PapaTutuWawa/gpu-screen-recorder
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Use direct capture when possible

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This commit is contained in:
dec05eba 2021-07-29 06:45:55 +02:00
parent 1f71584a77
commit 04d229caf3
3 changed files with 8 additions and 6 deletions
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3
TODO
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@ -4,4 +4,5 @@ Use nvEncoder api directly? maybe with this we could copy the window opengl text
Right now we are required to copy the opengl texture to another opengl texture first. Right now we are required to copy the opengl texture to another opengl texture first.
Load cuda at runtime with dlopen. Load cuda at runtime with dlopen.
Track window damages and only update then. That is better for output file size. Track window damages and only update then. That is better for output file size.
Remove cuda to cuda copy when using nvFBC if possible. ffmpeg is getting in the way. Remove cuda to cuda copy when using nvFBC if possible. ffmpeg is getting in the way.
Use av_fifo.

5
include/NvFBCLibrary.hpp
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@ -122,7 +122,7 @@ public:
memset(&create_capture_params, 0, sizeof(create_capture_params)); memset(&create_capture_params, 0, sizeof(create_capture_params));
create_capture_params.dwVersion = NVFBC_CREATE_CAPTURE_SESSION_PARAMS_VER; create_capture_params.dwVersion = NVFBC_CREATE_CAPTURE_SESSION_PARAMS_VER;
create_capture_params.eCaptureType = NVFBC_CAPTURE_SHARED_CUDA; create_capture_params.eCaptureType = NVFBC_CAPTURE_SHARED_CUDA;
create_capture_params.bWithCursor = NVFBC_TRUE; // This will need to be disabled when using bAllowDirectCapture create_capture_params.bWithCursor = NVFBC_FALSE;
if(capture_region) { if(capture_region) {
create_capture_params.captureBox = { x, y, width, height }; create_capture_params.captureBox = { x, y, width, height };
*display_width = width; *display_width = width;
@ -130,10 +130,11 @@ public:
} }
create_capture_params.eTrackingType = tracking_type; create_capture_params.eTrackingType = tracking_type;
//create_capture_params.dwSamplingRateMs = 1000 / fps; //create_capture_params.dwSamplingRateMs = 1000 / fps;
create_capture_params.bAllowDirectCapture = NVFBC_TRUE;
create_capture_params.bPushModel = NVFBC_TRUE;
if(tracking_type == NVFBC_TRACKING_OUTPUT) if(tracking_type == NVFBC_TRACKING_OUTPUT)
create_capture_params.dwOutputId = output_id; create_capture_params.dwOutputId = output_id;
// TODO: Use create_capture_params.bAllowDirectCapture and create_capture_params.bPushModel
status = nv_fbc_function_list.nvFBCCreateCaptureSession(nv_fbc_handle, &create_capture_params); status = nv_fbc_function_list.nvFBCCreateCaptureSession(nv_fbc_handle, &create_capture_params);
if(status != NVFBC_SUCCESS) { if(status != NVFBC_SUCCESS) {
fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle)); fprintf(stderr, "Error: %s\n", nv_fbc_function_list.nvFBCGetLastErrorStr(nv_fbc_handle));

6
src/main.cpp
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@ -611,7 +611,7 @@ static void usage() {
fprintf(stderr, " -w Window to record or a display or \"screen\". The display is the display name in xrandr and if \"screen\" is selected then all displays are recorded and they are recorded in h265 (aka hevc). Recording a display requires a gpu with NvFBC support.\n"); fprintf(stderr, " -w Window to record or a display or \"screen\". The display is the display name in xrandr and if \"screen\" is selected then all displays are recorded and they are recorded in h265 (aka hevc). Recording a display requires a gpu with NvFBC support.\n");
//fprintf(stderr, " -s The screen region to capture in format WxH+X+Y. This is only applicable when -w is a display or \"screen\". Optional, the entire window/display/screen is recorded by default.\n"); //fprintf(stderr, " -s The screen region to capture in format WxH+X+Y. This is only applicable when -w is a display or \"screen\". Optional, the entire window/display/screen is recorded by default.\n");
fprintf(stderr, " -c Container format for output file, for example mp4, or flv.\n"); fprintf(stderr, " -c Container format for output file, for example mp4, or flv.\n");
fprintf(stderr, " -f Framerate to record at. Clamped to [1,500].\n"); fprintf(stderr, " -f Framerate to record at. Clamped to [1,250].\n");
fprintf(stderr, " -a Audio device to record from (pulse audio device). Optional, disabled by default.\n"); fprintf(stderr, " -a Audio device to record from (pulse audio device). Optional, disabled by default.\n");
fprintf(stderr, " -q Video quality. Should either be 'medium', 'high' or 'ultra'. Optional, set to 'medium' be default.\n"); fprintf(stderr, " -q Video quality. Should either be 'medium', 'high' or 'ultra'. Optional, set to 'medium' be default.\n");
fprintf(stderr, " -r Replay buffer size in seconds. If this is set, then only the last seconds as set by this option will be stored" fprintf(stderr, " -r Replay buffer size in seconds. If this is set, then only the last seconds as set by this option will be stored"
@ -705,8 +705,8 @@ int main(int argc, char **argv) {
fprintf(stderr, "Invalid fps argument: %s\n", args["-f"].value); fprintf(stderr, "Invalid fps argument: %s\n", args["-f"].value);
return 1; return 1;
} }
if(fps > 500) if(fps > 250)
fps = 500; fps = 250;
const char *quality_str = args["-q"].value; const char *quality_str = args["-q"].value;
if(!quality_str) if(!quality_str)