3 * Copyright (c) 2016 Timo Rothenpieler <timo@rothenpieler.org>
5 * This file is part of FFmpeg.
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.
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.
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
22 #include "compat/cuda/dynlink_loader.h"
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"
38 typedef struct CuvidContext
42 CUvideodecoder cudecoder;
43 CUvideoparser cuparser;
47 int drop_second_field;
63 AVBufferRef *hwdevice;
68 AVFifoBuffer *frame_queue;
71 int deint_mode_current;
79 cudaVideoCodec codec_type;
80 cudaVideoChromaFormat chroma_format;
82 CUVIDDECODECAPS caps8, caps10, caps12;
84 CUVIDPARSERPARAMS cuparseinfo;
85 CUVIDEOFORMATEX cuparse_ext;
91 typedef struct CuvidParsedFrame
93 CUVIDPARSERDISPINFO dispinfo;
98 static int check_cu(AVCodecContext *avctx, CUresult err, const char *func)
100 CuvidContext *ctx = avctx->priv_data;
101 const char *err_name;
102 const char *err_string;
104 av_log(avctx, AV_LOG_TRACE, "Calling %s\n", func);
106 if (err == CUDA_SUCCESS)
109 ctx->cudl->cuGetErrorName(err, &err_name);
110 ctx->cudl->cuGetErrorString(err, &err_string);
112 av_log(avctx, AV_LOG_ERROR, "%s failed", func);
113 if (err_name && err_string)
114 av_log(avctx, AV_LOG_ERROR, " -> %s: %s", err_name, err_string);
115 av_log(avctx, AV_LOG_ERROR, "\n");
117 return AVERROR_EXTERNAL;
120 #define CHECK_CU(x) check_cu(avctx, (x), #x)
122 static int CUDAAPI cuvid_handle_video_sequence(void *opaque, CUVIDEOFORMAT* format)
124 AVCodecContext *avctx = opaque;
125 CuvidContext *ctx = avctx->priv_data;
126 AVHWFramesContext *hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
127 CUVIDDECODECAPS *caps = NULL;
128 CUVIDDECODECREATEINFO cuinfo;
131 int old_width = avctx->width;
132 int old_height = avctx->height;
134 enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_CUDA,
135 AV_PIX_FMT_NONE, // Will be updated below
138 av_log(avctx, AV_LOG_TRACE, "pfnSequenceCallback, progressive_sequence=%d\n", format->progressive_sequence);
140 memset(&cuinfo, 0, sizeof(cuinfo));
142 ctx->internal_error = 0;
144 avctx->coded_width = cuinfo.ulWidth = format->coded_width;
145 avctx->coded_height = cuinfo.ulHeight = format->coded_height;
148 cuinfo.display_area.left = format->display_area.left + ctx->crop.left;
149 cuinfo.display_area.top = format->display_area.top + ctx->crop.top;
150 cuinfo.display_area.right = format->display_area.right - ctx->crop.right;
151 cuinfo.display_area.bottom = format->display_area.bottom - ctx->crop.bottom;
153 // width and height need to be set before calling ff_get_format
154 if (ctx->resize_expr) {
155 avctx->width = ctx->resize.width;
156 avctx->height = ctx->resize.height;
158 avctx->width = cuinfo.display_area.right - cuinfo.display_area.left;
159 avctx->height = cuinfo.display_area.bottom - cuinfo.display_area.top;
162 // target width/height need to be multiples of two
163 cuinfo.ulTargetWidth = avctx->width = (avctx->width + 1) & ~1;
164 cuinfo.ulTargetHeight = avctx->height = (avctx->height + 1) & ~1;
166 // aspect ratio conversion, 1:1, depends on scaled resolution
167 cuinfo.target_rect.left = 0;
168 cuinfo.target_rect.top = 0;
169 cuinfo.target_rect.right = cuinfo.ulTargetWidth;
170 cuinfo.target_rect.bottom = cuinfo.ulTargetHeight;
172 switch (format->bit_depth_luma_minus8) {
174 pix_fmts[1] = AV_PIX_FMT_NV12;
178 pix_fmts[1] = AV_PIX_FMT_P010;
182 pix_fmts[1] = AV_PIX_FMT_P016;
189 if (!caps || !caps->bIsSupported) {
190 av_log(avctx, AV_LOG_ERROR, "unsupported bit depth: %d\n",
191 format->bit_depth_luma_minus8 + 8);
192 ctx->internal_error = AVERROR(EINVAL);
196 surface_fmt = ff_get_format(avctx, pix_fmts);
197 if (surface_fmt < 0) {
198 av_log(avctx, AV_LOG_ERROR, "ff_get_format failed: %d\n", surface_fmt);
199 ctx->internal_error = AVERROR(EINVAL);
203 av_log(avctx, AV_LOG_VERBOSE, "Formats: Original: %s | HW: %s | SW: %s\n",
204 av_get_pix_fmt_name(avctx->pix_fmt),
205 av_get_pix_fmt_name(surface_fmt),
206 av_get_pix_fmt_name(avctx->sw_pix_fmt));
208 avctx->pix_fmt = surface_fmt;
210 // Update our hwframe ctx, as the get_format callback might have refreshed it!
211 if (avctx->hw_frames_ctx) {
212 av_buffer_unref(&ctx->hwframe);
214 ctx->hwframe = av_buffer_ref(avctx->hw_frames_ctx);
216 ctx->internal_error = AVERROR(ENOMEM);
220 hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
223 ff_set_sar(avctx, av_div_q(
224 (AVRational){ format->display_aspect_ratio.x, format->display_aspect_ratio.y },
225 (AVRational){ avctx->width, avctx->height }));
227 ctx->deint_mode_current = format->progressive_sequence
228 ? cudaVideoDeinterlaceMode_Weave
231 if (!format->progressive_sequence && ctx->deint_mode_current == cudaVideoDeinterlaceMode_Weave)
232 avctx->flags |= AV_CODEC_FLAG_INTERLACED_DCT;
234 avctx->flags &= ~AV_CODEC_FLAG_INTERLACED_DCT;
236 if (format->video_signal_description.video_full_range_flag)
237 avctx->color_range = AVCOL_RANGE_JPEG;
239 avctx->color_range = AVCOL_RANGE_MPEG;
241 avctx->color_primaries = format->video_signal_description.color_primaries;
242 avctx->color_trc = format->video_signal_description.transfer_characteristics;
243 avctx->colorspace = format->video_signal_description.matrix_coefficients;
246 avctx->bit_rate = format->bitrate;
248 if (format->frame_rate.numerator && format->frame_rate.denominator) {
249 avctx->framerate.num = format->frame_rate.numerator;
250 avctx->framerate.den = format->frame_rate.denominator;
254 && avctx->coded_width == format->coded_width
255 && avctx->coded_height == format->coded_height
256 && avctx->width == old_width
257 && avctx->height == old_height
258 && ctx->chroma_format == format->chroma_format
259 && ctx->codec_type == format->codec)
262 if (ctx->cudecoder) {
263 av_log(avctx, AV_LOG_TRACE, "Re-initializing decoder\n");
264 ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder));
265 if (ctx->internal_error < 0)
267 ctx->cudecoder = NULL;
270 if (hwframe_ctx->pool && (
271 hwframe_ctx->width < avctx->width ||
272 hwframe_ctx->height < avctx->height ||
273 hwframe_ctx->format != AV_PIX_FMT_CUDA ||
274 hwframe_ctx->sw_format != avctx->sw_pix_fmt)) {
275 av_log(avctx, AV_LOG_ERROR, "AVHWFramesContext is already initialized with incompatible parameters\n");
276 av_log(avctx, AV_LOG_DEBUG, "width: %d <-> %d\n", hwframe_ctx->width, avctx->width);
277 av_log(avctx, AV_LOG_DEBUG, "height: %d <-> %d\n", hwframe_ctx->height, avctx->height);
278 av_log(avctx, AV_LOG_DEBUG, "format: %s <-> cuda\n", av_get_pix_fmt_name(hwframe_ctx->format));
279 av_log(avctx, AV_LOG_DEBUG, "sw_format: %s <-> %s\n",
280 av_get_pix_fmt_name(hwframe_ctx->sw_format), av_get_pix_fmt_name(avctx->sw_pix_fmt));
281 ctx->internal_error = AVERROR(EINVAL);
285 if (format->chroma_format != cudaVideoChromaFormat_420) {
286 av_log(avctx, AV_LOG_ERROR, "Chroma formats other than 420 are not supported\n");
287 ctx->internal_error = AVERROR(EINVAL);
291 ctx->chroma_format = format->chroma_format;
293 cuinfo.CodecType = ctx->codec_type = format->codec;
294 cuinfo.ChromaFormat = format->chroma_format;
296 switch (avctx->sw_pix_fmt) {
297 case AV_PIX_FMT_NV12:
298 cuinfo.OutputFormat = cudaVideoSurfaceFormat_NV12;
300 case AV_PIX_FMT_P010:
301 case AV_PIX_FMT_P016:
302 cuinfo.OutputFormat = cudaVideoSurfaceFormat_P016;
305 av_log(avctx, AV_LOG_ERROR, "Output formats other than NV12, P010 or P016 are not supported\n");
306 ctx->internal_error = AVERROR(EINVAL);
310 cuinfo.ulNumDecodeSurfaces = ctx->nb_surfaces;
311 cuinfo.ulNumOutputSurfaces = 1;
312 cuinfo.ulCreationFlags = cudaVideoCreate_PreferCUVID;
313 cuinfo.bitDepthMinus8 = format->bit_depth_luma_minus8;
314 cuinfo.DeinterlaceMode = ctx->deint_mode_current;
316 if (ctx->deint_mode_current != cudaVideoDeinterlaceMode_Weave && !ctx->drop_second_field)
317 avctx->framerate = av_mul_q(avctx->framerate, (AVRational){2, 1});
319 ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidCreateDecoder(&ctx->cudecoder, &cuinfo));
320 if (ctx->internal_error < 0)
323 if (!hwframe_ctx->pool) {
324 hwframe_ctx->format = AV_PIX_FMT_CUDA;
325 hwframe_ctx->sw_format = avctx->sw_pix_fmt;
326 hwframe_ctx->width = avctx->width;
327 hwframe_ctx->height = avctx->height;
329 if ((ctx->internal_error = av_hwframe_ctx_init(ctx->hwframe)) < 0) {
330 av_log(avctx, AV_LOG_ERROR, "av_hwframe_ctx_init failed\n");
338 static int CUDAAPI cuvid_handle_picture_decode(void *opaque, CUVIDPICPARAMS* picparams)
340 AVCodecContext *avctx = opaque;
341 CuvidContext *ctx = avctx->priv_data;
343 av_log(avctx, AV_LOG_TRACE, "pfnDecodePicture\n");
345 ctx->key_frame[picparams->CurrPicIdx] = picparams->intra_pic_flag;
347 ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDecodePicture(ctx->cudecoder, picparams));
348 if (ctx->internal_error < 0)
354 static int CUDAAPI cuvid_handle_picture_display(void *opaque, CUVIDPARSERDISPINFO* dispinfo)
356 AVCodecContext *avctx = opaque;
357 CuvidContext *ctx = avctx->priv_data;
358 CuvidParsedFrame parsed_frame = { { 0 } };
360 parsed_frame.dispinfo = *dispinfo;
361 ctx->internal_error = 0;
363 if (ctx->deint_mode_current == cudaVideoDeinterlaceMode_Weave) {
364 av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
366 parsed_frame.is_deinterlacing = 1;
367 av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
368 if (!ctx->drop_second_field) {
369 parsed_frame.second_field = 1;
370 av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
377 static int cuvid_is_buffer_full(AVCodecContext *avctx)
379 CuvidContext *ctx = avctx->priv_data;
381 return (av_fifo_size(ctx->frame_queue) / sizeof(CuvidParsedFrame)) + 2 > ctx->nb_surfaces;
384 static int cuvid_decode_packet(AVCodecContext *avctx, const AVPacket *avpkt)
386 CuvidContext *ctx = avctx->priv_data;
387 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
388 AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
389 CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
390 CUVIDSOURCEDATAPACKET cupkt;
391 AVPacket filter_packet = { 0 };
392 AVPacket filtered_packet = { 0 };
393 int ret = 0, eret = 0, is_flush = ctx->decoder_flushing;
395 av_log(avctx, AV_LOG_TRACE, "cuvid_decode_packet\n");
397 if (is_flush && avpkt && avpkt->size)
400 if (cuvid_is_buffer_full(avctx) && avpkt && avpkt->size)
401 return AVERROR(EAGAIN);
403 if (ctx->bsf && avpkt && avpkt->size) {
404 if ((ret = av_packet_ref(&filter_packet, avpkt)) < 0) {
405 av_log(avctx, AV_LOG_ERROR, "av_packet_ref failed\n");
409 if ((ret = av_bsf_send_packet(ctx->bsf, &filter_packet)) < 0) {
410 av_log(avctx, AV_LOG_ERROR, "av_bsf_send_packet failed\n");
411 av_packet_unref(&filter_packet);
415 if ((ret = av_bsf_receive_packet(ctx->bsf, &filtered_packet)) < 0) {
416 av_log(avctx, AV_LOG_ERROR, "av_bsf_receive_packet failed\n");
420 avpkt = &filtered_packet;
423 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
425 av_packet_unref(&filtered_packet);
429 memset(&cupkt, 0, sizeof(cupkt));
431 if (avpkt && avpkt->size) {
432 cupkt.payload_size = avpkt->size;
433 cupkt.payload = avpkt->data;
435 if (avpkt->pts != AV_NOPTS_VALUE) {
436 cupkt.flags = CUVID_PKT_TIMESTAMP;
437 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)
438 cupkt.timestamp = av_rescale_q(avpkt->pts, avctx->pkt_timebase, (AVRational){1, 10000000});
440 cupkt.timestamp = avpkt->pts;
443 cupkt.flags = CUVID_PKT_ENDOFSTREAM;
444 ctx->decoder_flushing = 1;
447 ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &cupkt));
449 av_packet_unref(&filtered_packet);
454 // cuvidParseVideoData doesn't return an error just because stuff failed...
455 if (ctx->internal_error) {
456 av_log(avctx, AV_LOG_ERROR, "cuvid decode callback error\n");
457 ret = ctx->internal_error;
462 eret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
474 static int cuvid_output_frame(AVCodecContext *avctx, AVFrame *frame)
476 CuvidContext *ctx = avctx->priv_data;
477 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
478 AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
479 CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
480 CUdeviceptr mapped_frame = 0;
481 int ret = 0, eret = 0;
483 av_log(avctx, AV_LOG_TRACE, "cuvid_output_frame\n");
485 if (ctx->decoder_flushing) {
486 ret = cuvid_decode_packet(avctx, NULL);
487 if (ret < 0 && ret != AVERROR_EOF)
491 if (!cuvid_is_buffer_full(avctx)) {
493 ret = ff_decode_get_packet(avctx, &pkt);
494 if (ret < 0 && ret != AVERROR_EOF)
496 ret = cuvid_decode_packet(avctx, &pkt);
497 av_packet_unref(&pkt);
498 // cuvid_is_buffer_full() should avoid this.
499 if (ret == AVERROR(EAGAIN))
500 ret = AVERROR_EXTERNAL;
501 if (ret < 0 && ret != AVERROR_EOF)
505 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
509 if (av_fifo_size(ctx->frame_queue)) {
510 CuvidParsedFrame parsed_frame;
511 CUVIDPROCPARAMS params;
512 unsigned int pitch = 0;
516 av_fifo_generic_read(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
518 memset(¶ms, 0, sizeof(params));
519 params.progressive_frame = parsed_frame.dispinfo.progressive_frame;
520 params.second_field = parsed_frame.second_field;
521 params.top_field_first = parsed_frame.dispinfo.top_field_first;
523 ret = CHECK_CU(ctx->cvdl->cuvidMapVideoFrame(ctx->cudecoder, parsed_frame.dispinfo.picture_index, &mapped_frame, &pitch, ¶ms));
527 if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
528 ret = av_hwframe_get_buffer(ctx->hwframe, frame, 0);
530 av_log(avctx, AV_LOG_ERROR, "av_hwframe_get_buffer failed\n");
534 ret = ff_decode_frame_props(avctx, frame);
536 av_log(avctx, AV_LOG_ERROR, "ff_decode_frame_props failed\n");
540 for (i = 0; i < 2; i++) {
541 CUDA_MEMCPY2D cpy = {
542 .srcMemoryType = CU_MEMORYTYPE_DEVICE,
543 .dstMemoryType = CU_MEMORYTYPE_DEVICE,
544 .srcDevice = mapped_frame,
545 .dstDevice = (CUdeviceptr)frame->data[i],
547 .dstPitch = frame->linesize[i],
549 .WidthInBytes = FFMIN(pitch, frame->linesize[i]),
550 .Height = avctx->height >> (i ? 1 : 0),
553 ret = CHECK_CU(ctx->cudl->cuMemcpy2DAsync(&cpy, device_hwctx->stream));
557 offset += avctx->height;
560 ret = CHECK_CU(ctx->cudl->cuStreamSynchronize(device_hwctx->stream));
563 } else if (avctx->pix_fmt == AV_PIX_FMT_NV12 ||
564 avctx->pix_fmt == AV_PIX_FMT_P010 ||
565 avctx->pix_fmt == AV_PIX_FMT_P016) {
566 AVFrame *tmp_frame = av_frame_alloc();
568 av_log(avctx, AV_LOG_ERROR, "av_frame_alloc failed\n");
569 ret = AVERROR(ENOMEM);
573 tmp_frame->format = AV_PIX_FMT_CUDA;
574 tmp_frame->hw_frames_ctx = av_buffer_ref(ctx->hwframe);
575 tmp_frame->data[0] = (uint8_t*)mapped_frame;
576 tmp_frame->linesize[0] = pitch;
577 tmp_frame->data[1] = (uint8_t*)(mapped_frame + avctx->height * pitch);
578 tmp_frame->linesize[1] = pitch;
579 tmp_frame->width = avctx->width;
580 tmp_frame->height = avctx->height;
582 ret = ff_get_buffer(avctx, frame, 0);
584 av_log(avctx, AV_LOG_ERROR, "ff_get_buffer failed\n");
585 av_frame_free(&tmp_frame);
589 ret = av_hwframe_transfer_data(frame, tmp_frame, 0);
591 av_log(avctx, AV_LOG_ERROR, "av_hwframe_transfer_data failed\n");
592 av_frame_free(&tmp_frame);
595 av_frame_free(&tmp_frame);
601 frame->key_frame = ctx->key_frame[parsed_frame.dispinfo.picture_index];
602 frame->width = avctx->width;
603 frame->height = avctx->height;
604 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)
605 frame->pts = av_rescale_q(parsed_frame.dispinfo.timestamp, (AVRational){1, 10000000}, avctx->pkt_timebase);
607 frame->pts = parsed_frame.dispinfo.timestamp;
609 if (parsed_frame.second_field) {
610 if (ctx->prev_pts == INT64_MIN) {
611 ctx->prev_pts = frame->pts;
612 frame->pts += (avctx->pkt_timebase.den * avctx->framerate.den) / (avctx->pkt_timebase.num * avctx->framerate.num);
614 int pts_diff = (frame->pts - ctx->prev_pts) / 2;
615 ctx->prev_pts = frame->pts;
616 frame->pts += pts_diff;
620 /* CUVIDs opaque reordering breaks the internal pkt logic.
621 * So set pkt_pts and clear all the other pkt_ fields.
624 FF_DISABLE_DEPRECATION_WARNINGS
625 frame->pkt_pts = frame->pts;
626 FF_ENABLE_DEPRECATION_WARNINGS
629 frame->pkt_duration = 0;
630 frame->pkt_size = -1;
632 frame->interlaced_frame = !parsed_frame.is_deinterlacing && !parsed_frame.dispinfo.progressive_frame;
634 if (frame->interlaced_frame)
635 frame->top_field_first = parsed_frame.dispinfo.top_field_first;
636 } else if (ctx->decoder_flushing) {
639 ret = AVERROR(EAGAIN);
644 eret = CHECK_CU(ctx->cvdl->cuvidUnmapVideoFrame(ctx->cudecoder, mapped_frame));
646 eret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
654 static int cuvid_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
656 CuvidContext *ctx = avctx->priv_data;
657 AVFrame *frame = data;
660 av_log(avctx, AV_LOG_TRACE, "cuvid_decode_frame\n");
662 if (ctx->deint_mode_current != cudaVideoDeinterlaceMode_Weave) {
663 av_log(avctx, AV_LOG_ERROR, "Deinterlacing is not supported via the old API\n");
664 return AVERROR(EINVAL);
667 if (!ctx->decoder_flushing) {
668 ret = cuvid_decode_packet(avctx, avpkt);
673 ret = cuvid_output_frame(avctx, frame);
674 if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
676 } else if (ret < 0) {
685 static av_cold int cuvid_decode_end(AVCodecContext *avctx)
687 CuvidContext *ctx = avctx->priv_data;
689 av_fifo_freep(&ctx->frame_queue);
692 av_bsf_free(&ctx->bsf);
695 ctx->cvdl->cuvidDestroyVideoParser(ctx->cuparser);
698 ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);
702 av_buffer_unref(&ctx->hwframe);
703 av_buffer_unref(&ctx->hwdevice);
705 av_freep(&ctx->key_frame);
707 cuvid_free_functions(&ctx->cvdl);
712 static int cuvid_test_capabilities(AVCodecContext *avctx,
713 const CUVIDPARSERPARAMS *cuparseinfo,
718 CuvidContext *ctx = avctx->priv_data;
719 CUVIDDECODECAPS *caps;
720 int res8 = 0, res10 = 0, res12 = 0;
722 if (!ctx->cvdl->cuvidGetDecoderCaps) {
723 av_log(avctx, AV_LOG_WARNING, "Used Nvidia driver is too old to perform a capability check.\n");
724 av_log(avctx, AV_LOG_WARNING, "The minimum required version is "
725 #if defined(_WIN32) || defined(__CYGWIN__)
730 ". Continuing blind.\n");
731 ctx->caps8.bIsSupported = ctx->caps10.bIsSupported = 1;
732 // 12 bit was not supported before the capability check was introduced, so disable it.
733 ctx->caps12.bIsSupported = 0;
737 ctx->caps8.eCodecType = ctx->caps10.eCodecType = ctx->caps12.eCodecType
738 = cuparseinfo->CodecType;
739 ctx->caps8.eChromaFormat = ctx->caps10.eChromaFormat = ctx->caps12.eChromaFormat
740 = cudaVideoChromaFormat_420;
742 ctx->caps8.nBitDepthMinus8 = 0;
743 ctx->caps10.nBitDepthMinus8 = 2;
744 ctx->caps12.nBitDepthMinus8 = 4;
746 res8 = CHECK_CU(ctx->cvdl->cuvidGetDecoderCaps(&ctx->caps8));
747 res10 = CHECK_CU(ctx->cvdl->cuvidGetDecoderCaps(&ctx->caps10));
748 res12 = CHECK_CU(ctx->cvdl->cuvidGetDecoderCaps(&ctx->caps12));
750 av_log(avctx, AV_LOG_VERBOSE, "CUVID capabilities for %s:\n", avctx->codec->name);
751 av_log(avctx, AV_LOG_VERBOSE, "8 bit: supported: %d, min_width: %d, max_width: %d, min_height: %d, max_height: %d\n",
752 ctx->caps8.bIsSupported, ctx->caps8.nMinWidth, ctx->caps8.nMaxWidth, ctx->caps8.nMinHeight, ctx->caps8.nMaxHeight);
753 av_log(avctx, AV_LOG_VERBOSE, "10 bit: supported: %d, min_width: %d, max_width: %d, min_height: %d, max_height: %d\n",
754 ctx->caps10.bIsSupported, ctx->caps10.nMinWidth, ctx->caps10.nMaxWidth, ctx->caps10.nMinHeight, ctx->caps10.nMaxHeight);
755 av_log(avctx, AV_LOG_VERBOSE, "12 bit: supported: %d, min_width: %d, max_width: %d, min_height: %d, max_height: %d\n",
756 ctx->caps12.bIsSupported, ctx->caps12.nMinWidth, ctx->caps12.nMaxWidth, ctx->caps12.nMinHeight, ctx->caps12.nMaxHeight);
775 if (!ctx->caps8.bIsSupported) {
776 av_log(avctx, AV_LOG_ERROR, "Codec %s is not supported.\n", avctx->codec->name);
777 return AVERROR(EINVAL);
780 if (!caps->bIsSupported) {
781 av_log(avctx, AV_LOG_ERROR, "Bit depth %d is not supported.\n", bit_depth);
782 return AVERROR(EINVAL);
785 if (probed_width > caps->nMaxWidth || probed_width < caps->nMinWidth) {
786 av_log(avctx, AV_LOG_ERROR, "Video width %d not within range from %d to %d\n",
787 probed_width, caps->nMinWidth, caps->nMaxWidth);
788 return AVERROR(EINVAL);
791 if (probed_height > caps->nMaxHeight || probed_height < caps->nMinHeight) {
792 av_log(avctx, AV_LOG_ERROR, "Video height %d not within range from %d to %d\n",
793 probed_height, caps->nMinHeight, caps->nMaxHeight);
794 return AVERROR(EINVAL);
800 static av_cold int cuvid_decode_init(AVCodecContext *avctx)
802 CuvidContext *ctx = avctx->priv_data;
803 AVCUDADeviceContext *device_hwctx;
804 AVHWDeviceContext *device_ctx;
805 AVHWFramesContext *hwframe_ctx;
806 CUVIDSOURCEDATAPACKET seq_pkt;
807 CUcontext cuda_ctx = NULL;
809 const AVBitStreamFilter *bsf;
812 enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_CUDA,
816 int probed_width = avctx->coded_width ? avctx->coded_width : 1280;
817 int probed_height = avctx->coded_height ? avctx->coded_height : 720;
818 int probed_bit_depth = 8;
820 const AVPixFmtDescriptor *probe_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
821 if (probe_desc && probe_desc->nb_components)
822 probed_bit_depth = probe_desc->comp[0].depth;
824 // Accelerated transcoding scenarios with 'ffmpeg' require that the
825 // pix_fmt be set to AV_PIX_FMT_CUDA early. The sw_pix_fmt, and the
826 // pix_fmt for non-accelerated transcoding, do not need to be correct
827 // but need to be set to something. We arbitrarily pick NV12.
828 ret = ff_get_format(avctx, pix_fmts);
830 av_log(avctx, AV_LOG_ERROR, "ff_get_format failed: %d\n", ret);
833 avctx->pix_fmt = ret;
835 if (ctx->resize_expr && sscanf(ctx->resize_expr, "%dx%d",
836 &ctx->resize.width, &ctx->resize.height) != 2) {
837 av_log(avctx, AV_LOG_ERROR, "Invalid resize expressions\n");
838 ret = AVERROR(EINVAL);
842 if (ctx->crop_expr && sscanf(ctx->crop_expr, "%dx%dx%dx%d",
843 &ctx->crop.top, &ctx->crop.bottom,
844 &ctx->crop.left, &ctx->crop.right) != 4) {
845 av_log(avctx, AV_LOG_ERROR, "Invalid cropping expressions\n");
846 ret = AVERROR(EINVAL);
850 ret = cuvid_load_functions(&ctx->cvdl, avctx);
852 av_log(avctx, AV_LOG_ERROR, "Failed loading nvcuvid.\n");
856 ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
857 if (!ctx->frame_queue) {
858 ret = AVERROR(ENOMEM);
862 if (avctx->hw_frames_ctx) {
863 ctx->hwframe = av_buffer_ref(avctx->hw_frames_ctx);
865 ret = AVERROR(ENOMEM);
869 hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
871 ctx->hwdevice = av_buffer_ref(hwframe_ctx->device_ref);
872 if (!ctx->hwdevice) {
873 ret = AVERROR(ENOMEM);
877 if (avctx->hw_device_ctx) {
878 ctx->hwdevice = av_buffer_ref(avctx->hw_device_ctx);
879 if (!ctx->hwdevice) {
880 ret = AVERROR(ENOMEM);
884 ret = av_hwdevice_ctx_create(&ctx->hwdevice, AV_HWDEVICE_TYPE_CUDA, ctx->cu_gpu, NULL, 0);
889 ctx->hwframe = av_hwframe_ctx_alloc(ctx->hwdevice);
891 av_log(avctx, AV_LOG_ERROR, "av_hwframe_ctx_alloc failed\n");
892 ret = AVERROR(ENOMEM);
896 hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
899 device_ctx = hwframe_ctx->device_ctx;
900 device_hwctx = device_ctx->hwctx;
902 cuda_ctx = device_hwctx->cuda_ctx;
903 ctx->cudl = device_hwctx->internal->cuda_dl;
905 memset(&ctx->cuparseinfo, 0, sizeof(ctx->cuparseinfo));
906 memset(&ctx->cuparse_ext, 0, sizeof(ctx->cuparse_ext));
907 memset(&seq_pkt, 0, sizeof(seq_pkt));
909 ctx->cuparseinfo.pExtVideoInfo = &ctx->cuparse_ext;
911 switch (avctx->codec->id) {
912 #if CONFIG_H264_CUVID_DECODER
913 case AV_CODEC_ID_H264:
914 ctx->cuparseinfo.CodecType = cudaVideoCodec_H264;
917 #if CONFIG_HEVC_CUVID_DECODER
918 case AV_CODEC_ID_HEVC:
919 ctx->cuparseinfo.CodecType = cudaVideoCodec_HEVC;
922 #if CONFIG_MJPEG_CUVID_DECODER
923 case AV_CODEC_ID_MJPEG:
924 ctx->cuparseinfo.CodecType = cudaVideoCodec_JPEG;
927 #if CONFIG_MPEG1_CUVID_DECODER
928 case AV_CODEC_ID_MPEG1VIDEO:
929 ctx->cuparseinfo.CodecType = cudaVideoCodec_MPEG1;
932 #if CONFIG_MPEG2_CUVID_DECODER
933 case AV_CODEC_ID_MPEG2VIDEO:
934 ctx->cuparseinfo.CodecType = cudaVideoCodec_MPEG2;
937 #if CONFIG_MPEG4_CUVID_DECODER
938 case AV_CODEC_ID_MPEG4:
939 ctx->cuparseinfo.CodecType = cudaVideoCodec_MPEG4;
942 #if CONFIG_VP8_CUVID_DECODER
943 case AV_CODEC_ID_VP8:
944 ctx->cuparseinfo.CodecType = cudaVideoCodec_VP8;
947 #if CONFIG_VP9_CUVID_DECODER
948 case AV_CODEC_ID_VP9:
949 ctx->cuparseinfo.CodecType = cudaVideoCodec_VP9;
952 #if CONFIG_VC1_CUVID_DECODER
953 case AV_CODEC_ID_VC1:
954 ctx->cuparseinfo.CodecType = cudaVideoCodec_VC1;
958 av_log(avctx, AV_LOG_ERROR, "Invalid CUVID codec!\n");
962 if (avctx->codec->id == AV_CODEC_ID_H264 || avctx->codec->id == AV_CODEC_ID_HEVC) {
963 if (avctx->codec->id == AV_CODEC_ID_H264)
964 bsf = av_bsf_get_by_name("h264_mp4toannexb");
966 bsf = av_bsf_get_by_name("hevc_mp4toannexb");
969 ret = AVERROR_BSF_NOT_FOUND;
972 if (ret = av_bsf_alloc(bsf, &ctx->bsf)) {
975 if (((ret = avcodec_parameters_from_context(ctx->bsf->par_in, avctx)) < 0) || ((ret = av_bsf_init(ctx->bsf)) < 0)) {
976 av_bsf_free(&ctx->bsf);
980 ctx->cuparse_ext.format.seqhdr_data_length = ctx->bsf->par_out->extradata_size;
981 memcpy(ctx->cuparse_ext.raw_seqhdr_data,
982 ctx->bsf->par_out->extradata,
983 FFMIN(sizeof(ctx->cuparse_ext.raw_seqhdr_data), ctx->bsf->par_out->extradata_size));
984 } else if (avctx->extradata_size > 0) {
985 ctx->cuparse_ext.format.seqhdr_data_length = avctx->extradata_size;
986 memcpy(ctx->cuparse_ext.raw_seqhdr_data,
988 FFMIN(sizeof(ctx->cuparse_ext.raw_seqhdr_data), avctx->extradata_size));
991 ctx->key_frame = av_mallocz(ctx->nb_surfaces * sizeof(int));
992 if (!ctx->key_frame) {
993 ret = AVERROR(ENOMEM);
997 ctx->cuparseinfo.ulMaxNumDecodeSurfaces = ctx->nb_surfaces;
998 ctx->cuparseinfo.ulMaxDisplayDelay = 4;
999 ctx->cuparseinfo.pUserData = avctx;
1000 ctx->cuparseinfo.pfnSequenceCallback = cuvid_handle_video_sequence;
1001 ctx->cuparseinfo.pfnDecodePicture = cuvid_handle_picture_decode;
1002 ctx->cuparseinfo.pfnDisplayPicture = cuvid_handle_picture_display;
1004 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
1008 ret = cuvid_test_capabilities(avctx, &ctx->cuparseinfo,
1015 ret = CHECK_CU(ctx->cvdl->cuvidCreateVideoParser(&ctx->cuparser, &ctx->cuparseinfo));
1019 seq_pkt.payload = ctx->cuparse_ext.raw_seqhdr_data;
1020 seq_pkt.payload_size = ctx->cuparse_ext.format.seqhdr_data_length;
1022 if (seq_pkt.payload && seq_pkt.payload_size) {
1023 ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &seq_pkt));
1028 ret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
1032 ctx->prev_pts = INT64_MIN;
1034 if (!avctx->pkt_timebase.num || !avctx->pkt_timebase.den)
1035 av_log(avctx, AV_LOG_WARNING, "Invalid pkt_timebase, passing timestamps as-is.\n");
1040 cuvid_decode_end(avctx);
1044 static void cuvid_flush(AVCodecContext *avctx)
1046 CuvidContext *ctx = avctx->priv_data;
1047 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
1048 AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
1049 CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
1050 CUVIDSOURCEDATAPACKET seq_pkt = { 0 };
1053 ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
1057 av_fifo_freep(&ctx->frame_queue);
1059 ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
1060 if (!ctx->frame_queue) {
1061 av_log(avctx, AV_LOG_ERROR, "Failed to recreate frame queue on flush\n");
1065 if (ctx->cudecoder) {
1066 ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);
1067 ctx->cudecoder = NULL;
1070 if (ctx->cuparser) {
1071 ctx->cvdl->cuvidDestroyVideoParser(ctx->cuparser);
1072 ctx->cuparser = NULL;
1075 ret = CHECK_CU(ctx->cvdl->cuvidCreateVideoParser(&ctx->cuparser, &ctx->cuparseinfo));
1079 seq_pkt.payload = ctx->cuparse_ext.raw_seqhdr_data;
1080 seq_pkt.payload_size = ctx->cuparse_ext.format.seqhdr_data_length;
1082 if (seq_pkt.payload && seq_pkt.payload_size) {
1083 ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &seq_pkt));
1088 ret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
1092 ctx->prev_pts = INT64_MIN;
1093 ctx->decoder_flushing = 0;
1097 av_log(avctx, AV_LOG_ERROR, "CUDA reinit on flush failed\n");
1100 #define OFFSET(x) offsetof(CuvidContext, x)
1101 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
1102 static const AVOption options[] = {
1103 { "deint", "Set deinterlacing mode", OFFSET(deint_mode), AV_OPT_TYPE_INT, { .i64 = cudaVideoDeinterlaceMode_Weave }, cudaVideoDeinterlaceMode_Weave, cudaVideoDeinterlaceMode_Adaptive, VD, "deint" },
1104 { "weave", "Weave deinterlacing (do nothing)", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Weave }, 0, 0, VD, "deint" },
1105 { "bob", "Bob deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Bob }, 0, 0, VD, "deint" },
1106 { "adaptive", "Adaptive deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Adaptive }, 0, 0, VD, "deint" },
1107 { "gpu", "GPU to be used for decoding", OFFSET(cu_gpu), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1108 { "surfaces", "Maximum surfaces to be used for decoding", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, INT_MAX, VD },
1109 { "drop_second_field", "Drop second field when deinterlacing", OFFSET(drop_second_field), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
1110 { "crop", "Crop (top)x(bottom)x(left)x(right)", OFFSET(crop_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1111 { "resize", "Resize (width)x(height)", OFFSET(resize_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1115 static const AVCodecHWConfigInternal *cuvid_hw_configs[] = {
1116 &(const AVCodecHWConfigInternal) {
1118 .pix_fmt = AV_PIX_FMT_CUDA,
1119 .methods = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX |
1120 AV_CODEC_HW_CONFIG_METHOD_INTERNAL,
1121 .device_type = AV_HWDEVICE_TYPE_CUDA
1128 #define DEFINE_CUVID_CODEC(x, X) \
1129 static const AVClass x##_cuvid_class = { \
1130 .class_name = #x "_cuvid", \
1131 .item_name = av_default_item_name, \
1132 .option = options, \
1133 .version = LIBAVUTIL_VERSION_INT, \
1135 AVCodec ff_##x##_cuvid_decoder = { \
1136 .name = #x "_cuvid", \
1137 .long_name = NULL_IF_CONFIG_SMALL("Nvidia CUVID " #X " decoder"), \
1138 .type = AVMEDIA_TYPE_VIDEO, \
1139 .id = AV_CODEC_ID_##X, \
1140 .priv_data_size = sizeof(CuvidContext), \
1141 .priv_class = &x##_cuvid_class, \
1142 .init = cuvid_decode_init, \
1143 .close = cuvid_decode_end, \
1144 .decode = cuvid_decode_frame, \
1145 .receive_frame = cuvid_output_frame, \
1146 .flush = cuvid_flush, \
1147 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HARDWARE, \
1148 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_CUDA, \
1152 AV_PIX_FMT_NONE }, \
1153 .hw_configs = cuvid_hw_configs, \
1154 .wrapper_name = "cuvid", \
1157 #if CONFIG_HEVC_CUVID_DECODER
1158 DEFINE_CUVID_CODEC(hevc, HEVC)
1161 #if CONFIG_H264_CUVID_DECODER
1162 DEFINE_CUVID_CODEC(h264, H264)
1165 #if CONFIG_MJPEG_CUVID_DECODER
1166 DEFINE_CUVID_CODEC(mjpeg, MJPEG)
1169 #if CONFIG_MPEG1_CUVID_DECODER
1170 DEFINE_CUVID_CODEC(mpeg1, MPEG1VIDEO)
1173 #if CONFIG_MPEG2_CUVID_DECODER
1174 DEFINE_CUVID_CODEC(mpeg2, MPEG2VIDEO)
1177 #if CONFIG_MPEG4_CUVID_DECODER
1178 DEFINE_CUVID_CODEC(mpeg4, MPEG4)
1181 #if CONFIG_VP8_CUVID_DECODER
1182 DEFINE_CUVID_CODEC(vp8, VP8)
1185 #if CONFIG_VP9_CUVID_DECODER
1186 DEFINE_CUVID_CODEC(vp9, VP9)
1189 #if CONFIG_VC1_CUVID_DECODER
1190 DEFINE_CUVID_CODEC(vc1, VC1)