diff options
Diffstat (limited to 'src/capture/capture.c')
| -rw-r--r-- | src/capture/capture.c | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/src/capture/capture.c b/src/capture/capture.c new file mode 100644 index 0000000..cec0b0d --- /dev/null +++ b/src/capture/capture.c @@ -0,0 +1,400 @@ +#include "../../include/capture/capture.h" +#include "../../include/egl.h" +#include "../../include/cuda.h" +#include "../../include/utils.h" +#include <stdio.h> +#include <stdint.h> +#include <va/va.h> +#include <va/va_drmcommon.h> +#include <libavutil/frame.h> +#include <libavutil/hwcontext_vaapi.h> +#include <libavutil/hwcontext_cuda.h> +#include <libavcodec/avcodec.h> + +#define FOURCC_NV12 842094158 +#define FOURCC_P010 808530000 + +int gsr_capture_start(gsr_capture *cap, AVCodecContext *video_codec_context, AVFrame *frame) { + if(cap->started) + return -1; + + int res = cap->start(cap, video_codec_context, frame); + if(res == 0) + cap->started = true; + + return res; +} + +void gsr_capture_tick(gsr_capture *cap, AVCodecContext *video_codec_context) { + if(!cap->started) { + fprintf(stderr, "gsr error: gsp_capture_tick failed: the gsr capture has not been started\n"); + return; + } + + if(cap->tick) + cap->tick(cap, video_codec_context); +} + +bool gsr_capture_should_stop(gsr_capture *cap, bool *err) { + if(!cap->started) { + fprintf(stderr, "gsr error: gsr_capture_should_stop failed: the gsr capture has not been started\n"); + return false; + } + + if(!cap->should_stop) + return false; + + return cap->should_stop(cap, err); +} + +int gsr_capture_capture(gsr_capture *cap, AVFrame *frame) { + if(!cap->started) { + fprintf(stderr, "gsr error: gsr_capture_capture failed: the gsr capture has not been started\n"); + return -1; + } + return cap->capture(cap, frame); +} + +void gsr_capture_end(gsr_capture *cap, AVFrame *frame) { + if(!cap->started) { + fprintf(stderr, "gsr error: gsr_capture_end failed: the gsr capture has not been started\n"); + return; + } + + if(!cap->capture_end) + return; + + cap->capture_end(cap, frame); +} + +void gsr_capture_destroy(gsr_capture *cap, AVCodecContext *video_codec_context) { + cap->destroy(cap, video_codec_context); +} + +static uint32_t fourcc(uint32_t a, uint32_t b, uint32_t c, uint32_t d) { + return (d << 24) | (c << 16) | (b << 8) | a; +} + +bool gsr_capture_base_setup_vaapi_textures(gsr_capture_base *self, AVFrame *frame, VADisplay va_dpy, VADRMPRIMESurfaceDescriptor *prime, gsr_color_range color_range) { + const int res = av_hwframe_get_buffer(self->video_codec_context->hw_frames_ctx, frame, 0); + if(res < 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_vaapi_textures: av_hwframe_get_buffer failed: %d\n", res); + return false; + } + + VASurfaceID target_surface_id = (uintptr_t)frame->data[3]; + + VAStatus va_status = vaExportSurfaceHandle(va_dpy, target_surface_id, VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2, VA_EXPORT_SURFACE_WRITE_ONLY | VA_EXPORT_SURFACE_SEPARATE_LAYERS, prime); + if(va_status != VA_STATUS_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_vaapi_textures: vaExportSurfaceHandle failed, error: %d\n", va_status); + return false; + } + vaSyncSurface(va_dpy, target_surface_id); + + self->egl->glGenTextures(1, &self->input_texture); + self->egl->glBindTexture(GL_TEXTURE_2D, self->input_texture); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + self->egl->glBindTexture(GL_TEXTURE_2D, 0); + + self->egl->glGenTextures(1, &self->cursor_texture); + self->egl->glBindTexture(GL_TEXTURE_2D, self->cursor_texture); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + self->egl->glBindTexture(GL_TEXTURE_2D, 0); + + const uint32_t formats_nv12[2] = { fourcc('R', '8', ' ', ' '), fourcc('G', 'R', '8', '8') }; + const uint32_t formats_p010[2] = { fourcc('R', '1', '6', ' '), fourcc('G', 'R', '3', '2') }; + + if(prime->fourcc == FOURCC_NV12 || prime->fourcc == FOURCC_P010) { + const uint32_t *formats = prime->fourcc == FOURCC_NV12 ? formats_nv12 : formats_p010; + const int div[2] = {1, 2}; // divide UV texture size by 2 because chroma is half size + + self->egl->glGenTextures(2, self->target_textures); + for(int i = 0; i < 2; ++i) { + const int layer = i; + const int plane = 0; + + //const uint64_t modifier = prime->objects[prime->layers[layer].object_index[plane]].drm_format_modifier; + + const intptr_t img_attr[] = { + EGL_LINUX_DRM_FOURCC_EXT, formats[i], + EGL_WIDTH, prime->width / div[i], + EGL_HEIGHT, prime->height / div[i], + EGL_DMA_BUF_PLANE0_FD_EXT, prime->objects[prime->layers[layer].object_index[plane]].fd, + EGL_DMA_BUF_PLANE0_OFFSET_EXT, prime->layers[layer].offset[plane], + EGL_DMA_BUF_PLANE0_PITCH_EXT, prime->layers[layer].pitch[plane], + // TODO: + //EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT, modifier & 0xFFFFFFFFULL, + //EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, modifier >> 32ULL, + EGL_NONE + }; + + while(self->egl->eglGetError() != EGL_SUCCESS){} + EGLImage image = self->egl->eglCreateImage(self->egl->egl_display, 0, EGL_LINUX_DMA_BUF_EXT, NULL, img_attr); + if(!image) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_vaapi_textures: failed to create egl image from drm fd for output drm fd, error: %d\n", self->egl->eglGetError()); + return false; + } + + self->egl->glBindTexture(GL_TEXTURE_2D, self->target_textures[i]); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + while(self->egl->glGetError()) {} + while(self->egl->eglGetError() != EGL_SUCCESS){} + self->egl->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image); + if(self->egl->glGetError() != 0 || self->egl->eglGetError() != EGL_SUCCESS) { + // TODO: Get the error properly + fprintf(stderr, "gsr error: gsr_capture_kms_setup_vaapi_textures: failed to bind egl image to gl texture, error: %d\n", self->egl->eglGetError()); + self->egl->eglDestroyImage(self->egl->egl_display, image); + self->egl->glBindTexture(GL_TEXTURE_2D, 0); + return false; + } + + self->egl->eglDestroyImage(self->egl->egl_display, image); + self->egl->glBindTexture(GL_TEXTURE_2D, 0); + } + + gsr_color_conversion_params color_conversion_params = {0}; + color_conversion_params.color_range = color_range; + color_conversion_params.egl = self->egl; + color_conversion_params.source_color = GSR_SOURCE_COLOR_RGB; + if(prime->fourcc == FOURCC_NV12) + color_conversion_params.destination_color = GSR_DESTINATION_COLOR_NV12; + else + color_conversion_params.destination_color = GSR_DESTINATION_COLOR_P010; + + color_conversion_params.destination_textures[0] = self->target_textures[0]; + color_conversion_params.destination_textures[1] = self->target_textures[1]; + color_conversion_params.num_destination_textures = 2; + + if(gsr_color_conversion_init(&self->color_conversion, &color_conversion_params) != 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_vaapi_textures: failed to create color conversion\n"); + return false; + } + + return true; + } else { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_vaapi_textures: unexpected fourcc %u for output drm fd, expected nv12 or p010\n", prime->fourcc); + return false; + } +} + +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; +} + +bool gsr_capture_base_setup_cuda_textures(gsr_capture_base *self, AVFrame *frame, gsr_cuda_context *cuda_context, gsr_color_range color_range, gsr_source_color source_color, bool hdr) { + // TODO: + const int res = av_hwframe_get_buffer(self->video_codec_context->hw_frames_ctx, frame, 0); + if(res < 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_cuda_textures: av_hwframe_get_buffer failed: %d\n", res); + return false; + } + + self->egl->glGenTextures(1, &self->input_texture); + self->egl->glBindTexture(GL_TEXTURE_2D, self->input_texture); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + self->egl->glBindTexture(GL_TEXTURE_2D, 0); + + self->egl->glGenTextures(1, &self->cursor_texture); + self->egl->glBindTexture(GL_TEXTURE_EXTERNAL_OES, self->cursor_texture); + self->egl->glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + self->egl->glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + self->egl->glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + self->egl->glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0); + + 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->egl, self->video_codec_context->width / div[i], self->video_codec_context->height / div[i], !hdr ? internal_formats_nv12[i] : internal_formats_p010[i], formats[i]); + if(self->target_textures[i] == 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_cuda_textures: failed to create opengl texture\n"); + return false; + } + + if(!cuda_register_opengl_texture(cuda_context->cuda, &cuda_context->cuda_graphics_resources[i], &cuda_context->mapped_arrays[i], self->target_textures[i])) { + return false; + } + } + + gsr_color_conversion_params color_conversion_params = {0}; + color_conversion_params.color_range = color_range; + color_conversion_params.egl = self->egl; + color_conversion_params.source_color = source_color; + if(!hdr) + color_conversion_params.destination_color = GSR_DESTINATION_COLOR_NV12; + else + color_conversion_params.destination_color = GSR_DESTINATION_COLOR_P010; + + color_conversion_params.destination_textures[0] = self->target_textures[0]; + color_conversion_params.destination_textures[1] = self->target_textures[1]; + color_conversion_params.num_destination_textures = 2; + color_conversion_params.load_external_image_shader = true; + + if(gsr_color_conversion_init(&self->color_conversion, &color_conversion_params) != 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_setup_cuda_textures: failed to create color conversion\n"); + return false; + } + + return true; +} + +void gsr_capture_base_stop(gsr_capture_base *self) { + gsr_color_conversion_deinit(&self->color_conversion); + + if(self->egl->egl_context) { + if(self->input_texture) { + self->egl->glDeleteTextures(1, &self->input_texture); + self->input_texture = 0; + } + + if(self->cursor_texture) { + self->egl->glDeleteTextures(1, &self->cursor_texture); + self->cursor_texture = 0; + } + + self->egl->glDeleteTextures(2, self->target_textures); + self->target_textures[0] = 0; + self->target_textures[1] = 0; + } + + if(self->video_codec_context->hw_device_ctx) + av_buffer_unref(&self->video_codec_context->hw_device_ctx); + if(self->video_codec_context->hw_frames_ctx) + av_buffer_unref(&self->video_codec_context->hw_frames_ctx); +} + +bool drm_create_codec_context(const char *card_path, AVCodecContext *video_codec_context, int width, int height, bool hdr, VADisplay *va_dpy) { + char render_path[128]; + if(!gsr_card_path_get_render_path(card_path, render_path)) { + fprintf(stderr, "gsr error: failed to get /dev/dri/renderDXXX file from %s\n", card_path); + return false; + } + + AVBufferRef *device_ctx; + if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, render_path, NULL, 0) < 0) { + fprintf(stderr, "Error: Failed to create hardware device context\n"); + return false; + } + + AVBufferRef *frame_context = av_hwframe_ctx_alloc(device_ctx); + if(!frame_context) { + fprintf(stderr, "Error: Failed to create hwframe context\n"); + av_buffer_unref(&device_ctx); + return false; + } + + AVHWFramesContext *hw_frame_context = + (AVHWFramesContext *)frame_context->data; + hw_frame_context->width = width; + hw_frame_context->height = height; + hw_frame_context->sw_format = hdr ? AV_PIX_FMT_P010LE : AV_PIX_FMT_NV12; + hw_frame_context->format = video_codec_context->pix_fmt; + hw_frame_context->device_ref = device_ctx; + hw_frame_context->device_ctx = (AVHWDeviceContext*)device_ctx->data; + + //hw_frame_context->initial_pool_size = 20; + + AVVAAPIDeviceContext *vactx =((AVHWDeviceContext*)device_ctx->data)->hwctx; + *va_dpy = vactx->display; + + if (av_hwframe_ctx_init(frame_context) < 0) { + fprintf(stderr, "Error: Failed to initialize hardware frame context " + "(note: ffmpeg version needs to be > 4.0)\n"); + av_buffer_unref(&device_ctx); + //av_buffer_unref(&frame_context); + return false; + } + + video_codec_context->hw_device_ctx = av_buffer_ref(device_ctx); + video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context); + return true; +} + +bool cuda_create_codec_context(CUcontext cu_ctx, AVCodecContext *video_codec_context, int width, int height, bool hdr, CUstream *cuda_stream) { + AVBufferRef *device_ctx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_CUDA); + if(!device_ctx) { + fprintf(stderr, "gsr error: cuda_create_codec_context failed: failed to create hardware device context\n"); + return false; + } + + AVHWDeviceContext *hw_device_context = (AVHWDeviceContext*)device_ctx->data; + AVCUDADeviceContext *cuda_device_context = (AVCUDADeviceContext*)hw_device_context->hwctx; + cuda_device_context->cuda_ctx = cu_ctx; + if(av_hwdevice_ctx_init(device_ctx) < 0) { + fprintf(stderr, "gsr error: cuda_create_codec_context failed: failed to create hardware device context\n"); + av_buffer_unref(&device_ctx); + return false; + } + + AVBufferRef *frame_context = av_hwframe_ctx_alloc(device_ctx); + if(!frame_context) { + fprintf(stderr, "gsr error: cuda_create_codec_context failed: failed to create hwframe context\n"); + av_buffer_unref(&device_ctx); + return false; + } + + AVHWFramesContext *hw_frame_context = (AVHWFramesContext*)frame_context->data; + hw_frame_context->width = width; + hw_frame_context->height = height; + hw_frame_context->sw_format = hdr ? AV_PIX_FMT_P010LE : AV_PIX_FMT_NV12; + hw_frame_context->format = video_codec_context->pix_fmt; + hw_frame_context->device_ref = device_ctx; + hw_frame_context->device_ctx = (AVHWDeviceContext*)device_ctx->data; + + if (av_hwframe_ctx_init(frame_context) < 0) { + fprintf(stderr, "gsr error: cuda_create_codec_context failed: failed to initialize hardware frame context " + "(note: ffmpeg version needs to be > 4.0)\n"); + av_buffer_unref(&device_ctx); + //av_buffer_unref(&frame_context); + return false; + } + + *cuda_stream = cuda_device_context->stream; + video_codec_context->hw_device_ctx = av_buffer_ref(device_ctx); + video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context); + return true; +} |