Please mark it as non-free, the header clearly says that it must not be used for open-source software.
It only says not to distribute the header, the compiled binary and the code using it should be free to distribute.
Please use tools/patcheck on your patchfile: It shows many issues most of which you should be able to fix quickly, skip the ones that make no sense to you, the tool is not error-free. (Tabs and trailing whitespace cannot be committed.)
Fixed now, new patch is attached and on github.
From 4239af3cf66cdaa9ad99386bf728af4c1d1aca8a Mon Sep 17 00:00:00 2001
From: Timo Rothenpieler <t...@rothenpieler.org>
Date: Wed, 26 Nov 2014 11:08:11 +0100
Subject: [PATCH] Add NVENC encoder
---
Changelog | 1 +
configure | 11 +-
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 1 +
libavcodec/nvenc.c | 932 ++++++++++++++++++++++++++++++++++++++++++++++++
libavcodec/nvenc_api.c | 275 ++++++++++++++
libavcodec/nvenc_api.h | 35 ++
libavcodec/nvenc_cuda.h | 62 ++++
8 files changed, 1316 insertions(+), 2 deletions(-)
create mode 100644 libavcodec/nvenc.c
create mode 100644 libavcodec/nvenc_api.c
create mode 100644 libavcodec/nvenc_api.h
create mode 100644 libavcodec/nvenc_cuda.h
diff --git a/Changelog b/Changelog
index 7172d0c..d26b7fa 100644
--- a/Changelog
+++ b/Changelog
@@ -17,6 +17,7 @@ version <next>:
- WebP muxer with animated WebP support
- zygoaudio decoding support
- APNG demuxer
+- nvenc encoder
version 2.4:
diff --git a/configure b/configure
index 38619c4..d0b790c 100755
--- a/configure
+++ b/configure
@@ -261,6 +261,7 @@ External library support:
--enable-libzvbi enable teletext support via libzvbi [no]
--disable-lzma disable lzma [autodetect]
--enable-decklink enable Blackmagick DeckLink I/O support [no]
+ --enable-nvenc enable NVIDIA NVENC support [no]
--enable-openal enable OpenAL 1.1 capture support [no]
--enable-opencl enable OpenCL code
--enable-opengl enable OpenGL rendering [no]
@@ -1393,6 +1394,7 @@ EXTERNAL_LIBRARY_LIST="
libzmq
libzvbi
lzma
+ nvenc
openal
opencl
opengl
@@ -2389,6 +2391,7 @@ libxvid_encoder_deps="libxvid"
libutvideo_decoder_deps="libutvideo"
libutvideo_encoder_deps="libutvideo"
libzvbi_teletext_decoder_deps="libzvbi"
+nvenc_encoder_deps="nvenc"
# demuxers / muxers
ac3_demuxer_select="ac3_parser"
@@ -2569,9 +2572,7 @@ drawtext_filter_deps="libfreetype"
ebur128_filter_deps="gpl"
flite_filter_deps="libflite"
frei0r_filter_deps="frei0r dlopen"
-frei0r_filter_extralibs='$ldl'
frei0r_src_filter_deps="frei0r dlopen"
-frei0r_src_filter_extralibs='$ldl'
geq_filter_deps="gpl"
histeq_filter_deps="gpl"
hqdn3d_filter_deps="gpl"
@@ -4650,6 +4651,11 @@ elif check_func dlopen -ldl; then
ldl=-ldl
fi
+# set a few flags which depend on ldl and can't be set earlier
+nvenc_encoder_extralibs='$ldl'
+frei0r_filter_extralibs='$ldl'
+frei0r_src_filter_extralibs='$ldl'
+
if ! disabled network; then
check_func getaddrinfo $network_extralibs
check_func getservbyport $network_extralibs
@@ -4913,6 +4919,7 @@ enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
enabled libzmq && require_pkg_config libzmq zmq.h zmq_ctx_new
enabled libzvbi && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
+enabled nvenc && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; }
enabled openal && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
die "ERROR: openal not found"; } &&
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index fa0f53d..cc41564 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -347,6 +347,7 @@ OBJS-$(CONFIG_MXPEG_DECODER) += mxpegdec.o
OBJS-$(CONFIG_NELLYMOSER_DECODER) += nellymoserdec.o nellymoser.o
OBJS-$(CONFIG_NELLYMOSER_ENCODER) += nellymoserenc.o nellymoser.o
OBJS-$(CONFIG_NUV_DECODER) += nuv.o rtjpeg.o
+OBJS-$(CONFIG_NVENC_ENCODER) += nvenc.o nvenc_api.o
OBJS-$(CONFIG_ON2AVC_DECODER) += on2avc.o on2avcdata.o
OBJS-$(CONFIG_OPUS_DECODER) += opusdec.o opus.o opus_celt.o \
opus_imdct.o opus_silk.o \
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 0d39d33..8ceee2f 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -223,6 +223,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(MVC2, mvc2);
REGISTER_DECODER(MXPEG, mxpeg);
REGISTER_DECODER(NUV, nuv);
+ REGISTER_ENCODER(NVENC, nvenc);
REGISTER_DECODER(PAF_VIDEO, paf_video);
REGISTER_ENCDEC (PAM, pam);
REGISTER_ENCDEC (PBM, pbm);
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
new file mode 100644
index 0000000..3cb98d3
--- /dev/null
+++ b/libavcodec/nvenc.c
@@ -0,0 +1,932 @@
+/*
+ * H.264 hardware encoding using nvidia nvenc
+ * Copyright (c) 2014 Timo Rothenpieler <t...@rothenpieler.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+#include "libavutil/internal.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/avassert.h"
+#include "libavutil/opt.h"
+#include "libavutil/mem.h"
+#include "avcodec.h"
+#include "internal.h"
+
+#include "nvenc_cuda.h"
+#include "nvenc_api.h"
+
+typedef struct NvencInputSurface
+{
+ NV_ENC_INPUT_PTR inputSurface;
+ int width;
+ int height;
+
+ int lockCount;
+
+ NV_ENC_BUFFER_FORMAT format;
+} NvencInputSurface;
+
+typedef struct NvencOutputSurface
+{
+ NV_ENC_OUTPUT_PTR outputSurface;
+ int size;
+
+ NvencInputSurface *inputSurface;
+
+ int busy;
+} NvencOutputSurface;
+
+typedef struct NvencOutputSurfaceList
+{
+ NvencOutputSurface *surface;
+ struct NvencOutputSurfaceList *next;
+} NvencOutputSurfaceList;
+
+typedef struct NvencTimestampList
+{
+ int64_t timestamp;
+ struct NvencTimestampList *next;
+} NvencTimestampList;
+
+typedef struct NvencContext
+{
+ AVClass *avclass;
+
+ NV_ENC_INITIALIZE_PARAMS initEncodeParams;
+ NV_ENC_CONFIG encodeConfig;
+ CUcontext cuContext;
+
+ int maxSurfaceCount;
+ NvencInputSurface *inputSurfaces;
+ NvencOutputSurface *outputSurfaces;
+
+ NvencOutputSurfaceList *outputSurfaceQueue;
+ NvencOutputSurfaceList *outputSurfaceReadyQueue;
+ NvencTimestampList *timestampList;
+ int64_t lastDts;
+
+ void *nvencoder;
+
+ char *profile;
+ char *preset;
+ int cqp;
+ int cbr;
+ int twopass;
+ int gobpattern;
+} NvencContext;
+
+static const GUID dummy_license = { 0x0, 0x0, 0x0, { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 } };
+
+static void out_surf_queue_push(NvencOutputSurfaceList** head, NvencOutputSurface *surface)
+{
+ if (!*head) {
+ *head = av_malloc(sizeof(NvencOutputSurfaceList));
+ (*head)->next = 0;
+ (*head)->surface = surface;
+ return;
+ }
+
+ while ((*head)->next)
+ head = &((*head)->next);
+
+ (*head)->next = av_malloc(sizeof(NvencOutputSurfaceList));
+ (*head)->next->next = 0;
+ (*head)->next->surface = surface;
+}
+
+static NvencOutputSurface *out_surf_queue_pop(NvencOutputSurfaceList** head)
+{
+ NvencOutputSurfaceList *tmp;
+ NvencOutputSurface *res;
+
+ if (!*head)
+ return 0;
+
+ tmp = *head;
+ res = tmp->surface;
+ *head = tmp->next;
+ av_free(tmp);
+
+ return res;
+}
+
+static void timestamp_list_insert_sorted(NvencTimestampList** head, int64_t timestamp)
+{
+ NvencTimestampList *newelem;
+ NvencTimestampList *prev;
+
+ if (!*head) {
+ *head = av_malloc(sizeof(NvencTimestampList));
+ (*head)->next = 0;
+ (*head)->timestamp = timestamp;
+ return;
+ }
+
+ prev = 0;
+ while (*head && timestamp >= (*head)->timestamp) {
+ prev = *head;
+ head = &((*head)->next);
+ }
+
+ newelem = av_malloc(sizeof(NvencTimestampList));
+ newelem->next = *head;
+ newelem->timestamp = timestamp;
+
+ if (*head) {
+ *head = newelem;
+ } else {
+ prev->next = newelem;
+ }
+}
+
+static int64_t timestamp_list_get_lowest(NvencTimestampList** head)
+{
+ NvencTimestampList *tmp;
+ int64_t res;
+
+ if (!*head)
+ return 0;
+
+ tmp = *head;
+ res = tmp->timestamp;
+ *head = tmp->next;
+ av_free(tmp);
+
+ return res;
+}
+
+static av_cold int nvenc_encode_init(AVCodecContext *avctx)
+{
+ NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS stEncodeSessionParams = { 0 };
+ NV_ENC_PRESET_CONFIG presetConfig = { 0 };
+ CUcontext cuContextCurr;
+ GUID encoderPreset = NV_ENC_PRESET_HQ_GUID;
+ GUID license = dummy_license;
+ NVENCSTATUS nvStatus = NV_ENC_SUCCESS;
+ int surfaceCount = 0;
+ int i, numMBs;
+ int isLL = 0;
+
+ NvencContext *ctx = avctx->priv_data;
+
+ if (!ff_nvenc_dyload_nvenc(avctx))
+ return AVERROR_EXTERNAL;
+
+ avctx->coded_frame = av_frame_alloc();
+ if (!avctx->coded_frame)
+ return AVERROR(ENOMEM);
+
+ memset(&ctx->initEncodeParams, 0, sizeof(NV_ENC_INITIALIZE_PARAMS));
+ memset(&ctx->encodeConfig, 0, sizeof(NV_ENC_CONFIG));
+
+ ctx->outputSurfaceQueue = 0;
+ ctx->outputSurfaceReadyQueue = 0;
+ ctx->timestampList = 0;
+ ctx->lastDts = AV_NOPTS_VALUE;
+ ctx->nvencoder = 0;
+
+ ctx->encodeConfig.version = NV_ENC_CONFIG_VER;
+ ctx->initEncodeParams.version = NV_ENC_INITIALIZE_PARAMS_VER;
+ presetConfig.version = NV_ENC_PRESET_CONFIG_VER;
+ presetConfig.presetCfg.version = NV_ENC_CONFIG_VER;
+ stEncodeSessionParams.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER;
+ stEncodeSessionParams.apiVersion = NVENCAPI_VERSION;
+ stEncodeSessionParams.clientKeyPtr = &license;
+
+ ctx->cuContext = 0;
+ if (ff_cuCtxCreate(&ctx->cuContext, 0, ff_pNvencDevices[ff_iNvencUseDeviceID]) != CUDA_SUCCESS
+ || ff_cuCtxPopCurrent(&cuContextCurr) != CUDA_SUCCESS) {
+ av_log(avctx, AV_LOG_FATAL, "Failed creating CUDA context for NVENC\n");
+ goto error;
+ }
+
+ stEncodeSessionParams.device = (void*)ctx->cuContext;
+ stEncodeSessionParams.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
+
+ nvStatus = ff_pNvEnc->nvEncOpenEncodeSessionEx(&stEncodeSessionParams, &ctx->nvencoder);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ ctx->nvencoder = 0;
+ av_log(avctx, AV_LOG_FATAL, "OpenEncodeSessionEx failed: 0x%x - invalid license key?\n", (int)nvStatus);
+ goto error;
+ }
+
+ if (ctx->preset) {
+ if (!strcmp(ctx->preset, "hp")) {
+ encoderPreset = NV_ENC_PRESET_HP_GUID;
+ } else if (!strcmp(ctx->preset, "hq")) {
+ encoderPreset = NV_ENC_PRESET_HQ_GUID;
+ } else if (!strcmp(ctx->preset, "bd")) {
+ encoderPreset = NV_ENC_PRESET_BD_GUID;
+ } else if (!strcmp(ctx->preset, "ll")) {
+ encoderPreset = NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID;
+ isLL = 1;
+ } else if (!strcmp(ctx->preset, "llhp")) {
+ encoderPreset = NV_ENC_PRESET_LOW_LATENCY_HP_GUID;
+ isLL = 1;
+ } else if (!strcmp(ctx->preset, "llhq")) {
+ encoderPreset = NV_ENC_PRESET_LOW_LATENCY_HQ_GUID;
+ isLL = 1;
+ } else if (!strcmp(ctx->preset, "default")) {
+ encoderPreset = NV_ENC_PRESET_DEFAULT_GUID;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Preset \"%s\" is unknown!\n", ctx->preset);
+ }
+ }
+
+ nvStatus = ff_pNvEnc->nvEncGetEncodePresetConfig(ctx->nvencoder, NV_ENC_CODEC_H264_GUID, encoderPreset, &presetConfig);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_FATAL, "GetEncodePresetConfig failed: 0x%x\n", (int)nvStatus);
+ goto error;
+ }
+
+ ctx->initEncodeParams.encodeGUID = NV_ENC_CODEC_H264_GUID;
+ ctx->initEncodeParams.encodeHeight = avctx->height;
+ ctx->initEncodeParams.encodeWidth = avctx->width;
+ ctx->initEncodeParams.darHeight = avctx->height;
+ ctx->initEncodeParams.darWidth = avctx->width;
+ ctx->initEncodeParams.frameRateNum = avctx->time_base.den;
+ ctx->initEncodeParams.frameRateDen = avctx->time_base.num * avctx->ticks_per_frame;
+
+ numMBs = ((avctx->width + 15) >> 4) * ((avctx->height + 15) >> 4);
+ ctx->maxSurfaceCount = (numMBs >= 8160) ? 16 : 32;
+
+ ctx->initEncodeParams.enableEncodeAsync = 0;
+ ctx->initEncodeParams.enablePTD = 1;
+
+ ctx->initEncodeParams.presetGUID = encoderPreset;
+
+ ctx->initEncodeParams.encodeConfig = &ctx->encodeConfig;
+ memcpy(&ctx->encodeConfig, &presetConfig.presetCfg, sizeof(NV_ENC_CONFIG));
+ ctx->encodeConfig.version = NV_ENC_CONFIG_VER;
+
+ if (avctx->gop_size >= 0) {
+ ctx->encodeConfig.gopLength = avctx->gop_size;
+ ctx->encodeConfig.encodeCodecConfig.h264Config.idrPeriod = avctx->gop_size;
+ }
+
+ if (avctx->bit_rate > 0)
+ ctx->encodeConfig.rcParams.averageBitRate = avctx->bit_rate;
+
+ if (avctx->rc_max_rate > 0)
+ ctx->encodeConfig.rcParams.maxBitRate = avctx->rc_max_rate;
+
+ if (ctx->cbr) {
+ if (!ctx->twopass) {
+ ctx->encodeConfig.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CBR;
+ } else if (ctx->twopass == 1 || isLL) {
+ ctx->encodeConfig.rcParams.rateControlMode = NV_ENC_PARAMS_RC_2_PASS_QUALITY;
+
+ ctx->encodeConfig.encodeCodecConfig.h264Config.adaptiveTransformMode = NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE;
+ ctx->encodeConfig.encodeCodecConfig.h264Config.fmoMode = NV_ENC_H264_FMO_DISABLE;
+
+ if (!isLL)
+ av_log(avctx, AV_LOG_WARNING, "Twopass mode is only known to work with low latency (ll, llhq, llhp) presets.\n");
+ } else {
+ ctx->encodeConfig.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CBR;
+ }
+ } else if (ctx->cqp >= 0) {
+ ctx->encodeConfig.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CONSTQP;
+ ctx->encodeConfig.rcParams.constQP.qpInterB = ctx->cqp;
+ ctx->encodeConfig.rcParams.constQP.qpInterP = ctx->cqp;
+ ctx->encodeConfig.rcParams.constQP.qpIntra = ctx->cqp;
+
+ avctx->qmin = -1;
+ avctx->qmax = -1;
+ } else if (avctx->qmin >= 0 && avctx->qmax >= 0) {
+ ctx->encodeConfig.rcParams.rateControlMode = NV_ENC_PARAMS_RC_VBR;
+
+ ctx->encodeConfig.rcParams.enableMinQP = 1;
+ ctx->encodeConfig.rcParams.enableMaxQP = 1;
+
+ ctx->encodeConfig.rcParams.minQP.qpInterB = avctx->qmin;
+ ctx->encodeConfig.rcParams.minQP.qpInterP = avctx->qmin;
+ ctx->encodeConfig.rcParams.minQP.qpIntra = avctx->qmin;
+
+ ctx->encodeConfig.rcParams.maxQP.qpInterB = avctx->qmax;
+ ctx->encodeConfig.rcParams.maxQP.qpInterP = avctx->qmax;
+ ctx->encodeConfig.rcParams.maxQP.qpIntra = avctx->qmax;
+ }
+
+ if (avctx->rc_buffer_size > 0)
+ ctx->encodeConfig.rcParams.vbvBufferSize = avctx->rc_buffer_size;
+
+ if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) {
+ ctx->encodeConfig.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FIELD;
+ } else {
+ ctx->encodeConfig.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME;
+ }
+
+ if (!ctx->profile) {
+ switch (avctx->profile) {
+ case FF_PROFILE_H264_BASELINE:
+ ctx->profile = av_strdup("baseline");
+ break;
+ case FF_PROFILE_H264_MAIN:
+ ctx->profile = av_strdup("main");
+ break;
+ default:
+ ctx->profile = av_strdup("high");
+ break;
+ }
+ }
+
+ ctx->encodeConfig.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID;
+
+ if (!strcmp(ctx->profile, "high")) {
+ ctx->encodeConfig.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID;
+ } else if (!strcmp(ctx->profile, "main")) {
+ ctx->encodeConfig.profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID;
+ } else if (!strcmp(ctx->profile, "baseline")) {
+ ctx->encodeConfig.profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID;
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "Unknown profile requested: %s\n", ctx->profile);
+ }
+
+ if (ctx->gobpattern >= 0) {
+ ctx->encodeConfig.frameIntervalP = 1;
+ }
+
+ ctx->encodeConfig.encodeCodecConfig.h264Config.h264VUIParameters.colourDescriptionPresentFlag = 1;
+ ctx->encodeConfig.encodeCodecConfig.h264Config.h264VUIParameters.videoSignalTypePresentFlag = 1;
+
+ ctx->encodeConfig.encodeCodecConfig.h264Config.h264VUIParameters.colourMatrix = avctx->colorspace;
+ ctx->encodeConfig.encodeCodecConfig.h264Config.h264VUIParameters.colourPrimaries = avctx->color_primaries;
+ ctx->encodeConfig.encodeCodecConfig.h264Config.h264VUIParameters.transferCharacteristics = avctx->color_trc;
+
+ ctx->encodeConfig.encodeCodecConfig.h264Config.h264VUIParameters.videoFullRangeFlag = avctx->color_range == AVCOL_RANGE_JPEG;
+
+ ctx->encodeConfig.encodeCodecConfig.h264Config.disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
+
+ nvStatus = ff_pNvEnc->nvEncInitializeEncoder(ctx->nvencoder, &ctx->initEncodeParams);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_FATAL, "InitializeEncoder failed: 0x%x\n", (int)nvStatus);
+ goto error;
+ }
+
+ ctx->inputSurfaces = (NvencInputSurface*)calloc(ctx->maxSurfaceCount, sizeof(NvencInputSurface));
+ ctx->outputSurfaces = (NvencOutputSurface*)calloc(ctx->maxSurfaceCount, sizeof(NvencOutputSurface));
+
+ for (surfaceCount = 0; surfaceCount < ctx->maxSurfaceCount; ++surfaceCount) {
+ NV_ENC_CREATE_INPUT_BUFFER allocSurf = { 0 };
+ NV_ENC_CREATE_BITSTREAM_BUFFER allocOut = { 0 };
+ allocSurf.version = NV_ENC_CREATE_INPUT_BUFFER_VER;
+ allocOut.version = NV_ENC_CREATE_BITSTREAM_BUFFER_VER;
+
+ allocSurf.width = (avctx->width + 31) & ~31;
+ allocSurf.height = (avctx->height + 31) & ~31;
+
+ allocSurf.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
+
+ switch (avctx->pix_fmt) {
+ case AV_PIX_FMT_YUV420P:
+ allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YV12_PL;
+ break;
+
+ case AV_PIX_FMT_NV12:
+ allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_NV12_PL;
+ break;
+
+ case AV_PIX_FMT_YUV444P:
+ allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YUV444_PL;
+ break;
+
+ default:
+ av_log(avctx, AV_LOG_FATAL, "Invalid input pixel format\n");
+ goto error;
+ }
+
+ nvStatus = ff_pNvEnc->nvEncCreateInputBuffer(ctx->nvencoder, &allocSurf);
+ if (nvStatus = NV_ENC_SUCCESS){
+ av_log(avctx, AV_LOG_FATAL, "CreateInputBuffer failed\n");
+ goto error;
+ }
+
+ ctx->inputSurfaces[surfaceCount].lockCount = 0;
+ ctx->inputSurfaces[surfaceCount].inputSurface = allocSurf.inputBuffer;
+ ctx->inputSurfaces[surfaceCount].format = allocSurf.bufferFmt;
+ ctx->inputSurfaces[surfaceCount].width = allocSurf.width;
+ ctx->inputSurfaces[surfaceCount].height = allocSurf.height;
+
+ allocOut.size = 1024 * 1024;
+ allocOut.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
+
+ nvStatus = ff_pNvEnc->nvEncCreateBitstreamBuffer(ctx->nvencoder, &allocOut);
+ if (nvStatus = NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_FATAL, "CreateBitstreamBuffer failed\n");
+ ctx->outputSurfaces[surfaceCount++].outputSurface = 0;
+ goto error;
+ }
+
+ ctx->outputSurfaces[surfaceCount].outputSurface = allocOut.bitstreamBuffer;
+ ctx->outputSurfaces[surfaceCount].size = allocOut.size;
+ ctx->outputSurfaces[surfaceCount].busy = 0;
+ }
+
+ if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
+ uint32_t outSize = 0;
+ char tmpHeader[256];
+ NV_ENC_SEQUENCE_PARAM_PAYLOAD payload = { 0 };
+ payload.version = NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER;
+
+ payload.spsppsBuffer = tmpHeader;
+ payload.inBufferSize = 256;
+ payload.outSPSPPSPayloadSize = &outSize;
+
+ nvStatus = ff_pNvEnc->nvEncGetSequenceParams(ctx->nvencoder, &payload);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_FATAL, "GetSequenceParams failed\n");
+ goto error;
+ }
+
+ avctx->extradata_size = outSize;
+ avctx->extradata = av_mallocz(outSize + FF_INPUT_BUFFER_PADDING_SIZE);
+
+ memcpy(avctx->extradata, tmpHeader, outSize);
+ } else {
+ avctx->extradata = 0;
+ avctx->extradata_size = 0;
+ }
+
+ if (ctx->encodeConfig.frameIntervalP > 1)
+ avctx->has_b_frames = 2;
+
+ if (ctx->encodeConfig.rcParams.averageBitRate > 0)
+ avctx->bit_rate = ctx->encodeConfig.rcParams.averageBitRate;
+
+ return 0;
+
+error:
+
+ for (i = 0; i < surfaceCount; ++i) {
+ ff_pNvEnc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->inputSurfaces[i].inputSurface);
+ if (ctx->outputSurfaces[i].outputSurface)
+ ff_pNvEnc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->outputSurfaces[i].outputSurface);
+ }
+
+ if (ctx->nvencoder)
+ ff_pNvEnc->nvEncDestroyEncoder(ctx->nvencoder);
+
+ if (ctx->cuContext)
+ ff_cuCtxDestroy(ctx->cuContext);
+
+ ff_nvenc_unload_nvenc(avctx);
+
+ ctx->nvencoder = 0;
+ ctx->cuContext = 0;
+
+ return AVERROR_EXTERNAL;
+}
+
+static av_cold int nvenc_encode_close(AVCodecContext *avctx)
+{
+ NvencContext *ctx = avctx->priv_data;
+ int i;
+
+ if (ctx->profile)
+ av_freep(&ctx->profile);
+
+ if (avctx->extradata)
+ av_freep(&avctx->extradata);
+
+ while (ctx->timestampList)
+ timestamp_list_get_lowest(&ctx->timestampList);
+
+ while (ctx->outputSurfaceReadyQueue)
+ out_surf_queue_pop(&ctx->outputSurfaceReadyQueue);
+
+ while (ctx->outputSurfaceQueue)
+ out_surf_queue_pop(&ctx->outputSurfaceQueue);
+
+ for (i = 0; i < ctx->maxSurfaceCount; ++i) {
+ ff_pNvEnc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->inputSurfaces[i].inputSurface);
+ ff_pNvEnc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->outputSurfaces[i].outputSurface);
+ }
+ ctx->maxSurfaceCount = 0;
+
+ ff_pNvEnc->nvEncDestroyEncoder(ctx->nvencoder);
+ ctx->nvencoder = 0;
+
+ ff_cuCtxDestroy(ctx->cuContext);
+ ctx->cuContext = 0;
+
+ ff_nvenc_unload_nvenc(avctx);
+
+ av_frame_free(&avctx->coded_frame);
+
+ return 0;
+}
+
+static int process_output_surface(AVCodecContext *avctx, AVPacket *pkt, AVFrame *coded_frame, NvencOutputSurface *tmpoutsurf)
+{
+ NvencContext *ctx = avctx->priv_data;
+ uint32_t *sliceOffsets = (uint32_t*)calloc(ctx->encodeConfig.encodeCodecConfig.h264Config.sliceModeData, sizeof(uint32_t));
+ NV_ENC_LOCK_BITSTREAM lockParams = { 0 };
+ NVENCSTATUS nvStatus;
+
+ lockParams.version = NV_ENC_LOCK_BITSTREAM_VER;
+
+ lockParams.doNotWait = 0;
+ lockParams.outputBitstream = tmpoutsurf->outputSurface;
+ lockParams.sliceOffsets = sliceOffsets;
+
+ nvStatus = ff_pNvEnc->nvEncLockBitstream(ctx->nvencoder, &lockParams);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed locking bitstream buffer\n");
+ timestamp_list_get_lowest(&ctx->timestampList);
+ return 0;
+ }
+
+ if (ff_alloc_packet2(avctx, pkt, lockParams.bitstreamSizeInBytes) < 0) {
+ ff_pNvEnc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->outputSurface);
+ timestamp_list_get_lowest(&ctx->timestampList);
+ return 0;
+ }
+
+ memcpy(pkt->data, lockParams.bitstreamBufferPtr, lockParams.bitstreamSizeInBytes);
+
+ nvStatus = ff_pNvEnc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->outputSurface);
+ if (nvStatus != NV_ENC_SUCCESS)
+ av_log(avctx, AV_LOG_ERROR, "Failed unlocking bitstream buffer, expect the gates of mordor to open\n");
+
+ switch (lockParams.pictureType) {
+ case NV_ENC_PIC_TYPE_IDR:
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ 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;
+
+ default:
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_NONE;
+ break;
+ }
+
+ pkt->pts = lockParams.outputTimeStamp;
+ pkt->dts = timestamp_list_get_lowest(&ctx->timestampList) - ctx->encodeConfig.frameIntervalP;
+
+ if (pkt->dts > pkt->pts)
+ pkt->dts = pkt->pts;
+
+ if (ctx->lastDts != AV_NOPTS_VALUE && pkt->dts <= ctx->lastDts)
+ pkt->dts = ctx->lastDts + 1;
+
+ ctx->lastDts = pkt->dts;
+
+ return 1;
+}
+
+static int nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *frame, int *got_packet)
+{
+ NVENCSTATUS nvStatus;
+ NvencContext *ctx = avctx->priv_data;
+ NvencOutputSurface *tmpoutsurf;
+ int i = 0;
+
+ NV_ENC_PIC_PARAMS picParams = { 0 };
+ picParams.version = NV_ENC_PIC_PARAMS_VER;
+
+ if (frame) {
+ NV_ENC_LOCK_INPUT_BUFFER lockBufferParams = { 0 };
+ NvencInputSurface *inSurf = 0;
+
+ for (i = 0; i < ctx->maxSurfaceCount; ++i)
+ if (!ctx->inputSurfaces[i].lockCount)
+ inSurf = &ctx->inputSurfaces[i];
+ av_assert0(inSurf);
+
+ inSurf->lockCount = 1;
+
+ lockBufferParams.version = NV_ENC_LOCK_INPUT_BUFFER_VER;
+ lockBufferParams.inputBuffer = inSurf->inputSurface;
+
+ nvStatus = ff_pNvEnc->nvEncLockInputBuffer(ctx->nvencoder, &lockBufferParams);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed locking nvenc input buffer\n");
+ return 0;
+ }
+
+ if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
+ uint8_t *buf = lockBufferParams.bufferDataPtr;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch,
+ frame->data[0], frame->linesize[0],
+ avctx->width, avctx->height);
+
+ buf += inSurf->height * lockBufferParams.pitch;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch >> 1,
+ frame->data[2], frame->linesize[2],
+ avctx->width >> 1, avctx->height >> 1);
+
+ buf += (inSurf->height * lockBufferParams.pitch) >> 2;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch >> 1,
+ frame->data[1], frame->linesize[1],
+ avctx->width >> 1, avctx->height >> 1);
+ } else if (avctx->pix_fmt == AV_PIX_FMT_NV12) {
+ uint8_t *buf = lockBufferParams.bufferDataPtr;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch,
+ frame->data[0], frame->linesize[0],
+ avctx->width, avctx->height);
+
+ buf += inSurf->height * lockBufferParams.pitch;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch,
+ frame->data[1], frame->linesize[1],
+ avctx->width, avctx->height >> 1);
+ } else if (avctx->pix_fmt == AV_PIX_FMT_YUV444P) {
+ uint8_t *buf = lockBufferParams.bufferDataPtr;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch,
+ frame->data[0], frame->linesize[0],
+ avctx->width, avctx->height);
+
+ buf += inSurf->height * lockBufferParams.pitch;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch,
+ frame->data[1], frame->linesize[1],
+ avctx->width, avctx->height);
+
+ buf += inSurf->height * lockBufferParams.pitch;
+
+ av_image_copy_plane(buf, lockBufferParams.pitch,
+ frame->data[2], frame->linesize[2],
+ avctx->width, avctx->height);
+ } else {
+ av_log(avctx, AV_LOG_FATAL, "Invalid pixel format!\n");
+ return AVERROR(EINVAL);
+ }
+
+ nvStatus = ff_pNvEnc->nvEncUnlockInputBuffer(ctx->nvencoder, inSurf->inputSurface);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ av_log(avctx, AV_LOG_FATAL, "Failed unlocking input buffer!\n");
+ return AVERROR_EXTERNAL;
+ }
+
+ for (i = 0; i < ctx->maxSurfaceCount; ++i)
+ if (!ctx->outputSurfaces[i].busy)
+ break;
+
+ if (i == ctx->maxSurfaceCount) {
+ inSurf->lockCount = 0;
+ av_log(avctx, AV_LOG_ERROR, "No free output surface found!\n");
+ return 0;
+ }
+
+ ctx->outputSurfaces[i].inputSurface = inSurf;
+
+ picParams.inputBuffer = inSurf->inputSurface;
+ picParams.bufferFmt = inSurf->format;
+ picParams.inputWidth = avctx->width;
+ picParams.inputHeight = avctx->height;
+ picParams.outputBitstream = ctx->outputSurfaces[i].outputSurface;
+ picParams.completionEvent = 0;
+
+ if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) {
+ if (frame->top_field_first) {
+ picParams.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM;
+ } else {
+ picParams.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP;
+ }
+ } else {
+ picParams.pictureStruct = NV_ENC_PIC_STRUCT_FRAME;
+ }
+
+ picParams.encodePicFlags = 0;
+ picParams.inputTimeStamp = frame->pts;
+ picParams.inputDuration = 0;
+ picParams.codecPicParams.h264PicParams.sliceMode = ctx->encodeConfig.encodeCodecConfig.h264Config.sliceMode;
+ picParams.codecPicParams.h264PicParams.sliceModeData = ctx->encodeConfig.encodeCodecConfig.h264Config.sliceModeData;
+ memcpy(&picParams.rcParams, &ctx->encodeConfig.rcParams, sizeof(NV_ENC_RC_PARAMS));
+
+ timestamp_list_insert_sorted(&ctx->timestampList, frame->pts);
+ } else {
+ picParams.encodePicFlags = NV_ENC_PIC_FLAG_EOS;
+ }
+
+ nvStatus = ff_pNvEnc->nvEncEncodePicture(ctx->nvencoder, &picParams);
+
+ if (frame && nvStatus == NV_ENC_ERR_NEED_MORE_INPUT) {
+ out_surf_queue_push(&ctx->outputSurfaceQueue, &ctx->outputSurfaces[i]);
+ ctx->outputSurfaces[i].busy = 1;
+ }
+
+ if (nvStatus != NV_ENC_SUCCESS && nvStatus != NV_ENC_ERR_NEED_MORE_INPUT) {
+ av_log(avctx, AV_LOG_ERROR, "EncodePicture failed!\n");
+ return AVERROR_EXTERNAL;
+ }
+
+ if (nvStatus != NV_ENC_ERR_NEED_MORE_INPUT) {
+ while (ctx->outputSurfaceQueue) {
+ tmpoutsurf = out_surf_queue_pop(&ctx->outputSurfaceQueue);
+ out_surf_queue_push(&ctx->outputSurfaceReadyQueue, tmpoutsurf);
+ }
+
+ if (frame) {
+ out_surf_queue_push(&ctx->outputSurfaceReadyQueue, &ctx->outputSurfaces[i]);
+ ctx->outputSurfaces[i].busy = 1;
+ }
+ }
+
+ if (ctx->outputSurfaceReadyQueue) {
+ tmpoutsurf = out_surf_queue_pop(&ctx->outputSurfaceReadyQueue);
+
+ *got_packet = process_output_surface(avctx, pkt, avctx->coded_frame, tmpoutsurf);
+
+ tmpoutsurf->busy = 0;
+ av_assert0(tmpoutsurf->inputSurface->lockCount);
+ tmpoutsurf->inputSurface->lockCount--;
+ }
+
+ return 0;
+}
+
+static int pix_fmts_nvenc_initialized;
+
+static enum AVPixelFormat pix_fmts_nvenc[] = {
+ AV_PIX_FMT_NV12,
+ AV_PIX_FMT_NONE,
+ AV_PIX_FMT_NONE,
+ AV_PIX_FMT_NONE
+};
+
+static av_cold void nvenc_init_static(AVCodec *codec)
+{
+ NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS stEncodeSessionParams = { 0 };
+ CUcontext cuctxcur = 0, cuctx = 0;
+ NVENCSTATUS nvStatus;
+ void *nvencoder = 0;
+ GUID encodeGuid = NV_ENC_CODEC_H264_GUID;
+ GUID license = dummy_license;
+ int i = 0, pos = 0;
+ int gotnv12 = 0, got420 = 0, got444 = 0;
+ uint32_t inputFmtCount = 32;
+ NV_ENC_BUFFER_FORMAT inputFmts[32];
+
+ for (i = 0; i < 32; ++i)
+ inputFmts[i] = (NV_ENC_BUFFER_FORMAT)0;
+ i = 0;
+
+ if (pix_fmts_nvenc_initialized) {
+ codec->pix_fmts = pix_fmts_nvenc;
+ return;
+ }
+
+ if (!ff_nvenc_dyload_nvenc(0)) {
+ pix_fmts_nvenc_initialized = 1;
+ return;
+ }
+
+ stEncodeSessionParams.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER;
+ stEncodeSessionParams.apiVersion = NVENCAPI_VERSION;
+ stEncodeSessionParams.clientKeyPtr = &license;
+
+ cuctx = 0;
+ if (ff_cuCtxCreate(&cuctx, 0, ff_pNvencDevices[ff_iNvencUseDeviceID]) != CUDA_SUCCESS) {
+ cuctx = 0;
+ goto error;
+ }
+
+ if (ff_cuCtxPopCurrent(&cuctxcur) != CUDA_SUCCESS)
+ goto error;
+
+ stEncodeSessionParams.device = (void*)cuctx;
+ stEncodeSessionParams.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
+
+ nvStatus = ff_pNvEnc->nvEncOpenEncodeSessionEx(&stEncodeSessionParams, &nvencoder);
+ if (nvStatus != NV_ENC_SUCCESS) {
+ nvencoder = 0;
+ goto error;
+ }
+
+ nvStatus = ff_pNvEnc->nvEncGetInputFormats(nvencoder, encodeGuid, inputFmts, 32, &inputFmtCount);
+ if (nvStatus != NV_ENC_SUCCESS)
+ goto error;
+
+ pos = 0;
+ for (i = 0; i < inputFmtCount && pos < 3; ++i) {
+ if (!gotnv12 && (inputFmts[i] == NV_ENC_BUFFER_FORMAT_NV12_PL
+ || inputFmts[i] == NV_ENC_BUFFER_FORMAT_NV12_TILED16x16
+ || inputFmts[i] == NV_ENC_BUFFER_FORMAT_NV12_TILED64x16)) {
+
+ pix_fmts_nvenc[pos++] = AV_PIX_FMT_NV12;
+ gotnv12 = 1;
+ } else if (!got420 && (inputFmts[i] == NV_ENC_BUFFER_FORMAT_YV12_PL
+ || inputFmts[i] == NV_ENC_BUFFER_FORMAT_YV12_TILED16x16
+ || inputFmts[i] == NV_ENC_BUFFER_FORMAT_YV12_TILED64x16)) {
+
+ pix_fmts_nvenc[pos++] = AV_PIX_FMT_YUV420P;
+ got420 = 1;
+ } else if (!got444 && (inputFmts[i] == NV_ENC_BUFFER_FORMAT_YUV444_PL
+ || inputFmts[i] == NV_ENC_BUFFER_FORMAT_YUV444_TILED16x16
+ || inputFmts[i] == NV_ENC_BUFFER_FORMAT_YUV444_TILED64x16)) {
+
+ pix_fmts_nvenc[pos++] = AV_PIX_FMT_YUV444P;
+ got444 = 1;
+ }
+ }
+
+ pix_fmts_nvenc[pos] = AV_PIX_FMT_NONE;
+
+ pix_fmts_nvenc_initialized = 1;
+ codec->pix_fmts = pix_fmts_nvenc;
+
+ ff_pNvEnc->nvEncDestroyEncoder(nvencoder);
+ ff_cuCtxDestroy(cuctx);
+
+ ff_nvenc_unload_nvenc(0);
+
+ return;
+
+error:
+
+ if (nvencoder)
+ ff_pNvEnc->nvEncDestroyEncoder(nvencoder);
+
+ if (cuctx)
+ ff_cuCtxDestroy(cuctx);
+
+ pix_fmts_nvenc_initialized = 1;
+ pix_fmts_nvenc[0] = AV_PIX_FMT_NV12;
+ pix_fmts_nvenc[1] = AV_PIX_FMT_NONE;
+
+ codec->pix_fmts = pix_fmts_nvenc;
+
+ ff_nvenc_unload_nvenc(0);
+}
+
+#define OFFSET(x) offsetof(NvencContext, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "profile", "Set profile restrictions", OFFSET(profile), AV_OPT_TYPE_STRING, { .str = "high" }, 0, 0, VE},
+ { "preset", "Set the encoding preset (one of hq, hp, bd, ll, llhq, llhp, default)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "hq" }, 0, 0, VE },
+ { "cqp", "Constant quantization parameter rate control method", OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
+ { "cbr", "Use cbr encoding mode", OFFSET(cbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "2pass", "Use 2pass cbr encoding mode (low latency mode only)", OFFSET(twopass), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
+ { "goppattern", "Specifies the GOP pattern as follows: 0: I, 1: IPP, 2: IBP, 3: IBBP", OFFSET(gobpattern), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 3, VE },
+ { NULL }
+};
+
+static const AVClass nvenc_class = {
+ .class_name = "nvenc",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVCodecDefault nvenc_defaults[] = {
+ { "b", "0" },
+ { "qmin", "-1" },
+ { "qmax", "-1" },
+ { "qdiff", "-1" },
+ { "qblur", "-1" },
+ { "qcomp", "-1" },
+ { NULL },
+};
+
+AVCodec ff_nvenc_encoder = {
+ .name = "nvenc",
+ .long_name = NULL_IF_CONFIG_SMALL("Nvidia NVENC h264 encoder"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_H264,
+ .priv_data_size = sizeof(NvencContext),
+ .init = nvenc_encode_init,
+ .encode2 = nvenc_encode_frame,
+ .close = nvenc_encode_close,
+ .capabilities = CODEC_CAP_DELAY,
+ .priv_class = &nvenc_class,
+ .defaults = nvenc_defaults,
+ .init_static_data = nvenc_init_static
+};
diff --git a/libavcodec/nvenc_api.c b/libavcodec/nvenc_api.c
new file mode 100644
index 0000000..53d5fa8
--- /dev/null
+++ b/libavcodec/nvenc_api.c
@@ -0,0 +1,275 @@
+/*
+ * H.264 hardware encoding using nvidia nvenc
+ * Copyright (c) 2014 Timo Rothenpieler <t...@rothenpieler.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <dlfcn.h>
+#endif
+
+#include "libavutil/avassert.h"
+#include "avcodec.h"
+#include "internal.h"
+
+#include "nvenc_cuda.h"
+#include "nvenc_api.h"
+
+PCUINIT ff_cuInit = 0;
+PCUDEVICEGETCOUNT ff_cuDeviceGetCount = 0;
+PCUDEVICEGET ff_cuDeviceGet = 0;
+PCUDEVICEGETNAME ff_cuDeviceGetName = 0;
+PCUDEVICECOMPUTECAPABILITY ff_cuDeviceComputeCapability = 0;
+PCUCTXCREATE ff_cuCtxCreate = 0;
+PCUCTXPOPCURRENT ff_cuCtxPopCurrent = 0;
+PCUCTXDESTROY ff_cuCtxDestroy = 0;
+
+static int nvenc_init_count;
+static NV_ENCODE_API_FUNCTION_LIST nvEncFuncs;
+NV_ENCODE_API_FUNCTION_LIST *ff_pNvEnc = 0;
+int ff_iNvencDeviceCount = 0;
+CUdevice ff_pNvencDevices[16];
+unsigned int ff_iNvencUseDeviceID = 0;
+
+#ifdef _WIN32
+#define LOAD_FUNC(l, s) GetProcAddress(l, s)
+#define DL_CLOSE_FUNC(l) FreeLibrary(l)
+static HMODULE cudaLib;
+static HMODULE nvEncLib;
+#else
+#define LOAD_FUNC(l, s) dlsym(l, s)
+#define DL_CLOSE_FUNC(l) dlclose(l)
+static void *cudaLib;
+static void *nvEncLib;
+#endif
+
+#define ifav_log(...) if (avctx) { av_log(__VA_ARGS__); }
+
+#define CHECK_LOAD_FUNC(t, f, s) \
+{ \
+ f = (t)LOAD_FUNC(cudaLib, s); \
+ if (!f) { \
+ ifav_log(avctx, AV_LOG_FATAL, "Failed loading %s from CUDA library\n", s); \
+ goto error; \
+ } \
+}
+
+static int nvenc_dyload_cuda(AVCodecContext *avctx)
+{
+ if (cudaLib)
+ return 1;
+
+#if defined(_WIN32)
+ cudaLib = LoadLibrary(TEXT("nvcuda.dll"));
+#elif defined(__CYGWIN__)
+ cudaLib = dlopen("nvcuda.dll", RTLD_LAZY);
+#else
+ cudaLib = dlopen("libcuda.so", RTLD_LAZY);
+#endif
+
+ if (!cudaLib) {
+ ifav_log(avctx, AV_LOG_FATAL, "Failed loading CUDA library\n");
+ goto error;
+ }
+
+ CHECK_LOAD_FUNC(PCUINIT, ff_cuInit, "cuInit");
+ CHECK_LOAD_FUNC(PCUDEVICEGETCOUNT, ff_cuDeviceGetCount, "cuDeviceGetCount");
+ CHECK_LOAD_FUNC(PCUDEVICEGET, ff_cuDeviceGet, "cuDeviceGet");
+ CHECK_LOAD_FUNC(PCUDEVICEGETNAME, ff_cuDeviceGetName, "cuDeviceGetName");
+ CHECK_LOAD_FUNC(PCUDEVICECOMPUTECAPABILITY, ff_cuDeviceComputeCapability, "cuDeviceComputeCapability");
+ CHECK_LOAD_FUNC(PCUCTXCREATE, ff_cuCtxCreate, "cuCtxCreate_v2");
+ CHECK_LOAD_FUNC(PCUCTXPOPCURRENT, ff_cuCtxPopCurrent, "cuCtxPopCurrent_v2");
+ CHECK_LOAD_FUNC(PCUCTXDESTROY, ff_cuCtxDestroy, "cuCtxDestroy_v2");
+
+ return 1;
+
+error:
+
+ if (cudaLib)
+ DL_CLOSE_FUNC(cudaLib);
+
+ cudaLib = 0;
+
+ return 0;
+}
+
+static int checkCudaErrors(AVCodecContext *avctx, CUresult err, const char *func)
+{
+ if (err != CUDA_SUCCESS) {
+ ifav_log(avctx, AV_LOG_FATAL, ">> %s - failed with error code 0x%x\n", func, err);
+ return 0;
+ }
+ return 1;
+}
+#define checkCudaErrors(f) if (!checkCudaErrors(avctx, f, #f)) goto error
+
+static int nvenc_check_cuda(AVCodecContext *avctx)
+{
+ int deviceCount = 0;
+ CUdevice cuDevice = 0;
+ char gpu_name[128];
+ int SMminor = 0, SMmajor = 0;
+ int i, smver;
+
+ if (!nvenc_dyload_cuda(avctx))
+ return 0;
+
+ if (ff_iNvencDeviceCount > 0)
+ return 1;
+
+ checkCudaErrors(ff_cuInit(0));
+
+ checkCudaErrors(ff_cuDeviceGetCount(&deviceCount));
+
+ if (!deviceCount) {
+ ifav_log(avctx, AV_LOG_FATAL, "No CUDA capable devices found\n");
+ goto error;
+ }
+
+ ifav_log(avctx, AV_LOG_VERBOSE, "%d CUDA capable devices found\n", deviceCount);
+
+ ff_iNvencDeviceCount = 0;
+
+ for (i = 0; i < deviceCount; ++i) {
+ checkCudaErrors(ff_cuDeviceGet(&cuDevice, i));
+ checkCudaErrors(ff_cuDeviceGetName(gpu_name, 128, cuDevice));
+ checkCudaErrors(ff_cuDeviceComputeCapability(&SMmajor, &SMminor, cuDevice));
+
+ smver = (SMmajor << 4) | SMminor;
+
+ ifav_log(avctx, AV_LOG_VERBOSE, "[ GPU #%d - < %s > has Compute SM %d.%d, NVENC %s ]\n", i, gpu_name, SMmajor, SMminor, (smver >= 0x30) ? "Available" : "Not Available");
+
+ if (smver >= 0x30)
+ ff_pNvencDevices[ff_iNvencDeviceCount++] = cuDevice;
+ }
+
+ if (!ff_iNvencDeviceCount) {
+ ifav_log(avctx, AV_LOG_FATAL, "No NVENC capable devices found\n");
+ goto error;
+ }
+
+ return 1;
+
+error:
+
+ ff_iNvencDeviceCount = 0;
+
+ return 0;
+}
+
+av_cold int ff_nvenc_dyload_nvenc(AVCodecContext *avctx)
+{
+ PNVENCODEAPICREATEINSTANCE nvEncodeAPICreateInstance = 0;
+ NVENCSTATUS nvstatus;
+
+ if (!nvenc_check_cuda(avctx))
+ return 0;
+
+ if (ff_pNvEnc) {
+ nvenc_init_count++;
+ return 1;
+ }
+
+#if defined(_WIN32)
+ if (sizeof(void*) == 8) {
+ nvEncLib = LoadLibrary(TEXT("nvEncodeAPI64.dll"));
+ } else {
+ nvEncLib = LoadLibrary(TEXT("nvEncodeAPI.dll"));
+ }
+#elif defined(__CYGWIN__)
+ if (sizeof(void*) == 8) {
+ nvEncLib = dlopen("nvEncodeAPI64.dll", RTLD_LAZY);
+ } else {
+ nvEncLib = dlopen("nvEncodeAPI.dll", RTLD_LAZY);
+ }
+#else
+ nvEncLib = dlopen("libnvidia-encode.so", RTLD_LAZY);
+#endif
+
+ if (!nvEncLib) {
+ ifav_log(avctx, AV_LOG_FATAL, "Failed loading the nvenc library\n");
+ goto error;
+ }
+
+ nvEncodeAPICreateInstance = (PNVENCODEAPICREATEINSTANCE)LOAD_FUNC(nvEncLib, "NvEncodeAPICreateInstance");
+
+ if (!nvEncodeAPICreateInstance) {
+ ifav_log(avctx, AV_LOG_FATAL, "Failed to load nvenc entrypoint\n");
+ goto error;
+ }
+
+ ff_pNvEnc = &nvEncFuncs;
+ memset(ff_pNvEnc, 0, sizeof(NV_ENCODE_API_FUNCTION_LIST));
+ ff_pNvEnc->version = NV_ENCODE_API_FUNCTION_LIST_VER;
+
+ nvstatus = nvEncodeAPICreateInstance(ff_pNvEnc);
+
+ if (nvstatus != NV_ENC_SUCCESS) {
+ ifav_log(avctx, AV_LOG_FATAL, "Failed to create nvenc instance\n");
+ goto error;
+ }
+
+ ifav_log(avctx, AV_LOG_VERBOSE, "Nvenc initialized successfully\n");
+
+ nvenc_init_count = 1;
+
+ return 1;
+
+error:
+ if (nvEncLib)
+ DL_CLOSE_FUNC(nvEncLib);
+
+ nvEncLib = 0;
+ ff_pNvEnc = 0;
+ nvenc_init_count = 0;
+
+ return 0;
+}
+
+av_cold void ff_nvenc_unload_nvenc(AVCodecContext *avctx)
+{
+ if (nvenc_init_count <= 0)
+ return;
+
+ nvenc_init_count--;
+
+ if (nvenc_init_count > 0)
+ return;
+
+ DL_CLOSE_FUNC(nvEncLib);
+ nvEncLib = 0;
+ ff_pNvEnc = 0;
+
+ ff_iNvencDeviceCount = 0;
+
+ DL_CLOSE_FUNC(cudaLib);
+ cudaLib = 0;
+
+ ff_cuInit = 0;
+ ff_cuDeviceGetCount = 0;
+ ff_cuDeviceGet = 0;
+ ff_cuDeviceGetName = 0;
+ ff_cuDeviceComputeCapability = 0;
+ ff_cuCtxCreate = 0;
+ ff_cuCtxPopCurrent = 0;
+ ff_cuCtxDestroy = 0;
+
+ ifav_log(avctx, AV_LOG_VERBOSE, "Nvenc unloaded\n");
+}
diff --git a/libavcodec/nvenc_api.h b/libavcodec/nvenc_api.h
new file mode 100644
index 0000000..16b1c72
--- /dev/null
+++ b/libavcodec/nvenc_api.h
@@ -0,0 +1,35 @@
+/*
+ * H.264 hardware encoding using nvidia nvenc
+ * Copyright (c) 2014 Timo Rothenpieler <t...@rothenpieler.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_NVENC_API_H
+#define AVCODEC_NVENC_API_H
+
+#include <nvEncodeAPI.h>
+
+
+typedef NVENCSTATUS (NVENCAPI* PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList);
+
+extern NV_ENCODE_API_FUNCTION_LIST *ff_pNvEnc;
+
+int ff_nvenc_dyload_nvenc(AVCodecContext *avctx);
+void ff_nvenc_unload_nvenc(AVCodecContext *avctx);
+
+#endif
diff --git a/libavcodec/nvenc_cuda.h b/libavcodec/nvenc_cuda.h
new file mode 100644
index 0000000..ae43a22
--- /dev/null
+++ b/libavcodec/nvenc_cuda.h
@@ -0,0 +1,62 @@
+/*
+ * H.264 hardware encoding using nvidia nvenc
+ * Copyright (c) 2014 Timo Rothenpieler <t...@rothenpieler.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_NVENC_CUDA_H
+#define AVCODEC_NVENC_CUDA_H
+
+typedef enum cudaError_enum {
+ CUDA_SUCCESS = 0
+} CUresult;
+typedef int CUdevice;
+typedef void* CUcontext;
+
+#ifdef _WIN32
+#define CUDAAPI __stdcall
+#else
+#define CUDAAPI
+#endif
+
+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);
+
+extern PCUINIT ff_cuInit;
+extern PCUDEVICEGETCOUNT ff_cuDeviceGetCount;
+extern PCUDEVICEGET ff_cuDeviceGet;
+extern PCUDEVICEGETNAME ff_cuDeviceGetName;
+extern PCUDEVICECOMPUTECAPABILITY ff_cuDeviceComputeCapability;
+extern PCUCTXCREATE ff_cuCtxCreate;
+extern PCUCTXPOPCURRENT ff_cuCtxPopCurrent;
+extern PCUCTXDESTROY ff_cuCtxDestroy;
+
+int ff_nvenc_dyload_cuda(AVCodecContext *avctx);
+int ff_nvenc_check_cuda(AVCodecContext *avctx);
+
+extern int ff_iNvencDeviceCount;
+extern CUdevice ff_pNvencDevices[16];
+extern unsigned int ff_iNvencUseDeviceID;
+
+#endif
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