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 #include "libavutil/avassert.h"
20 #include "libavutil/common.h"
21 #include "libavutil/pixdesc.h"
22 
23 #include "avcodec.h"
24 #include "decode.h"
25 #include "internal.h"
26 #include "vaapi_decode.h"
27 
28 
ff_vaapi_decode_make_param_buffer(AVCodecContext * avctx,VAAPIDecodePicture * pic,int type,const void * data,size_t size)29 int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx,
30                                       VAAPIDecodePicture *pic,
31                                       int type,
32                                       const void *data,
33                                       size_t size)
34 {
35     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
36     VAStatus vas;
37     VABufferID buffer;
38 
39     av_assert0(pic->nb_param_buffers + 1 <= MAX_PARAM_BUFFERS);
40 
41     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
42                          type, size, 1, (void*)data, &buffer);
43     if (vas != VA_STATUS_SUCCESS) {
44         av_log(avctx, AV_LOG_ERROR, "Failed to create parameter "
45                "buffer (type %d): %d (%s).\n",
46                type, vas, vaErrorStr(vas));
47         return AVERROR(EIO);
48     }
49 
50     pic->param_buffers[pic->nb_param_buffers++] = buffer;
51 
52     av_log(avctx, AV_LOG_DEBUG, "Param buffer (type %d, %zu bytes) "
53            "is %#x.\n", type, size, buffer);
54     return 0;
55 }
56 
57 
ff_vaapi_decode_make_slice_buffer(AVCodecContext * avctx,VAAPIDecodePicture * pic,const void * params_data,size_t params_size,const void * slice_data,size_t slice_size)58 int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
59                                       VAAPIDecodePicture *pic,
60                                       const void *params_data,
61                                       size_t params_size,
62                                       const void *slice_data,
63                                       size_t slice_size)
64 {
65     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
66     VAStatus vas;
67     int index;
68 
69     av_assert0(pic->nb_slices <= pic->slices_allocated);
70     if (pic->nb_slices == pic->slices_allocated) {
71         if (pic->slices_allocated > 0)
72             pic->slices_allocated *= 2;
73         else
74             pic->slices_allocated = 64;
75 
76         pic->slice_buffers =
77             av_realloc_array(pic->slice_buffers,
78                              pic->slices_allocated,
79                              2 * sizeof(*pic->slice_buffers));
80         if (!pic->slice_buffers)
81             return AVERROR(ENOMEM);
82     }
83     av_assert0(pic->nb_slices + 1 <= pic->slices_allocated);
84 
85     index = 2 * pic->nb_slices;
86 
87     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
88                          VASliceParameterBufferType,
89                          params_size, 1, (void*)params_data,
90                          &pic->slice_buffers[index]);
91     if (vas != VA_STATUS_SUCCESS) {
92         av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
93                "parameter buffer: %d (%s).\n", vas, vaErrorStr(vas));
94         return AVERROR(EIO);
95     }
96 
97     av_log(avctx, AV_LOG_DEBUG, "Slice %d param buffer (%zu bytes) "
98            "is %#x.\n", pic->nb_slices, params_size,
99            pic->slice_buffers[index]);
100 
101     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
102                          VASliceDataBufferType,
103                          slice_size, 1, (void*)slice_data,
104                          &pic->slice_buffers[index + 1]);
105     if (vas != VA_STATUS_SUCCESS) {
106         av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
107                "data buffer (size %zu): %d (%s).\n",
108                slice_size, vas, vaErrorStr(vas));
109         vaDestroyBuffer(ctx->hwctx->display,
110                         pic->slice_buffers[index]);
111         return AVERROR(EIO);
112     }
113 
114     av_log(avctx, AV_LOG_DEBUG, "Slice %d data buffer (%zu bytes) "
115            "is %#x.\n", pic->nb_slices, slice_size,
116            pic->slice_buffers[index + 1]);
117 
118     ++pic->nb_slices;
119     return 0;
120 }
121 
ff_vaapi_decode_destroy_buffers(AVCodecContext * avctx,VAAPIDecodePicture * pic)122 static void ff_vaapi_decode_destroy_buffers(AVCodecContext *avctx,
123                                             VAAPIDecodePicture *pic)
124 {
125     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
126     VAStatus vas;
127     int i;
128 
129     for (i = 0; i < pic->nb_param_buffers; i++) {
130         vas = vaDestroyBuffer(ctx->hwctx->display,
131                               pic->param_buffers[i]);
132         if (vas != VA_STATUS_SUCCESS) {
133             av_log(avctx, AV_LOG_ERROR, "Failed to destroy "
134                    "parameter buffer %#x: %d (%s).\n",
135                    pic->param_buffers[i], vas, vaErrorStr(vas));
136         }
137     }
138 
139     for (i = 0; i < 2 * pic->nb_slices; i++) {
140         vas = vaDestroyBuffer(ctx->hwctx->display,
141                               pic->slice_buffers[i]);
142         if (vas != VA_STATUS_SUCCESS) {
143             av_log(avctx, AV_LOG_ERROR, "Failed to destroy slice "
144                    "slice buffer %#x: %d (%s).\n",
145                    pic->slice_buffers[i], vas, vaErrorStr(vas));
146         }
147     }
148 }
149 
ff_vaapi_decode_issue(AVCodecContext * avctx,VAAPIDecodePicture * pic)150 int ff_vaapi_decode_issue(AVCodecContext *avctx,
151                           VAAPIDecodePicture *pic)
152 {
153     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
154     VAStatus vas;
155     int err;
156 
157     av_log(avctx, AV_LOG_DEBUG, "Decode to surface %#x.\n",
158            pic->output_surface);
159 
160     vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
161                          pic->output_surface);
162     if (vas != VA_STATUS_SUCCESS) {
163         av_log(avctx, AV_LOG_ERROR, "Failed to begin picture decode "
164                "issue: %d (%s).\n", vas, vaErrorStr(vas));
165         err = AVERROR(EIO);
166         goto fail_with_picture;
167     }
168 
169     vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
170                           pic->param_buffers, pic->nb_param_buffers);
171     if (vas != VA_STATUS_SUCCESS) {
172         av_log(avctx, AV_LOG_ERROR, "Failed to upload decode "
173                "parameters: %d (%s).\n", vas, vaErrorStr(vas));
174         err = AVERROR(EIO);
175         goto fail_with_picture;
176     }
177 
178     vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
179                           pic->slice_buffers, 2 * pic->nb_slices);
180     if (vas != VA_STATUS_SUCCESS) {
181         av_log(avctx, AV_LOG_ERROR, "Failed to upload slices: "
182                "%d (%s).\n", vas, vaErrorStr(vas));
183         err = AVERROR(EIO);
184         goto fail_with_picture;
185     }
186 
187     vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
188     if (vas != VA_STATUS_SUCCESS) {
189         av_log(avctx, AV_LOG_ERROR, "Failed to end picture decode "
190                "issue: %d (%s).\n", vas, vaErrorStr(vas));
191         err = AVERROR(EIO);
192         if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
193             AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS)
194             goto fail;
195         else
196             goto fail_at_end;
197     }
198 
199     if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
200         AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS)
201         ff_vaapi_decode_destroy_buffers(avctx, pic);
202 
203     err = 0;
204     goto exit;
205 
206 fail_with_picture:
207     vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
208     if (vas != VA_STATUS_SUCCESS) {
209         av_log(avctx, AV_LOG_ERROR, "Failed to end picture decode "
210                "after error: %d (%s).\n", vas, vaErrorStr(vas));
211     }
212 fail:
213     ff_vaapi_decode_destroy_buffers(avctx, pic);
214 fail_at_end:
215 exit:
216     pic->nb_param_buffers = 0;
217     pic->nb_slices        = 0;
218     pic->slices_allocated = 0;
219     av_freep(&pic->slice_buffers);
220 
221     return err;
222 }
223 
ff_vaapi_decode_cancel(AVCodecContext * avctx,VAAPIDecodePicture * pic)224 int ff_vaapi_decode_cancel(AVCodecContext *avctx,
225                            VAAPIDecodePicture *pic)
226 {
227     ff_vaapi_decode_destroy_buffers(avctx, pic);
228 
229     pic->nb_param_buffers = 0;
230     pic->nb_slices        = 0;
231     pic->slices_allocated = 0;
232     av_freep(&pic->slice_buffers);
233 
234     return 0;
235 }
236 
237 static const struct {
238     uint32_t fourcc;
239     enum AVPixelFormat pix_fmt;
240 } vaapi_format_map[] = {
241 #define MAP(va, av) { VA_FOURCC_ ## va, AV_PIX_FMT_ ## av }
242     // 4:0:0
243     MAP(Y800, GRAY8),
244     // 4:2:0
245     MAP(NV12, NV12),
246     MAP(YV12, YUV420P),
247     MAP(IYUV, YUV420P),
248 #ifdef VA_FOURCC_I420
249     MAP(I420, YUV420P),
250 #endif
251     MAP(IMC3, YUV420P),
252     // 4:1:1
253     MAP(411P, YUV411P),
254     // 4:2:2
255     MAP(422H, YUV422P),
256 #ifdef VA_FOURCC_YV16
257     MAP(YV16, YUV422P),
258 #endif
259     // 4:4:0
260     MAP(422V, YUV440P),
261     // 4:4:4
262     MAP(444P, YUV444P),
263     // 4:2:0 10-bit
264 #ifdef VA_FOURCC_P010
265     MAP(P010, P010),
266 #endif
267 #ifdef VA_FOURCC_I010
268     MAP(I010, YUV420P10),
269 #endif
270 #undef MAP
271 };
272 
vaapi_decode_find_best_format(AVCodecContext * avctx,AVHWDeviceContext * device,VAConfigID config_id,AVHWFramesContext * frames)273 static int vaapi_decode_find_best_format(AVCodecContext *avctx,
274                                          AVHWDeviceContext *device,
275                                          VAConfigID config_id,
276                                          AVHWFramesContext *frames)
277 {
278     AVVAAPIDeviceContext *hwctx = device->hwctx;
279     VAStatus vas;
280     VASurfaceAttrib *attr;
281     enum AVPixelFormat source_format, best_format, format;
282     uint32_t best_fourcc, fourcc;
283     int i, j, nb_attr;
284 
285     source_format = avctx->sw_pix_fmt;
286     av_assert0(source_format != AV_PIX_FMT_NONE);
287 
288     vas = vaQuerySurfaceAttributes(hwctx->display, config_id,
289                                    NULL, &nb_attr);
290     if (vas != VA_STATUS_SUCCESS) {
291         av_log(avctx, AV_LOG_ERROR, "Failed to query surface attributes: "
292                "%d (%s).\n", vas, vaErrorStr(vas));
293         return AVERROR(ENOSYS);
294     }
295 
296     attr = av_malloc_array(nb_attr, sizeof(*attr));
297     if (!attr)
298         return AVERROR(ENOMEM);
299 
300     vas = vaQuerySurfaceAttributes(hwctx->display, config_id,
301                                    attr, &nb_attr);
302     if (vas != VA_STATUS_SUCCESS) {
303         av_log(avctx, AV_LOG_ERROR, "Failed to query surface attributes: "
304                "%d (%s).\n", vas, vaErrorStr(vas));
305         av_freep(&attr);
306         return AVERROR(ENOSYS);
307     }
308 
309     best_format = AV_PIX_FMT_NONE;
310 
311     for (i = 0; i < nb_attr; i++) {
312         if (attr[i].type != VASurfaceAttribPixelFormat)
313             continue;
314 
315         fourcc = attr[i].value.value.i;
316         for (j = 0; j < FF_ARRAY_ELEMS(vaapi_format_map); j++) {
317             if (fourcc == vaapi_format_map[j].fourcc)
318                 break;
319         }
320         if (j >= FF_ARRAY_ELEMS(vaapi_format_map)) {
321             av_log(avctx, AV_LOG_DEBUG, "Ignoring unknown format %#x.\n",
322                    fourcc);
323             continue;
324         }
325         format = vaapi_format_map[j].pix_fmt;
326         av_log(avctx, AV_LOG_DEBUG, "Considering format %#x -> %s.\n",
327                fourcc, av_get_pix_fmt_name(format));
328 
329         best_format = av_find_best_pix_fmt_of_2(format, best_format,
330                                                 source_format, 0, NULL);
331         if (format == best_format)
332             best_fourcc = fourcc;
333     }
334 
335     av_freep(&attr);
336 
337     if (best_format == AV_PIX_FMT_NONE) {
338         av_log(avctx, AV_LOG_ERROR, "No usable formats for decoding!\n");
339         return AVERROR(EINVAL);
340     }
341 
342     av_log(avctx, AV_LOG_DEBUG, "Picked %s (%#x) as best match for %s.\n",
343            av_get_pix_fmt_name(best_format), best_fourcc,
344            av_get_pix_fmt_name(source_format));
345 
346     frames->sw_format = best_format;
347     if (avctx->internal->hwaccel_priv_data) {
348         VAAPIDecodeContext    *ctx = avctx->internal->hwaccel_priv_data;
349         AVVAAPIFramesContext *avfc = frames->hwctx;
350 
351         ctx->pixel_format_attribute = (VASurfaceAttrib) {
352             .type          = VASurfaceAttribPixelFormat,
353             .value.value.i = best_fourcc,
354         };
355 
356         avfc->attributes    = &ctx->pixel_format_attribute;
357         avfc->nb_attributes = 1;
358     }
359 
360     return 0;
361 }
362 
363 static const struct {
364     enum AVCodecID codec_id;
365     int codec_profile;
366     VAProfile va_profile;
367 } vaapi_profile_map[] = {
368 #define MAP(c, p, v) { AV_CODEC_ID_ ## c, FF_PROFILE_ ## p, VAProfile ## v }
369     MAP(MPEG2VIDEO,  MPEG2_SIMPLE,    MPEG2Simple ),
370     MAP(MPEG2VIDEO,  MPEG2_MAIN,      MPEG2Main   ),
371     MAP(H263,        UNKNOWN,         H263Baseline),
372     MAP(MPEG4,       MPEG4_SIMPLE,    MPEG4Simple ),
373     MAP(MPEG4,       MPEG4_ADVANCED_SIMPLE,
374                                MPEG4AdvancedSimple),
375     MAP(MPEG4,       MPEG4_MAIN,      MPEG4Main   ),
376     MAP(H264,        H264_CONSTRAINED_BASELINE,
377                            H264ConstrainedBaseline),
378     MAP(H264,        H264_MAIN,       H264Main    ),
379     MAP(H264,        H264_HIGH,       H264High    ),
380 #if VA_CHECK_VERSION(0, 37, 0)
381     MAP(HEVC,        HEVC_MAIN,       HEVCMain    ),
382     MAP(HEVC,        HEVC_MAIN_10,    HEVCMain10  ),
383 #endif
384     MAP(MJPEG,       MJPEG_HUFFMAN_BASELINE_DCT,
385                                       JPEGBaseline),
386     MAP(WMV3,        VC1_SIMPLE,      VC1Simple   ),
387     MAP(WMV3,        VC1_MAIN,        VC1Main     ),
388     MAP(WMV3,        VC1_COMPLEX,     VC1Advanced ),
389     MAP(WMV3,        VC1_ADVANCED,    VC1Advanced ),
390     MAP(VC1,         VC1_SIMPLE,      VC1Simple   ),
391     MAP(VC1,         VC1_MAIN,        VC1Main     ),
392     MAP(VC1,         VC1_COMPLEX,     VC1Advanced ),
393     MAP(VC1,         VC1_ADVANCED,    VC1Advanced ),
394     MAP(VP8,         UNKNOWN,       VP8Version0_3 ),
395 #if VA_CHECK_VERSION(0, 38, 0)
396     MAP(VP9,         VP9_0,           VP9Profile0 ),
397 #endif
398 #if VA_CHECK_VERSION(0, 39, 0)
399     MAP(VP9,         VP9_2,           VP9Profile2 ),
400 #endif
401 #undef MAP
402 };
403 
404 /*
405  * Set *va_config and the frames_ref fields from the current codec parameters
406  * in avctx.
407  */
vaapi_decode_make_config(AVCodecContext * avctx,AVBufferRef * device_ref,VAConfigID * va_config,AVBufferRef * frames_ref)408 static int vaapi_decode_make_config(AVCodecContext *avctx,
409                                     AVBufferRef *device_ref,
410                                     VAConfigID *va_config,
411                                     AVBufferRef *frames_ref)
412 {
413     AVVAAPIHWConfig       *hwconfig    = NULL;
414     AVHWFramesConstraints *constraints = NULL;
415     VAStatus vas;
416     int err, i, j;
417     const AVCodecDescriptor *codec_desc;
418     VAProfile *profile_list = NULL, matched_va_profile;
419     int profile_count, exact_match, matched_ff_profile;
420 
421     AVHWDeviceContext    *device = (AVHWDeviceContext*)device_ref->data;
422     AVVAAPIDeviceContext *hwctx = device->hwctx;
423 
424     codec_desc = avcodec_descriptor_get(avctx->codec_id);
425     if (!codec_desc) {
426         err = AVERROR(EINVAL);
427         goto fail;
428     }
429 
430     profile_count = vaMaxNumProfiles(hwctx->display);
431     profile_list  = av_malloc_array(profile_count,
432                                     sizeof(VAProfile));
433     if (!profile_list) {
434         err = AVERROR(ENOMEM);
435         goto fail;
436     }
437 
438     vas = vaQueryConfigProfiles(hwctx->display,
439                                 profile_list, &profile_count);
440     if (vas != VA_STATUS_SUCCESS) {
441         av_log(avctx, AV_LOG_ERROR, "Failed to query profiles: "
442                "%d (%s).\n", vas, vaErrorStr(vas));
443         err = AVERROR(ENOSYS);
444         goto fail;
445     }
446 
447     matched_va_profile = VAProfileNone;
448     exact_match = 0;
449 
450     for (i = 0; i < FF_ARRAY_ELEMS(vaapi_profile_map); i++) {
451         int profile_match = 0;
452         if (avctx->codec_id != vaapi_profile_map[i].codec_id)
453             continue;
454         if (avctx->profile == vaapi_profile_map[i].codec_profile ||
455             vaapi_profile_map[i].codec_profile == FF_PROFILE_UNKNOWN)
456             profile_match = 1;
457         for (j = 0; j < profile_count; j++) {
458             if (vaapi_profile_map[i].va_profile == profile_list[j]) {
459                 exact_match = profile_match;
460                 break;
461             }
462         }
463         if (j < profile_count) {
464             matched_va_profile = vaapi_profile_map[i].va_profile;
465             matched_ff_profile = vaapi_profile_map[i].codec_profile;
466             if (exact_match)
467                 break;
468         }
469     }
470     av_freep(&profile_list);
471 
472     if (matched_va_profile == VAProfileNone) {
473         av_log(avctx, AV_LOG_ERROR, "No support for codec %s "
474                "profile %d.\n", codec_desc->name, avctx->profile);
475         err = AVERROR(ENOSYS);
476         goto fail;
477     }
478     if (!exact_match) {
479         if (avctx->hwaccel_flags &
480             AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH) {
481             av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not "
482                    "supported for hardware decode.\n",
483                    codec_desc->name, avctx->profile);
484             av_log(avctx, AV_LOG_WARNING, "Using possibly-"
485                    "incompatible profile %d instead.\n",
486                    matched_ff_profile);
487         } else {
488             av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not "
489                    "supported for hardware decode.\n",
490                    codec_desc->name, avctx->profile);
491             err = AVERROR(EINVAL);
492             goto fail;
493         }
494     }
495 
496     vas = vaCreateConfig(hwctx->display, matched_va_profile,
497                          VAEntrypointVLD, NULL, 0,
498                          va_config);
499     if (vas != VA_STATUS_SUCCESS) {
500         av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
501                "configuration: %d (%s).\n", vas, vaErrorStr(vas));
502         err = AVERROR(EIO);
503         goto fail;
504     }
505 
506     hwconfig = av_hwdevice_hwconfig_alloc(device_ref);
507     if (!hwconfig) {
508         err = AVERROR(ENOMEM);
509         goto fail;
510     }
511     hwconfig->config_id = *va_config;
512 
513     constraints =
514         av_hwdevice_get_hwframe_constraints(device_ref, hwconfig);
515     if (!constraints) {
516         err = AVERROR(ENOMEM);
517         goto fail;
518     }
519 
520     if (avctx->coded_width  < constraints->min_width  ||
521         avctx->coded_height < constraints->min_height ||
522         avctx->coded_width  > constraints->max_width  ||
523         avctx->coded_height > constraints->max_height) {
524         av_log(avctx, AV_LOG_ERROR, "Hardware does not support image "
525                "size %dx%d (constraints: width %d-%d height %d-%d).\n",
526                avctx->coded_width, avctx->coded_height,
527                constraints->min_width,  constraints->max_width,
528                constraints->min_height, constraints->max_height);
529         err = AVERROR(EINVAL);
530         goto fail;
531     }
532     if (!constraints->valid_sw_formats ||
533         constraints->valid_sw_formats[0] == AV_PIX_FMT_NONE) {
534         av_log(avctx, AV_LOG_ERROR, "Hardware does not offer any "
535                "usable surface formats.\n");
536         err = AVERROR(EINVAL);
537         goto fail;
538     }
539 
540     if (frames_ref) {
541         AVHWFramesContext *frames = (AVHWFramesContext *)frames_ref->data;
542 
543         frames->format = AV_PIX_FMT_VAAPI;
544         frames->width = avctx->coded_width;
545         frames->height = avctx->coded_height;
546 
547         err = vaapi_decode_find_best_format(avctx, device,
548                                             *va_config, frames);
549         if (err < 0)
550             goto fail;
551 
552         frames->initial_pool_size = 1;
553         // Add per-codec number of surfaces used for storing reference frames.
554         switch (avctx->codec_id) {
555         case AV_CODEC_ID_H264:
556         case AV_CODEC_ID_HEVC:
557             frames->initial_pool_size += 16;
558             break;
559         case AV_CODEC_ID_VP9:
560             frames->initial_pool_size += 8;
561             break;
562         case AV_CODEC_ID_VP8:
563             frames->initial_pool_size += 3;
564             break;
565         default:
566             frames->initial_pool_size += 2;
567         }
568     }
569 
570     av_hwframe_constraints_free(&constraints);
571     av_freep(&hwconfig);
572 
573     return 0;
574 
575 fail:
576     av_hwframe_constraints_free(&constraints);
577     av_freep(&hwconfig);
578     if (*va_config != VA_INVALID_ID) {
579         vaDestroyConfig(hwctx->display, *va_config);
580         *va_config = VA_INVALID_ID;
581     }
582     av_freep(&profile_list);
583     return err;
584 }
585 
ff_vaapi_common_frame_params(AVCodecContext * avctx,AVBufferRef * hw_frames_ctx)586 int ff_vaapi_common_frame_params(AVCodecContext *avctx,
587                                  AVBufferRef *hw_frames_ctx)
588 {
589     AVHWFramesContext *hw_frames = (AVHWFramesContext *)hw_frames_ctx->data;
590     AVHWDeviceContext *device_ctx = hw_frames->device_ctx;
591     AVVAAPIDeviceContext *hwctx;
592     VAConfigID va_config = VA_INVALID_ID;
593     int err;
594 
595     if (device_ctx->type != AV_HWDEVICE_TYPE_VAAPI)
596         return AVERROR(EINVAL);
597     hwctx = device_ctx->hwctx;
598 
599     err = vaapi_decode_make_config(avctx, hw_frames->device_ref, &va_config,
600                                    hw_frames_ctx);
601     if (err)
602         return err;
603 
604     if (va_config != VA_INVALID_ID)
605         vaDestroyConfig(hwctx->display, va_config);
606 
607     return 0;
608 }
609 
ff_vaapi_decode_init(AVCodecContext * avctx)610 int ff_vaapi_decode_init(AVCodecContext *avctx)
611 {
612     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
613     VAStatus vas;
614     int err;
615 
616     ctx->va_config  = VA_INVALID_ID;
617     ctx->va_context = VA_INVALID_ID;
618 
619 #if FF_API_STRUCT_VAAPI_CONTEXT
620     if (avctx->hwaccel_context) {
621         av_log(avctx, AV_LOG_WARNING, "Using deprecated struct "
622                "vaapi_context in decode.\n");
623 
624         ctx->have_old_context = 1;
625         ctx->old_context = avctx->hwaccel_context;
626 
627         // Really we only want the VAAPI device context, but this
628         // allocates a whole generic device context because we don't
629         // have any other way to determine how big it should be.
630         ctx->device_ref =
631             av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VAAPI);
632         if (!ctx->device_ref) {
633             err = AVERROR(ENOMEM);
634             goto fail;
635         }
636         ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
637         ctx->hwctx  = ctx->device->hwctx;
638 
639         ctx->hwctx->display = ctx->old_context->display;
640 
641         // The old VAAPI decode setup assumed this quirk was always
642         // present, so set it here to avoid the behaviour changing.
643         ctx->hwctx->driver_quirks =
644             AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS;
645 
646     }
647 #endif
648 
649 #if FF_API_STRUCT_VAAPI_CONTEXT
650     if (ctx->have_old_context) {
651         ctx->va_config  = ctx->old_context->config_id;
652         ctx->va_context = ctx->old_context->context_id;
653 
654         av_log(avctx, AV_LOG_DEBUG, "Using user-supplied decoder "
655                "context: %#x/%#x.\n", ctx->va_config, ctx->va_context);
656     } else {
657 #endif
658 
659     err = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_VAAPI);
660     if (err < 0)
661         goto fail;
662 
663     ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
664     ctx->hwfc   = ctx->frames->hwctx;
665     ctx->device = ctx->frames->device_ctx;
666     ctx->hwctx  = ctx->device->hwctx;
667 
668     err = vaapi_decode_make_config(avctx, ctx->frames->device_ref,
669                                    &ctx->va_config, avctx->hw_frames_ctx);
670     if (err)
671         goto fail;
672 
673     vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
674                           avctx->coded_width, avctx->coded_height,
675                           VA_PROGRESSIVE,
676                           ctx->hwfc->surface_ids,
677                           ctx->hwfc->nb_surfaces,
678                           &ctx->va_context);
679     if (vas != VA_STATUS_SUCCESS) {
680         av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
681                "context: %d (%s).\n", vas, vaErrorStr(vas));
682         err = AVERROR(EIO);
683         goto fail;
684     }
685 
686     av_log(avctx, AV_LOG_DEBUG, "Decode context initialised: "
687            "%#x/%#x.\n", ctx->va_config, ctx->va_context);
688 #if FF_API_STRUCT_VAAPI_CONTEXT
689     }
690 #endif
691 
692     return 0;
693 
694 fail:
695     ff_vaapi_decode_uninit(avctx);
696     return err;
697 }
698 
ff_vaapi_decode_uninit(AVCodecContext * avctx)699 int ff_vaapi_decode_uninit(AVCodecContext *avctx)
700 {
701     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
702     VAStatus vas;
703 
704 #if FF_API_STRUCT_VAAPI_CONTEXT
705     if (ctx->have_old_context) {
706         av_buffer_unref(&ctx->device_ref);
707     } else {
708 #endif
709 
710     if (ctx->va_context != VA_INVALID_ID) {
711         vas = vaDestroyContext(ctx->hwctx->display, ctx->va_context);
712         if (vas != VA_STATUS_SUCCESS) {
713             av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode "
714                    "context %#x: %d (%s).\n",
715                    ctx->va_context, vas, vaErrorStr(vas));
716         }
717     }
718     if (ctx->va_config != VA_INVALID_ID) {
719         vas = vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
720         if (vas != VA_STATUS_SUCCESS) {
721             av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode "
722                    "configuration %#x: %d (%s).\n",
723                    ctx->va_config, vas, vaErrorStr(vas));
724         }
725     }
726 
727 #if FF_API_STRUCT_VAAPI_CONTEXT
728     }
729 #endif
730 
731     return 0;
732 }
733