f31172de29a3af43a5a77e8c69bdbfc1a7276bd8
[libav.git] / libavcodec / qsvdec.c
1 /*
2 * Intel MediaSDK QSV codec-independent code
3 *
4 * copyright (c) 2013 Luca Barbato
5 * copyright (c) 2015 Anton Khirnov <anton@khirnov.net>
6 *
7 * This file is part of Libav.
8 *
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include <string.h>
25 #include <sys/types.h>
26
27 #include <mfx/mfxvideo.h>
28
29 #include "libavutil/common.h"
30 #include "libavutil/hwcontext.h"
31 #include "libavutil/hwcontext_qsv.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/log.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/pixfmt.h"
36 #include "libavutil/time.h"
37
38 #include "avcodec.h"
39 #include "internal.h"
40 #include "qsv.h"
41 #include "qsv_internal.h"
42 #include "qsvdec.h"
43
44 const AVCodecHWConfigInternal *ff_qsv_hw_configs[] = {
45 &(const AVCodecHWConfigInternal) {
46 .public = {
47 .pix_fmt = AV_PIX_FMT_QSV,
48 .methods = AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX |
49 AV_CODEC_HW_CONFIG_METHOD_AD_HOC,
50 .device_type = AV_HWDEVICE_TYPE_QSV,
51 },
52 .hwaccel = NULL,
53 },
54 NULL
55 };
56
57 static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession session,
58 AVBufferRef *hw_frames_ref, AVBufferRef *hw_device_ref)
59 {
60 int ret;
61
62 if (session) {
63 q->session = session;
64 } else if (hw_frames_ref) {
65 if (q->internal_session) {
66 MFXClose(q->internal_session);
67 q->internal_session = NULL;
68 }
69 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
70
71 q->frames_ctx.hw_frames_ctx = av_buffer_ref(hw_frames_ref);
72 if (!q->frames_ctx.hw_frames_ctx)
73 return AVERROR(ENOMEM);
74
75 ret = ff_qsv_init_session_frames(avctx, &q->internal_session,
76 &q->frames_ctx, q->load_plugins,
77 q->iopattern == MFX_IOPATTERN_OUT_OPAQUE_MEMORY);
78 if (ret < 0) {
79 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
80 return ret;
81 }
82
83 q->session = q->internal_session;
84 } else if (hw_device_ref) {
85 if (q->internal_session) {
86 MFXClose(q->internal_session);
87 q->internal_session = NULL;
88 }
89
90 ret = ff_qsv_init_session_device(avctx, &q->internal_session,
91 hw_device_ref, q->load_plugins);
92 if (ret < 0)
93 return ret;
94
95 q->session = q->internal_session;
96 } else {
97 if (!q->internal_session) {
98 ret = ff_qsv_init_internal_session(avctx, &q->internal_session,
99 q->load_plugins);
100 if (ret < 0)
101 return ret;
102 }
103
104 q->session = q->internal_session;
105 }
106
107 /* make sure the decoder is uninitialized */
108 MFXVideoDECODE_Close(q->session);
109
110 return 0;
111 }
112
113 static int qsv_decode_init(AVCodecContext *avctx, QSVContext *q)
114 {
115 const AVPixFmtDescriptor *desc;
116 mfxSession session = NULL;
117 int iopattern = 0;
118 mfxVideoParam param = { 0 };
119 int frame_width = avctx->coded_width;
120 int frame_height = avctx->coded_height;
121 int ret;
122
123 desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
124 if (!desc)
125 return AVERROR_BUG;
126
127 if (!q->async_fifo) {
128 q->async_fifo = av_fifo_alloc((1 + q->async_depth) *
129 (sizeof(mfxSyncPoint*) + sizeof(QSVFrame*)));
130 if (!q->async_fifo)
131 return AVERROR(ENOMEM);
132 }
133
134 if (avctx->pix_fmt == AV_PIX_FMT_QSV && avctx->hwaccel_context) {
135 AVQSVContext *user_ctx = avctx->hwaccel_context;
136 session = user_ctx->session;
137 iopattern = user_ctx->iopattern;
138 q->ext_buffers = user_ctx->ext_buffers;
139 q->nb_ext_buffers = user_ctx->nb_ext_buffers;
140 }
141
142 if (avctx->hw_frames_ctx) {
143 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
144 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
145
146 if (!iopattern) {
147 if (frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)
148 iopattern = MFX_IOPATTERN_OUT_OPAQUE_MEMORY;
149 else if (frames_hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)
150 iopattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY;
151 }
152 }
153
154 if (!iopattern)
155 iopattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
156 q->iopattern = iopattern;
157
158 ret = qsv_init_session(avctx, q, session, avctx->hw_frames_ctx, avctx->hw_device_ctx);
159 if (ret < 0) {
160 av_log(avctx, AV_LOG_ERROR, "Error initializing an MFX session\n");
161 return ret;
162 }
163
164 ret = ff_qsv_codec_id_to_mfx(avctx->codec_id);
165 if (ret < 0)
166 return ret;
167
168 param.mfx.CodecId = ret;
169 param.mfx.CodecProfile = ff_qsv_profile_to_mfx(avctx->codec_id, avctx->profile);
170 param.mfx.CodecLevel = avctx->level == FF_LEVEL_UNKNOWN ? MFX_LEVEL_UNKNOWN : avctx->level;
171
172 param.mfx.FrameInfo.BitDepthLuma = desc->comp[0].depth;
173 param.mfx.FrameInfo.BitDepthChroma = desc->comp[0].depth;
174 param.mfx.FrameInfo.Shift = desc->comp[0].depth > 8;
175 param.mfx.FrameInfo.FourCC = q->fourcc;
176 param.mfx.FrameInfo.Width = frame_width;
177 param.mfx.FrameInfo.Height = frame_height;
178 param.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
179
180 switch (avctx->field_order) {
181 case AV_FIELD_PROGRESSIVE:
182 param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
183 break;
184 case AV_FIELD_TT:
185 param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_FIELD_TFF;
186 break;
187 case AV_FIELD_BB:
188 param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_FIELD_BFF;
189 break;
190 default:
191 param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_UNKNOWN;
192 break;
193 }
194
195 param.IOPattern = q->iopattern;
196 param.AsyncDepth = q->async_depth;
197 param.ExtParam = q->ext_buffers;
198 param.NumExtParam = q->nb_ext_buffers;
199
200 ret = MFXVideoDECODE_Init(q->session, &param);
201 if (ret < 0)
202 return ff_qsv_print_error(avctx, ret,
203 "Error initializing the MFX video decoder");
204
205 q->frame_info = param.mfx.FrameInfo;
206
207 return 0;
208 }
209
210 static int alloc_frame(AVCodecContext *avctx, QSVContext *q, QSVFrame *frame)
211 {
212 int ret;
213
214 ret = ff_get_buffer(avctx, frame->frame, AV_GET_BUFFER_FLAG_REF);
215 if (ret < 0)
216 return ret;
217
218 if (frame->frame->format == AV_PIX_FMT_QSV) {
219 frame->surface = *(mfxFrameSurface1*)frame->frame->data[3];
220 } else {
221 frame->surface.Info = q->frame_info;
222
223 frame->surface.Data.PitchLow = frame->frame->linesize[0];
224 frame->surface.Data.Y = frame->frame->data[0];
225 frame->surface.Data.UV = frame->frame->data[1];
226 }
227
228 if (q->frames_ctx.mids) {
229 ret = ff_qsv_find_surface_idx(&q->frames_ctx, frame);
230 if (ret < 0)
231 return ret;
232
233 frame->surface.Data.MemId = &q->frames_ctx.mids[ret];
234 }
235
236 frame->used = 1;
237
238 return 0;
239 }
240
241 static void qsv_clear_unused_frames(QSVContext *q)
242 {
243 QSVFrame *cur = q->work_frames;
244 while (cur) {
245 if (cur->used && !cur->surface.Data.Locked && !cur->queued) {
246 cur->used = 0;
247 av_frame_unref(cur->frame);
248 }
249 cur = cur->next;
250 }
251 }
252
253 static int get_surface(AVCodecContext *avctx, QSVContext *q, mfxFrameSurface1 **surf)
254 {
255 QSVFrame *frame, **last;
256 int ret;
257
258 qsv_clear_unused_frames(q);
259
260 frame = q->work_frames;
261 last = &q->work_frames;
262 while (frame) {
263 if (!frame->used) {
264 ret = alloc_frame(avctx, q, frame);
265 if (ret < 0)
266 return ret;
267 *surf = &frame->surface;
268 return 0;
269 }
270
271 last = &frame->next;
272 frame = frame->next;
273 }
274
275 frame = av_mallocz(sizeof(*frame));
276 if (!frame)
277 return AVERROR(ENOMEM);
278 frame->frame = av_frame_alloc();
279 if (!frame->frame) {
280 av_freep(&frame);
281 return AVERROR(ENOMEM);
282 }
283 *last = frame;
284
285 ret = alloc_frame(avctx, q, frame);
286 if (ret < 0)
287 return ret;
288
289 *surf = &frame->surface;
290
291 return 0;
292 }
293
294 static QSVFrame *find_frame(QSVContext *q, mfxFrameSurface1 *surf)
295 {
296 QSVFrame *cur = q->work_frames;
297 while (cur) {
298 if (surf == &cur->surface)
299 return cur;
300 cur = cur->next;
301 }
302 return NULL;
303 }
304
305 static int qsv_decode(AVCodecContext *avctx, QSVContext *q,
306 AVFrame *frame, int *got_frame,
307 AVPacket *avpkt)
308 {
309 QSVFrame *out_frame;
310 mfxFrameSurface1 *insurf;
311 mfxFrameSurface1 *outsurf;
312 mfxSyncPoint *sync;
313 mfxBitstream bs = { { { 0 } } };
314 int ret;
315
316 if (avpkt->size) {
317 bs.Data = avpkt->data;
318 bs.DataLength = avpkt->size;
319 bs.MaxLength = bs.DataLength;
320 bs.TimeStamp = avpkt->pts;
321 }
322
323 sync = av_mallocz(sizeof(*sync));
324 if (!sync) {
325 av_freep(&sync);
326 return AVERROR(ENOMEM);
327 }
328
329 do {
330 ret = get_surface(avctx, q, &insurf);
331 if (ret < 0) {
332 av_freep(&sync);
333 return ret;
334 }
335
336 ret = MFXVideoDECODE_DecodeFrameAsync(q->session, avpkt->size ? &bs : NULL,
337 insurf, &outsurf, sync);
338 if (ret == MFX_WRN_DEVICE_BUSY)
339 av_usleep(1);
340
341 } while (ret == MFX_WRN_DEVICE_BUSY || ret == MFX_ERR_MORE_SURFACE);
342
343 if (ret != MFX_ERR_NONE &&
344 ret != MFX_ERR_MORE_DATA &&
345 ret != MFX_WRN_VIDEO_PARAM_CHANGED &&
346 ret != MFX_ERR_MORE_SURFACE) {
347 av_freep(&sync);
348 return ff_qsv_print_error(avctx, ret,
349 "Error during QSV decoding.");
350 }
351
352 /* make sure we do not enter an infinite loop if the SDK
353 * did not consume any data and did not return anything */
354 if (!*sync && !bs.DataOffset) {
355 bs.DataOffset = avpkt->size;
356 ++q->zero_consume_run;
357 if (q->zero_consume_run > 1)
358 ff_qsv_print_warning(avctx, ret, "A decode call did not consume any data");
359 } else {
360 q->zero_consume_run = 0;
361 }
362
363 if (*sync) {
364 QSVFrame *out_frame = find_frame(q, outsurf);
365
366 if (!out_frame) {
367 av_log(avctx, AV_LOG_ERROR,
368 "The returned surface does not correspond to any frame\n");
369 av_freep(&sync);
370 return AVERROR_BUG;
371 }
372
373 out_frame->queued = 1;
374 av_fifo_generic_write(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
375 av_fifo_generic_write(q->async_fifo, &sync, sizeof(sync), NULL);
376 } else {
377 av_freep(&sync);
378 }
379
380 if (!av_fifo_space(q->async_fifo) ||
381 (!avpkt->size && av_fifo_size(q->async_fifo))) {
382 AVFrame *src_frame;
383
384 av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
385 av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
386 out_frame->queued = 0;
387
388 if (avctx->pix_fmt != AV_PIX_FMT_QSV) {
389 do {
390 ret = MFXVideoCORE_SyncOperation(q->session, *sync, 1000);
391 } while (ret == MFX_WRN_IN_EXECUTION);
392 }
393
394 av_freep(&sync);
395
396 src_frame = out_frame->frame;
397
398 ret = av_frame_ref(frame, src_frame);
399 if (ret < 0)
400 return ret;
401
402 outsurf = &out_frame->surface;
403
404 #if FF_API_PKT_PTS
405 FF_DISABLE_DEPRECATION_WARNINGS
406 frame->pkt_pts = outsurf->Data.TimeStamp;
407 FF_ENABLE_DEPRECATION_WARNINGS
408 #endif
409 frame->pts = outsurf->Data.TimeStamp;
410
411 frame->repeat_pict =
412 outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_TRIPLING ? 4 :
413 outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_DOUBLING ? 2 :
414 outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_REPEATED ? 1 : 0;
415 frame->top_field_first =
416 outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_TFF;
417 frame->interlaced_frame =
418 !(outsurf->Info.PicStruct & MFX_PICSTRUCT_PROGRESSIVE);
419
420 /* update the surface properties */
421 if (avctx->pix_fmt == AV_PIX_FMT_QSV)
422 ((mfxFrameSurface1*)frame->data[3])->Info = outsurf->Info;
423
424 *got_frame = 1;
425 }
426
427 return bs.DataOffset;
428 }
429
430 int ff_qsv_decode_close(QSVContext *q)
431 {
432 QSVFrame *cur = q->work_frames;
433
434 if (q->session)
435 MFXVideoDECODE_Close(q->session);
436
437 while (q->async_fifo && av_fifo_size(q->async_fifo)) {
438 QSVFrame *out_frame;
439 mfxSyncPoint *sync;
440
441 av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
442 av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
443
444 av_freep(&sync);
445 }
446
447 while (cur) {
448 q->work_frames = cur->next;
449 av_frame_free(&cur->frame);
450 av_freep(&cur);
451 cur = q->work_frames;
452 }
453
454 av_fifo_free(q->async_fifo);
455 q->async_fifo = NULL;
456
457 av_parser_close(q->parser);
458 avcodec_free_context(&q->avctx_internal);
459
460 if (q->internal_session)
461 MFXClose(q->internal_session);
462
463 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
464 av_buffer_unref(&q->frames_ctx.mids_buf);
465
466 return 0;
467 }
468
469 int ff_qsv_process_data(AVCodecContext *avctx, QSVContext *q,
470 AVFrame *frame, int *got_frame, AVPacket *pkt)
471 {
472 uint8_t *dummy_data;
473 int dummy_size;
474 int ret;
475 const AVPixFmtDescriptor *desc;
476
477 if (!q->avctx_internal) {
478 q->avctx_internal = avcodec_alloc_context3(NULL);
479 if (!q->avctx_internal)
480 return AVERROR(ENOMEM);
481
482 if (avctx->extradata) {
483 q->avctx_internal->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
484 if (!q->avctx_internal->extradata)
485 return AVERROR(ENOMEM);
486
487 memcpy(q->avctx_internal->extradata, avctx->extradata,
488 avctx->extradata_size);
489 q->avctx_internal->extradata_size = avctx->extradata_size;
490 }
491
492 q->parser = av_parser_init(avctx->codec_id);
493 if (!q->parser)
494 return AVERROR(ENOMEM);
495
496 q->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
497 q->orig_pix_fmt = AV_PIX_FMT_NONE;
498 }
499
500 if (!pkt->size)
501 return qsv_decode(avctx, q, frame, got_frame, pkt);
502
503 /* we assume the packets are already split properly and want
504 * just the codec parameters here */
505 av_parser_parse2(q->parser, q->avctx_internal,
506 &dummy_data, &dummy_size,
507 pkt->data, pkt->size, pkt->pts, pkt->dts,
508 pkt->pos);
509
510 /* TODO: flush delayed frames on reinit */
511 if (q->parser->format != q->orig_pix_fmt ||
512 FFALIGN(q->parser->coded_width, 16) != FFALIGN(avctx->coded_width, 16) ||
513 FFALIGN(q->parser->coded_height, 16) != FFALIGN(avctx->coded_height, 16)) {
514 enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_QSV,
515 AV_PIX_FMT_NONE,
516 AV_PIX_FMT_NONE };
517 enum AVPixelFormat qsv_format;
518
519 qsv_format = ff_qsv_map_pixfmt(q->parser->format, &q->fourcc);
520 if (qsv_format < 0) {
521 av_log(avctx, AV_LOG_ERROR,
522 "Decoding pixel format '%s' is not supported\n",
523 av_get_pix_fmt_name(q->parser->format));
524 ret = AVERROR(ENOSYS);
525 goto reinit_fail;
526 }
527
528 q->orig_pix_fmt = q->parser->format;
529 avctx->pix_fmt = pix_fmts[1] = qsv_format;
530 avctx->width = q->parser->width;
531 avctx->height = q->parser->height;
532 avctx->coded_width = FFALIGN(q->parser->coded_width, 16);
533 avctx->coded_height = FFALIGN(q->parser->coded_height, 16);
534 avctx->field_order = q->parser->field_order;
535 avctx->level = q->avctx_internal->level;
536 avctx->profile = q->avctx_internal->profile;
537
538 ret = ff_get_format(avctx, pix_fmts);
539 if (ret < 0)
540 goto reinit_fail;
541
542 avctx->pix_fmt = ret;
543
544 desc = av_pix_fmt_desc_get(avctx->pix_fmt);
545 if (!desc)
546 goto reinit_fail;
547
548 if (desc->comp[0].depth > 8) {
549 avctx->coded_width = FFALIGN(q->parser->coded_width, 32);
550 avctx->coded_height = FFALIGN(q->parser->coded_height, 32);
551 }
552
553 ret = qsv_decode_init(avctx, q);
554 if (ret < 0)
555 goto reinit_fail;
556 }
557
558 return qsv_decode(avctx, q, frame, got_frame, pkt);
559
560 reinit_fail:
561 q->orig_pix_fmt = q->parser->format = avctx->pix_fmt = AV_PIX_FMT_NONE;
562 return ret;
563 }
564
565 void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q)
566 {
567 q->orig_pix_fmt = AV_PIX_FMT_NONE;
568 }