libavfilter/vaapi_vpp.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/pixdesc.h"
 #include "formats.h"
 #include "internal.h"
 #include "vaapi_vpp.h"

 int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
 {
     enum AVPixelFormat pix_fmts[] = {
         AV_PIX_FMT_VAAPI, AV_PIX_FMT_NONE,
     };
     int err;

     if ((err = ff_formats_ref(ff_make_format_list(pix_fmts),
                               &avctx->inputs[0]->out_formats)) < 0)
         return err;
     if ((err = ff_formats_ref(ff_make_format_list(pix_fmts),
                               &avctx->outputs[0]->in_formats)) < 0)
         return err;

     return 0;
 }

 void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx)
 {
     VAAPIVPPContext *ctx   = avctx->priv;
     int i;
     for (i = 0; i < ctx->nb_filter_buffers; i++) {
         if (ctx->filter_buffers[i] != VA_INVALID_ID) {
             vaDestroyBuffer(ctx->hwctx->display, ctx->filter_buffers[i]);
             ctx->filter_buffers[i] = VA_INVALID_ID;
         }
     }
     ctx->nb_filter_buffers = 0;

     if (ctx->va_context != VA_INVALID_ID) {
         vaDestroyContext(ctx->hwctx->display, ctx->va_context);
         ctx->va_context = VA_INVALID_ID;
     }

     if (ctx->va_config != VA_INVALID_ID) {
         vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
         ctx->va_config = VA_INVALID_ID;
     }

     av_buffer_unref(&ctx->device_ref);
     ctx->hwctx = NULL;
 }

 int ff_vaapi_vpp_config_input(AVFilterLink *inlink)
 {
     AVFilterContext *avctx = inlink->dst;
     VAAPIVPPContext *ctx   = avctx->priv;

     if (ctx->pipeline_uninit)
         ctx->pipeline_uninit(avctx);

     if (!inlink->hw_frames_ctx) {
         av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
                "required to associate the processing device.\n");
         return AVERROR(EINVAL);
     }

     ctx->input_frames_ref = av_buffer_ref(inlink->hw_frames_ctx);
     if (!ctx->input_frames_ref) {
         av_log(avctx, AV_LOG_ERROR, "A input frames reference create "
                "failed.\n");
         return AVERROR(ENOMEM);
     }
     ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;

     return 0;
 }

 int ff_vaapi_vpp_config_output(AVFilterLink *outlink)
 {
     AVFilterContext *avctx = outlink->src;
     VAAPIVPPContext *ctx   = avctx->priv;
     AVVAAPIHWConfig *hwconfig = NULL;
     AVHWFramesConstraints *constraints = NULL;
     AVHWFramesContext *output_frames;
     AVVAAPIFramesContext *va_frames;
     VAStatus vas;
     int err, i;

     if (ctx->pipeline_uninit)
         ctx->pipeline_uninit(avctx);

     if (!ctx->output_width)
         ctx->output_width  = avctx->inputs[0]->w;
     if (!ctx->output_height)
         ctx->output_height = avctx->inputs[0]->h;

     av_assert0(ctx->input_frames);
     ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
     if (!ctx->device_ref) {
         av_log(avctx, AV_LOG_ERROR, "A device reference create "
                "failed.\n");
         return AVERROR(ENOMEM);
     }
     ctx->hwctx = ((AVHWDeviceContext*)ctx->device_ref->data)->hwctx;

     av_assert0(ctx->va_config == VA_INVALID_ID);
     vas = vaCreateConfig(ctx->hwctx->display, VAProfileNone,
                          VAEntrypointVideoProc, NULL, 0, &ctx->va_config);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to create processing pipeline "
                "config: %d (%s).\n", vas, vaErrorStr(vas));
         err = AVERROR(EIO);
         goto fail;
     }

     hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
     if (!hwconfig) {
         err = AVERROR(ENOMEM);
         goto fail;
     }
     hwconfig->config_id = ctx->va_config;

     constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
                                                       hwconfig);
     if (!constraints) {
         err = AVERROR(ENOMEM);
         goto fail;
     }

     if (ctx->output_format == AV_PIX_FMT_NONE)
         ctx->output_format = ctx->input_frames->sw_format;
     if (constraints->valid_sw_formats) {
         for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
             if (ctx->output_format == constraints->valid_sw_formats[i])
                 break;
         }
         if (constraints->valid_sw_formats[i] == AV_PIX_FMT_NONE) {
             av_log(avctx, AV_LOG_ERROR, "Hardware does not support output "
                    "format %s.\n", av_get_pix_fmt_name(ctx->output_format));
             err = AVERROR(EINVAL);
             goto fail;
         }
     }

     if (ctx->output_width  < constraints->min_width  ||
         ctx->output_height < constraints->min_height ||
         ctx->output_width  > constraints->max_width  ||
         ctx->output_height > constraints->max_height) {
         av_log(avctx, AV_LOG_ERROR, "Hardware does not support scaling to "
                "size %dx%d (constraints: width %d-%d height %d-%d).\n",
                ctx->output_width, ctx->output_height,
                constraints->min_width,  constraints->max_width,
                constraints->min_height, constraints->max_height);
         err = AVERROR(EINVAL);
         goto fail;
     }

     outlink->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->device_ref);
     if (!outlink->hw_frames_ctx) {
         av_log(avctx, AV_LOG_ERROR, "Failed to create HW frame context "
                "for output.\n");
         err = AVERROR(ENOMEM);
         goto fail;
     }

     output_frames = (AVHWFramesContext*)outlink->hw_frames_ctx->data;

     output_frames->format    = AV_PIX_FMT_VAAPI;
     output_frames->sw_format = ctx->output_format;
     output_frames->width     = ctx->output_width;
     output_frames->height    = ctx->output_height;

     output_frames->initial_pool_size = 4;

     err = ff_filter_init_hw_frames(avctx, outlink, 10);
     if (err < 0)
         goto fail;

     err = av_hwframe_ctx_init(outlink->hw_frames_ctx);
     if (err < 0) {
         av_log(avctx, AV_LOG_ERROR, "Failed to initialise VAAPI frame "
                "context for output: %d\n", err);
         goto fail;
     }

     va_frames = output_frames->hwctx;

     av_assert0(ctx->va_context == VA_INVALID_ID);
     vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
                           ctx->output_width, ctx->output_height,
                           VA_PROGRESSIVE,
                           va_frames->surface_ids, va_frames->nb_surfaces,
                           &ctx->va_context);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to create processing pipeline "
                "context: %d (%s).\n", vas, vaErrorStr(vas));
         return AVERROR(EIO);
     }

     outlink->w = ctx->output_width;
     outlink->h = ctx->output_height;

     if (ctx->build_filter_params) {
         err = ctx->build_filter_params(avctx);
         if (err < 0)
             goto fail;
     }

     av_freep(&hwconfig);
     av_hwframe_constraints_free(&constraints);
     return 0;

 fail:
     av_buffer_unref(&outlink->hw_frames_ctx);
     av_freep(&hwconfig);
     av_hwframe_constraints_free(&constraints);
     return err;
 }

 int ff_vaapi_vpp_colour_standard(enum AVColorSpace av_cs)
 {
     switch(av_cs) {
 #define CS(av, va) case AVCOL_SPC_ ## av: return VAProcColorStandard ## va;
         CS(BT709,     BT709);
         CS(BT470BG,   BT601);
         CS(SMPTE170M, SMPTE170M);
         CS(SMPTE240M, SMPTE240M);
 #undef CS
     default:
         return VAProcColorStandardNone;
     }
 }

 int ff_vaapi_vpp_make_param_buffers(AVFilterContext *avctx,
                                     int type,
                                     const void *data,
                                     size_t size,
                                     int count)
 {
     VAStatus vas;
     VABufferID buffer;
     VAAPIVPPContext *ctx   = avctx->priv;

     av_assert0(ctx->nb_filter_buffers + 1 <= VAProcFilterCount);

     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
                          type, size, count, (void*)data, &buffer);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to create parameter "
                "buffer (type %d): %d (%s).\n",
                type, vas, vaErrorStr(vas));
         return AVERROR(EIO);
     }

     ctx->filter_buffers[ctx->nb_filter_buffers++] = buffer;

     av_log(avctx, AV_LOG_DEBUG, "Param buffer (type %d, %zu bytes, count %d) "
            "is %#x.\n", type, size, count, buffer);
     return 0;
 }


 int ff_vaapi_vpp_render_picture(AVFilterContext *avctx,
                                 VAProcPipelineParameterBuffer *params,
                                 VASurfaceID output_surface)
 {
     VABufferID params_id;
     VAStatus vas;
     int err = 0;
     VAAPIVPPContext *ctx   = avctx->priv;

     vas = vaBeginPicture(ctx->hwctx->display,
                          ctx->va_context, output_surface);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to attach new picture: "
                "%d (%s).\n", vas, vaErrorStr(vas));
         err = AVERROR(EIO);
         goto fail;
     }

     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
                          VAProcPipelineParameterBufferType,
                          sizeof(*params), 1, params, &params_id);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer: "
                "%d (%s).\n", vas, vaErrorStr(vas));
         err = AVERROR(EIO);
         goto fail_after_begin;
     }
     av_log(avctx, AV_LOG_DEBUG, "Pipeline parameter buffer is %#x.\n",
            params_id);

     vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
                           &params_id, 1);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to render parameter buffer: "
                "%d (%s).\n", vas, vaErrorStr(vas));
         err = AVERROR(EIO);
         goto fail_after_begin;
     }

     vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
     if (vas != VA_STATUS_SUCCESS) {
         av_log(avctx, AV_LOG_ERROR, "Failed to start picture processing: "
                "%d (%s).\n", vas, vaErrorStr(vas));
         err = AVERROR(EIO);
         goto fail_after_render;
     }

     if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
         AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) {
         vas = vaDestroyBuffer(ctx->hwctx->display, params_id);
         if (vas != VA_STATUS_SUCCESS) {
             av_log(avctx, AV_LOG_ERROR, "Failed to free parameter buffer: "
                    "%d (%s).\n", vas, vaErrorStr(vas));
             // And ignore.
         }
     }

     return 0;

     // We want to make sure that if vaBeginPicture has been called, we also
     // call vaRenderPicture and vaEndPicture.  These calls may well fail or
     // do something else nasty, but once we're in this failure case there
     // isn't much else we can do.
 fail_after_begin:
     vaRenderPicture(ctx->hwctx->display, ctx->va_context, &params_id, 1);
 fail_after_render:
     vaEndPicture(ctx->hwctx->display, ctx->va_context);
 fail:
     return err;
 }

 void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx)
 {
     int i;
     VAAPIVPPContext *ctx   = avctx->priv;

     ctx->va_config  = VA_INVALID_ID;
     ctx->va_context = VA_INVALID_ID;
     ctx->valid_ids  = 1;

     for (i = 0; i < VAProcFilterCount; i++)
         ctx->filter_buffers[i] = VA_INVALID_ID;
     ctx->nb_filter_buffers = 0;
 }

 void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx)
 {
     VAAPIVPPContext *ctx   = avctx->priv;
     if (ctx->valid_ids && ctx->pipeline_uninit)
         ctx->pipeline_uninit(avctx);

     av_buffer_unref(&ctx->input_frames_ref);
     av_buffer_unref(&ctx->device_ref);
 }
	/*
	* 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/pixdesc.h"
	#include "formats.h"
	#include "internal.h"
	#include "vaapi_vpp.h"

	int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
	{
	enum AVPixelFormat pix_fmts[] = {
	AV_PIX_FMT_VAAPI, AV_PIX_FMT_NONE,
	};
	int err;

	if ((err = ff_formats_ref(ff_make_format_list(pix_fmts),
	&avctx->inputs[0]->out_formats)) < 0)
	return err;
	if ((err = ff_formats_ref(ff_make_format_list(pix_fmts),
	&avctx->outputs[0]->in_formats)) < 0)
	return err;

	return 0;
	}

	void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx)
	{
	VAAPIVPPContext *ctx = avctx->priv;
	int i;
	for (i = 0; i < ctx->nb_filter_buffers; i++) {
	if (ctx->filter_buffers[i] != VA_INVALID_ID) {
	vaDestroyBuffer(ctx->hwctx->display, ctx->filter_buffers[i]);
	ctx->filter_buffers[i] = VA_INVALID_ID;
	}
	}
	ctx->nb_filter_buffers = 0;

	if (ctx->va_context != VA_INVALID_ID) {
	vaDestroyContext(ctx->hwctx->display, ctx->va_context);
	ctx->va_context = VA_INVALID_ID;
	}

	if (ctx->va_config != VA_INVALID_ID) {
	vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
	ctx->va_config = VA_INVALID_ID;
	}

	av_buffer_unref(&ctx->device_ref);
	ctx->hwctx = NULL;
	}

	int ff_vaapi_vpp_config_input(AVFilterLink *inlink)
	{
	AVFilterContext *avctx = inlink->dst;
	VAAPIVPPContext *ctx = avctx->priv;

	if (ctx->pipeline_uninit)
	ctx->pipeline_uninit(avctx);

	if (!inlink->hw_frames_ctx) {
	av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
	"required to associate the processing device.\n");
	return AVERROR(EINVAL);
	}

	ctx->input_frames_ref = av_buffer_ref(inlink->hw_frames_ctx);
	if (!ctx->input_frames_ref) {
	av_log(avctx, AV_LOG_ERROR, "A input frames reference create "
	"failed.\n");
	return AVERROR(ENOMEM);
	}
	ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;

	return 0;
	}

	int ff_vaapi_vpp_config_output(AVFilterLink *outlink)
	{
	AVFilterContext *avctx = outlink->src;
	VAAPIVPPContext *ctx = avctx->priv;
	AVVAAPIHWConfig *hwconfig = NULL;
	AVHWFramesConstraints *constraints = NULL;
	AVHWFramesContext *output_frames;
	AVVAAPIFramesContext *va_frames;
	VAStatus vas;
	int err, i;

	if (ctx->pipeline_uninit)
	ctx->pipeline_uninit(avctx);

	if (!ctx->output_width)
	ctx->output_width = avctx->inputs[0]->w;
	if (!ctx->output_height)
	ctx->output_height = avctx->inputs[0]->h;

	av_assert0(ctx->input_frames);
	ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
	if (!ctx->device_ref) {
	av_log(avctx, AV_LOG_ERROR, "A device reference create "
	"failed.\n");
	return AVERROR(ENOMEM);
	}
	ctx->hwctx = ((AVHWDeviceContext*)ctx->device_ref->data)->hwctx;

	av_assert0(ctx->va_config == VA_INVALID_ID);
	vas = vaCreateConfig(ctx->hwctx->display, VAProfileNone,
	VAEntrypointVideoProc, NULL, 0, &ctx->va_config);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to create processing pipeline "
	"config: %d (%s).\n", vas, vaErrorStr(vas));
	err = AVERROR(EIO);
	goto fail;
	}

	hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
	if (!hwconfig) {
	err = AVERROR(ENOMEM);
	goto fail;
	}
	hwconfig->config_id = ctx->va_config;

	constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
	hwconfig);
	if (!constraints) {
	err = AVERROR(ENOMEM);
	goto fail;
	}

	if (ctx->output_format == AV_PIX_FMT_NONE)
	ctx->output_format = ctx->input_frames->sw_format;
	if (constraints->valid_sw_formats) {
	for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
	if (ctx->output_format == constraints->valid_sw_formats[i])
	break;
	}
	if (constraints->valid_sw_formats[i] == AV_PIX_FMT_NONE) {
	av_log(avctx, AV_LOG_ERROR, "Hardware does not support output "
	"format %s.\n", av_get_pix_fmt_name(ctx->output_format));
	err = AVERROR(EINVAL);
	goto fail;
	}
	}

	if (ctx->output_width < constraints->min_width \|\|
	ctx->output_height < constraints->min_height \|\|
	ctx->output_width > constraints->max_width \|\|
	ctx->output_height > constraints->max_height) {
	av_log(avctx, AV_LOG_ERROR, "Hardware does not support scaling to "
	"size %dx%d (constraints: width %d-%d height %d-%d).\n",
	ctx->output_width, ctx->output_height,
	constraints->min_width, constraints->max_width,
	constraints->min_height, constraints->max_height);
	err = AVERROR(EINVAL);
	goto fail;
	}

	outlink->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->device_ref);
	if (!outlink->hw_frames_ctx) {
	av_log(avctx, AV_LOG_ERROR, "Failed to create HW frame context "
	"for output.\n");
	err = AVERROR(ENOMEM);
	goto fail;
	}

	output_frames = (AVHWFramesContext*)outlink->hw_frames_ctx->data;

	output_frames->format = AV_PIX_FMT_VAAPI;
	output_frames->sw_format = ctx->output_format;
	output_frames->width = ctx->output_width;
	output_frames->height = ctx->output_height;

	output_frames->initial_pool_size = 4;

	err = ff_filter_init_hw_frames(avctx, outlink, 10);
	if (err < 0)
	goto fail;

	err = av_hwframe_ctx_init(outlink->hw_frames_ctx);
	if (err < 0) {
	av_log(avctx, AV_LOG_ERROR, "Failed to initialise VAAPI frame "
	"context for output: %d\n", err);
	goto fail;
	}

	va_frames = output_frames->hwctx;

	av_assert0(ctx->va_context == VA_INVALID_ID);
	vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
	ctx->output_width, ctx->output_height,
	VA_PROGRESSIVE,
	va_frames->surface_ids, va_frames->nb_surfaces,
	&ctx->va_context);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to create processing pipeline "
	"context: %d (%s).\n", vas, vaErrorStr(vas));
	return AVERROR(EIO);
	}

	outlink->w = ctx->output_width;
	outlink->h = ctx->output_height;

	if (ctx->build_filter_params) {
	err = ctx->build_filter_params(avctx);
	if (err < 0)
	goto fail;
	}

	av_freep(&hwconfig);
	av_hwframe_constraints_free(&constraints);
	return 0;

	fail:
	av_buffer_unref(&outlink->hw_frames_ctx);
	av_freep(&hwconfig);
	av_hwframe_constraints_free(&constraints);
	return err;
	}

	int ff_vaapi_vpp_colour_standard(enum AVColorSpace av_cs)
	{
	switch(av_cs) {
	#define CS(av, va) case AVCOL_SPC_ ## av: return VAProcColorStandard ## va;
	CS(BT709, BT709);
	CS(BT470BG, BT601);
	CS(SMPTE170M, SMPTE170M);
	CS(SMPTE240M, SMPTE240M);
	#undef CS
	default:
	return VAProcColorStandardNone;
	}
	}

	int ff_vaapi_vpp_make_param_buffers(AVFilterContext *avctx,
	int type,
	const void *data,
	size_t size,
	int count)
	{
	VAStatus vas;
	VABufferID buffer;
	VAAPIVPPContext *ctx = avctx->priv;

	av_assert0(ctx->nb_filter_buffers + 1 <= VAProcFilterCount);

	vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
	type, size, count, (void*)data, &buffer);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to create parameter "
	"buffer (type %d): %d (%s).\n",
	type, vas, vaErrorStr(vas));
	return AVERROR(EIO);
	}

	ctx->filter_buffers[ctx->nb_filter_buffers++] = buffer;

	av_log(avctx, AV_LOG_DEBUG, "Param buffer (type %d, %zu bytes, count %d) "
	"is %#x.\n", type, size, count, buffer);
	return 0;
	}


	int ff_vaapi_vpp_render_picture(AVFilterContext *avctx,
	VAProcPipelineParameterBuffer *params,
	VASurfaceID output_surface)
	{
	VABufferID params_id;
	VAStatus vas;
	int err = 0;
	VAAPIVPPContext *ctx = avctx->priv;

	vas = vaBeginPicture(ctx->hwctx->display,
	ctx->va_context, output_surface);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to attach new picture: "
	"%d (%s).\n", vas, vaErrorStr(vas));
	err = AVERROR(EIO);
	goto fail;
	}

	vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
	VAProcPipelineParameterBufferType,
	sizeof(*params), 1, params, &params_id);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer: "
	"%d (%s).\n", vas, vaErrorStr(vas));
	err = AVERROR(EIO);
	goto fail_after_begin;
	}
	av_log(avctx, AV_LOG_DEBUG, "Pipeline parameter buffer is %#x.\n",
	params_id);

	vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
	&params_id, 1);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to render parameter buffer: "
	"%d (%s).\n", vas, vaErrorStr(vas));
	err = AVERROR(EIO);
	goto fail_after_begin;
	}

	vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to start picture processing: "
	"%d (%s).\n", vas, vaErrorStr(vas));
	err = AVERROR(EIO);
	goto fail_after_render;
	}

	if (CONFIG_VAAPI_1 \|\| ctx->hwctx->driver_quirks &
	AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) {
	vas = vaDestroyBuffer(ctx->hwctx->display, params_id);
	if (vas != VA_STATUS_SUCCESS) {
	av_log(avctx, AV_LOG_ERROR, "Failed to free parameter buffer: "
	"%d (%s).\n", vas, vaErrorStr(vas));
	// And ignore.
	}
	}

	return 0;

	// We want to make sure that if vaBeginPicture has been called, we also
	// call vaRenderPicture and vaEndPicture. These calls may well fail or
	// do something else nasty, but once we're in this failure case there
	// isn't much else we can do.
	fail_after_begin:
	vaRenderPicture(ctx->hwctx->display, ctx->va_context, &params_id, 1);
	fail_after_render:
	vaEndPicture(ctx->hwctx->display, ctx->va_context);
	fail:
	return err;
	}

	void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx)
	{
	int i;
	VAAPIVPPContext *ctx = avctx->priv;

	ctx->va_config = VA_INVALID_ID;
	ctx->va_context = VA_INVALID_ID;
	ctx->valid_ids = 1;

	for (i = 0; i < VAProcFilterCount; i++)
	ctx->filter_buffers[i] = VA_INVALID_ID;
	ctx->nb_filter_buffers = 0;
	}

	void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx)
	{
	VAAPIVPPContext *ctx = avctx->priv;
	if (ctx->valid_ids && ctx->pipeline_uninit)
	ctx->pipeline_uninit(avctx);

	av_buffer_unref(&ctx->input_frames_ref);
	av_buffer_unref(&ctx->device_ref);
	}