fully in gpu
This commit is contained in:
dec05eba
parent
35810337f7
commit
eb911f4372
91
src/main.cpp
91
src/main.cpp
@ -144,17 +144,13 @@ static bool recreate_window_pixmap(Display *dpy, Window window_id, WindowPixmap
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &pixmap.texture_width);
|
||||
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &pixmap.texture_height);
|
||||
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);//GL_LINEAR );
|
||||
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);//GL_LINEAR);//GL_LINEAR_MIPMAP_LINEAR );
|
||||
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
||||
printf("texture width: %d, height: %d\n", pixmap.texture_width, pixmap.texture_height);
|
||||
|
||||
glGenTextures(1, &pixmap.target_texture_id);
|
||||
glBindTexture(GL_TEXTURE_2D, pixmap.target_texture_id);
|
||||
//glTexStorage2D()
|
||||
uint8_t *image_data = (uint8_t*)malloc(pixmap.texture_width * pixmap.texture_height * 4);
|
||||
assert(image_data);
|
||||
for(int i = 0; i < pixmap.texture_width * pixmap.texture_height * 4; i += 4) {
|
||||
*(uint32_t*)&image_data[i] = 0xFF0000FF;
|
||||
}
|
||||
//glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixmap.texture_width, pixmap.texture_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, image_data);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixmap.texture_width, pixmap.texture_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
int err2 = glGetError();
|
||||
@ -292,7 +288,7 @@ static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, A
|
||||
//av_packet_unref(&av_packet);
|
||||
}
|
||||
#else
|
||||
static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context, FILE *output_file) {
|
||||
static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context) {
|
||||
for( ; ; ) {
|
||||
AVPacket *av_packet = new AVPacket;
|
||||
av_init_packet(av_packet);
|
||||
@ -310,12 +306,13 @@ static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, A
|
||||
av_packet->stream_index = stream->index;
|
||||
//av_packet->stream_index = 0;
|
||||
|
||||
/*
|
||||
int written = fwrite(av_packet->data, 1, av_packet->size, output_file);
|
||||
|
||||
if(written != av_packet->size) {
|
||||
fprintf(stderr, "Failed to write %d bytes to file: %d, %d\n", av_packet->size, written, ferror(output_file));
|
||||
}
|
||||
|
||||
*/
|
||||
if(av_interleaved_write_frame(av_format_context, av_packet) < 0) {
|
||||
fprintf(stderr, "Error: Failed to write frame to muxer\n");
|
||||
}
|
||||
@ -363,11 +360,11 @@ static AVStream* add_stream(AVFormatContext *av_format_context, AVCodec **codec,
|
||||
codec_context->codec_id = codec_id;
|
||||
codec_context->bit_rate = 400000;
|
||||
// Resolution must be a multiple of two
|
||||
codec_context->width = 640;
|
||||
codec_context->height = 480;
|
||||
codec_context->width = 1920;
|
||||
codec_context->height = 1080;
|
||||
// Timebase: This is the fundamental unit of time (in seconds) in terms of
|
||||
// which frame timestamps are represented. For fixed-fps content,
|
||||
// timebase should be 1/framerate and timestamp increments should be identitcal to 1
|
||||
// timebase should be 1/framerate and timestamp increments should be identical to 1
|
||||
codec_context->time_base.num = 1;
|
||||
codec_context->time_base.den = 60;
|
||||
codec_context->framerate.num = 60;
|
||||
@ -461,16 +458,11 @@ static void open_video(AVCodec *codec, AVStream *stream, WindowPixmap &window_pi
|
||||
exit(1);
|
||||
}
|
||||
res = cuCtxPopCurrent(&old_ctx);
|
||||
|
||||
if(av_hwframe_get_buffer(frame_context, *frame, 0) < 0) {
|
||||
fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
static void close_video(AVStream *video_stream, AVFrame *frame) {
|
||||
avcodec_close(video_stream->codec);
|
||||
av_frame_free(&frame);
|
||||
//av_frame_free(&frame);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
@ -511,7 +503,13 @@ int main(int argc, char **argv) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
GLFWwindow *window = glfwCreateWindow(3840, 2160, "Hello world", nullptr, nullptr);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 5);
|
||||
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
|
||||
|
||||
GLFWwindow *window = glfwCreateWindow(1280, 720, "Hello world", nullptr, nullptr);
|
||||
if(!window) {
|
||||
fprintf(stderr, "Error: Failed to create glfw window\n");
|
||||
glfwTerminate();
|
||||
@ -519,6 +517,7 @@ int main(int argc, char **argv) {
|
||||
}
|
||||
|
||||
glfwMakeContextCurrent(window);
|
||||
//glfwSwapInterval(1);
|
||||
|
||||
glewExperimental = GL_TRUE;
|
||||
GLenum nGlewError = glewInit();
|
||||
@ -598,9 +597,26 @@ int main(int argc, char **argv) {
|
||||
|
||||
int frame_count = 0;
|
||||
|
||||
FILE *output_file = fopen("video.mp4", "wb");
|
||||
if(!output_file) {
|
||||
fprintf(stderr, "Failed to open file!\n");
|
||||
CUresult res;
|
||||
CUcontext old_ctx;
|
||||
res = cuCtxPopCurrent(&old_ctx);
|
||||
res = cuCtxPushCurrent(*cuda_context);
|
||||
|
||||
// Get texture
|
||||
res = cuGraphicsResourceSetMapFlags(cuda_graphics_resource, CU_GRAPHICS_MAP_RESOURCE_FLAGS_READ_ONLY);
|
||||
res = cuGraphicsMapResources(1, &cuda_graphics_resource, 0);
|
||||
|
||||
// Map texture to cuda array
|
||||
CUarray mapped_array;
|
||||
res = cuGraphicsSubResourceGetMappedArray(&mapped_array, cuda_graphics_resource, 0, 0);
|
||||
|
||||
// Release texture
|
||||
//res = cuGraphicsUnmapResources(1, &cuda_graphics_resource, 0);
|
||||
|
||||
// TODO: Remove this
|
||||
AVCodecContext *codec_context = video_stream->codec;
|
||||
if(av_hwframe_get_buffer(codec_context->hw_frames_ctx, frame, 0) < 0) {
|
||||
fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
@ -609,35 +625,12 @@ int main(int argc, char **argv) {
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
|
||||
AVCodecContext *codec_context = video_stream->codec;
|
||||
if(av_hwframe_get_buffer(codec_context->hw_frames_ctx, frame, 0) < 0) {
|
||||
fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
glCopyImageSubData(
|
||||
window_pixmap.texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
|
||||
window_pixmap.target_texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
|
||||
window_pixmap.texture_width, window_pixmap.texture_height, 1);
|
||||
int err = glGetError();
|
||||
printf("error: %d\n", err);
|
||||
|
||||
// Get context
|
||||
CUresult res;
|
||||
CUcontext old_ctx;
|
||||
res = cuCtxPopCurrent(&old_ctx);
|
||||
res = cuCtxPushCurrent(*cuda_context);
|
||||
|
||||
// Get texture
|
||||
res = cuGraphicsResourceSetMapFlags(cuda_graphics_resource, CU_GRAPHICS_MAP_RESOURCE_FLAGS_READ_ONLY);
|
||||
res = cuGraphicsMapResources(1, &cuda_graphics_resource, 0);
|
||||
|
||||
// Map texture to cuda array
|
||||
CUarray mapped_array;
|
||||
res = cuGraphicsSubResourceGetMappedArray(&mapped_array, cuda_graphics_resource, 0, 0);
|
||||
|
||||
// Release texture
|
||||
res = cuGraphicsUnmapResources(1, &cuda_graphics_resource, 0);
|
||||
//int err = glGetError();
|
||||
//printf("error: %d\n", err);
|
||||
|
||||
CUDA_MEMCPY2D memcpy_struct;
|
||||
memcpy_struct.srcXInBytes = 0;
|
||||
@ -654,13 +647,13 @@ int main(int argc, char **argv) {
|
||||
memcpy_struct.WidthInBytes = frame->width * 4;
|
||||
memcpy_struct.Height = frame->height;
|
||||
cuMemcpy2D(&memcpy_struct);
|
||||
res = cuCtxPopCurrent(&old_ctx);
|
||||
//res = cuCtxPopCurrent(&old_ctx);
|
||||
|
||||
frame->pts = frame_count++;
|
||||
if(avcodec_send_frame(video_stream->codec, frame) < 0) {
|
||||
fprintf(stderr, "Error: avcodec_send_frame failed\n");
|
||||
}
|
||||
receive_frames(video_stream->codec, video_stream, av_format_context, output_file);
|
||||
receive_frames(video_stream->codec, video_stream, av_format_context);
|
||||
}
|
||||
|
||||
#if 0
|
||||
|
||||
Loading…
Reference in New Issue
Block a user