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-rw-r--r--src/main.cpp466
1 files changed, 446 insertions, 20 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 28fa725..afe1e0f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,5 +1,6 @@
#include <stdio.h>
#include <stdlib.h>
+#include <assert.h>
#include <string>
#include <vector>
@@ -38,18 +39,17 @@ struct ScopedGLXFBConfig {
};
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;
GLXPixmap glx_pixmap;
GLuint texture_id;
+ GLuint target_texture_id;
GLint texture_width;
GLint texture_height;
-
- GLuint dst_texture_id;
};
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) {
+ if(pixmap.target_texture_id) {
+ glDeleteTextures(1, &pixmap.target_texture_id);
+ pixmap.target_texture_id = 0;
+ }
+
if(pixmap.texture_id) {
glDeleteTextures(1, &pixmap.texture_id);
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_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
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_Y_INVERTED_EXT, (int)GLX_DONT_CARE,
+ //GLX_Y_INVERTED_EXT, (int)GLX_DONT_CARE,
None
};
const int pixmap_attribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
- GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGB_EXT,
- GLX_MIPMAP_TEXTURE_EXT, 0,
+ GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
+ GLX_MIPMAP_TEXTURE_EXT, 1,
None
};
@@ -134,12 +139,42 @@ static bool recreate_window_pixmap(Display *dpy, Window window_id, WindowPixmap
//glEnable(GL_BLEND);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
+#if 1
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_HEIGHT, &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);
//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_T, GL_CLAMP_TO_EDGE );
+
+
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);
glBindTexture(GL_TEXTURE_2D, 0);
-
- glGenTextures(1, &pixmap.dst_texture_id);
- 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;
+ return pixmap.texture_id != 0 && pixmap.target_texture_id != 0;
}
std::vector<std::string> get_hardware_acceleration_device_names() {
- #if 1
+ #if 0
std::vector<std::string> result;
cl_uint platform_count = 0;
@@ -219,6 +250,7 @@ static inline double ToDouble(const AVRational& r) {
return (double) r.num / (double) r.den;
}
+#if 0
static void receive_frames(AVCodecContext *av_codec_context, AVStream *stream, AVFormatContext *av_format_context) {
for( ; ; ) {
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);
}
+#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) {
if(argc < 2) {
@@ -298,7 +511,7 @@ int main(int argc, char **argv) {
return 1;
}
- GLFWwindow *window = glfwCreateWindow(1920, 1080, "Hello world", nullptr, nullptr);
+ GLFWwindow *window = glfwCreateWindow(3840, 2160, "Hello world", nullptr, nullptr);
if(!window) {
fprintf(stderr, "Error: Failed to create glfw window\n");
glfwTerminate();
@@ -321,6 +534,205 @@ int main(int argc, char **argv) {
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 *av_codec = avcodec_find_encoder_by_name("h264_nvenc"); //avcodec_find_encoder(AV_CODEC_ID_H264);
if(!av_codec) {
@@ -549,13 +961,27 @@ int main(int argc, char **argv) {
fprintf(stderr, "Failed to write trailer\n");
}
- if(av_format_context->pb)
- avio_close(av_format_context->pb);
+ close_video(video_stream, frame);
+
+ if(!(output_format->fmt & AVFMT_NOFILE))
+ avio_close(output_format->pb);
avformat_free_context(av_format_context);
XDamageDestroy(dpy, xdamage);
av_buffer_unref(&device_ctx);
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);
for(int i = 0; i < screen_count; ++i) {
XCompositeUnredirectSubwindows(dpy, RootWindow(dpy, i), CompositeRedirectAutomatic);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 18:09:28 +0000