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/*
* 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 Intel Quick Sync Video VPP
*/
#include "config_components.h"
#include "libavutil/mem.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 "internal.h"
#include "filters.h"
#include "formats.h"
#include "video.h"
#include "framesync.h"
#include "qsvvpp.h"
#define HSTACK_NAME "hstack_qsv"
#define VSTACK_NAME "vstack_qsv"
#define XSTACK_NAME "xstack_qsv"
#define HWContext QSVVPPContext
#define StackHWContext StackQSVContext
#include "stack_internal.h"
typedef struct StackQSVContext {
StackBaseContext base;
QSVVPPParam qsv_param;
mfxExtVPPComposite comp_conf;
} StackQSVContext;
static void rgb2yuv(float r, float g, float b, int *y, int *u, int *v, int depth)
{
*y = ((0.21260*219.0/255.0) * r + (0.71520*219.0/255.0) * g +
(0.07220*219.0/255.0) * b) * ((1 << depth) - 1);
*u = (-(0.11457*224.0/255.0) * r - (0.38543*224.0/255.0) * g +
(0.50000*224.0/255.0) * b + 0.5) * ((1 << depth) - 1);
*v = ((0.50000*224.0/255.0) * r - (0.45415*224.0/255.0) * g -
(0.04585*224.0/255.0) * b + 0.5) * ((1 << depth) - 1);
}
static int process_frame(FFFrameSync *fs)
{
AVFilterContext *ctx = fs->parent;
QSVVPPContext *qsv = fs->opaque;
AVFrame *frame = NULL, *propref = NULL;
int ret = 0;
for (int i = 0; i < ctx->nb_inputs; i++) {
ret = ff_framesync_get_frame(fs, i, &frame, 0);
if (ret == 0) {
if (i == 0)
propref = frame;
ret = ff_qsvvpp_filter_frame(qsv, ctx->inputs[i], frame, propref);
}
if (ret < 0 && ret != AVERROR(EAGAIN))
break;
}
if (ret == 0 && qsv->got_frame == 0) {
for (int i = 0; i < ctx->nb_inputs; i++)
FF_FILTER_FORWARD_WANTED(ctx->outputs[0], ctx->inputs[i]);
ret = FFERROR_NOT_READY;
}
return ret;
}
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
StackQSVContext *sctx = ctx->priv;
AVFilterLink *inlink0 = ctx->inputs[0];
FilterLink *inl0 = ff_filter_link(inlink0);
enum AVPixelFormat in_format;
int depth = 8, ret;
mfxVPPCompInputStream *is = sctx->comp_conf.InputStream;
if (inlink0->format == AV_PIX_FMT_QSV) {
if (!inl0->hw_frames_ctx || !inl0->hw_frames_ctx->data)
return AVERROR(EINVAL);
in_format = ((AVHWFramesContext*)inl0->hw_frames_ctx->data)->sw_format;
} else
in_format = inlink0->format;
sctx->qsv_param.out_sw_format = in_format;
for (int i = 1; i < sctx->base.nb_inputs; i++) {
AVFilterLink *inlink = ctx->inputs[i];
FilterLink *inl = ff_filter_link(inlink);
if (inlink0->format == AV_PIX_FMT_QSV) {
AVHWFramesContext *hwfc0 = (AVHWFramesContext *)inl0->hw_frames_ctx->data;
AVHWFramesContext *hwfc = (AVHWFramesContext *)inl->hw_frames_ctx->data;
if (inlink0->format != inlink->format) {
av_log(ctx, AV_LOG_ERROR, "Mixing hardware and software pixel formats is not supported.\n");
return AVERROR(EINVAL);
} else if (hwfc0->device_ctx != hwfc->device_ctx) {
av_log(ctx, AV_LOG_ERROR, "Inputs with different underlying QSV devices are forbidden.\n");
return AVERROR(EINVAL);
}
}
}
if (in_format == AV_PIX_FMT_P010)
depth = 10;
if (sctx->base.fillcolor_enable) {
int Y, U, V;
rgb2yuv(sctx->base.fillcolor[0] / 255.0, sctx->base.fillcolor[1] / 255.0,
sctx->base.fillcolor[2] / 255.0, &Y, &U, &V, depth);
sctx->comp_conf.Y = Y;
sctx->comp_conf.U = U;
sctx->comp_conf.V = V;
}
ret = config_comm_output(outlink);
if (ret < 0)
return ret;
for (int i = 0; i < sctx->base.nb_inputs; i++) {
is[i].DstX = sctx->base.regions[i].x;
is[i].DstY = sctx->base.regions[i].y;
is[i].DstW = sctx->base.regions[i].width;
is[i].DstH = sctx->base.regions[i].height;
is[i].GlobalAlpha = 255;
is[i].GlobalAlphaEnable = 0;
is[i].PixelAlphaEnable = 0;
}
return ff_qsvvpp_init(ctx, &sctx->qsv_param);
}
/*
* Callback for qsvvpp
* @Note: qsvvpp composition does not generate PTS for result frame.
* so we assign the PTS from framesync to the output frame.
*/
static int filter_callback(AVFilterLink *outlink, AVFrame *frame)
{
StackQSVContext *sctx = outlink->src->priv;
frame->pts = av_rescale_q(sctx->base.fs.pts,
sctx->base.fs.time_base, outlink->time_base);
return ff_filter_frame(outlink, frame);
}
static int qsv_stack_init(AVFilterContext *ctx)
{
StackQSVContext *sctx = ctx->priv;
int ret;
ret = stack_init(ctx);
if (ret)
return ret;
/* fill composite config */
sctx->comp_conf.Header.BufferId = MFX_EXTBUFF_VPP_COMPOSITE;
sctx->comp_conf.Header.BufferSz = sizeof(sctx->comp_conf);
sctx->comp_conf.NumInputStream = sctx->base.nb_inputs;
sctx->comp_conf.InputStream = av_calloc(sctx->base.nb_inputs,
sizeof(*sctx->comp_conf.InputStream));
if (!sctx->comp_conf.InputStream)
return AVERROR(ENOMEM);
/* initialize QSVVPP params */
sctx->qsv_param.filter_frame = filter_callback;
sctx->qsv_param.ext_buf = av_mallocz(sizeof(*sctx->qsv_param.ext_buf));
if (!sctx->qsv_param.ext_buf)
return AVERROR(ENOMEM);
sctx->qsv_param.ext_buf[0] = (mfxExtBuffer *)&sctx->comp_conf;
sctx->qsv_param.num_ext_buf = 1;
sctx->qsv_param.num_crop = 0;
return 0;
}
static av_cold void qsv_stack_uninit(AVFilterContext *ctx)
{
StackQSVContext *sctx = ctx->priv;
stack_uninit(ctx);
ff_qsvvpp_close(ctx);
av_freep(&sctx->comp_conf.InputStream);
av_freep(&sctx->qsv_param.ext_buf);
}
static int qsv_stack_query_formats(AVFilterContext *ctx)
{
static const enum AVPixelFormat pixel_formats[] = {
AV_PIX_FMT_NV12,
AV_PIX_FMT_P010,
AV_PIX_FMT_QSV,
AV_PIX_FMT_NONE,
};
return ff_set_common_formats_from_list(ctx, pixel_formats);
}
#include "stack_internal.c"
#if CONFIG_HSTACK_QSV_FILTER
DEFINE_HSTACK_OPTIONS(qsv);
DEFINE_STACK_FILTER(hstack, qsv, "Quick Sync Video", AVFILTER_FLAG_HWDEVICE);
#endif
#if CONFIG_VSTACK_QSV_FILTER
DEFINE_VSTACK_OPTIONS(qsv);
DEFINE_STACK_FILTER(vstack, qsv, "Quick Sync Video", AVFILTER_FLAG_HWDEVICE);
#endif
#if CONFIG_XSTACK_QSV_FILTER
DEFINE_XSTACK_OPTIONS(qsv);
DEFINE_STACK_FILTER(xstack, qsv, "Quick Sync Video", AVFILTER_FLAG_HWDEVICE);
#endif
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