mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
lavfi: add a QSV scaling filter
This commit is contained in:
Anton Khirnov
parent
ad9c9440d5
commit
ac7bfd6967
@ -59,6 +59,7 @@ version <next>:
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- G.729 raw demuxer
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- MagicYUV decoder
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- Duck TrueMotion 2.0 Real Time decoder
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- Intel QSV video scaling filter
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version 11:
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1
configure
vendored
1
configure
vendored
@ -2409,6 +2409,7 @@ interlace_filter_deps="gpl"
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ocv_filter_deps="libopencv"
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resample_filter_deps="avresample"
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scale_filter_deps="swscale"
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scale_qsv_filter_deps="libmfx"
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scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
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# examples
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@ -75,6 +75,7 @@ OBJS-$(CONFIG_PAD_FILTER) += vf_pad.o
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OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o
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OBJS-$(CONFIG_SCALE_FILTER) += vf_scale.o
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OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o
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OBJS-$(CONFIG_SCALE_QSV_FILTER) += vf_scale_qsv.o
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OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o
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OBJS-$(CONFIG_SELECT_FILTER) += vf_select.o
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OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o
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@ -98,6 +98,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER(PIXDESCTEST, pixdesctest, vf);
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REGISTER_FILTER(SCALE, scale, vf);
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REGISTER_FILTER(SCALE_NPP, scale_npp, vf);
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REGISTER_FILTER(SCALE_QSV, scale_qsv, vf);
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REGISTER_FILTER(SCALE_VAAPI, scale_vaapi, vf);
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REGISTER_FILTER(SELECT, select, vf);
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REGISTER_FILTER(SETDAR, setdar, vf);
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@ -30,7 +30,7 @@
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#include "libavutil/version.h"
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#define LIBAVFILTER_VERSION_MAJOR 6
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#define LIBAVFILTER_VERSION_MINOR 4
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#define LIBAVFILTER_VERSION_MINOR 5
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#define LIBAVFILTER_VERSION_MICRO 0
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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633
libavfilter/vf_scale_qsv.c
Normal file
633
libavfilter/vf_scale_qsv.c
Normal file
@ -0,0 +1,633 @@
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/*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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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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* Libav is distributed in the hope that it will be useful,
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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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* License along with Libav; if not, write to the Free Software
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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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* scale video filter - QSV
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*/
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#include <mfx/mfxvideo.h>
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#include <stdio.h>
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#include <string.h>
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#include "libavutil/avstring.h"
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#include "libavutil/common.h"
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#include "libavutil/eval.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_qsv.h"
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#include "libavutil/internal.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/time.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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static const char *const var_names[] = {
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"PI",
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"PHI",
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"E",
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"in_w", "iw",
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"in_h", "ih",
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"out_w", "ow",
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"out_h", "oh",
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"a", "dar",
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"sar",
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NULL
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};
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enum var_name {
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VAR_PI,
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VAR_PHI,
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VAR_E,
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VAR_IN_W, VAR_IW,
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VAR_IN_H, VAR_IH,
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VAR_OUT_W, VAR_OW,
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VAR_OUT_H, VAR_OH,
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VAR_A, VAR_DAR,
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VAR_SAR,
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VARS_NB
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};
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typedef struct QSVScaleContext {
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const AVClass *class;
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AVBufferRef *out_frames_ref;
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/* a clone of the main session, used internally for scaling */
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mfxSession session;
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mfxMemId *mem_ids_in;
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int nb_mem_ids_in;
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mfxMemId *mem_ids_out;
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int nb_mem_ids_out;
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mfxFrameSurface1 **surface_ptrs_in;
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int nb_surface_ptrs_in;
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mfxFrameSurface1 **surface_ptrs_out;
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int nb_surface_ptrs_out;
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mfxExtOpaqueSurfaceAlloc opaque_alloc;
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mfxExtBuffer *ext_buffers[1];
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int shift_width, shift_height;
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/**
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* New dimensions. Special values are:
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* 0 = original width/height
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* -1 = keep original aspect
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*/
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int w, h;
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/**
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* Output sw format. AV_PIX_FMT_NONE for no conversion.
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*/
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enum AVPixelFormat format;
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char *w_expr; ///< width expression string
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char *h_expr; ///< height expression string
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char *format_str;
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} QSVScaleContext;
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static int qsvscale_init(AVFilterContext *ctx)
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{
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QSVScaleContext *s = ctx->priv;
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if (!strcmp(s->format_str, "same")) {
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s->format = AV_PIX_FMT_NONE;
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} else {
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s->format = av_get_pix_fmt(s->format_str);
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if (s->format == AV_PIX_FMT_NONE) {
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av_log(ctx, AV_LOG_ERROR, "Unrecognized pixel format: %s\n", s->format_str);
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return AVERROR(EINVAL);
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}
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}
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return 0;
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}
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static void qsvscale_uninit(AVFilterContext *ctx)
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{
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QSVScaleContext *s = ctx->priv;
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if (s->session) {
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MFXClose(s->session);
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s->session = NULL;
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}
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av_buffer_unref(&s->out_frames_ref);
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av_freep(&s->mem_ids_in);
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av_freep(&s->mem_ids_out);
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s->nb_mem_ids_in = 0;
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s->nb_mem_ids_out = 0;
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av_freep(&s->surface_ptrs_in);
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av_freep(&s->surface_ptrs_out);
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s->nb_surface_ptrs_in = 0;
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s->nb_surface_ptrs_out = 0;
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}
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static int qsvscale_query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pixel_formats[] = {
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AV_PIX_FMT_QSV, AV_PIX_FMT_NONE,
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};
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AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats);
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ff_set_common_formats(ctx, pix_fmts);
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return 0;
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}
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static int init_out_pool(AVFilterContext *ctx,
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int out_width, int out_height)
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{
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QSVScaleContext *s = ctx->priv;
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AVHWFramesContext *in_frames_ctx;
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AVHWFramesContext *out_frames_ctx;
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AVQSVFramesContext *in_frames_hwctx;
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AVQSVFramesContext *out_frames_hwctx;
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enum AVPixelFormat in_format;
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enum AVPixelFormat out_format;
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int i, ret;
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/* check that we have a hw context */
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if (!ctx->inputs[0]->hw_frames_ctx) {
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av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
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return AVERROR(EINVAL);
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}
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in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
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in_frames_hwctx = in_frames_ctx->hwctx;
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in_format = in_frames_ctx->sw_format;
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out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format;
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s->out_frames_ref = av_hwframe_ctx_alloc(in_frames_ctx->device_ref);
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if (!s->out_frames_ref)
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return AVERROR(ENOMEM);
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out_frames_ctx = (AVHWFramesContext*)s->out_frames_ref->data;
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out_frames_hwctx = out_frames_ctx->hwctx;
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out_frames_ctx->format = AV_PIX_FMT_QSV;
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out_frames_ctx->width = FFALIGN(out_width, 32);
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out_frames_ctx->height = FFALIGN(out_height, 32);
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out_frames_ctx->sw_format = out_format;
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out_frames_ctx->initial_pool_size = 32;
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out_frames_hwctx->frame_type = in_frames_hwctx->frame_type;
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ret = av_hwframe_ctx_init(s->out_frames_ref);
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if (ret < 0)
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return ret;
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for (i = 0; i < out_frames_hwctx->nb_surfaces; i++) {
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mfxFrameInfo *info = &out_frames_hwctx->surfaces[i].Info;
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info->CropW = out_width;
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info->CropH = out_height;
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}
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return 0;
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}
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static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
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mfxFrameAllocResponse *resp)
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{
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AVFilterContext *ctx = pthis;
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QSVScaleContext *s = ctx->priv;
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if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET) ||
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!(req->Type & (MFX_MEMTYPE_FROM_VPPIN | MFX_MEMTYPE_FROM_VPPOUT)) ||
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!(req->Type & MFX_MEMTYPE_EXTERNAL_FRAME))
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return MFX_ERR_UNSUPPORTED;
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if (req->Type & MFX_MEMTYPE_FROM_VPPIN) {
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resp->mids = s->mem_ids_in;
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resp->NumFrameActual = s->nb_mem_ids_in;
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} else {
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resp->mids = s->mem_ids_out;
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resp->NumFrameActual = s->nb_mem_ids_out;
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}
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return MFX_ERR_NONE;
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}
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static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
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{
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return MFX_ERR_NONE;
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}
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static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
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{
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return MFX_ERR_UNSUPPORTED;
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}
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static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
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{
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return MFX_ERR_UNSUPPORTED;
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}
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static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
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{
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*hdl = mid;
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return MFX_ERR_NONE;
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}
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static const mfxHandleType handle_types[] = {
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MFX_HANDLE_VA_DISPLAY,
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MFX_HANDLE_D3D9_DEVICE_MANAGER,
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MFX_HANDLE_D3D11_DEVICE,
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};
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static int init_out_session(AVFilterContext *ctx)
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{
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QSVScaleContext *s = ctx->priv;
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AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
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AVHWFramesContext *out_frames_ctx = (AVHWFramesContext*)s->out_frames_ref->data;
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AVQSVFramesContext *in_frames_hwctx = in_frames_ctx->hwctx;
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AVQSVFramesContext *out_frames_hwctx = out_frames_ctx->hwctx;
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AVQSVDeviceContext *device_hwctx = in_frames_ctx->device_ctx->hwctx;
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int opaque = !!(in_frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME);
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mfxHDL handle = NULL;
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mfxHandleType handle_type;
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mfxVersion ver;
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mfxIMPL impl;
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mfxVideoParam par;
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mfxStatus err;
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int i;
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/* extract the properties of the "master" session given to us */
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err = MFXQueryIMPL(device_hwctx->session, &impl);
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if (err == MFX_ERR_NONE)
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err = MFXQueryVersion(device_hwctx->session, &ver);
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if (err != MFX_ERR_NONE) {
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av_log(ctx, AV_LOG_ERROR, "Error querying the session attributes\n");
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return AVERROR_UNKNOWN;
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}
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for (i = 0; i < FF_ARRAY_ELEMS(handle_types); i++) {
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err = MFXVideoCORE_GetHandle(device_hwctx->session, handle_types[i], &handle);
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if (err == MFX_ERR_NONE) {
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handle_type = handle_types[i];
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break;
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}
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}
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/* create a "slave" session with those same properties, to be used for
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* actual scaling */
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err = MFXInit(impl, &ver, &s->session);
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if (err != MFX_ERR_NONE) {
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av_log(ctx, AV_LOG_ERROR, "Error initializing a session for scaling\n");
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return AVERROR_UNKNOWN;
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}
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if (handle) {
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err = MFXVideoCORE_SetHandle(s->session, handle_type, handle);
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if (err != MFX_ERR_NONE)
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return AVERROR_UNKNOWN;
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}
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memset(&par, 0, sizeof(par));
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if (opaque) {
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s->surface_ptrs_in = av_mallocz_array(in_frames_hwctx->nb_surfaces,
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sizeof(*s->surface_ptrs_in));
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if (!s->surface_ptrs_in)
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return AVERROR(ENOMEM);
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for (i = 0; i < in_frames_hwctx->nb_surfaces; i++)
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s->surface_ptrs_in[i] = in_frames_hwctx->surfaces + i;
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s->nb_surface_ptrs_in = in_frames_hwctx->nb_surfaces;
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s->surface_ptrs_out = av_mallocz_array(out_frames_hwctx->nb_surfaces,
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sizeof(*s->surface_ptrs_out));
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if (!s->surface_ptrs_out)
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return AVERROR(ENOMEM);
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for (i = 0; i < out_frames_hwctx->nb_surfaces; i++)
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s->surface_ptrs_out[i] = out_frames_hwctx->surfaces + i;
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s->nb_surface_ptrs_out = out_frames_hwctx->nb_surfaces;
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s->opaque_alloc.In.Surfaces = s->surface_ptrs_in;
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s->opaque_alloc.In.NumSurface = s->nb_surface_ptrs_in;
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s->opaque_alloc.In.Type = in_frames_hwctx->frame_type;
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s->opaque_alloc.Out.Surfaces = s->surface_ptrs_out;
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s->opaque_alloc.Out.NumSurface = s->nb_surface_ptrs_out;
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s->opaque_alloc.Out.Type = out_frames_hwctx->frame_type;
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s->opaque_alloc.Header.BufferId = MFX_EXTBUFF_OPAQUE_SURFACE_ALLOCATION;
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s->opaque_alloc.Header.BufferSz = sizeof(s->opaque_alloc);
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s->ext_buffers[0] = (mfxExtBuffer*)&s->opaque_alloc;
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par.ExtParam = s->ext_buffers;
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par.NumExtParam = FF_ARRAY_ELEMS(s->ext_buffers);
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par.IOPattern = MFX_IOPATTERN_IN_OPAQUE_MEMORY | MFX_IOPATTERN_OUT_OPAQUE_MEMORY;
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} else {
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mfxFrameAllocator frame_allocator = {
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.pthis = ctx,
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.Alloc = frame_alloc,
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.Lock = frame_lock,
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.Unlock = frame_unlock,
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.GetHDL = frame_get_hdl,
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.Free = frame_free,
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};
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s->mem_ids_in = av_mallocz_array(in_frames_hwctx->nb_surfaces,
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sizeof(*s->mem_ids_in));
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if (!s->mem_ids_in)
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return AVERROR(ENOMEM);
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for (i = 0; i < in_frames_hwctx->nb_surfaces; i++)
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s->mem_ids_in[i] = in_frames_hwctx->surfaces[i].Data.MemId;
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s->nb_mem_ids_in = in_frames_hwctx->nb_surfaces;
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s->mem_ids_out = av_mallocz_array(out_frames_hwctx->nb_surfaces,
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sizeof(*s->mem_ids_out));
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if (!s->mem_ids_out)
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return AVERROR(ENOMEM);
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for (i = 0; i < out_frames_hwctx->nb_surfaces; i++)
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s->mem_ids_out[i] = out_frames_hwctx->surfaces[i].Data.MemId;
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s->nb_mem_ids_out = out_frames_hwctx->nb_surfaces;
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err = MFXVideoCORE_SetFrameAllocator(s->session, &frame_allocator);
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if (err != MFX_ERR_NONE)
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return AVERROR_UNKNOWN;
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par.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY | MFX_IOPATTERN_OUT_VIDEO_MEMORY;
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}
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par.AsyncDepth = 1; // TODO async
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par.vpp.In = in_frames_hwctx->surfaces[0].Info;
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par.vpp.Out = out_frames_hwctx->surfaces[0].Info;
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/* Apparently VPP requires the frame rate to be set to some value, otherwise
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* init will fail (probably for the framerate conversion filter). Since we
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* are only doing scaling here, we just invent an arbitrary
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* value */
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par.vpp.In.FrameRateExtN = 25;
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par.vpp.In.FrameRateExtD = 1;
|
||||
par.vpp.Out.FrameRateExtN = 25;
|
||||
par.vpp.Out.FrameRateExtD = 1;
|
||||
|
||||
err = MFXVideoVPP_Init(s->session, &par);
|
||||
if (err != MFX_ERR_NONE) {
|
||||
av_log(ctx, AV_LOG_ERROR, "Error opening the VPP for scaling\n");
|
||||
return AVERROR_UNKNOWN;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int init_scale_session(AVFilterContext *ctx, int in_width, int in_height,
|
||||
int out_width, int out_height)
|
||||
{
|
||||
QSVScaleContext *s = ctx->priv;
|
||||
|
||||
int ret;
|
||||
|
||||
qsvscale_uninit(ctx);
|
||||
|
||||
ret = init_out_pool(ctx, out_width, out_height);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = init_out_session(ctx);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
av_buffer_unref(&ctx->outputs[0]->hw_frames_ctx);
|
||||
ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->out_frames_ref);
|
||||
if (!ctx->outputs[0]->hw_frames_ctx)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int qsvscale_config_props(AVFilterLink *outlink)
|
||||
{
|
||||
AVFilterContext *ctx = outlink->src;
|
||||
AVFilterLink *inlink = outlink->src->inputs[0];
|
||||
QSVScaleContext *s = ctx->priv;
|
||||
int64_t w, h;
|
||||
double var_values[VARS_NB], res;
|
||||
char *expr;
|
||||
int ret;
|
||||
|
||||
var_values[VAR_PI] = M_PI;
|
||||
var_values[VAR_PHI] = M_PHI;
|
||||
var_values[VAR_E] = M_E;
|
||||
var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
|
||||
var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
|
||||
var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
|
||||
var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
|
||||
var_values[VAR_A] = (double) inlink->w / inlink->h;
|
||||
var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
|
||||
(double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
|
||||
var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
|
||||
|
||||
/* evaluate width and height */
|
||||
av_expr_parse_and_eval(&res, (expr = s->w_expr),
|
||||
var_names, var_values,
|
||||
NULL, NULL, NULL, NULL, NULL, 0, ctx);
|
||||
s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
|
||||
if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
|
||||
var_names, var_values,
|
||||
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
|
||||
goto fail;
|
||||
s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
|
||||
/* evaluate again the width, as it may depend on the output height */
|
||||
if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
|
||||
var_names, var_values,
|
||||
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
|
||||
goto fail;
|
||||
s->w = res;
|
||||
|
||||
w = s->w;
|
||||
h = s->h;
|
||||
|
||||
/* sanity check params */
|
||||
if (w < -1 || h < -1) {
|
||||
av_log(ctx, AV_LOG_ERROR, "Size values less than -1 are not acceptable.\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
if (w == -1 && h == -1)
|
||||
s->w = s->h = 0;
|
||||
|
||||
if (!(w = s->w))
|
||||
w = inlink->w;
|
||||
if (!(h = s->h))
|
||||
h = inlink->h;
|
||||
if (w == -1)
|
||||
w = av_rescale(h, inlink->w, inlink->h);
|
||||
if (h == -1)
|
||||
h = av_rescale(w, inlink->h, inlink->w);
|
||||
|
||||
if (w > INT_MAX || h > INT_MAX ||
|
||||
(h * inlink->w) > INT_MAX ||
|
||||
(w * inlink->h) > INT_MAX)
|
||||
av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
|
||||
|
||||
outlink->w = w;
|
||||
outlink->h = h;
|
||||
|
||||
ret = init_scale_session(ctx, inlink->w, inlink->h, w, h);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n",
|
||||
inlink->w, inlink->h, outlink->w, outlink->h);
|
||||
|
||||
if (inlink->sample_aspect_ratio.num)
|
||||
outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
|
||||
outlink->w*inlink->h},
|
||||
inlink->sample_aspect_ratio);
|
||||
else
|
||||
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
av_log(NULL, AV_LOG_ERROR,
|
||||
"Error when evaluating the expression '%s'\n", expr);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int qsvscale_filter_frame(AVFilterLink *link, AVFrame *in)
|
||||
{
|
||||
AVFilterContext *ctx = link->dst;
|
||||
QSVScaleContext *s = ctx->priv;
|
||||
AVFilterLink *outlink = ctx->outputs[0];
|
||||
|
||||
mfxSyncPoint sync = NULL;
|
||||
mfxStatus err;
|
||||
|
||||
AVFrame *out = NULL;
|
||||
int ret = 0;
|
||||
|
||||
out = av_frame_alloc();
|
||||
if (!out) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = av_hwframe_get_buffer(s->out_frames_ref, out, 0);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
do {
|
||||
err = MFXVideoVPP_RunFrameVPPAsync(s->session,
|
||||
(mfxFrameSurface1*)in->data[3],
|
||||
(mfxFrameSurface1*)out->data[3],
|
||||
NULL, &sync);
|
||||
if (err == MFX_WRN_DEVICE_BUSY)
|
||||
av_usleep(1);
|
||||
} while (err == MFX_WRN_DEVICE_BUSY);
|
||||
|
||||
if (err < 0 || !sync) {
|
||||
av_log(ctx, AV_LOG_ERROR, "Error during scaling\n");
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
do {
|
||||
err = MFXVideoCORE_SyncOperation(s->session, sync, 1000);
|
||||
} while (err == MFX_WRN_IN_EXECUTION);
|
||||
if (err < 0) {
|
||||
av_log(ctx, AV_LOG_ERROR, "Error synchronizing the operation: %d\n", err);
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = av_frame_copy_props(out, in);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
out->width = outlink->w;
|
||||
out->height = outlink->h;
|
||||
|
||||
av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
|
||||
(int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
|
||||
(int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
|
||||
INT_MAX);
|
||||
|
||||
av_frame_free(&in);
|
||||
return ff_filter_frame(outlink, out);
|
||||
fail:
|
||||
av_frame_free(&in);
|
||||
av_frame_free(&out);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#define OFFSET(x) offsetof(QSVScaleContext, x)
|
||||
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
|
||||
static const AVOption options[] = {
|
||||
{ "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
|
||||
{ "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
|
||||
{ "format", "Output pixel format", OFFSET(format_str), AV_OPT_TYPE_STRING, { .str = "same" }, .flags = FLAGS },
|
||||
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
static const AVClass qsvscale_class = {
|
||||
.class_name = "qsvscale",
|
||||
.item_name = av_default_item_name,
|
||||
.option = options,
|
||||
.version = LIBAVUTIL_VERSION_INT,
|
||||
};
|
||||
|
||||
static const AVFilterPad qsvscale_inputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = qsvscale_filter_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
static const AVFilterPad qsvscale_outputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = qsvscale_config_props,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFilter ff_vf_scale_qsv = {
|
||||
.name = "scale_qsv",
|
||||
.description = NULL_IF_CONFIG_SMALL("QuickSync video scaling and format conversion"),
|
||||
|
||||
.init = qsvscale_init,
|
||||
.uninit = qsvscale_uninit,
|
||||
.query_formats = qsvscale_query_formats,
|
||||
|
||||
.priv_size = sizeof(QSVScaleContext),
|
||||
.priv_class = &qsvscale_class,
|
||||
|
||||
.inputs = qsvscale_inputs,
|
||||
.outputs = qsvscale_outputs,
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user