Recording delay

[anweiss]

On some instances, even after Chronicler indicates that the recording has started, there seems to be a lag until the actual recording begins. In that, the first second or two are missing.

[arciisine]

If you can, please run npx @arcsine/screen-recorder test.mp4 from the command line, and the output should help identify the problem. This is what the extension ultimately calls so the issue may lie there or with ffmpeg

[anweiss]

Thanks. Output from command below:

❯ npx @arcsine/screen-recorder test.mp4
/opt/homebrew/bin/ffmpeg -f avfoundation -list_devices true -i ""
Invalid exit status: 1
/opt/homebrew/bin/ffmpeg -capture_cursor 1 -threads 4 -f avfoundation -i 3:none -preset ultrafast -crf 10 -pix_fmt yuvj444p -c:v libx264 -y  -vf 'scale=3840:1600:flags=lanczos,crop=1920:787:0:25' test.mp4
Recording for 5 seconds...
ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
  built with Apple clang version 14.0.0 (clang-1400.0.29.202)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1.2_4 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
  libavutil      57. 28.100 / 57. 28.100
libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
objc[95841]: class `NSKVONotifying_AVCaptureScreenInput' not linked into application
objc[95841]: class `NSKVONotifying_AVCaptureScreenInput' not linked into application
objc[95841]: class `NSKVONotifying_AVCaptureScreenInput' not linked into application
[AVFoundation indev @ 0x131e34960] Configuration of video device failed, falling back to default.
[avfoundation @ 0x131e345f0] Selected pixel format (yuv420p) is not supported by the input device.
[avfoundation @ 0x131e345f0] Supported pixel formats:
[avfoundation @ 0x131e345f0]   uyvy422
[avfoundation @ 0x131e345f0]   yuyv422
[avfoundation @ 0x131e345f0]   nv12
[avfoundation @ 0x131e345f0]   0rgb
[avfoundation @ 0x131e345f0]   bgr0
[avfoundation @ 0x131e345f0] Overriding selected pixel format to use uyvy422 instead.
[avfoundation @ 0x131e345f0] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, avfoundation, from '3:none':
  Duration: N/A, start: 79064.891333, bitrate: N/A
  Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 3840x1600, 1000k tbr, 1000k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[swscaler @ 0x128008000] [swscaler @ 0x128018000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x1280b8000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x128038000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x128058000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x128148000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x128100000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x128110000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x1180b0000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x128008000] [swscaler @ 0x1380a8000] deprecated pixel format used, make sure you did set range correctly
[mp4 @ 0x131e5c8a0] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or setting vsync/fps_mode to vfr
[libx264 @ 0x131e0f4d0] MB rate (6000000000) > level limit (16711680)
[libx264 @ 0x131e0f4d0] using cpu capabilities: ARMv8 NEON
[libx264 @ 0x131e0f4d0] profile High 4:4:4 Predictive, level 6.2, 4:4:4, 8-bit
[libx264 @ 0x131e0f4d0] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=6 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=10.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'test.mp4':
  Metadata:
    encoder         : Lavf59.27.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuvj444p(pc, progressive), 1920x787, q=2-31, 1000k fps, 1000k tbn
    Metadata:
      encoder         : Lavc59.37.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=    1 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=N/A
More than 1000 frames duplicated
Done

[arciisine]

And just to follow up, did the video produced by this exhibit the same delay in recording?

…

On Fri, Feb 17, 2023 at 12:06 PM anweiss ***@***.***> wrote: Thanks. Output from command below: ❯ npx @arcsine/screen-recorder test.mp4 /opt/homebrew/bin/ffmpeg -f avfoundation -list_devices true -i "" Invalid exit status: 1 /opt/homebrew/bin/ffmpeg -capture_cursor 1 -threads 4 -f avfoundation -i 3:none -preset ultrafast -crf 10 -pix_fmt yuvj444p -c:v libx264 -y -vf 'scale=3840:1600:flags=lanczos,crop=1920:787:0:25' test.mp4 Recording for 5 seconds... ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers built with Apple clang version 14.0.0 (clang-1400.0.29.202) configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1.2_4 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon libavutil 57. 28.100 / 57. 28.100 libavcodec 59. 37.100 / 59. 37.100 libavformat 59. 27.100 / 59. 27.100 libavdevice 59. 7.100 / 59. 7.100 libavfilter 8. 44.100 / 8. 44.100 libswscale 6. 7.100 / 6. 7.100 libswresample 4. 7.100 / 4. 7.100 libpostproc 56. 6.100 / 56. 6.100 objc[95841]: class `NSKVONotifying_AVCaptureScreenInput' not linked into application objc[95841]: class `NSKVONotifying_AVCaptureScreenInput' not linked into application objc[95841]: class `NSKVONotifying_AVCaptureScreenInput' not linked into application [AVFoundation indev @ 0x131e34960] Configuration of video device failed, falling back to default. [avfoundation @ 0x131e345f0] Selected pixel format (yuv420p) is not supported by the input device. [avfoundation @ 0x131e345f0] Supported pixel formats: [avfoundation @ 0x131e345f0] uyvy422 [avfoundation @ 0x131e345f0] yuyv422 [avfoundation @ 0x131e345f0] nv12 [avfoundation @ 0x131e345f0] 0rgb [avfoundation @ 0x131e345f0] bgr0 [avfoundation @ 0x131e345f0] Overriding selected pixel format to use uyvy422 instead. [avfoundation @ 0x131e345f0] Stream #0: not enough frames to estimate rate; consider increasing probesize Input #0, avfoundation, from '3:none': Duration: N/A, start: 79064.891333, bitrate: N/A Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 3840x1600, 1000k tbr, 1000k tbn Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264)) Press [q] to stop, [?] for help [swscaler @ 0x128008000] [swscaler @ 0x128018000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x1280b8000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x128038000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x128058000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x128148000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x128100000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x128110000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x1180b0000] deprecated pixel format used, make sure you did set range correctly [swscaler @ 0x128008000] [swscaler @ 0x1380a8000] deprecated pixel format used, make sure you did set range correctly [mp4 @ 0x131e5c8a0] Frame rate very high for a muxer not efficiently supporting it. Please consider specifying a lower framerate, a different muxer or setting vsync/fps_mode to vfr [libx264 @ 0x131e0f4d0] MB rate (6000000000) > level limit (16711680) [libx264 @ 0x131e0f4d0] using cpu capabilities: ARMv8 NEON [libx264 @ 0x131e0f4d0] profile High 4:4:4 Predictive, level 6.2, 4:4:4, 8-bit [libx264 @ 0x131e0f4d0] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=6 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=10.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0 Output #0, mp4, to 'test.mp4': Metadata: encoder : Lavf59.27.100 Stream #0:0: Video: h264 (avc1 / 0x31637661), yuvj444p(pc, progressive), 1920x787, q=2-31, 1000k fps, 1000k tbn Metadata: encoder : Lavc59.37.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 1 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed=N/A More than 1000 frames duplicated Done — Reply to this email directly, view it on GitHub <#40 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJUUL7F3WXUWX66MC23RD3WX6V2HANCNFSM6AAAAAAU6N4YYA> . 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