luis-zepeda
commented
4 years ago I have the same issue, when I use an external microphone and record separate audio file, the audio speeds up
Open taooceros opened 4 years ago
luis-zepeda
commented
4 years ago I have the same issue, when I use an external microphone and record separate audio file, the audio speeds up
TheBelgianNomad
commented
4 years ago I've had the same problem with video sped up (I don't record audio), with many different FPS. If I record at 30 FPS to import in a 30 FPS sequence, the video is sped up and I have to stretch it to try and match the actual length, which I have to guess (from my tests, the video is about 51 seconds long if I record for 1 minute at 30 FPS). After many trials and errors, I've found that what works best for me (Photoshop and Lightroom screencasts) is to record at 20 fps, which keeps the correct recording length. Then I add it to a 24 or 30 FPS sequence in Premiere Pro, WITHOUT interpreting the recording to match the sequence FPS. That way, the recording length is ok, and the video is smooth, even the moving cursor. I know it doesn't correct the underlying bug, but I hope that helps.
Describe the bug I don't know why I am getting the screen recording file which has been speeded up. This doesn't make the video too strange but make my voice recording weird. This also leads to the loss of some sound in audio.
To Reproduce Steps to reproduce the behavior: I don't know how to reproduce since I even cannot know how to make it used regularly. I use GDI instead of desktopduplication due to the black screen issues of recording words. I record a second screen with the screen selection feature.
Expected behavior The video is the same speed as recording.
Desktop (please complete the following information):
Additional context Add any other context about the problem here like FFmpeg Log or error messages. ARGS:
-thread_queue_size 512 -framerate 60 -f rawvideo -pix_fmt rgb32 -video_size 2560x1440 -i \.\pipe\captura-3e41e774-4cff-4ea9-910f-d03e36923bd5 -thread_queue_size 512 -f s16le -acodec pcm_s16le -ar 44100 -ac 2 -i \.\pipe\captura-530c9790-f38d-44b5-8256-f23647c6ecb0 -r 60 -vcodec hevc_qsv -load_plugin hevc_hw -q 2 -preset:v veryfast -c:a aac -strict -2 -b:a 512k "D:\Document\Captura\2020-04-27/23-44-59.mp4"
OUTPUT:
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20200122 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt libavutil 56. 31.100 / 56. 31.100 libavcodec 58. 54.100 / 58. 54.100 libavformat 58. 29.100 / 58. 29.100 libavdevice 58. 8.100 / 58. 8.100 libavfilter 7. 57.100 / 7. 57.100 libswscale 5. 5.100 / 5. 5.100 libswresample 3. 5.100 / 3. 5.100 libpostproc 55. 5.100 / 55. 5.100 Input #0, rawvideo, from '\.\pipe\captura-3e41e774-4cff-4ea9-910f-d03e36923bd5': Duration: N/A, start: 0.000000, bitrate: 7077888 kb/s Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 2560x1440, 7077888 kb/s, 60 tbr, 60 tbn, 60 tbc Guessed Channel Layout for Input Stream #1.0 : stereo Input #1, s16le, from '\.\pipe\captura-530c9790-f38d-44b5-8256-f23647c6ecb0': Duration: N/A, bitrate: 1411 kb/s Stream #1:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> hevc (hevc_qsv)) Stream #1:0 -> #0:1 (pcm_s16le (native) -> aac (native)) Press [q] to stop, [?] for help Output #0, mp4, to 'D:\Document\Captura\2020-04-27/23-44-59.mp4': Metadata: encoder : Lavf58.29.100 Stream #0:0: Video: hevc (hevc_qsv) (hev1 / 0x31766568), nv12(progressive), 2560x1440, q=2-31, 1000 kb/s, 60 fps, 15360 tbn, 60 tbc Metadata: encoder : Lavc58.54.100 hevc_qsv Side data: cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 512 kb/s Metadata: encoder : Lavc58.54.100 aac frame= 1 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
frame= 15 fps= 15 q=-0.0 size= 256kB time=00:00:00.00 bitrate=N/A speed= 0x
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frame= 1159 fps= 21 q=-0.0 Lsize= 3999kB time=00:00:19.23 bitrate=1703.1kbits/s speed=0.341x
video:3121kB audio:845kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.815964% [aac @ 000001636f05f400] Qavg: 236.000