> -----Original Message-----
> From: Zhou, Zachary
> Sent: Thursday, January 17, 2019 10:35 AM
> To: Guo, Yejun <yejun....@intel.com>; FFmpeg development discussions
> and patches <ffmpeg-devel@ffmpeg.org>
> Subject: RE: [FFmpeg-devel] [PATCH V9] libavfilter: add transpose_vaapi
> filter
>
>
>
> > -----Original Message-----
> > From: Guo, Yejun
> > Sent: Thursday, January 17, 2019 9:29 AM
> > To: FFmpeg development discussions and patches <ffmpeg-
> de...@ffmpeg.org>
> > Cc: Zhou, Zachary <zachary.z...@intel.com>
> > Subject: RE: [FFmpeg-devel] [PATCH V9] libavfilter: add transpose_vaapi
> filter
> >
> >
> >
> > > -----Original Message-----
> > > From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On
> Behalf
> > > Of Zachary Zhou
> > > Sent: Wednesday, January 16, 2019 3:05 PM
> > > To: ffmpeg-devel@ffmpeg.org
> > > Cc: Zhou, Zachary <zachary.z...@intel.com>
> > > Subject: [FFmpeg-devel] [PATCH V9] libavfilter: add transpose_vaapi
> > > filter
> > >
> > > Swap width and height when do clock/cclock rotation Add
> > > reversal/hflip/vflip options
> > >
> > > ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
> > > -hwaccel_output_format vaapi -i input.264 -vf
> "transpose_vaapi=clock_flip"
> > > -c:v h264_vaapi output.h264
> > >
> > > Signed-off-by: Zachary Zhou <zachary.z...@intel.com>
> > > ---
> > > configure | 2 +
> > > libavfilter/Makefile | 1 +
> > > libavfilter/allfilters.c | 1 +
> > > libavfilter/transpose.h | 3 +
> > > libavfilter/vf_transpose_vaapi.c | 334
> > > +++++++++++++++++++++++++++++++
> > > 5 files changed, 341 insertions(+)
> > > create mode 100644 libavfilter/vf_transpose_vaapi.c
> > >
> > > diff --git a/configure b/configure
> > > index 2205751402..bf0e435b53 100755
> > > --- a/configure
> > > +++ b/configure
> > > @@ -3482,6 +3482,7 @@ tinterlace_pad_test_deps="tinterlace_filter"
> > > tonemap_filter_deps="const_nan"
> > > tonemap_opencl_filter_deps="opencl const_nan"
> > > transpose_opencl_filter_deps="opencl"
> > > +transpose_vaapi_filter_deps="vaapi
> VAProcPipelineCaps_rotation_flags"
> > > unsharp_opencl_filter_deps="opencl"
> > > uspp_filter_deps="gpl avcodec"
> > > vaguedenoiser_filter_deps="gpl"
> > > @@ -5985,6 +5986,7 @@ check_type "d3d9.h dxva2api.h"
> > > DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
> > >
> > > check_type "va/va.h va/va_dec_hevc.h"
> "VAPictureParameterBufferHEVC"
> > > check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
> > > +check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps"
> > > +rotation_flags
> > > check_type "va/va.h va/va_enc_hevc.h"
> > > "VAEncPictureParameterBufferHEVC"
> > > check_type "va/va.h va/va_enc_jpeg.h"
> > > "VAEncPictureParameterBufferJPEG"
> > > check_type "va/va.h va/va_enc_vp8.h"
> > > "VAEncPictureParameterBufferVP8"
> > > diff --git a/libavfilter/Makefile b/libavfilter/Makefile index
> > > 6e2658186d..4246d3480f 100644
> > > --- a/libavfilter/Makefile
> > > +++ b/libavfilter/Makefile
> > > @@ -394,6 +394,7 @@ OBJS-$(CONFIG_TPAD_FILTER) +=
> > vf_tpad.o
> > > OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o
> > > OBJS-$(CONFIG_TRANSPOSE_NPP_FILTER) += vf_transpose_npp.o
> > > cuda_check.o
> > > OBJS-$(CONFIG_TRANSPOSE_OPENCL_FILTER) +=
> > > vf_transpose_opencl.o opencl.o opencl/transpose.o
> > > +OBJS-$(CONFIG_TRANSPOSE_VAAPI_FILTER) +=
> vf_transpose_vaapi.o
> > > vaapi_vpp.o
> > > OBJS-$(CONFIG_TRIM_FILTER) += trim.o
> > > OBJS-$(CONFIG_UNPREMULTIPLY_FILTER) += vf_premultiply.o
> > > framesync.o
> > > OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o
> > > diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index
> > > a600069500..0b82ff7ced 100644
> > > --- a/libavfilter/allfilters.c
> > > +++ b/libavfilter/allfilters.c
> > > @@ -373,6 +373,7 @@ extern AVFilter ff_vf_tpad; extern AVFilter
> > > ff_vf_transpose; extern AVFilter ff_vf_transpose_npp; extern
> > > AVFilter ff_vf_transpose_opencl;
> > > +extern AVFilter ff_vf_transpose_vaapi;
> > > extern AVFilter ff_vf_trim;
> > > extern AVFilter ff_vf_unpremultiply;
> > > extern AVFilter ff_vf_unsharp;
> > > diff --git a/libavfilter/transpose.h b/libavfilter/transpose.h index
> > > d4bb4da1ae..aa262b9487 100644
> > > --- a/libavfilter/transpose.h
> > > +++ b/libavfilter/transpose.h
> > > @@ -29,6 +29,9 @@ enum TransposeDir {
> > > TRANSPOSE_CLOCK,
> > > TRANSPOSE_CCLOCK,
> > > TRANSPOSE_CLOCK_FLIP,
> > > + TRANSPOSE_REVERSAL, // rotate by half-turn
> > > + TRANSPOSE_HFLIP,
> > > + TRANSPOSE_VFLIP,
> > > };
> > >
> > > #endif
> > > diff --git a/libavfilter/vf_transpose_vaapi.c
> > > b/libavfilter/vf_transpose_vaapi.c
> > > new file mode 100644
> > > index 0000000000..25641b626d
> > > --- /dev/null
> > > +++ b/libavfilter/vf_transpose_vaapi.c
> > > @@ -0,0 +1,334 @@
> > > +/*
> > > + * 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 "formats.h"
> > > +#include "internal.h"
> > > +#include "transpose.h"
> > > +#include "vaapi_vpp.h"
> > > +
> > > +typedef struct TransposeVAAPIContext {
> > > + VAAPIVPPContext vpp_ctx; // must be the first field
> > > + int passthrough; // PassthroughType, landscape passthrough
> mode
> > > enabled
> > > + int dir; // TransposeDir
> > > +
> > > + int rotation_state;
> > > + int mirror_state;
> > > +} TransposeVAAPIContext;
> > > +
> > > +static int transpose_vaapi_build_filter_params(AVFilterContext
> > > +*avctx) {
> > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > + TransposeVAAPIContext *ctx = avctx->priv;
> > > + VAStatus vas;
> > > + int support_flag;
> > > + VAProcPipelineCaps pipeline_caps;
> > > +
> > > + memset(&pipeline_caps, 0, sizeof(pipeline_caps));
> > > + vas = vaQueryVideoProcPipelineCaps(vpp_ctx->hwctx->display,
> > > + vpp_ctx->va_context,
> > > + NULL, 0,
> > > + &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);
> > > + }
> > > +
> > > + if (!pipeline_caps.rotation_flags) {
> > > + av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support
> > > transpose\n");
> > > + return AVERROR(EINVAL);
> > > + }
> > > +
> > > + switch (ctx->dir) {
> > > + case TRANSPOSE_CCLOCK_FLIP:
> > > + ctx->rotation_state = VA_ROTATION_270;
> > > + ctx->mirror_state = VA_MIRROR_VERTICAL;
> > > + break;
> > > + case TRANSPOSE_CLOCK:
> > > + ctx->rotation_state = VA_ROTATION_90;
> > > + ctx->mirror_state = VA_MIRROR_NONE;
> > > + break;
> > > + case TRANSPOSE_CCLOCK:
> > > + ctx->rotation_state = VA_ROTATION_270;
> > > + ctx->mirror_state = VA_MIRROR_NONE;
> > > + break;
> > > + case TRANSPOSE_CLOCK_FLIP:
> > > + ctx->rotation_state = VA_ROTATION_90;
> > > + ctx->mirror_state = VA_MIRROR_VERTICAL;
> > > + break;
> > > + case TRANSPOSE_REVERSAL:
> > > + ctx->rotation_state = VA_ROTATION_180;
> > > + ctx->mirror_state = VA_MIRROR_NONE;
> > > + break;
> > > + case TRANSPOSE_HFLIP:
> > > + ctx->rotation_state = VA_ROTATION_NONE;
> > > + ctx->mirror_state = VA_MIRROR_HORIZONTAL;
> > > + break;
> > > + case TRANSPOSE_VFLIP:
> > > + ctx->rotation_state = VA_ROTATION_NONE;
> > > + ctx->mirror_state = VA_MIRROR_VERTICAL;
> > > + break;
> > > + default:
> > > + av_log(avctx, AV_LOG_ERROR, "Failed to set direction to
> > > + %d\n", ctx-
> > > >dir);
> > > + return AVERROR(EINVAL);
> > > + }
> > > +
> > > + if (VA_ROTATION_NONE != ctx->rotation_state) {
> > > + support_flag = pipeline_caps.rotation_flags & (1 << ctx-
> > > >rotation_state);
> > > + if (!support_flag) {
> > > + av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support
> > > rotation %d\n",
> > > + ctx->rotation_state);
> > > + return AVERROR(EINVAL);
> > > + }
> > > + }
> > > +
> > > + if (VA_MIRROR_NONE != ctx->mirror_state) {
> > > + support_flag = pipeline_caps.mirror_flags & ctx->mirror_state;
> > > + if (!support_flag) {
> > > + av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support
> > > mirror %d\n",
> > > + ctx->mirror_state);
> > > + return AVERROR(EINVAL);
> > > + }
> > > + }
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static int transpose_vaapi_filter_frame(AVFilterLink *inlink, AVFrame
> > > *input_frame)
> > > +{
> > > + AVFilterContext *avctx = inlink->dst;
> > > + AVFilterLink *outlink = avctx->outputs[0];
> > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > + TransposeVAAPIContext *ctx = avctx->priv;
> > > + AVFrame *output_frame = NULL;
> > > + VASurfaceID input_surface, output_surface;
> > > + VARectangle input_region, output_region;
> > > +
> > > + VAProcPipelineParameterBuffer params;
> > > + int err;
> > > +
> > > + if (ctx->passthrough)
> > > + return ff_filter_frame(outlink, input_frame);
> > > +
> > > + 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)
> > > + return AVERROR(EINVAL);
> > > +
> > > + input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
> > > + av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for transpose 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 transpose vpp
> > > output.\n",
> > > + output_surface);
> > > + memset(¶ms, 0, sizeof(params));
> > > + input_region = (VARectangle) {
> > > + .x = 0,
> > > + .y = 0,
> > > + .width = input_frame->width,
> > > + .height = input_frame->height,
> > > + };
> > > +
> > > + output_region = (VARectangle) {
> > > + .x = 0,
> > > + .y = 0,
> > > + .width = output_frame->width,
> > > + .height = output_frame->height,
> > > + };
> > > +
> > > + switch (ctx->rotation_state) {
> > > + case VA_ROTATION_NONE:
> > > + case VA_ROTATION_90:
> > > + case VA_ROTATION_180:
> > > + case VA_ROTATION_270:
> > > + params.rotation_state = ctx->rotation_state;
> > > + break;
> > > + default:
> > > + av_assert0(0);
> >
> > maybe better to add a description to explain why assert(0), for example,
> > av_assert0(!"should not read here").
>
> The assignment of ctx->rotation_state happens in function
> transpose_vaapi_build_filter_params.
> and the assignment make sure ctx->rotation_state has the values defined in
> VAAPI.
> how about remove switch statement. and use following directly ?
>
> params.rotation_state = ctx->rotation_state;
imo, it's better.
>
>
> >
> > > + }
> > > +
> > > + switch (ctx->mirror_state) {
> > > + case VA_MIRROR_HORIZONTAL:
> > > + case VA_MIRROR_VERTICAL:
> > > + case VA_MIRROR_NONE:
> > > + params.mirror_state = ctx->mirror_state;
> > > + break;
> > > + default:
> > > + av_assert0(0);
> >
> > same as above.
>
> The assignment of ctx-> mirror_state happens in function
> transpose_vaapi_build_filter_params.
> and the assignment make sure ctx-> mirror_state has the values defined in
> VAAPI.
> how about remove switch statement. and use following directly ?
>
> params.mirror_state = ctx->mirror_state;
same as above
>
>
> >
> > > + }
> > > +
> > > + params.filters = &vpp_ctx->filter_buffers[0];
> > > + params.num_filters = vpp_ctx->nb_filter_buffers;
> > > +
> > > + params.surface = input_surface;
> > > + params.surface_region = &input_region;
> > > + params.surface_color_standard =
> > > + ff_vaapi_vpp_colour_standard(input_frame->colorspace);
> > > +
> > > + params.output_region = &output_region;
> > > + params.output_background_color =
> VAAPI_VPP_BACKGROUND_BLACK;
> > > + params.output_color_standard = params.surface_color_standard;
> > > +
> > > + err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_surface);
> > > + if (err < 0)
> > > + goto fail;
> > > +
> > > + err = av_frame_copy_props(output_frame, input_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 transpose_vaapi_init(AVFilterContext *avctx) {
> > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > +
> > > + ff_vaapi_vpp_ctx_init(avctx);
> > > + vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;
> > > + vpp_ctx->build_filter_params = transpose_vaapi_build_filter_params;
> > > + vpp_ctx->output_format = AV_PIX_FMT_NONE;
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static int transpose_vaapi_vpp_config_output(AVFilterLink *outlink) {
> > > + AVFilterContext *avctx = outlink->src;
> > > + VAAPIVPPContext *vpp_ctx = avctx->priv;
> > > + TransposeVAAPIContext *ctx = avctx->priv;
> > > + AVFilterLink *inlink = avctx->inputs[0];
> > > +
> > > + if ((inlink->w >= inlink->h && ctx->passthrough ==
> > > TRANSPOSE_PT_TYPE_LANDSCAPE) ||
> > > + (inlink->w <= inlink->h && ctx->passthrough ==
> > > TRANSPOSE_PT_TYPE_PORTRAIT)) {
> > > + av_log(avctx, AV_LOG_VERBOSE,
> > > + "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
> > > + inlink->w, inlink->h, inlink->w, inlink->h);
> > > + return 0;
> > > + }
> > > +
> > > + ctx->passthrough = TRANSPOSE_PT_TYPE_NONE;
> > > +
> > > + switch (ctx->dir) {
> > > + case TRANSPOSE_CCLOCK_FLIP:
> > > + case TRANSPOSE_CCLOCK:
> > > + case TRANSPOSE_CLOCK:
> > > + case TRANSPOSE_CLOCK_FLIP:
> > > + vpp_ctx->output_width = avctx->inputs[0]->h;
> > > + vpp_ctx->output_height = avctx->inputs[0]->w;
> > > + av_log(avctx, AV_LOG_DEBUG, "swap width and height for
> > > + clock/cclock
> > > rotation\n");
> > > + break;
> > > + default:
> > > + break;
> > > + }
> > > +
> > > + return ff_vaapi_vpp_config_output(outlink);
> > > +}
> > > +
> > > +static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
> > > +{
> > > + TransposeVAAPIContext *ctx = inlink->dst->priv;
> > > +
> > > + return ctx->passthrough ?
> > > + ff_null_get_video_buffer(inlink, w, h) :
> > > + ff_default_get_video_buffer(inlink, w, h); }
> > > +
> > > +#define OFFSET(x) offsetof(TransposeVAAPIContext, x) #define FLAGS
> > > +(AV_OPT_FLAG_VIDEO_PARAM |
> > > AV_OPT_FLAG_FILTERING_PARAM)
> > > +static const AVOption transpose_vaapi_options[] = {
> > > + { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT,
> > > +{ .i64 =
> > > TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, "dir" },
> > > + { "cclock_flip", "rotate counter-clockwise with vertical
> > > flip", 0,
> > > AV_OPT_TYPE_CONST, { .i64 =
> > > TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
> > > + { "clock", "rotate clockwise",
> > > 0,
> > AV_OPT_TYPE_CONST,
> > > { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" },
> > > + { "cclock", "rotate counter-clockwise",
> > > 0,
> > > AV_OPT_TYPE_CONST, { .i64 =
> TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit
> > > = "dir" },
> > > + { "clock_flip", "rotate clockwise with vertical flip",
> > > 0,
> > > AV_OPT_TYPE_CONST, { .i64 =
> > > TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
> > > + { "reversal", "rotate by half-turn",
> > > 0,
> > > AV_OPT_TYPE_CONST, { .i64 =
> TRANSPOSE_REVERSAL }, .flags=FLAGS, .unit
> > > = "dir" },
> > > + { "hflip", "flip horizontally",
> > > 0,
> AV_OPT_TYPE_CONST,
> > > { .i64 = TRANSPOSE_HFLIP }, .flags=FLAGS, .unit = "dir" },
> > > + { "vflip", "flip vertically",
> > > 0, AV_OPT_TYPE_CONST,
> > > { .i64 = TRANSPOSE_VFLIP }, .flags=FLAGS, .unit = "dir" },
> > > +
> > > + { "passthrough", "do not apply transposition if the input matches
> > > + the
> > > specified geometry",
> > > + OFFSET(passthrough), AV_OPT_TYPE_INT,
> > > {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS,
> "passthrough" },
> > > + { "none", "always apply transposition", 0,
> > > AV_OPT_TYPE_CONST,
> > > {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS,
> > > "passthrough" },
> > > + { "portrait", "preserve portrait geometry", 0,
> AV_OPT_TYPE_CONST,
> > > {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS,
> > > "passthrough" },
> > > + { "landscape", "preserve landscape geometry", 0,
> > > AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE},
> INT_MIN,
> > > INT_MAX, FLAGS, "passthrough" },
> > > +
> > > + { NULL }
> > > +};
> > > +
> > > +
> > > +AVFILTER_DEFINE_CLASS(transpose_vaapi);
> > > +
> > > +static const AVFilterPad transpose_vaapi_inputs[] = {
> > > + {
> > > + .name = "default",
> > > + .type = AVMEDIA_TYPE_VIDEO,
> > > + .filter_frame = &transpose_vaapi_filter_frame,
> > > + .get_video_buffer = get_video_buffer,
> > > + .config_props = &ff_vaapi_vpp_config_input,
> > > + },
> > > + { NULL }
> > > +};
> > > +
> > > +static const AVFilterPad transpose_vaapi_outputs[] = {
> > > + {
> > > + .name = "default",
> > > + .type = AVMEDIA_TYPE_VIDEO,
> > > + .config_props = &transpose_vaapi_vpp_config_output,
> > > + },
> > > + { NULL }
> > > +};
> > > +
> > > +AVFilter ff_vf_transpose_vaapi = {
> > > + .name = "transpose_vaapi",
> > > + .description = NULL_IF_CONFIG_SMALL("VAAPI VPP for transpose"),
> > > + .priv_size = sizeof(TransposeVAAPIContext),
> > > + .init = &transpose_vaapi_init,
> > > + .uninit = &ff_vaapi_vpp_ctx_uninit,
> > > + .query_formats = &ff_vaapi_vpp_query_formats,
> > > + .inputs = transpose_vaapi_inputs,
> > > + .outputs = transpose_vaapi_outputs,
> > > + .priv_class = &transpose_vaapi_class,
> > > + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, };
> > > --
> > > 2.17.1
>
> Thank you for the comments.
> -Zach
>
> > >
> > > _______________________________________________
> > > ffmpeg-devel mailing list
> > > ffmpeg-devel@ffmpeg.org
> > > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
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