2017-08-18 01:40:47 +00:00
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/*
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2017-11-11 17:46:24 +00:00
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* This file is part of FFmpeg.
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2017-08-18 01:40:47 +00:00
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*
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2017-11-11 17:46:24 +00:00
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* FFmpeg is free software; you can redistribute it and/or
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2017-08-18 01:40:47 +00:00
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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2017-11-11 17:46:24 +00:00
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* FFmpeg is distributed in the hope that it will be useful,
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2017-08-18 01:40:47 +00:00
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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2017-11-11 17:46:24 +00:00
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* License along with FFmpeg; if not, write to the Free Software
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2017-08-18 01:40:47 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* A hardware accelerated overlay filter based on Intel Quick Sync Video VPP
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*/
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#include "libavutil/opt.h"
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#include "libavutil/common.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/eval.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/avstring.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/mathematics.h"
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#include "internal.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "video.h"
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2018-04-03 01:50:19 +00:00
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#include "framesync.h"
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2017-08-18 01:40:47 +00:00
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#include "qsvvpp.h"
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#define MAIN 0
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#define OVERLAY 1
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#define OFFSET(x) offsetof(QSVOverlayContext, x)
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2017-11-12 17:07:45 +00:00
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#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
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2017-08-18 01:40:47 +00:00
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enum var_name {
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VAR_MAIN_iW, VAR_MW,
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VAR_MAIN_iH, VAR_MH,
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VAR_OVERLAY_iW,
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VAR_OVERLAY_iH,
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VAR_OVERLAY_X, VAR_OX,
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VAR_OVERLAY_Y, VAR_OY,
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VAR_OVERLAY_W, VAR_OW,
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VAR_OVERLAY_H, VAR_OH,
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VAR_VARS_NB
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};
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typedef struct QSVOverlayContext {
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const AVClass *class;
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2018-04-03 01:50:19 +00:00
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FFFrameSync fs;
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2017-08-18 01:40:47 +00:00
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QSVVPPContext *qsv;
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QSVVPPParam qsv_param;
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mfxExtVPPComposite comp_conf;
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double var_values[VAR_VARS_NB];
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char *overlay_ox, *overlay_oy, *overlay_ow, *overlay_oh;
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uint16_t overlay_alpha, overlay_pixel_alpha;
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} QSVOverlayContext;
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static const char *const var_names[] = {
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"main_w", "W", /* input width of the main layer */
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"main_h", "H", /* input height of the main layer */
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"overlay_iw", /* input width of the overlay layer */
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"overlay_ih", /* input height of the overlay layer */
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"overlay_x", "x", /* x position of the overlay layer inside of main */
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"overlay_y", "y", /* y position of the overlay layer inside of main */
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"overlay_w", "w", /* output width of overlay layer */
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"overlay_h", "h", /* output height of overlay layer */
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NULL
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};
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2018-04-03 01:50:19 +00:00
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static const AVOption overlay_qsv_options[] = {
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2017-08-18 01:40:47 +00:00
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{ "x", "Overlay x position", OFFSET(overlay_ox), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
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{ "y", "Overlay y position", OFFSET(overlay_oy), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
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{ "w", "Overlay width", OFFSET(overlay_ow), AV_OPT_TYPE_STRING, { .str="overlay_iw"}, 0, 255, .flags = FLAGS},
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{ "h", "Overlay height", OFFSET(overlay_oh), AV_OPT_TYPE_STRING, { .str="overlay_ih*w/overlay_iw"}, 0, 255, .flags = FLAGS},
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{ "alpha", "Overlay global alpha", OFFSET(overlay_alpha), AV_OPT_TYPE_INT, { .i64 = 255}, 0, 255, .flags = FLAGS},
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{ "eof_action", "Action to take when encountering EOF from secondary input ",
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2018-04-03 01:50:19 +00:00
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OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT },
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EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, "eof_action" },
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{ "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, "eof_action" },
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{ "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, "eof_action" },
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{ "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, "eof_action" },
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{ "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
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{ "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
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2017-08-18 01:40:47 +00:00
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{ NULL }
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};
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2018-04-03 01:50:19 +00:00
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FRAMESYNC_DEFINE_CLASS(overlay_qsv, QSVOverlayContext, fs);
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2017-08-18 01:40:47 +00:00
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static int eval_expr(AVFilterContext *ctx)
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{
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QSVOverlayContext *vpp = ctx->priv;
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double *var_values = vpp->var_values;
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int ret = 0;
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AVExpr *ox_expr = NULL, *oy_expr = NULL;
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AVExpr *ow_expr = NULL, *oh_expr = NULL;
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#define PASS_EXPR(e, s) {\
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ret = av_expr_parse(&e, s, var_names, NULL, NULL, NULL, NULL, 0, ctx); \
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if (ret < 0) {\
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av_log(ctx, AV_LOG_ERROR, "Error when passing '%s'.\n", s);\
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goto release;\
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}\
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}
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PASS_EXPR(ox_expr, vpp->overlay_ox);
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PASS_EXPR(oy_expr, vpp->overlay_oy);
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PASS_EXPR(ow_expr, vpp->overlay_ow);
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PASS_EXPR(oh_expr, vpp->overlay_oh);
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#undef PASS_EXPR
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var_values[VAR_OVERLAY_W] =
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var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
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var_values[VAR_OVERLAY_H] =
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var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
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/* calc again in case ow is relative to oh */
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var_values[VAR_OVERLAY_W] =
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var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
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var_values[VAR_OVERLAY_X] =
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var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
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var_values[VAR_OVERLAY_Y] =
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var_values[VAR_OY] = av_expr_eval(oy_expr, var_values, NULL);
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/* calc again in case ox is relative to oy */
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var_values[VAR_OVERLAY_X] =
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var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
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/* calc overlay_w and overlay_h again incase relative to ox,oy */
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var_values[VAR_OVERLAY_W] =
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var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
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var_values[VAR_OVERLAY_H] =
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var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
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var_values[VAR_OVERLAY_W] =
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var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
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release:
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av_expr_free(ox_expr);
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av_expr_free(oy_expr);
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av_expr_free(ow_expr);
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av_expr_free(oh_expr);
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return ret;
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}
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static int have_alpha_planar(AVFilterLink *link)
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{
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2018-05-24 08:34:32 +00:00
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enum AVPixelFormat pix_fmt = link->format;
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2017-08-18 01:40:47 +00:00
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const AVPixFmtDescriptor *desc;
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AVHWFramesContext *fctx;
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if (link->format == AV_PIX_FMT_QSV) {
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fctx = (AVHWFramesContext *)link->hw_frames_ctx->data;
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pix_fmt = fctx->sw_format;
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}
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desc = av_pix_fmt_desc_get(pix_fmt);
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if (!desc)
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return 0;
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return !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
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}
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static int config_main_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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QSVOverlayContext *vpp = ctx->priv;
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mfxVPPCompInputStream *st = &vpp->comp_conf.InputStream[0];
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av_log(ctx, AV_LOG_DEBUG, "Input[%d] is of %s.\n", FF_INLINK_IDX(inlink),
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av_get_pix_fmt_name(inlink->format));
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vpp->var_values[VAR_MAIN_iW] =
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vpp->var_values[VAR_MW] = inlink->w;
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vpp->var_values[VAR_MAIN_iH] =
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vpp->var_values[VAR_MH] = inlink->h;
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st->DstX = 0;
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st->DstY = 0;
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st->DstW = inlink->w;
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st->DstH = inlink->h;
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st->GlobalAlphaEnable = 0;
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st->PixelAlphaEnable = 0;
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return 0;
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}
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static int config_overlay_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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QSVOverlayContext *vpp = ctx->priv;
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mfxVPPCompInputStream *st = &vpp->comp_conf.InputStream[1];
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int ret = 0;
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av_log(ctx, AV_LOG_DEBUG, "Input[%d] is of %s.\n", FF_INLINK_IDX(inlink),
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av_get_pix_fmt_name(inlink->format));
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vpp->var_values[VAR_OVERLAY_iW] = inlink->w;
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vpp->var_values[VAR_OVERLAY_iH] = inlink->h;
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ret = eval_expr(ctx);
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if (ret < 0)
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return ret;
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st->DstX = vpp->var_values[VAR_OX];
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st->DstY = vpp->var_values[VAR_OY];
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st->DstW = vpp->var_values[VAR_OW];
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st->DstH = vpp->var_values[VAR_OH];
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st->GlobalAlpha = vpp->overlay_alpha;
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st->GlobalAlphaEnable = (st->GlobalAlpha < 255);
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st->PixelAlphaEnable = have_alpha_planar(inlink);
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return 0;
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}
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2018-04-03 01:50:19 +00:00
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static int process_frame(FFFrameSync *fs)
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{
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AVFilterContext *ctx = fs->parent;
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QSVOverlayContext *s = fs->opaque;
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AVFrame *frame = NULL;
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int ret = 0, i;
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for (i = 0; i < ctx->nb_inputs; i++) {
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ret = ff_framesync_get_frame(fs, i, &frame, 0);
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if (ret == 0)
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ret = ff_qsvvpp_filter_frame(s->qsv, ctx->inputs[i], frame);
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if (ret < 0 && ret != AVERROR(EAGAIN))
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break;
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}
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return ret;
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}
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static int init_framesync(AVFilterContext *ctx)
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{
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QSVOverlayContext *s = ctx->priv;
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int ret, i;
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s->fs.on_event = process_frame;
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s->fs.opaque = s;
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ret = ff_framesync_init(&s->fs, ctx, ctx->nb_inputs);
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if (ret < 0)
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return ret;
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for (i = 0; i < ctx->nb_inputs; i++) {
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FFFrameSyncIn *in = &s->fs.in[i];
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in->before = EXT_STOP;
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in->after = EXT_INFINITY;
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in->sync = i ? 1 : 2;
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in->time_base = ctx->inputs[i]->time_base;
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}
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return ff_framesync_configure(&s->fs);
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}
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2017-08-18 01:40:47 +00:00
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static int config_output(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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QSVOverlayContext *vpp = ctx->priv;
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AVFilterLink *in0 = ctx->inputs[0];
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AVFilterLink *in1 = ctx->inputs[1];
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2018-04-03 01:50:19 +00:00
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int ret;
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2017-08-18 01:40:47 +00:00
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av_log(ctx, AV_LOG_DEBUG, "Output is of %s.\n", av_get_pix_fmt_name(outlink->format));
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if ((in0->format == AV_PIX_FMT_QSV && in1->format != AV_PIX_FMT_QSV) ||
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(in0->format != AV_PIX_FMT_QSV && in1->format == AV_PIX_FMT_QSV)) {
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av_log(ctx, AV_LOG_ERROR, "Mixing hardware and software pixel formats is not supported.\n");
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return AVERROR(EINVAL);
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} else if (in0->format == AV_PIX_FMT_QSV) {
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AVHWFramesContext *hw_frame0 = (AVHWFramesContext *)in0->hw_frames_ctx->data;
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AVHWFramesContext *hw_frame1 = (AVHWFramesContext *)in1->hw_frames_ctx->data;
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if (hw_frame0->device_ctx != hw_frame1->device_ctx) {
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av_log(ctx, AV_LOG_ERROR, "Inputs with different underlying QSV devices are forbidden.\n");
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return AVERROR(EINVAL);
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}
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}
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outlink->w = vpp->var_values[VAR_MW];
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outlink->h = vpp->var_values[VAR_MH];
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outlink->frame_rate = in0->frame_rate;
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outlink->time_base = av_inv_q(outlink->frame_rate);
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2018-04-03 01:50:19 +00:00
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ret = init_framesync(ctx);
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if (ret < 0)
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return ret;
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2017-08-18 01:40:47 +00:00
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2018-04-03 01:50:19 +00:00
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return ff_qsvvpp_create(ctx, &vpp->qsv, &vpp->qsv_param);
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2017-08-18 01:40:47 +00:00
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}
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2018-04-03 01:50:19 +00:00
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/*
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* Callback for qsvvpp
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* @Note: qsvvpp composition does not generate PTS for result frame.
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* so we assign the PTS from framesync to the output frame.
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*/
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2017-08-18 01:40:47 +00:00
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2018-04-03 01:50:19 +00:00
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static int filter_callback(AVFilterLink *outlink, AVFrame *frame)
|
2017-08-18 01:40:47 +00:00
|
|
|
{
|
2018-04-03 01:50:19 +00:00
|
|
|
QSVOverlayContext *s = outlink->src->priv;
|
|
|
|
frame->pts = av_rescale_q(s->fs.pts,
|
|
|
|
s->fs.time_base, outlink->time_base);
|
|
|
|
return ff_filter_frame(outlink, frame);
|
2017-08-18 01:40:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int overlay_qsv_init(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
QSVOverlayContext *vpp = ctx->priv;
|
|
|
|
|
|
|
|
/* fill composite config */
|
|
|
|
vpp->comp_conf.Header.BufferId = MFX_EXTBUFF_VPP_COMPOSITE;
|
|
|
|
vpp->comp_conf.Header.BufferSz = sizeof(vpp->comp_conf);
|
|
|
|
vpp->comp_conf.NumInputStream = ctx->nb_inputs;
|
|
|
|
vpp->comp_conf.InputStream = av_mallocz_array(ctx->nb_inputs,
|
|
|
|
sizeof(*vpp->comp_conf.InputStream));
|
|
|
|
if (!vpp->comp_conf.InputStream)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
/* initialize QSVVPP params */
|
2018-04-03 01:50:19 +00:00
|
|
|
vpp->qsv_param.filter_frame = filter_callback;
|
2017-08-18 01:40:47 +00:00
|
|
|
vpp->qsv_param.ext_buf = av_mallocz(sizeof(*vpp->qsv_param.ext_buf));
|
|
|
|
if (!vpp->qsv_param.ext_buf)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
vpp->qsv_param.ext_buf[0] = (mfxExtBuffer *)&vpp->comp_conf;
|
|
|
|
vpp->qsv_param.num_ext_buf = 1;
|
|
|
|
vpp->qsv_param.out_sw_format = AV_PIX_FMT_NV12;
|
|
|
|
vpp->qsv_param.num_crop = 0;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2019-05-31 00:44:49 +00:00
|
|
|
static av_cold void overlay_qsv_uninit(AVFilterContext *ctx)
|
2017-08-18 01:40:47 +00:00
|
|
|
{
|
|
|
|
QSVOverlayContext *vpp = ctx->priv;
|
|
|
|
|
|
|
|
ff_qsvvpp_free(&vpp->qsv);
|
2018-04-03 01:50:19 +00:00
|
|
|
ff_framesync_uninit(&vpp->fs);
|
2017-08-18 01:40:47 +00:00
|
|
|
av_freep(&vpp->comp_conf.InputStream);
|
|
|
|
av_freep(&vpp->qsv_param.ext_buf);
|
|
|
|
}
|
|
|
|
|
2018-04-03 01:50:19 +00:00
|
|
|
static int activate(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
QSVOverlayContext *s = ctx->priv;
|
|
|
|
return ff_framesync_activate(&s->fs);
|
|
|
|
}
|
|
|
|
|
2017-08-18 01:40:47 +00:00
|
|
|
static int overlay_qsv_query_formats(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
int i;
|
2017-11-20 09:14:33 +00:00
|
|
|
int ret;
|
2017-08-18 01:40:47 +00:00
|
|
|
|
|
|
|
static const enum AVPixelFormat main_in_fmts[] = {
|
|
|
|
AV_PIX_FMT_YUV420P,
|
|
|
|
AV_PIX_FMT_NV12,
|
|
|
|
AV_PIX_FMT_YUYV422,
|
|
|
|
AV_PIX_FMT_RGB32,
|
|
|
|
AV_PIX_FMT_QSV,
|
|
|
|
AV_PIX_FMT_NONE
|
|
|
|
};
|
|
|
|
static const enum AVPixelFormat out_pix_fmts[] = {
|
|
|
|
AV_PIX_FMT_NV12,
|
|
|
|
AV_PIX_FMT_QSV,
|
|
|
|
AV_PIX_FMT_NONE
|
|
|
|
};
|
|
|
|
|
2017-11-20 09:14:33 +00:00
|
|
|
for (i = 0; i < ctx->nb_inputs; i++) {
|
2020-08-24 10:16:34 +00:00
|
|
|
ret = ff_formats_ref(ff_make_format_list(main_in_fmts), &ctx->inputs[i]->outcfg.formats);
|
2017-11-20 09:14:33 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
}
|
2017-08-18 01:40:47 +00:00
|
|
|
|
2020-08-24 10:16:34 +00:00
|
|
|
ret = ff_formats_ref(ff_make_format_list(out_pix_fmts), &ctx->outputs[0]->incfg.formats);
|
2017-11-20 09:14:33 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2017-08-18 01:40:47 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const AVFilterPad overlay_qsv_inputs[] = {
|
|
|
|
{
|
|
|
|
.name = "main",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.config_props = config_main_input,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "overlay",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.config_props = config_overlay_input,
|
|
|
|
},
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVFilterPad overlay_qsv_outputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.config_props = config_output,
|
|
|
|
},
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
2021-04-19 16:33:56 +00:00
|
|
|
const AVFilter ff_vf_overlay_qsv = {
|
2017-08-18 01:40:47 +00:00
|
|
|
.name = "overlay_qsv",
|
|
|
|
.description = NULL_IF_CONFIG_SMALL("Quick Sync Video overlay."),
|
|
|
|
.priv_size = sizeof(QSVOverlayContext),
|
|
|
|
.query_formats = overlay_qsv_query_formats,
|
2018-04-03 01:50:19 +00:00
|
|
|
.preinit = overlay_qsv_framesync_preinit,
|
2017-08-18 01:40:47 +00:00
|
|
|
.init = overlay_qsv_init,
|
|
|
|
.uninit = overlay_qsv_uninit,
|
2018-04-03 01:50:19 +00:00
|
|
|
.activate = activate,
|
2017-08-18 01:40:47 +00:00
|
|
|
.inputs = overlay_qsv_inputs,
|
|
|
|
.outputs = overlay_qsv_outputs,
|
|
|
|
.priv_class = &overlay_qsv_class,
|
|
|
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
|
|
|
};
|