diff options
| -rw-r--r-- | README.md | 3 | ||||
| -rwxr-xr-x | build.sh | 6 | ||||
| -rw-r--r-- | include/NvFBCLibrary.hpp | 278 | ||||
| -rw-r--r-- | include/capture/capture.h | 25 | ||||
| -rw-r--r-- | include/capture/nvfbc.h | 17 | ||||
| -rw-r--r-- | include/vec2.h | 8 | ||||
| -rwxr-xr-x | install_ubuntu.sh | 2 | ||||
| -rw-r--r-- | project.conf | 1 | ||||
| -rw-r--r-- | src/capture/capture.c | 17 | ||||
| -rw-r--r-- | src/capture/nvfbc.c | 332 | ||||
| -rw-r--r-- | src/main.cpp | 142 |
11 files changed, 525 insertions, 306 deletions
@@ -28,7 +28,7 @@ If you are running another distro then you can run `install.sh` as root: `sudo . You can also install gpu screen recorder ([the gtk gui version](https://git.dec05eba.com/gpu-screen-recorder-gtk/)) from [flathub](https://flathub.org/apps/details/com.dec05eba.gpu_screen_recorder). # Dependencies -`libgl (libglvnd), ffmpeg, libx11, libxcomposite, libpulse`. You need to additionally have `libcuda.so` installed when you run `gpu-screen-recorder`.\ +`libgl (libglvnd), ffmpeg, libx11, libxcomposite, libxrandr, libpulse`. You need to additionally have `libcuda.so` installed when you run `gpu-screen-recorder`.\ Recording monitors requires a gpu with NvFBC support (note: this is not required when recording a single window!). Normally only tesla and quadro gpus support this, but by using [nvidia-patch](https://github.com/keylase/nvidia-patch) or [nvlax](https://github.com/illnyang/nvlax) you can do this on all gpus that support nvenc as well (gpus as old as the nvidia 600 series), provided you are not using outdated gpu drivers. # How to use @@ -57,7 +57,6 @@ FFMPEG only uses the GPU with CUDA when doing transcoding from an input video to # TODO * Support AMD and Intel, using VAAPI. libraries at compile-time. -* Clean up the code! * Dynamically change bitrate/resolution to match desired fps. This would be helpful when streaming for example, where the encode output speed also depends on upload speed to the streaming service. * Show cursor when recording. Currently the cursor is not visible when recording a window. * Implement opengl injection to capture texture. This fixes composition issues and (VRR) without having to use NvFBC direct capture. @@ -1,9 +1,11 @@ #!/bin/sh -e -dependencies="libavcodec libavformat libavutil x11 xcomposite libpulse libswresample" +dependencies="libavcodec libavformat libavutil x11 xcomposite xrandr libpulse libswresample" includes="$(pkg-config --cflags $dependencies)" libs="$(pkg-config --libs $dependencies) -ldl -pthread -lm" +gcc -c src/capture/capture.c -O2 -g0 -DNDEBUG $includes +gcc -c src/capture/nvfbc.c -O2 -g0 -DNDEBUG $includes g++ -c src/sound.cpp -O2 -g0 -DNDEBUG $includes g++ -c src/main.cpp -O2 -g0 -DNDEBUG $includes -g++ -o gpu-screen-recorder -O2 sound.o main.o -s $libs +g++ -o gpu-screen-recorder -O2 capture.o nvfbc.o sound.o main.o -s $libs echo "Successfully built gpu-screen-recorder"
\ No newline at end of file diff --git a/include/NvFBCLibrary.hpp b/include/NvFBCLibrary.hpp deleted file mode 100644 index 19b9bcc..0000000 --- a/include/NvFBCLibrary.hpp +++ /dev/null @@ -1,278 +0,0 @@ -#pragma once - -#include "../external/NvFBC.h" -#include <dlfcn.h> -#include <string.h> -#include <stdio.h> -#include <string.h> - -class NvFBCLibrary { -public: - ~NvFBCLibrary() { - if(fbc_handle_created) { - NVFBC_DESTROY_CAPTURE_SESSION_PARAMS destroy_capture_params; - memset(&destroy_capture_params, 0, sizeof(destroy_capture_params)); - destroy_capture_params.dwVersion = NVFBC_DESTROY_CAPTURE_SESSION_PARAMS_VER; - nv_fbc_function_list.nvFBCDestroyCaptureSession(nv_fbc_handle, &destroy_capture_params); - - NVFBC_DESTROY_HANDLE_PARAMS destroy_params; - memset(&destroy_params, 0, sizeof(destroy_params)); - destroy_params.dwVersion = NVFBC_DESTROY_HANDLE_PARAMS_VER; - nv_fbc_function_list.nvFBCDestroyHandle(nv_fbc_handle, &destroy_params); - } - - if(library) - dlclose(library); - } - - bool load() { - if(library) - return true; - - dlerror(); // clear - void *lib = dlopen("libnvidia-fbc.so.1", RTLD_LAZY); - if(!lib) { - fprintf(stderr, "Error: failed to load libnvidia-fbc.so.1, error: %s\n", dlerror()); - return false; - } - - nv_fbc_create_instance = (PNVFBCCREATEINSTANCE)dlsym(lib, "NvFBCCreateInstance"); - if(!nv_fbc_create_instance) { - fprintf(stderr, "Error: unable to resolve symbol 'NvFBCCreateInstance'\n"); - dlclose(lib); - return false; - } - - memset(&nv_fbc_function_list, 0, sizeof(nv_fbc_function_list)); - nv_fbc_function_list.dwVersion = NVFBC_VERSION; - NVFBCSTATUS status = nv_fbc_create_instance(&nv_fbc_function_list); - if(status != NVFBC_SUCCESS) { - fprintf(stderr, "Error: failed to create NvFBC instance (status: %d)\n", status); - dlclose(lib); - return false; - } - - library = lib; - return true; - } - - // If |display_to_capture| is "screen", then the entire x11 screen is captured (all displays). - bool create(const char *display_to_capture, uint32_t fps, /*out*/ uint32_t *display_width, /*out*/ uint32_t *display_height, uint32_t x = 0, uint32_t y = 0, uint32_t width = 0, uint32_t height = 0, bool direct_capture = false) { - if(!library || !display_to_capture || !display_width || !display_height || fbc_handle_created) - return false; - - const bool capture_region = (x > 0 || y > 0 || width > 0 || height > 0); - - NVFBCSTATUS status; - NVFBC_TRACKING_TYPE tracking_type; - bool capture_session_created = false; - uint32_t output_id = 0; - fbc_handle_created = false; - - NVFBC_CREATE_HANDLE_PARAMS create_params; - memset(&create_params, 0, sizeof(create_params)); - create_params.dwVersion = NVFBC_CREATE_HANDLE_PARAMS_VER; - - status = nv_fbc_function_list.nvFBCCreateHandle(&nv_fbc_handle, &create_params); - if(status != NVFBC_SUCCESS) { - // Reverse engineering for interoperability - const uint8_t enable_key[] = { 0xac, 0x10, 0xc9, 0x2e, 0xa5, 0xe6, 0x87, 0x4f, 0x8f, 0x4b, 0xf4, 0x61, 0xf8, 0x56, 0x27, 0xe9 }; - create_params.privateData = enable_key; - create_params.privateDataSize = 16; - - status = nv_fbc_function_list.nvFBCCreateHandle(&nv_fbc_handle, &create_params); - if(status != NVFBC_SUCCESS) { - fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle)); - return false; - } - } - fbc_handle_created = true; - - NVFBC_GET_STATUS_PARAMS status_params; - memset(&status_params, 0, sizeof(status_params)); - status_params.dwVersion = NVFBC_GET_STATUS_PARAMS_VER; - - status = nv_fbc_function_list.nvFBCGetStatus(nv_fbc_handle, &status_params); - if(status != NVFBC_SUCCESS) { - fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle)); - goto error_cleanup; - } - - if(status_params.bCanCreateNow == NVFBC_FALSE) { - fprintf(stderr, "Error: it's not possible to create a capture session on this system\n"); - goto error_cleanup; - } - - tracking_type = strcmp(display_to_capture, "screen") == 0 ? NVFBC_TRACKING_SCREEN : NVFBC_TRACKING_OUTPUT; - if(tracking_type == NVFBC_TRACKING_OUTPUT) { - if(!status_params.bXRandRAvailable) { - fprintf(stderr, "Error: the xrandr extension is not available\n"); - goto error_cleanup; - } - - if(status_params.bInModeset) { - fprintf(stderr, "Error: the x server is in modeset, unable to record\n"); - goto error_cleanup; - } - - output_id = get_output_id_from_display_name(status_params.outputs, status_params.dwOutputNum, display_to_capture, display_width, display_height); - if(output_id == 0) { - fprintf(stderr, "Error: display '%s' not found\n", display_to_capture); - goto error_cleanup; - } - } else { - *display_width = status_params.screenSize.w; - *display_height = status_params.screenSize.h; - } - - NVFBC_CREATE_CAPTURE_SESSION_PARAMS create_capture_params; - memset(&create_capture_params, 0, sizeof(create_capture_params)); - create_capture_params.dwVersion = NVFBC_CREATE_CAPTURE_SESSION_PARAMS_VER; - create_capture_params.eCaptureType = NVFBC_CAPTURE_SHARED_CUDA; - create_capture_params.bWithCursor = (!direct_capture || driver_supports_direct_capture_cursor()) ? NVFBC_TRUE : NVFBC_FALSE; - if(capture_region) { - create_capture_params.captureBox = { x, y, width, height }; - *display_width = width; - *display_height = height; - } - create_capture_params.eTrackingType = tracking_type; - create_capture_params.dwSamplingRateMs = 1000 / fps; - create_capture_params.bAllowDirectCapture = direct_capture ? NVFBC_TRUE : NVFBC_FALSE; - create_capture_params.bPushModel = direct_capture ? NVFBC_TRUE : NVFBC_FALSE; - if(tracking_type == NVFBC_TRACKING_OUTPUT) - create_capture_params.dwOutputId = output_id; - - status = nv_fbc_function_list.nvFBCCreateCaptureSession(nv_fbc_handle, &create_capture_params); - if(status != NVFBC_SUCCESS) { - fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle)); - goto error_cleanup; - } - capture_session_created = true; - - NVFBC_TOCUDA_SETUP_PARAMS setup_params; - memset(&setup_params, 0, sizeof(setup_params)); - setup_params.dwVersion = NVFBC_TOCUDA_SETUP_PARAMS_VER; - setup_params.eBufferFormat = NVFBC_BUFFER_FORMAT_BGRA; - - status = nv_fbc_function_list.nvFBCToCudaSetUp(nv_fbc_handle, &setup_params); - if(status != NVFBC_SUCCESS) { - fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle)); - goto error_cleanup; - } - - return true; - - error_cleanup: - if(fbc_handle_created) { - if(capture_session_created) { - NVFBC_DESTROY_CAPTURE_SESSION_PARAMS destroy_capture_params; - memset(&destroy_capture_params, 0, sizeof(destroy_capture_params)); - destroy_capture_params.dwVersion = NVFBC_DESTROY_CAPTURE_SESSION_PARAMS_VER; - nv_fbc_function_list.nvFBCDestroyCaptureSession(nv_fbc_handle, &destroy_capture_params); - } - - NVFBC_DESTROY_HANDLE_PARAMS destroy_params; - memset(&destroy_params, 0, sizeof(destroy_params)); - destroy_params.dwVersion = NVFBC_DESTROY_HANDLE_PARAMS_VER; - nv_fbc_function_list.nvFBCDestroyHandle(nv_fbc_handle, &destroy_params); - fbc_handle_created = false; - } - output_id = 0; - return false; - } - - bool capture(/*out*/ void *cu_device_ptr, uint32_t *byte_size) { - if(!library || !fbc_handle_created || !cu_device_ptr || !byte_size) - return false; - - NVFBCSTATUS status; - NVFBC_FRAME_GRAB_INFO frame_info; - memset(&frame_info, 0, sizeof(frame_info)); - - NVFBC_TOCUDA_GRAB_FRAME_PARAMS grab_params; - memset(&grab_params, 0, sizeof(grab_params)); - grab_params.dwVersion = NVFBC_TOCUDA_GRAB_FRAME_PARAMS_VER; - grab_params.dwFlags = NVFBC_TOCUDA_GRAB_FLAGS_NOWAIT | NVFBC_TOCUDA_GRAB_FLAGS_FORCE_REFRESH; - grab_params.pFrameGrabInfo = &frame_info; - grab_params.pCUDADeviceBuffer = cu_device_ptr; - - status = nv_fbc_function_list.nvFBCToCudaGrabFrame(nv_fbc_handle, &grab_params); - if(status != NVFBC_SUCCESS) { - fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle)); - return false; - } - - *byte_size = frame_info.dwByteSize; - // TODO: Check bIsNewFrame - // TODO: Check dwWidth and dwHeight and update size in video output in ffmpeg. This can happen when xrandr is used to change monitor resolution - - return true; - } -private: - static char to_upper(char c) { - if(c >= 'a' && c <= 'z') - return c - 32; - else - return c; - } - - static bool strcase_equals(const char *str1, const char *str2) { - for(;;) { - char c1 = to_upper(*str1); - char c2 = to_upper(*str2); - if(c1 != c2) - return false; - if(c1 == '\0' || c2 == '\0') - return true; - ++str1; - ++str2; - } - } - - // Returns 0 on failure - static uint32_t get_output_id_from_display_name(NVFBC_RANDR_OUTPUT_INFO *outputs, uint32_t num_outputs, const char *display_name, uint32_t *display_width, uint32_t *display_height) { - if(!outputs) - return 0; - - for(uint32_t i = 0; i < num_outputs; ++i) { - if(strcase_equals(outputs[i].name, display_name)) { - *display_width = outputs[i].trackedBox.w; - *display_height = outputs[i].trackedBox.h; - return outputs[i].dwId; - } - } - - return 0; - } - - // TODO: Test with optimus and open kernel modules - static bool driver_supports_direct_capture_cursor() { - FILE *f = fopen("/proc/driver/nvidia/version", "rb"); - if(!f) - return false; - - char buffer[2048]; - size_t bytes_read = fread(buffer, 1, sizeof(buffer) - 1, f); - buffer[bytes_read] = '\0'; - - bool supports_cursor = false; - const char *p = strstr(buffer, "Kernel Module"); - if(p) { - p += 13; - int driver_major_version = 0, driver_minor_version = 0; - if(sscanf(p, "%d.%d", &driver_major_version, &driver_minor_version) == 2) { - if(driver_major_version > 515 || (driver_major_version == 515 && driver_minor_version >= 57)) - supports_cursor = true; - } - } - - fclose(f); - return supports_cursor; - } -private: - void *library = nullptr; - PNVFBCCREATEINSTANCE nv_fbc_create_instance = nullptr; - NVFBC_API_FUNCTION_LIST nv_fbc_function_list; - NVFBC_SESSION_HANDLE nv_fbc_handle; - bool fbc_handle_created = false; -}; diff --git a/include/capture/capture.h b/include/capture/capture.h new file mode 100644 index 0000000..9e23a23 --- /dev/null +++ b/include/capture/capture.h @@ -0,0 +1,25 @@ +#ifndef GSR_CAPTURE_CAPTURE_H +#define GSR_CAPTURE_CAPTURE_H + +#include <stdbool.h> + +typedef struct AVFrame AVFrame; + +typedef struct gsr_capture gsr_capture; + +struct gsr_capture { + int (*start)(gsr_capture *cap); + void (*stop)(gsr_capture *cap); + int (*capture)(gsr_capture *cap, AVFrame *frame); + void (*destroy)(gsr_capture *cap); + + void *priv; +}; + +int gsr_capture_start(gsr_capture *cap); +void gsr_capture_stop(gsr_capture *cap); +int gsr_capture_capture(gsr_capture *cap, AVFrame *frame); +/* Calls |gsr_capture_stop| as well */ +void gsr_capture_destroy(gsr_capture *cap); + +#endif /* GSR_CAPTURE_CAPTURE_H */ diff --git a/include/capture/nvfbc.h b/include/capture/nvfbc.h new file mode 100644 index 0000000..b749b87 --- /dev/null +++ b/include/capture/nvfbc.h @@ -0,0 +1,17 @@ +#ifndef GSR_CAPTURE_NVFBC_H +#define GSR_CAPTURE_NVFBC_H + +#include "capture.h" +#include "../vec2.h" + +typedef struct { + const char *display_to_capture; /* if this is "screen", then the entire x11 screen is captured (all displays) */ + int fps; + vec2i pos; + vec2i size; + bool direct_capture; /* temporary disabled */ +} gsr_capture_nvfbc_params; + +gsr_capture* gsr_capture_nvfbc_create(const gsr_capture_nvfbc_params *params); + +#endif /* GSR_CAPTURE_NVFBC_H */ diff --git a/include/vec2.h b/include/vec2.h new file mode 100644 index 0000000..d1957ef --- /dev/null +++ b/include/vec2.h @@ -0,0 +1,8 @@ +#ifndef VEC2_H +#define VEC2_H + +typedef struct { + int x, y; +} vec2i; + +#endif /* VEC2_H */
\ No newline at end of file diff --git a/install_ubuntu.sh b/install_ubuntu.sh index 6a3bb4a..f414f50 100755 --- a/install_ubuntu.sh +++ b/install_ubuntu.sh @@ -8,7 +8,7 @@ cd "$script_dir" set -e apt-get -y install build-essential\ libswresample-dev libavformat-dev libavcodec-dev libavutil-dev\ - libgl-dev libx11-dev libxcomposite-dev\ + libgl-dev libx11-dev libxcomposite-dev libxrandr-dev\ libpulse-dev ./install.sh diff --git a/project.conf b/project.conf index 8ac9d98..94da839 100644 --- a/project.conf +++ b/project.conf @@ -10,5 +10,6 @@ libavformat = ">=58" libavutil = ">=56.2" x11 = ">=1" xcomposite = ">=0.2" +xrandr = ">=1" libpulse = ">=13" libswresample = ">=3" diff --git a/src/capture/capture.c b/src/capture/capture.c new file mode 100644 index 0000000..9755d6a --- /dev/null +++ b/src/capture/capture.c @@ -0,0 +1,17 @@ +#include "../../include/capture/capture.h" + +int gsr_capture_start(gsr_capture *cap) { + return cap->start(cap); +} + +void gsr_capture_stop(gsr_capture *cap) { + cap->stop(cap); +} + +int gsr_capture_capture(gsr_capture *cap, AVFrame *frame) { + return cap->capture(cap, frame); +} + +void gsr_capture_destroy(gsr_capture *cap) { + cap->destroy(cap); +} diff --git a/src/capture/nvfbc.c b/src/capture/nvfbc.c new file mode 100644 index 0000000..a2648ef --- /dev/null +++ b/src/capture/nvfbc.c @@ -0,0 +1,332 @@ +#include "../../include/capture/nvfbc.h" +#include "../../external/NvFBC.h" +#include <dlfcn.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <libavutil/frame.h> + +typedef struct { + gsr_capture_nvfbc_params params; + void *library; + + NVFBC_SESSION_HANDLE nv_fbc_handle; + PNVFBCCREATEINSTANCE nv_fbc_create_instance; + NVFBC_API_FUNCTION_LIST nv_fbc_function_list; + bool fbc_handle_created; +} gsr_capture_nvfbc; + +#if defined(_WIN64) || defined(__LP64__) +typedef unsigned long long CUdeviceptr_v2; +#else +typedef unsigned int CUdeviceptr_v2; +#endif +typedef CUdeviceptr_v2 CUdeviceptr; + +static int max_int(int a, int b) { + return a > b ? a : b; +} + +/* Returns 0 on failure */ +static uint32_t get_output_id_from_display_name(NVFBC_RANDR_OUTPUT_INFO *outputs, uint32_t num_outputs, const char *display_name) { + if(!outputs) + return 0; + + for(uint32_t i = 0; i < num_outputs; ++i) { + if(strcmp(outputs[i].name, display_name) == 0) + return outputs[i].dwId; + } + + return 0; +} + +/* TODO: Test with optimus and open kernel modules */ +static bool driver_supports_direct_capture_cursor() { + FILE *f = fopen("/proc/driver/nvidia/version", "rb"); + if(!f) + return false; + + char buffer[2048]; + size_t bytes_read = fread(buffer, 1, sizeof(buffer) - 1, f); + buffer[bytes_read] = '\0'; + + bool supports_cursor = false; + const char *p = strstr(buffer, "Kernel Module"); + if(p) { + p += 13; + int driver_major_version = 0, driver_minor_version = 0; + if(sscanf(p, "%d.%d", &driver_major_version, &driver_minor_version) == 2) { + if(driver_major_version > 515 || (driver_major_version == 515 && driver_minor_version >= 57)) + supports_cursor = true; + } + } + + fclose(f); + return supports_cursor; +} + +static bool gsr_capture_nvfbc_load_library(gsr_capture *cap) { + gsr_capture_nvfbc *cap_nvfbc = cap->priv; + + dlerror(); /* clear */ + void *lib = dlopen("libnvidia-fbc.so.1", RTLD_LAZY); + if(!lib) { + fprintf(stderr, "gsr error: failed to load libnvidia-fbc.so.1, error: %s\n", dlerror()); + return false; + } + + cap_nvfbc->nv_fbc_create_instance = (PNVFBCCREATEINSTANCE)dlsym(lib, "NvFBCCreateInstance"); + if(!cap_nvfbc->nv_fbc_create_instance) { + fprintf(stderr, "gsr error: unable to resolve symbol 'NvFBCCreateInstance'\n"); + dlclose(lib); + return false; + } + + memset(&cap_nvfbc->nv_fbc_function_list, 0, sizeof(cap_nvfbc->nv_fbc_function_list)); + cap_nvfbc->nv_fbc_function_list.dwVersion = NVFBC_VERSION; + NVFBCSTATUS status = cap_nvfbc->nv_fbc_create_instance(&cap_nvfbc->nv_fbc_function_list); + if(status != NVFBC_SUCCESS) { + fprintf(stderr, "gsr error: failed to create NvFBC instance (status: %d)\n", status); + dlclose(lib); + return false; + } + + cap_nvfbc->library = lib; + return true; +} + +static int gsr_capture_nvfbc_start(gsr_capture *cap) { + gsr_capture_nvfbc *cap_nvfbc = cap->priv; + const uint32_t x = max_int(cap_nvfbc->params.pos.x, 0); + const uint32_t y = max_int(cap_nvfbc->params.pos.y, 0); + const uint32_t width = max_int(cap_nvfbc->params.size.x, 0); + const uint32_t height = max_int(cap_nvfbc->params.size.y, 0); + + if(!cap_nvfbc->library || !cap_nvfbc->params.display_to_capture || cap_nvfbc->fbc_handle_created) + return -1; + + const bool capture_region = (x > 0 || y > 0 || width > 0 || height > 0); + + NVFBCSTATUS status; + NVFBC_TRACKING_TYPE tracking_type; + bool capture_session_created = false; + uint32_t output_id = 0; + cap_nvfbc->fbc_handle_created = false; + + NVFBC_CREATE_HANDLE_PARAMS create_params; + memset(&create_params, 0, sizeof(create_params)); + create_params.dwVersion = NVFBC_CREATE_HANDLE_PARAMS_VER; + + status = cap_nvfbc->nv_fbc_function_list.nvFBCCreateHandle(&cap_nvfbc->nv_fbc_handle, &create_params); + if(status != NVFBC_SUCCESS) { + // Reverse engineering for interoperability + const uint8_t enable_key[] = { 0xac, 0x10, 0xc9, 0x2e, 0xa5, 0xe6, 0x87, 0x4f, 0x8f, 0x4b, 0xf4, 0x61, 0xf8, 0x56, 0x27, 0xe9 }; + create_params.privateData = enable_key; + create_params.privateDataSize = 16; + + status = cap_nvfbc->nv_fbc_function_list.nvFBCCreateHandle(&cap_nvfbc->nv_fbc_handle, &create_params); + if(status != NVFBC_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: %s\n", cap_nvfbc->nv_fbc_function_list.nvFBCGetLastErrorStr(cap_nvfbc->nv_fbc_handle)); + return -1; + } + } + cap_nvfbc->fbc_handle_created = true; + + NVFBC_GET_STATUS_PARAMS status_params; + memset(&status_params, 0, sizeof(status_params)); + status_params.dwVersion = NVFBC_GET_STATUS_PARAMS_VER; + + status = cap_nvfbc->nv_fbc_function_list.nvFBCGetStatus(cap_nvfbc->nv_fbc_handle, &status_params); + if(status != NVFBC_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: %s\n", cap_nvfbc->nv_fbc_function_list.nvFBCGetLastErrorStr(cap_nvfbc->nv_fbc_handle)); + goto error_cleanup; + } + + if(status_params.bCanCreateNow == NVFBC_FALSE) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: it's not possible to create a capture session on this system\n"); + goto error_cleanup; + } + + tracking_type = strcmp(cap_nvfbc->params.display_to_capture, "screen") == 0 ? NVFBC_TRACKING_SCREEN : NVFBC_TRACKING_OUTPUT; + if(tracking_type == NVFBC_TRACKING_OUTPUT) { + if(!status_params.bXRandRAvailable) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: the xrandr extension is not available\n"); + goto error_cleanup; + } + + if(status_params.bInModeset) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: the x server is in modeset, unable to record\n"); + goto error_cleanup; + } + + output_id = get_output_id_from_display_name(status_params.outputs, status_params.dwOutputNum, cap_nvfbc->params.display_to_capture); + if(output_id == 0) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: display '%s' not found\n", cap_nvfbc->params.display_to_capture); + goto error_cleanup; + } + } + + NVFBC_CREATE_CAPTURE_SESSION_PARAMS create_capture_params; + memset(&create_capture_params, 0, sizeof(create_capture_params)); + create_capture_params.dwVersion = NVFBC_CREATE_CAPTURE_SESSION_PARAMS_VER; + create_capture_params.eCaptureType = NVFBC_CAPTURE_SHARED_CUDA; + create_capture_params.bWithCursor = (!cap_nvfbc->params.direct_capture || driver_supports_direct_capture_cursor()) ? NVFBC_TRUE : NVFBC_FALSE; + if(capture_region) + create_capture_params.captureBox = (NVFBC_BOX){ x, y, width, height }; + create_capture_params.eTrackingType = tracking_type; + create_capture_params.dwSamplingRateMs = 1000u / (uint32_t)cap_nvfbc->params.fps; + create_capture_params.bAllowDirectCapture = cap_nvfbc->params.direct_capture ? NVFBC_TRUE : NVFBC_FALSE; + create_capture_params.bPushModel = cap_nvfbc->params.direct_capture ? NVFBC_TRUE : NVFBC_FALSE; + if(tracking_type == NVFBC_TRACKING_OUTPUT) + create_capture_params.dwOutputId = output_id; + + status = cap_nvfbc->nv_fbc_function_list.nvFBCCreateCaptureSession(cap_nvfbc->nv_fbc_handle, &create_capture_params); + if(status != NVFBC_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: %s\n", cap_nvfbc->nv_fbc_function_list.nvFBCGetLastErrorStr(cap_nvfbc->nv_fbc_handle)); + goto error_cleanup; + } + capture_session_created = true; + + NVFBC_TOCUDA_SETUP_PARAMS setup_params; + memset(&setup_params, 0, sizeof(setup_params)); + setup_params.dwVersion = NVFBC_TOCUDA_SETUP_PARAMS_VER; + setup_params.eBufferFormat = NVFBC_BUFFER_FORMAT_BGRA; + + status = cap_nvfbc->nv_fbc_function_list.nvFBCToCudaSetUp(cap_nvfbc->nv_fbc_handle, &setup_params); + if(status != NVFBC_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_start failed: %s\n", cap_nvfbc->nv_fbc_function_list.nvFBCGetLastErrorStr(cap_nvfbc->nv_fbc_handle)); + goto error_cleanup; + } + + return 0; + + error_cleanup: + if(cap_nvfbc->fbc_handle_created) { + if(capture_session_created) { + NVFBC_DESTROY_CAPTURE_SESSION_PARAMS destroy_capture_params; + memset(&destroy_capture_params, 0, sizeof(destroy_capture_params)); + destroy_capture_params.dwVersion = NVFBC_DESTROY_CAPTURE_SESSION_PARAMS_VER; + cap_nvfbc->nv_fbc_function_list.nvFBCDestroyCaptureSession(cap_nvfbc->nv_fbc_handle, &destroy_capture_params); + } + + NVFBC_DESTROY_HANDLE_PARAMS destroy_params; + memset(&destroy_params, 0, sizeof(destroy_params)); + destroy_params.dwVersion = NVFBC_DESTROY_HANDLE_PARAMS_VER; + cap_nvfbc->nv_fbc_function_list.nvFBCDestroyHandle(cap_nvfbc->nv_fbc_handle, &destroy_params); + cap_nvfbc->fbc_handle_created = false; + } + output_id = 0; + return -1; +} + +static void gsr_capture_nvfbc_stop(gsr_capture *cap) { + gsr_capture_nvfbc *cap_nvfbc = cap->priv; + + /* Intentionally ignore failure on destroy */ + if(!cap_nvfbc->nv_fbc_handle) + return; + + NVFBC_DESTROY_CAPTURE_SESSION_PARAMS destroy_capture_params; + memset(&destroy_capture_params, 0, sizeof(destroy_capture_params)); + destroy_capture_params.dwVersion = NVFBC_DESTROY_CAPTURE_SESSION_PARAMS_VER; + cap_nvfbc->nv_fbc_function_list.nvFBCDestroyCaptureSession(cap_nvfbc->nv_fbc_handle, &destroy_capture_params); + + NVFBC_DESTROY_HANDLE_PARAMS destroy_params; + memset(&destroy_params, 0, sizeof(destroy_params)); + destroy_params.dwVersion = NVFBC_DESTROY_HANDLE_PARAMS_VER; + cap_nvfbc->nv_fbc_function_list.nvFBCDestroyHandle(cap_nvfbc->nv_fbc_handle, &destroy_params); + + cap_nvfbc->nv_fbc_handle = 0; +} + +static int gsr_capture_nvfbc_capture(gsr_capture *cap, AVFrame *frame) { + gsr_capture_nvfbc *cap_nvfbc = cap->priv; + if(!cap_nvfbc->library || !cap_nvfbc->fbc_handle_created) + return -1; + + CUdeviceptr cu_device_ptr = 0; + + NVFBC_FRAME_GRAB_INFO frame_info; + memset(&frame_info, 0, sizeof(frame_info)); + + NVFBC_TOCUDA_GRAB_FRAME_PARAMS grab_params; + memset(&grab_params, 0, sizeof(grab_params)); + grab_params.dwVersion = NVFBC_TOCUDA_GRAB_FRAME_PARAMS_VER; + grab_params.dwFlags = NVFBC_TOCUDA_GRAB_FLAGS_NOWAIT;/* | NVFBC_TOCUDA_GRAB_FLAGS_FORCE_REFRESH;*/ + grab_params.pFrameGrabInfo = &frame_info; + grab_params.pCUDADeviceBuffer = &cu_device_ptr; + + NVFBCSTATUS status = cap_nvfbc->nv_fbc_function_list.nvFBCToCudaGrabFrame(cap_nvfbc->nv_fbc_handle, &grab_params); + if(status != NVFBC_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_capture failed: %s\n", cap_nvfbc->nv_fbc_function_list.nvFBCGetLastErrorStr(cap_nvfbc->nv_fbc_handle)); + return -1; + } + + /* + *byte_size = frame_info.dwByteSize; + + TODO: Check bIsNewFrame + TODO: Check dwWidth and dwHeight and update size in video output in ffmpeg. This can happen when xrandr is used to change monitor resolution + */ + + frame->data[0] = (uint8_t*)cu_device_ptr; + frame->linesize[0] = frame->width * 4; + return 0; +} + +static void gsr_capture_nvfbc_destroy(gsr_capture *cap) { + if(cap) { + gsr_capture_nvfbc *cap_nvfbc = cap->priv; + gsr_capture_nvfbc_stop(cap); + if(cap_nvfbc) { + dlclose(cap_nvfbc->library); + free((void*)cap_nvfbc->params.display_to_capture); + free(cap->priv); + cap->priv = NULL; + } + free(cap); + } +} + +gsr_capture* gsr_capture_nvfbc_create(const gsr_capture_nvfbc_params *params) { + if(!params) { + fprintf(stderr, "gsr error: gsr_capture_nvfbc_create params is NULL\n"); + return NULL; + } + + gsr_capture *cap = calloc(1, sizeof(gsr_capture)); + if(!cap) + return NULL; + + gsr_capture_nvfbc *cap_nvfbc = calloc(1, sizeof(gsr_capture_nvfbc)); + if(!cap_nvfbc) { + free(cap); + return NULL; + } + + const char *display_to_capture = strdup(params->display_to_capture); + if(!display_to_capture) { + free(cap); + free(cap_nvfbc); + return NULL; + } + + cap_nvfbc->params = *params; + cap_nvfbc->params.display_to_capture = display_to_capture; + cap_nvfbc->params.fps = max_int(cap_nvfbc->params.fps, 1); + + *cap = (gsr_capture) { + .start = gsr_capture_nvfbc_start, + .stop = gsr_capture_nvfbc_stop, + .capture = gsr_capture_nvfbc_capture, + .destroy = gsr_capture_nvfbc_destroy, + .priv = cap_nvfbc + }; + + if(!gsr_capture_nvfbc_load_library(cap)) { + gsr_capture_nvfbc_destroy(cap); + return NULL; + } + + return cap; +} diff --git a/src/main.cpp b/src/main.cpp index b449666..8e80797 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -15,6 +15,10 @@ along with this program. If not, see <https://www.gnu.org/licenses/>. */ +extern "C" { +#include "../include/capture/nvfbc.h" +} + #include <assert.h> #include <stdio.h> #include <stdlib.h> @@ -31,11 +35,11 @@ #include <fcntl.h> #include "../include/sound.hpp" -#include "../include/NvFBCLibrary.hpp" #include "../include/CudaLibrary.hpp" #include "../include/GlLibrary.hpp" #include <X11/extensions/Xcomposite.h> +#include <X11/extensions/Xrandr.h> //#include <X11/Xatom.h> extern "C" { @@ -66,6 +70,75 @@ static thread_local char av_error_buffer[AV_ERROR_MAX_STRING_SIZE]; static Cuda cuda; static GlLibrary gl; +static const XRRModeInfo* get_mode_info(const XRRScreenResources *sr, RRMode id) { + for(int i = 0; i < sr->nmode; ++i) { + if(sr->modes[i].id == id) + return &sr->modes[i]; + } + return nullptr; +} + +typedef void (*active_monitor_callback)(const XRROutputInfo *output_info, const XRRCrtcInfo *crt_info, const XRRModeInfo *mode_info, void *userdata); + +static void for_each_active_monitor_output(Display *display, active_monitor_callback callback, void *userdata) { + XRRScreenResources *screen_res = XRRGetScreenResources(display, DefaultRootWindow(display)); + if(!screen_res) + return; + + for(int i = 0; i < screen_res->noutput; ++i) { + XRROutputInfo *out_info = XRRGetOutputInfo(display, screen_res, screen_res->outputs[i]); + if(out_info && out_info->crtc && out_info->connection == RR_Connected) { + XRRCrtcInfo *crt_info = XRRGetCrtcInfo(display, screen_res, out_info->crtc); + if(crt_info && crt_info->mode) { + const XRRModeInfo *mode_info = get_mode_info(screen_res, crt_info->mode); + if(mode_info) + callback(out_info, crt_info, mode_info, userdata); + } + if(crt_info) + XRRFreeCrtcInfo(crt_info); + } + if(out_info) + XRRFreeOutputInfo(out_info); + } + + XRRFreeScreenResources(screen_res); +} + +typedef struct { + vec2i pos; + vec2i size; +} gsr_monitor; + +typedef struct { + const char *name; + int name_len; + gsr_monitor *monitor; + bool found_monitor; +} get_monitor_by_name_userdata; + +static void get_monitor_by_name_callback(const XRROutputInfo *output_info, const XRRCrtcInfo *crt_info, const XRRModeInfo *mode_info, void *userdata) { + get_monitor_by_name_userdata *data = (get_monitor_by_name_userdata*)userdata; + if(!data->found_monitor && data->name_len == output_info->nameLen && memcmp(data->name, output_info->name, data->name_len) == 0) { + data->monitor->pos = { crt_info->x, crt_info->y }; + data->monitor->size = { (int)crt_info->width, (int)crt_info->height }; + data->found_monitor = true; + } +} + +static bool get_monitor_by_name(Display *display, const char *name, gsr_monitor *monitor) { + get_monitor_by_name_userdata userdata; + userdata.name = name; + userdata.name_len = strlen(name); + userdata.monitor = monitor; + userdata.found_monitor = false; + for_each_active_monitor_output(display, get_monitor_by_name_callback, &userdata); + return userdata.found_monitor; +} + +static void monitor_output_callback_print(const XRROutputInfo *output_info, const XRRCrtcInfo *crt_info, const XRRModeInfo *mode_info, void *userdata) { + fprintf(stderr, " \"%.*s\" (%dx%d+%d+%d)\n", output_info->nameLen, output_info->name, (int)crt_info->width, (int)crt_info->height, crt_info->x, crt_info->y); +} + static char* av_error_to_string(int err) { if(av_strerror(err, av_error_buffer, sizeof(av_error_buffer)) < 0) strcpy(av_error_buffer, "Unknown error"); @@ -1216,7 +1289,7 @@ int main(int argc, char **argv) { } if(!match) { - fprintf(stderr, "Error: Audio input device '%s' is not a valid audio device. Expected one of:\n", request_audio_input.name.c_str()); + fprintf(stderr, "Error: Audio input device '%s' is not a valid audio device, expected one of:\n", request_audio_input.name.c_str()); for(const auto &existing_audio_input : audio_inputs) { fprintf(stderr, " %s\n", existing_audio_input.name.c_str()); } @@ -1318,6 +1391,15 @@ int main(int argc, char **argv) { return 1; } + Display *dpy = XOpenDisplay(nullptr); + if (!dpy) { + fprintf(stderr, "Error: Failed to open display\n"); + return 1; + } + + XSetErrorHandler(x11_error_handler); + XSetIOErrorHandler(x11_io_error_handler); + const char *record_area = args["-s"].value(); uint32_t window_width = 0; @@ -1325,7 +1407,7 @@ int main(int argc, char **argv) { int window_x = 0; int window_y = 0; - NvFBCLibrary nv_fbc_library; + gsr_capture *capture = nullptr; const char *window_str = args["-w"].value(); Window src_window_id = None; @@ -1335,9 +1417,6 @@ int main(int argc, char **argv) { usage(); } - if(!nv_fbc_library.load()) - return 1; - const char *capture_target = window_str; bool direct_capture = strcmp(window_str, "screen-direct") == 0; if(direct_capture) { @@ -1347,7 +1426,36 @@ int main(int argc, char **argv) { fprintf(stderr, "Warning: screen-direct has temporary been disabled as it causes stuttering. This is likely a NvFBC bug. Falling back to \"screen\".\n"); } - if(!nv_fbc_library.create(capture_target, fps, &window_width, &window_height, region_x, region_y, region_width, region_height, direct_capture)) + gsr_capture_nvfbc_params nvfbc_params; + nvfbc_params.display_to_capture = capture_target; + nvfbc_params.fps = fps; + nvfbc_params.pos = { (int)region_x, (int)region_y }; + nvfbc_params.size = { (int)region_width, (int)region_height }; + nvfbc_params.direct_capture = direct_capture; + capture = gsr_capture_nvfbc_create(&nvfbc_params); + if(!capture) + return 1; + + // TODO: Set window_width and window_height to the nvfbc blalba + if(strcmp(capture_target, "screen") == 0) { + window_width = WidthOfScreen(DefaultScreenOfDisplay(dpy)); + window_height = HeightOfScreen(DefaultScreenOfDisplay(dpy)); + } else { + gsr_monitor gmon; + if(!get_monitor_by_name(dpy, capture_target, &gmon)) { + fprintf(stderr, "gsr error: display \"%s\" not found, expected one of:\n", capture_target); + fprintf(stderr, " \"screen\" (%dx%d+%d+%d)\n", WidthOfScreen(DefaultScreenOfDisplay(dpy)), HeightOfScreen(DefaultScreenOfDisplay(dpy)), 0, 0); + fprintf(stderr, " \"screen-direct\" (%dx%d+%d+%d)\n", WidthOfScreen(DefaultScreenOfDisplay(dpy)), HeightOfScreen(DefaultScreenOfDisplay(dpy)), 0, 0); + for_each_active_monitor_output(dpy, monitor_output_callback_print, NULL); + return 1; + } + + window_width = gmon.size.x; + window_height = gmon.size.y; + } + + // TODO: Move down + if(gsr_capture_start(capture) != 0) return 1; } else { errno = 0; @@ -1387,15 +1495,6 @@ int main(int argc, char **argv) { const double target_fps = 1.0 / (double)fps; - Display *dpy = XOpenDisplay(nullptr); - if (!dpy) { - fprintf(stderr, "Error: Failed to open display\n"); - return 1; - } - - XSetErrorHandler(x11_error_handler); - XSetIOErrorHandler(x11_io_error_handler); - WindowPixmap window_pixmap; Window window = None; if(src_window_id) { @@ -1993,13 +2092,7 @@ int main(int argc, char **argv) { frame_captured = true; } else { - // TODO: Check when src_cu_device_ptr changes and re-register resource - frame->linesize[0] = frame->width * 4; - - uint32_t byte_size = 0; - CUdeviceptr src_cu_device_ptr = 0; - frame_captured = nv_fbc_library.capture(&src_cu_device_ptr, &byte_size); - frame->data[0] = (uint8_t*)src_cu_device_ptr; + gsr_capture_capture(capture, frame); } // res = cuda.cuCtxPopCurrent_v2(&old_ctx); } @@ -2059,6 +2152,9 @@ int main(int argc, char **argv) { if(replay_buffer_size_secs == -1 && !(output_format->flags & AVFMT_NOFILE)) avio_close(av_format_context->pb); + if(capture) + gsr_capture_destroy(capture); + if(dpy) XCloseDisplay(dpy); |