[FFmpeg-devel] [PATCH v2] avfilter/vaapi: add overlay_vaapi filter
Zhou, Zachary
zachary.zhou at intel.com
Thu Jun 20 10:10:19 EEST 2019
> -----Original Message-----
> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of
> mypopy at gmail.com
> Sent: Wednesday, June 19, 2019 9:21 PM
> To: FFmpeg development discussions and patches <ffmpeg-devel at ffmpeg.org>
> Subject: Re: [FFmpeg-devel] [PATCH v2] avfilter/vaapi: add overlay_vaapi filter
>
> On Wed, Jun 19, 2019 at 5:26 PM Zhou, Zachary <zachary.zhou at intel.com>
> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On
> > > Behalf Of mypopy at gmail.com
> > > Sent: Wednesday, June 19, 2019 10:13 AM
> > > To: FFmpeg development discussions and patches
> > > <ffmpeg-devel at ffmpeg.org>
> > > Subject: Re: [FFmpeg-devel] [PATCH v2] avfilter/vaapi: add
> > > overlay_vaapi filter
> > >
> > > ?
> > > On Tue, Jun 11, 2019 at 10:52 AM Zachary Zhou
> > > <zachary.zhou at intel.com>
> > > wrote:
> > > >
> > > > ---
> > > > configure | 1 +
> > > > libavfilter/Makefile | 1 +
> > > > libavfilter/allfilters.c | 1 +
> > > > libavfilter/vaapi_vpp.c | 95 +++++++++
> > > > libavfilter/vaapi_vpp.h | 5 +
> > > > libavfilter/vf_overlay_vaapi.c | 357
> > > > +++++++++++++++++++++++++++++++++
> > > > 6 files changed, 460 insertions(+) create mode 100644
> > > > libavfilter/vf_overlay_vaapi.c
> > > >
> > > > diff --git a/configure b/configure index 32fc26356c..f469e6a3b1
> > > > 100755
> > > > --- a/configure
> > > > +++ b/configure
> > > > @@ -3478,6 +3478,7 @@ openclsrc_filter_deps="opencl"
> > > > overlay_opencl_filter_deps="opencl"
> > > > overlay_qsv_filter_deps="libmfx"
> > > > overlay_qsv_filter_select="qsvvpp"
> > > > +overlay_vaapi_filter_deps="vaapi"
> > > > owdenoise_filter_deps="gpl"
> > > > pan_filter_deps="swresample"
> > > > perspective_filter_deps="gpl"
> > > > diff --git a/libavfilter/Makefile b/libavfilter/Makefile index
> > > > 07ea8d7edc..5cbf1a7e41 100644
> > > > --- a/libavfilter/Makefile
> > > > +++ b/libavfilter/Makefile
> > > > @@ -311,6 +311,7 @@ OBJS-$(CONFIG_OVERLAY_FILTER) +=
> > > vf_overlay.o framesync.o
> > > > OBJS-$(CONFIG_OVERLAY_OPENCL_FILTER) += vf_overlay_opencl.o
> > > opencl.o \
> > > > opencl/overlay.o framesync.o
> > > > OBJS-$(CONFIG_OVERLAY_QSV_FILTER) += vf_overlay_qsv.o
> > > framesync.o
> > > > +OBJS-$(CONFIG_OVERLAY_VAAPI_FILTER) += vf_overlay_vaapi.o
> > > framesync.o
> > > > OBJS-$(CONFIG_OWDENOISE_FILTER) += vf_owdenoise.o
> > > > OBJS-$(CONFIG_PAD_FILTER) += vf_pad.o
> > > > OBJS-$(CONFIG_PALETTEGEN_FILTER) += vf_palettegen.o
> > > > diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
> > > > index 9c846b1ddd..27ee1df78b 100644
> > > > --- a/libavfilter/allfilters.c
> > > > +++ b/libavfilter/allfilters.c
> > > > @@ -295,6 +295,7 @@ extern AVFilter ff_vf_oscilloscope; extern
> > > > AVFilter ff_vf_overlay; extern AVFilter ff_vf_overlay_opencl;
> > > > extern AVFilter ff_vf_overlay_qsv;
> > > > +extern AVFilter ff_vf_overlay_vaapi;
> > > > extern AVFilter ff_vf_owdenoise;
> > > > extern AVFilter ff_vf_pad;
> > > > extern AVFilter ff_vf_palettegen; diff --git
> > > > a/libavfilter/vaapi_vpp.c b/libavfilter/vaapi_vpp.c index
> > > > b5b245c8af..a8caa5b532 100644
> > > > --- a/libavfilter/vaapi_vpp.c
> > > > +++ b/libavfilter/vaapi_vpp.c
> > > > @@ -663,6 +663,101 @@ fail:
> > > > return err;
> > > > }
> > > >
> > > > +int ff_vaapi_vpp_render_overlay(AVFilterContext *avctx,
> > > > + VAProcPipelineParameterBuffer *params,
> > > > + VAProcPipelineParameterBuffer *subpic_params,
> > > > + VASurfaceID output_surface) {
> > > > + VABufferID params_id;
> > > > + VABufferID subpic_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, ¶ms_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 = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
> > > > + VAProcPipelineParameterBufferType,
> > > > + sizeof(*subpic_params), 1,
> > > > + subpic_params,
> > > &subpic_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 subpic parameter buffer
> > > is %#x.\n",
> > > > + subpic_params_id);
> > > > +
> > > > + vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
> > > > + ¶ms_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 = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
> > > > + &subpic_params_id, 1);
> > > > + if (vas != VA_STATUS_SUCCESS) {
> > > > + av_log(avctx, AV_LOG_ERROR, "Failed to render subpic
> > > > + 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,
> > > > +¶ms_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;
> > > > diff --git a/libavfilter/vaapi_vpp.h b/libavfilter/vaapi_vpp.h
> > > > index
> > > > c3da91717c..8d53acdec9 100644
> > > > --- a/libavfilter/vaapi_vpp.h
> > > > +++ b/libavfilter/vaapi_vpp.h
> > > > @@ -83,4 +83,9 @@ int ff_vaapi_vpp_render_picture(AVFilterContext
> > > *avctx,
> > > > VAProcPipelineParameterBuffer *params,
> > > > AVFrame *output_frame);
> > > >
> > > > +int ff_vaapi_vpp_render_overlay(AVFilterContext *avctx,
> > > > + VAProcPipelineParameterBuffer *primary_params,
> > > > + VAProcPipelineParameterBuffer *subpic_params,
> > > > + VASurfaceID output_surface);
> > > > +
> > > > #endif /* AVFILTER_VAAPI_VPP_H */ diff --git
> > > > a/libavfilter/vf_overlay_vaapi.c b/libavfilter/vf_overlay_vaapi.c
> > > > new file mode 100644 index
> > > > 0000000000..0f72b23611
> > > > --- /dev/null
> > > > +++ b/libavfilter/vf_overlay_vaapi.c
> > > > @@ -0,0 +1,357 @@
> > > > +/*
> > > > + * 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 "avfilter.h"
> > > > +#include "framesync.h"
> > > > +#include "formats.h"
> > > > +#include "internal.h"
> > > > +#include "vaapi_vpp.h"
> > > > +
> > > > +#if VA_CHECK_VERSION(2, 1, 0)
> > > > +// Blend State
> > > > +static VABlendState blend_state = { /** \brief Video blending flags. */
> > > > + .flags = VA_BLEND_PREMULTIPLIED_ALPHA,
> > > //VA_BLEND_GLOBAL_ALPHA,
> > > > + .global_alpha = 1,
> > > > + .min_luma = 0,
> > > > + .max_luma = 1
> > > > +};
> > > > +#endif
> > > > +
> > > > +typedef struct OverlayVAAPIContext {
> > > > + VAAPIVPPContext vpp_ctx; // must be the first field
> > > > +
> > > > + FFFrameSync fs;
> > > > +
> > > > + int overlay_x;
> > > > + int overlay_y;
> > > > + int overlay_w;
> > > > + int overlay_h;
> > > > + float overlay_alpha;
> > > > +} OverlayVAAPIContext;
> > > > +
> > > > +static int overlay_vaapi_query_formats(AVFilterContext *ctx) {
> > > > + int i;
> > > > + int ret;
> > > > +
> > > > + static const enum AVPixelFormat main_in_fmts[] = {
> > > > + AV_PIX_FMT_NV12,
> > > > + AV_PIX_FMT_RGB32,
> > > > + AV_PIX_FMT_VAAPI,
> > > > + AV_PIX_FMT_NONE
> > > > + };
> > > > + static const enum AVPixelFormat out_pix_fmts[] = {
> > > > + AV_PIX_FMT_NV12,
> > > > + AV_PIX_FMT_RGB32,
> > > > + AV_PIX_FMT_VAAPI,
> > > > + AV_PIX_FMT_NONE
> > > > + };
> > > > +
> > > > + for (i = 0; i < ctx->nb_inputs; i++) {
> > > > + ret = ff_formats_ref(ff_make_format_list(main_in_fmts),
> > > > + &ctx-
> > > >inputs[i]->out_formats);
> > > > + if (ret < 0)
> > > > + return ret;
> > > > + }
> > > > +
> > > > + ret = ff_formats_ref(ff_make_format_list(out_pix_fmts), &ctx-
> > > >outputs[0]->in_formats);
> > > > + if (ret < 0)
> > > > + return ret;
> > > > +
> > > > + return 0;
> > > > +}
> > > > +
> > > > +static int overlay_vaapi_blend(FFFrameSync *fs) {
> > > > + AVFilterContext *avctx = fs->parent;
> > > > + AVFilterLink *outlink = avctx->outputs[0];
> > > > + OverlayVAAPIContext *ctx = avctx->priv;
> > > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > > + AVFrame *input_main, *input_overlay;
> > > > + AVFrame *output;
> > > > + int err;
> > > > + VASurfaceID main_surface, overlay_surface, output_surface;
> > > > + VARectangle main_region, overlay_region, output_region;
> > > > + VAProcPipelineParameterBuffer params, subpic_params;
> > > > +
> > > > + err = ff_framesync_get_frame(fs, 0, &input_main, 0);
> > > > + if (err < 0)
> > > > + return err;
> > > > + err = ff_framesync_get_frame(fs, 1, &input_overlay, 0);
> > > > + if (err < 0)
> > > > + return err;
> > > > +
> > > > + av_log(avctx, AV_LOG_DEBUG, "Filter main: %s, %ux%u
> (%"PRId64").\n",
> > > > + av_get_pix_fmt_name(input_main->format),
> > > > + input_main->width, input_main->height,
> > > > + input_main->pts);
> > > > +
> > > > + av_log(avctx, AV_LOG_DEBUG, "Filter overlay: %s, %ux%u
> > > (%"PRId64").\n",
> > > > + av_get_pix_fmt_name(input_overlay->format),
> > > > + input_overlay->width, input_overlay->height,
> > > > + input_overlay->pts);
> > > > +
> > > > + if (vpp_ctx->va_context == VA_INVALID_ID)
> > > > + return AVERROR(EINVAL);
> > > > +
> > > > + main_surface = (VASurfaceID)(uintptr_t)input_main->data[3];
> > > > + av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for overlay
> > > > + vpp
> > > main.\n",
> > > > + main_surface);
> > > > +
> > > > + overlay_surface = (VASurfaceID)(uintptr_t)input_overlay->data[3];
> > > > + av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for overlay
> > > > + vpp
> > > overlay.\n",
> > > > + overlay_surface);
> > > > +
> > > > + output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
> > > > + if (!output) {
> > > > + err = AVERROR(ENOMEM);
> > > > + goto fail;
> > > > + }
> > > > +
> > > > + output_surface = (VASurfaceID)(uintptr_t)output->data[3];
> > > > + av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for overlay
> > > > + vpp
> > > output.\n",
> > > > + output_surface);
> > > > +
> > > > + memset(¶ms, 0, sizeof(params));
> > > > + memset(&subpic_params, 0, sizeof(subpic_params));
> > > > +
> > > > + main_region = (VARectangle) {
> > > > + .x = 0,
> > > > + .y = 0,
> > > > + .width = input_main->width,
> > > > + .height = input_main->height,
> > > > + };
> > > > +
> > > > + overlay_region = (VARectangle) {
> > > > + .x = ctx->overlay_x,
> > > > + .y = ctx->overlay_y,
> > > > + .width = input_overlay->width,
> > > > + .height = input_overlay->height,
> > > > + };
> > > > +
> > > > + output_region = (VARectangle) {
> > > > + .x = 0,
> > > > + .y = 0,
> > > > + .width = output->width,
> > > > + .height = output->height,
> > > > + };
> > > > +
> > > Some question, if overlay_width > main_width && overlay_height >
> > > main_height, what's the output in this filter?
> >
> > Thank you for the comments.
> > in this case, if don't reset overlay_width and overlay_height via parameter
> (w and h), UMD will failed to do EndPicture.
> >
> > are you suggesting to add check to avoid this ?
> >
> I think both case need to support
Thank you, I got it, new version patch will be sent out soon.
> > >
> > > How about overlay_x > main_width && overlay_y > main_height?
> > only main surface will be output in this occasion.
> >
> > >
> > > > + if (!ctx->overlay_w && !ctx->overlay_h) {
> > > > + overlay_region.width = ctx->overlay_w;
> > > > + overlay_region.height = ctx->overlay_h;
> > > > + }
> > > > +
> > > > + params.filters = &vpp_ctx->filter_buffers[0];
> > > > + params.num_filters = vpp_ctx->nb_filter_buffers;
> > > > +
> > > > + params.surface = main_surface;
> > > > + params.surface_region = &main_region;
> > > > +
> > > > + switch (input_main->colorspace) {
> > > > + case AVCOL_SPC_BT470BG:
> > > > + params.surface_color_standard = VAProcColorStandardBT601;
> > > > + break;
> > > > + case AVCOL_SPC_BT709:
> > > > + params.surface_color_standard = VAProcColorStandardBT709;
> > > > + break;
> > > > + default:
> > > > + params.surface_color_standard = VAProcColorStandardNone;
> > > > + break;
> > > > + }
> > > > +
> > > > + params.output_region = &output_region;
> > > > + params.output_background_color =
> VAAPI_VPP_BACKGROUND_BLACK;
> > > > + params.output_color_standard = params.surface_color_standard;
> > > > +
> > > > + memcpy(&subpic_params, ¶ms, sizeof(subpic_params));
> > > > + subpic_params.pipeline_flags |= VA_PROC_PIPELINE_FAST;
> > > > + subpic_params.filter_flags |= VA_FILTER_SCALING_FAST;
> > > > +
> > > > +#if VA_CHECK_VERSION(2, 1, 0)
> > > > + blend_state.global_alpha = ctx->overlay_alpha;
> > > > + subpic_params.blend_state = &blend_state; #endif
> > > > +
> > > > + subpic_params.surface = overlay_surface;
> > > > + subpic_params.output_region = &overlay_region;
> > > > +
> > > > + err = ff_vaapi_vpp_render_overlay(avctx, ¶ms,
> > > > + &subpic_params,
> > > output_surface);
> > > > + if (err < 0)
> > > > + goto fail;
> > > > +
> > > > + err = av_frame_copy_props(output, input_main);
> > > > + if (err < 0)
> > > > + goto fail;
> > > > +
> > > > + av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u
> > > (%"PRId64").\n",
> > > > + av_get_pix_fmt_name(output->format),
> > > > + output->width, output->height, output->pts);
> > > > +
> > > > + return ff_filter_frame(outlink, output);
> > > > +
> > > > +fail:
> > > > + av_frame_free(&output);
> > > > + return err;
> > > > +}
> > > > +
> > > > +static int overlay_vaapi_init_framesync(AVFilterContext *avctx) {
> > > > + OverlayVAAPIContext *ctx = avctx->priv;
> > > > + int ret, i;
> > > > +
> > > > + ctx->fs.on_event = overlay_vaapi_blend;
> > > > + ctx->fs.opaque = ctx;
> > > > + ret = ff_framesync_init(&ctx->fs, avctx, avctx->nb_inputs);
> > > > + if (ret < 0)
> > > > + return ret;
> > > > +
> > > > + for (i = 0; i < avctx->nb_inputs; i++) {
> > > > + FFFrameSyncIn *in = &ctx->fs.in[i];
> > > > + in->before = EXT_STOP;
> > > > + in->after = EXT_INFINITY;
> > > > + in->sync = i ? 1 : 2;
> > > > + in->time_base = avctx->inputs[i]->time_base;
> > > > + }
> > > > +
> > > > + return ff_framesync_configure(&ctx->fs); }
> > > > +
> > > > +static int overlay_vaapi_config_output(AVFilterLink *outlink) {
> > > > + AVFilterContext *avctx = outlink->src;
> > > > + OverlayVAAPIContext *ctx = avctx->priv;
> > > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > > + AVFilterLink *in0 = avctx->inputs[0];
> > > > + AVFilterLink *in1 = avctx->inputs[1];
> > > > + int err;
> > > > +
> > > > + av_log(ctx, AV_LOG_DEBUG, "Output is of %s.\n",
> > > av_get_pix_fmt_name(outlink->format));
> > > > + if ((in0->format == AV_PIX_FMT_VAAPI && in1->format !=
> > > AV_PIX_FMT_VAAPI) ||
> > > > + (in0->format != AV_PIX_FMT_VAAPI && in1->format ==
> > > AV_PIX_FMT_VAAPI)) {
> > > > + av_log(ctx, AV_LOG_ERROR, "Mixing hardware and software
> > > > + pixel
> > > formats is not supported.\n");
> > > > + return AVERROR(EINVAL);
> > > > + }
> > > > +
> > > > + err = overlay_vaapi_init_framesync(avctx);
> > > > + if (err < 0)
> > > > + return err;
> > > > +
> > > > + vpp_ctx->output_width = avctx->inputs[0]->w;
> > > > + vpp_ctx->output_height = avctx->inputs[0]->h;
> > > > +
> > > > + err = ff_vaapi_vpp_config_output(outlink);
> > > > + if (err < 0)
> > > > + return err;
> > > > +
> > > > + err = ff_framesync_init_dualinput(&ctx->fs, avctx);
> > > > + if (err < 0)
> > > > + return err;
> > > > +
> > > > + return ff_framesync_configure(&ctx->fs); }
> > > > +
> > > > +static av_cold int overlay_vaapi_init(AVFilterContext *avctx) {
> > > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > > +
> > > > + ff_vaapi_vpp_ctx_init(avctx);
> > > > + vpp_ctx->output_format = AV_PIX_FMT_NONE;
> > > > +
> > > > + return 0;
> > > > +}
> > > > +
> > > > +static int overlay_vaapi_activate(AVFilterContext *avctx) {
> > > > + OverlayVAAPIContext *ctx = avctx->priv;
> > > > +
> > > > + return ff_framesync_activate(&ctx->fs); }
> > > > +
> > > > +static av_cold void overlay_vaapi_uninit(AVFilterContext *avctx) {
> > > > + OverlayVAAPIContext *ctx = avctx->priv;
> > > > +
> > > > + ff_framesync_uninit(&ctx->fs); }
> > > > +
> > > > +static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int
> > > > +h) {
> > > > + return ff_default_get_video_buffer(inlink, w, h); }
> > > > +
> > > > +#define OFFSET(x) offsetof(OverlayVAAPIContext, x) #define FLAGS
> > > > +(AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
> static
> > > const
> > > > +AVOption overlay_vaapi_options[] = {
> > > > + { "x", "Overlay x position",
> > > > + OFFSET(overlay_x), AV_OPT_TYPE_INT, { .i64 = 0 }, 0,
> > > > +INT_MAX, .flags =
> > > FLAGS },
> > > > + { "y", "Overlay y position",
> > > > + OFFSET(overlay_y), AV_OPT_TYPE_INT, { .i64 = 0 }, 0,
> > > > + INT_MAX, .flags =
> > > FLAGS },
> > > > + { "w", "Overlay width",
> > > > + OFFSET(overlay_w), AV_OPT_TYPE_INT, { .i64 = 0 }, 0,
> > > > + INT_MAX, .flags =
> > > FLAGS },
> > > > + { "h", "Overlay hight",
> > > > + OFFSET(overlay_h), AV_OPT_TYPE_INT, { .i64 = 0 }, 0,
> > > > + INT_MAX, .flags =
> > > FLAGS },
> > > > + { "alpha", "Overlay global alpha",
> > > > + OFFSET(overlay_alpha), AV_OPT_TYPE_FLOAT, { .dbl = 0.0},
> > > > + 0.0,
> > > 1.0, .flags = FLAGS},
> > > > + { NULL },
> > > > +};
> > > > +
> > > > +AVFILTER_DEFINE_CLASS(overlay_vaapi);
> > > > +
> > > > +static const AVFilterPad overlay_vaapi_inputs[] = {
> > > > + {
> > > > + .name = "main",
> > > > + .type = AVMEDIA_TYPE_VIDEO,
> > > > + .get_video_buffer = get_video_buffer,
> > > > + .config_props = &ff_vaapi_vpp_config_input,
> > > > + .needs_fifo = 1,
> > > > + },
> > > > + {
> > > > + .name = "overlay",
> > > > + .type = AVMEDIA_TYPE_VIDEO,
> > > > + .get_video_buffer = get_video_buffer,
> > > > + .config_props = &ff_vaapi_vpp_config_input,
> > > > + .needs_fifo = 1,
> > > > + },
> > > > + { NULL }
> > > > +};
> > > > +
> > > > +static const AVFilterPad overlay_vaapi_outputs[] = {
> > > > + {
> > > > + .name = "default",
> > > > + .type = AVMEDIA_TYPE_VIDEO,
> > > > + .config_props = &overlay_vaapi_config_output,
> > > > + },
> > > > + { NULL }
> > > > +};
> > > > +
> > > > +AVFilter ff_vf_overlay_vaapi = {
> > > > + .name = "overlay_vaapi",
> > > > + .description = NULL_IF_CONFIG_SMALL("Overlay one video on top
> of
> > > another"),
> > > > + .priv_size = sizeof(OverlayVAAPIContext),
> > > > + .priv_class = &overlay_vaapi_class,
> > > > + .init = &overlay_vaapi_init,
> > > > + .uninit = &overlay_vaapi_uninit,
> > > > + .query_formats = &overlay_vaapi_query_formats,
> > > > + .activate = &overlay_vaapi_activate,
> > > > + .inputs = overlay_vaapi_inputs,
> > > > + .outputs = overlay_vaapi_outputs,
> > > > + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, };
> > > > --
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