From b08caa87c35a768ec0abb16b1e99c3a85f1df28e Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Sat, 30 May 2015 16:40:13 +0200 Subject: nvenc: H264 and HEVC encoders Partially based on the work of Timo Rothenpieler Signed-off-by: Luca Barbato --- Changelog | 1 + configure | 16 + libavcodec/Makefile | 3 + libavcodec/allcodecs.c | 2 + libavcodec/nvenc.c | 1136 +++++++++++++++++++++++++++++++++++++++++++++++ libavcodec/nvenc.h | 135 ++++++ libavcodec/nvenc_h264.c | 110 +++++ libavcodec/nvenc_hevc.c | 108 +++++ libavcodec/version.h | 2 +- 9 files changed, 1512 insertions(+), 1 deletion(-) create mode 100644 libavcodec/nvenc.c create mode 100644 libavcodec/nvenc.h create mode 100644 libavcodec/nvenc_h264.c create mode 100644 libavcodec/nvenc_hevc.c diff --git a/Changelog b/Changelog index 41fe7c8319..2c268edea5 100644 --- a/Changelog +++ b/Changelog @@ -31,6 +31,7 @@ version : - Canopus HQ/HQA decoder - Automatically rotate videos based on metadata in avconv - improved Quickdraw compatibility +- NVIDIA NVENC-accelerated H.264 and HEVC encoding support version 11: diff --git a/configure b/configure index d59f5e45ac..c1e516c7cd 100755 --- a/configure +++ b/configure @@ -220,6 +220,7 @@ External library support: --enable-libxvid enable Xvid encoding via xvidcore, native MPEG-4/Xvid encoder exists [no] --enable-mmal enable decoding via MMAL [no] + --enable-nvenc enable encoding via NVENC [no] --enable-openssl enable openssl [no] --enable-x11grab enable X11 grabbing (legacy) [no] --enable-zlib enable zlib [autodetect] @@ -1191,6 +1192,7 @@ EXTERNAL_LIBRARY_LIST=" libxcb_xfixes libxvid mmal + nvenc openssl x11grab zlib @@ -1483,6 +1485,7 @@ SYSTEM_FUNCS=" inet_aton isatty jack_port_get_latency_range + LoadLibrary localtime_r mach_absolute_time MapViewOfFile @@ -1780,6 +1783,8 @@ mpegaudio_select="mpegaudiodsp" mpegaudiodsp_select="dct" mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp" mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp" +nvenc_deps_any="dlopen LoadLibrary" +nvenc_extralibs='$ldl' qsvdec_select="qsv" qsvenc_select="qsv" @@ -1849,11 +1854,13 @@ h263i_decoder_select="h263_decoder" h263p_encoder_select="h263_encoder" h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp" h264_decoder_suggest="error_resilience" +h264_nvenc_encoder_deps="nvenc" h264_qsv_decoder_deps="libmfx" h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel" h264_qsv_encoder_deps="libmfx" h264_qsv_encoder_select="qsvenc" hevc_decoder_select="bswapdsp cabac golomb videodsp" +hevc_nvenc_encoder_deps="nvenc" huffyuv_decoder_select="bswapdsp huffyuvdsp" huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp" iac_decoder_select="imc_decoder" @@ -3822,6 +3829,7 @@ die_license_disabled gpl x11grab die_license_disabled nonfree libfaac die_license_disabled nonfree libfdk_aac +die_license_disabled nonfree nvenc die_license_disabled nonfree openssl die_license_disabled version3 libopencore_amrnb @@ -4188,6 +4196,7 @@ check_func_headers windows.h CoTaskMemFree -lole32 check_func_headers windows.h GetProcessAffinityMask check_func_headers windows.h GetProcessTimes check_func_headers windows.h GetSystemTimeAsFileTime +check_func_headers windows.h LoadLibrary check_func_headers windows.h MapViewOfFile check_func_headers windows.h SetConsoleTextAttribute check_func_headers windows.h Sleep @@ -4340,6 +4349,13 @@ if enabled libdc1394; then die "ERROR: No version of libdc1394 found " fi +if enabled nvenc; then + check_header cuda.h || die "ERROR: cuda.h not found."; + check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; + check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" || + die "ERROR: NVENC API version 4 or older is not supported"; +fi + if check_pkg_config sdl SDL_events.h SDL_PollEvent; then check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags && check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags && diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 96cc258099..629d25d532 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -82,6 +82,7 @@ OBJS-$(CONFIG_MPEGVIDEOENC) += mpegvideo_enc.o mpeg12data.o \ motion_est.o ratecontrol.o \ mpegvideoencdsp.o OBJS-$(CONFIG_PIXBLOCKDSP) += pixblockdsp.o +OBJS-${CONFIG_NVENC} += nvenc.o OBJS-$(CONFIG_QPELDSP) += qpeldsp.o OBJS-$(CONFIG_QSV) += qsv.o OBJS-$(CONFIG_QSVDEC) += qsvdec.o @@ -228,11 +229,13 @@ OBJS-$(CONFIG_H264_DECODER) += h264.o h264_cabac.o h264_cavlc.o \ h264_mb.o h264_picture.o h264_ps.o \ h264_refs.o h264_sei.o h264_slice.o OBJS-$(CONFIG_H264_MMAL_DECODER) += mmaldec.o +OBJS-$(CONFIG_H264_NVENC_ENCODER) += nvenc_h264.o OBJS-$(CONFIG_H264_QSV_DECODER) += qsvdec_h264.o OBJS-$(CONFIG_H264_QSV_ENCODER) += qsvenc_h264.o OBJS-$(CONFIG_HEVC_DECODER) += hevc.o hevc_mvs.o hevc_ps.o hevc_sei.o \ hevc_cabac.o hevc_refs.o hevcpred.o \ hevcdsp.o hevc_filter.o +OBJS-$(CONFIG_HEVC_NVENC_ENCODER) += nvenc_hevc.o OBJS-$(CONFIG_HNM4_VIDEO_DECODER) += hnm4video.o OBJS-$(CONFIG_HQ_HQA_DECODER) += hq_hqa.o hq_hqadata.o hq_hqadsp.o \ canopus.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index a8b5b5388a..e2013c3050 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -478,7 +478,9 @@ void avcodec_register_all(void) /* external libraries, that shouldn't be used by default if one of the * above is available */ REGISTER_ENCODER(LIBOPENH264, libopenh264); + REGISTER_ENCODER(H264_NVENC, h264_nvenc); REGISTER_ENCODER(H264_QSV, h264_qsv); + REGISTER_ENCODER(HEVC_NVENC, hevc_nvenc); /* parsers */ REGISTER_PARSER(AAC, aac); diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c new file mode 100644 index 0000000000..e725e3d8e6 --- /dev/null +++ b/libavcodec/nvenc.c @@ -0,0 +1,1136 @@ +/* + * NVIDIA NVENC Support + * Copyright (C) 2015 Luca Barbato + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include +#include +#include + +#define CUDA_LIBNAME "libcuda.so" + +#if HAVE_DLFCN_H +#include + +#define NVENC_LIBNAME "libnvidia-encode.so" + +#elif HAVE_WINDOWS_H +#include + +#if ARCH_X86_64 +#define NVENC_LIBNAME "nvEncodeAPI64.dll" +#else +#define NVENC_LIBNAME "nvEncodeAPI.dll" +#endif + +#define dlopen(filename, flags) LoadLibrary((filename)) +#define dlsym(handle, symbol) GetProcAddress(handle, symbol) +#define dlclose(handle) FreeLibrary(handle) +#endif + +#include "libavutil/common.h" +#include "libavutil/imgutils.h" +#include "libavutil/mem.h" +#include "avcodec.h" +#include "internal.h" +#include "nvenc.h" + +#define NVENC_CAP 0x30 +#define BITSTREAM_BUFFER_SIZE 1024 * 1024 + +#define LOAD_LIBRARY(l, path) \ + do { \ + if (!((l) = dlopen(path, RTLD_LAZY))) { \ + av_log(avctx, AV_LOG_ERROR, \ + "Cannot load %s\n", \ + path); \ + return AVERROR_UNKNOWN; \ + } \ + } while (0) + +#define LOAD_SYMBOL(fun, lib, symbol) \ + do { \ + if (!((fun) = dlsym(lib, symbol))) { \ + av_log(avctx, AV_LOG_ERROR, \ + "Cannot load %s\n", \ + symbol); \ + return AVERROR_UNKNOWN; \ + } \ + } while (0) + +static av_cold int nvenc_load_libraries(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NVENCLibraryContext *nvel = &ctx->nvel; + PNVENCODEAPICREATEINSTANCE nvenc_create_instance; + + LOAD_LIBRARY(nvel->cuda, CUDA_LIBNAME); + + LOAD_SYMBOL(nvel->cu_init, nvel->cuda, "cuInit"); + LOAD_SYMBOL(nvel->cu_device_get_count, nvel->cuda, "cuDeviceGetCount"); + LOAD_SYMBOL(nvel->cu_device_get, nvel->cuda, "cuDeviceGet"); + LOAD_SYMBOL(nvel->cu_device_get_name, nvel->cuda, "cuDeviceGetName"); + LOAD_SYMBOL(nvel->cu_device_compute_capability, nvel->cuda, + "cuDeviceComputeCapability"); + LOAD_SYMBOL(nvel->cu_ctx_create, nvel->cuda, "cuCtxCreate_v2"); + LOAD_SYMBOL(nvel->cu_ctx_pop_current, nvel->cuda, "cuCtxPopCurrent_v2"); + LOAD_SYMBOL(nvel->cu_ctx_destroy, nvel->cuda, "cuCtxDestroy_v2"); + + LOAD_LIBRARY(nvel->nvenc, NVENC_LIBNAME); + + LOAD_SYMBOL(nvenc_create_instance, nvel->nvenc, + "NvEncodeAPICreateInstance"); + + nvel->nvenc_funcs.version = NV_ENCODE_API_FUNCTION_LIST_VER; + + if ((nvenc_create_instance(&nvel->nvenc_funcs)) != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Cannot create the NVENC instance"); + return AVERROR_UNKNOWN; + } + + return 0; +} + +static int nvenc_open_session(AVCodecContext *avctx) +{ + NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS params = { 0 }; + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + int ret; + + params.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER; + params.apiVersion = NVENCAPI_VERSION; + params.device = ctx->cu_context; + params.deviceType = NV_ENC_DEVICE_TYPE_CUDA; + + ret = nv->nvEncOpenEncodeSessionEx(¶ms, &ctx->nvenc_ctx); + if (ret != NV_ENC_SUCCESS) { + ctx->nvenc_ctx = NULL; + av_log(avctx, AV_LOG_ERROR, + "Cannot open the NVENC Session\n"); + return AVERROR_UNKNOWN; + } + + return 0; +} + +static int nvenc_check_codec_support(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + int i, ret, count = 0; + GUID *guids = NULL; + + ret = nv->nvEncGetEncodeGUIDCount(ctx->nvenc_ctx, &count); + + if (ret != NV_ENC_SUCCESS || !count) + return AVERROR(ENOSYS); + + guids = av_malloc(count * sizeof(GUID)); + if (!guids) + return AVERROR(ENOMEM); + + ret = nv->nvEncGetEncodeGUIDs(ctx->nvenc_ctx, guids, count, &count); + if (ret != NV_ENC_SUCCESS) { + ret = AVERROR(ENOSYS); + goto fail; + } + + ret = AVERROR(ENOSYS); + for (i = 0; i < count; i++) { + if (!memcmp(&guids[i], &ctx->params.encodeGUID, sizeof(*guids))) { + ret = 0; + break; + } + } + +fail: + av_free(guids); + + return ret; +} + +static int nvenc_check_cap(AVCodecContext *avctx, NV_ENC_CAPS cap) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + NV_ENC_CAPS_PARAM params = { 0 }; + int ret, val = 0; + + params.version = NV_ENC_CAPS_PARAM_VER; + params.capsToQuery = cap; + + ret = nv->nvEncGetEncodeCaps(ctx->nvenc_ctx, ctx->params.encodeGUID, ¶ms, &val); + + if (ret == NV_ENC_SUCCESS) + return val; + return 0; +} + +static int nvenc_check_capabilities(AVCodecContext *avctx) +{ + int ret; + + ret = nvenc_check_codec_support(avctx); + if (ret < 0) { + av_log(avctx, AV_LOG_VERBOSE, "Codec not supported\n"); + return ret; + } + + ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_YUV444_ENCODE); + if (avctx->pix_fmt == AV_PIX_FMT_YUV444P && ret <= 0) { + av_log(avctx, AV_LOG_VERBOSE, "YUV444P not supported\n"); + return AVERROR(ENOSYS); + } + + ret = nvenc_check_cap(avctx, NV_ENC_CAPS_WIDTH_MAX); + if (ret < avctx->width) { + av_log(avctx, AV_LOG_VERBOSE, "Width %d exceeds %d\n", + avctx->width, ret); + return AVERROR(ENOSYS); + } + + ret = nvenc_check_cap(avctx, NV_ENC_CAPS_HEIGHT_MAX); + if (ret < avctx->height) { + av_log(avctx, AV_LOG_VERBOSE, "Height %d exceeds %d\n", + avctx->height, ret); + return AVERROR(ENOSYS); + } + + ret = nvenc_check_cap(avctx, NV_ENC_CAPS_NUM_MAX_BFRAMES); + if (ret < avctx->max_b_frames) { + av_log(avctx, AV_LOG_VERBOSE, "Max b-frames %d exceed %d\n", + avctx->max_b_frames, ret); + + return AVERROR(ENOSYS); + } + + return 0; +} + +static int nvenc_check_device(AVCodecContext *avctx, int idx) +{ + NVENCContext *ctx = avctx->priv_data; + NVENCLibraryContext *nvel = &ctx->nvel; + char name[128] = { 0 }; + int major, minor, ret; + CUdevice cu_device; + CUcontext dummy; + int loglevel = AV_LOG_VERBOSE; + + if (ctx->device == LIST_DEVICES) + loglevel = AV_LOG_INFO; + + ret = nvel->cu_device_get(&cu_device, idx); + if (ret != CUDA_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, + "Cannot access the CUDA device %d\n", + idx); + return -1; + } + + ret = nvel->cu_device_get_name(name, sizeof(name), cu_device); + if (ret != CUDA_SUCCESS) + return -1; + + ret = nvel->cu_device_compute_capability(&major, &minor, cu_device); + if (ret != CUDA_SUCCESS) + return -1; + + av_log(avctx, loglevel, "Device %d [%s] ", cu_device, name); + + if (((major << 4) | minor) < NVENC_CAP) + goto fail; + + ret = nvel->cu_ctx_create(&ctx->cu_context, 0, cu_device); + if (ret != CUDA_SUCCESS) + goto fail; + + ret = nvel->cu_ctx_pop_current(&dummy); + if (ret != CUDA_SUCCESS) + goto fail2; + + if ((ret = nvenc_open_session(avctx)) < 0) + goto fail2; + + if ((ret = nvenc_check_capabilities(avctx)) < 0) + goto fail3; + + av_log(avctx, loglevel, "supports NVENC\n"); + + if (ctx->device == cu_device || ctx->device == ANY_DEVICE) + return 0; + +fail3: + nvel->nvenc_funcs.nvEncDestroyEncoder(ctx->nvenc_ctx); + ctx->nvenc_ctx = NULL; + +fail2: + nvel->cu_ctx_destroy(ctx->cu_context); + ctx->cu_context = NULL; + +fail: + if (ret != 0) + av_log(avctx, loglevel, "does not support NVENC (major %d minor %d)\n", + major, minor); + + return AVERROR(ENOSYS); +} + +static int nvenc_setup_device(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NVENCLibraryContext *nvel = &ctx->nvel; + int i, nb_devices = 0; + + if ((nvel->cu_init(0)) != CUDA_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, + "Cannot init CUDA\n"); + return AVERROR_UNKNOWN; + } + + if ((nvel->cu_device_get_count(&nb_devices)) != CUDA_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, + "Cannot enumerate the CUDA devices\n"); + return AVERROR_UNKNOWN; + } + + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + ctx->params.encodeGUID = NV_ENC_CODEC_H264_GUID; + break; + case AV_CODEC_ID_HEVC: + ctx->params.encodeGUID = NV_ENC_CODEC_HEVC_GUID; + break; + default: + return AVERROR_BUG; + } + + for (i = 0; i < nb_devices; ++i) { + if ((nvenc_check_device(avctx, i)) >= 0 && ctx->device != LIST_DEVICES) + return 0; + } + + if (ctx->device == LIST_DEVICES) + return AVERROR_EXIT; + + return AVERROR(ENOSYS); +} + +typedef struct GUIDTuple { + const GUID guid; + int flags; +} GUIDTuple; + +static int nvec_map_preset(NVENCContext *ctx) +{ + GUIDTuple presets[] = { + { NV_ENC_PRESET_DEFAULT_GUID }, + { NV_ENC_PRESET_HP_GUID }, + { NV_ENC_PRESET_HQ_GUID }, + { NV_ENC_PRESET_BD_GUID }, + { NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID, NVENC_LOWLATENCY }, + { NV_ENC_PRESET_LOW_LATENCY_HP_GUID, NVENC_LOWLATENCY }, + { NV_ENC_PRESET_LOW_LATENCY_HQ_GUID, NVENC_LOWLATENCY }, + { NV_ENC_PRESET_LOSSLESS_DEFAULT_GUID, NVENC_LOSSLESS }, + { NV_ENC_PRESET_LOSSLESS_HP_GUID, NVENC_LOSSLESS }, + { { 0 } } + }; + + GUIDTuple *t = &presets[ctx->preset]; + + ctx->params.presetGUID = t->guid; + ctx->flags = t->flags; + + return AVERROR(EINVAL); +} + +static void set_constqp(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc) +{ + rc->rateControlMode = NV_ENC_PARAMS_RC_CONSTQP; + rc->constQP.qpInterB = avctx->global_quality; + rc->constQP.qpInterP = avctx->global_quality; + rc->constQP.qpIntra = avctx->global_quality; +} + +static void set_vbr(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc) +{ + if (avctx->qmin >= 0) { + rc->enableMinQP = 1; + rc->minQP.qpInterB = avctx->qmin; + rc->minQP.qpInterP = avctx->qmin; + rc->minQP.qpIntra = avctx->qmin; + } + + if (avctx->qmax >= 0) { + rc->enableMaxQP = 1; + rc->maxQP.qpInterB = avctx->qmax; + rc->maxQP.qpInterP = avctx->qmax; + rc->maxQP.qpIntra = avctx->qmax; + } +} + +static void nvenc_override_rate_control(AVCodecContext *avctx, + NV_ENC_RC_PARAMS *rc) +{ + NVENCContext *ctx = avctx->priv_data; + + switch (ctx->rc) { + case NV_ENC_PARAMS_RC_CONSTQP: + if (avctx->global_quality < 0) { + av_log(avctx, AV_LOG_WARNING, + "The constant quality rate-control requires " + "the 'global_quality' option set.\n"); + return; + } + set_constqp(avctx, rc); + return; + case NV_ENC_PARAMS_RC_2_PASS_VBR: + case NV_ENC_PARAMS_RC_VBR: + if (avctx->qmin < 0 && avctx->qmax < 0) { + av_log(avctx, AV_LOG_WARNING, + "The variable bitrate rate-control requires " + "the 'qmin' and/or 'qmax' option set.\n"); + return; + } + case NV_ENC_PARAMS_RC_VBR_MINQP: + if (avctx->qmin < 0) { + av_log(avctx, AV_LOG_WARNING, + "The variable bitrate rate-control requires " + "the 'qmin' option set.\n"); + return; + } + set_vbr(avctx, rc); + break; + case NV_ENC_PARAMS_RC_CBR: + break; + case NV_ENC_PARAMS_RC_2_PASS_QUALITY: + case NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP: + if (!(ctx->flags & NVENC_LOWLATENCY)) { + av_log(avctx, AV_LOG_WARNING, + "The multipass rate-control requires " + "a low-latency preset.\n"); + return; + } + } + + rc->rateControlMode = ctx->rc; +} + +static void nvenc_setup_rate_control(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENC_RC_PARAMS *rc = &ctx->config.rcParams; + + if (avctx->bit_rate > 0) + rc->averageBitRate = avctx->bit_rate; + + if (avctx->rc_max_rate > 0) + rc->maxBitRate = avctx->rc_max_rate; + + if (ctx->rc > 0) { + nvenc_override_rate_control(avctx, rc); + } else if (avctx->global_quality > 0) { + set_constqp(avctx, rc); + } else if (avctx->qmin >= 0 && avctx->qmax >= 0) { + rc->rateControlMode = NV_ENC_PARAMS_RC_VBR; + set_vbr(avctx, rc); + } + + if (avctx->rc_buffer_size > 0) + rc->vbvBufferSize = avctx->rc_buffer_size; + + if (rc->averageBitRate > 0) + avctx->bit_rate = rc->averageBitRate; +} + +static int nvenc_setup_h264_config(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENC_CONFIG *cc = &ctx->config; + NV_ENC_CONFIG_H264 *h264 = &cc->encodeCodecConfig.h264Config; + NV_ENC_CONFIG_H264_VUI_PARAMETERS *vui = &h264->h264VUIParameters; + + vui->colourDescriptionPresentFlag = 1; + vui->videoSignalTypePresentFlag = 1; + + vui->colourMatrix = avctx->colorspace; + vui->colourPrimaries = avctx->color_primaries; + vui->transferCharacteristics = avctx->color_trc; + + vui->videoFullRangeFlag = avctx->color_range == AVCOL_RANGE_JPEG; + + h264->disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0; + h264->repeatSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1; + + h264->maxNumRefFrames = avctx->refs; + h264->idrPeriod = cc->gopLength; + + if (ctx->profile) + avctx->profile = ctx->profile; + + if (avctx->pix_fmt == AV_PIX_FMT_YUV444P) + h264->chromaFormatIDC = 3; + else + h264->chromaFormatIDC = 1; + + switch (ctx->profile) { + case NV_ENC_H264_PROFILE_BASELINE: + cc->profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID; + break; + case NV_ENC_H264_PROFILE_MAIN: + cc->profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID; + break; + case NV_ENC_H264_PROFILE_HIGH: + cc->profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID; + break; + case NV_ENC_H264_PROFILE_HIGH_444: + cc->profileGUID = NV_ENC_H264_PROFILE_HIGH_444_GUID; + break; + case NV_ENC_H264_PROFILE_CONSTRAINED_HIGH: + cc->profileGUID = NV_ENC_H264_PROFILE_CONSTRAINED_HIGH_GUID; + break; + } + + h264->level = ctx->level; + + return 0; +} + +static int nvenc_setup_hevc_config(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENC_CONFIG *cc = &ctx->config; + NV_ENC_CONFIG_HEVC *hevc = &cc->encodeCodecConfig.hevcConfig; + + hevc->disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0; + hevc->repeatSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1; + + hevc->maxNumRefFramesInDPB = avctx->refs; + hevc->idrPeriod = cc->gopLength; + + /* No other profile is supported in the current SDK version 5 */ + cc->profileGUID = NV_ENC_HEVC_PROFILE_MAIN_GUID; + avctx->profile = FF_PROFILE_HEVC_MAIN; + + if (ctx->level) { + hevc->level = ctx->level; + } else { + hevc->level = NV_ENC_LEVEL_AUTOSELECT; + } + + if (ctx->tier) { + hevc->tier = ctx->tier; + } + + return 0; +} +static int nvenc_setup_codec_config(AVCodecContext *avctx) +{ + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + return nvenc_setup_h264_config(avctx); + case AV_CODEC_ID_HEVC: + return nvenc_setup_hevc_config(avctx); + } + return 0; +} + +static int nvenc_setup_encoder(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + NV_ENC_PRESET_CONFIG preset_cfg = { 0 }; + int ret; + + ctx->params.version = NV_ENC_INITIALIZE_PARAMS_VER; + + ctx->params.encodeHeight = avctx->height; + ctx->params.encodeWidth = avctx->width; + + if (avctx->sample_aspect_ratio.num && + avctx->sample_aspect_ratio.den && + (avctx->sample_aspect_ratio.num != 1 || + avctx->sample_aspect_ratio.den != 1)) { + av_reduce(&ctx->params.darWidth, + &ctx->params.darHeight, + avctx->width * avctx->sample_aspect_ratio.num, + avctx->height * avctx->sample_aspect_ratio.den, + INT_MAX / 8); + } else { + ctx->params.darHeight = avctx->height; + ctx->params.darWidth = avctx->width; + } + + ctx->params.frameRateNum = avctx->time_base.den; + ctx->params.frameRateDen = avctx->time_base.num * avctx->ticks_per_frame; + + ctx->params.enableEncodeAsync = 0; + ctx->params.enablePTD = 1; + + ctx->params.encodeConfig = &ctx->config; + + nvec_map_preset(ctx); + + preset_cfg.version = NV_ENC_PRESET_CONFIG_VER; + preset_cfg.presetCfg.version = NV_ENC_CONFIG_VER; + + ret = nv->nvEncGetEncodePresetConfig(ctx->nvenc_ctx, + ctx->params.encodeGUID, + ctx->params.presetGUID, + &preset_cfg); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, + "Cannot get the preset configuration\n"); + return AVERROR_UNKNOWN; + } + + memcpy(&ctx->config, &preset_cfg.presetCfg, sizeof(ctx->config)); + + ctx->config.version = NV_ENC_CONFIG_VER; + + if (avctx->gop_size > 0) { + if (avctx->max_b_frames > 0) { + ctx->last_dts = -2; + /* 0 is intra-only, + * 1 is I/P only, + * 2 is one B Frame, + * 3 two B frames, and so on. */ + ctx->config.frameIntervalP = avctx->max_b_frames + 1; + } else if (avctx->max_b_frames == 0) { + ctx->config.frameIntervalP = 1; + } + ctx->config.gopLength = avctx->gop_size; + } else if (avctx->gop_size == 0) { + ctx->config.frameIntervalP = 0; + ctx->config.gopLength = 1; + } + + if (ctx->config.frameIntervalP > 1) + avctx->max_b_frames = ctx->config.frameIntervalP - 1; + + nvenc_setup_rate_control(avctx); + + if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) { + ctx->config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FIELD; + } else { + ctx->config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME; + } + + if ((ret = nvenc_setup_codec_config(avctx)) < 0) + return ret; + + ret = nv->nvEncInitializeEncoder(ctx->nvenc_ctx, &ctx->params); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Cannot initialize the decoder"); + return AVERROR_UNKNOWN; + } + + return 0; +} + +static int nvenc_alloc_surface(AVCodecContext *avctx, int idx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + int ret; + NV_ENC_CREATE_INPUT_BUFFER in_buffer = { 0 }; + NV_ENC_CREATE_BITSTREAM_BUFFER out_buffer = { 0 }; + + in_buffer.version = NV_ENC_CREATE_INPUT_BUFFER_VER; + out_buffer.version = NV_ENC_CREATE_BITSTREAM_BUFFER_VER; + + in_buffer.width = avctx->width; + in_buffer.height = avctx->height; + + in_buffer.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_UNCACHED; + + switch (avctx->pix_fmt) { + case AV_PIX_FMT_YUV420P: + in_buffer.bufferFmt = NV_ENC_BUFFER_FORMAT_YV12_PL; + break; + case AV_PIX_FMT_NV12: + in_buffer.bufferFmt = NV_ENC_BUFFER_FORMAT_NV12_PL; + break; + case AV_PIX_FMT_YUV444P: + in_buffer.bufferFmt = NV_ENC_BUFFER_FORMAT_YUV444_PL; + break; + default: + return AVERROR_BUG; + } + + ret = nv->nvEncCreateInputBuffer(ctx->nvenc_ctx, &in_buffer); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "CreateInputBuffer failed\n"); + return AVERROR_UNKNOWN; + } + + ctx->in[idx].in = in_buffer.inputBuffer; + ctx->in[idx].format = in_buffer.bufferFmt; + + /* 1MB is large enough to hold most output frames. + * NVENC increases this automaticaly if it's not enough. */ + out_buffer.size = BITSTREAM_BUFFER_SIZE; + + out_buffer.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_UNCACHED; + + ret = nv->nvEncCreateBitstreamBuffer(ctx->nvenc_ctx, &out_buffer); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "CreateBitstreamBuffer failed\n"); + return AVERROR_UNKNOWN; + } + + ctx->out[idx].out = out_buffer.bitstreamBuffer; + ctx->out[idx].busy = 0; + + return 0; +} + +static int nvenc_setup_surfaces(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + int i, ret; + + ctx->nb_surfaces = FFMAX(4 + avctx->max_b_frames, + ctx->nb_surfaces); + + ctx->in = av_mallocz(ctx->nb_surfaces * sizeof(*ctx->in)); + if (!ctx->in) + return AVERROR(ENOMEM); + + ctx->out = av_mallocz(ctx->nb_surfaces * sizeof(*ctx->out)); + if (!ctx->out) + return AVERROR(ENOMEM); + + ctx->timestamps = av_fifo_alloc(ctx->nb_surfaces * sizeof(int64_t)); + if (!ctx->timestamps) + return AVERROR(ENOMEM); + ctx->pending = av_fifo_alloc(ctx->nb_surfaces * sizeof(ctx->out)); + if (!ctx->pending) + return AVERROR(ENOMEM); + ctx->ready = av_fifo_alloc(ctx->nb_surfaces * sizeof(ctx->out)); + if (!ctx->ready) + return AVERROR(ENOMEM); + + for (i = 0; i < ctx->nb_surfaces; i++) { + if ((ret = nvenc_alloc_surface(avctx, i)) < 0) + return ret; + } + + return 0; +} + +#define EXTRADATA_SIZE 512 + +static int nvenc_setup_extradata(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + NV_ENC_SEQUENCE_PARAM_PAYLOAD payload = { 0 }; + int ret; + + avctx->extradata = av_mallocz(EXTRADATA_SIZE + FF_INPUT_BUFFER_PADDING_SIZE); + if (!avctx->extradata) + return AVERROR(ENOMEM); + + payload.version = NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER; + payload.spsppsBuffer = avctx->extradata; + payload.inBufferSize = EXTRADATA_SIZE; + payload.outSPSPPSPayloadSize = &avctx->extradata_size; + + ret = nv->nvEncGetSequenceParams(ctx->nvenc_ctx, &payload); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Cannot get the extradata\n"); + return AVERROR_UNKNOWN; + } + + return 0; +} + +av_cold int ff_nvenc_encode_close(AVCodecContext *avctx) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + int i; + + av_frame_free(&avctx->coded_frame); + + if (ctx->in) { + for (i = 0; i < ctx->nb_surfaces; ++i) { + nv->nvEncDestroyInputBuffer(ctx->nvenc_ctx, ctx->in[i].in); + nv->nvEncDestroyBitstreamBuffer(ctx->nvenc_ctx, ctx->out[i].out); + } + } + + av_freep(&ctx->in); + av_freep(&ctx->out); + + if (ctx->nvenc_ctx) + nv->nvEncDestroyEncoder(ctx->nvenc_ctx); + + if (ctx->cu_context) + ctx->nvel.cu_ctx_destroy(ctx->cu_context); + + if (ctx->nvel.nvenc) + dlclose(ctx->nvel.nvenc); + + if (ctx->nvel.cuda) + dlclose(ctx->nvel.cuda); + + return 0; +} + +av_cold int ff_nvenc_encode_init(AVCodecContext *avctx) +{ + int ret; + + if ((ret = nvenc_load_libraries(avctx)) < 0) + return ret; + + if ((ret = nvenc_setup_device(avctx)) < 0) + return ret; + + if ((ret = nvenc_setup_encoder(avctx)) < 0) + return ret; + + if ((ret = nvenc_setup_surfaces(avctx)) < 0) + return ret; + + if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) { + if ((ret = nvenc_setup_extradata(avctx)) < 0) + return ret; + } + + avctx->coded_frame = av_frame_alloc(); + if (!avctx->coded_frame) + return AVERROR(ENOMEM); + + return 0; +} + +static NVENCInputSurface *get_input_surface(NVENCContext *ctx) +{ + int i; + + for (i = 0; i < ctx->nb_surfaces; i++) { + if (!ctx->in[i].locked) { + ctx->in[i].locked = 1; + return &ctx->in[i]; + } + } + + return NULL; +} + +static NVENCOutputSurface *get_output_surface(NVENCContext *ctx) +{ + int i; + + for (i = 0; i < ctx->nb_surfaces; i++) { + if (!ctx->out[i].busy) { + return &ctx->out[i]; + } + } + + return NULL; +} + +static int nvenc_copy_frame(NV_ENC_LOCK_INPUT_BUFFER *in, const AVFrame *frame) +{ + uint8_t *buf = in->bufferDataPtr; + int off = frame->height * in->pitch; + + switch (frame->format) { + case AV_PIX_FMT_YUV420P: + av_image_copy_plane(buf, in->pitch, + frame->data[0], frame->linesize[0], + frame->width, frame->height); + buf += off; + + av_image_copy_plane(buf, in->pitch >> 1, + frame->data[2], frame->linesize[2], + frame->width >> 1, frame->height >> 1); + + buf += off >> 2; + + av_image_copy_plane(buf, in->pitch >> 1, + frame->data[1], frame->linesize[1], + frame->width >> 1, frame->height >> 1); + break; + case AV_PIX_FMT_NV12: + av_image_copy_plane(buf, in->pitch, + frame->data[0], frame->linesize[0], + frame->width, frame->height); + buf += off; + + av_image_copy_plane(buf, in->pitch >> 1, + frame->data[1], frame->linesize[1], + frame->width >> 1, frame->height >> 1); + break; + case AV_PIX_FMT_YUV444P: + av_image_copy_plane(buf, in->pitch, + frame->data[0], frame->linesize[0], + frame->width, frame->height); + buf += off; + + av_image_copy_plane(buf, in->pitch, + frame->data[1], frame->linesize[1], + frame->width, frame->height); + buf += off; + + av_image_copy_plane(buf, in->pitch, + frame->data[2], frame->linesize[2], + frame->width, frame->height); + break; + default: + return AVERROR_BUG; + } + + return 0; +} + +static int nvenc_enqueue_frame(AVCodecContext *avctx, const AVFrame *frame, + NVENCInputSurface **in_surf) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + NV_ENC_LOCK_INPUT_BUFFER params = { 0 }; + NVENCInputSurface *in = get_input_surface(ctx); + int ret; + + if (!in) + return AVERROR_BUG; + + params.version = NV_ENC_LOCK_INPUT_BUFFER_VER; + params.inputBuffer = in->in; + + + ret = nv->nvEncLockInputBuffer(ctx->nvenc_ctx, ¶ms); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Cannot lock the buffer %p.\n", + in); + return AVERROR_UNKNOWN; + } + + ret = nvenc_copy_frame(¶ms, frame); + if (ret < 0) + goto fail; + + ret = nv->nvEncUnlockInputBuffer(ctx->nvenc_ctx, in->in); + if (ret != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Cannot unlock the buffer %p.\n", + in); + return AVERROR_UNKNOWN; + } + + *in_surf = in; + + return 0; + +fail: + nv->nvEncUnlockInputBuffer(ctx->nvenc_ctx, in->in); + + return ret; +} + +static void nvenc_codec_specific_pic_params(AVCodecContext *avctx, + NV_ENC_PIC_PARAMS *params) +{ + NVENCContext *ctx = avctx->priv_data; + + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + params->codecPicParams.h264PicParams.sliceMode = + ctx->config.encodeCodecConfig.h264Config.sliceMode; + params->codecPicParams.h264PicParams.sliceModeData = + ctx->config.encodeCodecConfig.h264Config.sliceModeData; + break; + case AV_CODEC_ID_HEVC: + params->codecPicParams.hevcPicParams.sliceMode = + ctx->config.encodeCodecConfig.hevcConfig.sliceMode; + params->codecPicParams.hevcPicParams.sliceModeData = + ctx->config.encodeCodecConfig.hevcConfig.sliceModeData; + break; + } +} + +static inline int nvenc_enqueue_timestamp(AVFifoBuffer *f, int64_t pts) +{ + return av_fifo_generic_write(f, &pts, sizeof(pts), NULL); +} + +static inline int nvenc_dequeue_timestamp(AVFifoBuffer *f, int64_t *pts) +{ + return av_fifo_generic_read(f, pts, sizeof(*pts), NULL); +} + +static inline int nvenc_enqueue_surface(AVFifoBuffer *f, + NVENCOutputSurface *surf) +{ + surf->busy = 1; + return av_fifo_generic_write(f, &surf, sizeof(surf), NULL); +} + +static inline int nvenc_dequeue_surface(AVFifoBuffer *f, + NVENCOutputSurface **surf) +{ + return av_fifo_generic_read(f, surf, sizeof(*surf), NULL); +} + +static int nvenc_set_timestamp(NVENCContext *ctx, + NV_ENC_LOCK_BITSTREAM *params, + AVPacket *pkt) +{ + pkt->pts = params->outputTimeStamp; + pkt->duration = params->outputDuration; + + return nvenc_dequeue_timestamp(ctx->timestamps, &pkt->dts); +} + +static int nvenc_get_frame(AVCodecContext *avctx, AVPacket *pkt) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + NV_ENC_LOCK_BITSTREAM params = { 0 }; + NVENCOutputSurface *out = NULL; + int ret; + + ret = nvenc_dequeue_surface(ctx->pending, &out); + if (ret) + return ret; + + params.version = NV_ENC_LOCK_BITSTREAM_VER; + params.outputBitstream = out->out; + + ret = nv->nvEncLockBitstream(ctx->nvenc_ctx, ¶ms); + if (ret < 0) + return AVERROR_UNKNOWN; + + ret = ff_alloc_packet(pkt, params.bitstreamSizeInBytes); + if (ret < 0) + return ret; + + memcpy(pkt->data, params.bitstreamBufferPtr, pkt->size); + + ret = nv->nvEncUnlockBitstream(ctx->nvenc_ctx, out->out); + if (ret < 0) + return AVERROR_UNKNOWN; + + out->busy = out->in->locked = 0; + + ret = nvenc_set_timestamp(ctx, ¶ms, pkt); + if (ret < 0) + return ret; + + switch (params.pictureType) { + case NV_ENC_PIC_TYPE_IDR: + pkt->flags |= AV_PKT_FLAG_KEY; + case NV_ENC_PIC_TYPE_INTRA_REFRESH: + case NV_ENC_PIC_TYPE_I: + avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; + break; + case NV_ENC_PIC_TYPE_P: + avctx->coded_frame->pict_type = AV_PICTURE_TYPE_P; + break; + case NV_ENC_PIC_TYPE_B: + avctx->coded_frame->pict_type = AV_PICTURE_TYPE_B; + break; + case NV_ENC_PIC_TYPE_BI: + avctx->coded_frame->pict_type = AV_PICTURE_TYPE_BI; + break; + } + + return 0; +} + +int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt, + const AVFrame *frame, int *got_packet) +{ + NVENCContext *ctx = avctx->priv_data; + NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; + NV_ENC_PIC_PARAMS params = { 0 }; + NVENCInputSurface *in = NULL; + NVENCOutputSurface *out = NULL; + int ret; + + params.version = NV_ENC_PIC_PARAMS_VER; + + if (frame) { + ret = nvenc_enqueue_frame(avctx, frame, &in); + if (ret < 0) + return ret; + out = get_output_surface(ctx); + if (!out) + return AVERROR_BUG; + + out->in = in; + + params.inputBuffer = in->in; + params.bufferFmt = in->format; + params.inputWidth = frame->width; + params.inputHeight = frame->height; + params.outputBitstream = out->out; + params.inputTimeStamp = frame->pts; + + if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) { + if (frame->top_field_first) + params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM; + else + params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP; + } else { + params.pictureStruct = NV_ENC_PIC_STRUCT_FRAME; + } + + nvenc_codec_specific_pic_params(avctx, ¶ms); + + ret = nvenc_enqueue_timestamp(ctx->timestamps, frame->pts); + if (ret < 0) + return ret; + } else { + params.encodePicFlags = NV_ENC_PIC_FLAG_EOS; + } + + ret = nv->nvEncEncodePicture(ctx->nvenc_ctx, ¶ms); + + if (ret != NV_ENC_SUCCESS && + ret != NV_ENC_ERR_NEED_MORE_INPUT) { + + return AVERROR_UNKNOWN; + } + + if (out) { + ret = nvenc_enqueue_surface(ctx->pending, out); + if (ret < 0) + return ret; + } + + if (ret != NV_ENC_ERR_NEED_MORE_INPUT && + av_fifo_size(ctx->pending)) { + ret = nvenc_get_frame(avctx, pkt); + if (ret < 0) + return ret; + *got_packet = 1; + } else { + *got_packet = 0; + } + + return 0; +} diff --git a/libavcodec/nvenc.h b/libavcodec/nvenc.h new file mode 100644 index 0000000000..8819b3ca32 --- /dev/null +++ b/libavcodec/nvenc.h @@ -0,0 +1,135 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_NVENC_H +#define AVCODEC_NVENC_H + +#include +#include + +#include "libavutil/fifo.h" +#include "libavutil/opt.h" + +#include "avcodec.h" + +typedef struct NVENCInputSurface { + NV_ENC_INPUT_PTR in; + NV_ENC_BUFFER_FORMAT format; + int locked; +} NVENCInputSurface; + +typedef struct NVENCOutputSurface { + NV_ENC_OUTPUT_PTR out; + NVENCInputSurface *in; + int busy; +} NVENCOutputSurface; + +typedef CUresult(CUDAAPI *PCUINIT)(unsigned int Flags); +typedef CUresult(CUDAAPI *PCUDEVICEGETCOUNT)(int *count); +typedef CUresult(CUDAAPI *PCUDEVICEGET)(CUdevice *device, int ordinal); +typedef CUresult(CUDAAPI *PCUDEVICEGETNAME)(char *name, int len, CUdevice dev); +typedef CUresult(CUDAAPI *PCUDEVICECOMPUTECAPABILITY)(int *major, int *minor, CUdevice dev); +typedef CUresult(CUDAAPI *PCUCTXCREATE)(CUcontext *pctx, unsigned int flags, CUdevice dev); +typedef CUresult(CUDAAPI *PCUCTXPOPCURRENT)(CUcontext *pctx); +typedef CUresult(CUDAAPI *PCUCTXDESTROY)(CUcontext ctx); + +typedef NVENCSTATUS (NVENCAPI *PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList); + +typedef struct NVENCLibraryContext +{ + void *cuda; + void *nvenc; + + PCUINIT cu_init; + PCUDEVICEGETCOUNT cu_device_get_count; + PCUDEVICEGET cu_device_get; + PCUDEVICEGETNAME cu_device_get_name; + PCUDEVICECOMPUTECAPABILITY cu_device_compute_capability; + PCUCTXCREATE cu_ctx_create; + PCUCTXPOPCURRENT cu_ctx_pop_current; + PCUCTXDESTROY cu_ctx_destroy; + + NV_ENCODE_API_FUNCTION_LIST nvenc_funcs; +} NVENCLibraryContext; + +enum { + PRESET_DEFAULT, + PRESET_HP, + PRESET_HQ, + PRESET_BD , + PRESET_LOW_LATENCY_DEFAULT , + PRESET_LOW_LATENCY_HQ , + PRESET_LOW_LATENCY_HP, + PRESET_LOSSLESS_DEFAULT, + PRESET_LOSSLESS_HP, +}; + +enum { + NV_ENC_H264_PROFILE_BASELINE, + NV_ENC_H264_PROFILE_MAIN, + NV_ENC_H264_PROFILE_HIGH, + NV_ENC_H264_PROFILE_HIGH_444, + NV_ENC_H264_PROFILE_CONSTRAINED_HIGH, +}; + +enum { + NVENC_LOWLATENCY = 1, + NVENC_LOSSLESS, +}; + +enum { + LIST_DEVICES = -2, + ANY_DEVICE, +}; + +typedef struct NVENCContext { + AVClass *class; + NVENCLibraryContext nvel; + + NV_ENC_INITIALIZE_PARAMS params; + NV_ENC_CONFIG config; + + CUcontext cu_context; + + int nb_surfaces; + NVENCInputSurface *in; + NVENCOutputSurface *out; + AVFifoBuffer *timestamps; + AVFifoBuffer *pending, *ready; + + int64_t last_dts; + + void *nvenc_ctx; + + int preset; + int profile; + int level; + int tier; + int rc; + int device; + int flags; +} NVENCContext; + +int ff_nvenc_encode_init(AVCodecContext *avctx); + +int ff_nvenc_encode_close(AVCodecContext *avctx); + +int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt, + const AVFrame *frame, int *got_packet); + +#endif /* AVCODEC_NVENC_H */ diff --git a/libavcodec/nvenc_h264.c b/libavcodec/nvenc_h264.c new file mode 100644 index 0000000000..f94f670f0d --- /dev/null +++ b/libavcodec/nvenc_h264.c @@ -0,0 +1,110 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/internal.h" +#include "libavutil/opt.h" + +#include "avcodec.h" +#include "internal.h" + +#include "nvenc.h" + +#define OFFSET(x) offsetof(NVENCContext, x) +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM +static const AVOption options[] = { + { "preset", "Set the encoding preset", OFFSET(preset), AV_OPT_TYPE_INT, { .i64 = PRESET_HQ }, PRESET_DEFAULT, PRESET_LOSSLESS_HP, VE, "preset" }, + { "default", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_DEFAULT }, 0, 0, VE, "preset" }, + { "hp", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_HP }, 0, 0, VE, "preset" }, + { "hq", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_HQ }, 0, 0, VE, "preset" }, + { "bd", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_BD }, 0, 0, VE, "preset" }, + { "ll", "low latency", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_DEFAULT }, 0, 0, VE, "preset" }, + { "llhq", "low latency hq", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_HQ }, 0, 0, VE, "preset" }, + { "llhp", "low latency hp", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_HP }, 0, 0, VE, "preset" }, + { "profile", "Set the encoding profile", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = NV_ENC_H264_PROFILE_HIGH }, NV_ENC_H264_PROFILE_BASELINE, NV_ENC_H264_PROFILE_CONSTRAINED_HIGH, VE, "profile" }, + { "baseline", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_BASELINE }, 0, 0, VE, "profile" }, + { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_MAIN }, 0, 0, VE, "profile" }, + { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_HIGH }, 0, 0, VE, "profile" }, + { "high_444", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_HIGH_444 }, 0, 0, VE, "profile" }, + { "constrained_high", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_CONSTRAINED_HIGH }, 0, 0, VE, "profile" }, + { "level", "Set the encoding level restriction", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = NV_ENC_LEVEL_AUTOSELECT }, NV_ENC_LEVEL_AUTOSELECT, NV_ENC_LEVEL_H264_51, VE, "level" }, + { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_1 }, 0, 0, VE, "level" }, + { "1.b", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_1b }, 0, 0, VE, "level" }, + { "1.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_11 }, 0, 0, VE, "level" }, + { "1.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_12 }, 0, 0, VE, "level" }, + { "1.3", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_13 }, 0, 0, VE, "level" }, + { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_2 }, 0, 0, VE, "level" }, + { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_21 }, 0, 0, VE, "level" }, + { "2.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_22 }, 0, 0, VE, "level" }, + { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_3 }, 0, 0, VE, "level" }, + { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_31 }, 0, 0, VE, "level" }, + { "3.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_32 }, 0, 0, VE, "level" }, + { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_4 }, 0, 0, VE, "level" }, + { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_41 }, 0, 0, VE, "level" }, + { "4.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_42 }, 0, 0, VE, "level" }, + { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_5 }, 0, 0, VE, "level" }, + { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_51 }, 0, 0, VE, "level" }, + { "rc", "Override the preset rate-control", OFFSET(rc), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 0, VE }, + { "constqp", "Constant QP mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_CONSTQP }, 0, 0, VE, "rc" }, + { "vbr", "Variable bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_VBR }, 0, 0, VE, "rc" }, + { "cbr", "Constant bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_CBR }, 0, 0, VE, "rc" }, + { "vbr_minqp", "Variable bitrate mode with MinQP", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_VBR_MINQP }, 0, 0, VE, "rc" }, + { "ll_2pass_quality", "Multi-pass optimized for image quality (only for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_QUALITY }, 0, 0, VE, "rc" }, + { "ll_2pass_size", "Multi-pass optimized for constant frame size (only for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP }, 0, 0, VE, "rc" }, + { "vbr_2pass", "Multi-pass variable bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_VBR }, 0, 0, VE, "rc" }, + { "surfaces", "Number of concurrent surfaces", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, INT_MAX, VE }, + { "device", "Select a specific NVENC device", OFFSET(device), AV_OPT_TYPE_INT, { .i64 = -1 }, -2, INT_MAX, VE, "device" }, + { "any", "Pick the first device available", 0, AV_OPT_TYPE_CONST, { .i64 = ANY_DEVICE }, 0, 0, VE, "device" }, + { "list", "List the available devices", 0, AV_OPT_TYPE_CONST, { .i64 = LIST_DEVICES }, 0, 0, VE, "device" }, + { NULL } +}; + +static const AVClass nvenc_hevc_class = { + .class_name = "nvenc_h264", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +static const AVCodecDefault defaults[] = { + { "b", "0" }, + { "qmin", "-1" }, + { "qmax", "-1" }, + { "qdiff", "-1" }, + { "qblur", "-1" }, + { "qcomp", "-1" }, + { NULL }, +}; + +AVCodec ff_h264_nvenc_encoder = { + .name = "nvenc_h264", + .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC H264 encoder"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_H264, + .init = ff_nvenc_encode_init, + .encode2 = ff_nvenc_encode_frame, + .close = ff_nvenc_encode_close, + .priv_data_size = sizeof(NVENCContext), + .priv_class = &nvenc_hevc_class, + .defaults = defaults, + .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12, + AV_PIX_FMT_YUV420P, + AV_PIX_FMT_YUV444P, + AV_PIX_FMT_NONE }, + .capabilities = CODEC_CAP_DELAY, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, +}; diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c new file mode 100644 index 0000000000..a862428905 --- /dev/null +++ b/libavcodec/nvenc_hevc.c @@ -0,0 +1,108 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/internal.h" +#include "libavutil/opt.h" + +#include "avcodec.h" +#include "internal.h" + +#include "nvenc.h" + +#define OFFSET(x) offsetof(NVENCContext, x) +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM +static const AVOption options[] = { + { "preset", "Set the encoding preset", OFFSET(preset), AV_OPT_TYPE_INT, { .i64 = PRESET_HQ }, PRESET_DEFAULT, PRESET_LOSSLESS_HP, VE, "preset" }, + { "default", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_DEFAULT }, 0, 0, VE, "preset" }, + { "hp", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_HP }, 0, 0, VE, "preset" }, + { "hq", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_HQ }, 0, 0, VE, "preset" }, + { "bd", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_BD }, 0, 0, VE, "preset" }, + { "ll", "low latency", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_DEFAULT }, 0, 0, VE, "preset" }, + { "llhq", "low latency hq", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_HQ }, 0, 0, VE, "preset" }, + { "llhp", "low latency hp", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_HP }, 0, 0, VE, "preset" }, + { "lossless", "lossless", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOSSLESS_DEFAULT }, 0, 0, VE, "preset" }, + { "losslesshp", "lossless hp", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOSSLESS_HP }, 0, 0, VE, "preset" }, + { "profile", "Set the encoding profile", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = FF_PROFILE_HEVC_MAIN }, FF_PROFILE_HEVC_MAIN, FF_PROFILE_HEVC_MAIN, VE, "profile" }, + { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_HEVC_MAIN }, 0, 0, VE, "profile" }, + { "level", "Set the encoding level restriction", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = NV_ENC_LEVEL_AUTOSELECT }, NV_ENC_LEVEL_AUTOSELECT, NV_ENC_LEVEL_HEVC_62, VE, "level" }, + { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_1 }, 0, 0, VE, "level" }, + { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_2 }, 0, 0, VE, "level" }, + { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_21 }, 0, 0, VE, "level" }, + { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_3 }, 0, 0, VE, "level" }, + { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_31 }, 0, 0, VE, "level" }, + { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_4 }, 0, 0, VE, "level" }, + { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_41 }, 0, 0, VE, "level" }, + { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_5 }, 0, 0, VE, "level" }, + { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_51 }, 0, 0, VE, "level" }, + { "5.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_52 }, 0, 0, VE, "level" }, + { "6.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_6 }, 0, 0, VE, "level" }, + { "6.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_61 }, 0, 0, VE, "level" }, + { "6.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_HEVC_62 }, 0, 0, VE, "level" }, + { "tier", "Set the encoding tier", OFFSET(tier), AV_OPT_TYPE_INT, { .i64 = NV_ENC_TIER_HEVC_MAIN }, NV_ENC_TIER_HEVC_MAIN, NV_ENC_TIER_HEVC_HIGH, VE, "tier"}, + { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_TIER_HEVC_MAIN }, 0, 0, VE, "tier" }, + { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_TIER_HEVC_HIGH }, 0, 0, VE, "tier" }, + { "rc", "Override the preset rate-control", OFFSET(rc), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 0, VE, "rc" }, + { "constqp", "Constant QP mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_CONSTQP }, 0, 0, VE, "rc" }, + { "vbr", "Variable bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_VBR }, 0, 0, VE, "rc" }, + { "cbr", "Constant bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_CBR }, 0, 0, VE, "rc" }, + { "vbr_minqp", "Variable bitrate mode with MinQP", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_VBR_MINQP }, 0, 0, VE, "rc" }, + { "ll_2pass_quality", "Multi-pass optimized for image quality (only for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_QUALITY }, 0, 0, VE, "rc" }, + { "ll_2pass_size", "Multi-pass optimized for constant frame size (only for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP }, 0, 0, VE, "rc" }, + { "vbr_2pass", "Multi-pass variable bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_VBR }, 0, 0, VE, "rc" }, + { "surfaces", "Number of concurrent surfaces", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, INT_MAX, VE }, + { "device", "Select a specific NVENC device", OFFSET(device), AV_OPT_TYPE_INT, { .i64 = -1 }, -2, INT_MAX, VE, "device" }, + { "any", "Pick the first device available", 0, AV_OPT_TYPE_CONST, { .i64 = ANY_DEVICE }, 0, 0, VE, "device" }, + { "list", "List the available devices", 0, AV_OPT_TYPE_CONST, { .i64 = LIST_DEVICES }, 0, 0, VE, "device" }, + { NULL } +}; + +static const AVClass nvenc_hevc_class = { + .class_name = "nvenc_hevc", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +static const AVCodecDefault defaults[] = { + { "b", "0" }, + { "qmin", "-1" }, + { "qmax", "-1" }, + { "qdiff", "-1" }, + { "qblur", "-1" }, + { "qcomp", "-1" }, + { NULL }, +}; + +AVCodec ff_hevc_nvenc_encoder = { + .name = "nvenc_hevc", + .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC HEVC encoder"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_HEVC, + .init = ff_nvenc_encode_init, + .encode2 = ff_nvenc_encode_frame, + .close = ff_nvenc_encode_close, + .priv_data_size = sizeof(NVENCContext), + .priv_class = &nvenc_hevc_class, + .defaults = defaults, + .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12, + AV_PIX_FMT_YUV420P, + AV_PIX_FMT_YUV444P, + AV_PIX_FMT_NONE }, + .capabilities = CODEC_CAP_DELAY, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, +}; diff --git a/libavcodec/version.h b/libavcodec/version.h index c57bd85083..6105a63355 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -29,7 +29,7 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 56 -#define LIBAVCODEC_VERSION_MINOR 25 +#define LIBAVCODEC_VERSION_MINOR 26 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ -- cgit v1.2.3