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#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>
#include <fcntl.h>
typedef struct {
gsr_video_encoder_vaapi_params params;
unsigned int target_textures[2];
AVBufferRef *device_ctx;
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;
}
if(av_hwdevice_ctx_create(&self->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(self->device_ctx);
if(!frame_context) {
fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: 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;
//hw_frame_context->initial_pool_size = 20;
AVVAAPIDeviceContext *vactx = ((AVHWDeviceContext*)self->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(&self->device_ctx);
//av_buffer_unref(&frame_context);
return false;
}
video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context);
av_buffer_unref(&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;
int fds[4];
uint32_t offsets[4];
uint32_t pitches[4];
uint64_t modifiers[4];
for(uint32_t j = 0; j < self->prime.layers[layer].num_planes; ++j) {
// TODO: Close these? in _stop, using self->prime
fds[j] = self->prime.objects[self->prime.layers[layer].object_index[j]].fd;
offsets[j] = self->prime.layers[layer].offset[j];
pitches[j] = self->prime.layers[layer].pitch[j];
modifiers[j] = self->prime.objects[self->prime.layers[layer].object_index[j]].drm_format_modifier;
}
intptr_t img_attr[44];
setup_dma_buf_attrs(img_attr, formats[i], self->prime.width / div[i], self->prime.height / div[i],
fds, offsets, pitches, modifiers, self->prime.layers[layer].num_planes, true);
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 *self = encoder->priv;
if(self->params.egl->gpu_info.vendor == GSR_GPU_VENDOR_AMD && video_codec_context->codec_id == AV_CODEC_ID_HEVC) {
// TODO: dont do this if using ffmpeg reports that this is not needed (AMD driver bug that was fixed recently)
video_codec_context->width = FFALIGN(video_codec_context->width, 64);
video_codec_context->height = FFALIGN(video_codec_context->height, 16);
} else if(self->params.egl->gpu_info.vendor == GSR_GPU_VENDOR_AMD && video_codec_context->codec_id == AV_CODEC_ID_AV1) {
// TODO: Dont do this for VCN 5 and forward which should fix this hardware bug
video_codec_context->width = FFALIGN(video_codec_context->width, 64);
// AMD driver has special case handling for 1080 height to set it to 1082 instead of 1088 (1080 aligned to 16).
// TODO: Set height to 1082 in this case, but it wont work because it will be aligned to 1088.
if(video_codec_context->height == 1080) {
video_codec_context->height = 1080;
} else {
video_codec_context->height = FFALIGN(video_codec_context->height, 16);
}
}
if(video_codec_context->width != frame->width || video_codec_context->height != frame->height) {
fprintf(stderr, "gsr warning: gsr_video_encoder_vaapi_start: black bars have been added to the video because of a bug in AMD drivers/hardware. Record with h264 codec instead (-k h264) to get around this issue\n");
}
frame->width = video_codec_context->width;
frame->height = video_codec_context->height;
if(!gsr_video_encoder_vaapi_setup_context(self, video_codec_context)) {
gsr_video_encoder_vaapi_stop(self, video_codec_context);
return false;
}
if(!gsr_video_encoder_vaapi_setup_textures(self, video_codec_context, frame)) {
gsr_video_encoder_vaapi_stop(self, 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_frames_ctx)
av_buffer_unref(&video_codec_context->hw_frames_ctx);
if(self->device_ctx)
av_buffer_unref(&self->device_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 *self = encoder->priv;
textures[0] = self->target_textures[0];
textures[1] = self->target_textures[1];
*num_textures = 2;
*destination_color = self->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? 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,
.get_textures = gsr_video_encoder_vaapi_get_textures,
.destroy = gsr_video_encoder_vaapi_destroy,
.priv = encoder_vaapi
};
return encoder;
}
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