[FFmpeg-devel] [PATCH V2] libavfilter/vaapi: enable vaapi rotation feature via call Intel iHD driver

Paul B Mahol onemda at gmail.com
Fri Oct 26 18:18:11 EEST 2018


On 10/26/18, Zhou, Zachary <zachary.zhou at intel.com> wrote:
>
>
>> -----Original Message-----
>> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of
>> Rostislav Pehlivanov
>> Sent: Friday, October 26, 2018 9:02 PM
>> To: FFmpeg development discussions and patches <ffmpeg-devel at ffmpeg.org>
>> Subject: Re: [FFmpeg-devel] [PATCH V2] libavfilter/vaapi: enable vaapi
>> rotation feature via call Intel iHD driver
>>
>> On Fri, 26 Oct 2018 at 04:10, Zhou, Zachary <zachary.zhou at intel.com>
>> wrote:
>>
>> >
>> >
>> > > -----Original Message-----
>> > > From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On
>> > > Behalf Of sean darcy
>> > > Sent: Thursday, October 25, 2018 11:51 PM
>> > > To: ffmpeg-devel at ffmpeg.org
>> > > Subject: Re: [FFmpeg-devel] [PATCH V2] libavfilter/vaapi: enable
>> > > vaapi rotation feature via call Intel iHD driver
>> > >
>> > > On 10/25/18 2:52 AM, Zachary Zhou wrote:
>> > > > It supports clockwise rotation by 0/90/180/270 degrees defined in
>> > > > va/va_vpp.h, tested following command line on SKL platform
>> > > >
>> > > > dir=0 for 0   degree
>> > > > dir=1 for 90  degree
>> > > > dir=2 for 180 degree
>> > > > dir=3 for 270 degree
>> > > >
>> > > > ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
>> > > > -hwaccel_output_format vaapi -i input.264 -vf
>> > > > "rotation_vaapi=dir=1"
>> > > > -c:v h264_vaapi output.h264
>> > > >
>> > > > Signed-off-by: Zachary Zhou <zachary.zhou at intel.com>
>> > > > ---
>> > > >   configure                     |   3 +
>> > > >   libavfilter/Makefile          |   1 +
>> > > >   libavfilter/allfilters.c      |   1 +
>> > > >   libavfilter/vaapi_vpp.h       |   1 +
>> > > >   libavfilter/vf_rotate_vaapi.c | 252
>> > ++++++++++++++++++++++++++++++++++
>> > > >   5 files changed, 258 insertions(+)
>> > > >   create mode 100644 libavfilter/vf_rotate_vaapi.c
>> > > >
>> > > > diff --git a/configure b/configure index 85d5dd5962..33aced3d78
>> > > > 100755
>> > > > --- a/configure
>> > > > +++ b/configure
>> > > > @@ -6390,6 +6390,9 @@ if enabled vaapi; then
>> > > >       fi
>> > > >
>> > > >       check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0,
>> 0)"
>> > > > +    if ! check_struct "va/va.h" "struct _VAProcPipelineCaps"
>> > rotation_flags;
>> > > then
>> > > > +        disable rotation_vaapi_filter
>> > > > +    fi
>> > > >   fi
>> > > >
>> > > >   if enabled_all opencl libdrm ; then diff --git
>> > > > a/libavfilter/Makefile b/libavfilter/Makefile index
>> > > > 108a2f87d7..534650364a 100644
>> > > > --- a/libavfilter/Makefile
>> > > > +++ b/libavfilter/Makefile
>> > > > @@ -349,6 +349,7 @@ OBJS-$(CONFIG_SETRANGE_FILTER)               +=
>> > > vf_setparams.o
>> > > >   OBJS-$(CONFIG_SETSAR_FILTER)                 += vf_aspect.o
>> > > >   OBJS-$(CONFIG_SETTB_FILTER)                  += settb.o
>> > > >   OBJS-$(CONFIG_SHARPNESS_VAAPI_FILTER)        += vf_misc_vaapi.o
>> > > vaapi_vpp.o
>> > > > +OBJS-$(CONFIG_ROTATION_VAAPI_FILTER)         += vf_rotate_vaapi.o
>> > > vaapi_vpp.o
>> > > >   OBJS-$(CONFIG_SHOWINFO_FILTER)               += vf_showinfo.o
>> > > >   OBJS-$(CONFIG_SHOWPALETTE_FILTER)            += vf_showpalette.o
>> > > >   OBJS-$(CONFIG_SHUFFLEFRAMES_FILTER)          +=
>> > > > vf_shuffleframes.o
>> > > > diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
>> > > > index
>> > > > 557590850b..4b90a7f440 100644
>> > > > --- a/libavfilter/allfilters.c
>> > > > +++ b/libavfilter/allfilters.c
>> > > > @@ -333,6 +333,7 @@ extern AVFilter ff_vf_setrange;
>> > > >   extern AVFilter ff_vf_setsar;
>> > > >   extern AVFilter ff_vf_settb;
>> > > >   extern AVFilter ff_vf_sharpness_vaapi;
>> > > > +extern AVFilter ff_vf_rotation_vaapi;
>> > > >   extern AVFilter ff_vf_showinfo;
>> > > >   extern AVFilter ff_vf_showpalette;
>> > > >   extern AVFilter ff_vf_shuffleframes; diff --git
>> > > > a/libavfilter/vaapi_vpp.h b/libavfilter/vaapi_vpp.h index
>> > > > 0bc31018d4..cfe19b689f 100644
>> > > > --- a/libavfilter/vaapi_vpp.h
>> > > > +++ b/libavfilter/vaapi_vpp.h
>> > > > @@ -44,6 +44,7 @@ typedef struct VAAPIVPPContext {
>> > > >       int output_width;   // computed width
>> > > >       int output_height;  // computed height
>> > > >
>> > > > +    int rotation_state;
>> > > >       VABufferID         filter_buffers[VAProcFilterCount];
>> > > >       int                nb_filter_buffers;
>> > > >
>> > > > diff --git a/libavfilter/vf_rotate_vaapi.c
>> > > > b/libavfilter/vf_rotate_vaapi.c new file mode 100644 index
>> > > > 0000000000..34c270e9c7
>> > > > --- /dev/null
>> > > > +++ b/libavfilter/vf_rotate_vaapi.c
>> > > > @@ -0,0 +1,252 @@
>> > > > +/*
>> > > > + * 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 "vaapi_vpp.h"
>> > > > +
>> > > > +// Rotation angle values
>> > > > +enum RotationAngle {
>> > > > +    ROTATION_0   = 0,
>> > > > +    ROTATION_90  = 1,
>> > > > +    ROTATION_180 = 2,
>> > > > +    ROTATION_270 = 3,
>> > > > +
>> > > > +    ROTATION_MIN     = ROTATION_0,
>> > > > +    ROTATION_MAX     = ROTATION_270,
>> > > > +    ROTATION_DEFAULT = ROTATION_0, };
>> > > > +
>> > > > +typedef struct RotationVAAPIContext {
>> > > > +    VAAPIVPPContext vpp_ctx; // must be the first field
>> > > > +
>> > > > +    int rotation;        // enable rotation.
>> > > > +} RotationVAAPIContext;
>> > > > +
>> > > > +static int rotation_vaapi_build_filter_params(AVFilterContext
>> > > > +*avctx) {
>> > > > +    VAAPIVPPContext *vpp_ctx  = avctx->priv;
>> > > > +    RotationVAAPIContext *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
>> > > rotation\n");
>> > > > +        return AVERROR(EINVAL);
>> > > > +    }
>> > > > +
>> > > > +    switch (ctx->rotation) {
>> > > > +    case ROTATION_0:
>> > > > +        vpp_ctx->rotation_state = VA_ROTATION_NONE;
>> > > > +        break;
>> > > > +    case ROTATION_90:
>> > > > +        vpp_ctx->rotation_state = VA_ROTATION_90;
>> > > > +        break;
>> > > > +    case ROTATION_180:
>> > > > +        vpp_ctx->rotation_state = VA_ROTATION_180;
>> > > > +        break;
>> > > > +    case ROTATION_270:
>> > > > +        vpp_ctx->rotation_state = VA_ROTATION_270;
>> > > > +        break;
>> > > > +    default:
>> > > > +        av_log(avctx, AV_LOG_ERROR, "Failed to set rotation_state
>> > > > + to
>> > %d. "
>> > > > +               "Clockwise %d, %d, %d and %d are only supported\n",
>> > > > +               ctx->rotation,
>> > > > +               ROTATION_0, ROTATION_90, ROTATION_180,
>> > > > ROTATION_270);
>> > > > +        return AVERROR(EINVAL);
>> > > > +    }
>> > > > +
>> > > > +    support_flag = pipeline_caps.rotation_flags &
>> > > > +                   (1 << vpp_ctx->rotation_state);
>> > > > +    if (!support_flag) {
>> > > > +        av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support
>> > %d\n",
>> > > > +               ctx->rotation);
>> > > > +        return AVERROR(EINVAL);
>> > > > +    }
>> > > > +
>> > > > +    return 0;
>> > > > +}
>> > > > +
>> > > > +static int rotation_vaapi_filter_frame(AVFilterLink *inlink,
>> > > > +AVFrame
>> > > > +*input_frame) {
>> > > > +    AVFilterContext *avctx   = inlink->dst;
>> > > > +    AVFilterLink *outlink    = avctx->outputs[0];
>> > > > +    VAAPIVPPContext *vpp_ctx = avctx->priv;
>> > > > +    AVFrame *output_frame    = NULL;
>> > > > +    VASurfaceID input_surface, output_surface;
>> > > > +    VARectangle input_region;
>> > > > +
>> > > > +    VAProcPipelineParameterBuffer params;
>> > > > +    int err;
>> > > > +
>> > > > +    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 misc 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 misc vpp
>> > > output.\n",
>> > > > +           output_surface);
>> > > > +    memset(&params, 0, sizeof(params));
>> > > > +    input_region = (VARectangle) {
>> > > > +        .x      = 0,
>> > > > +        .y      = 0,
>> > > > +        .width  = input_frame->width,
>> > > > +        .height = input_frame->height,
>> > > > +    };
>> > > > +
>> > > > +    switch (vpp_ctx->rotation_state) {
>> > > > +    case VA_ROTATION_NONE:
>> > > > +    case VA_ROTATION_90:
>> > > > +    case VA_ROTATION_180:
>> > > > +    case VA_ROTATION_270:
>> > > > +        params.rotation_state = vpp_ctx->rotation_state;
>> > > > +        break;
>> > > > +    default:
>> > > > +        av_log(avctx, AV_LOG_ERROR, "VAAPI doesn't support %d\n",
>> > > > +               vpp_ctx->rotation_state);
>> > > > +        goto fail;
>> > > > +    }
>> > > > +
>> > > > +    if (vpp_ctx->nb_filter_buffers) {
>> > > > +        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 = NULL;
>> > > > +    params.output_background_color = 0xff000000;
>> > > > +    params.output_color_standard = params.surface_color_standard;
>> > > > +
>> > > > +    params.pipeline_flags = 0;
>> > > > +    params.filter_flags = VA_FRAME_PICTURE;
>> > > > +
>> > > > +    err = ff_vaapi_vpp_render_picture(avctx, &params,
>> > > > 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 rotation_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 =
>> > > > rotation_vaapi_build_filter_params;
>> > > > +    vpp_ctx->output_format       = AV_PIX_FMT_NONE;
>> > > > +
>> > > > +    return 0;
>> > > > +}
>> > > > +
>> > > > +#define ROFFSET(x) offsetof(RotationVAAPIContext, x) #define
>> > > > +FLAGS (AV_OPT_FLAG_VIDEO_PARAM |
>> AV_OPT_FLAG_FILTERING_PARAM)
>> > > > +static
>> > > const
>> > > > +AVOption rotation_vaapi_options[] = {
>> > > > +    { "dir", "set roation direction", ROFFSET(rotation),
>> > AV_OPT_TYPE_INT,
>> > > { .i64 = ROTATION_MIN }, ROTATION_MIN, ROTATION_MAX, FLAGS, "dir" },
>> > > > +        { "clock_0",   "rotate clockwise 0 degrees",   0,
>> > AV_OPT_TYPE_CONST,
>> > > { .i64 = ROTATION_0 },   .flags=FLAGS, .unit = "dir" },
>> > > > +        { "clock_90",  "rotate clockwise 90 degrees",  0,
>> > AV_OPT_TYPE_CONST,
>> > > { .i64 = ROTATION_90},   .flags=FLAGS, .unit = "dir" },
>> > > > +        { "clock_180", "rotate clockwise 180 degrees", 0,
>> > AV_OPT_TYPE_CONST,
>> > > { .i64 = ROTATION_180 }, .flags=FLAGS, .unit = "dir" },
>> > > > +        { "clock_270", "rotate clockwise 270 degrees", 0,
>> > AV_OPT_TYPE_CONST,
>> > > { .i64 = ROTATION_270 }, .flags=FLAGS, .unit = "dir" },
>> > > > +    { NULL },
>> > > > +};
>> > > > +
>> > > > +AVFILTER_DEFINE_CLASS(rotation_vaapi);
>> > > > +
>> > > > +static const AVFilterPad rotation_vaapi_inputs[] = {
>> > > > +    {
>> > > > +        .name         = "default",
>> > > > +        .type         = AVMEDIA_TYPE_VIDEO,
>> > > > +        .filter_frame = &rotation_vaapi_filter_frame,
>> > > > +        .config_props = &ff_vaapi_vpp_config_input,
>> > > > +    },
>> > > > +    { NULL }
>> > > > +};
>> > > > +
>> > > > +static const AVFilterPad rotation_vaapi_outputs[] = {
>> > > > +    {
>> > > > +        .name = "default",
>> > > > +        .type = AVMEDIA_TYPE_VIDEO,
>> > > > +        .config_props = &ff_vaapi_vpp_config_output,
>> > > > +    },
>> > > > +    { NULL }
>> > > > +};
>> > > > +
>> > > > +AVFilter ff_vf_rotation_vaapi = {
>> > > > +    .name          = "rotation_vaapi",
>> > > > +    .description   = NULL_IF_CONFIG_SMALL("VAAPI VPP for
>> > > > rotation"),
>> > > > +    .priv_size     = sizeof(RotationVAAPIContext),
>> > > > +    .init          = &rotation_vaapi_init,
>> > > > +    .uninit        = &ff_vaapi_vpp_ctx_uninit,
>> > > > +    .query_formats = &ff_vaapi_vpp_query_formats,
>> > > > +    .inputs        = rotation_vaapi_inputs,
>> > > > +    .outputs       = rotation_vaapi_outputs,
>> > > > +    .priv_class    = &rotation_vaapi_class,
>> > > > +    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, };
>> > > >
>> > > How about:
>> > >
>> > > deg=0 for 0   degree
>> > > deg=90 for 90  degree
>> > > deg=180 for 180 degree
>> > > deg=270 for 270 degree
>> > >
>> > > ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
>> > >   -hwaccel_output_format vaapi -i input.264 -vf
>> > > "rotation_vaapi=deg=90"
>> > >   -c:v h264_vaapi output.h264
>> > >
>> > > The rotation is in degrees , not direction. And using the actual
>> > > degrees
>> > instead
>> > > of magic numbers makes it more obvious for the user.
>> >
>> >
>> > My first version of the
>> > patch(https://patchwork.ffmpeg.org/patch/10754/)
>> > just like this.
>> >
>> > ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
>> > -hwaccel_output_format vaapi -i input.264 -vf "rotation_vaapi=angle=90"
>> > -c:v h264_vaapi output.h264
>> >
>> > And I got comments to add sub-options. the sub-options are clock_0,
>> > clock_90, clock_180, clock_270, the command line likes this.
>> >
>> > ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
>> > -hwaccel_output_format vaapi -i input.264 -vf "rotation_vaapi=
>> > clock_270"
>> > -c:v h264_vaapi output.h264
>> >
>> >
>> > >
>> > > _______________________________________________
>> > > ffmpeg-devel mailing list
>> > > ffmpeg-devel at ffmpeg.org
>> > > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> > _______________________________________________
>> > ffmpeg-devel mailing list
>> > ffmpeg-devel at ffmpeg.org
>> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>
>>
>> Please, call it transpose_vaapi, and make it accept the same options as
>> the
>> transpose filter we have.
>> transpose != rotation.
>
> Actually, I want to change back to "rotation_vaapi=angle=90", I agree  "sean
> darcy <seandarcy2 at gmail.com>" comments, and I think this filter is different
> with transpose.
>
> 1. This filter no vflip/hflip support, but transpose has vflip/hflip, in
> VAAPI another feature Mirroring, hflip/vflip are supported by using
> VAProcPipelineParameterBuffer::mirror_state. I was planning enable VAAPI
> mirroring in another patch.
> 2. Currently VAAPI rotation only support 0/90/180/270 degrees, not sure
> VAAPI will add more degrees in future, so I want to keep the name
> rotation_vaapi to align VAAPI.
> 3. I don't want to put VAAPI rotation and VAAPI mirroring together to enable
> a similar but not same with transpose currently, Because the same options
> and the different functions may call people confuse.
>
> My first version patch has already included  the discussion regarding the
> filter name and options. https://patchwork.ffmpeg.org/patch/10754/
>

Why we need yet another rotation filter that does not do rotation but
does rotation in 4 fixed ways?
Seriously? This needs some serious quality control.


More information about the ffmpeg-devel mailing list