diff options
Diffstat (limited to 'src/encoder/video/vulkan.c')
| -rw-r--r-- | src/encoder/video/vulkan.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/src/encoder/video/vulkan.c b/src/encoder/video/vulkan.c new file mode 100644 index 0000000..0b6c380 --- /dev/null +++ b/src/encoder/video/vulkan.c @@ -0,0 +1,313 @@ +#include "../../../include/encoder/video/vulkan.h" +#include "../../../include/utils.h" +#include "../../../include/egl.h" + +#include <libavcodec/avcodec.h> +#define VK_NO_PROTOTYPES +#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) { + AVDictionary *options = NULL; + //av_dict_set(&options, "linear_images", "1", 0); + //av_dict_set(&options, "disable_multiplane", "1", 0); + + // TODO: Use correct device + if(av_hwdevice_ctx_create(&self->device_ctx, AV_HWDEVICE_TYPE_VULKAN, NULL, options, 0) < 0) { + fprintf(stderr, "gsr error: gsr_video_encoder_vulkan_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_vulkan_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; + + //AVVulkanFramesContext *vk_frame_ctx = (AVVulkanFramesContext*)hw_frame_context->hwctx; + //hw_frame_context->initial_pool_size = 20; + + if (av_hwframe_ctx_init(frame_context) < 0) { + fprintf(stderr, "gsr error: gsr_video_encoder_vulkan_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 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, frame->width * frame->height, 0, GL_STREAM_READ); + + self->params.egl->glBindBuffer(GL_PIXEL_PACK_BUFFER, self->pbo_y[1]); + self->params.egl->glBufferData(GL_PIXEL_PACK_BUFFER, frame->width * frame->height, 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, (frame->width/2 * frame->height/2) * 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, (frame->width/2 * frame->height/2) * 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; +} + +static void gsr_video_encoder_vulkan_stop(gsr_video_encoder_vulkan *self, AVCodecContext *video_codec_context); + +static bool gsr_video_encoder_vulkan_start(gsr_video_encoder *encoder, AVCodecContext *video_codec_context, AVFrame *frame) { + gsr_video_encoder_vulkan *self = encoder->priv; + + if(!gsr_video_encoder_vulkan_setup_context(self, video_codec_context)) { + gsr_video_encoder_vulkan_stop(self, video_codec_context); + return false; + } + + if(!gsr_video_encoder_vulkan_setup_textures(self, video_codec_context, frame)) { + gsr_video_encoder_vulkan_stop(self, video_codec_context); + return false; + } + + return true; +} + +void gsr_video_encoder_vulkan_stop(gsr_video_encoder_vulkan *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); +} + +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, frame->width * frame->height, 0, GL_STREAM_READ); + self->params.egl->glReadPixels(0, 0, frame->width, frame->height, 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, frame->width * frame->height, 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, (frame->width/2 * frame->height/2) * 2, 0, GL_STREAM_READ); + //fprintf(stderr, "5.5 gl err: %d\n", self->params.egl->glGetError()); + self->params.egl->glReadPixels(0, 0, frame->width/2, frame->height/2, 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, (frame->width/2 * frame->height/2) * 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]; + 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_vulkan_destroy(gsr_video_encoder *encoder, AVCodecContext *video_codec_context) { + gsr_video_encoder_vulkan_stop(encoder->priv, video_codec_context); + free(encoder->priv); + free(encoder); +} + +gsr_video_encoder* gsr_video_encoder_vulkan_create(const gsr_video_encoder_vulkan_params *params) { + gsr_video_encoder *encoder = calloc(1, sizeof(gsr_video_encoder)); + if(!encoder) + return NULL; + + gsr_video_encoder_vulkan *encoder_vulkan = calloc(1, sizeof(gsr_video_encoder_vulkan)); + if(!encoder_vulkan) { + free(encoder); + return NULL; + } + + encoder_vulkan->params = *params; + + *encoder = (gsr_video_encoder) { + .start = gsr_video_encoder_vulkan_start, + .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 + }; + + return encoder; +} |