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avfilter: add VA-API variants of the stack filters

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Include hstack_vaapi, vstack_vaapi and xstack_vaapi. They may accept
input streams with different sizes.  libva2 (VA-API 1.0+) is required.

Example:
$ ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -i input.h265 -filter_complex
"[0:v][0:v]hstack_vaapi" -c:v h264_vaapi out.h264

$ ffmpeg \
-hwaccel vaapi -hwaccel_output_format vaapi -i input.h264 \
-hwaccel vaapi -hwaccel_output_format vaapi -i input.h264 \
-hwaccel vaapi -hwaccel_output_format vaapi -i input.h264 \
-hwaccel vaapi -hwaccel_output_format vaapi -i input.h264 \
-filter_complex "[0:v][1:v][2:v][3:v]xstack_vaapi=inputs=4:fill=0x000000:layout=0_0_1920x1080|w0_0_1920x1080|0_h0_1920x1080|w0_h0_1920x1080" \
-c:v hevc_vaapi out.h265

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
This commit is contained in:
Haihao Xiang 2023-01-19 16:30:06 +08:00
parent 4e3b6270c6
commit aecfec6f80
7 changed files with 666 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Changelog
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@ -33,6 +33,7 @@ version <next>:
- CBD2 DPCM decoder
- ssim360 video filter
- ffmpeg CLI new options: -enc_stats_pre[_fmt], -enc_stats_post[_fmt]
- hstack_vaapi, vstack_vaapi and xstack_vaapi filters
version 5.1:

3
configure vendored
View File

@ -3766,6 +3766,9 @@ xfade_opencl_filter_deps="opencl"
yadif_cuda_filter_deps="ffnvcodec"
yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
yadif_videotoolbox_filter_deps="metal corevideo videotoolbox"
hstack_vaapi_filter_deps="vaapi_1"
vstack_vaapi_filter_deps="vaapi_1"
xstack_vaapi_filter_deps="vaapi_1"
# examples
avio_list_dir_deps="avformat avutil"

81
doc/filters.texi
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@ -14941,6 +14941,7 @@ Set the scaling dimension: @code{2} for @code{hq2x}, @code{3} for
Default is @code{3}.
@end table
@anchor{hstack}
@section hstack
Stack input videos horizontally.
@ -24392,6 +24393,7 @@ Example:
ffmpeg -i ref.mpg -vf vmafmotion -f null -
@end example
@anchor{vstack}
@section vstack
Stack input videos vertically.
@ -24873,6 +24875,7 @@ minimum values, and @code{1} maximum values.
This filter supports all above options as @ref{commands}, excluding option @code{inputs}.
@anchor{xstack}
@section xstack
Stack video inputs into custom layout.
@ -26689,6 +26692,84 @@ tonemap_vaapi=format=p010:t=bt2020-10
@end example
@end itemize
@section hstack_vaapi
Stack input videos horizontally.
This is the VA-API variant of the @ref{hstack} filter, each input stream may
have different height, this filter will scale down/up each input stream while
keeping the orignal aspect.
It accepts the following options:
@table @option
@item inputs
See @ref{hstack}.
@item shortest
See @ref{hstack}.
@item height
Set height of output. If set to 0, this filter will set height of output to
height of the first input stream. Default value is 0.
@end table
@section vstack_vaapi
Stack input videos vertically.
This is the VA-API variant of the @ref{vstack} filter, each input stream may
have different width, this filter will scale down/up each input stream while
keeping the orignal aspect.
It accepts the following options:
@table @option
@item inputs
See @ref{vstack}.
@item shortest
See @ref{vstack}.
@item width
Set width of output. If set to 0, this filter will set width of output to
width of the first input stream. Default value is 0.
@end table
@section xstack_vaapi
Stack video inputs into custom layout.
This is the VA-API variant of the @ref{xstack} filter, each input stream may
have different size, this filter will scale down/up each input stream to the
given output size, or the size of the first input stream.
It accepts the following options:
@table @option
@item inputs
See @ref{xstack}.
@item shortest
See @ref{xstack}.
@item layout
See @ref{xstack}.
Moreover, this permits the user to supply output size for each input stream.
@example
xstack_vaapi=inputs=4:layout=0_0_1920x1080|0_h0_1920x1080|w0_0_1920x1080|w0_h0_1920x1080
@end example
@item grid
See @ref{xstack}.
@item grid_tile_size
Set output size for each input stream when @option{grid} is set. If this option
is not set, this filter will set output size by default to the size of the
first input stream. For the syntax of this option, check the
@ref{video size syntax,,"Video size" section in the ffmpeg-utils manual,ffmpeg-utils}.
@item fill
See @ref{xstack}.
@end table
@c man end VAAPI VIDEO FILTERS
@chapter Video Sources

3
libavfilter/Makefile
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@ -558,6 +558,9 @@ OBJS-$(CONFIG_YAEPBLUR_FILTER) += vf_yaepblur.o
OBJS-$(CONFIG_ZMQ_FILTER) += f_zmq.o
OBJS-$(CONFIG_ZOOMPAN_FILTER) += vf_zoompan.o
OBJS-$(CONFIG_ZSCALE_FILTER) += vf_zscale.o
OBJS-$(CONFIG_HSTACK_VAAPI_FILTER) += vf_stack_vaapi.o framesync.o vaapi_vpp.o
OBJS-$(CONFIG_VSTACK_VAAPI_FILTER) += vf_stack_vaapi.o framesync.o vaapi_vpp.o
OBJS-$(CONFIG_XSTACK_VAAPI_FILTER) += vf_stack_vaapi.o framesync.o vaapi_vpp.o
OBJS-$(CONFIG_ALLRGB_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_ALLYUV_FILTER) += vsrc_testsrc.o

3
libavfilter/allfilters.c
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@ -523,6 +523,9 @@ extern const AVFilter ff_vf_yaepblur;
extern const AVFilter ff_vf_zmq;
extern const AVFilter ff_vf_zoompan;
extern const AVFilter ff_vf_zscale;
extern const AVFilter ff_vf_hstack_vaapi;
extern const AVFilter ff_vf_vstack_vaapi;
extern const AVFilter ff_vf_xstack_vaapi;
extern const AVFilter ff_vsrc_allrgb;
extern const AVFilter ff_vsrc_allyuv;

2
libavfilter/version.h
View File

@ -31,7 +31,7 @@
#include "version_major.h"
#define LIBAVFILTER_VERSION_MINOR 55
#define LIBAVFILTER_VERSION_MINOR 56
#define LIBAVFILTER_VERSION_MICRO 100

574
libavfilter/vf_stack_vaapi.c Normal file
View File

@ -0,0 +1,574 @@
/*
* 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
*/
/**
* @file
* Hardware accelerated hstack, vstack and xstack filters based on VA-API
*/
#include "config_components.h"
#include "libavutil/opt.h"
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "libavutil/eval.h"
#include "libavutil/hwcontext.h"
#include "libavutil/avstring.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
#include "libavutil/mem.h"
#include "internal.h"
#include "filters.h"
#include "formats.h"
#include "video.h"
#include "framesync.h"
#include "vaapi_vpp.h"
#define OFFSET(x) offsetof(StackVAAPIContext, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
enum {
STACK_VAAPI_H = 0,
STACK_VAAPI_V = 1,
STACK_VAAPI_X = 2
};
typedef struct StackVAAPIContext {
VAAPIVPPContext vppctx; /**< must be the first field */
FFFrameSync fs;
int mode;
VARectangle *rects;
uint8_t fillcolor[4];
int fillcolor_enable;
/* Options */
int nb_inputs;
int shortest;
int tile_width;
int tile_height;
int nb_grid_columns;
int nb_grid_rows;
char *layout;
char *fillcolor_str;
} StackVAAPIContext;
static int process_frame(FFFrameSync *fs)
{
AVFilterContext *avctx = fs->parent;
AVFilterLink *outlink = avctx->outputs[0];
StackVAAPIContext *sctx = fs->opaque;
VAAPIVPPContext *vppctx = fs->opaque;
AVFrame *oframe, *iframe;
VAProcPipelineParameterBuffer *params = NULL;
VARectangle *irect = NULL;
int ret = 0;
if (vppctx->va_context == VA_INVALID_ID)
return AVERROR(EINVAL);
oframe = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!oframe)
return AVERROR(ENOMEM);
irect = av_calloc(avctx->nb_inputs, sizeof(*irect));
params = av_calloc(avctx->nb_inputs, sizeof(*params));
if (!irect || !params) {
ret = AVERROR(ENOMEM);
goto fail;
}
for (int i = 0; i < avctx->nb_inputs; i++) {
ret = ff_framesync_get_frame(fs, i, &iframe, 0);
if (ret)
goto fail;
if (i == 0) {
ret = av_frame_copy_props(oframe, iframe);
if (ret < 0)
goto fail;
}
ret = ff_vaapi_vpp_init_params(avctx, &params[i], iframe, oframe);
if (ret)
goto fail;
av_log(avctx, AV_LOG_DEBUG, "stack input %d: %s, %ux%u (%"PRId64").\n",
i, av_get_pix_fmt_name(iframe->format),
iframe->width, iframe->height, iframe->pts);
irect[i].x = 0;
irect[i].y = 0;
irect[i].width = iframe->width;
irect[i].height = iframe->height;
params[i].surface_region = &irect[i];
params[i].surface = (VASurfaceID)(uintptr_t)iframe->data[3];
params[i].output_region = &sctx->rects[i];
if (sctx->fillcolor_enable)
params[i].output_background_color = (sctx->fillcolor[3] << 24 |
sctx->fillcolor[0] << 16 |
sctx->fillcolor[1] << 8 |
sctx->fillcolor[2]);
}
oframe->pts = av_rescale_q(sctx->fs.pts, sctx->fs.time_base, outlink->time_base);
oframe->sample_aspect_ratio = outlink->sample_aspect_ratio;
ret = ff_vaapi_vpp_render_pictures(avctx, params, avctx->nb_inputs, oframe);
if (ret)
goto fail;
av_freep(&irect);
av_freep(&params);
return ff_filter_frame(outlink, oframe);
fail:
av_freep(&irect);
av_freep(&params);
av_frame_free(&oframe);
return ret;
}
static int init_framesync(AVFilterContext *avctx)
{
StackVAAPIContext *sctx = avctx->priv;
int ret;
ret = ff_framesync_init(&sctx->fs, avctx, avctx->nb_inputs);
if (ret < 0)
return ret;
sctx->fs.on_event = process_frame;
sctx->fs.opaque = sctx;
for (int i = 0; i < sctx->nb_inputs; i++) {
FFFrameSyncIn *in = &sctx->fs.in[i];
in->before = EXT_STOP;
in->after = sctx->shortest ? EXT_STOP : EXT_INFINITY;
in->sync = 1;
in->time_base = avctx->inputs[i]->time_base;
}
return ff_framesync_configure(&sctx->fs);
}
#define SET_INPUT_REGION(rect, rx, ry, rw, rh) do { \
rect->x = rx; \
rect->y = ry; \
rect->width = rw; \
rect->height = rh; \
} while (0)
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *avctx = outlink->src;
StackVAAPIContext *sctx = avctx->priv;
VAAPIVPPContext *vppctx = avctx->priv;
AVFilterLink *inlink0 = avctx->inputs[0];
AVHWFramesContext *hwfc0 = NULL;
int width, height, ret;
if (inlink0->format != AV_PIX_FMT_VAAPI || !inlink0->hw_frames_ctx || !inlink0->hw_frames_ctx->data) {
av_log(avctx, AV_LOG_ERROR, "Software pixel format is not supported.\n");
return AVERROR(EINVAL);
}
hwfc0 = (AVHWFramesContext *)inlink0->hw_frames_ctx->data;
for (int i = 1; i < sctx->nb_inputs; i++) {
AVFilterLink *inlink = avctx->inputs[i];
AVHWFramesContext *hwfc = NULL;
if (inlink->format != AV_PIX_FMT_VAAPI || !inlink->hw_frames_ctx || !inlink->hw_frames_ctx->data) {
av_log(avctx, AV_LOG_ERROR, "Software pixel format is not supported.\n");
return AVERROR(EINVAL);
}
hwfc = (AVHWFramesContext *)inlink->hw_frames_ctx->data;
if (hwfc0->sw_format != hwfc->sw_format) {
av_log(avctx, AV_LOG_ERROR, "All inputs should have the same underlying software pixel format.\n");
return AVERROR(EINVAL);
}
if (hwfc0->device_ctx != hwfc->device_ctx) {
av_log(avctx, AV_LOG_ERROR, "All inputs should have the same underlying vaapi devices.\n");
return AVERROR(EINVAL);
}
}
ff_vaapi_vpp_config_input(inlink0);
vppctx->output_format = hwfc0->sw_format;
if (sctx->mode == STACK_VAAPI_H) {
height = sctx->tile_height;
width = 0;
if (!height)
height = inlink0->h;
for (int i = 0; i < sctx->nb_inputs; i++) {
AVFilterLink *inlink = avctx->inputs[i];
VARectangle *rect = &sctx->rects[i];
SET_INPUT_REGION(rect, width, 0, av_rescale(height, inlink->w, inlink->h), height);
width += av_rescale(height, inlink->w, inlink->h);
}
} else if (sctx->mode == STACK_VAAPI_V) {
height = 0;
width = sctx->tile_width;
if (!width)
width = inlink0->w;
for (int i = 0; i < sctx->nb_inputs; i++) {
AVFilterLink *inlink = avctx->inputs[i];
VARectangle *rect = &sctx->rects[i];
SET_INPUT_REGION(rect, 0, height, width, av_rescale(width, inlink->h, inlink->w));
height += av_rescale(width, inlink->h, inlink->w);
}
} else if (sctx->nb_grid_rows && sctx->nb_grid_columns) {
int xpos = 0, ypos = 0;
int ow, oh, k = 0;
ow = sctx->tile_width;
oh = sctx->tile_height;
if (!ow || !oh) {
ow = avctx->inputs[0]->w;
oh = avctx->inputs[0]->h;
}
for (int i = 0; i < sctx->nb_grid_columns; i++) {
ypos = 0;
for (int j = 0; j < sctx->nb_grid_rows; j++) {
VARectangle *rect = &sctx->rects[k++];
SET_INPUT_REGION(rect, xpos, ypos, ow, oh);
ypos += oh;
}
xpos += ow;
}
width = ow * sctx->nb_grid_columns;
height = oh * sctx->nb_grid_rows;
} else {
char *arg, *p = sctx->layout, *saveptr = NULL;
char *arg2, *p2, *saveptr2 = NULL;
char *arg3, *p3, *saveptr3 = NULL;
int xpos, ypos, size;
int ow, oh;
width = avctx->inputs[0]->w;
height = avctx->inputs[0]->h;
for (int i = 0; i < sctx->nb_inputs; i++) {
AVFilterLink *inlink = avctx->inputs[i];
VARectangle *rect = &sctx->rects[i];
ow = inlink->w;
oh = inlink->h;
if (!(arg = av_strtok(p, "|", &saveptr)))
return AVERROR(EINVAL);
p = NULL;
p2 = arg;
xpos = ypos = 0;
for (int j = 0; j < 3; j++) {
if (!(arg2 = av_strtok(p2, "_", &saveptr2))) {
if (j == 2)
break;
else
return AVERROR(EINVAL);
}
p2 = NULL;
p3 = arg2;
if (j == 2) {
if ((ret = av_parse_video_size(&ow, &oh, p3)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid size '%s'\n", p3);
return ret;
}
break;
}
while ((arg3 = av_strtok(p3, "+", &saveptr3))) {
p3 = NULL;
if (sscanf(arg3, "w%d", &size) == 1) {
if (size == i || size < 0 || size >= sctx->nb_inputs)
return AVERROR(EINVAL);
if (!j)
xpos += sctx->rects[size].width;
else
ypos += sctx->rects[size].width;
} else if (sscanf(arg3, "h%d", &size) == 1) {
if (size == i || size < 0 || size >= sctx->nb_inputs)
return AVERROR(EINVAL);
if (!j)
xpos += sctx->rects[size].height;
else
ypos += sctx->rects[size].height;
} else if (sscanf(arg3, "%d", &size) == 1) {
if (size < 0)
return AVERROR(EINVAL);
if (!j)
xpos += size;
else
ypos += size;
} else {
return AVERROR(EINVAL);
}
}
}
SET_INPUT_REGION(rect, xpos, ypos, ow, oh);
width = FFMAX(width, xpos + ow);
height = FFMAX(height, ypos + oh);
}
}
outlink->w = width;
outlink->h = height;
outlink->frame_rate = inlink0->frame_rate;
outlink->sample_aspect_ratio = inlink0->sample_aspect_ratio;
for (int i = 1; i < sctx->nb_inputs; i++) {
AVFilterLink *inlink = avctx->inputs[i];
if (outlink->frame_rate.num != inlink->frame_rate.num ||
outlink->frame_rate.den != inlink->frame_rate.den) {
av_log(avctx, AV_LOG_VERBOSE,
"Video inputs have different frame rates, output will be VFR\n");
outlink->frame_rate = av_make_q(1, 0);
break;
}
}
ret = init_framesync(avctx);
if (ret < 0)
return ret;
outlink->time_base = sctx->fs.time_base;
vppctx->output_width = width;
vppctx->output_height = height;
return ff_vaapi_vpp_config_output(outlink);
}
static int vaapi_stack_init(AVFilterContext *avctx)
{
StackVAAPIContext *sctx = avctx->priv;
VAAPIVPPContext *vppctx = avctx->priv;
int ret;
if (!strcmp(avctx->filter->name, "hstack_vaapi"))
sctx->mode = STACK_VAAPI_H;
else if (!strcmp(avctx->filter->name, "vstack_vaapi"))
sctx->mode = STACK_VAAPI_V;
else {
int is_grid;
av_assert0(strcmp(avctx->filter->name, "xstack_vaapi") == 0);
sctx->mode = STACK_VAAPI_X;
is_grid = sctx->nb_grid_rows && sctx->nb_grid_columns;
if (sctx->layout && is_grid) {
av_log(avctx, AV_LOG_ERROR, "Both layout and grid were specified. Only one is allowed.\n");
return AVERROR(EINVAL);
}
if (!sctx->layout && !is_grid) {
if (sctx->nb_inputs == 2) {
sctx->nb_grid_rows = 1;
sctx->nb_grid_columns = 2;
is_grid = 1;
} else {
av_log(avctx, AV_LOG_ERROR, "No layout or grid specified.\n");
return AVERROR(EINVAL);
}
}
if (is_grid)
sctx->nb_inputs = sctx->nb_grid_rows * sctx->nb_grid_columns;
if (strcmp(sctx->fillcolor_str, "none") &&
av_parse_color(sctx->fillcolor, sctx->fillcolor_str, -1, avctx) >= 0) {
sctx->fillcolor_enable = 1;
} else {
sctx->fillcolor_enable = 0;
}
}
for (int i = 0; i < sctx->nb_inputs; i++) {
AVFilterPad pad = { 0 };
pad.type = AVMEDIA_TYPE_VIDEO;
pad.name = av_asprintf("input%d", i);
if (!pad.name)
return AVERROR(ENOMEM);
if ((ret = ff_append_inpad_free_name(avctx, &pad)) < 0)
return ret;
}
/* stack region */
sctx->rects = av_calloc(sctx->nb_inputs, sizeof(*sctx->rects));
if (!sctx->rects)
return AVERROR(ENOMEM);
ff_vaapi_vpp_ctx_init(avctx);
vppctx->output_format = AV_PIX_FMT_NONE;
return 0;
}
static av_cold void vaapi_stack_uninit(AVFilterContext *avctx)
{
StackVAAPIContext *sctx = avctx->priv;
ff_framesync_uninit(&sctx->fs);
av_freep(&sctx->rects);
}
static int vaapi_stack_activate(AVFilterContext *avctx)
{
StackVAAPIContext *sctx = avctx->priv;
return ff_framesync_activate(&sctx->fs);
}
static int vaapi_stack_query_formats(AVFilterContext *avctx)
{
static const enum AVPixelFormat pixel_formats[] = {
AV_PIX_FMT_VAAPI,
AV_PIX_FMT_NONE,
};
return ff_set_common_formats_from_list(avctx, pixel_formats);
}
static const AVFilterPad vaapi_stack_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
};
#define STACK_COMMON_OPTS \
{ "inputs", "Set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, { .i64 = 2 }, 2, UINT16_MAX, .flags = FLAGS }, \
{ "shortest", "Force termination when the shortest input terminates", OFFSET(shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
#if CONFIG_HSTACK_VAAPI_FILTER
static const AVOption hstack_vaapi_options[] = {
STACK_COMMON_OPTS
{ "height", "Set output height (0 to use the height of input 0)", OFFSET(tile_height), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UINT16_MAX, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(hstack_vaapi);
const AVFilter ff_vf_hstack_vaapi = {
.name = "hstack_vaapi",
.description = NULL_IF_CONFIG_SMALL("VA-API hstack."),
.priv_size = sizeof(StackVAAPIContext),
.priv_class = &hstack_vaapi_class,
.init = vaapi_stack_init,
.uninit = vaapi_stack_uninit,
.activate = vaapi_stack_activate,
FILTER_QUERY_FUNC(vaapi_stack_query_formats),
FILTER_OUTPUTS(vaapi_stack_outputs),
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
};
#endif
#if CONFIG_VSTACK_VAAPI_FILTER
static const AVOption vstack_vaapi_options[] = {
STACK_COMMON_OPTS
{ "width", "Set output width (0 to use the width of input 0)", OFFSET(tile_width), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UINT16_MAX, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(vstack_vaapi);
const AVFilter ff_vf_vstack_vaapi = {
.name = "vstack_vaapi",
.description = NULL_IF_CONFIG_SMALL("VA-API vstack."),
.priv_size = sizeof(StackVAAPIContext),
.priv_class = &vstack_vaapi_class,
.init = vaapi_stack_init,
.uninit = vaapi_stack_uninit,
.activate = vaapi_stack_activate,
FILTER_QUERY_FUNC(vaapi_stack_query_formats),
FILTER_OUTPUTS(vaapi_stack_outputs),
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
};
#endif
#if CONFIG_XSTACK_VAAPI_FILTER
static const AVOption xstack_vaapi_options[] = {
STACK_COMMON_OPTS
{ "layout", "Set custom layout", OFFSET(layout), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, .flags = FLAGS },
{ "grid", "set fixed size grid layout", OFFSET(nb_grid_columns), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, .flags = FLAGS },
{ "grid_tile_size", "set tile size in grid layout", OFFSET(tile_width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, .flags = FLAGS },
{ "fill", "Set the color for unused pixels", OFFSET(fillcolor_str), AV_OPT_TYPE_STRING, {.str = "none"}, .flags = FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(xstack_vaapi);
const AVFilter ff_vf_xstack_vaapi = {
.name = "xstack_vaapi",
.description = NULL_IF_CONFIG_SMALL("VA-API xstack."),
.priv_size = sizeof(StackVAAPIContext),
.priv_class = &xstack_vaapi_class,
.init = vaapi_stack_init,
.uninit = vaapi_stack_uninit,
.activate = vaapi_stack_activate,
FILTER_OUTPUTS(vaapi_stack_outputs),
FILTER_QUERY_FUNC(vaapi_stack_query_formats),
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
};
#endif