diff options
| -rw-r--r-- | TODO | 7 | ||||
| -rw-r--r-- | src/main.cpp | 20 |
2 files changed, 19 insertions, 8 deletions
@@ -156,9 +156,6 @@ Restart replay/update video resolution if monitor resolution changes. Fix pure vaapi copy on intel. -ffmpeg supports vulkan encoding now (h264!). Doesn't work on amd yet because mesa is missing VK_KHR_video_maintenance1, see https://gitlab.freedesktop.org/mesa/mesa/-/issues/11857. Test on nvidia! - -Test vaapi low latency mode (setenv("AMD_DEBUG", "lowlatencyenc", true);), added in mesa 24.1.4, released on july 17, 2024. Note that this forces gpu power usage to max at all times, even when recording at 2 fps. Use nvidia low latency options for better encoding times. Test ideal async_depth value. Increasing async_depth also increased gpu memory usage a lot (from 100mb to 500mb when moving from async_depth 2 to 16) at 4k resolution. Setting it to 8 increases it by 200mb which might be ok. @@ -179,4 +176,6 @@ Always use direct capture with NvFBC once the capture issue in mpv fullscreen ha Support ROI (AV_FRAME_DATA_REGIONS_OF_INTEREST). -Default to hevc if capture size is larger than 4096 in width or height.
\ No newline at end of file +Default to hevc if capture size is larger than 4096 in width or height. + +Set low latency mode on vulkan encoding.
\ No newline at end of file diff --git a/src/main.cpp b/src/main.cpp index f64450c..4706c9b 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -810,10 +810,9 @@ static void open_video_software(AVCodecContext *codec_context, VideoQuality vide if(bitrate_mode == BitrateMode::QP) video_software_set_qp(codec_context, video_quality, hdr, &options); - av_dict_set(&options, "preset", "medium", 0); + av_dict_set(&options, "preset", "fast", 0); dict_set_profile(codec_context, GSR_GPU_VENDOR_INTEL, color_depth, &options); - // TODO: If streaming or piping output set this to zerolatency - av_dict_set(&options, "tune", "fastdecode", 0); + av_dict_set(&options, "tune", "zerolatency", 0); if(codec_context->codec_id == AV_CODEC_ID_H264) { av_dict_set(&options, "coder", "cabac", 0); // TODO: cavlc is faster than cabac but worse compression. Which to use? @@ -990,6 +989,14 @@ static void open_video_hardware(AVCodecContext *codec_context, VideoQuality vide // TODO: Enable multipass if(vendor == GSR_GPU_VENDOR_NVIDIA) { + // TODO: Test these, if they are needed, if they should be used + // av_dict_set_int(&options, "zerolatency", 1, 0); + // if(codec_context->codec_id == AV_CODEC_ID_AV1) { + // av_dict_set(&options, "tune", "ll", 0); + // } else if(codec_context->codec_id == AV_CODEC_ID_H264 || codec_context->codec_id == AV_CODEC_ID_HEVC) { + // av_dict_set(&options, "preset", "llhq", 0); + // av_dict_set(&options, "tune", "ll", 0); + // } av_dict_set(&options, "tune", "hq", 0); dict_set_profile(codec_context, vendor, color_depth, &options); @@ -2600,6 +2607,11 @@ int main(int argc, char **argv) { // If this is set to 1 then cuGraphicsGLRegisterImage will fail for egl context with error: invalid OpenGL or DirectX context, // so we overwrite it setenv("__GL_THREADED_OPTIMIZATIONS", "0", true); + // Forces low latency encoding mode. Use this environment variable until vaapi supports setting this as a parameter. + // The downside of this is that it always uses maximum power, which is not ideal for replay mode that runs on system startup. + // This option was added in mesa 24.1.4, released on july 17, 2024. + // TODO: Add an option to enable/disable this? + setenv("AMD_DEBUG", "lowlatencyenc", true); // Some people set this to nvidia (for nvdec) or vdpau (for nvidia vdpau), which breaks gpu screen recorder since // nvidia doesn't support vaapi and nvidia-vaapi-driver doesn't support encoding yet. // Let vaapi find the match vaapi driver instead of forcing a specific one. @@ -3795,7 +3807,7 @@ int main(int argc, char **argv) { av_usleep(time_to_next_frame * 1000.0 * 1000.0); else { if(paused) - av_usleep(20.0 * 1000.0); // 10 milliseconds + av_usleep(20.0 * 1000.0); // 20 milliseconds else if(frame_deadline_missed) {} else if(framerate_mode == FramerateMode::CONTENT || !frame_captured) |