1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 /**
20  * @file
21  * deinterlace video filter - QSV
22  */
23 
24 #include <mfx/mfxvideo.h>
25 
26 #include <stdio.h>
27 #include <string.h>
28 
29 #include "libavutil/avstring.h"
30 #include "libavutil/common.h"
31 #include "libavutil/hwcontext.h"
32 #include "libavutil/hwcontext_qsv.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/opt.h"
36 #include "libavutil/pixdesc.h"
37 #include "libavutil/time.h"
38 #include "libavfilter/qsvvpp.h"
39 
40 #include "avfilter.h"
41 #include "formats.h"
42 #include "internal.h"
43 #include "video.h"
44 
45 enum {
46     QSVDEINT_MORE_OUTPUT = 1,
47     QSVDEINT_MORE_INPUT,
48 };
49 
50 typedef struct QSVFrame {
51     AVFrame *frame;
52     mfxFrameSurface1 surface;
53     int used;
54 
55     struct QSVFrame *next;
56 } QSVFrame;
57 
58 typedef struct QSVDeintContext {
59     const AVClass *class;
60 
61     AVBufferRef *hw_frames_ctx;
62     /* a clone of the main session, used internally for deinterlacing */
63     mfxSession   session;
64 
65     mfxMemId *mem_ids;
66     int    nb_mem_ids;
67 
68     mfxFrameSurface1 **surface_ptrs;
69     int             nb_surface_ptrs;
70 
71     mfxExtOpaqueSurfaceAlloc opaque_alloc;
72     mfxExtVPPDeinterlacing   deint_conf;
73     mfxExtBuffer            *ext_buffers[2];
74     int                      num_ext_buffers;
75 
76     QSVFrame *work_frames;
77 
78     int64_t last_pts;
79 
80     int eof;
81 
82     /* option for Deinterlacing algorithm to be used */
83     int mode;
84 } QSVDeintContext;
85 
qsvdeint_uninit(AVFilterContext * ctx)86 static av_cold void qsvdeint_uninit(AVFilterContext *ctx)
87 {
88     QSVDeintContext *s = ctx->priv;
89     QSVFrame *cur;
90 
91     if (s->session) {
92         MFXClose(s->session);
93         s->session = NULL;
94     }
95     av_buffer_unref(&s->hw_frames_ctx);
96 
97     cur = s->work_frames;
98     while (cur) {
99         s->work_frames = cur->next;
100         av_frame_free(&cur->frame);
101         av_freep(&cur);
102         cur = s->work_frames;
103     }
104 
105     av_freep(&s->mem_ids);
106     s->nb_mem_ids = 0;
107 
108     av_freep(&s->surface_ptrs);
109     s->nb_surface_ptrs = 0;
110 }
111 
qsvdeint_query_formats(AVFilterContext * ctx)112 static int qsvdeint_query_formats(AVFilterContext *ctx)
113 {
114     static const enum AVPixelFormat pixel_formats[] = {
115         AV_PIX_FMT_QSV, AV_PIX_FMT_NONE,
116     };
117     AVFilterFormats *pix_fmts  = ff_make_format_list(pixel_formats);
118     int ret;
119 
120     if ((ret = ff_set_common_formats(ctx, pix_fmts)) < 0)
121         return ret;
122 
123     return 0;
124 }
125 
frame_alloc(mfxHDL pthis,mfxFrameAllocRequest * req,mfxFrameAllocResponse * resp)126 static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
127                              mfxFrameAllocResponse *resp)
128 {
129     AVFilterContext *ctx = pthis;
130     QSVDeintContext   *s = ctx->priv;
131 
132     if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET) ||
133         !(req->Type & (MFX_MEMTYPE_FROM_VPPIN | MFX_MEMTYPE_FROM_VPPOUT)) ||
134         !(req->Type & MFX_MEMTYPE_EXTERNAL_FRAME))
135         return MFX_ERR_UNSUPPORTED;
136 
137     resp->mids           = s->mem_ids;
138     resp->NumFrameActual = s->nb_mem_ids;
139 
140     return MFX_ERR_NONE;
141 }
142 
frame_free(mfxHDL pthis,mfxFrameAllocResponse * resp)143 static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
144 {
145     return MFX_ERR_NONE;
146 }
147 
frame_lock(mfxHDL pthis,mfxMemId mid,mfxFrameData * ptr)148 static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
149 {
150     return MFX_ERR_UNSUPPORTED;
151 }
152 
frame_unlock(mfxHDL pthis,mfxMemId mid,mfxFrameData * ptr)153 static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
154 {
155     return MFX_ERR_UNSUPPORTED;
156 }
157 
frame_get_hdl(mfxHDL pthis,mfxMemId mid,mfxHDL * hdl)158 static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
159 {
160     *hdl = mid;
161     return MFX_ERR_NONE;
162 }
163 
164 static const mfxHandleType handle_types[] = {
165     MFX_HANDLE_VA_DISPLAY,
166     MFX_HANDLE_D3D9_DEVICE_MANAGER,
167     MFX_HANDLE_D3D11_DEVICE,
168 };
169 
init_out_session(AVFilterContext * ctx)170 static int init_out_session(AVFilterContext *ctx)
171 {
172 
173     QSVDeintContext                  *s = ctx->priv;
174     AVHWFramesContext    *hw_frames_ctx = (AVHWFramesContext*)s->hw_frames_ctx->data;
175     AVQSVFramesContext *hw_frames_hwctx = hw_frames_ctx->hwctx;
176     AVQSVDeviceContext    *device_hwctx = hw_frames_ctx->device_ctx->hwctx;
177 
178     int opaque = !!(hw_frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME);
179 
180     mfxHDL handle = NULL;
181     mfxHandleType handle_type;
182     mfxVersion ver;
183     mfxIMPL impl;
184     mfxVideoParam par;
185     mfxStatus err;
186     int i;
187 
188     /* extract the properties of the "master" session given to us */
189     err = MFXQueryIMPL(device_hwctx->session, &impl);
190     if (err == MFX_ERR_NONE)
191         err = MFXQueryVersion(device_hwctx->session, &ver);
192     if (err != MFX_ERR_NONE) {
193         av_log(ctx, AV_LOG_ERROR, "Error querying the session attributes\n");
194         return AVERROR_UNKNOWN;
195     }
196 
197     for (i = 0; i < FF_ARRAY_ELEMS(handle_types); i++) {
198         err = MFXVideoCORE_GetHandle(device_hwctx->session, handle_types[i], &handle);
199         if (err == MFX_ERR_NONE) {
200             handle_type = handle_types[i];
201             break;
202         }
203     }
204 
205     if (err < 0)
206         return ff_qsvvpp_print_error(ctx, err, "Error getting the session handle");
207     else if (err > 0) {
208         ff_qsvvpp_print_warning(ctx, err, "Warning in getting the session handle");
209         return AVERROR_UNKNOWN;
210     }
211 
212     /* create a "slave" session with those same properties, to be used for
213      * actual deinterlacing */
214     err = MFXInit(impl, &ver, &s->session);
215     if (err < 0)
216         return ff_qsvvpp_print_error(ctx, err, "Error initializing a session for deinterlacing");
217     else if (err > 0) {
218         ff_qsvvpp_print_warning(ctx, err, "Warning in session initialization");
219         return AVERROR_UNKNOWN;
220     }
221 
222     if (handle) {
223         err = MFXVideoCORE_SetHandle(s->session, handle_type, handle);
224         if (err != MFX_ERR_NONE)
225             return AVERROR_UNKNOWN;
226     }
227 
228     if (QSV_RUNTIME_VERSION_ATLEAST(ver, 1, 25)) {
229         err = MFXJoinSession(device_hwctx->session, s->session);
230         if (err != MFX_ERR_NONE)
231             return AVERROR_UNKNOWN;
232     }
233 
234     memset(&par, 0, sizeof(par));
235 
236     s->deint_conf.Header.BufferId = MFX_EXTBUFF_VPP_DEINTERLACING;
237     s->deint_conf.Header.BufferSz = sizeof(s->deint_conf);
238     s->deint_conf.Mode = s->mode;
239 
240     s->ext_buffers[s->num_ext_buffers++] = (mfxExtBuffer *)&s->deint_conf;
241 
242     if (opaque) {
243         s->surface_ptrs = av_mallocz_array(hw_frames_hwctx->nb_surfaces,
244                                            sizeof(*s->surface_ptrs));
245         if (!s->surface_ptrs)
246             return AVERROR(ENOMEM);
247         for (i = 0; i < hw_frames_hwctx->nb_surfaces; i++)
248             s->surface_ptrs[i] = hw_frames_hwctx->surfaces + i;
249         s->nb_surface_ptrs = hw_frames_hwctx->nb_surfaces;
250 
251         s->opaque_alloc.In.Surfaces   = s->surface_ptrs;
252         s->opaque_alloc.In.NumSurface = s->nb_surface_ptrs;
253         s->opaque_alloc.In.Type       = hw_frames_hwctx->frame_type;
254 
255         s->opaque_alloc.Out = s->opaque_alloc.In;
256 
257         s->opaque_alloc.Header.BufferId = MFX_EXTBUFF_OPAQUE_SURFACE_ALLOCATION;
258         s->opaque_alloc.Header.BufferSz = sizeof(s->opaque_alloc);
259 
260         s->ext_buffers[s->num_ext_buffers++] = (mfxExtBuffer *)&s->opaque_alloc;
261 
262         par.IOPattern = MFX_IOPATTERN_IN_OPAQUE_MEMORY | MFX_IOPATTERN_OUT_OPAQUE_MEMORY;
263     } else {
264         mfxFrameAllocator frame_allocator = {
265             .pthis  = ctx,
266             .Alloc  = frame_alloc,
267             .Lock   = frame_lock,
268             .Unlock = frame_unlock,
269             .GetHDL = frame_get_hdl,
270             .Free   = frame_free,
271         };
272 
273         s->mem_ids = av_mallocz_array(hw_frames_hwctx->nb_surfaces,
274                                       sizeof(*s->mem_ids));
275         if (!s->mem_ids)
276             return AVERROR(ENOMEM);
277         for (i = 0; i < hw_frames_hwctx->nb_surfaces; i++)
278             s->mem_ids[i] = hw_frames_hwctx->surfaces[i].Data.MemId;
279         s->nb_mem_ids = hw_frames_hwctx->nb_surfaces;
280 
281         err = MFXVideoCORE_SetFrameAllocator(s->session, &frame_allocator);
282         if (err != MFX_ERR_NONE)
283             return AVERROR_UNKNOWN;
284 
285         par.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY | MFX_IOPATTERN_OUT_VIDEO_MEMORY;
286     }
287 
288     par.ExtParam    = s->ext_buffers;
289     par.NumExtParam = s->num_ext_buffers;
290 
291     par.AsyncDepth = 1;    // TODO async
292 
293     par.vpp.In = hw_frames_hwctx->surfaces[0].Info;
294 
295     par.vpp.In.CropW = ctx->inputs[0]->w;
296     par.vpp.In.CropH = ctx->inputs[0]->h;
297 
298     if (ctx->inputs[0]->frame_rate.num) {
299         par.vpp.In.FrameRateExtN = ctx->inputs[0]->frame_rate.num;
300         par.vpp.In.FrameRateExtD = ctx->inputs[0]->frame_rate.den;
301     } else {
302         par.vpp.In.FrameRateExtN = ctx->inputs[0]->time_base.num;
303         par.vpp.In.FrameRateExtD = ctx->inputs[0]->time_base.den;
304     }
305 
306     par.vpp.Out = par.vpp.In;
307 
308     if (ctx->outputs[0]->frame_rate.num) {
309         par.vpp.Out.FrameRateExtN = ctx->outputs[0]->frame_rate.num;
310         par.vpp.Out.FrameRateExtD = ctx->outputs[0]->frame_rate.den;
311     } else {
312         par.vpp.Out.FrameRateExtN = ctx->outputs[0]->time_base.num;
313         par.vpp.Out.FrameRateExtD = ctx->outputs[0]->time_base.den;
314     }
315 
316     /* Print input memory mode */
317     ff_qsvvpp_print_iopattern(ctx, par.IOPattern & 0x0F, "VPP");
318     /* Print output memory mode */
319     ff_qsvvpp_print_iopattern(ctx, par.IOPattern & 0xF0, "VPP");
320     err = MFXVideoVPP_Init(s->session, &par);
321     if (err < 0)
322         return ff_qsvvpp_print_error(ctx, err,
323                                      "Error opening the VPP for deinterlacing");
324     else if (err > 0) {
325         ff_qsvvpp_print_warning(ctx, err,
326                                 "Warning in VPP initialization");
327         return AVERROR_UNKNOWN;
328     }
329 
330     return 0;
331 }
332 
qsvdeint_config_props(AVFilterLink * outlink)333 static int qsvdeint_config_props(AVFilterLink *outlink)
334 {
335     AVFilterContext *ctx = outlink->src;
336     AVFilterLink *inlink = ctx->inputs[0];
337     QSVDeintContext  *s = ctx->priv;
338     int ret;
339 
340     qsvdeint_uninit(ctx);
341 
342     s->last_pts = AV_NOPTS_VALUE;
343     outlink->frame_rate = av_mul_q(inlink->frame_rate,
344                                    (AVRational){ 2, 1 });
345     outlink->time_base  = av_mul_q(inlink->time_base,
346                                    (AVRational){ 1, 2 });
347 
348     /* check that we have a hw context */
349     if (!inlink->hw_frames_ctx) {
350         av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
351         return AVERROR(EINVAL);
352     }
353 
354     s->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
355     if (!s->hw_frames_ctx)
356         return AVERROR(ENOMEM);
357 
358     av_buffer_unref(&outlink->hw_frames_ctx);
359     outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
360     if (!outlink->hw_frames_ctx) {
361         qsvdeint_uninit(ctx);
362         return AVERROR(ENOMEM);
363     }
364 
365     ret = init_out_session(ctx);
366     if (ret < 0)
367         return ret;
368 
369 
370     return 0;
371 }
372 
clear_unused_frames(QSVDeintContext * s)373 static void clear_unused_frames(QSVDeintContext *s)
374 {
375     QSVFrame *cur = s->work_frames;
376     while (cur) {
377         if (!cur->surface.Data.Locked) {
378             av_frame_free(&cur->frame);
379             cur->used = 0;
380         }
381         cur = cur->next;
382     }
383 }
384 
get_free_frame(QSVDeintContext * s,QSVFrame ** f)385 static int get_free_frame(QSVDeintContext *s, QSVFrame **f)
386 {
387     QSVFrame *frame, **last;
388 
389     clear_unused_frames(s);
390 
391     frame = s->work_frames;
392     last  = &s->work_frames;
393     while (frame) {
394         if (!frame->used) {
395             *f = frame;
396             return 0;
397         }
398 
399         last  = &frame->next;
400         frame = frame->next;
401     }
402 
403     frame = av_mallocz(sizeof(*frame));
404     if (!frame)
405         return AVERROR(ENOMEM);
406     *last = frame;
407     *f    = frame;
408 
409     return 0;
410 }
411 
submit_frame(AVFilterContext * ctx,AVFrame * frame,mfxFrameSurface1 ** surface)412 static int submit_frame(AVFilterContext *ctx, AVFrame *frame,
413                         mfxFrameSurface1 **surface)
414 {
415     QSVDeintContext *s = ctx->priv;
416     QSVFrame *qf;
417     int ret;
418 
419     ret = get_free_frame(s, &qf);
420     if (ret < 0)
421         return ret;
422 
423     qf->frame = frame;
424 
425     qf->surface = *(mfxFrameSurface1*)qf->frame->data[3];
426 
427     qf->surface.Data.Locked = 0;
428     qf->surface.Info.CropW  = qf->frame->width;
429     qf->surface.Info.CropH  = qf->frame->height;
430 
431     qf->surface.Info.PicStruct = !qf->frame->interlaced_frame ? MFX_PICSTRUCT_PROGRESSIVE :
432                                  (qf->frame->top_field_first ? MFX_PICSTRUCT_FIELD_TFF :
433                                                            MFX_PICSTRUCT_FIELD_BFF);
434     if (qf->frame->repeat_pict == 1) {
435         qf->surface.Info.PicStruct |= MFX_PICSTRUCT_FIELD_REPEATED;
436         qf->surface.Info.PicStruct |= qf->frame->top_field_first ? MFX_PICSTRUCT_FIELD_TFF :
437                                                             MFX_PICSTRUCT_FIELD_BFF;
438     } else if (qf->frame->repeat_pict == 2)
439         qf->surface.Info.PicStruct |= MFX_PICSTRUCT_FRAME_DOUBLING;
440     else if (qf->frame->repeat_pict == 4)
441         qf->surface.Info.PicStruct |= MFX_PICSTRUCT_FRAME_TRIPLING;
442 
443     if (ctx->inputs[0]->frame_rate.num) {
444         qf->surface.Info.FrameRateExtN = ctx->inputs[0]->frame_rate.num;
445         qf->surface.Info.FrameRateExtD = ctx->inputs[0]->frame_rate.den;
446     } else {
447         qf->surface.Info.FrameRateExtN = ctx->inputs[0]->time_base.num;
448         qf->surface.Info.FrameRateExtD = ctx->inputs[0]->time_base.den;
449     }
450 
451     qf->surface.Data.TimeStamp = av_rescale_q(qf->frame->pts,
452                                               ctx->inputs[0]->time_base,
453                                               (AVRational){1, 90000});
454 
455     *surface = &qf->surface;
456     qf->used = 1;
457 
458     return 0;
459 }
460 
process_frame(AVFilterContext * ctx,const AVFrame * in,mfxFrameSurface1 * surf_in)461 static int process_frame(AVFilterContext *ctx, const AVFrame *in,
462                          mfxFrameSurface1 *surf_in)
463 {
464     QSVDeintContext    *s = ctx->priv;
465     AVFilterLink  *inlink = ctx->inputs[0];
466     AVFilterLink *outlink = ctx->outputs[0];
467 
468     AVFrame *out;
469     mfxFrameSurface1 *surf_out;
470     mfxSyncPoint sync = NULL;
471     mfxStatus err;
472     int ret, again = 0;
473 
474     out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
475     if (!out) {
476         ret = AVERROR(ENOMEM);
477         goto fail;
478     }
479 
480     surf_out = (mfxFrameSurface1*)out->data[3];
481     surf_out->Info.CropW     = outlink->w;
482     surf_out->Info.CropH     = outlink->h;
483     surf_out->Info.PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
484 
485     do {
486         err = MFXVideoVPP_RunFrameVPPAsync(s->session, surf_in, surf_out,
487                                            NULL, &sync);
488         if (err == MFX_WRN_DEVICE_BUSY)
489             av_usleep(1);
490     } while (err == MFX_WRN_DEVICE_BUSY);
491 
492     if (err == MFX_ERR_MORE_DATA) {
493         av_frame_free(&out);
494         return QSVDEINT_MORE_INPUT;
495     }
496 
497     if (err < 0 && err != MFX_ERR_MORE_SURFACE) {
498         ret = ff_qsvvpp_print_error(ctx, err, "Error during deinterlacing");
499         goto fail;
500     }
501 
502     if (!sync) {
503         av_log(ctx, AV_LOG_ERROR, "No sync during deinterlacing\n");
504         ret = AVERROR_UNKNOWN;
505         goto fail;
506     }
507     if (err == MFX_ERR_MORE_SURFACE)
508         again = 1;
509 
510     do {
511         err = MFXVideoCORE_SyncOperation(s->session, sync, 1000);
512     } while (err == MFX_WRN_IN_EXECUTION);
513     if (err < 0) {
514         ret = ff_qsvvpp_print_error(ctx, err, "Error synchronizing the operation");
515         goto fail;
516     }
517 
518     ret = av_frame_copy_props(out, in);
519     if (ret < 0)
520         goto fail;
521 
522     out->width            = outlink->w;
523     out->height           = outlink->h;
524     out->interlaced_frame = 0;
525 
526     out->pts = av_rescale_q(out->pts, inlink->time_base, outlink->time_base);
527     if (out->pts == s->last_pts)
528         out->pts++;
529     s->last_pts = out->pts;
530 
531     ret = ff_filter_frame(outlink, out);
532     if (ret < 0)
533         return ret;
534 
535     return again ? QSVDEINT_MORE_OUTPUT : 0;
536 fail:
537     av_frame_free(&out);
538     return ret;
539 }
540 
qsvdeint_filter_frame(AVFilterLink * link,AVFrame * in)541 static int qsvdeint_filter_frame(AVFilterLink *link, AVFrame *in)
542 {
543     AVFilterContext *ctx = link->dst;
544 
545     mfxFrameSurface1 *surf_in;
546     int ret;
547 
548     ret = submit_frame(ctx, in, &surf_in);
549     if (ret < 0) {
550         av_frame_free(&in);
551         return ret;
552     }
553 
554     do {
555         ret = process_frame(ctx, in, surf_in);
556         if (ret < 0)
557             return ret;
558     } while (ret == QSVDEINT_MORE_OUTPUT);
559 
560     return 0;
561 }
562 
qsvdeint_request_frame(AVFilterLink * outlink)563 static int qsvdeint_request_frame(AVFilterLink *outlink)
564 {
565     AVFilterContext *ctx = outlink->src;
566 
567     return ff_request_frame(ctx->inputs[0]);
568 }
569 
570 #define OFFSET(x) offsetof(QSVDeintContext, x)
571 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
572 static const AVOption options[] = {
573     { "mode", "set deinterlace mode", OFFSET(mode),   AV_OPT_TYPE_INT, {.i64 = MFX_DEINTERLACING_ADVANCED}, MFX_DEINTERLACING_BOB, MFX_DEINTERLACING_ADVANCED, FLAGS, "mode"},
574     { "bob",   "bob algorithm",                  0, AV_OPT_TYPE_CONST,      {.i64 = MFX_DEINTERLACING_BOB}, MFX_DEINTERLACING_BOB, MFX_DEINTERLACING_ADVANCED, FLAGS, "mode"},
575     { "advanced", "Motion adaptive algorithm",   0, AV_OPT_TYPE_CONST, {.i64 = MFX_DEINTERLACING_ADVANCED}, MFX_DEINTERLACING_BOB, MFX_DEINTERLACING_ADVANCED, FLAGS, "mode"},
576     { NULL },
577 };
578 
579 static const AVClass qsvdeint_class = {
580     .class_name = "deinterlace_qsv",
581     .item_name  = av_default_item_name,
582     .option     = options,
583     .version    = LIBAVUTIL_VERSION_INT,
584 };
585 
586 static const AVFilterPad qsvdeint_inputs[] = {
587     {
588         .name         = "default",
589         .type         = AVMEDIA_TYPE_VIDEO,
590         .filter_frame = qsvdeint_filter_frame,
591     },
592     { NULL }
593 };
594 
595 static const AVFilterPad qsvdeint_outputs[] = {
596     {
597         .name          = "default",
598         .type          = AVMEDIA_TYPE_VIDEO,
599         .config_props  = qsvdeint_config_props,
600         .request_frame = qsvdeint_request_frame,
601     },
602     { NULL }
603 };
604 
605 AVFilter ff_vf_deinterlace_qsv = {
606     .name      = "deinterlace_qsv",
607     .description = NULL_IF_CONFIG_SMALL("QuickSync video deinterlacing"),
608 
609     .uninit        = qsvdeint_uninit,
610     .query_formats = qsvdeint_query_formats,
611 
612     .priv_size = sizeof(QSVDeintContext),
613     .priv_class = &qsvdeint_class,
614 
615     .inputs    = qsvdeint_inputs,
616     .outputs   = qsvdeint_outputs,
617 
618     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
619 };
620