[FFmpeg-devel] [PATCH] Add support for RockChip Media Process Platform

[James Almer]

On 9/9/2017 4:00 AM, LongChair . wrote:
> From: LongChair <LongChair at hotmail.com>
> 
> This adds hardware decoding for h264 / HEVC / VP8 using MPP Rockchip API.
> Will return frames holding an AVDRMFrameDescriptor struct in buf[0] that allows drm / dmabuf usage.
> Was tested on RK3288 (TinkerBoard) and RK3328.
> 
> Changes from Previous patch :
> - Frame colorspace info is now filled.
> - Frame interlacing is now filled (Note : currently had a bug in mpp which will be fixed soon by rockchip, will set the frame to progressive).
> - hw_frame_context returns none as format for the rockchip specific 10 bits.
> - Added support for MPEG4 codec
> - Added support for VP9 codec.
> - the ION format has been kept for MPP init (rather than DRM) as this is the only one working right, using DRM format will cause assertions upon close.
> - Other minor comments have been taken into account
> ---
>  Changelog              |   1 +
>  configure              |  16 ++
>  libavcodec/Makefile    |   5 +
>  libavcodec/allcodecs.c |   5 +
>  libavcodec/rkmppdec.c  | 584 +++++++++++++++++++++++++++++++++++++++++++++++++
>  5 files changed, 611 insertions(+)
>  create mode 100644 libavcodec/rkmppdec.c

> +#define RKMPP_DEC(NAME, ID, BSFS) \
> +    RKMPP_DEC_CLASS(NAME) \
> +    AVCodec ff_##NAME##_rkmpp_decoder = { \
> +        .name           = #NAME "_rkmpp", \
> +        .long_name      = NULL_IF_CONFIG_SMALL(#NAME " (rkmpp)"), \
> +        .type           = AVMEDIA_TYPE_VIDEO, \
> +        .id             = ID, \
> +        .priv_data_size = sizeof(RKMPPDecodeContext), \
> +        .init           = rkmpp_init_decoder, \
> +        .close          = rkmpp_close_decoder, \
> +        .receive_frame  = rkmpp_receive_frame, \
> +        .flush          = rkmpp_flush, \
> +        .priv_class     = &rkmpp_##NAME##_dec_class, \
> +        .capabilities   = AV_CODEC_CAP_DELAY, \

Add AV_CODEC_CAP_AVOID_PROBING as well.

> +        .caps_internal  = FF_CODEC_CAP_SETS_PKT_DTS, \

It doesn't look like you're setting pkt_dts anywhere?

> +        .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_DRM_PRIME, \
> +                                                         AV_PIX_FMT_NONE}, \
> +        .bsfs           = BSFS, \
> +    };
> +
> +RKMPP_DEC(h264,  AV_CODEC_ID_H264,          "h264_mp4toannexb")
> +RKMPP_DEC(hevc,  AV_CODEC_ID_HEVC,          "hevc_mp4toannexb")
> +RKMPP_DEC(mpeg4, AV_CODEC_ID_MPEG4,         NULL)
> +RKMPP_DEC(vp8,   AV_CODEC_ID_VP8,           NULL)
> +RKMPP_DEC(vp9,   AV_CODEC_ID_VP9,           NULL)
>