2 * H.264 hardware encoding using nvidia nvenc
3 * Copyright (c) 2014 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
28 #include <nvEncodeAPI.h>
30 #include "libavutil/internal.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/avassert.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/mem.h"
40 #define CUDAAPI __stdcall
46 #define LOAD_FUNC(l, s) GetProcAddress(l, s)
47 #define DL_CLOSE_FUNC(l) FreeLibrary(l)
49 #define LOAD_FUNC(l, s) dlsym(l, s)
50 #define DL_CLOSE_FUNC(l) dlclose(l)
53 typedef enum cudaError_enum {
57 typedef void* CUcontext;
59 typedef CUresult(CUDAAPI *PCUINIT)(unsigned int Flags);
60 typedef CUresult(CUDAAPI *PCUDEVICEGETCOUNT)(int *count);
61 typedef CUresult(CUDAAPI *PCUDEVICEGET)(CUdevice *device, int ordinal);
62 typedef CUresult(CUDAAPI *PCUDEVICEGETNAME)(char *name, int len, CUdevice dev);
63 typedef CUresult(CUDAAPI *PCUDEVICECOMPUTECAPABILITY)(int *major, int *minor, CUdevice dev);
64 typedef CUresult(CUDAAPI *PCUCTXCREATE)(CUcontext *pctx, unsigned int flags, CUdevice dev);
65 typedef CUresult(CUDAAPI *PCUCTXPOPCURRENT)(CUcontext *pctx);
66 typedef CUresult(CUDAAPI *PCUCTXDESTROY)(CUcontext ctx);
68 typedef NVENCSTATUS (NVENCAPI* PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList);
70 typedef struct NvencInputSurface
72 NV_ENC_INPUT_PTR input_surface;
78 NV_ENC_BUFFER_FORMAT format;
81 typedef struct NvencOutputSurface
83 NV_ENC_OUTPUT_PTR output_surface;
86 NvencInputSurface* input_surface;
91 typedef struct NvencData
95 NvencOutputSurface *surface;
99 typedef struct NvencDataList
108 typedef struct NvencDynLoadFunctions
111 PCUDEVICEGETCOUNT cu_device_get_count;
112 PCUDEVICEGET cu_device_get;
113 PCUDEVICEGETNAME cu_device_get_name;
114 PCUDEVICECOMPUTECAPABILITY cu_device_compute_capability;
115 PCUCTXCREATE cu_ctx_create;
116 PCUCTXPOPCURRENT cu_ctx_pop_current;
117 PCUCTXDESTROY cu_ctx_destroy;
119 NV_ENCODE_API_FUNCTION_LIST nvenc_funcs;
120 int nvenc_device_count;
121 CUdevice nvenc_devices[16];
130 } NvencDynLoadFunctions;
132 typedef struct NvencValuePair
138 typedef struct NvencContext
142 NvencDynLoadFunctions nvenc_dload_funcs;
144 NV_ENC_INITIALIZE_PARAMS init_encode_params;
145 NV_ENC_CONFIG encode_config;
146 CUcontext cu_context;
148 int max_surface_count;
149 NvencInputSurface *input_surfaces;
150 NvencOutputSurface *output_surfaces;
152 NvencDataList output_surface_queue;
153 NvencDataList output_surface_ready_queue;
154 NvencDataList timestamp_list;
169 static const NvencValuePair nvenc_h264_level_pairs[] = {
170 { "auto", NV_ENC_LEVEL_AUTOSELECT },
171 { "1" , NV_ENC_LEVEL_H264_1 },
172 { "1.0" , NV_ENC_LEVEL_H264_1 },
173 { "1b" , NV_ENC_LEVEL_H264_1b },
174 { "1.0b", NV_ENC_LEVEL_H264_1b },
175 { "1.1" , NV_ENC_LEVEL_H264_11 },
176 { "1.2" , NV_ENC_LEVEL_H264_12 },
177 { "1.3" , NV_ENC_LEVEL_H264_13 },
178 { "2" , NV_ENC_LEVEL_H264_2 },
179 { "2.0" , NV_ENC_LEVEL_H264_2 },
180 { "2.1" , NV_ENC_LEVEL_H264_21 },
181 { "2.2" , NV_ENC_LEVEL_H264_22 },
182 { "3" , NV_ENC_LEVEL_H264_3 },
183 { "3.0" , NV_ENC_LEVEL_H264_3 },
184 { "3.1" , NV_ENC_LEVEL_H264_31 },
185 { "3.2" , NV_ENC_LEVEL_H264_32 },
186 { "4" , NV_ENC_LEVEL_H264_4 },
187 { "4.0" , NV_ENC_LEVEL_H264_4 },
188 { "4.1" , NV_ENC_LEVEL_H264_41 },
189 { "4.2" , NV_ENC_LEVEL_H264_42 },
190 { "5" , NV_ENC_LEVEL_H264_5 },
191 { "5.0" , NV_ENC_LEVEL_H264_5 },
192 { "5.1" , NV_ENC_LEVEL_H264_51 },
196 static const NvencValuePair nvenc_hevc_level_pairs[] = {
197 { "auto", NV_ENC_LEVEL_AUTOSELECT },
198 { "1" , NV_ENC_LEVEL_HEVC_1 },
199 { "1.0" , NV_ENC_LEVEL_HEVC_1 },
200 { "2" , NV_ENC_LEVEL_HEVC_2 },
201 { "2.0" , NV_ENC_LEVEL_HEVC_2 },
202 { "2.1" , NV_ENC_LEVEL_HEVC_21 },
203 { "3" , NV_ENC_LEVEL_HEVC_3 },
204 { "3.0" , NV_ENC_LEVEL_HEVC_3 },
205 { "3.1" , NV_ENC_LEVEL_HEVC_31 },
206 { "4" , NV_ENC_LEVEL_HEVC_4 },
207 { "4.0" , NV_ENC_LEVEL_HEVC_4 },
208 { "4.1" , NV_ENC_LEVEL_HEVC_41 },
209 { "5" , NV_ENC_LEVEL_HEVC_5 },
210 { "5.0" , NV_ENC_LEVEL_HEVC_5 },
211 { "5.1" , NV_ENC_LEVEL_HEVC_51 },
212 { "5.2" , NV_ENC_LEVEL_HEVC_52 },
213 { "6" , NV_ENC_LEVEL_HEVC_6 },
214 { "6.0" , NV_ENC_LEVEL_HEVC_6 },
215 { "6.1" , NV_ENC_LEVEL_HEVC_61 },
216 { "6.2" , NV_ENC_LEVEL_HEVC_62 },
220 static int input_string_to_uint32(AVCodecContext *avctx, const NvencValuePair *pair, const char *input, uint32_t *output)
222 for (; pair->str; ++pair) {
223 if (!strcmp(input, pair->str)) {
229 return AVERROR(EINVAL);
232 static NvencData* data_queue_dequeue(NvencDataList* queue)
238 av_assert0(queue->size);
239 av_assert0(queue->data);
244 /* Size always is a multiple of two */
245 mask = queue->size - 1;
246 read_pos = (queue->pos - queue->count) & mask;
249 return &queue->data[read_pos];
252 static int data_queue_enqueue(NvencDataList* queue, NvencData *data)
254 NvencDataList new_queue;
259 /* size always has to be a multiple of two */
264 queue->data = av_malloc(queue->size * sizeof(*(queue->data)));
268 return AVERROR(ENOMEM);
272 if (queue->count == queue->size) {
273 new_queue.size = queue->size << 1;
276 new_queue.data = av_malloc(new_queue.size * sizeof(*(queue->data)));
279 return AVERROR(ENOMEM);
281 while (tmp_data = data_queue_dequeue(queue))
282 data_queue_enqueue(&new_queue, tmp_data);
284 av_free(queue->data);
288 mask = queue->size - 1;
290 queue->data[queue->pos] = *data;
291 queue->pos = (queue->pos + 1) & mask;
297 static int out_surf_queue_enqueue(NvencDataList* queue, NvencOutputSurface* surface)
300 data.u.surface = surface;
302 return data_queue_enqueue(queue, &data);
305 static NvencOutputSurface* out_surf_queue_dequeue(NvencDataList* queue)
307 NvencData* res = data_queue_dequeue(queue);
312 return res->u.surface;
315 static int timestamp_queue_enqueue(NvencDataList* queue, int64_t timestamp)
318 data.u.timestamp = timestamp;
320 return data_queue_enqueue(queue, &data);
323 static int64_t timestamp_queue_dequeue(NvencDataList* queue)
325 NvencData* res = data_queue_dequeue(queue);
328 return AV_NOPTS_VALUE;
330 return res->u.timestamp;
333 #define CHECK_LOAD_FUNC(t, f, s) \
335 (f) = (t)LOAD_FUNC(dl_fn->cuda_lib, s); \
337 av_log(avctx, AV_LOG_FATAL, "Failed loading %s from CUDA library\n", s); \
342 static av_cold int nvenc_dyload_cuda(AVCodecContext *avctx)
344 NvencContext *ctx = avctx->priv_data;
345 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
351 dl_fn->cuda_lib = LoadLibrary(TEXT("nvcuda.dll"));
353 dl_fn->cuda_lib = dlopen("libcuda.so", RTLD_LAZY);
356 if (!dl_fn->cuda_lib) {
357 av_log(avctx, AV_LOG_FATAL, "Failed loading CUDA library\n");
361 CHECK_LOAD_FUNC(PCUINIT, dl_fn->cu_init, "cuInit");
362 CHECK_LOAD_FUNC(PCUDEVICEGETCOUNT, dl_fn->cu_device_get_count, "cuDeviceGetCount");
363 CHECK_LOAD_FUNC(PCUDEVICEGET, dl_fn->cu_device_get, "cuDeviceGet");
364 CHECK_LOAD_FUNC(PCUDEVICEGETNAME, dl_fn->cu_device_get_name, "cuDeviceGetName");
365 CHECK_LOAD_FUNC(PCUDEVICECOMPUTECAPABILITY, dl_fn->cu_device_compute_capability, "cuDeviceComputeCapability");
366 CHECK_LOAD_FUNC(PCUCTXCREATE, dl_fn->cu_ctx_create, "cuCtxCreate_v2");
367 CHECK_LOAD_FUNC(PCUCTXPOPCURRENT, dl_fn->cu_ctx_pop_current, "cuCtxPopCurrent_v2");
368 CHECK_LOAD_FUNC(PCUCTXDESTROY, dl_fn->cu_ctx_destroy, "cuCtxDestroy_v2");
375 DL_CLOSE_FUNC(dl_fn->cuda_lib);
377 dl_fn->cuda_lib = NULL;
382 static av_cold int check_cuda_errors(AVCodecContext *avctx, CUresult err, const char *func)
384 if (err != CUDA_SUCCESS) {
385 av_log(avctx, AV_LOG_FATAL, ">> %s - failed with error code 0x%x\n", func, err);
390 #define check_cuda_errors(f) if (!check_cuda_errors(avctx, f, #f)) goto error
392 static av_cold int nvenc_check_cuda(AVCodecContext *avctx)
394 int device_count = 0;
395 CUdevice cu_device = 0;
397 int smminor = 0, smmajor = 0;
398 int i, smver, target_smver;
400 NvencContext *ctx = avctx->priv_data;
401 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
403 switch (avctx->codec->id) {
404 case AV_CODEC_ID_H264:
405 target_smver = avctx->pix_fmt == AV_PIX_FMT_YUV444P ? 0x52 : 0x30;
407 case AV_CODEC_ID_H265:
411 av_log(avctx, AV_LOG_FATAL, "Unknown codec name\n");
415 if (!nvenc_dyload_cuda(avctx))
418 if (dl_fn->nvenc_device_count > 0)
421 check_cuda_errors(dl_fn->cu_init(0));
423 check_cuda_errors(dl_fn->cu_device_get_count(&device_count));
426 av_log(avctx, AV_LOG_FATAL, "No CUDA capable devices found\n");
430 av_log(avctx, AV_LOG_VERBOSE, "%d CUDA capable devices found\n", device_count);
432 dl_fn->nvenc_device_count = 0;
434 for (i = 0; i < device_count; ++i) {
435 check_cuda_errors(dl_fn->cu_device_get(&cu_device, i));
436 check_cuda_errors(dl_fn->cu_device_get_name(gpu_name, sizeof(gpu_name), cu_device));
437 check_cuda_errors(dl_fn->cu_device_compute_capability(&smmajor, &smminor, cu_device));
439 smver = (smmajor << 4) | smminor;
441 av_log(avctx, AV_LOG_VERBOSE, "[ GPU #%d - < %s > has Compute SM %d.%d, NVENC %s ]\n", i, gpu_name, smmajor, smminor, (smver >= target_smver) ? "Available" : "Not Available");
443 if (smver >= target_smver)
444 dl_fn->nvenc_devices[dl_fn->nvenc_device_count++] = cu_device;
447 if (!dl_fn->nvenc_device_count) {
448 av_log(avctx, AV_LOG_FATAL, "No NVENC capable devices found\n");
456 dl_fn->nvenc_device_count = 0;
461 static av_cold int nvenc_dyload_nvenc(AVCodecContext *avctx)
463 PNVENCODEAPICREATEINSTANCE nvEncodeAPICreateInstance = 0;
464 NVENCSTATUS nvstatus;
466 NvencContext *ctx = avctx->priv_data;
467 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
469 if (!nvenc_check_cuda(avctx))
472 if (dl_fn->nvenc_lib)
476 if (sizeof(void*) == 8) {
477 dl_fn->nvenc_lib = LoadLibrary(TEXT("nvEncodeAPI64.dll"));
479 dl_fn->nvenc_lib = LoadLibrary(TEXT("nvEncodeAPI.dll"));
482 dl_fn->nvenc_lib = dlopen("libnvidia-encode.so.1", RTLD_LAZY);
485 if (!dl_fn->nvenc_lib) {
486 av_log(avctx, AV_LOG_FATAL, "Failed loading the nvenc library\n");
490 nvEncodeAPICreateInstance = (PNVENCODEAPICREATEINSTANCE)LOAD_FUNC(dl_fn->nvenc_lib, "NvEncodeAPICreateInstance");
492 if (!nvEncodeAPICreateInstance) {
493 av_log(avctx, AV_LOG_FATAL, "Failed to load nvenc entrypoint\n");
497 dl_fn->nvenc_funcs.version = NV_ENCODE_API_FUNCTION_LIST_VER;
499 nvstatus = nvEncodeAPICreateInstance(&dl_fn->nvenc_funcs);
501 if (nvstatus != NV_ENC_SUCCESS) {
502 av_log(avctx, AV_LOG_FATAL, "Failed to create nvenc instance\n");
506 av_log(avctx, AV_LOG_VERBOSE, "Nvenc initialized successfully\n");
511 if (dl_fn->nvenc_lib)
512 DL_CLOSE_FUNC(dl_fn->nvenc_lib);
514 dl_fn->nvenc_lib = NULL;
519 static av_cold void nvenc_unload_nvenc(AVCodecContext *avctx)
521 NvencContext *ctx = avctx->priv_data;
522 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
524 DL_CLOSE_FUNC(dl_fn->nvenc_lib);
525 dl_fn->nvenc_lib = NULL;
527 dl_fn->nvenc_device_count = 0;
529 DL_CLOSE_FUNC(dl_fn->cuda_lib);
530 dl_fn->cuda_lib = NULL;
532 dl_fn->cu_init = NULL;
533 dl_fn->cu_device_get_count = NULL;
534 dl_fn->cu_device_get = NULL;
535 dl_fn->cu_device_get_name = NULL;
536 dl_fn->cu_device_compute_capability = NULL;
537 dl_fn->cu_ctx_create = NULL;
538 dl_fn->cu_ctx_pop_current = NULL;
539 dl_fn->cu_ctx_destroy = NULL;
541 av_log(avctx, AV_LOG_VERBOSE, "Nvenc unloaded\n");
544 static av_cold int nvenc_encode_init(AVCodecContext *avctx)
546 NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS encode_session_params = { 0 };
547 NV_ENC_PRESET_CONFIG preset_config = { 0 };
548 CUcontext cu_context_curr;
550 GUID encoder_preset = NV_ENC_PRESET_HQ_GUID;
552 NVENCSTATUS nv_status = NV_ENC_SUCCESS;
553 int surfaceCount = 0;
561 NvencContext *ctx = avctx->priv_data;
562 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
563 NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs;
565 if (!nvenc_dyload_nvenc(avctx))
566 return AVERROR_EXTERNAL;
568 ctx->last_dts = AV_NOPTS_VALUE;
570 ctx->encode_config.version = NV_ENC_CONFIG_VER;
571 ctx->init_encode_params.version = NV_ENC_INITIALIZE_PARAMS_VER;
572 preset_config.version = NV_ENC_PRESET_CONFIG_VER;
573 preset_config.presetCfg.version = NV_ENC_CONFIG_VER;
574 encode_session_params.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER;
575 encode_session_params.apiVersion = NVENCAPI_VERSION;
577 if (ctx->gpu >= dl_fn->nvenc_device_count) {
578 av_log(avctx, AV_LOG_FATAL, "Requested GPU %d, but only %d GPUs are available!\n", ctx->gpu, dl_fn->nvenc_device_count);
579 res = AVERROR(EINVAL);
583 ctx->cu_context = NULL;
584 cu_res = dl_fn->cu_ctx_create(&ctx->cu_context, 4, dl_fn->nvenc_devices[ctx->gpu]); // CU_CTX_SCHED_BLOCKING_SYNC=4, avoid CPU spins
586 if (cu_res != CUDA_SUCCESS) {
587 av_log(avctx, AV_LOG_FATAL, "Failed creating CUDA context for NVENC: 0x%x\n", (int)cu_res);
588 res = AVERROR_EXTERNAL;
592 cu_res = dl_fn->cu_ctx_pop_current(&cu_context_curr);
594 if (cu_res != CUDA_SUCCESS) {
595 av_log(avctx, AV_LOG_FATAL, "Failed popping CUDA context: 0x%x\n", (int)cu_res);
596 res = AVERROR_EXTERNAL;
600 encode_session_params.device = ctx->cu_context;
601 encode_session_params.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
603 nv_status = p_nvenc->nvEncOpenEncodeSessionEx(&encode_session_params, &ctx->nvencoder);
604 if (nv_status != NV_ENC_SUCCESS) {
605 ctx->nvencoder = NULL;
606 av_log(avctx, AV_LOG_FATAL, "OpenEncodeSessionEx failed: 0x%x\n", (int)nv_status);
607 res = AVERROR_EXTERNAL;
612 if (!strcmp(ctx->preset, "slow")) {
613 encoder_preset = NV_ENC_PRESET_HQ_GUID;
615 } else if (!strcmp(ctx->preset, "medium")) {
616 encoder_preset = NV_ENC_PRESET_HQ_GUID;
618 } else if (!strcmp(ctx->preset, "fast")) {
619 encoder_preset = NV_ENC_PRESET_HP_GUID;
621 } else if (!strcmp(ctx->preset, "hq")) {
622 encoder_preset = NV_ENC_PRESET_HQ_GUID;
623 } else if (!strcmp(ctx->preset, "hp")) {
624 encoder_preset = NV_ENC_PRESET_HP_GUID;
625 } else if (!strcmp(ctx->preset, "bd")) {
626 encoder_preset = NV_ENC_PRESET_BD_GUID;
627 } else if (!strcmp(ctx->preset, "ll")) {
628 encoder_preset = NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID;
630 } else if (!strcmp(ctx->preset, "llhp")) {
631 encoder_preset = NV_ENC_PRESET_LOW_LATENCY_HP_GUID;
633 } else if (!strcmp(ctx->preset, "llhq")) {
634 encoder_preset = NV_ENC_PRESET_LOW_LATENCY_HQ_GUID;
636 } else if (!strcmp(ctx->preset, "lossless")) {
637 encoder_preset = NV_ENC_PRESET_LOSSLESS_DEFAULT_GUID;
639 } else if (!strcmp(ctx->preset, "losslesshp")) {
640 encoder_preset = NV_ENC_PRESET_LOSSLESS_HP_GUID;
642 } else if (!strcmp(ctx->preset, "default")) {
643 encoder_preset = NV_ENC_PRESET_DEFAULT_GUID;
645 av_log(avctx, AV_LOG_FATAL, "Preset \"%s\" is unknown! Supported presets: slow, medium, high, hp, hq, bd, ll, llhp, llhq, lossless, losslesshp, default\n", ctx->preset);
646 res = AVERROR(EINVAL);
651 if (ctx->twopass < 0) {
655 switch (avctx->codec->id) {
656 case AV_CODEC_ID_H264:
657 codec = NV_ENC_CODEC_H264_GUID;
659 case AV_CODEC_ID_H265:
660 codec = NV_ENC_CODEC_HEVC_GUID;
663 av_log(avctx, AV_LOG_ERROR, "Unknown codec name\n");
664 res = AVERROR(EINVAL);
668 nv_status = p_nvenc->nvEncGetEncodePresetConfig(ctx->nvencoder, codec, encoder_preset, &preset_config);
669 if (nv_status != NV_ENC_SUCCESS) {
670 av_log(avctx, AV_LOG_FATAL, "GetEncodePresetConfig failed: 0x%x\n", (int)nv_status);
671 res = AVERROR_EXTERNAL;
675 ctx->init_encode_params.encodeGUID = codec;
676 ctx->init_encode_params.encodeHeight = avctx->height;
677 ctx->init_encode_params.encodeWidth = avctx->width;
679 if (avctx->sample_aspect_ratio.num && avctx->sample_aspect_ratio.den &&
680 (avctx->sample_aspect_ratio.num != 1 || avctx->sample_aspect_ratio.num != 1)) {
682 avctx->width * avctx->sample_aspect_ratio.num,
683 avctx->height * avctx->sample_aspect_ratio.den,
685 ctx->init_encode_params.darHeight = dh;
686 ctx->init_encode_params.darWidth = dw;
688 ctx->init_encode_params.darHeight = avctx->height;
689 ctx->init_encode_params.darWidth = avctx->width;
692 // De-compensate for hardware, dubiously, trying to compensate for
693 // playback at 704 pixel width.
694 if (avctx->width == 720 &&
695 (avctx->height == 480 || avctx->height == 576)) {
697 ctx->init_encode_params.darWidth * 44,
698 ctx->init_encode_params.darHeight * 45,
700 ctx->init_encode_params.darHeight = dh;
701 ctx->init_encode_params.darWidth = dw;
704 ctx->init_encode_params.frameRateNum = avctx->time_base.den;
705 ctx->init_encode_params.frameRateDen = avctx->time_base.num * avctx->ticks_per_frame;
707 num_mbs = ((avctx->width + 15) >> 4) * ((avctx->height + 15) >> 4);
708 ctx->max_surface_count = (num_mbs >= 8160) ? 32 : 48;
710 if (ctx->buffer_delay >= ctx->max_surface_count)
711 ctx->buffer_delay = ctx->max_surface_count - 1;
713 ctx->init_encode_params.enableEncodeAsync = 0;
714 ctx->init_encode_params.enablePTD = 1;
716 ctx->init_encode_params.presetGUID = encoder_preset;
718 ctx->init_encode_params.encodeConfig = &ctx->encode_config;
719 memcpy(&ctx->encode_config, &preset_config.presetCfg, sizeof(ctx->encode_config));
720 ctx->encode_config.version = NV_ENC_CONFIG_VER;
722 if (avctx->refs >= 0) {
723 /* 0 means "let the hardware decide" */
724 switch (avctx->codec->id) {
725 case AV_CODEC_ID_H264:
726 ctx->encode_config.encodeCodecConfig.h264Config.maxNumRefFrames = avctx->refs;
728 case AV_CODEC_ID_H265:
729 ctx->encode_config.encodeCodecConfig.hevcConfig.maxNumRefFramesInDPB = avctx->refs;
731 /* Earlier switch/case will return if unknown codec is passed. */
735 if (avctx->gop_size > 0) {
736 if (avctx->max_b_frames >= 0) {
737 /* 0 is intra-only, 1 is I/P only, 2 is one B Frame, 3 two B frames, and so on. */
738 ctx->encode_config.frameIntervalP = avctx->max_b_frames + 1;
741 ctx->encode_config.gopLength = avctx->gop_size;
742 switch (avctx->codec->id) {
743 case AV_CODEC_ID_H264:
744 ctx->encode_config.encodeCodecConfig.h264Config.idrPeriod = avctx->gop_size;
746 case AV_CODEC_ID_H265:
747 ctx->encode_config.encodeCodecConfig.hevcConfig.idrPeriod = avctx->gop_size;
749 /* Earlier switch/case will return if unknown codec is passed. */
751 } else if (avctx->gop_size == 0) {
752 ctx->encode_config.frameIntervalP = 0;
753 ctx->encode_config.gopLength = 1;
754 switch (avctx->codec->id) {
755 case AV_CODEC_ID_H264:
756 ctx->encode_config.encodeCodecConfig.h264Config.idrPeriod = 1;
758 case AV_CODEC_ID_H265:
759 ctx->encode_config.encodeCodecConfig.hevcConfig.idrPeriod = 1;
761 /* Earlier switch/case will return if unknown codec is passed. */
765 /* when there're b frames, set dts offset */
766 if (ctx->encode_config.frameIntervalP >= 2)
769 if (avctx->bit_rate > 0)
770 ctx->encode_config.rcParams.averageBitRate = avctx->bit_rate;
772 if (avctx->rc_max_rate > 0)
773 ctx->encode_config.rcParams.maxBitRate = avctx->rc_max_rate;
776 if (avctx->codec->id == AV_CODEC_ID_H264)
777 ctx->encode_config.encodeCodecConfig.h264Config.qpPrimeYZeroTransformBypassFlag = 1;
779 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CONSTQP;
780 ctx->encode_config.rcParams.constQP.qpInterB = 0;
781 ctx->encode_config.rcParams.constQP.qpInterP = 0;
782 ctx->encode_config.rcParams.constQP.qpIntra = 0;
786 } else if (ctx->cbr) {
788 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CBR;
790 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_2_PASS_QUALITY;
792 if (avctx->codec->id == AV_CODEC_ID_H264) {
793 ctx->encode_config.encodeCodecConfig.h264Config.adaptiveTransformMode = NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE;
794 ctx->encode_config.encodeCodecConfig.h264Config.fmoMode = NV_ENC_H264_FMO_DISABLE;
797 } else if (avctx->global_quality > 0) {
798 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CONSTQP;
799 ctx->encode_config.rcParams.constQP.qpInterB = avctx->global_quality;
800 ctx->encode_config.rcParams.constQP.qpInterP = avctx->global_quality;
801 ctx->encode_config.rcParams.constQP.qpIntra = avctx->global_quality;
806 if (avctx->qmin >= 0 && avctx->qmax >= 0) {
807 ctx->encode_config.rcParams.enableMinQP = 1;
808 ctx->encode_config.rcParams.enableMaxQP = 1;
810 ctx->encode_config.rcParams.minQP.qpInterB = avctx->qmin;
811 ctx->encode_config.rcParams.minQP.qpInterP = avctx->qmin;
812 ctx->encode_config.rcParams.minQP.qpIntra = avctx->qmin;
814 ctx->encode_config.rcParams.maxQP.qpInterB = avctx->qmax;
815 ctx->encode_config.rcParams.maxQP.qpInterP = avctx->qmax;
816 ctx->encode_config.rcParams.maxQP.qpIntra = avctx->qmax;
818 qp_inter_p = (avctx->qmax + 3 * avctx->qmin) / 4; // biased towards Qmin
821 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_2_PASS_VBR;
822 if (avctx->codec->id == AV_CODEC_ID_H264) {
823 ctx->encode_config.encodeCodecConfig.h264Config.adaptiveTransformMode = NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE;
824 ctx->encode_config.encodeCodecConfig.h264Config.fmoMode = NV_ENC_H264_FMO_DISABLE;
827 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_VBR_MINQP;
830 qp_inter_p = 26; // default to 26
833 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_2_PASS_VBR;
835 ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_VBR;
839 ctx->encode_config.rcParams.enableInitialRCQP = 1;
840 ctx->encode_config.rcParams.initialRCQP.qpInterP = qp_inter_p;
842 if(avctx->i_quant_factor != 0.0 && avctx->b_quant_factor != 0.0) {
843 ctx->encode_config.rcParams.initialRCQP.qpIntra = qp_inter_p * fabs(avctx->i_quant_factor);
844 ctx->encode_config.rcParams.initialRCQP.qpIntra += avctx->i_quant_offset;
845 ctx->encode_config.rcParams.initialRCQP.qpInterB = qp_inter_p * fabs(avctx->b_quant_factor);
846 ctx->encode_config.rcParams.initialRCQP.qpInterB += avctx->b_quant_offset;
848 ctx->encode_config.rcParams.initialRCQP.qpIntra = qp_inter_p;
849 ctx->encode_config.rcParams.initialRCQP.qpInterB = qp_inter_p;
853 if (avctx->rc_buffer_size > 0)
854 ctx->encode_config.rcParams.vbvBufferSize = avctx->rc_buffer_size;
856 if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {
857 ctx->encode_config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FIELD;
859 ctx->encode_config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME;
862 switch (avctx->codec->id) {
863 case AV_CODEC_ID_H264:
864 ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourDescriptionPresentFlag = 1;
865 ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.videoSignalTypePresentFlag = 1;
867 ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourMatrix = avctx->colorspace;
868 ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourPrimaries = avctx->color_primaries;
869 ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.transferCharacteristics = avctx->color_trc;
871 ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.videoFullRangeFlag = avctx->color_range == AVCOL_RANGE_JPEG;
873 ctx->encode_config.encodeCodecConfig.h264Config.disableSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
874 ctx->encode_config.encodeCodecConfig.h264Config.repeatSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1;
877 switch (avctx->profile) {
878 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
879 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_444_GUID;
881 case FF_PROFILE_H264_BASELINE:
882 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID;
884 case FF_PROFILE_H264_MAIN:
885 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID;
887 case FF_PROFILE_H264_HIGH:
888 case FF_PROFILE_UNKNOWN:
889 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID;
892 av_log(avctx, AV_LOG_WARNING, "Unsupported profile requested, falling back to high\n");
893 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID;
897 if (!strcmp(ctx->profile, "high")) {
898 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID;
899 avctx->profile = FF_PROFILE_H264_HIGH;
900 } else if (!strcmp(ctx->profile, "main")) {
901 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID;
902 avctx->profile = FF_PROFILE_H264_MAIN;
903 } else if (!strcmp(ctx->profile, "baseline")) {
904 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID;
905 avctx->profile = FF_PROFILE_H264_BASELINE;
906 } else if (!strcmp(ctx->profile, "high444p")) {
907 ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_444_GUID;
908 avctx->profile = FF_PROFILE_H264_HIGH_444_PREDICTIVE;
910 av_log(avctx, AV_LOG_FATAL, "Profile \"%s\" is unknown! Supported profiles: high, main, baseline\n", ctx->profile);
911 res = AVERROR(EINVAL);
916 ctx->encode_config.encodeCodecConfig.h264Config.chromaFormatIDC = avctx->profile == FF_PROFILE_H264_HIGH_444_PREDICTIVE ? 3 : 1;
919 res = input_string_to_uint32(avctx, nvenc_h264_level_pairs, ctx->level, &ctx->encode_config.encodeCodecConfig.h264Config.level);
922 av_log(avctx, AV_LOG_FATAL, "Level \"%s\" is unknown! Supported levels: auto, 1, 1b, 1.1, 1.2, 1.3, 2, 2.1, 2.2, 3, 3.1, 3.2, 4, 4.1, 4.2, 5, 5.1\n", ctx->level);
926 ctx->encode_config.encodeCodecConfig.h264Config.level = NV_ENC_LEVEL_AUTOSELECT;
930 case AV_CODEC_ID_H265:
931 ctx->encode_config.encodeCodecConfig.hevcConfig.disableSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
932 ctx->encode_config.encodeCodecConfig.hevcConfig.repeatSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1;
934 /* No other profile is supported in the current SDK version 5 */
935 ctx->encode_config.profileGUID = NV_ENC_HEVC_PROFILE_MAIN_GUID;
936 avctx->profile = FF_PROFILE_HEVC_MAIN;
939 res = input_string_to_uint32(avctx, nvenc_hevc_level_pairs, ctx->level, &ctx->encode_config.encodeCodecConfig.hevcConfig.level);
942 av_log(avctx, AV_LOG_FATAL, "Level \"%s\" is unknown! Supported levels: auto, 1, 2, 2.1, 3, 3.1, 4, 4.1, 5, 5.1, 5.2, 6, 6.1, 6.2\n", ctx->level);
946 ctx->encode_config.encodeCodecConfig.hevcConfig.level = NV_ENC_LEVEL_AUTOSELECT;
950 if (!strcmp(ctx->tier, "main")) {
951 ctx->encode_config.encodeCodecConfig.hevcConfig.tier = NV_ENC_TIER_HEVC_MAIN;
952 } else if (!strcmp(ctx->tier, "high")) {
953 ctx->encode_config.encodeCodecConfig.hevcConfig.tier = NV_ENC_TIER_HEVC_HIGH;
955 av_log(avctx, AV_LOG_FATAL, "Tier \"%s\" is unknown! Supported tiers: main, high\n", ctx->tier);
956 res = AVERROR(EINVAL);
962 /* Earlier switch/case will return if unknown codec is passed. */
965 nv_status = p_nvenc->nvEncInitializeEncoder(ctx->nvencoder, &ctx->init_encode_params);
966 if (nv_status != NV_ENC_SUCCESS) {
967 av_log(avctx, AV_LOG_FATAL, "InitializeEncoder failed: 0x%x\n", (int)nv_status);
968 res = AVERROR_EXTERNAL;
972 ctx->input_surfaces = av_malloc(ctx->max_surface_count * sizeof(*ctx->input_surfaces));
974 if (!ctx->input_surfaces) {
975 res = AVERROR(ENOMEM);
979 ctx->output_surfaces = av_malloc(ctx->max_surface_count * sizeof(*ctx->output_surfaces));
981 if (!ctx->output_surfaces) {
982 res = AVERROR(ENOMEM);
986 for (surfaceCount = 0; surfaceCount < ctx->max_surface_count; ++surfaceCount) {
987 NV_ENC_CREATE_INPUT_BUFFER allocSurf = { 0 };
988 NV_ENC_CREATE_BITSTREAM_BUFFER allocOut = { 0 };
989 allocSurf.version = NV_ENC_CREATE_INPUT_BUFFER_VER;
990 allocOut.version = NV_ENC_CREATE_BITSTREAM_BUFFER_VER;
992 allocSurf.width = (avctx->width + 31) & ~31;
993 allocSurf.height = (avctx->height + 31) & ~31;
995 allocSurf.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
997 switch (avctx->pix_fmt) {
998 case AV_PIX_FMT_YUV420P:
999 allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YV12_PL;
1002 case AV_PIX_FMT_NV12:
1003 allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_NV12_PL;
1006 case AV_PIX_FMT_YUV444P:
1007 allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YUV444_PL;
1011 av_log(avctx, AV_LOG_FATAL, "Invalid input pixel format\n");
1012 res = AVERROR(EINVAL);
1016 nv_status = p_nvenc->nvEncCreateInputBuffer(ctx->nvencoder, &allocSurf);
1017 if (nv_status != NV_ENC_SUCCESS) {
1018 av_log(avctx, AV_LOG_FATAL, "CreateInputBuffer failed\n");
1019 res = AVERROR_EXTERNAL;
1023 ctx->input_surfaces[surfaceCount].lockCount = 0;
1024 ctx->input_surfaces[surfaceCount].input_surface = allocSurf.inputBuffer;
1025 ctx->input_surfaces[surfaceCount].format = allocSurf.bufferFmt;
1026 ctx->input_surfaces[surfaceCount].width = allocSurf.width;
1027 ctx->input_surfaces[surfaceCount].height = allocSurf.height;
1029 /* 1MB is large enough to hold most output frames. NVENC increases this automaticaly if it's not enough. */
1030 allocOut.size = 1024 * 1024;
1032 allocOut.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
1034 nv_status = p_nvenc->nvEncCreateBitstreamBuffer(ctx->nvencoder, &allocOut);
1035 if (nv_status != NV_ENC_SUCCESS) {
1036 av_log(avctx, AV_LOG_FATAL, "CreateBitstreamBuffer failed\n");
1037 ctx->output_surfaces[surfaceCount++].output_surface = NULL;
1038 res = AVERROR_EXTERNAL;
1042 ctx->output_surfaces[surfaceCount].output_surface = allocOut.bitstreamBuffer;
1043 ctx->output_surfaces[surfaceCount].size = allocOut.size;
1044 ctx->output_surfaces[surfaceCount].busy = 0;
1047 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
1048 uint32_t outSize = 0;
1049 char tmpHeader[256];
1050 NV_ENC_SEQUENCE_PARAM_PAYLOAD payload = { 0 };
1051 payload.version = NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER;
1053 payload.spsppsBuffer = tmpHeader;
1054 payload.inBufferSize = sizeof(tmpHeader);
1055 payload.outSPSPPSPayloadSize = &outSize;
1057 nv_status = p_nvenc->nvEncGetSequenceParams(ctx->nvencoder, &payload);
1058 if (nv_status != NV_ENC_SUCCESS) {
1059 av_log(avctx, AV_LOG_FATAL, "GetSequenceParams failed\n");
1063 avctx->extradata_size = outSize;
1064 avctx->extradata = av_mallocz(outSize + AV_INPUT_BUFFER_PADDING_SIZE);
1066 if (!avctx->extradata) {
1067 res = AVERROR(ENOMEM);
1071 memcpy(avctx->extradata, tmpHeader, outSize);
1074 if (ctx->encode_config.frameIntervalP > 1)
1075 avctx->has_b_frames = 2;
1077 if (ctx->encode_config.rcParams.averageBitRate > 0)
1078 avctx->bit_rate = ctx->encode_config.rcParams.averageBitRate;
1084 for (i = 0; i < surfaceCount; ++i) {
1085 p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->input_surfaces[i].input_surface);
1086 if (ctx->output_surfaces[i].output_surface)
1087 p_nvenc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->output_surfaces[i].output_surface);
1091 p_nvenc->nvEncDestroyEncoder(ctx->nvencoder);
1093 if (ctx->cu_context)
1094 dl_fn->cu_ctx_destroy(ctx->cu_context);
1096 nvenc_unload_nvenc(avctx);
1098 ctx->nvencoder = NULL;
1099 ctx->cu_context = NULL;
1104 static av_cold int nvenc_encode_close(AVCodecContext *avctx)
1106 NvencContext *ctx = avctx->priv_data;
1107 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
1108 NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs;
1111 av_freep(&ctx->timestamp_list.data);
1112 av_freep(&ctx->output_surface_ready_queue.data);
1113 av_freep(&ctx->output_surface_queue.data);
1115 for (i = 0; i < ctx->max_surface_count; ++i) {
1116 p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->input_surfaces[i].input_surface);
1117 p_nvenc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->output_surfaces[i].output_surface);
1119 ctx->max_surface_count = 0;
1121 p_nvenc->nvEncDestroyEncoder(ctx->nvencoder);
1122 ctx->nvencoder = NULL;
1124 dl_fn->cu_ctx_destroy(ctx->cu_context);
1125 ctx->cu_context = NULL;
1127 nvenc_unload_nvenc(avctx);
1132 static int process_output_surface(AVCodecContext *avctx, AVPacket *pkt, NvencOutputSurface *tmpoutsurf)
1134 NvencContext *ctx = avctx->priv_data;
1135 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
1136 NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs;
1138 uint32_t slice_mode_data;
1139 uint32_t *slice_offsets;
1140 NV_ENC_LOCK_BITSTREAM lock_params = { 0 };
1141 NVENCSTATUS nv_status;
1144 switch (avctx->codec->id) {
1145 case AV_CODEC_ID_H264:
1146 slice_mode_data = ctx->encode_config.encodeCodecConfig.h264Config.sliceModeData;
1148 case AV_CODEC_ID_H265:
1149 slice_mode_data = ctx->encode_config.encodeCodecConfig.hevcConfig.sliceModeData;
1152 av_log(avctx, AV_LOG_ERROR, "Unknown codec name\n");
1153 res = AVERROR(EINVAL);
1156 slice_offsets = av_mallocz(slice_mode_data * sizeof(*slice_offsets));
1159 return AVERROR(ENOMEM);
1161 lock_params.version = NV_ENC_LOCK_BITSTREAM_VER;
1163 lock_params.doNotWait = 0;
1164 lock_params.outputBitstream = tmpoutsurf->output_surface;
1165 lock_params.sliceOffsets = slice_offsets;
1167 nv_status = p_nvenc->nvEncLockBitstream(ctx->nvencoder, &lock_params);
1168 if (nv_status != NV_ENC_SUCCESS) {
1169 av_log(avctx, AV_LOG_ERROR, "Failed locking bitstream buffer\n");
1170 res = AVERROR_EXTERNAL;
1174 if (res = ff_alloc_packet2(avctx, pkt, lock_params.bitstreamSizeInBytes,0)) {
1175 p_nvenc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->output_surface);
1179 memcpy(pkt->data, lock_params.bitstreamBufferPtr, lock_params.bitstreamSizeInBytes);
1181 nv_status = p_nvenc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->output_surface);
1182 if (nv_status != NV_ENC_SUCCESS)
1183 av_log(avctx, AV_LOG_ERROR, "Failed unlocking bitstream buffer, expect the gates of mordor to open\n");
1185 switch (lock_params.pictureType) {
1186 case NV_ENC_PIC_TYPE_IDR:
1187 pkt->flags |= AV_PKT_FLAG_KEY;
1188 #if FF_API_CODED_FRAME
1189 FF_DISABLE_DEPRECATION_WARNINGS
1190 case NV_ENC_PIC_TYPE_I:
1191 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
1193 case NV_ENC_PIC_TYPE_P:
1194 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_P;
1196 case NV_ENC_PIC_TYPE_B:
1197 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_B;
1199 case NV_ENC_PIC_TYPE_BI:
1200 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_BI;
1203 av_log(avctx, AV_LOG_ERROR, "Unknown picture type encountered, expect the output to be broken.\n");
1204 av_log(avctx, AV_LOG_ERROR, "Please report this error and include as much information on how to reproduce it as possible.\n");
1205 res = AVERROR_EXTERNAL;
1207 FF_ENABLE_DEPRECATION_WARNINGS
1211 pkt->pts = lock_params.outputTimeStamp;
1212 pkt->dts = timestamp_queue_dequeue(&ctx->timestamp_list);
1214 /* when there're b frame(s), set dts offset */
1215 if (ctx->encode_config.frameIntervalP >= 2)
1218 if (pkt->dts > pkt->pts)
1219 pkt->dts = pkt->pts;
1221 if (ctx->last_dts != AV_NOPTS_VALUE && pkt->dts <= ctx->last_dts)
1222 pkt->dts = ctx->last_dts + 1;
1224 ctx->last_dts = pkt->dts;
1226 av_free(slice_offsets);
1232 av_free(slice_offsets);
1233 timestamp_queue_dequeue(&ctx->timestamp_list);
1238 static int nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1239 const AVFrame *frame, int *got_packet)
1241 NVENCSTATUS nv_status;
1242 NvencOutputSurface *tmpoutsurf;
1245 NvencContext *ctx = avctx->priv_data;
1246 NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
1247 NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs;
1249 NV_ENC_PIC_PARAMS pic_params = { 0 };
1250 pic_params.version = NV_ENC_PIC_PARAMS_VER;
1253 NV_ENC_LOCK_INPUT_BUFFER lockBufferParams = { 0 };
1254 NvencInputSurface *inSurf = NULL;
1256 for (i = 0; i < ctx->max_surface_count; ++i) {
1257 if (!ctx->input_surfaces[i].lockCount) {
1258 inSurf = &ctx->input_surfaces[i];
1265 inSurf->lockCount = 1;
1267 lockBufferParams.version = NV_ENC_LOCK_INPUT_BUFFER_VER;
1268 lockBufferParams.inputBuffer = inSurf->input_surface;
1270 nv_status = p_nvenc->nvEncLockInputBuffer(ctx->nvencoder, &lockBufferParams);
1271 if (nv_status != NV_ENC_SUCCESS) {
1272 av_log(avctx, AV_LOG_ERROR, "Failed locking nvenc input buffer\n");
1276 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
1277 uint8_t *buf = lockBufferParams.bufferDataPtr;
1279 av_image_copy_plane(buf, lockBufferParams.pitch,
1280 frame->data[0], frame->linesize[0],
1281 avctx->width, avctx->height);
1283 buf += inSurf->height * lockBufferParams.pitch;
1285 av_image_copy_plane(buf, lockBufferParams.pitch >> 1,
1286 frame->data[2], frame->linesize[2],
1287 avctx->width >> 1, avctx->height >> 1);
1289 buf += (inSurf->height * lockBufferParams.pitch) >> 2;
1291 av_image_copy_plane(buf, lockBufferParams.pitch >> 1,
1292 frame->data[1], frame->linesize[1],
1293 avctx->width >> 1, avctx->height >> 1);
1294 } else if (avctx->pix_fmt == AV_PIX_FMT_NV12) {
1295 uint8_t *buf = lockBufferParams.bufferDataPtr;
1297 av_image_copy_plane(buf, lockBufferParams.pitch,
1298 frame->data[0], frame->linesize[0],
1299 avctx->width, avctx->height);
1301 buf += inSurf->height * lockBufferParams.pitch;
1303 av_image_copy_plane(buf, lockBufferParams.pitch,
1304 frame->data[1], frame->linesize[1],
1305 avctx->width, avctx->height >> 1);
1306 } else if (avctx->pix_fmt == AV_PIX_FMT_YUV444P) {
1307 uint8_t *buf = lockBufferParams.bufferDataPtr;
1309 av_image_copy_plane(buf, lockBufferParams.pitch,
1310 frame->data[0], frame->linesize[0],
1311 avctx->width, avctx->height);
1313 buf += inSurf->height * lockBufferParams.pitch;
1315 av_image_copy_plane(buf, lockBufferParams.pitch,
1316 frame->data[1], frame->linesize[1],
1317 avctx->width, avctx->height);
1319 buf += inSurf->height * lockBufferParams.pitch;
1321 av_image_copy_plane(buf, lockBufferParams.pitch,
1322 frame->data[2], frame->linesize[2],
1323 avctx->width, avctx->height);
1325 av_log(avctx, AV_LOG_FATAL, "Invalid pixel format!\n");
1326 return AVERROR(EINVAL);
1329 nv_status = p_nvenc->nvEncUnlockInputBuffer(ctx->nvencoder, inSurf->input_surface);
1330 if (nv_status != NV_ENC_SUCCESS) {
1331 av_log(avctx, AV_LOG_FATAL, "Failed unlocking input buffer!\n");
1332 return AVERROR_EXTERNAL;
1335 for (i = 0; i < ctx->max_surface_count; ++i)
1336 if (!ctx->output_surfaces[i].busy)
1339 if (i == ctx->max_surface_count) {
1340 inSurf->lockCount = 0;
1341 av_log(avctx, AV_LOG_FATAL, "No free output surface found!\n");
1342 return AVERROR_EXTERNAL;
1345 ctx->output_surfaces[i].input_surface = inSurf;
1347 pic_params.inputBuffer = inSurf->input_surface;
1348 pic_params.bufferFmt = inSurf->format;
1349 pic_params.inputWidth = avctx->width;
1350 pic_params.inputHeight = avctx->height;
1351 pic_params.outputBitstream = ctx->output_surfaces[i].output_surface;
1352 pic_params.completionEvent = 0;
1354 if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {
1355 if (frame->top_field_first) {
1356 pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM;
1358 pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP;
1361 pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FRAME;
1364 pic_params.encodePicFlags = 0;
1365 pic_params.inputTimeStamp = frame->pts;
1366 pic_params.inputDuration = 0;
1367 switch (avctx->codec->id) {
1368 case AV_CODEC_ID_H264:
1369 pic_params.codecPicParams.h264PicParams.sliceMode = ctx->encode_config.encodeCodecConfig.h264Config.sliceMode;
1370 pic_params.codecPicParams.h264PicParams.sliceModeData = ctx->encode_config.encodeCodecConfig.h264Config.sliceModeData;
1372 case AV_CODEC_ID_H265:
1373 pic_params.codecPicParams.hevcPicParams.sliceMode = ctx->encode_config.encodeCodecConfig.hevcConfig.sliceMode;
1374 pic_params.codecPicParams.hevcPicParams.sliceModeData = ctx->encode_config.encodeCodecConfig.hevcConfig.sliceModeData;
1377 av_log(avctx, AV_LOG_ERROR, "Unknown codec name\n");
1378 return AVERROR(EINVAL);
1381 res = timestamp_queue_enqueue(&ctx->timestamp_list, frame->pts);
1386 pic_params.encodePicFlags = NV_ENC_PIC_FLAG_EOS;
1389 nv_status = p_nvenc->nvEncEncodePicture(ctx->nvencoder, &pic_params);
1391 if (frame && nv_status == NV_ENC_ERR_NEED_MORE_INPUT) {
1392 res = out_surf_queue_enqueue(&ctx->output_surface_queue, &ctx->output_surfaces[i]);
1397 ctx->output_surfaces[i].busy = 1;
1400 if (nv_status != NV_ENC_SUCCESS && nv_status != NV_ENC_ERR_NEED_MORE_INPUT) {
1401 av_log(avctx, AV_LOG_ERROR, "EncodePicture failed!\n");
1402 return AVERROR_EXTERNAL;
1405 if (nv_status != NV_ENC_ERR_NEED_MORE_INPUT) {
1406 while (ctx->output_surface_queue.count) {
1407 tmpoutsurf = out_surf_queue_dequeue(&ctx->output_surface_queue);
1408 res = out_surf_queue_enqueue(&ctx->output_surface_ready_queue, tmpoutsurf);
1415 res = out_surf_queue_enqueue(&ctx->output_surface_ready_queue, &ctx->output_surfaces[i]);
1420 ctx->output_surfaces[i].busy = 1;
1424 if (ctx->output_surface_ready_queue.count && (!frame || ctx->output_surface_ready_queue.count + ctx->output_surface_queue.count >= ctx->buffer_delay)) {
1425 tmpoutsurf = out_surf_queue_dequeue(&ctx->output_surface_ready_queue);
1427 res = process_output_surface(avctx, pkt, tmpoutsurf);
1432 tmpoutsurf->busy = 0;
1433 av_assert0(tmpoutsurf->input_surface->lockCount);
1434 tmpoutsurf->input_surface->lockCount--;
1444 static const enum AVPixelFormat pix_fmts_nvenc[] = {
1451 #define OFFSET(x) offsetof(NvencContext, x)
1452 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1453 static const AVOption options[] = {
1454 { "preset", "Set the encoding preset (one of slow = hq 2pass, medium = hq, fast = hp, hq, hp, bd, ll, llhq, llhp, default)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "hq" }, 0, 0, VE },
1455 { "profile", "Set the encoding profile (high, main or baseline)", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
1456 { "level", "Set the encoding level restriction (auto, 1.0, 1.0b, 1.1, 1.2, ..., 4.2, 5.0, 5.1)", OFFSET(level), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
1457 { "tier", "Set the encoding tier (main or high)", OFFSET(tier), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
1458 { "cbr", "Use cbr encoding mode", OFFSET(cbr), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
1459 { "2pass", "Use 2pass encoding mode", OFFSET(twopass), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1460 { "gpu", "Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on.", OFFSET(gpu), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
1461 { "delay", "Delays frame output by the given amount of frames.", OFFSET(buffer_delay), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },
1465 static const AVCodecDefault nvenc_defaults[] = {
1475 #if CONFIG_NVENC_ENCODER
1476 static const AVClass nvenc_class = {
1477 .class_name = "nvenc",
1478 .item_name = av_default_item_name,
1480 .version = LIBAVUTIL_VERSION_INT,
1483 AVCodec ff_nvenc_encoder = {
1485 .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC h264 encoder"),
1486 .type = AVMEDIA_TYPE_VIDEO,
1487 .id = AV_CODEC_ID_H264,
1488 .priv_data_size = sizeof(NvencContext),
1489 .init = nvenc_encode_init,
1490 .encode2 = nvenc_encode_frame,
1491 .close = nvenc_encode_close,
1492 .capabilities = AV_CODEC_CAP_DELAY,
1493 .priv_class = &nvenc_class,
1494 .defaults = nvenc_defaults,
1495 .pix_fmts = pix_fmts_nvenc,
1499 /* Add an alias for nvenc_h264 */
1500 #if CONFIG_NVENC_H264_ENCODER
1501 static const AVClass nvenc_h264_class = {
1502 .class_name = "nvenc_h264",
1503 .item_name = av_default_item_name,
1505 .version = LIBAVUTIL_VERSION_INT,
1508 AVCodec ff_nvenc_h264_encoder = {
1509 .name = "nvenc_h264",
1510 .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC h264 encoder"),
1511 .type = AVMEDIA_TYPE_VIDEO,
1512 .id = AV_CODEC_ID_H264,
1513 .priv_data_size = sizeof(NvencContext),
1514 .init = nvenc_encode_init,
1515 .encode2 = nvenc_encode_frame,
1516 .close = nvenc_encode_close,
1517 .capabilities = AV_CODEC_CAP_DELAY,
1518 .priv_class = &nvenc_h264_class,
1519 .defaults = nvenc_defaults,
1520 .pix_fmts = pix_fmts_nvenc,
1524 #if CONFIG_NVENC_HEVC_ENCODER
1525 static const AVClass nvenc_hevc_class = {
1526 .class_name = "nvenc_hevc",
1527 .item_name = av_default_item_name,
1529 .version = LIBAVUTIL_VERSION_INT,
1532 AVCodec ff_nvenc_hevc_encoder = {
1533 .name = "nvenc_hevc",
1534 .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC hevc encoder"),
1535 .type = AVMEDIA_TYPE_VIDEO,
1536 .id = AV_CODEC_ID_H265,
1537 .priv_data_size = sizeof(NvencContext),
1538 .init = nvenc_encode_init,
1539 .encode2 = nvenc_encode_frame,
1540 .close = nvenc_encode_close,
1541 .capabilities = AV_CODEC_CAP_DELAY,
1542 .priv_class = &nvenc_hevc_class,
1543 .defaults = nvenc_defaults,
1544 .pix_fmts = pix_fmts_nvenc,