lavfi: Add VAAPI deinterlacer

(cherry picked from commit ade370a4d7eab1866b6023c91c135d27c77ca465)
(cherry picked from commit 2d518aec4c781316092be65893b47922c8f71b67)

5 files changed, 638 insertions, 1 deletions

diff --git a/configure b/configure
index 396333d7a3..0199fec5c0 100755
--- a/configure
+++ b/configure
@@ -3084,6 +3084,7 @@ bs2b_filter_deps="libbs2b"
 colormatrix_filter_deps="gpl"
 cover_rect_filter_deps="avcodec avformat gpl"
 cropdetect_filter_deps="gpl"
+deinterlace_vaapi_filter_deps="vaapi"
 delogo_filter_deps="gpl"
 deshake_filter_select="pixelutils"
 drawtext_filter_deps="libfreetype"
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 695167c9f6..0ba1c74a26 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -156,6 +156,7 @@ OBJS-$(CONFIG_DCTDNOIZ_FILTER)               += vf_dctdnoiz.o
 OBJS-$(CONFIG_DEBAND_FILTER)                 += vf_deband.o
 OBJS-$(CONFIG_DECIMATE_FILTER)               += vf_decimate.o
 OBJS-$(CONFIG_DEFLATE_FILTER)                += vf_neighbor.o
+OBJS-$(CONFIG_DEINTERLACE_VAAPI_FILTER)      += vf_deinterlace_vaapi.o
 OBJS-$(CONFIG_DEJUDDER_FILTER)               += vf_dejudder.o
 OBJS-$(CONFIG_DELOGO_FILTER)                 += vf_delogo.o
 OBJS-$(CONFIG_DESHAKE_FILTER)                += vf_deshake.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 40cf0f434a..15a74c4eed 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -172,6 +172,7 @@ void avfilter_register_all(void)
     REGISTER_FILTER(DEBAND,         deband,         vf);
     REGISTER_FILTER(DECIMATE,       decimate,       vf);
     REGISTER_FILTER(DEFLATE,        deflate,        vf);
+    REGISTER_FILTER(DEINTERLACE_VAAPI, deinterlace_vaapi, vf);
     REGISTER_FILTER(DEJUDDER,       dejudder,       vf);
     REGISTER_FILTER(DELOGO,         delogo,         vf);
     REGISTER_FILTER(DESHAKE,        deshake,        vf);
diff --git a/libavfilter/version.h b/libavfilter/version.h
index 0be3f9ea73..11db8d5513 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -30,7 +30,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVFILTER_VERSION_MAJOR   6
-#define LIBAVFILTER_VERSION_MINOR  73
+#define LIBAVFILTER_VERSION_MINOR  74
 #define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_deinterlace_vaapi.c b/libavfilter/vf_deinterlace_vaapi.c
new file mode 100644
index 0000000000..032e65b225
--- /dev/null
+++ b/libavfilter/vf_deinterlace_vaapi.c
@@ -0,0 +1,634 @@
+/*
+ * 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 <va/va.h>
+#include <va/va_vpp.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/hwcontext_vaapi.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+
+#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "video.h"
+
+#define MAX_REFERENCES 8
+
+typedef struct DeintVAAPIContext {
+    const AVClass     *class;
+
+    AVVAAPIDeviceContext *hwctx;
+    AVBufferRef       *device_ref;
+
+    int                mode;
+
+    int                valid_ids;
+    VAConfigID         va_config;
+    VAContextID        va_context;
+
+    AVBufferRef       *input_frames_ref;
+    AVHWFramesContext *input_frames;
+
+    AVBufferRef       *output_frames_ref;
+    AVHWFramesContext *output_frames;
+    int                output_height;
+    int                output_width;
+
+    VAProcFilterCapDeinterlacing
+                       deint_caps[VAProcDeinterlacingCount];
+    int             nb_deint_caps;
+    VAProcPipelineCaps pipeline_caps;
+
+    int                queue_depth;
+    int                queue_count;
+    AVFrame           *frame_queue[MAX_REFERENCES];
+
+    VABufferID         filter_buffer;
+} DeintVAAPIContext;
+
+static const char *deint_vaapi_mode_name(int mode)
+{
+    switch (mode) {
+#define D(name) case VAProcDeinterlacing ## name: return #name
+        D(Bob);
+        D(Weave);
+        D(MotionAdaptive);
+        D(MotionCompensated);
+#undef D
+    default:
+        return "Invalid";
+    }
+}
+
+static int deint_vaapi_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;
+}
+
+static int deint_vaapi_pipeline_uninit(AVFilterContext *avctx)
+{
+    DeintVAAPIContext *ctx = avctx->priv;
+    int i;
+
+    for (i = 0; i < ctx->queue_count; i++)
+        av_frame_free(&ctx->frame_queue[i]);
+    ctx->queue_count = 0;
+
+    if (ctx->filter_buffer != VA_INVALID_ID) {
+        vaDestroyBuffer(ctx->hwctx->display, ctx->filter_buffer);
+        ctx->filter_buffer = VA_INVALID_ID;
+    }
+
+    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;
+
+    return 0;
+}
+
+static int deint_vaapi_config_input(AVFilterLink *inlink)
+{
+    AVFilterContext   *avctx = inlink->dst;
+    DeintVAAPIContext *ctx = avctx->priv;
+
+    deint_vaapi_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);
+    ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;
+
+    return 0;
+}
+
+static int deint_vaapi_build_filter_params(AVFilterContext *avctx)
+{
+    DeintVAAPIContext *ctx = avctx->priv;
+    VAStatus vas;
+    VAProcFilterParameterBufferDeinterlacing params;
+    int i;
+
+    ctx->nb_deint_caps = VAProcDeinterlacingCount;
+    vas = vaQueryVideoProcFilterCaps(ctx->hwctx->display,
+                                     ctx->va_context,
+                                     VAProcFilterDeinterlacing,
+                                     &ctx->deint_caps,
+                                     &ctx->nb_deint_caps);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to query deinterlacing "
+               "caps: %d (%s).\n", vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+
+    if (ctx->mode == VAProcDeinterlacingNone) {
+        for (i = 0; i < ctx->nb_deint_caps; i++) {
+            if (ctx->deint_caps[i].type > ctx->mode)
+                ctx->mode = ctx->deint_caps[i].type;
+        }
+        av_log(avctx, AV_LOG_VERBOSE, "Picking %d (%s) as default "
+               "deinterlacing mode.\n", ctx->mode,
+               deint_vaapi_mode_name(ctx->mode));
+    } else {
+        for (i = 0; i < ctx->nb_deint_caps; i++) {
+            if (ctx->deint_caps[i].type == ctx->mode)
+                break;
+        }
+        if (i >= ctx->nb_deint_caps) {
+            av_log(avctx, AV_LOG_ERROR, "Deinterlacing mode %d (%s) is "
+                   "not supported.\n", ctx->mode,
+                   deint_vaapi_mode_name(ctx->mode));
+        }
+    }
+
+    params.type      = VAProcFilterDeinterlacing;
+    params.algorithm = ctx->mode;
+    params.flags     = 0;
+
+    av_assert0(ctx->filter_buffer == VA_INVALID_ID);
+    vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
+                         VAProcFilterParameterBufferType,
+                         sizeof(params), 1, &params,
+                         &ctx->filter_buffer);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to create deinterlace "
+               "parameter buffer: %d (%s).\n", vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+
+    vas = vaQueryVideoProcPipelineCaps(ctx->hwctx->display,
+                                       ctx->va_context,
+                                       &ctx->filter_buffer, 1,
+                                       &ctx->pipeline_caps);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to query pipeline "
+               "caps: %d (%s).\n", vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+
+    ctx->queue_depth = ctx->pipeline_caps.num_backward_references +
+                       ctx->pipeline_caps.num_forward_references + 1;
+    if (ctx->queue_depth > MAX_REFERENCES) {
+        av_log(avctx, AV_LOG_ERROR, "Pipeline requires too many "
+               "references (%u forward, %u back).\n",
+               ctx->pipeline_caps.num_forward_references,
+               ctx->pipeline_caps.num_backward_references);
+        return AVERROR(ENOSYS);
+    }
+
+    return 0;
+}
+
+static int deint_vaapi_config_output(AVFilterLink *outlink)
+{
+    AVFilterContext    *avctx = outlink->src;
+    DeintVAAPIContext    *ctx = avctx->priv;
+    AVVAAPIHWConfig *hwconfig = NULL;
+    AVHWFramesConstraints *constraints = NULL;
+    AVVAAPIFramesContext *va_frames;
+    VAStatus vas;
+    int err;
+
+    deint_vaapi_pipeline_uninit(avctx);
+
+    av_assert0(ctx->input_frames);
+    ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
+    ctx->hwctx = ((AVHWDeviceContext*)ctx->device_ref->data)->hwctx;
+
+    ctx->output_width  = ctx->input_frames->width;
+    ctx->output_height = ctx->input_frames->height;
+
+    av_assert0(ctx->va_config == VA_INVALID_ID);
+    vas = vaCreateConfig(ctx->hwctx->display, VAProfileNone,
+                         VAEntrypointVideoProc, 0, 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_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 "
+               "deinterlacing 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;
+    }
+
+    ctx->output_frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
+    if (!ctx->output_frames_ref) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to create HW frame context "
+               "for output.\n");
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ctx->output_frames = (AVHWFramesContext*)ctx->output_frames_ref->data;
+
+    ctx->output_frames->format    = AV_PIX_FMT_VAAPI;
+    ctx->output_frames->sw_format = ctx->input_frames->sw_format;
+    ctx->output_frames->width     = ctx->output_width;
+    ctx->output_frames->height    = ctx->output_height;
+
+    // The number of output frames we need is determined by what follows
+    // the filter.  If it's an encoder with complex frame reference
+    // structures then this could be very high.
+    ctx->output_frames->initial_pool_size = 10;
+
+    err = av_hwframe_ctx_init(ctx->output_frames_ref);
+    if (err < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to initialise VAAPI frame "
+               "context for output: %d\n", err);
+        goto fail;
+    }
+
+    va_frames = ctx->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, 0,
+                          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));
+        err = AVERROR(EIO);
+        goto fail;
+    }
+
+    err = deint_vaapi_build_filter_params(avctx);
+    if (err < 0)
+        goto fail;
+
+    outlink->w = ctx->output_width;
+    outlink->h = ctx->output_height;
+
+    outlink->hw_frames_ctx = av_buffer_ref(ctx->output_frames_ref);
+    if (!outlink->hw_frames_ctx) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    av_freep(&hwconfig);
+    av_hwframe_constraints_free(&constraints);
+    return 0;
+
+fail:
+    av_buffer_unref(&ctx->output_frames_ref);
+    av_freep(&hwconfig);
+    av_hwframe_constraints_free(&constraints);
+    return err;
+}
+
+static int vaapi_proc_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,   BT470BG);
+        CS(SMPTE170M, SMPTE170M);
+        CS(SMPTE240M, SMPTE240M);
+#undef CS
+    default:
+        return VAProcColorStandardNone;
+    }
+}
+
+static int deint_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
+{
+    AVFilterContext   *avctx = inlink->dst;
+    AVFilterLink    *outlink = avctx->outputs[0];
+    DeintVAAPIContext *ctx = avctx->priv;
+    AVFrame *output_frame = NULL;
+    VASurfaceID input_surface, output_surface;
+    VASurfaceID backward_references[MAX_REFERENCES];
+    VASurfaceID forward_references[MAX_REFERENCES];
+    VAProcPipelineParameterBuffer params;
+    VAProcFilterParameterBufferDeinterlacing *filter_params;
+    VARectangle input_region;
+    VABufferID params_id;
+    VAStatus vas;
+    void *filter_params_addr = NULL;
+    int err, i;
+
+    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 (ctx->queue_count < ctx->queue_depth) {
+        ctx->frame_queue[ctx->queue_count++] = input_frame;
+        if (ctx->queue_count < ctx->queue_depth) {
+            // Need more reference surfaces before we can continue.
+            return 0;
+        }
+    } else {
+        av_frame_free(&ctx->frame_queue[0]);
+        for (i = 0; i + 1 < ctx->queue_count; i++)
+            ctx->frame_queue[i] = ctx->frame_queue[i + 1];
+        ctx->frame_queue[i] = input_frame;
+    }
+
+    input_frame =
+        ctx->frame_queue[ctx->pipeline_caps.num_backward_references];
+    input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
+    for (i = 0; i < ctx->pipeline_caps.num_backward_references; i++)
+        backward_references[i] = (VASurfaceID)(uintptr_t)
+            ctx->frame_queue[ctx->pipeline_caps.num_backward_references -
+                             i - 1]->data[3];
+    for (i = 0; i < ctx->pipeline_caps.num_forward_references; i++)
+        forward_references[i] = (VASurfaceID)(uintptr_t)
+            ctx->frame_queue[ctx->pipeline_caps.num_backward_references +
+                             i + 1]->data[3];
+
+    av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for "
+           "deinterlace input.\n", input_surface);
+    av_log(avctx, AV_LOG_DEBUG, "Backward references:");
+    for (i = 0; i < ctx->pipeline_caps.num_backward_references; i++)
+        av_log(avctx, AV_LOG_DEBUG, " %#x", backward_references[i]);
+    av_log(avctx, AV_LOG_DEBUG, "\n");
+    av_log(avctx, AV_LOG_DEBUG, "Forward  references:");
+    for (i = 0; i < ctx->pipeline_caps.num_forward_references; i++)
+        av_log(avctx, AV_LOG_DEBUG, " %#x", forward_references[i]);
+    av_log(avctx, AV_LOG_DEBUG, "\n");
+
+    output_frame = av_frame_alloc();
+    if (!output_frame) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    err = av_hwframe_get_buffer(ctx->output_frames_ref,
+                                output_frame, 0);
+    if (err < 0) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3];
+    av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for "
+           "deinterlace output.\n", output_surface);
+
+    memset(&params, 0, sizeof(params));
+
+    input_region = (VARectangle) {
+        .x      = 0,
+        .y      = 0,
+        .width  = input_frame->width,
+        .height = input_frame->height,
+    };
+
+    params.surface = input_surface;
+    params.surface_region = &input_region;
+    params.surface_color_standard = vaapi_proc_colour_standard(
+        av_frame_get_colorspace(input_frame));
+
+    params.output_region = NULL;
+    params.output_background_color = 0xff000000;
+    params.output_color_standard = params.surface_color_standard;
+
+    params.pipeline_flags = 0;
+    params.filter_flags   = VA_FRAME_PICTURE;
+
+    vas = vaMapBuffer(ctx->hwctx->display, ctx->filter_buffer,
+                      &filter_params_addr);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to map filter parameter "
+               "buffer: %d (%s).\n", vas, vaErrorStr(vas));
+        err = AVERROR(EIO);
+        goto fail;
+    }
+    filter_params = filter_params_addr;
+    filter_params->flags = 0;
+    if (input_frame->interlaced_frame && !input_frame->top_field_first)
+        filter_params->flags |= VA_DEINTERLACING_BOTTOM_FIELD_FIRST;
+    filter_params_addr = NULL;
+    vas = vaUnmapBuffer(ctx->hwctx->display, ctx->filter_buffer);
+    if (vas != VA_STATUS_SUCCESS)
+        av_log(avctx, AV_LOG_ERROR, "Failed to unmap filter parameter "
+               "buffer: %d (%s).\n", vas, vaErrorStr(vas));
+
+    params.filters     = &ctx->filter_buffer;
+    params.num_filters = 1;
+
+    params.forward_references = forward_references;
+    params.num_forward_references =
+        ctx->pipeline_caps.num_forward_references;
+    params.backward_references = backward_references;
+    params.num_backward_references =
+        ctx->pipeline_caps.num_backward_references;
+
+    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 (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.
+        }
+    }
+
+    err = av_frame_copy_props(output_frame, input_frame);
+    if (err < 0)
+        goto fail;
+
+    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_after_begin:
+    vaRenderPicture(ctx->hwctx->display, ctx->va_context, &params_id, 1);
+fail_after_render:
+    vaEndPicture(ctx->hwctx->display, ctx->va_context);
+fail:
+    if (filter_params_addr)
+        vaUnmapBuffer(ctx->hwctx->display, ctx->filter_buffer);
+    av_frame_free(&output_frame);
+    return err;
+}
+
+static av_cold int deint_vaapi_init(AVFilterContext *avctx)
+{
+    DeintVAAPIContext *ctx = avctx->priv;
+
+    ctx->va_config     = VA_INVALID_ID;
+    ctx->va_context    = VA_INVALID_ID;
+    ctx->filter_buffer = VA_INVALID_ID;
+    ctx->valid_ids = 1;
+
+    return 0;
+}
+
+static av_cold void deint_vaapi_uninit(AVFilterContext *avctx)
+{
+    DeintVAAPIContext *ctx = avctx->priv;
+
+    if (ctx->valid_ids)
+        deint_vaapi_pipeline_uninit(avctx);
+
+    av_buffer_unref(&ctx->input_frames_ref);
+    av_buffer_unref(&ctx->output_frames_ref);
+    av_buffer_unref(&ctx->device_ref);
+}
+
+#define OFFSET(x) offsetof(DeintVAAPIContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption deint_vaapi_options[] = {
+    { "mode", "Deinterlacing mode",
+      OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = VAProcDeinterlacingNone },
+      VAProcDeinterlacingNone, VAProcDeinterlacingCount - 1, FLAGS, "mode" },
+    { "default", "Use the highest-numbered (and therefore possibly most advanced) deinterlacing algorithm",
+      0, AV_OPT_TYPE_CONST, { .i64 = VAProcDeinterlacingNone }, .unit = "mode" },
+    { "bob", "Use the bob deinterlacing algorithm",
+      0, AV_OPT_TYPE_CONST, { .i64 = VAProcDeinterlacingBob }, .unit = "mode" },
+    { "weave", "Use the weave deinterlacing algorithm",
+      0, AV_OPT_TYPE_CONST, { .i64 = VAProcDeinterlacingWeave }, .unit = "mode" },
+    { "motion_adaptive", "Use the motion adaptive deinterlacing algorithm",
+      0, AV_OPT_TYPE_CONST, { .i64 = VAProcDeinterlacingMotionAdaptive }, .unit = "mode" },
+    { "motion_compensated", "Use the motion compensated deinterlacing algorithm",
+      0, AV_OPT_TYPE_CONST, { .i64 = VAProcDeinterlacingMotionCompensated }, .unit = "mode" },
+    { NULL },
+};
+
+static const AVClass deint_vaapi_class = {
+    .class_name = "deinterlace_vaapi",
+    .item_name  = av_default_item_name,
+    .option     = deint_vaapi_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVFilterPad deint_vaapi_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .filter_frame = &deint_vaapi_filter_frame,
+        .config_props = &deint_vaapi_config_input,
+    },
+    { NULL }
+};
+
+static const AVFilterPad deint_vaapi_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+        .config_props = &deint_vaapi_config_output,
+    },
+    { NULL }
+};
+
+AVFilter ff_vf_deinterlace_vaapi = {
+    .name           = "deinterlace_vaapi",
+    .description    = NULL_IF_CONFIG_SMALL("Deinterlacing of VAAPI surfaces"),
+    .priv_size      = sizeof(DeintVAAPIContext),
+    .init           = &deint_vaapi_init,
+    .uninit         = &deint_vaapi_uninit,
+    .query_formats  = &deint_vaapi_query_formats,
+    .inputs         = deint_vaapi_inputs,
+    .outputs        = deint_vaapi_outputs,
+    .priv_class     = &deint_vaapi_class,
+};