fully in gpu
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dec05eba
parent
35810337f7
commit
eb911f4372
87
src/main.cpp
87
src/main.cpp
@ -144,17 +144,13 @@ static bool recreate_window_pixmap(Display *dpy, Window window_id, WindowPixmap
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glGenerateMipmap(GL_TEXTURE_2D);
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glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &pixmap.texture_width);
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glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &pixmap.texture_height);
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glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);//GL_LINEAR );
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glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);//GL_LINEAR);//GL_LINEAR_MIPMAP_LINEAR );
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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printf("texture width: %d, height: %d\n", pixmap.texture_width, pixmap.texture_height);
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glGenTextures(1, &pixmap.target_texture_id);
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glBindTexture(GL_TEXTURE_2D, pixmap.target_texture_id);
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//glTexStorage2D()
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uint8_t *image_data = (uint8_t*)malloc(pixmap.texture_width * pixmap.texture_height * 4);
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assert(image_data);
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for(int i = 0; i < pixmap.texture_width * pixmap.texture_height * 4; i += 4) {
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*(uint32_t*)&image_data[i] = 0xFF0000FF;
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}
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//glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixmap.texture_width, pixmap.texture_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, image_data);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixmap.texture_width, pixmap.texture_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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glGenerateMipmap(GL_TEXTURE_2D);
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int err2 = glGetError();
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@ -292,7 +288,7 @@ static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, A
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//av_packet_unref(&av_packet);
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}
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#else
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static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context, FILE *output_file) {
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static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context) {
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for( ; ; ) {
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AVPacket *av_packet = new AVPacket;
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av_init_packet(av_packet);
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@ -310,12 +306,13 @@ static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, A
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av_packet->stream_index = stream->index;
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//av_packet->stream_index = 0;
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/*
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int written = fwrite(av_packet->data, 1, av_packet->size, output_file);
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if(written != av_packet->size) {
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fprintf(stderr, "Failed to write %d bytes to file: %d, %d\n", av_packet->size, written, ferror(output_file));
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}
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*/
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if(av_interleaved_write_frame(av_format_context, av_packet) < 0) {
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fprintf(stderr, "Error: Failed to write frame to muxer\n");
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}
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@ -363,11 +360,11 @@ static AVStream* add_stream(AVFormatContext *av_format_context, AVCodec **codec,
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codec_context->codec_id = codec_id;
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codec_context->bit_rate = 400000;
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// Resolution must be a multiple of two
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codec_context->width = 640;
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codec_context->height = 480;
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codec_context->width = 1920;
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codec_context->height = 1080;
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// Timebase: This is the fundamental unit of time (in seconds) in terms of
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// which frame timestamps are represented. For fixed-fps content,
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// timebase should be 1/framerate and timestamp increments should be identitcal to 1
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// timebase should be 1/framerate and timestamp increments should be identical to 1
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codec_context->time_base.num = 1;
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codec_context->time_base.den = 60;
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codec_context->framerate.num = 60;
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@ -461,16 +458,11 @@ static void open_video(AVCodec *codec, AVStream *stream, WindowPixmap &window_pi
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exit(1);
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}
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res = cuCtxPopCurrent(&old_ctx);
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if(av_hwframe_get_buffer(frame_context, *frame, 0) < 0) {
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fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
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exit(1);
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}
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}
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static void close_video(AVStream *video_stream, AVFrame *frame) {
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avcodec_close(video_stream->codec);
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av_frame_free(&frame);
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//av_frame_free(&frame);
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}
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int main(int argc, char **argv) {
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@ -511,7 +503,13 @@ int main(int argc, char **argv) {
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return 1;
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}
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GLFWwindow *window = glfwCreateWindow(3840, 2160, "Hello world", nullptr, nullptr);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 5);
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
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GLFWwindow *window = glfwCreateWindow(1280, 720, "Hello world", nullptr, nullptr);
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if(!window) {
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fprintf(stderr, "Error: Failed to create glfw window\n");
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glfwTerminate();
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@ -519,6 +517,7 @@ int main(int argc, char **argv) {
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}
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glfwMakeContextCurrent(window);
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//glfwSwapInterval(1);
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glewExperimental = GL_TRUE;
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GLenum nGlewError = glewInit();
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@ -598,31 +597,6 @@ int main(int argc, char **argv) {
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int frame_count = 0;
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FILE *output_file = fopen("video.mp4", "wb");
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if(!output_file) {
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fprintf(stderr, "Failed to open file!\n");
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exit(1);
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}
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while(!glfwWindowShouldClose(window)) {
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glClear(GL_COLOR_BUFFER_BIT);
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glfwSwapBuffers(window);
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glfwPollEvents();
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AVCodecContext *codec_context = video_stream->codec;
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if(av_hwframe_get_buffer(codec_context->hw_frames_ctx, frame, 0) < 0) {
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fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
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exit(1);
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}
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glCopyImageSubData(
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window_pixmap.texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
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window_pixmap.target_texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
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window_pixmap.texture_width, window_pixmap.texture_height, 1);
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int err = glGetError();
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printf("error: %d\n", err);
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// Get context
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CUresult res;
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CUcontext old_ctx;
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res = cuCtxPopCurrent(&old_ctx);
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@ -637,7 +611,26 @@ int main(int argc, char **argv) {
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res = cuGraphicsSubResourceGetMappedArray(&mapped_array, cuda_graphics_resource, 0, 0);
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// Release texture
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res = cuGraphicsUnmapResources(1, &cuda_graphics_resource, 0);
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//res = cuGraphicsUnmapResources(1, &cuda_graphics_resource, 0);
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// TODO: Remove this
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AVCodecContext *codec_context = video_stream->codec;
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if(av_hwframe_get_buffer(codec_context->hw_frames_ctx, frame, 0) < 0) {
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fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
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exit(1);
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}
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while(!glfwWindowShouldClose(window)) {
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glClear(GL_COLOR_BUFFER_BIT);
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glfwSwapBuffers(window);
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glfwPollEvents();
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glCopyImageSubData(
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window_pixmap.texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
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window_pixmap.target_texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
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window_pixmap.texture_width, window_pixmap.texture_height, 1);
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//int err = glGetError();
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//printf("error: %d\n", err);
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CUDA_MEMCPY2D memcpy_struct;
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memcpy_struct.srcXInBytes = 0;
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@ -654,13 +647,13 @@ int main(int argc, char **argv) {
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memcpy_struct.WidthInBytes = frame->width * 4;
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memcpy_struct.Height = frame->height;
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cuMemcpy2D(&memcpy_struct);
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res = cuCtxPopCurrent(&old_ctx);
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//res = cuCtxPopCurrent(&old_ctx);
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frame->pts = frame_count++;
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if(avcodec_send_frame(video_stream->codec, frame) < 0) {
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fprintf(stderr, "Error: avcodec_send_frame failed\n");
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}
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receive_frames(video_stream->codec, video_stream, av_format_context, output_file);
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receive_frames(video_stream->codec, video_stream, av_format_context);
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}
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#if 0
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