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Diffstat (limited to 'src/encoder/video/cuda.c')
-rw-r--r--src/encoder/video/cuda.c468
1 files changed, 0 insertions, 468 deletions
diff --git a/src/encoder/video/cuda.c b/src/encoder/video/cuda.c
deleted file mode 100644
index 858f912..0000000
--- a/src/encoder/video/cuda.c
+++ /dev/null
@@ -1,468 +0,0 @@
-#include "../../../include/encoder/video/cuda.h"
-#include "../../../include/egl.h"
-#include "../../../include/cuda.h"
-#include "../../../external/nvEncodeAPI.h"
-
-#include <libavcodec/avcodec.h>
-#include <libavutil/hwcontext_cuda.h>
-
-#include <stdlib.h>
-#include <dlfcn.h>
-
-typedef struct {
- gsr_video_encoder_cuda_params params;
-
- unsigned int target_textures[2];
-
- AVBufferRef *device_ctx;
-
- gsr_cuda cuda;
- CUgraphicsResource cuda_graphics_resources[2];
- CUarray mapped_arrays[2];
- CUstream cuda_stream;
-} gsr_video_encoder_cuda;
-
-static bool gsr_video_encoder_cuda_setup_context(gsr_video_encoder_cuda *self, AVCodecContext *video_codec_context) {
- self->device_ctx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_CUDA);
- if(!self->device_ctx) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_context failed: failed to create hardware device context\n");
- return false;
- }
-
- AVHWDeviceContext *hw_device_context = (AVHWDeviceContext*)self->device_ctx->data;
- AVCUDADeviceContext *cuda_device_context = (AVCUDADeviceContext*)hw_device_context->hwctx;
- cuda_device_context->cuda_ctx = self->cuda.cu_ctx;
- if(av_hwdevice_ctx_init(self->device_ctx) < 0) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_context failed: failed to create hardware device context\n");
- av_buffer_unref(&self->device_ctx);
- return false;
- }
-
- AVBufferRef *frame_context = av_hwframe_ctx_alloc(self->device_ctx);
- if(!frame_context) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_context failed: failed to create hwframe context\n");
- av_buffer_unref(&self->device_ctx);
- return false;
- }
-
- AVHWFramesContext *hw_frame_context = (AVHWFramesContext*)frame_context->data;
- hw_frame_context->width = video_codec_context->width;
- hw_frame_context->height = video_codec_context->height;
- hw_frame_context->sw_format = self->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? AV_PIX_FMT_P010LE : AV_PIX_FMT_NV12;
- hw_frame_context->format = video_codec_context->pix_fmt;
- hw_frame_context->device_ctx = (AVHWDeviceContext*)self->device_ctx->data;
-
- if (av_hwframe_ctx_init(frame_context) < 0) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_context failed: failed to initialize hardware frame context "
- "(note: ffmpeg version needs to be > 4.0)\n");
- av_buffer_unref(&self->device_ctx);
- //av_buffer_unref(&frame_context);
- return false;
- }
-
- self->cuda_stream = cuda_device_context->stream;
- video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context);
- av_buffer_unref(&frame_context);
- return true;
-}
-
-static unsigned int gl_create_texture(gsr_egl *egl, int width, int height, int internal_format, unsigned int format) {
- unsigned int texture_id = 0;
- egl->glGenTextures(1, &texture_id);
- egl->glBindTexture(GL_TEXTURE_2D, texture_id);
- egl->glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, GL_UNSIGNED_BYTE, NULL);
-
- egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-
- egl->glBindTexture(GL_TEXTURE_2D, 0);
- return texture_id;
-}
-
-static bool cuda_register_opengl_texture(gsr_cuda *cuda, CUgraphicsResource *cuda_graphics_resource, CUarray *mapped_array, unsigned int texture_id) {
- CUresult res;
- res = cuda->cuGraphicsGLRegisterImage(cuda_graphics_resource, texture_id, GL_TEXTURE_2D, CU_GRAPHICS_REGISTER_FLAGS_NONE);
- if (res != CUDA_SUCCESS) {
- const char *err_str = "unknown";
- cuda->cuGetErrorString(res, &err_str);
- fprintf(stderr, "gsr error: cuda_register_opengl_texture: cuGraphicsGLRegisterImage failed, error: %s, texture " "id: %u\n", err_str, texture_id);
- return false;
- }
-
- res = cuda->cuGraphicsResourceSetMapFlags(*cuda_graphics_resource, CU_GRAPHICS_MAP_RESOURCE_FLAGS_NONE);
- res = cuda->cuGraphicsMapResources(1, cuda_graphics_resource, 0);
-
- res = cuda->cuGraphicsSubResourceGetMappedArray(mapped_array, *cuda_graphics_resource, 0, 0);
- return true;
-}
-
-static bool gsr_video_encoder_cuda_setup_textures(gsr_video_encoder_cuda *self, AVCodecContext *video_codec_context, AVFrame *frame) {
- const int res = av_hwframe_get_buffer(video_codec_context->hw_frames_ctx, frame, 0);
- if(res < 0) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_textures: av_hwframe_get_buffer failed: %d\n", res);
- return false;
- }
-
- const unsigned int internal_formats_nv12[2] = { GL_R8, GL_RG8 };
- const unsigned int internal_formats_p010[2] = { GL_R16, GL_RG16 };
- const unsigned int formats[2] = { GL_RED, GL_RG };
- const int div[2] = {1, 2}; // divide UV texture size by 2 because chroma is half size
-
- for(int i = 0; i < 2; ++i) {
- self->target_textures[i] = gl_create_texture(self->params.egl, video_codec_context->width / div[i], video_codec_context->height / div[i], self->params.color_depth == GSR_COLOR_DEPTH_8_BITS ? internal_formats_nv12[i] : internal_formats_p010[i], formats[i]);
- if(self->target_textures[i] == 0) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_textures: failed to create opengl texture\n");
- return false;
- }
-
- if(!cuda_register_opengl_texture(&self->cuda, &self->cuda_graphics_resources[i], &self->mapped_arrays[i], self->target_textures[i])) {
- return false;
- }
- }
-
- return true;
-}
-
-static void* open_nvenc_library(void) {
- dlerror(); /* clear */
- void *lib = dlopen("libnvidia-encode.so.1", RTLD_LAZY);
- if(!lib) {
- lib = dlopen("libnvidia-encode.so", RTLD_LAZY);
- if(!lib) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs failed: failed to load libnvidia-encode.so/libnvidia-encode.so.1, error: %s\n", dlerror());
- return NULL;
- }
- }
- return lib;
-}
-
-static bool profile_is_h264(const GUID *profile_guid) {
- const GUID *h264_guids[] = {
- &NV_ENC_H264_PROFILE_BASELINE_GUID,
- &NV_ENC_H264_PROFILE_MAIN_GUID,
- &NV_ENC_H264_PROFILE_HIGH_GUID,
- &NV_ENC_H264_PROFILE_PROGRESSIVE_HIGH_GUID,
- &NV_ENC_H264_PROFILE_CONSTRAINED_HIGH_GUID
- };
-
- for(int i = 0; i < 5; ++i) {
- if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
- return true;
- }
-
- return false;
-}
-
-static bool profile_is_hevc(const GUID *profile_guid) {
- const GUID *h264_guids[] = {
- &NV_ENC_HEVC_PROFILE_MAIN_GUID,
- };
-
- for(int i = 0; i < 1; ++i) {
- if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
- return true;
- }
-
- return false;
-}
-
-static bool profile_is_hevc_10bit(const GUID *profile_guid) {
- const GUID *h264_guids[] = {
- &NV_ENC_HEVC_PROFILE_MAIN10_GUID,
- };
-
- for(int i = 0; i < 1; ++i) {
- if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
- return true;
- }
-
- return false;
-}
-
-static bool profile_is_av1(const GUID *profile_guid) {
- const GUID *h264_guids[] = {
- &NV_ENC_AV1_PROFILE_MAIN_GUID,
- };
-
- for(int i = 0; i < 1; ++i) {
- if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
- return true;
- }
-
- return false;
-}
-
-static bool encoder_get_supported_profiles(const NV_ENCODE_API_FUNCTION_LIST *function_list, void *nvenc_encoder, const GUID *encoder_guid, gsr_supported_video_codecs *supported_video_codecs) {
- bool success = false;
- GUID *profile_guids = NULL;
-
- uint32_t profile_guid_count = 0;
- if(function_list->nvEncGetEncodeProfileGUIDCount(nvenc_encoder, *encoder_guid, &profile_guid_count) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeProfileGUIDCount failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
- goto fail;
- }
-
- if(profile_guid_count == 0)
- goto fail;
-
- profile_guids = calloc(profile_guid_count, sizeof(GUID));
- if(!profile_guids) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to allocate %d guids\n", (int)profile_guid_count);
- goto fail;
- }
-
- if(function_list->nvEncGetEncodeProfileGUIDs(nvenc_encoder, *encoder_guid, profile_guids, profile_guid_count, &profile_guid_count) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeProfileGUIDs failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
- goto fail;
- }
-
- for(uint32_t i = 0; i < profile_guid_count; ++i) {
- if(profile_is_h264(&profile_guids[i])) {
- supported_video_codecs->h264 = true;
- } else if(profile_is_hevc(&profile_guids[i])) {
- supported_video_codecs->hevc = true;
- } else if(profile_is_hevc_10bit(&profile_guids[i])) {
- supported_video_codecs->hevc_hdr = true;
- supported_video_codecs->hevc_10bit = true;
- } else if(profile_is_av1(&profile_guids[i])) {
- supported_video_codecs->av1 = true;
- supported_video_codecs->av1_hdr = true;
- supported_video_codecs->av1_10bit = true;
- }
- }
-
- success = true;
- fail:
-
- if(profile_guids)
- free(profile_guids);
-
- return success;
-}
-
-static bool get_supported_video_codecs(const NV_ENCODE_API_FUNCTION_LIST *function_list, void *nvenc_encoder, gsr_supported_video_codecs *supported_video_codecs) {
- bool success = false;
- GUID *encoder_guids = NULL;
- *supported_video_codecs = (gsr_supported_video_codecs){0};
-
- uint32_t encode_guid_count = 0;
- if(function_list->nvEncGetEncodeGUIDCount(nvenc_encoder, &encode_guid_count) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeGUIDCount failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
- goto fail;
- }
-
- if(encode_guid_count == 0)
- goto fail;
-
- encoder_guids = calloc(encode_guid_count, sizeof(GUID));
- if(!encoder_guids) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to allocate %d guids\n", (int)encode_guid_count);
- goto fail;
- }
-
- if(function_list->nvEncGetEncodeGUIDs(nvenc_encoder, encoder_guids, encode_guid_count, &encode_guid_count) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeGUIDs failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
- goto fail;
- }
-
- for(uint32_t i = 0; i < encode_guid_count; ++i) {
- encoder_get_supported_profiles(function_list, nvenc_encoder, &encoder_guids[i], supported_video_codecs);
- }
-
- success = true;
- fail:
-
- if(encoder_guids)
- free(encoder_guids);
-
- return success;
-}
-
-#define NVENCAPI_VERSION_470 (11 | (1 << 24))
-#define NVENCAPI_STRUCT_VERSION_470(ver) ((uint32_t)NVENCAPI_VERSION_470 | ((ver)<<16) | (0x7 << 28))
-
-static gsr_supported_video_codecs gsr_video_encoder_cuda_get_supported_codecs(gsr_video_encoder *encoder, bool cleanup) {
- (void)encoder;
-
- void *nvenc_lib = NULL;
- void *nvenc_encoder = NULL;
- gsr_cuda cuda;
- memset(&cuda, 0, sizeof(cuda));
- gsr_supported_video_codecs supported_video_codecs = {0};
-
- if(!gsr_cuda_load(&cuda, NULL, false)) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to load cuda\n");
- goto done;
- }
-
- nvenc_lib = open_nvenc_library();
- if(!nvenc_lib)
- goto done;
-
- typedef NVENCSTATUS NVENCAPI (*FUNC_NvEncodeAPICreateInstance)(NV_ENCODE_API_FUNCTION_LIST *functionList);
- FUNC_NvEncodeAPICreateInstance nvEncodeAPICreateInstance = (FUNC_NvEncodeAPICreateInstance)dlsym(nvenc_lib, "NvEncodeAPICreateInstance");
- if(!nvEncodeAPICreateInstance) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to find NvEncodeAPICreateInstance in libnvidia-encode.so\n");
- goto done;
- }
-
- NV_ENCODE_API_FUNCTION_LIST function_list;
- memset(&function_list, 0, sizeof(function_list));
- function_list.version = NVENCAPI_STRUCT_VERSION(2);
- if(nvEncodeAPICreateInstance(&function_list) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncodeAPICreateInstance failed\n");
- goto done;
- }
-
- NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS params;
- memset(&params, 0, sizeof(params));
- params.version = NVENCAPI_STRUCT_VERSION(1);
- params.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
- params.device = cuda.cu_ctx;
- params.apiVersion = NVENCAPI_VERSION;
- if(function_list.nvEncOpenEncodeSessionEx(&params, &nvenc_encoder) != NV_ENC_SUCCESS) {
- // Old nvidia gpus dont support the new nvenc api (which is required for av1).
- // In such cases fallback to old api version if possible and try again.
- function_list.version = NVENCAPI_STRUCT_VERSION_470(2);
- if(nvEncodeAPICreateInstance(&function_list) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncodeAPICreateInstance (retry) failed\n");
- goto done;
- }
-
- params.version = NVENCAPI_STRUCT_VERSION_470(1);
- params.apiVersion = NVENCAPI_VERSION_470;
- if(function_list.nvEncOpenEncodeSessionEx(&params, &nvenc_encoder) != NV_ENC_SUCCESS) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncOpenEncodeSessionEx (retry) failed\n");
- goto done;
- }
- }
-
- get_supported_video_codecs(&function_list, nvenc_encoder, &supported_video_codecs);
-
- done:
- if(cleanup) {
- if(nvenc_encoder)
- function_list.nvEncDestroyEncoder(nvenc_encoder);
- if(nvenc_lib)
- dlclose(nvenc_lib);
- gsr_cuda_unload(&cuda);
- }
-
- return supported_video_codecs;
-}
-
-static void gsr_video_encoder_cuda_stop(gsr_video_encoder_cuda *self, AVCodecContext *video_codec_context);
-
-static bool gsr_video_encoder_cuda_start(gsr_video_encoder *encoder, AVCodecContext *video_codec_context, AVFrame *frame) {
- gsr_video_encoder_cuda *encoder_cuda = encoder->priv;
-
- const bool overclock = gsr_egl_get_display_server(encoder_cuda->params.egl) == GSR_DISPLAY_SERVER_X11 ? encoder_cuda->params.overclock : false;
- if(!gsr_cuda_load(&encoder_cuda->cuda, encoder_cuda->params.egl->x11.dpy, overclock)) {
- fprintf(stderr, "gsr error: gsr_video_encoder_cuda_start: failed to load cuda\n");
- gsr_video_encoder_cuda_stop(encoder_cuda, video_codec_context);
- return false;
- }
-
- if(!gsr_video_encoder_cuda_setup_context(encoder_cuda, video_codec_context)) {
- gsr_video_encoder_cuda_stop(encoder_cuda, video_codec_context);
- return false;
- }
-
- if(!gsr_video_encoder_cuda_setup_textures(encoder_cuda, video_codec_context, frame)) {
- gsr_video_encoder_cuda_stop(encoder_cuda, video_codec_context);
- return false;
- }
-
- return true;
-}
-
-void gsr_video_encoder_cuda_stop(gsr_video_encoder_cuda *self, AVCodecContext *video_codec_context) {
- self->params.egl->glDeleteTextures(2, self->target_textures);
- self->target_textures[0] = 0;
- self->target_textures[1] = 0;
-
- if(video_codec_context->hw_frames_ctx)
- av_buffer_unref(&video_codec_context->hw_frames_ctx);
- if(self->device_ctx)
- av_buffer_unref(&self->device_ctx);
-
- if(self->cuda.cu_ctx) {
- for(int i = 0; i < 2; ++i) {
- if(self->cuda_graphics_resources[i]) {
- self->cuda.cuGraphicsUnmapResources(1, &self->cuda_graphics_resources[i], 0);
- self->cuda.cuGraphicsUnregisterResource(self->cuda_graphics_resources[i]);
- self->cuda_graphics_resources[i] = 0;
- }
- }
- }
-
- gsr_cuda_unload(&self->cuda);
-}
-
-static void gsr_video_encoder_cuda_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame) {
- gsr_video_encoder_cuda *encoder_cuda = encoder->priv;
- const int div[2] = {1, 2}; // divide UV texture size by 2 because chroma is half size
- for(int i = 0; i < 2; ++i) {
- CUDA_MEMCPY2D memcpy_struct;
- memcpy_struct.srcXInBytes = 0;
- memcpy_struct.srcY = 0;
- memcpy_struct.srcMemoryType = CU_MEMORYTYPE_ARRAY;
-
- memcpy_struct.dstXInBytes = 0;
- memcpy_struct.dstY = 0;
- memcpy_struct.dstMemoryType = CU_MEMORYTYPE_DEVICE;
-
- memcpy_struct.srcArray = encoder_cuda->mapped_arrays[i];
- memcpy_struct.srcPitch = frame->width / div[i];
- memcpy_struct.dstDevice = (CUdeviceptr)frame->data[i];
- memcpy_struct.dstPitch = frame->linesize[i];
- memcpy_struct.WidthInBytes = frame->width * (encoder_cuda->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? 2 : 1);
- memcpy_struct.Height = frame->height / div[i];
- // TODO: Remove this copy if possible
- encoder_cuda->cuda.cuMemcpy2DAsync_v2(&memcpy_struct, encoder_cuda->cuda_stream);
- }
-
- // TODO: needed?
- encoder_cuda->cuda.cuStreamSynchronize(encoder_cuda->cuda_stream);
-}
-
-static void gsr_video_encoder_cuda_get_textures(gsr_video_encoder *encoder, unsigned int *textures, int *num_textures, gsr_destination_color *destination_color) {
- gsr_video_encoder_cuda *encoder_cuda = encoder->priv;
- textures[0] = encoder_cuda->target_textures[0];
- textures[1] = encoder_cuda->target_textures[1];
- *num_textures = 2;
- *destination_color = encoder_cuda->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? GSR_DESTINATION_COLOR_P010 : GSR_DESTINATION_COLOR_NV12;
-}
-
-static void gsr_video_encoder_cuda_destroy(gsr_video_encoder *encoder, AVCodecContext *video_codec_context) {
- gsr_video_encoder_cuda_stop(encoder->priv, video_codec_context);
- free(encoder->priv);
- free(encoder);
-}
-
-gsr_video_encoder* gsr_video_encoder_cuda_create(const gsr_video_encoder_cuda_params *params) {
- gsr_video_encoder *encoder = calloc(1, sizeof(gsr_video_encoder));
- if(!encoder)
- return NULL;
-
- gsr_video_encoder_cuda *encoder_cuda = calloc(1, sizeof(gsr_video_encoder_cuda));
- if(!encoder_cuda) {
- free(encoder);
- return NULL;
- }
-
- encoder_cuda->params = *params;
-
- *encoder = (gsr_video_encoder) {
- .get_supported_codecs = gsr_video_encoder_cuda_get_supported_codecs,
- .start = gsr_video_encoder_cuda_start,
- .copy_textures_to_frame = gsr_video_encoder_cuda_copy_textures_to_frame,
- .get_textures = gsr_video_encoder_cuda_get_textures,
- .destroy = gsr_video_encoder_cuda_destroy,
- .priv = encoder_cuda
- };
-
- return encoder;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 07:00:46 +0000