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Message-ID: <d0ed9ea8-120d-4509-8603-62aa6e0cf851@jkqxz.net>
Date: Mon, 16 Oct 2023 22:41:43 +0100
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To: ffmpeg-devel@ffmpeg.org
References: <20230726113943.1140-1-lucenticus@gmail.com>
 <20231009095340.41807-1-lucenticus@gmail.com>
From: Mark Thompson <sw@jkqxz.net>
In-Reply-To: <20231009095340.41807-1-lucenticus@gmail.com>
Subject: Re: [FFmpeg-devel] [PATCH avcodec/amfenc: 10 bit support, v4,
 1/3] avcodec/amfenc: Fixes the color information in the output.
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On 09/10/2023 10:52, Evgeny Pavlov wrote:
> From: Michael Fabian 'Xaymar' Dirks <michael.dirks@xaymar.com>
> 
> added 10 bit support for amf hevc.
> 
> before:
> 
> command - ffmpeg.exe -hide_banner -y -hwaccel d3d11va -hwaccel_output_format d3d11 -i test_10bit_file.mkv -an -c:v h264_amf res.dx11_hw_h264.mkv
> output -  Format of input frames context (p010le) is not supported by AMF.
> command - ffmpeg.exe -hide_banner -y -hwaccel d3d11va -hwaccel_output_format d3d11 -i test_10bit_file -an -c:v hevc_amf res.dx11_hw_hevc.mkv
> output -  Format of input frames context (p010le) is not supported by AMF.
> 
> after:
> 
> command - ffmpeg.exe -hide_banner -y -hwaccel d3d11va -hwaccel_output_format d3d11 -i test_10bit_file -an -c:v h264_amf res.dx11_hw_h264.mkv
> output -  10-bit input video is not supported by AMF H264 encoder
> command - ffmpeg.exe -hide_banner -y -hwaccel d3d11va -hwaccel_output_format d3d11 -i test_10bit_file -an -c:v hevc_amf res.dx11_hw_hevc.mkv
> output -  10bit file
> 
> v2 - lost line returned in ff_amf_pix_fmts
> v3 - fixes after review
> v4 - extract duplicated code, fix incorrect processing of 10-bit input for h264
> 
> Co-authored-by: Evgeny Pavlov <lucenticus@gmail.com>
> ---
>   libavcodec/amfenc.c      | 37 +++++++++++++++++++++++++++++++++++++
>   libavcodec/amfenc.h      |  3 +++
>   libavcodec/amfenc_h264.c | 24 ++++++++++++++++++++----
>   libavcodec/amfenc_hevc.c | 26 +++++++++++++++++++++++++-
>   4 files changed, 85 insertions(+), 5 deletions(-)
> 
> diff --git a/libavcodec/amfenc.c b/libavcodec/amfenc.c
> index 061859f85c..0bd15dd812 100644
> --- a/libavcodec/amfenc.c
> +++ b/libavcodec/amfenc.c
> @@ -60,6 +60,7 @@ const enum AVPixelFormat ff_amf_pix_fmts[] = {
>   #if CONFIG_DXVA2
>       AV_PIX_FMT_DXVA2_VLD,
>   #endif
> +    AV_PIX_FMT_P010,
>       AV_PIX_FMT_NONE
>   };
>   
> @@ -72,6 +73,7 @@ static const FormatMap format_map[] =
>   {
>       { AV_PIX_FMT_NONE,       AMF_SURFACE_UNKNOWN },
>       { AV_PIX_FMT_NV12,       AMF_SURFACE_NV12 },
> +    { AV_PIX_FMT_P010,       AMF_SURFACE_P010 },
>       { AV_PIX_FMT_BGR0,       AMF_SURFACE_BGRA },
>       { AV_PIX_FMT_RGB0,       AMF_SURFACE_RGBA },
>       { AV_PIX_FMT_GRAY8,      AMF_SURFACE_GRAY8 },
> @@ -785,6 +787,41 @@ int ff_amf_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
>       return ret;
>   }
>   
> +int ff_amf_get_color_profile(AVCodecContext *avctx)
> +{
> +    amf_int64 color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_UNKNOWN;

Can you explain what this CONVERTER_COLOR_PROFILE option is actually doing?

You've passed the primaries and transfer function to AMF options later on, but this seems to then only consider a subset of possible matrices rather than just passing that through as well to write into the VUI metadata.  Why?

(If this isn't supported by AMF then a more correct solution might be to insert a metadata BSF to edit the correct values into the output stream after it has been encoded.)

> +    if (avctx->color_range == AVCOL_RANGE_JPEG) {
> +        /// Color Space for Full (JPEG) Range
> +        switch (avctx->colorspace) {
> +        case AVCOL_SPC_SMPTE170M:
> +            color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_FULL_601;
> +            break;
> +        case AVCOL_SPC_BT709:
> +            color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_FULL_709;
> +            break;
> +        case AVCOL_SPC_BT2020_NCL:
> +        case AVCOL_SPC_BT2020_CL:
> +            color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_FULL_2020;
> +            break;
> +        }
> +    } else {
> +        /// Color Space for Limited (MPEG) range
> +        switch (avctx->colorspace) {
> +        case AVCOL_SPC_SMPTE170M:
> +            color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_601;
> +            break;
> +        case AVCOL_SPC_BT709:
> +            color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_709;
> +            break;
> +        case AVCOL_SPC_BT2020_NCL:
> +        case AVCOL_SPC_BT2020_CL:
> +            color_profile = AMF_VIDEO_CONVERTER_COLOR_PROFILE_2020;
> +            break;
> +        }
> +    }
> +    return color_profile;
> +}
> +
>   const AVCodecHWConfigInternal *const ff_amfenc_hw_configs[] = {
>   #if CONFIG_D3D11VA
>       HW_CONFIG_ENCODER_FRAMES(D3D11, D3D11VA),
> diff --git a/libavcodec/amfenc.h b/libavcodec/amfenc.h
> index 2dbd378ef8..62736ef579 100644
> --- a/libavcodec/amfenc.h
> +++ b/libavcodec/amfenc.h
> @@ -21,6 +21,7 @@
>   
>   #include <AMF/core/Factory.h>
>   
> +#include <AMF/components/ColorSpace.h>
>   #include <AMF/components/VideoEncoderVCE.h>
>   #include <AMF/components/VideoEncoderHEVC.h>
>   #include <AMF/components/VideoEncoderAV1.h>
> @@ -170,6 +171,8 @@ int ff_amf_receive_packet(AVCodecContext *avctx, AVPacket *avpkt);
>   */
>   extern const enum AVPixelFormat ff_amf_pix_fmts[];
>   
> +int ff_amf_get_color_profile(AVCodecContext *avctx);
> +
>   /**
>   * Error handling helper
>   */
> diff --git a/libavcodec/amfenc_h264.c b/libavcodec/amfenc_h264.c
> index bd544d12df..f785e091c9 100644
> --- a/libavcodec/amfenc_h264.c
> +++ b/libavcodec/amfenc_h264.c
> @@ -199,6 +199,8 @@ static av_cold int amf_encode_init_h264(AVCodecContext *avctx)
>       AMFRate                          framerate;
>       AMFSize                          framesize = AMFConstructSize(avctx->width, avctx->height);
>       int                              deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
> +    amf_int64                        color_profile;
> +    enum                             AVPixelFormat pix_fmt;
>   
>       if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
>           framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
> @@ -262,10 +264,24 @@ FF_ENABLE_DEPRECATION_WARNINGS
>           AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_ASPECT_RATIO, ratio);
>       }
>   
> -    /// Color Range (Partial/TV/MPEG or Full/PC/JPEG)
> -    if (avctx->color_range == AVCOL_RANGE_JPEG) {
> -        AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FULL_RANGE_COLOR, 1);
> -    }
> +    color_profile = ff_amf_get_color_profile(avctx);
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_OUTPUT_COLOR_PROFILE, color_profile);
> +
> +    /// Color Range (Support for older Drivers)
> +    AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FULL_RANGE_COLOR, !!(avctx->color_range == AVCOL_RANGE_JPEG));
> +
> +    /// Color Depth
> +    pix_fmt = avctx->hw_frames_ctx ? ((AVHWFramesContext*)avctx->hw_frames_ctx->data)->sw_format
> +                                : avctx->pix_fmt;
> +
> +    // 10 bit input video is not supported by AMF H264 encoder
> +    AMF_RETURN_IF_FALSE(ctx, pix_fmt != AV_PIX_FMT_P010, AVERROR_INVALIDDATA, "10-bit input video is not supported by AMF H264 encoder\n");
> +
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_COLOR_BIT_DEPTH, AMF_COLOR_BIT_DEPTH_8);
> +    /// Color Transfer Characteristics (AMF matches ISO/IEC)
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_OUTPUT_TRANSFER_CHARACTERISTIC, (amf_int64)avctx->color_trc);
> +    /// Color Primaries (AMF matches ISO/IEC)
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_OUTPUT_COLOR_PRIMARIES, (amf_int64)avctx->color_primaries);
>   
>       // autodetect rate control method
>       if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN) {
> diff --git a/libavcodec/amfenc_hevc.c b/libavcodec/amfenc_hevc.c
> index 352564a301..7800695648 100644
> --- a/libavcodec/amfenc_hevc.c
> +++ b/libavcodec/amfenc_hevc.c
> @@ -34,8 +34,9 @@ static const AVOption options[] = {
>       { "high_quality",           "high quality trancoding",                  0, AV_OPT_TYPE_CONST, {.i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_HIGH_QUALITY              }, 0, 0, VE, "usage" },
>       { "lowlatency_high_quality","low latency yet high quality trancoding",  0, AV_OPT_TYPE_CONST, {.i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_LOW_LATENCY_HIGH_QUALITY  }, 0, 0, VE, "usage" },
>   
> -    { "profile",        "Set the profile (default main)",           OFFSET(profile),   AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, VE, "profile" },
> +    { "profile",        "Set the profile (default main)",           OFFSET(profile),   AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN_10, VE, "profile" },
>       { "main",           "", 0,                      AV_OPT_TYPE_CONST,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, 0, 0, VE, "profile" },
> +    { "main10",         "", 0,                      AV_OPT_TYPE_CONST,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN_10 }, 0, 0, VE, "profile" },
>   
>       { "profile_tier",   "Set the profile tier (default main)",      OFFSET(tier), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_MAIN }, AMF_VIDEO_ENCODER_HEVC_TIER_MAIN, AMF_VIDEO_ENCODER_HEVC_TIER_HIGH, VE, "tier" },
>       { "main",           "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_MAIN }, 0, 0, VE, "tier" },
> @@ -160,6 +161,9 @@ static av_cold int amf_encode_init_hevc(AVCodecContext *avctx)
>       AMFRate             framerate;
>       AMFSize             framesize = AMFConstructSize(avctx->width, avctx->height);
>       int                 deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
> +    amf_int64           color_depth;
> +    amf_int64           color_profile;
> +    enum                AVPixelFormat pix_fmt;
>   
>       if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
>           framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
> @@ -183,10 +187,14 @@ FF_ENABLE_DEPRECATION_WARNINGS
>   
>       AMF_ASSIGN_PROPERTY_RATE(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FRAMERATE, framerate);
>   
> +    color_depth = AMF_COLOR_BIT_DEPTH_8;
>       switch (avctx->profile) {
>       case AV_PROFILE_HEVC_MAIN:
>           profile = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN;
>           break;
> +    case FF_PROFILE_HEVC_MAIN_10:

Mixed FF_/AV_PROFILE enums looks a bit odd.

> +        profile = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN_10;
> +        break;
>       default:
>           break;
>       }
> @@ -215,6 +223,22 @@ FF_ENABLE_DEPRECATION_WARNINGS
>           AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ASPECT_RATIO, ratio);
>       }
>   
> +    color_profile = ff_amf_get_color_profile(avctx);
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_OUTPUT_COLOR_PROFILE, color_profile);
> +    /// Color Range (Support for older Drivers)
> +    AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_NOMINAL_RANGE, !!(avctx->color_range == AVCOL_RANGE_JPEG));
> +    /// Color Depth

Move the first setting of color_depth here?  The setting above in unrelated code is easy to miss.

> +    pix_fmt = avctx->hw_frames_ctx ? ((AVHWFramesContext*)avctx->hw_frames_ctx->data)->sw_format
> +                                    : avctx->pix_fmt;
> +    if (pix_fmt == AV_PIX_FMT_P010) {
> +        color_depth = AMF_COLOR_BIT_DEPTH_10;
> +    }
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_COLOR_BIT_DEPTH, color_depth);

Is this the input bit depth or the codec bit depth?  (Can they be different?)

> +    /// Color Transfer Characteristics (AMF matches ISO/IEC)
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_OUTPUT_TRANSFER_CHARACTERISTIC, (amf_int64)avctx->color_trc);
> +    /// Color Primaries (AMF matches ISO/IEC)
> +    AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_OUTPUT_COLOR_PRIMARIES, (amf_int64)avctx->color_primaries);
> +
>       // Picture control properties
>       AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_NUM_GOPS_PER_IDR, ctx->gops_per_idr);
>       AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_GOP_SIZE, avctx->gop_size);

Thanks,

- Mark
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