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path: root/libavcodec/cuvid.c (plain)
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1/*
2 * Nvidia CUVID decoder
3 * Copyright (c) 2016 Timo Rothenpieler <timo@rothenpieler.org>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "compat/cuda/dynlink_loader.h"
23
24#include "libavutil/buffer.h"
25#include "libavutil/mathematics.h"
26#include "libavutil/hwcontext.h"
27#include "libavutil/hwcontext_cuda_internal.h"
28#include "libavutil/fifo.h"
29#include "libavutil/log.h"
30#include "libavutil/opt.h"
31#include "libavutil/pixdesc.h"
32
33#include "avcodec.h"
34#include "internal.h"
35
36typedef struct CuvidContext
37{
38 AVClass *avclass;
39
40 CUvideodecoder cudecoder;
41 CUvideoparser cuparser;
42
43 char *cu_gpu;
44 int nb_surfaces;
45 int drop_second_field;
46 char *crop_expr;
47 char *resize_expr;
48
49 struct {
50 int left;
51 int top;
52 int right;
53 int bottom;
54 } crop;
55
56 struct {
57 int width;
58 int height;
59 } resize;
60
61 AVBufferRef *hwdevice;
62 AVBufferRef *hwframe;
63
64 AVBSFContext *bsf;
65
66 AVFifoBuffer *frame_queue;
67
68 int deint_mode;
69 int deint_mode_current;
70 int64_t prev_pts;
71
72 int internal_error;
73 int decoder_flushing;
74
75 cudaVideoCodec codec_type;
76 cudaVideoChromaFormat chroma_format;
77
78 CUVIDPARSERPARAMS cuparseinfo;
79 CUVIDEOFORMATEX cuparse_ext;
80
81 CudaFunctions *cudl;
82 CuvidFunctions *cvdl;
83} CuvidContext;
84
85typedef struct CuvidParsedFrame
86{
87 CUVIDPARSERDISPINFO dispinfo;
88 int second_field;
89 int is_deinterlacing;
90} CuvidParsedFrame;
91
92static int check_cu(AVCodecContext *avctx, CUresult err, const char *func)
93{
94 CuvidContext *ctx = avctx->priv_data;
95 const char *err_name;
96 const char *err_string;
97
98 av_log(avctx, AV_LOG_TRACE, "Calling %s\n", func);
99
100 if (err == CUDA_SUCCESS)
101 return 0;
102
103 ctx->cudl->cuGetErrorName(err, &err_name);
104 ctx->cudl->cuGetErrorString(err, &err_string);
105
106 av_log(avctx, AV_LOG_ERROR, "%s failed", func);
107 if (err_name && err_string)
108 av_log(avctx, AV_LOG_ERROR, " -> %s: %s", err_name, err_string);
109 av_log(avctx, AV_LOG_ERROR, "\n");
110
111 return AVERROR_EXTERNAL;
112}
113
114#define CHECK_CU(x) check_cu(avctx, (x), #x)
115
116static int CUDAAPI cuvid_handle_video_sequence(void *opaque, CUVIDEOFORMAT* format)
117{
118 AVCodecContext *avctx = opaque;
119 CuvidContext *ctx = avctx->priv_data;
120 AVHWFramesContext *hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
121 CUVIDDECODECREATEINFO cuinfo;
122 int surface_fmt;
123
124 int old_width = avctx->width;
125 int old_height = avctx->height;
126
127 enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_CUDA,
128 AV_PIX_FMT_NONE, // Will be updated below
129 AV_PIX_FMT_NONE };
130
131 av_log(avctx, AV_LOG_TRACE, "pfnSequenceCallback, progressive_sequence=%d\n", format->progressive_sequence);
132
133 memset(&cuinfo, 0, sizeof(cuinfo));
134
135 ctx->internal_error = 0;
136
137 avctx->coded_width = cuinfo.ulWidth = format->coded_width;
138 avctx->coded_height = cuinfo.ulHeight = format->coded_height;
139
140 // apply cropping
141 cuinfo.display_area.left = format->display_area.left + ctx->crop.left;
142 cuinfo.display_area.top = format->display_area.top + ctx->crop.top;
143 cuinfo.display_area.right = format->display_area.right - ctx->crop.right;
144 cuinfo.display_area.bottom = format->display_area.bottom - ctx->crop.bottom;
145
146 // width and height need to be set before calling ff_get_format
147 if (ctx->resize_expr) {
148 avctx->width = ctx->resize.width;
149 avctx->height = ctx->resize.height;
150 } else {
151 avctx->width = cuinfo.display_area.right - cuinfo.display_area.left;
152 avctx->height = cuinfo.display_area.bottom - cuinfo.display_area.top;
153 }
154
155 // target width/height need to be multiples of two
156 cuinfo.ulTargetWidth = avctx->width = (avctx->width + 1) & ~1;
157 cuinfo.ulTargetHeight = avctx->height = (avctx->height + 1) & ~1;
158
159 // aspect ratio conversion, 1:1, depends on scaled resolution
160 cuinfo.target_rect.left = 0;
161 cuinfo.target_rect.top = 0;
162 cuinfo.target_rect.right = cuinfo.ulTargetWidth;
163 cuinfo.target_rect.bottom = cuinfo.ulTargetHeight;
164
165 switch (format->bit_depth_luma_minus8) {
166 case 0: // 8-bit
167 pix_fmts[1] = AV_PIX_FMT_NV12;
168 break;
169 case 2: // 10-bit
170 pix_fmts[1] = AV_PIX_FMT_P010;
171 break;
172 case 4: // 12-bit
173 pix_fmts[1] = AV_PIX_FMT_P016;
174 break;
175 default:
176 av_log(avctx, AV_LOG_ERROR, "unsupported bit depth: %d\n",
177 format->bit_depth_luma_minus8 + 8);
178 ctx->internal_error = AVERROR(EINVAL);
179 return 0;
180 }
181 surface_fmt = ff_get_format(avctx, pix_fmts);
182 if (surface_fmt < 0) {
183 av_log(avctx, AV_LOG_ERROR, "ff_get_format failed: %d\n", surface_fmt);
184 ctx->internal_error = AVERROR(EINVAL);
185 return 0;
186 }
187
188 av_log(avctx, AV_LOG_VERBOSE, "Formats: Original: %s | HW: %s | SW: %s\n",
189 av_get_pix_fmt_name(avctx->pix_fmt),
190 av_get_pix_fmt_name(surface_fmt),
191 av_get_pix_fmt_name(avctx->sw_pix_fmt));
192
193 avctx->pix_fmt = surface_fmt;
194
195 // Update our hwframe ctx, as the get_format callback might have refreshed it!
196 if (avctx->hw_frames_ctx) {
197 av_buffer_unref(&ctx->hwframe);
198
199 ctx->hwframe = av_buffer_ref(avctx->hw_frames_ctx);
200 if (!ctx->hwframe) {
201 ctx->internal_error = AVERROR(ENOMEM);
202 return 0;
203 }
204
205 hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
206 }
207
208 ff_set_sar(avctx, av_div_q(
209 (AVRational){ format->display_aspect_ratio.x, format->display_aspect_ratio.y },
210 (AVRational){ avctx->width, avctx->height }));
211
212 ctx->deint_mode_current = format->progressive_sequence
213 ? cudaVideoDeinterlaceMode_Weave
214 : ctx->deint_mode;
215
216 if (!format->progressive_sequence && ctx->deint_mode_current == cudaVideoDeinterlaceMode_Weave)
217 avctx->flags |= AV_CODEC_FLAG_INTERLACED_DCT;
218 else
219 avctx->flags &= ~AV_CODEC_FLAG_INTERLACED_DCT;
220
221 if (format->video_signal_description.video_full_range_flag)
222 avctx->color_range = AVCOL_RANGE_JPEG;
223 else
224 avctx->color_range = AVCOL_RANGE_MPEG;
225
226 avctx->color_primaries = format->video_signal_description.color_primaries;
227 avctx->color_trc = format->video_signal_description.transfer_characteristics;
228 avctx->colorspace = format->video_signal_description.matrix_coefficients;
229
230 if (format->bitrate)
231 avctx->bit_rate = format->bitrate;
232
233 if (format->frame_rate.numerator && format->frame_rate.denominator) {
234 avctx->framerate.num = format->frame_rate.numerator;
235 avctx->framerate.den = format->frame_rate.denominator;
236 }
237
238 if (ctx->cudecoder
239 && avctx->coded_width == format->coded_width
240 && avctx->coded_height == format->coded_height
241 && avctx->width == old_width
242 && avctx->height == old_height
243 && ctx->chroma_format == format->chroma_format
244 && ctx->codec_type == format->codec)
245 return 1;
246
247 if (ctx->cudecoder) {
248 av_log(avctx, AV_LOG_TRACE, "Re-initializing decoder\n");
249 ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder));
250 if (ctx->internal_error < 0)
251 return 0;
252 ctx->cudecoder = NULL;
253 }
254
255 if (hwframe_ctx->pool && (
256 hwframe_ctx->width < avctx->width ||
257 hwframe_ctx->height < avctx->height ||
258 hwframe_ctx->format != AV_PIX_FMT_CUDA ||
259 hwframe_ctx->sw_format != avctx->sw_pix_fmt)) {
260 av_log(avctx, AV_LOG_ERROR, "AVHWFramesContext is already initialized with incompatible parameters\n");
261 av_log(avctx, AV_LOG_DEBUG, "width: %d <-> %d\n", hwframe_ctx->width, avctx->width);
262 av_log(avctx, AV_LOG_DEBUG, "height: %d <-> %d\n", hwframe_ctx->height, avctx->height);
263 av_log(avctx, AV_LOG_DEBUG, "format: %s <-> cuda\n", av_get_pix_fmt_name(hwframe_ctx->format));
264 av_log(avctx, AV_LOG_DEBUG, "sw_format: %s <-> %s\n",
265 av_get_pix_fmt_name(hwframe_ctx->sw_format), av_get_pix_fmt_name(avctx->sw_pix_fmt));
266 ctx->internal_error = AVERROR(EINVAL);
267 return 0;
268 }
269
270 if (format->chroma_format != cudaVideoChromaFormat_420) {
271 av_log(avctx, AV_LOG_ERROR, "Chroma formats other than 420 are not supported\n");
272 ctx->internal_error = AVERROR(EINVAL);
273 return 0;
274 }
275
276 ctx->chroma_format = format->chroma_format;
277
278 cuinfo.CodecType = ctx->codec_type = format->codec;
279 cuinfo.ChromaFormat = format->chroma_format;
280
281 switch (avctx->sw_pix_fmt) {
282 case AV_PIX_FMT_NV12:
283 cuinfo.OutputFormat = cudaVideoSurfaceFormat_NV12;
284 break;
285 case AV_PIX_FMT_P010:
286 case AV_PIX_FMT_P016:
287 cuinfo.OutputFormat = cudaVideoSurfaceFormat_P016;
288 break;
289 default:
290 av_log(avctx, AV_LOG_ERROR, "Output formats other than NV12, P010 or P016 are not supported\n");
291 ctx->internal_error = AVERROR(EINVAL);
292 return 0;
293 }
294
295 cuinfo.ulNumDecodeSurfaces = ctx->nb_surfaces;
296 cuinfo.ulNumOutputSurfaces = 1;
297 cuinfo.ulCreationFlags = cudaVideoCreate_PreferCUVID;
298 cuinfo.bitDepthMinus8 = format->bit_depth_luma_minus8;
299 cuinfo.DeinterlaceMode = ctx->deint_mode_current;
300
301 if (ctx->deint_mode_current != cudaVideoDeinterlaceMode_Weave && !ctx->drop_second_field)
302 avctx->framerate = av_mul_q(avctx->framerate, (AVRational){2, 1});
303
304 ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidCreateDecoder(&ctx->cudecoder, &cuinfo));
305 if (ctx->internal_error < 0)
306 return 0;
307
308 if (!hwframe_ctx->pool) {
309 hwframe_ctx->format = AV_PIX_FMT_CUDA;
310 hwframe_ctx->sw_format = avctx->sw_pix_fmt;
311 hwframe_ctx->width = avctx->width;
312 hwframe_ctx->height = avctx->height;
313
314 if ((ctx->internal_error = av_hwframe_ctx_init(ctx->hwframe)) < 0) {
315 av_log(avctx, AV_LOG_ERROR, "av_hwframe_ctx_init failed\n");
316 return 0;
317 }
318 }
319
320 return 1;
321}
322
323static int CUDAAPI cuvid_handle_picture_decode(void *opaque, CUVIDPICPARAMS* picparams)
324{
325 AVCodecContext *avctx = opaque;
326 CuvidContext *ctx = avctx->priv_data;
327
328 av_log(avctx, AV_LOG_TRACE, "pfnDecodePicture\n");
329
330 ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDecodePicture(ctx->cudecoder, picparams));
331 if (ctx->internal_error < 0)
332 return 0;
333
334 return 1;
335}
336
337static int CUDAAPI cuvid_handle_picture_display(void *opaque, CUVIDPARSERDISPINFO* dispinfo)
338{
339 AVCodecContext *avctx = opaque;
340 CuvidContext *ctx = avctx->priv_data;
341 CuvidParsedFrame parsed_frame = { { 0 } };
342
343 parsed_frame.dispinfo = *dispinfo;
344 ctx->internal_error = 0;
345
346 if (ctx->deint_mode_current == cudaVideoDeinterlaceMode_Weave) {
347 av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
348 } else {
349 parsed_frame.is_deinterlacing = 1;
350 av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
351 if (!ctx->drop_second_field) {
352 parsed_frame.second_field = 1;
353 av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
354 }
355 }
356
357 return 1;
358}
359
360static int cuvid_decode_packet(AVCodecContext *avctx, const AVPacket *avpkt)
361{
362 CuvidContext *ctx = avctx->priv_data;
363 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
364 AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
365 CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
366 CUVIDSOURCEDATAPACKET cupkt;
367 AVPacket filter_packet = { 0 };
368 AVPacket filtered_packet = { 0 };
369 int ret = 0, eret = 0, is_flush = ctx->decoder_flushing;
370
371 av_log(avctx, AV_LOG_TRACE, "cuvid_decode_packet\n");
372
373 if (is_flush && avpkt && avpkt->size)
374 return AVERROR_EOF;
375
376 if ((av_fifo_size(ctx->frame_queue) / sizeof(CuvidParsedFrame)) + 2 > ctx->nb_surfaces && avpkt && avpkt->size)
377 return AVERROR(EAGAIN);
378
379 if (ctx->bsf && avpkt && avpkt->size) {
380 if ((ret = av_packet_ref(&filter_packet, avpkt)) < 0) {
381 av_log(avctx, AV_LOG_ERROR, "av_packet_ref failed\n");
382 return ret;
383 }
384
385 if ((ret = av_bsf_send_packet(ctx->bsf, &filter_packet)) < 0) {
386 av_log(avctx, AV_LOG_ERROR, "av_bsf_send_packet failed\n");
387 av_packet_unref(&filter_packet);
388 return ret;
389 }
390
391 if ((ret = av_bsf_receive_packet(ctx->bsf, &filtered_packet)) < 0) {
392 av_log(avctx, AV_LOG_ERROR, "av_bsf_receive_packet failed\n");
393 return ret;
394 }
395
396 avpkt = &filtered_packet;
397 }
398
399 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
400 if (ret < 0) {
401 av_packet_unref(&filtered_packet);
402 return ret;
403 }
404
405 memset(&cupkt, 0, sizeof(cupkt));
406
407 if (avpkt && avpkt->size) {
408 cupkt.payload_size = avpkt->size;
409 cupkt.payload = avpkt->data;
410
411 if (avpkt->pts != AV_NOPTS_VALUE) {
412 cupkt.flags = CUVID_PKT_TIMESTAMP;
413 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)
414 cupkt.timestamp = av_rescale_q(avpkt->pts, avctx->pkt_timebase, (AVRational){1, 10000000});
415 else
416 cupkt.timestamp = avpkt->pts;
417 }
418 } else {
419 cupkt.flags = CUVID_PKT_ENDOFSTREAM;
420 ctx->decoder_flushing = 1;
421 }
422
423 ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &cupkt));
424
425 av_packet_unref(&filtered_packet);
426
427 if (ret < 0)
428 goto error;
429
430 // cuvidParseVideoData doesn't return an error just because stuff failed...
431 if (ctx->internal_error) {
432 av_log(avctx, AV_LOG_ERROR, "cuvid decode callback error\n");
433 ret = ctx->internal_error;
434 goto error;
435 }
436
437error:
438 eret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
439
440 if (eret < 0)
441 return eret;
442 else if (ret < 0)
443 return ret;
444 else if (is_flush)
445 return AVERROR_EOF;
446 else
447 return 0;
448}
449
450static int cuvid_output_frame(AVCodecContext *avctx, AVFrame *frame)
451{
452 CuvidContext *ctx = avctx->priv_data;
453 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
454 AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
455 CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
456 CUdeviceptr mapped_frame = 0;
457 int ret = 0, eret = 0;
458
459 av_log(avctx, AV_LOG_TRACE, "cuvid_output_frame\n");
460
461 if (ctx->decoder_flushing) {
462 ret = cuvid_decode_packet(avctx, NULL);
463 if (ret < 0 && ret != AVERROR_EOF)
464 return ret;
465 }
466
467 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
468 if (ret < 0)
469 return ret;
470
471 if (av_fifo_size(ctx->frame_queue)) {
472 CuvidParsedFrame parsed_frame;
473 CUVIDPROCPARAMS params;
474 unsigned int pitch = 0;
475 int offset = 0;
476 int i;
477
478 av_fifo_generic_read(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
479
480 memset(&params, 0, sizeof(params));
481 params.progressive_frame = parsed_frame.dispinfo.progressive_frame;
482 params.second_field = parsed_frame.second_field;
483 params.top_field_first = parsed_frame.dispinfo.top_field_first;
484
485 ret = CHECK_CU(ctx->cvdl->cuvidMapVideoFrame(ctx->cudecoder, parsed_frame.dispinfo.picture_index, &mapped_frame, &pitch, &params));
486 if (ret < 0)
487 goto error;
488
489 if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
490 ret = av_hwframe_get_buffer(ctx->hwframe, frame, 0);
491 if (ret < 0) {
492 av_log(avctx, AV_LOG_ERROR, "av_hwframe_get_buffer failed\n");
493 goto error;
494 }
495
496 ret = ff_decode_frame_props(avctx, frame);
497 if (ret < 0) {
498 av_log(avctx, AV_LOG_ERROR, "ff_decode_frame_props failed\n");
499 goto error;
500 }
501
502 for (i = 0; i < 2; i++) {
503 CUDA_MEMCPY2D cpy = {
504 .srcMemoryType = CU_MEMORYTYPE_DEVICE,
505 .dstMemoryType = CU_MEMORYTYPE_DEVICE,
506 .srcDevice = mapped_frame,
507 .dstDevice = (CUdeviceptr)frame->data[i],
508 .srcPitch = pitch,
509 .dstPitch = frame->linesize[i],
510 .srcY = offset,
511 .WidthInBytes = FFMIN(pitch, frame->linesize[i]),
512 .Height = avctx->height >> (i ? 1 : 0),
513 };
514
515 ret = CHECK_CU(ctx->cudl->cuMemcpy2D(&cpy));
516 if (ret < 0)
517 goto error;
518
519 offset += avctx->height;
520 }
521 } else if (avctx->pix_fmt == AV_PIX_FMT_NV12 ||
522 avctx->pix_fmt == AV_PIX_FMT_P010 ||
523 avctx->pix_fmt == AV_PIX_FMT_P016) {
524 AVFrame *tmp_frame = av_frame_alloc();
525 if (!tmp_frame) {
526 av_log(avctx, AV_LOG_ERROR, "av_frame_alloc failed\n");
527 ret = AVERROR(ENOMEM);
528 goto error;
529 }
530
531 tmp_frame->format = AV_PIX_FMT_CUDA;
532 tmp_frame->hw_frames_ctx = av_buffer_ref(ctx->hwframe);
533 tmp_frame->data[0] = (uint8_t*)mapped_frame;
534 tmp_frame->linesize[0] = pitch;
535 tmp_frame->data[1] = (uint8_t*)(mapped_frame + avctx->height * pitch);
536 tmp_frame->linesize[1] = pitch;
537 tmp_frame->width = avctx->width;
538 tmp_frame->height = avctx->height;
539
540 ret = ff_get_buffer(avctx, frame, 0);
541 if (ret < 0) {
542 av_log(avctx, AV_LOG_ERROR, "ff_get_buffer failed\n");
543 av_frame_free(&tmp_frame);
544 goto error;
545 }
546
547 ret = av_hwframe_transfer_data(frame, tmp_frame, 0);
548 if (ret) {
549 av_log(avctx, AV_LOG_ERROR, "av_hwframe_transfer_data failed\n");
550 av_frame_free(&tmp_frame);
551 goto error;
552 }
553 av_frame_free(&tmp_frame);
554 } else {
555 ret = AVERROR_BUG;
556 goto error;
557 }
558
559 frame->width = avctx->width;
560 frame->height = avctx->height;
561 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)
562 frame->pts = av_rescale_q(parsed_frame.dispinfo.timestamp, (AVRational){1, 10000000}, avctx->pkt_timebase);
563 else
564 frame->pts = parsed_frame.dispinfo.timestamp;
565
566 if (parsed_frame.second_field) {
567 if (ctx->prev_pts == INT64_MIN) {
568 ctx->prev_pts = frame->pts;
569 frame->pts += (avctx->pkt_timebase.den * avctx->framerate.den) / (avctx->pkt_timebase.num * avctx->framerate.num);
570 } else {
571 int pts_diff = (frame->pts - ctx->prev_pts) / 2;
572 ctx->prev_pts = frame->pts;
573 frame->pts += pts_diff;
574 }
575 }
576
577 /* CUVIDs opaque reordering breaks the internal pkt logic.
578 * So set pkt_pts and clear all the other pkt_ fields.
579 */
580#if FF_API_PKT_PTS
581FF_DISABLE_DEPRECATION_WARNINGS
582 frame->pkt_pts = frame->pts;
583FF_ENABLE_DEPRECATION_WARNINGS
584#endif
585 av_frame_set_pkt_pos(frame, -1);
586 av_frame_set_pkt_duration(frame, 0);
587 av_frame_set_pkt_size(frame, -1);
588
589 frame->interlaced_frame = !parsed_frame.is_deinterlacing && !parsed_frame.dispinfo.progressive_frame;
590
591 if (frame->interlaced_frame)
592 frame->top_field_first = parsed_frame.dispinfo.top_field_first;
593 } else if (ctx->decoder_flushing) {
594 ret = AVERROR_EOF;
595 } else {
596 ret = AVERROR(EAGAIN);
597 }
598
599error:
600 if (mapped_frame)
601 eret = CHECK_CU(ctx->cvdl->cuvidUnmapVideoFrame(ctx->cudecoder, mapped_frame));
602
603 eret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
604
605 if (eret < 0)
606 return eret;
607 else
608 return ret;
609}
610
611static int cuvid_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
612{
613 CuvidContext *ctx = avctx->priv_data;
614 AVFrame *frame = data;
615 int ret = 0;
616
617 av_log(avctx, AV_LOG_TRACE, "cuvid_decode_frame\n");
618
619 if (ctx->deint_mode_current != cudaVideoDeinterlaceMode_Weave) {
620 av_log(avctx, AV_LOG_ERROR, "Deinterlacing is not supported via the old API\n");
621 return AVERROR(EINVAL);
622 }
623
624 if (!ctx->decoder_flushing) {
625 ret = cuvid_decode_packet(avctx, avpkt);
626 if (ret < 0)
627 return ret;
628 }
629
630 ret = cuvid_output_frame(avctx, frame);
631 if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
632 *got_frame = 0;
633 } else if (ret < 0) {
634 return ret;
635 } else {
636 *got_frame = 1;
637 }
638
639 return 0;
640}
641
642static av_cold int cuvid_decode_end(AVCodecContext *avctx)
643{
644 CuvidContext *ctx = avctx->priv_data;
645
646 av_fifo_freep(&ctx->frame_queue);
647
648 if (ctx->bsf)
649 av_bsf_free(&ctx->bsf);
650
651 if (ctx->cuparser)
652 ctx->cvdl->cuvidDestroyVideoParser(ctx->cuparser);
653
654 if (ctx->cudecoder)
655 ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);
656
657 ctx->cudl = NULL;
658
659 av_buffer_unref(&ctx->hwframe);
660 av_buffer_unref(&ctx->hwdevice);
661
662 cuvid_free_functions(&ctx->cvdl);
663
664 return 0;
665}
666
667static int cuvid_test_dummy_decoder(AVCodecContext *avctx,
668 const CUVIDPARSERPARAMS *cuparseinfo,
669 int probed_width,
670 int probed_height)
671{
672 CuvidContext *ctx = avctx->priv_data;
673 CUVIDDECODECREATEINFO cuinfo;
674 CUvideodecoder cudec = 0;
675 int ret = 0;
676
677 memset(&cuinfo, 0, sizeof(cuinfo));
678
679 cuinfo.CodecType = cuparseinfo->CodecType;
680 cuinfo.ChromaFormat = cudaVideoChromaFormat_420;
681 cuinfo.OutputFormat = cudaVideoSurfaceFormat_NV12;
682
683 cuinfo.ulWidth = probed_width;
684 cuinfo.ulHeight = probed_height;
685 cuinfo.ulTargetWidth = cuinfo.ulWidth;
686 cuinfo.ulTargetHeight = cuinfo.ulHeight;
687
688 cuinfo.target_rect.left = 0;
689 cuinfo.target_rect.top = 0;
690 cuinfo.target_rect.right = cuinfo.ulWidth;
691 cuinfo.target_rect.bottom = cuinfo.ulHeight;
692
693 cuinfo.ulNumDecodeSurfaces = ctx->nb_surfaces;
694 cuinfo.ulNumOutputSurfaces = 1;
695 cuinfo.ulCreationFlags = cudaVideoCreate_PreferCUVID;
696 cuinfo.bitDepthMinus8 = 0;
697
698 cuinfo.DeinterlaceMode = cudaVideoDeinterlaceMode_Weave;
699
700 ret = CHECK_CU(ctx->cvdl->cuvidCreateDecoder(&cudec, &cuinfo));
701 if (ret < 0)
702 return ret;
703
704 ret = CHECK_CU(ctx->cvdl->cuvidDestroyDecoder(cudec));
705 if (ret < 0)
706 return ret;
707
708 return 0;
709}
710
711static av_cold int cuvid_decode_init(AVCodecContext *avctx)
712{
713 CuvidContext *ctx = avctx->priv_data;
714 AVCUDADeviceContext *device_hwctx;
715 AVHWDeviceContext *device_ctx;
716 AVHWFramesContext *hwframe_ctx;
717 CUVIDSOURCEDATAPACKET seq_pkt;
718 CUcontext cuda_ctx = NULL;
719 CUcontext dummy;
720 const AVBitStreamFilter *bsf;
721 int ret = 0;
722
723 enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_CUDA,
724 AV_PIX_FMT_NV12,
725 AV_PIX_FMT_NONE };
726
727 int probed_width = avctx->coded_width ? avctx->coded_width : 1280;
728 int probed_height = avctx->coded_height ? avctx->coded_height : 720;
729
730 // Accelerated transcoding scenarios with 'ffmpeg' require that the
731 // pix_fmt be set to AV_PIX_FMT_CUDA early. The sw_pix_fmt, and the
732 // pix_fmt for non-accelerated transcoding, do not need to be correct
733 // but need to be set to something. We arbitrarily pick NV12.
734 ret = ff_get_format(avctx, pix_fmts);
735 if (ret < 0) {
736 av_log(avctx, AV_LOG_ERROR, "ff_get_format failed: %d\n", ret);
737 return ret;
738 }
739 avctx->pix_fmt = ret;
740
741 if (ctx->resize_expr && sscanf(ctx->resize_expr, "%dx%d",
742 &ctx->resize.width, &ctx->resize.height) != 2) {
743 av_log(avctx, AV_LOG_ERROR, "Invalid resize expressions\n");
744 ret = AVERROR(EINVAL);
745 goto error;
746 }
747
748 if (ctx->crop_expr && sscanf(ctx->crop_expr, "%dx%dx%dx%d",
749 &ctx->crop.top, &ctx->crop.bottom,
750 &ctx->crop.left, &ctx->crop.right) != 4) {
751 av_log(avctx, AV_LOG_ERROR, "Invalid cropping expressions\n");
752 ret = AVERROR(EINVAL);
753 goto error;
754 }
755
756 ret = cuvid_load_functions(&ctx->cvdl);
757 if (ret < 0) {
758 av_log(avctx, AV_LOG_ERROR, "Failed loading nvcuvid.\n");
759 goto error;
760 }
761
762 ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
763 if (!ctx->frame_queue) {
764 ret = AVERROR(ENOMEM);
765 goto error;
766 }
767
768 if (avctx->hw_frames_ctx) {
769 ctx->hwframe = av_buffer_ref(avctx->hw_frames_ctx);
770 if (!ctx->hwframe) {
771 ret = AVERROR(ENOMEM);
772 goto error;
773 }
774
775 hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
776
777 ctx->hwdevice = av_buffer_ref(hwframe_ctx->device_ref);
778 if (!ctx->hwdevice) {
779 ret = AVERROR(ENOMEM);
780 goto error;
781 }
782 } else {
783 ret = av_hwdevice_ctx_create(&ctx->hwdevice, AV_HWDEVICE_TYPE_CUDA, ctx->cu_gpu, NULL, 0);
784 if (ret < 0)
785 goto error;
786
787 ctx->hwframe = av_hwframe_ctx_alloc(ctx->hwdevice);
788 if (!ctx->hwframe) {
789 av_log(avctx, AV_LOG_ERROR, "av_hwframe_ctx_alloc failed\n");
790 ret = AVERROR(ENOMEM);
791 goto error;
792 }
793
794 hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
795 }
796
797 device_ctx = hwframe_ctx->device_ctx;
798 device_hwctx = device_ctx->hwctx;
799
800 cuda_ctx = device_hwctx->cuda_ctx;
801 ctx->cudl = device_hwctx->internal->cuda_dl;
802
803 memset(&ctx->cuparseinfo, 0, sizeof(ctx->cuparseinfo));
804 memset(&ctx->cuparse_ext, 0, sizeof(ctx->cuparse_ext));
805 memset(&seq_pkt, 0, sizeof(seq_pkt));
806
807 ctx->cuparseinfo.pExtVideoInfo = &ctx->cuparse_ext;
808
809 switch (avctx->codec->id) {
810#if CONFIG_H264_CUVID_DECODER
811 case AV_CODEC_ID_H264:
812 ctx->cuparseinfo.CodecType = cudaVideoCodec_H264;
813 break;
814#endif
815#if CONFIG_HEVC_CUVID_DECODER
816 case AV_CODEC_ID_HEVC:
817 ctx->cuparseinfo.CodecType = cudaVideoCodec_HEVC;
818 break;
819#endif
820#if CONFIG_MJPEG_CUVID_DECODER
821 case AV_CODEC_ID_MJPEG:
822 ctx->cuparseinfo.CodecType = cudaVideoCodec_JPEG;
823 break;
824#endif
825#if CONFIG_MPEG1_CUVID_DECODER
826 case AV_CODEC_ID_MPEG1VIDEO:
827 ctx->cuparseinfo.CodecType = cudaVideoCodec_MPEG1;
828 break;
829#endif
830#if CONFIG_MPEG2_CUVID_DECODER
831 case AV_CODEC_ID_MPEG2VIDEO:
832 ctx->cuparseinfo.CodecType = cudaVideoCodec_MPEG2;
833 break;
834#endif
835#if CONFIG_MPEG4_CUVID_DECODER
836 case AV_CODEC_ID_MPEG4:
837 ctx->cuparseinfo.CodecType = cudaVideoCodec_MPEG4;
838 break;
839#endif
840#if CONFIG_VP8_CUVID_DECODER
841 case AV_CODEC_ID_VP8:
842 ctx->cuparseinfo.CodecType = cudaVideoCodec_VP8;
843 break;
844#endif
845#if CONFIG_VP9_CUVID_DECODER
846 case AV_CODEC_ID_VP9:
847 ctx->cuparseinfo.CodecType = cudaVideoCodec_VP9;
848 break;
849#endif
850#if CONFIG_VC1_CUVID_DECODER
851 case AV_CODEC_ID_VC1:
852 ctx->cuparseinfo.CodecType = cudaVideoCodec_VC1;
853 break;
854#endif
855 default:
856 av_log(avctx, AV_LOG_ERROR, "Invalid CUVID codec!\n");
857 return AVERROR_BUG;
858 }
859
860 if (avctx->codec->id == AV_CODEC_ID_H264 || avctx->codec->id == AV_CODEC_ID_HEVC) {
861 if (avctx->codec->id == AV_CODEC_ID_H264)
862 bsf = av_bsf_get_by_name("h264_mp4toannexb");
863 else
864 bsf = av_bsf_get_by_name("hevc_mp4toannexb");
865
866 if (!bsf) {
867 ret = AVERROR_BSF_NOT_FOUND;
868 goto error;
869 }
870 if (ret = av_bsf_alloc(bsf, &ctx->bsf)) {
871 goto error;
872 }
873 if (((ret = avcodec_parameters_from_context(ctx->bsf->par_in, avctx)) < 0) || ((ret = av_bsf_init(ctx->bsf)) < 0)) {
874 av_bsf_free(&ctx->bsf);
875 goto error;
876 }
877
878 ctx->cuparse_ext.format.seqhdr_data_length = ctx->bsf->par_out->extradata_size;
879 memcpy(ctx->cuparse_ext.raw_seqhdr_data,
880 ctx->bsf->par_out->extradata,
881 FFMIN(sizeof(ctx->cuparse_ext.raw_seqhdr_data), ctx->bsf->par_out->extradata_size));
882 } else if (avctx->extradata_size > 0) {
883 ctx->cuparse_ext.format.seqhdr_data_length = avctx->extradata_size;
884 memcpy(ctx->cuparse_ext.raw_seqhdr_data,
885 avctx->extradata,
886 FFMIN(sizeof(ctx->cuparse_ext.raw_seqhdr_data), avctx->extradata_size));
887 }
888
889 ctx->cuparseinfo.ulMaxNumDecodeSurfaces = ctx->nb_surfaces;
890 ctx->cuparseinfo.ulMaxDisplayDelay = 4;
891 ctx->cuparseinfo.pUserData = avctx;
892 ctx->cuparseinfo.pfnSequenceCallback = cuvid_handle_video_sequence;
893 ctx->cuparseinfo.pfnDecodePicture = cuvid_handle_picture_decode;
894 ctx->cuparseinfo.pfnDisplayPicture = cuvid_handle_picture_display;
895
896 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
897 if (ret < 0)
898 goto error;
899
900 ret = cuvid_test_dummy_decoder(avctx, &ctx->cuparseinfo,
901 probed_width,
902 probed_height);
903 if (ret < 0)
904 goto error;
905
906 ret = CHECK_CU(ctx->cvdl->cuvidCreateVideoParser(&ctx->cuparser, &ctx->cuparseinfo));
907 if (ret < 0)
908 goto error;
909
910 seq_pkt.payload = ctx->cuparse_ext.raw_seqhdr_data;
911 seq_pkt.payload_size = ctx->cuparse_ext.format.seqhdr_data_length;
912
913 if (seq_pkt.payload && seq_pkt.payload_size) {
914 ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &seq_pkt));
915 if (ret < 0)
916 goto error;
917 }
918
919 ret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
920 if (ret < 0)
921 goto error;
922
923 ctx->prev_pts = INT64_MIN;
924
925 if (!avctx->pkt_timebase.num || !avctx->pkt_timebase.den)
926 av_log(avctx, AV_LOG_WARNING, "Invalid pkt_timebase, passing timestamps as-is.\n");
927
928 return 0;
929
930error:
931 cuvid_decode_end(avctx);
932 return ret;
933}
934
935static void cuvid_flush(AVCodecContext *avctx)
936{
937 CuvidContext *ctx = avctx->priv_data;
938 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
939 AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
940 CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
941 CUVIDSOURCEDATAPACKET seq_pkt = { 0 };
942 int ret;
943
944 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
945 if (ret < 0)
946 goto error;
947
948 av_fifo_freep(&ctx->frame_queue);
949
950 ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
951 if (!ctx->frame_queue) {
952 av_log(avctx, AV_LOG_ERROR, "Failed to recreate frame queue on flush\n");
953 return;
954 }
955
956 if (ctx->cudecoder) {
957 ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);
958 ctx->cudecoder = NULL;
959 }
960
961 if (ctx->cuparser) {
962 ctx->cvdl->cuvidDestroyVideoParser(ctx->cuparser);
963 ctx->cuparser = NULL;
964 }
965
966 ret = CHECK_CU(ctx->cvdl->cuvidCreateVideoParser(&ctx->cuparser, &ctx->cuparseinfo));
967 if (ret < 0)
968 goto error;
969
970 seq_pkt.payload = ctx->cuparse_ext.raw_seqhdr_data;
971 seq_pkt.payload_size = ctx->cuparse_ext.format.seqhdr_data_length;
972
973 if (seq_pkt.payload && seq_pkt.payload_size) {
974 ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &seq_pkt));
975 if (ret < 0)
976 goto error;
977 }
978
979 ret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
980 if (ret < 0)
981 goto error;
982
983 ctx->prev_pts = INT64_MIN;
984 ctx->decoder_flushing = 0;
985
986 return;
987 error:
988 av_log(avctx, AV_LOG_ERROR, "CUDA reinit on flush failed\n");
989}
990
991#define OFFSET(x) offsetof(CuvidContext, x)
992#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
993static const AVOption options[] = {
994 { "deint", "Set deinterlacing mode", OFFSET(deint_mode), AV_OPT_TYPE_INT, { .i64 = cudaVideoDeinterlaceMode_Weave }, cudaVideoDeinterlaceMode_Weave, cudaVideoDeinterlaceMode_Adaptive, VD, "deint" },
995 { "weave", "Weave deinterlacing (do nothing)", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Weave }, 0, 0, VD, "deint" },
996 { "bob", "Bob deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Bob }, 0, 0, VD, "deint" },
997 { "adaptive", "Adaptive deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Adaptive }, 0, 0, VD, "deint" },
998 { "gpu", "GPU to be used for decoding", OFFSET(cu_gpu), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
999 { "surfaces", "Maximum surfaces to be used for decoding", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, INT_MAX, VD },
1000 { "drop_second_field", "Drop second field when deinterlacing", OFFSET(drop_second_field), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
1001 { "crop", "Crop (top)x(bottom)x(left)x(right)", OFFSET(crop_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1002 { "resize", "Resize (width)x(height)", OFFSET(resize_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1003 { NULL }
1004};
1005
1006#define DEFINE_CUVID_CODEC(x, X) \
1007 static const AVClass x##_cuvid_class = { \
1008 .class_name = #x "_cuvid", \
1009 .item_name = av_default_item_name, \
1010 .option = options, \
1011 .version = LIBAVUTIL_VERSION_INT, \
1012 }; \
1013 AVHWAccel ff_##x##_cuvid_hwaccel = { \
1014 .name = #x "_cuvid", \
1015 .type = AVMEDIA_TYPE_VIDEO, \
1016 .id = AV_CODEC_ID_##X, \
1017 .pix_fmt = AV_PIX_FMT_CUDA, \
1018 }; \
1019 AVCodec ff_##x##_cuvid_decoder = { \
1020 .name = #x "_cuvid", \
1021 .long_name = NULL_IF_CONFIG_SMALL("Nvidia CUVID " #X " decoder"), \
1022 .type = AVMEDIA_TYPE_VIDEO, \
1023 .id = AV_CODEC_ID_##X, \
1024 .priv_data_size = sizeof(CuvidContext), \
1025 .priv_class = &x##_cuvid_class, \
1026 .init = cuvid_decode_init, \
1027 .close = cuvid_decode_end, \
1028 .decode = cuvid_decode_frame, \
1029 .send_packet = cuvid_decode_packet, \
1030 .receive_frame = cuvid_output_frame, \
1031 .flush = cuvid_flush, \
1032 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING, \
1033 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_CUDA, \
1034 AV_PIX_FMT_NV12, \
1035 AV_PIX_FMT_P010, \
1036 AV_PIX_FMT_P016, \
1037 AV_PIX_FMT_NONE }, \
1038 };
1039
1040#if CONFIG_HEVC_CUVID_DECODER
1041DEFINE_CUVID_CODEC(hevc, HEVC)
1042#endif
1043
1044#if CONFIG_H264_CUVID_DECODER
1045DEFINE_CUVID_CODEC(h264, H264)
1046#endif
1047
1048#if CONFIG_MJPEG_CUVID_DECODER
1049DEFINE_CUVID_CODEC(mjpeg, MJPEG)
1050#endif
1051
1052#if CONFIG_MPEG1_CUVID_DECODER
1053DEFINE_CUVID_CODEC(mpeg1, MPEG1VIDEO)
1054#endif
1055
1056#if CONFIG_MPEG2_CUVID_DECODER
1057DEFINE_CUVID_CODEC(mpeg2, MPEG2VIDEO)
1058#endif
1059
1060#if CONFIG_MPEG4_CUVID_DECODER
1061DEFINE_CUVID_CODEC(mpeg4, MPEG4)
1062#endif
1063
1064#if CONFIG_VP8_CUVID_DECODER
1065DEFINE_CUVID_CODEC(vp8, VP8)
1066#endif
1067
1068#if CONFIG_VP9_CUVID_DECODER
1069DEFINE_CUVID_CODEC(vp9, VP9)
1070#endif
1071
1072#if CONFIG_VC1_CUVID_DECODER
1073DEFINE_CUVID_CODEC(vc1, VC1)
1074#endif
1075
generated by cgit at 2024-05-17 06:34:01 (GMT)