diff options
Diffstat (limited to 'src/encoder/video/vaapi.c')
| -rw-r--r-- | src/encoder/video/vaapi.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/encoder/video/vaapi.c b/src/encoder/video/vaapi.c new file mode 100644 index 0000000..318ab1a --- /dev/null +++ b/src/encoder/video/vaapi.c @@ -0,0 +1,221 @@ +#include "../../../include/encoder/video/vaapi.h" +#include "../../../include/utils.h" +#include "../../../include/egl.h" + +#include <libavcodec/avcodec.h> +#include <libavutil/hwcontext_vaapi.h> + +#include <va/va_drmcommon.h> + +#include <stdlib.h> +#include <unistd.h> + +typedef struct { + gsr_video_encoder_vaapi_params params; + + unsigned int target_textures[2]; + + VADisplay va_dpy; + VADRMPRIMESurfaceDescriptor prime; +} gsr_video_encoder_vaapi; + +static bool gsr_video_encoder_vaapi_setup_context(gsr_video_encoder_vaapi *self, AVCodecContext *video_codec_context) { + char render_path[128]; + if(!gsr_card_path_get_render_path(self->params.egl->card_path, render_path)) { + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: failed to get /dev/dri/renderDXXX file from %s\n", self->params.egl->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, "gsr error: gsr_video_encoder_vaapi_setup_context: failed to create hardware device context\n"); + return false; + } + + AVBufferRef *frame_context = av_hwframe_ctx_alloc(device_ctx); + if(!frame_context) { + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: 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 = video_codec_context->width; + hw_frame_context->height = video_codec_context->height; + hw_frame_context->sw_format = self->params.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; + self->va_dpy = vactx->display; + + if (av_hwframe_ctx_init(frame_context) < 0) { + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: 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; +} + +static uint32_t fourcc(uint32_t a, uint32_t b, uint32_t c, uint32_t d) { + return (d << 24) | (c << 16) | (b << 8) | a; +} + +static bool gsr_video_encoder_vaapi_setup_textures(gsr_video_encoder_vaapi *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_vaapi_setup_textures: av_hwframe_get_buffer failed: %d\n", res); + return false; + } + + VASurfaceID target_surface_id = (uintptr_t)frame->data[3]; + + VAStatus va_status = vaExportSurfaceHandle(self->va_dpy, target_surface_id, VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2, VA_EXPORT_SURFACE_WRITE_ONLY | VA_EXPORT_SURFACE_SEPARATE_LAYERS, &self->prime); + if(va_status != VA_STATUS_SUCCESS) { + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: vaExportSurfaceHandle failed, error: %d\n", va_status); + return false; + } + vaSyncSurface(self->va_dpy, target_surface_id); + + 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(self->prime.fourcc == VA_FOURCC_NV12 || self->prime.fourcc == VA_FOURCC_P010) { + const uint32_t *formats = self->prime.fourcc == VA_FOURCC_NV12 ? formats_nv12 : formats_p010; + const int div[2] = {1, 2}; // divide UV texture size by 2 because chroma is half size + + self->params.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 = self->prime.objects[self->prime.layers[layer].object_index[plane]].drm_format_modifier; + const intptr_t img_attr[] = { + EGL_LINUX_DRM_FOURCC_EXT, formats[i], + EGL_WIDTH, self->prime.width / div[i], + EGL_HEIGHT, self->prime.height / div[i], + EGL_DMA_BUF_PLANE0_FD_EXT, self->prime.objects[self->prime.layers[layer].object_index[plane]].fd, + EGL_DMA_BUF_PLANE0_OFFSET_EXT, self->prime.layers[layer].offset[plane], + EGL_DMA_BUF_PLANE0_PITCH_EXT, self->prime.layers[layer].pitch[plane], + EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT, modifier & 0xFFFFFFFFULL, + EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, modifier >> 32ULL, + EGL_NONE + }; + + while(self->params.egl->eglGetError() != EGL_SUCCESS){} + EGLImage image = self->params.egl->eglCreateImage(self->params.egl->egl_display, 0, EGL_LINUX_DMA_BUF_EXT, NULL, img_attr); + if(!image) { + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: failed to create egl image from drm fd for output drm fd, error: %d\n", self->params.egl->eglGetError()); + return false; + } + + self->params.egl->glBindTexture(GL_TEXTURE_2D, self->target_textures[i]); + self->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + self->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + self->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + self->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + while(self->params.egl->glGetError()) {} + while(self->params.egl->eglGetError() != EGL_SUCCESS){} + self->params.egl->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image); + if(self->params.egl->glGetError() != 0 || self->params.egl->eglGetError() != EGL_SUCCESS) { + // TODO: Get the error properly + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: failed to bind egl image to gl texture, error: %d\n", self->params.egl->eglGetError()); + self->params.egl->eglDestroyImage(self->params.egl->egl_display, image); + self->params.egl->glBindTexture(GL_TEXTURE_2D, 0); + return false; + } + + self->params.egl->eglDestroyImage(self->params.egl->egl_display, image); + self->params.egl->glBindTexture(GL_TEXTURE_2D, 0); + } + + return true; + } else { + fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: unexpected fourcc %u for output drm fd, expected nv12 or p010\n", self->prime.fourcc); + return false; + } +} + +static void gsr_video_encoder_vaapi_stop(gsr_video_encoder_vaapi *self, AVCodecContext *video_codec_context); + +static bool gsr_video_encoder_vaapi_start(gsr_video_encoder *encoder, AVCodecContext *video_codec_context, AVFrame *frame) { + gsr_video_encoder_vaapi *encoder_vaapi = encoder->priv; + + if(!gsr_video_encoder_vaapi_setup_context(encoder_vaapi, video_codec_context)) { + gsr_video_encoder_vaapi_stop(encoder_vaapi, video_codec_context); + return false; + } + + if(!gsr_video_encoder_vaapi_setup_textures(encoder_vaapi, video_codec_context, frame)) { + gsr_video_encoder_vaapi_stop(encoder_vaapi, video_codec_context); + return false; + } + + return true; +} + +void gsr_video_encoder_vaapi_stop(gsr_video_encoder_vaapi *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_device_ctx) + av_buffer_unref(&video_codec_context->hw_device_ctx); + if(video_codec_context->hw_frames_ctx) + av_buffer_unref(&video_codec_context->hw_frames_ctx); + + for(uint32_t i = 0; i < self->prime.num_objects; ++i) { + if(self->prime.objects[i].fd > 0) { + close(self->prime.objects[i].fd); + self->prime.objects[i].fd = 0; + } + } +} + +static void gsr_video_encoder_vaapi_get_textures(gsr_video_encoder *encoder, unsigned int *textures, int *num_textures, gsr_destination_color *destination_color) { + gsr_video_encoder_vaapi *encoder_vaapi = encoder->priv; + textures[0] = encoder_vaapi->target_textures[0]; + textures[1] = encoder_vaapi->target_textures[1]; + *num_textures = 2; + *destination_color = encoder_vaapi->params.hdr ? GSR_DESTINATION_COLOR_P010 : GSR_DESTINATION_COLOR_NV12; +} + +static void gsr_video_encoder_vaapi_destroy(gsr_video_encoder *encoder, AVCodecContext *video_codec_context) { + gsr_video_encoder_vaapi_stop(encoder->priv, video_codec_context); + free(encoder->priv); + free(encoder); +} + +gsr_video_encoder* gsr_video_encoder_vaapi_create(const gsr_video_encoder_vaapi_params *params) { + gsr_video_encoder *encoder = calloc(1, sizeof(gsr_video_encoder)); + if(!encoder) + return NULL; + + gsr_video_encoder_vaapi *encoder_vaapi = calloc(1, sizeof(gsr_video_encoder_vaapi)); + if(!encoder_vaapi) { + free(encoder); + return NULL; + } + + encoder_vaapi->params = *params; + + *encoder = (gsr_video_encoder) { + .start = gsr_video_encoder_vaapi_start, + .copy_textures_to_frame = NULL, + .get_textures = gsr_video_encoder_vaapi_get_textures, + .destroy = gsr_video_encoder_vaapi_destroy, + .priv = encoder_vaapi + }; + + return encoder; +} |