aboutsummaryrefslogtreecommitdiff
path: root/src/encoder/video/vaapi.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/encoder/video/vaapi.c')
-rw-r--r--src/encoder/video/vaapi.c221
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;
+}