PapaTutuWawa/gpu-screen-recorder
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This commit is contained in:
dec05eba 2020-03-28 08:47:53 +01:00
parent d841066768
commit 35810337f7
2 changed files with 449 additions and 21 deletions
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4
project.conf
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@ -4,8 +4,10 @@ type = "executable"
version = "0.1.0" version = "0.1.0"
platforms = ["posix"] platforms = ["posix"]
[config]
include_dirs = ["/opt/cuda/targets/x86_64-linux/include"]
[dependencies] [dependencies]
cuda-10.1 = ">=10"
ffnvcodec = ">=9" ffnvcodec = ">=9"
glew = ">=2" glew = ">=2"
glx = ">=1" glx = ">=1"

466
src/main.cpp
View File

@ -1,5 +1,6 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <assert.h>
#include <string> #include <string>
#include <vector> #include <vector>
@ -38,18 +39,17 @@ struct ScopedGLXFBConfig {
}; };
struct WindowPixmap { struct WindowPixmap {
WindowPixmap() : pixmap(None), glx_pixmap(None), texture_id(0), texture_width(0), texture_height(0) { WindowPixmap() : pixmap(None), glx_pixmap(None), texture_id(0), target_texture_id(0), texture_width(0), texture_height(0) {
} }
Pixmap pixmap; Pixmap pixmap;
GLXPixmap glx_pixmap; GLXPixmap glx_pixmap;
GLuint texture_id; GLuint texture_id;
GLuint target_texture_id;
GLint texture_width; GLint texture_width;
GLint texture_height; GLint texture_height;
GLuint dst_texture_id;
}; };
static bool x11_supports_composite_named_window_pixmap(Display *dpy) { static bool x11_supports_composite_named_window_pixmap(Display *dpy) {
@ -64,6 +64,11 @@ static bool x11_supports_composite_named_window_pixmap(Display *dpy) {
} }
static void cleanup_window_pixmap(Display *dpy, WindowPixmap &pixmap) { static void cleanup_window_pixmap(Display *dpy, WindowPixmap &pixmap) {
if(pixmap.target_texture_id) {
glDeleteTextures(1, &pixmap.target_texture_id);
pixmap.target_texture_id = 0;
}
if(pixmap.texture_id) { if(pixmap.texture_id) {
glDeleteTextures(1, &pixmap.texture_id); glDeleteTextures(1, &pixmap.texture_id);
pixmap.texture_id = 0; pixmap.texture_id = 0;
@ -90,16 +95,16 @@ static bool recreate_window_pixmap(Display *dpy, Window window_id, WindowPixmap
GLX_BIND_TO_TEXTURE_RGBA_EXT, True, GLX_BIND_TO_TEXTURE_RGBA_EXT, True,
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT, GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
GLX_BIND_TO_TEXTURE_TARGETS_EXT, GLX_TEXTURE_2D_BIT_EXT, GLX_BIND_TO_TEXTURE_TARGETS_EXT, GLX_TEXTURE_2D_BIT_EXT,
//GLX_BIND_TO_MIPMAP_TEXTURE_EXT, True, GLX_BIND_TO_MIPMAP_TEXTURE_EXT, True,
GLX_DOUBLEBUFFER, False, GLX_DOUBLEBUFFER, False,
GLX_Y_INVERTED_EXT, (int)GLX_DONT_CARE, //GLX_Y_INVERTED_EXT, (int)GLX_DONT_CARE,
None None
}; };
const int pixmap_attribs[] = { const int pixmap_attribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT, GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGB_EXT, GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
GLX_MIPMAP_TEXTURE_EXT, 0, GLX_MIPMAP_TEXTURE_EXT, 1,
None None
}; };
@ -134,12 +139,42 @@ static bool recreate_window_pixmap(Display *dpy, Window window_id, WindowPixmap
//glEnable(GL_BLEND); //glEnable(GL_BLEND);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#if 1
glXBindTexImageEXT(dpy, pixmap.glx_pixmap, GLX_FRONT_EXT, NULL); glXBindTexImageEXT(dpy, pixmap.glx_pixmap, GLX_FRONT_EXT, NULL);
glGenerateMipmap(GL_TEXTURE_2D);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &pixmap.texture_width); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &pixmap.texture_width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &pixmap.texture_height); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &pixmap.texture_height);
printf("texture width: %d, height: %d\n", pixmap.texture_width, pixmap.texture_height); printf("texture width: %d, height: %d\n", pixmap.texture_width, pixmap.texture_height);
//glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixmap.texture_width, pixmap.texture_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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();
printf("error: %d\n", err2);
glCopyImageSubData(
pixmap.texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
pixmap.target_texture_id, GL_TEXTURE_2D, 0, 0, 0, 0,
pixmap.texture_width, pixmap.texture_height, 1);
int err = glGetError();
printf("error: %d\n", err);
#else
pixmap.texture_width = 640;
pixmap.texture_height = 480;
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);
#endif
//glXBindTexImageEXT(dpy, pixmap.glx_pixmap, GLX_FRONT_EXT, NULL); //glXBindTexImageEXT(dpy, pixmap.glx_pixmap, GLX_FRONT_EXT, NULL);
//glGenerateTextureMipmapEXT(glxpixmap, GL_TEXTURE_2D); //glGenerateTextureMipmapEXT(glxpixmap, GL_TEXTURE_2D);
@ -147,23 +182,19 @@ static bool recreate_window_pixmap(Display *dpy, Window window_id, WindowPixmap
//glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ); //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
//glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE ); //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);//GL_LINEAR ); 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 ); 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); glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
glGenTextures(1, &pixmap.dst_texture_id); return pixmap.texture_id != 0 && pixmap.target_texture_id != 0;
glBindTexture(GL_TEXTURE_2D, pixmap.dst_texture_id);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, pixmap.texture_width, pixmap.texture_height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glCopyImageSubData(pixmap.texture_id, GL_TEXTURE_2D, 0, 0, 0, 0, pixmap.dst_texture_id, GL_TEXTURE_2D, 0, 0, 0, 0, pixmap.texture_width, pixmap.texture_height, 0);
glBindTexture(GL_TEXTURE_2D, 0);
return pixmap.texture_id != 0 && pixmap.dst_texture_id != 0;
} }
std::vector<std::string> get_hardware_acceleration_device_names() { std::vector<std::string> get_hardware_acceleration_device_names() {
#if 1 #if 0
std::vector<std::string> result; std::vector<std::string> result;
cl_uint platform_count = 0; cl_uint platform_count = 0;
@ -219,6 +250,7 @@ static inline double ToDouble(const AVRational& r) {
return (double) r.num / (double) r.den; return (double) r.num / (double) r.den;
} }
#if 0
static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context) { static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context) {
for( ; ; ) { for( ; ; ) {
AVPacket *av_packet = new AVPacket; AVPacket *av_packet = new AVPacket;
@ -259,6 +291,187 @@ static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, A
} }
//av_packet_unref(&av_packet); //av_packet_unref(&av_packet);
} }
#else
static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context, FILE *output_file) {
for( ; ; ) {
AVPacket *av_packet = new AVPacket;
av_init_packet(av_packet);
av_packet->data = NULL;
av_packet->size = 0;
int res = avcodec_receive_packet(av_codec_context, av_packet);
if(res == 0) { // we have a packet, send the packet to the muxer
//printf("Received packet!\n");
//printf("data: %p, size: %d, pts: %ld\n", (void*)av_packet->data, av_packet->size, av_packet->pts);
//printf("timebase: %f\n", ToDouble(stream->time_base));
av_packet->pts = av_rescale_q_rnd(av_packet->pts, av_codec_context->time_base, stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
av_packet->dts = av_rescale_q_rnd(av_packet->dts, av_codec_context->time_base, stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
av_packet->duration = av_rescale_q(av_packet->duration, av_codec_context->time_base, stream->time_base);
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");
}
//av_packet_unref(&av_packet);
} else if(res == AVERROR(EAGAIN)) { // we have no packet
//printf("No packet!\n");
break;
} else if(res == AVERROR_EOF) { // this is the end of the stream
printf("End of stream!\n");
break;
} else {
printf("Unexpected error: %d\n", res);
break;
}
}
//av_packet_unref(&av_packet);
}
#endif
static AVStream* add_stream(AVFormatContext *av_format_context, AVCodec **codec, enum AVCodecID codec_id) {
//*codec = avcodec_find_encoder(codec_id);
*codec = avcodec_find_encoder_by_name("h264_nvenc");
if(!*codec) {
fprintf(stderr, "Error: Could not find encoder for '%s'\n", avcodec_get_name(codec_id));
exit(1);
}
AVStream *stream = avformat_new_stream(av_format_context, *codec);
if(!stream) {
fprintf(stderr, "Error: Could not allocate stream\n");
exit(1);
}
stream->id = av_format_context->nb_streams - 1;
AVCodecContext *codec_context = stream->codec;
switch((*codec)->type) {
case AVMEDIA_TYPE_AUDIO: {
codec_context->sample_fmt = (*codec)->sample_fmts ? (*codec)->sample_fmts[0] : AV_SAMPLE_FMT_FLTP;
codec_context->bit_rate = 64000;
codec_context->sample_rate = 44100;
codec_context->channels = 2;
break;
}
case AVMEDIA_TYPE_VIDEO: {
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;
// 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
codec_context->time_base.num = 1;
codec_context->time_base.den = 60;
codec_context->framerate.num = 60;
codec_context->framerate.den = 1;
codec_context->sample_aspect_ratio.num = 1;
codec_context->sample_aspect_ratio.den = 1;
codec_context->gop_size = 12; // Emit one intra frame every twelve frames at most
codec_context->pix_fmt = AV_PIX_FMT_CUDA;
if(codec_context->codec_id == AV_CODEC_ID_MPEG1VIDEO)
codec_context->mb_decision = 2;
break;
}
default:
break;
}
// Some formats want stream headers to be seperate
if(av_format_context->oformat->flags & AVFMT_GLOBALHEADER)
av_format_context->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
return stream;
}
static void open_video(AVCodec *codec, AVStream *stream, WindowPixmap &window_pixmap, AVFrame **frame, AVBufferRef **device_ctx, CUgraphicsResource *cuda_graphics_resource) {
int ret;
AVCodecContext *codec_context = stream->codec;
std::vector<std::string> hardware_accelerated_devices = get_hardware_acceleration_device_names();
if(hardware_accelerated_devices.empty()) {
fprintf(stderr, "Error: No hardware accelerated device was found on your system\n");
exit(1);
}
if(av_hwdevice_ctx_create(device_ctx, AV_HWDEVICE_TYPE_CUDA, hardware_accelerated_devices[0].c_str(), NULL, 0) < 0) {
fprintf(stderr, "Error: Failed to create hardware device context for gpu: %s\n", hardware_accelerated_devices[0].c_str());
exit(1);
}
AVBufferRef *frame_context = av_hwframe_ctx_alloc(*device_ctx);
if(!frame_context) {
fprintf(stderr, "Error: Failed to create hwframe context\n");
exit(1);
}
AVHWFramesContext *hw_frame_context = (AVHWFramesContext*)frame_context->data;
hw_frame_context->width = codec_context->width;
hw_frame_context->height = codec_context->height;
hw_frame_context->sw_format = AV_PIX_FMT_0BGR32;
hw_frame_context->format = codec_context->pix_fmt;
hw_frame_context->device_ref = *device_ctx;
hw_frame_context->device_ctx = (AVHWDeviceContext*)(*device_ctx)->data;
if(av_hwframe_ctx_init(frame_context) < 0) {
fprintf(stderr, "Error: Failed to initialize hardware frame context (note: ffmpeg version needs to be > 4.0\n");
exit(1);
}
codec_context->hw_device_ctx = *device_ctx;
codec_context->hw_frames_ctx = frame_context;
ret = avcodec_open2(codec_context, codec, nullptr);
if(ret < 0) {
fprintf(stderr, "Error: Could not open video codec: %s\n", "blabla");//av_err2str(ret));
exit(1);
}
*frame = av_frame_alloc();
if(!*frame) {
fprintf(stderr, "Error: Failed to allocate frame\n");
exit(1);
}
(*frame)->format = codec_context->pix_fmt;
(*frame)->width = codec_context->width;
(*frame)->height = codec_context->height;
AVHWDeviceContext *hw_device_context = (AVHWDeviceContext*)(*device_ctx)->data;
AVCUDADeviceContext *cuda_device_context = (AVCUDADeviceContext*)hw_device_context->hwctx;
CUcontext *cuda_context = &(cuda_device_context->cuda_ctx);
if(!cuda_context) {
fprintf(stderr, "Error: No cuda context\n");
exit(1);
}
CUresult res;
CUcontext old_ctx;
res = cuCtxPopCurrent(&old_ctx);
res = cuCtxPushCurrent(*cuda_context);
res = cuGraphicsGLRegisterImage(cuda_graphics_resource, window_pixmap.target_texture_id, GL_TEXTURE_2D, CU_GRAPHICS_REGISTER_FLAGS_READ_ONLY);
if(res != CUDA_SUCCESS) {
fprintf(stderr, "Error: cuGraphicsGLRegisterImage failed, error %d, texture id: %u\n", res, window_pixmap.target_texture_id);
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);
}
int main(int argc, char **argv) { int main(int argc, char **argv) {
if(argc < 2) { if(argc < 2) {
@ -298,7 +511,7 @@ int main(int argc, char **argv) {
return 1; return 1;
} }
GLFWwindow *window = glfwCreateWindow(1920, 1080, "Hello world", nullptr, nullptr); GLFWwindow *window = glfwCreateWindow(3840, 2160, "Hello world", nullptr, nullptr);
if(!window) { if(!window) {
fprintf(stderr, "Error: Failed to create glfw window\n"); fprintf(stderr, "Error: Failed to create glfw window\n");
glfwTerminate(); glfwTerminate();
@ -321,6 +534,205 @@ int main(int argc, char **argv) {
return 1; return 1;
} }
const char *filename = "test_video.mp4";
// Video start
AVFormatContext *av_format_context;
// The output format is automatically guessed by the file extension
avformat_alloc_output_context2(&av_format_context, nullptr, nullptr, filename);
if(!av_format_context) {
fprintf(stderr, "Error: Failed to deduce output format from file extension .mp4\n");
return 1;
}
AVOutputFormat *output_format = av_format_context->oformat;
AVCodec *video_codec;
AVStream *video_stream = add_stream(av_format_context, &video_codec, output_format->video_codec);
if(!video_stream) {
fprintf(stderr, "Error: Failed to create video stream\n");
return 1;
}
AVFrame *frame;
AVBufferRef *device_ctx;
CUgraphicsResource cuda_graphics_resource;
open_video(video_codec, video_stream, window_pixmap, &frame, &device_ctx, &cuda_graphics_resource);
av_dump_format(av_format_context, 0, filename, 1);
if(!(output_format->flags & AVFMT_NOFILE)) {
int ret = avio_open(&av_format_context->pb, filename, AVIO_FLAG_WRITE);
if(ret < 0) {
fprintf(stderr, "Error: Could not open '%s': %s\n", filename, "blabla");//av_err2str(ret));
return 1;
}
}
int ret = avformat_write_header(av_format_context, nullptr);
if(ret < 0) {
fprintf(stderr, "Error occurred when opening output file: %s\n", "blabla");//av_err2str(ret));
return 1;
}
AVHWDeviceContext *hw_device_context = (AVHWDeviceContext*)device_ctx->data;
AVCUDADeviceContext *cuda_device_context = (AVCUDADeviceContext*)hw_device_context->hwctx;
CUcontext *cuda_context = &(cuda_device_context->cuda_ctx);
if(!cuda_context) {
fprintf(stderr, "Error: No cuda context\n");
exit(1);
}
//av_frame_free(&rgb_frame);
//avcodec_close(av_codec_context);
XSelectInput(dpy, src_window_id, StructureNotifyMask);
int damage_event;
int damage_error;
if(!XDamageQueryExtension(dpy, &damage_event, &damage_error)) {
fprintf(stderr, "Error: XDamage is not supported by your X11 server\n");
return 1;
}
Damage xdamage = XDamageCreate(dpy, src_window_id, XDamageReportNonEmpty);
int frame_count = 0;
FILE *output_file = fopen("video.mp4", "wb");
if(!output_file) {
fprintf(stderr, "Failed to open file!\n");
exit(1);
}
while(!glfwWindowShouldClose(window)) {
glClear(GL_COLOR_BUFFER_BIT);
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);
CUDA_MEMCPY2D memcpy_struct;
memcpy_struct.srcXInBytes = 0;
memcpy_struct.srcY = 0;
memcpy_struct.srcMemoryType = CUmemorytype::CU_MEMORYTYPE_ARRAY;
memcpy_struct.dstXInBytes = 0;
memcpy_struct.dstY = 0;
memcpy_struct.dstMemoryType = CUmemorytype::CU_MEMORYTYPE_DEVICE;
memcpy_struct.srcArray = mapped_array;
memcpy_struct.dstDevice = (CUdeviceptr)frame->data[0];
memcpy_struct.dstPitch = frame->linesize[0];
memcpy_struct.WidthInBytes = frame->width * 4;
memcpy_struct.Height = frame->height;
cuMemcpy2D(&memcpy_struct);
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);
}
#if 0
XEvent e;
while (1) {
XNextEvent(dpy, &e);
if (e.type == ConfigureNotify) {
// Window resize
printf("Resize window!\n");
recreate_window_pixmap(dpy, src_window_id, window_pixmap);
} else if (e.type == damage_event + XDamageNotify) {
printf("Redraw!\n");
XDamageNotifyEvent *de = (XDamageNotifyEvent*)&e;
// de->drawable is the window ID of the damaged window
XserverRegion region = XFixesCreateRegion(dpy, nullptr, 0);
// Subtract all the damage, repairing the window
XDamageSubtract(dpy, de->damage, None, region);
XFixesDestroyRegion(dpy, region);
//glCopyImageSubData(window_pixmap.texture_id, GL_TEXTURE_2D, 0, 0, 0, 0, window_pixmap.dst_texture_id, GL_TEXTURE_2D, 0, 0, 0, 0, window_pixmap.texture_width, window_pixmap.texture_height, 0);
glBindTexture(GL_TEXTURE_2D, window_pixmap.dst_texture_id);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, window_pixmap.texture_width, window_pixmap.texture_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, ff);
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);
}
// 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);
CUDA_MEMCPY2D memcpy_struct;
memcpy_struct.srcXInBytes = 0;
memcpy_struct.srcY = 0;
memcpy_struct.srcMemoryType = CUmemorytype::CU_MEMORYTYPE_ARRAY;
memcpy_struct.dstXInBytes = 0;
memcpy_struct.dstY = 0;
memcpy_struct.dstMemoryType = CUmemorytype::CU_MEMORYTYPE_DEVICE;
memcpy_struct.srcArray = mapped_array;
memcpy_struct.dstDevice = (CUdeviceptr)frame->data[0];
memcpy_struct.dstPitch = frame->linesize[0];
memcpy_struct.WidthInBytes = frame->width * 4;
memcpy_struct.Height = frame->height;
cuMemcpy2D(&memcpy_struct);
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);
}
}
#endif
#if 0
//avcodec_register_all(); //avcodec_register_all();
AVCodec *av_codec = avcodec_find_encoder_by_name("h264_nvenc"); //avcodec_find_encoder(AV_CODEC_ID_H264); AVCodec *av_codec = avcodec_find_encoder_by_name("h264_nvenc"); //avcodec_find_encoder(AV_CODEC_ID_H264);
if(!av_codec) { if(!av_codec) {
@ -549,13 +961,27 @@ int main(int argc, char **argv) {
fprintf(stderr, "Failed to write trailer\n"); fprintf(stderr, "Failed to write trailer\n");
} }
if(av_format_context->pb) close_video(video_stream, frame);
avio_close(av_format_context->pb);
if(!(output_format->fmt & AVFMT_NOFILE))
avio_close(output_format->pb);
avformat_free_context(av_format_context); avformat_free_context(av_format_context);
XDamageDestroy(dpy, xdamage); XDamageDestroy(dpy, xdamage);
av_buffer_unref(&device_ctx); av_buffer_unref(&device_ctx);
avcodec_free_context(&av_codec_context); avcodec_free_context(&av_codec_context);
#else
if(av_write_trailer(av_format_context) != 0) {
fprintf(stderr, "Failed to write trailer\n");
}
close_video(video_stream, frame);
if(!(output_format->flags & AVFMT_NOFILE))
avio_close(av_format_context->pb);
avformat_free_context(av_format_context);
XDamageDestroy(dpy, xdamage);
#endif
cleanup_window_pixmap(dpy, window_pixmap); cleanup_window_pixmap(dpy, window_pixmap);
for(int i = 0; i < screen_count; ++i) { for(int i = 0; i < screen_count; ++i) {
XCompositeUnredirectSubwindows(dpy, RootWindow(dpy, i), CompositeRedirectAutomatic); XCompositeUnredirectSubwindows(dpy, RootWindow(dpy, i), CompositeRedirectAutomatic);