libavfilter/vf_tonemap_vaapi.c - third_party/ffmpeg - Git at Google

 /*
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include <string.h>

 #include "libavutil/avassert.h"
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/mastering_display_metadata.h"

 #include "avfilter.h"
 #include "formats.h"
 #include "internal.h"
 #include "vaapi_vpp.h"

 typedef struct HDRVAAPIContext {
     VAAPIVPPContext vpp_ctx; // must be the first field

     char *output_format_string;

     char *color_primaries_string;
     char *color_transfer_string;
     char *color_matrix_string;

     enum AVColorPrimaries color_primaries;
     enum AVColorTransferCharacteristic color_transfer;
     enum AVColorSpace color_matrix;

     VAHdrMetaDataHDR10  in_metadata;

     AVFrameSideData    *src_display;
     AVFrameSideData    *src_light;
 } HDRVAAPIContext;

 static int tonemap_vaapi_save_metadata(AVFilterContext *avctx, AVFrame *input_frame)
 {
     HDRVAAPIContext *ctx = avctx->priv;
     AVMasteringDisplayMetadata *hdr_meta;
     AVContentLightMetadata *light_meta;

     if (input_frame->color_trc != AVCOL_TRC_SMPTE2084) {
         av_log(avctx, AV_LOG_WARNING, "Only support HDR10 as input for vaapi tone-mapping\n");
     }

     ctx->src_display = av_frame_get_side_data(input_frame,
                                               AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
     if (ctx->src_display) {
         hdr_meta = (AVMasteringDisplayMetadata *)ctx->src_display->data;
         if (!hdr_meta) {
             av_log(avctx, AV_LOG_ERROR, "No mastering display data\n");
             return AVERROR(EINVAL);
         }

         if (hdr_meta->has_luminance) {
             const int luma_den = 10000;
             ctx->in_metadata.max_display_mastering_luminance =
                 lrint(luma_den * av_q2d(hdr_meta->max_luminance));
             ctx->in_metadata.min_display_mastering_luminance =
                 FFMIN(lrint(luma_den * av_q2d(hdr_meta->min_luminance)),
                       ctx->in_metadata.max_display_mastering_luminance);

             av_log(avctx, AV_LOG_DEBUG,
                    "Mastering Display Metadata(in luminance):\n");
             av_log(avctx, AV_LOG_DEBUG,
                    "min_luminance=%u, max_luminance=%u\n",
                    ctx->in_metadata.min_display_mastering_luminance,
                    ctx->in_metadata.max_display_mastering_luminance);
         }

         if (hdr_meta->has_primaries) {
             int i;
             const int mapping[3] = {1, 2, 0};  //green, blue, red
             const int chroma_den = 50000;

             for (i = 0; i < 3; i++) {
                 const int j = mapping[i];
                 ctx->in_metadata.display_primaries_x[i] =
                     FFMIN(lrint(chroma_den *
                                 av_q2d(hdr_meta->display_primaries[j][0])),
                           chroma_den);
                 ctx->in_metadata.display_primaries_y[i] =
                     FFMIN(lrint(chroma_den *
                                 av_q2d(hdr_meta->display_primaries[j][1])),
                           chroma_den);
             }

             ctx->in_metadata.white_point_x =
                 FFMIN(lrint(chroma_den * av_q2d(hdr_meta->white_point[0])),
                       chroma_den);
             ctx->in_metadata.white_point_y =
                 FFMIN(lrint(chroma_den * av_q2d(hdr_meta->white_point[1])),
                       chroma_den);

             av_log(avctx, AV_LOG_DEBUG,
                    "Mastering Display Metadata(in primaries):\n");
             av_log(avctx, AV_LOG_DEBUG,
                    "G(%u,%u) B(%u,%u) R(%u,%u) WP(%u,%u)\n",
                    ctx->in_metadata.display_primaries_x[0],
                    ctx->in_metadata.display_primaries_y[0],
                    ctx->in_metadata.display_primaries_x[1],
                    ctx->in_metadata.display_primaries_y[1],
                    ctx->in_metadata.display_primaries_x[2],
                    ctx->in_metadata.display_primaries_y[2],
                    ctx->in_metadata.white_point_x,
                    ctx->in_metadata.white_point_y);
         }
     } else {
         av_log(avctx, AV_LOG_ERROR, "No mastering display data from input\n");
         return AVERROR(EINVAL);
     }

     ctx->src_light = av_frame_get_side_data(input_frame,
                                             AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
     if (ctx->src_light) {
         light_meta = (AVContentLightMetadata *)ctx->src_light->data;
         if (!light_meta) {
             av_log(avctx, AV_LOG_ERROR, "No light metadata\n");
             return AVERROR(EINVAL);
         }

         ctx->in_metadata.max_content_light_level = light_meta->MaxCLL;
         ctx->in_metadata.max_pic_average_light_level = light_meta->MaxFALL;

         av_log(avctx, AV_LOG_DEBUG,
                "Mastering Content Light Level (in):\n");
         av_log(avctx, AV_LOG_DEBUG,
                "MaxCLL(%u) MaxFALL(%u)\n",
                ctx->in_metadata.max_content_light_level,
                ctx->in_metadata.max_pic_average_light_level);
     } else {
         av_log(avctx, AV_LOG_DEBUG, "No content light level from input\n");
     }
     return 0;
 }

 static int tonemap_vaapi_set_filter_params(AVFilterContext *avctx, AVFrame *input_frame)
 {
     VAAPIVPPContext *vpp_ctx   = avctx->priv;
     HDRVAAPIContext *ctx       = avctx->priv;
     VAStatus vas;
     VAProcFilterParameterBufferHDRToneMapping *hdrtm_param;

     vas = vaMapBuffer(vpp_ctx->hwctx->display, vpp_ctx->filter_buffers[0],
                       (void**)&hdrtm_param);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to map "
                "buffer (%d): %d (%s).\n",
                vpp_ctx->filter_buffers[0], vas, vaErrorStr(vas));
         return AVERROR(EIO);
     }

     memcpy(hdrtm_param->data.metadata, &ctx->in_metadata, sizeof(VAHdrMetaDataHDR10));

     vas = vaUnmapBuffer(vpp_ctx->hwctx->display, vpp_ctx->filter_buffers[0]);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
                "%d (%s).\n", vas, vaErrorStr(vas));
         return AVERROR(EIO);
     }

     return 0;
 }

 static int tonemap_vaapi_build_filter_params(AVFilterContext *avctx)
 {
     VAAPIVPPContext *vpp_ctx   = avctx->priv;
     HDRVAAPIContext *ctx       = avctx->priv;
     VAStatus vas;
     VAProcFilterParameterBufferHDRToneMapping hdrtm_param;
     VAProcFilterCapHighDynamicRange hdr_cap[VAProcHighDynamicRangeMetadataTypeCount];
     int num_query_caps;
     int i;

     memset(&hdrtm_param, 0, sizeof(hdrtm_param));
     memset(&ctx->in_metadata, 0, sizeof(ctx->in_metadata));

     num_query_caps = VAProcHighDynamicRangeMetadataTypeCount;
     vas = vaQueryVideoProcFilterCaps(vpp_ctx->hwctx->display,
                                      vpp_ctx->va_context,
                                      VAProcFilterHighDynamicRangeToneMapping,
                                      &hdr_cap, &num_query_caps);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to query HDR caps "
                "context: %d (%s).\n", vas, vaErrorStr(vas));
         return AVERROR(EIO);
     }

     for (i = 0; i < num_query_caps; i++) {
         if (hdr_cap[i].metadata_type != VAProcHighDynamicRangeMetadataNone)
             break;
     }

     if (i >= num_query_caps) {
         av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support HDR\n");
         return AVERROR(EINVAL);
     }

     for (i = 0; i < num_query_caps; i++) {
         if (VA_TONE_MAPPING_HDR_TO_SDR & hdr_cap[i].caps_flag)
             break;
     }

     if (i >= num_query_caps) {
         av_log(avctx, AV_LOG_ERROR,
                "VAAPI driver doesn't support HDR to SDR\n");
         return AVERROR(EINVAL);
     }

     hdrtm_param.type = VAProcFilterHighDynamicRangeToneMapping;
     hdrtm_param.data.metadata_type = VAProcHighDynamicRangeMetadataHDR10;
     hdrtm_param.data.metadata      = &ctx->in_metadata;
     hdrtm_param.data.metadata_size = sizeof(VAHdrMetaDataHDR10);

     return ff_vaapi_vpp_make_param_buffers(avctx,
                                            VAProcFilterParameterBufferType,
                                            &hdrtm_param, sizeof(hdrtm_param), 1);
 }

 static int tonemap_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
 {
     AVFilterContext *avctx     = inlink->dst;
     AVFilterLink *outlink      = avctx->outputs[0];
     VAAPIVPPContext *vpp_ctx   = avctx->priv;
     HDRVAAPIContext *ctx       = avctx->priv;
     AVFrame *output_frame      = NULL;
     VASurfaceID input_surface, output_surface;

     VAProcPipelineParameterBuffer params;
     int err;

     av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
            av_get_pix_fmt_name(input_frame->format),
            input_frame->width, input_frame->height, input_frame->pts);

     if (vpp_ctx->va_context == VA_INVALID_ID){
         av_frame_free(&input_frame);
         return AVERROR(EINVAL);
     }

     err = tonemap_vaapi_save_metadata(avctx, input_frame);
     if (err < 0)
         goto fail;

     err = tonemap_vaapi_set_filter_params(avctx, input_frame);
     if (err < 0)
         goto fail;

     input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
     av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for tonemap vpp input.\n",
            input_surface);

     output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
                                        vpp_ctx->output_height);
     if (!output_frame) {
         err = AVERROR(ENOMEM);
         goto fail;
     }

     output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3];
     av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for tonemap vpp output.\n",
            output_surface);
     memset(&params, 0, sizeof(params));

     err = av_frame_copy_props(output_frame, input_frame);
     if (err < 0)
         goto fail;

     if (ctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
         output_frame->color_primaries = ctx->color_primaries;

     if (ctx->color_transfer != AVCOL_TRC_UNSPECIFIED)
         output_frame->color_trc = ctx->color_transfer;
     else
         output_frame->color_trc = AVCOL_TRC_BT709;

     if (ctx->color_matrix != AVCOL_SPC_UNSPECIFIED)
         output_frame->colorspace = ctx->color_matrix;

     err = ff_vaapi_vpp_init_params(avctx, &params,
                                    input_frame, output_frame);
     if (err < 0)
         goto fail;

     err = ff_vaapi_vpp_render_picture(avctx, &params, output_frame);
     if (err < 0)
         goto fail;

     av_frame_free(&input_frame);

     av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
            av_get_pix_fmt_name(output_frame->format),
            output_frame->width, output_frame->height, output_frame->pts);

     return ff_filter_frame(outlink, output_frame);

 fail:
     av_frame_free(&input_frame);
     av_frame_free(&output_frame);
     return err;
 }

 static av_cold int tonemap_vaapi_init(AVFilterContext *avctx)
 {
     VAAPIVPPContext *vpp_ctx = avctx->priv;
     HDRVAAPIContext *ctx     = avctx->priv;

     ff_vaapi_vpp_ctx_init(avctx);
     vpp_ctx->build_filter_params = tonemap_vaapi_build_filter_params;
     vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;

     if (ctx->output_format_string) {
         vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
         switch (vpp_ctx->output_format) {
         case AV_PIX_FMT_NV12:
         case AV_PIX_FMT_P010:
             break;
         default:
             av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
             return AVERROR(EINVAL);
         }
     } else {
         vpp_ctx->output_format = AV_PIX_FMT_NV12;
         av_log(avctx, AV_LOG_WARNING, "Output format not set, use default format NV12\n");
     }

 #define STRING_OPTION(var_name, func_name, default_value) do { \
         if (ctx->var_name ## _string) { \
             int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
             if (var < 0) { \
                 av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
                 return AVERROR(EINVAL); \
             } \
             ctx->var_name = var; \
         } else { \
             ctx->var_name = default_value; \
         } \
     } while (0)

     STRING_OPTION(color_primaries, color_primaries, AVCOL_PRI_UNSPECIFIED);
     STRING_OPTION(color_transfer,  color_transfer,  AVCOL_TRC_UNSPECIFIED);
     STRING_OPTION(color_matrix,    color_space,     AVCOL_SPC_UNSPECIFIED);

     return 0;
 }

 #define OFFSET(x) offsetof(HDRVAAPIContext, x)
 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
 static const AVOption tonemap_vaapi_options[] = {
     { "format", "Output pixel format set", OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS, "format" },
     { "matrix", "Output color matrix coefficient set",
       OFFSET(color_matrix_string), AV_OPT_TYPE_STRING,
       { .str = NULL }, .flags = FLAGS, "matrix" },
     { "m",      "Output color matrix coefficient set",
       OFFSET(color_matrix_string), AV_OPT_TYPE_STRING,
       { .str = NULL }, .flags = FLAGS, "matrix" },
     { "primaries", "Output color primaries set",
       OFFSET(color_primaries_string), AV_OPT_TYPE_STRING,
       { .str = NULL }, .flags = FLAGS, "primaries" },
     { "p",         "Output color primaries set",
       OFFSET(color_primaries_string), AV_OPT_TYPE_STRING,
       { .str = NULL }, .flags = FLAGS, "primaries" },
     { "transfer", "Output color transfer characteristics set",
       OFFSET(color_transfer_string),  AV_OPT_TYPE_STRING,
       { .str = NULL }, .flags = FLAGS, "transfer" },
     { "t",        "Output color transfer characteristics set",
       OFFSET(color_transfer_string),  AV_OPT_TYPE_STRING,
       { .str = NULL }, .flags = FLAGS, "transfer" },
     { NULL }
 };


 AVFILTER_DEFINE_CLASS(tonemap_vaapi);

 static const AVFilterPad tonemap_vaapi_inputs[] = {
     {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .filter_frame = &tonemap_vaapi_filter_frame,
         .config_props = &ff_vaapi_vpp_config_input,
     },
     { NULL }
 };

 static const AVFilterPad tonemap_vaapi_outputs[] = {
     {
         .name = "default",
         .type = AVMEDIA_TYPE_VIDEO,
         .config_props = &ff_vaapi_vpp_config_output,
     },
     { NULL }
 };

 AVFilter ff_vf_tonemap_vaapi = {
     .name           = "tonemap_vaapi",
     .description    = NULL_IF_CONFIG_SMALL("VAAPI VPP for tone-mapping"),
     .priv_size      = sizeof(HDRVAAPIContext),
     .init           = &tonemap_vaapi_init,
     .uninit         = &ff_vaapi_vpp_ctx_uninit,
     .query_formats  = &ff_vaapi_vpp_query_formats,
     .inputs         = tonemap_vaapi_inputs,
     .outputs        = tonemap_vaapi_outputs,
     .priv_class     = &tonemap_vaapi_class,
     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
 };
	/*
	* This file is part of FFmpeg.
	*
	* FFmpeg is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* FFmpeg is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with FFmpeg; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/
	#include <string.h>

	#include "libavutil/avassert.h"
	#include "libavutil/mem.h"
	#include "libavutil/opt.h"
	#include "libavutil/pixdesc.h"
	#include "libavutil/mastering_display_metadata.h"

	#include "avfilter.h"
	#include "formats.h"
	#include "internal.h"
	#include "vaapi_vpp.h"

	typedef struct HDRVAAPIContext {
	VAAPIVPPContext vpp_ctx; // must be the first field

	char *output_format_string;

	char *color_primaries_string;
	char *color_transfer_string;
	char *color_matrix_string;

	enum AVColorPrimaries color_primaries;
	enum AVColorTransferCharacteristic color_transfer;
	enum AVColorSpace color_matrix;

	VAHdrMetaDataHDR10 in_metadata;

	AVFrameSideData *src_display;
	AVFrameSideData *src_light;
	} HDRVAAPIContext;

	static int tonemap_vaapi_save_metadata(AVFilterContext avctx, AVFrame input_frame)
	{
	HDRVAAPIContext *ctx = avctx->priv;
	AVMasteringDisplayMetadata *hdr_meta;
	AVContentLightMetadata *light_meta;

	if (input_frame->color_trc != AVCOL_TRC_SMPTE2084) {
	av_log(avctx, AV_LOG_WARNING, "Only support HDR10 as input for vaapi tone-mapping\n");
	}

	ctx->src_display = av_frame_get_side_data(input_frame,
	AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
	if (ctx->src_display) {
	hdr_meta = (AVMasteringDisplayMetadata *)ctx->src_display->data;
	if (!hdr_meta) {
	av_log(avctx, AV_LOG_ERROR, "No mastering display data\n");
	return AVERROR(EINVAL);
	}

	if (hdr_meta->has_luminance) {
	const int luma_den = 10000;
	ctx->in_metadata.max_display_mastering_luminance =
	lrint(luma_den * av_q2d(hdr_meta->max_luminance));
	ctx->in_metadata.min_display_mastering_luminance =
	FFMIN(lrint(luma_den * av_q2d(hdr_meta->min_luminance)),
	ctx->in_metadata.max_display_mastering_luminance);

	av_log(avctx, AV_LOG_DEBUG,
	"Mastering Display Metadata(in luminance):\n");
	av_log(avctx, AV_LOG_DEBUG,
	"min_luminance=%u, max_luminance=%u\n",
	ctx->in_metadata.min_display_mastering_luminance,
	ctx->in_metadata.max_display_mastering_luminance);
	}

	if (hdr_meta->has_primaries) {
	int i;
	const int mapping[3] = {1, 2, 0}; //green, blue, red
	const int chroma_den = 50000;

	for (i = 0; i < 3; i++) {
	const int j = mapping[i];
	ctx->in_metadata.display_primaries_x[i] =
	FFMIN(lrint(chroma_den *
	av_q2d(hdr_meta->display_primaries[j][0])),
	chroma_den);
	ctx->in_metadata.display_primaries_y[i] =
	FFMIN(lrint(chroma_den *
	av_q2d(hdr_meta->display_primaries[j][1])),
	chroma_den);
	}

	ctx->in_metadata.white_point_x =
	FFMIN(lrint(chroma_den * av_q2d(hdr_meta->white_point[0])),
	chroma_den);
	ctx->in_metadata.white_point_y =
	FFMIN(lrint(chroma_den * av_q2d(hdr_meta->white_point[1])),
	chroma_den);

	av_log(avctx, AV_LOG_DEBUG,
	"Mastering Display Metadata(in primaries):\n");
	av_log(avctx, AV_LOG_DEBUG,
	"G(%u,%u) B(%u,%u) R(%u,%u) WP(%u,%u)\n",
	ctx->in_metadata.display_primaries_x[0],
	ctx->in_metadata.display_primaries_y[0],
	ctx->in_metadata.display_primaries_x[1],
	ctx->in_metadata.display_primaries_y[1],
	ctx->in_metadata.display_primaries_x[2],
	ctx->in_metadata.display_primaries_y[2],
	ctx->in_metadata.white_point_x,
	ctx->in_metadata.white_point_y);
	}
	} else {
	av_log(avctx, AV_LOG_ERROR, "No mastering display data from input\n");
	return AVERROR(EINVAL);
	}

	ctx->src_light = av_frame_get_side_data(input_frame,
	AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
	if (ctx->src_light) {
	light_meta = (AVContentLightMetadata *)ctx->src_light->data;
	if (!light_meta) {
	av_log(avctx, AV_LOG_ERROR, "No light metadata\n");
	return AVERROR(EINVAL);
	}

	ctx->in_metadata.max_content_light_level = light_meta->MaxCLL;
	ctx->in_metadata.max_pic_average_light_level = light_meta->MaxFALL;

	av_log(avctx, AV_LOG_DEBUG,
	"Mastering Content Light Level (in):\n");
	av_log(avctx, AV_LOG_DEBUG,
	"MaxCLL(%u) MaxFALL(%u)\n",
	ctx->in_metadata.max_content_light_level,
	ctx->in_metadata.max_pic_average_light_level);
	} else {
	av_log(avctx, AV_LOG_DEBUG, "No content light level from input\n");
	}
	return 0;
	}

	static int tonemap_vaapi_set_filter_params(AVFilterContext avctx, AVFrame input_frame)
	{
	VAAPIVPPContext *vpp_ctx = avctx->priv;
	HDRVAAPIContext *ctx = avctx->priv;
	VAStatus vas;
	VAProcFilterParameterBufferHDRToneMapping *hdrtm_param;

	vas = vaMapBuffer(vpp_ctx->hwctx->display, vpp_ctx->filter_buffers[0],
	(void**)&hdrtm_param);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to map "
	"buffer (%d): %d (%s).\n",
	vpp_ctx->filter_buffers[0], vas, vaErrorStr(vas));
	return AVERROR(EIO);
	}

	memcpy(hdrtm_param->data.metadata, &ctx->in_metadata, sizeof(VAHdrMetaDataHDR10));

	vas = vaUnmapBuffer(vpp_ctx->hwctx->display, vpp_ctx->filter_buffers[0]);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
	"%d (%s).\n", vas, vaErrorStr(vas));
	return AVERROR(EIO);
	}

	return 0;
	}

	static int tonemap_vaapi_build_filter_params(AVFilterContext *avctx)
	{
	VAAPIVPPContext *vpp_ctx = avctx->priv;
	HDRVAAPIContext *ctx = avctx->priv;
	VAStatus vas;
	VAProcFilterParameterBufferHDRToneMapping hdrtm_param;
	VAProcFilterCapHighDynamicRange hdr_cap[VAProcHighDynamicRangeMetadataTypeCount];
	int num_query_caps;
	int i;

	memset(&hdrtm_param, 0, sizeof(hdrtm_param));
	memset(&ctx->in_metadata, 0, sizeof(ctx->in_metadata));

	num_query_caps = VAProcHighDynamicRangeMetadataTypeCount;
	vas = vaQueryVideoProcFilterCaps(vpp_ctx->hwctx->display,
	vpp_ctx->va_context,
	VAProcFilterHighDynamicRangeToneMapping,
	&hdr_cap, &num_query_caps);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to query HDR caps "
	"context: %d (%s).\n", vas, vaErrorStr(vas));
	return AVERROR(EIO);
	}

	for (i = 0; i < num_query_caps; i++) {
	if (hdr_cap[i].metadata_type != VAProcHighDynamicRangeMetadataNone)
	break;
	}

	if (i >= num_query_caps) {
	av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support HDR\n");
	return AVERROR(EINVAL);
	}

	for (i = 0; i < num_query_caps; i++) {
	if (VA_TONE_MAPPING_HDR_TO_SDR & hdr_cap[i].caps_flag)
	break;
	}

	if (i >= num_query_caps) {
	av_log(avctx, AV_LOG_ERROR,
	"VAAPI driver doesn't support HDR to SDR\n");
	return AVERROR(EINVAL);
	}

	hdrtm_param.type = VAProcFilterHighDynamicRangeToneMapping;
	hdrtm_param.data.metadata_type = VAProcHighDynamicRangeMetadataHDR10;
	hdrtm_param.data.metadata = &ctx->in_metadata;
	hdrtm_param.data.metadata_size = sizeof(VAHdrMetaDataHDR10);

	return ff_vaapi_vpp_make_param_buffers(avctx,
	VAProcFilterParameterBufferType,
	&hdrtm_param, sizeof(hdrtm_param), 1);
	}

	static int tonemap_vaapi_filter_frame(AVFilterLink inlink, AVFrame input_frame)
	{
	AVFilterContext *avctx = inlink->dst;
	AVFilterLink *outlink = avctx->outputs[0];
	VAAPIVPPContext *vpp_ctx = avctx->priv;
	HDRVAAPIContext *ctx = avctx->priv;
	AVFrame *output_frame = NULL;
	VASurfaceID input_surface, output_surface;

	VAProcPipelineParameterBuffer params;
	int err;

	av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
	av_get_pix_fmt_name(input_frame->format),
	input_frame->width, input_frame->height, input_frame->pts);

	if (vpp_ctx->va_context == VA_INVALID_ID){
	av_frame_free(&input_frame);
	return AVERROR(EINVAL);
	}

	err = tonemap_vaapi_save_metadata(avctx, input_frame);
	if (err < 0)
	goto fail;

	err = tonemap_vaapi_set_filter_params(avctx, input_frame);
	if (err < 0)
	goto fail;

	input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
	av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for tonemap vpp input.\n",
	input_surface);

	output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
	vpp_ctx->output_height);
	if (!output_frame) {
	err = AVERROR(ENOMEM);
	goto fail;
	}

	output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3];
	av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for tonemap vpp output.\n",
	output_surface);
	memset(&params, 0, sizeof(params));

	err = av_frame_copy_props(output_frame, input_frame);
	if (err < 0)
	goto fail;

	if (ctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
	output_frame->color_primaries = ctx->color_primaries;

	if (ctx->color_transfer != AVCOL_TRC_UNSPECIFIED)
	output_frame->color_trc = ctx->color_transfer;
	else
	output_frame->color_trc = AVCOL_TRC_BT709;

	if (ctx->color_matrix != AVCOL_SPC_UNSPECIFIED)
	output_frame->colorspace = ctx->color_matrix;

	err = ff_vaapi_vpp_init_params(avctx, &params,
	input_frame, output_frame);
	if (err < 0)
	goto fail;

	err = ff_vaapi_vpp_render_picture(avctx, &params, output_frame);
	if (err < 0)
	goto fail;

	av_frame_free(&input_frame);

	av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
	av_get_pix_fmt_name(output_frame->format),
	output_frame->width, output_frame->height, output_frame->pts);

	return ff_filter_frame(outlink, output_frame);

	fail:
	av_frame_free(&input_frame);
	av_frame_free(&output_frame);
	return err;
	}

	static av_cold int tonemap_vaapi_init(AVFilterContext *avctx)
	{
	VAAPIVPPContext *vpp_ctx = avctx->priv;
	HDRVAAPIContext *ctx = avctx->priv;

	ff_vaapi_vpp_ctx_init(avctx);
	vpp_ctx->build_filter_params = tonemap_vaapi_build_filter_params;
	vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;

	if (ctx->output_format_string) {
	vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
	switch (vpp_ctx->output_format) {
	case AV_PIX_FMT_NV12:
	case AV_PIX_FMT_P010:
	break;
	default:
	av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
	return AVERROR(EINVAL);
	}
	} else {
	vpp_ctx->output_format = AV_PIX_FMT_NV12;
	av_log(avctx, AV_LOG_WARNING, "Output format not set, use default format NV12\n");
	}

	#define STRING_OPTION(var_name, func_name, default_value) do { \
	if (ctx->var_name ## _string) { \
	int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
	if (var < 0) { \
	av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
	return AVERROR(EINVAL); \
	} \
	ctx->var_name = var; \
	} else { \
	ctx->var_name = default_value; \
	} \
	} while (0)

	STRING_OPTION(color_primaries, color_primaries, AVCOL_PRI_UNSPECIFIED);
	STRING_OPTION(color_transfer, color_transfer, AVCOL_TRC_UNSPECIFIED);
	STRING_OPTION(color_matrix, color_space, AVCOL_SPC_UNSPECIFIED);

	return 0;
	}

	#define OFFSET(x) offsetof(HDRVAAPIContext, x)
	#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_FILTERING_PARAM)
	static const AVOption tonemap_vaapi_options[] = {
	{ "format", "Output pixel format set", OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS, "format" },
	{ "matrix", "Output color matrix coefficient set",
	OFFSET(color_matrix_string), AV_OPT_TYPE_STRING,
	{ .str = NULL }, .flags = FLAGS, "matrix" },
	{ "m", "Output color matrix coefficient set",
	OFFSET(color_matrix_string), AV_OPT_TYPE_STRING,
	{ .str = NULL }, .flags = FLAGS, "matrix" },
	{ "primaries", "Output color primaries set",
	OFFSET(color_primaries_string), AV_OPT_TYPE_STRING,
	{ .str = NULL }, .flags = FLAGS, "primaries" },
	{ "p", "Output color primaries set",
	OFFSET(color_primaries_string), AV_OPT_TYPE_STRING,
	{ .str = NULL }, .flags = FLAGS, "primaries" },
	{ "transfer", "Output color transfer characteristics set",
	OFFSET(color_transfer_string), AV_OPT_TYPE_STRING,
	{ .str = NULL }, .flags = FLAGS, "transfer" },
	{ "t", "Output color transfer characteristics set",
	OFFSET(color_transfer_string), AV_OPT_TYPE_STRING,
	{ .str = NULL }, .flags = FLAGS, "transfer" },
	{ NULL }
	};


	AVFILTER_DEFINE_CLASS(tonemap_vaapi);

	static const AVFilterPad tonemap_vaapi_inputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.filter_frame = &tonemap_vaapi_filter_frame,
	.config_props = &ff_vaapi_vpp_config_input,
	},
	{ NULL }
	};

	static const AVFilterPad tonemap_vaapi_outputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.config_props = &ff_vaapi_vpp_config_output,
	},
	{ NULL }
	};

	AVFilter ff_vf_tonemap_vaapi = {
	.name = "tonemap_vaapi",
	.description = NULL_IF_CONFIG_SMALL("VAAPI VPP for tone-mapping"),
	.priv_size = sizeof(HDRVAAPIContext),
	.init = &tonemap_vaapi_init,
	.uninit = &ff_vaapi_vpp_ctx_uninit,
	.query_formats = &ff_vaapi_vpp_query_formats,
	.inputs = tonemap_vaapi_inputs,
	.outputs = tonemap_vaapi_outputs,
	.priv_class = &tonemap_vaapi_class,
	.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
	};