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Add vulkan video encoding option (-k h264_vulkan). WIP, not fully hardware accelerated yet

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dec05eba
2024-09-27 03:03:09 +02:00
parent 412cf0dbae
commit ebc8c69bac
14 changed files with 435 additions and 38 deletions
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2
src/encoder/video/cuda.c
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@@ -171,7 +171,7 @@ void gsr_video_encoder_cuda_stop(gsr_video_encoder_cuda *self, AVCodecContext *v
gsr_cuda_unload(&self->cuda);
}
static void gsr_video_encoder_cuda_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame) {
static void gsr_video_encoder_cuda_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame, gsr_color_conversion *color_conversion) {
gsr_video_encoder_cuda *self = encoder->priv;
const int div[2] = {1, 2}; // divide UV texture size by 2 because chroma is half size
for(int i = 0; i < 2; ++i) {

2
src/encoder/video/software.c
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@@ -84,7 +84,7 @@ void gsr_video_encoder_software_stop(gsr_video_encoder_software *self, AVCodecCo
self->target_textures[1] = 0;
}
static void gsr_video_encoder_software_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame) {
static void gsr_video_encoder_software_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame, gsr_color_conversion *color_conversion) {
gsr_video_encoder_software *self = encoder->priv;
// TODO: hdr support
const unsigned int formats[2] = { GL_RED, GL_RG };

1
src/encoder/video/vaapi.c
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@@ -235,7 +235,6 @@ gsr_video_encoder* gsr_video_encoder_vaapi_create(const gsr_video_encoder_vaapi_
*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

4
src/encoder/video/video.c
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@@ -9,10 +9,10 @@ bool gsr_video_encoder_start(gsr_video_encoder *encoder, AVCodecContext *video_c
return res;
}
void gsr_video_encoder_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame) {
void gsr_video_encoder_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame, gsr_color_conversion *color_conversion) {
assert(encoder->started);
if(encoder->copy_textures_to_frame)
encoder->copy_textures_to_frame(encoder, frame);
encoder->copy_textures_to_frame(encoder, frame, color_conversion);
}
void gsr_video_encoder_get_textures(gsr_video_encoder *encoder, unsigned int *textures, int *num_textures, gsr_destination_color *destination_color) {

186
src/encoder/video/vulkan.c
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@@ -5,10 +5,28 @@
#include <libavcodec/avcodec.h>
#include <libavutil/hwcontext_vulkan.h>
//#include <vulkan/vulkan_core.h>
#define GL_TEXTURE_TILING_EXT 0x9580
#define GL_OPTIMAL_TILING_EXT 0x9584
#define GL_LINEAR_TILING_EXT 0x9585
#define GL_PIXEL_PACK_BUFFER 0x88EB
#define GL_PIXEL_UNPACK_BUFFER 0x88EC
#define GL_STREAM_READ 0x88E1
#define GL_STREAM_DRAW 0x88E0
#define GL_READ_ONLY 0x88B8
#define GL_WRITE_ONLY 0x88B9
#define GL_READ_FRAMEBUFFER 0x8CA8
typedef struct {
gsr_video_encoder_vulkan_params params;
unsigned int target_textures[2];
AVBufferRef *device_ctx;
AVVulkanDeviceContext* vv;
unsigned int pbo_y[2];
unsigned int pbo_uv[2];
AVFrame *sw_frame;
} gsr_video_encoder_vulkan;
static bool gsr_video_encoder_vulkan_setup_context(gsr_video_encoder_vulkan *self, AVCodecContext *video_codec_context) {
@@ -32,6 +50,7 @@ static bool gsr_video_encoder_vulkan_setup_context(gsr_video_encoder_vulkan *sel
hw_frame_context->format = video_codec_context->pix_fmt;
hw_frame_context->device_ctx = (AVHWDeviceContext*)self->device_ctx->data;
//AVVulkanFramesContext *vk_frame_ctx = (AVVulkanFramesContext*)hw_frame_context->hwctx;
//hw_frame_context->initial_pool_size = 20;
if (av_hwframe_ctx_init(frame_context) < 0) {
@@ -47,12 +66,92 @@ static bool gsr_video_encoder_vulkan_setup_context(gsr_video_encoder_vulkan *sel
return true;
}
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->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_TILING_EXT, GL_OPTIMAL_TILING_EXT);
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 AVVulkanDeviceContext* video_codec_context_get_vulkan_data(AVCodecContext *video_codec_context) {
AVBufferRef *hw_frames_ctx = video_codec_context->hw_frames_ctx;
if(!hw_frames_ctx)
return NULL;
AVHWFramesContext *hw_frame_context = (AVHWFramesContext*)hw_frames_ctx->data;
AVHWDeviceContext *device_context = (AVHWDeviceContext*)hw_frame_context->device_ctx;
if(device_context->type != AV_HWDEVICE_TYPE_VULKAN)
return NULL;
return (AVVulkanDeviceContext*)device_context->hwctx;
}
static bool gsr_video_encoder_vulkan_setup_textures(gsr_video_encoder_vulkan *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_vulkan_setup_textures: av_hwframe_get_buffer failed: %d\n", res);
return false;
}
//AVVkFrame *target_surface_id = (AVVkFrame*)frame->data[0];
self->vv = video_codec_context_get_vulkan_data(video_codec_context);
const unsigned int internal_formats_nv12[2] = { GL_RGBA8, GL_RGBA8 };
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->params.egl, video_codec_context->width / div[i], video_codec_context->height / div[i], self->params.color_depth == GSR_COLOR_DEPTH_8_BITS ? internal_formats_nv12[i] : internal_formats_p010[i], formats[i]);
if(self->target_textures[i] == 0) {
fprintf(stderr, "gsr error: gsr_video_encoder_cuda_setup_textures: failed to create opengl texture\n");
return false;
}
}
self->params.egl->glGenBuffers(2, self->pbo_y);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[0]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 3840 * 2160, 0, GL_STREAM_READ);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[1]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 3840 * 2160, 0, GL_STREAM_READ);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
self->params.egl->glGenBuffers(2, self->pbo_uv);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_uv[0]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 1920 * 1080 * 2, 0, GL_STREAM_READ);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_uv[1]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 1920 * 1080 * 2, 0, GL_STREAM_READ);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
self->sw_frame = av_frame_alloc();
self->sw_frame->format = AV_PIX_FMT_NV12;
self->sw_frame->width = frame->width;
self->sw_frame->height = frame->height;
// TODO: Remove
if(av_frame_get_buffer(self->sw_frame, 0) < 0) {
fprintf(stderr, "failed to allocate sw frame\n");
}
// TODO: Remove
if(av_frame_make_writable(self->sw_frame) < 0) {
fprintf(stderr, "failed to make writable\n");
}
return true;
}
@@ -85,6 +184,91 @@ void gsr_video_encoder_vulkan_stop(gsr_video_encoder_vulkan *self, AVCodecContex
av_buffer_unref(&self->device_ctx);
}
static void nop_free(void *opaque, uint8_t *data) {
}
static void gsr_video_encoder_vulkan_copy_textures_to_frame(gsr_video_encoder *encoder, AVFrame *frame, gsr_color_conversion *color_conversion) {
gsr_video_encoder_vulkan *self = encoder->priv;
static int counter = 0;
++counter;
// AVBufferRef *av_buffer_create(uint8_t *data, size_t size,
// void (*free)(void *opaque, uint8_t *data),
// void *opaque, int flags);
while(self->params.egl->glGetError()){}
self->params.egl->glBindFramebuffer(GL_READ_FRAMEBUFFER, color_conversion->framebuffers[0]);
//fprintf(stderr, "1 gl err: %d\n", self->params.egl->glGetError());
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[counter % 2]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 3840 * 2160, 0, GL_STREAM_READ);
self->params.egl->glReadPixels(0, 0, 3840, 2160, GL_RED, GL_UNSIGNED_BYTE, 0);
//fprintf(stderr, "2 gl err: %d\n", self->params.egl->glGetError());
const int next_pbo_y = (counter + 1) % 2;
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[next_pbo_y]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 3840 * 2160, 0, GL_STREAM_READ);
//fprintf(stderr, "3 gl err: %d\n", self->params.egl->glGetError());
uint8_t *ptr_y = (uint8_t*)self->params.egl->glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
//fprintf(stderr, "4 gl err: %d\n", self->params.egl->glGetError());
if(!ptr_y) {
fprintf(stderr, "failed to map buffer y!\n");
}
while(self->params.egl->glGetError()){}
self->params.egl->glBindFramebuffer(GL_READ_FRAMEBUFFER, color_conversion->framebuffers[1]);
//fprintf(stderr, "5 gl err: %d\n", self->params.egl->glGetError());
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_uv[counter % 2]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 1920 * 1080 * 2, 0, GL_STREAM_READ);
//fprintf(stderr, "5.5 gl err: %d\n", self->params.egl->glGetError());
self->params.egl->glReadPixels(0, 0, 1920, 1080, GL_RG, GL_UNSIGNED_BYTE, 0);
//fprintf(stderr, "6 gl err: %d\n", self->params.egl->glGetError());
const int next_pbo_uv = (counter + 1) % 2;
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_uv[next_pbo_uv]);
self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, 1920 * 1080 * 2, 0, GL_STREAM_READ);
//fprintf(stderr, "7 gl err: %d\n", self->params.egl->glGetError());
uint8_t *ptr_uv = (uint8_t*)self->params.egl->glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
//fprintf(stderr, "8 gl err: %d\n", self->params.egl->glGetError());
if(!ptr_uv) {
fprintf(stderr, "failed to map buffer uv!\n");
}
//self->sw_frame->buf[0] = av_buffer_create(ptr_y, 3840 * 2160, nop_free, NULL, 0);
//self->sw_frame->buf[1] = av_buffer_create(ptr_uv, 1920 * 1080 * 2, nop_free, NULL, 0);
//self->sw_frame->data[0] = self->sw_frame->buf[0]->data;
//self->sw_frame->data[1] = self->sw_frame->buf[1]->data;
//self->sw_frame->extended_data[0] = self->sw_frame->data[0];
//self->sw_frame->extended_data[1] = self->sw_frame->data[1];
self->sw_frame->data[0] = ptr_y;
self->sw_frame->data[1] = ptr_uv;
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
self->params.egl->glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
//self->params.egl->glBindTexture(GL_TEXTURE_2D, self->target_textures[1]);
//self->params.egl->glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, sw_frame->data[1]);
//self->params.egl->glBindTexture(GL_TEXTURE_2D, 0);
int ret = av_hwframe_transfer_data(frame, self->sw_frame, 0);
if(ret < 0) {
fprintf(stderr, "transfer data failed, error: %s\n", av_err2str(ret));
}
//av_buffer_unref(&self->sw_frame->buf[0]);
//av_buffer_unref(&self->sw_frame->buf[1]);
//av_frame_free(&sw_frame);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[next_pbo_y]);
self->params.egl->glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[next_pbo_uv]);
self->params.egl->glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
}
static void gsr_video_encoder_vulkan_get_textures(gsr_video_encoder *encoder, unsigned int *textures, int *num_textures, gsr_destination_color *destination_color) {
gsr_video_encoder_vulkan *self = encoder->priv;
textures[0] = self->target_textures[0];
@@ -114,7 +298,7 @@ gsr_video_encoder* gsr_video_encoder_vulkan_create(const gsr_video_encoder_vulka
*encoder = (gsr_video_encoder) {
.start = gsr_video_encoder_vulkan_start,
.copy_textures_to_frame = NULL,
.copy_textures_to_frame = gsr_video_encoder_vulkan_copy_textures_to_frame,
.get_textures = gsr_video_encoder_vulkan_get_textures,
.destroy = gsr_video_encoder_vulkan_destroy,
.priv = encoder_vulkan