV1, NULL)
> >  #endif
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".


More information about the ffmpeg-devel mailing list