Audio out of sync after encode vfr - Printable Version +- Selur's Little Message Board (https://forum.selur.net) +-- Forum: Hybrid - Support (https://forum.selur.net/forum-1.html) +--- Forum: Problems & Questions (https://forum.selur.net/forum-3.html) +--- Thread: Audio out of sync after encode vfr (/thread-2809.html)

Audio out of sync after encode vfr - Persian - 19.06.2022 I have some movies in variable frame rate mode. When I encode it, the audio and the video are out of sync. I tried the following methods but they did not work. 1. Enabling: "Config->Automation->On Load->Always extract time codes from input" 2. Enabling: "Config->Internals->Prefer Original->Frame rate" How can I fix this problem? RE: Audio out of sync after encode vfr - Selur - 19.06.2022 Note that "Config->Internals->Prefer Original->Frame rate" should normally not be enabled on vfr content if you plan to keep the vfr info. If your source is a dvd extracted by MakeMKV or similar try: Enabling Config->Internals->Handling->Ignore all input time codes Enabling Config->Internals->Prefer Original->Frame rate" If your source is something else, try: Enabling Config->Internals->Prefer Original->Frame rate" in case the stream frame rate is the frame rate you aim for Enabling Config->Input->Decoding->CFR output If your content has broken headers or similar Hybrid can't properly deal with it. Thats all I can think of with the information you gave. Cu Selur RE: Audio out of sync after encode vfr - Persian - 20.06.2022 The problem was not resolved. This is one of my files that I have a problem with it. If you can, please check it. https://fr12.uploadboy.com/d/9bh8wgfkwo8f/q5nnic7qjc4vtfwhhautptgzwqxbegsybyz7onpevf6m3iiv34kl4guyrsurbbzmq4idvtc5/S19E01.zip RE: Audio out of sync after encode vfr - Selur - 20.06.2022 got the file doing some test encodes to reproduce the issue. RE: Audio out of sync after encode vfr - Selur - 20.06.2022 A simple remux to .mp4 of the file creates an unplayable file if MP4Box is used. :/ Remuxing to .mp4 with ffmpeg (Config->Container->Mp4 Settings->FFmpeg instead of MP4Box) as muxer creates a playable synch but laggy output. When enabling 'Always extract time codes from input' Hybrid reports: Adjusting frame count (70500) to time code entry count (70993). which could be troublesome. When enabling 'Always extract time codes from input' and remuxing to .mp4 with MP4Box, the muxing process crashes. When enabling 'Always extract time codes from input' and remuxing to .mp4 with FFmpeg, the muxing process finishes and the output is sync. Playing the file with ffplay one can see: [h264 @ 0000020b0e6034c0] mmco: unref short failureq= 0B f=0/0 [h264 @ 0000020b0e6034c0] reference picture missing during reorder [h264 @ 0000020b0e6034c0] Missing reference picture, default is 65695 [h264 @ 0000020b0e6038c0] mmco: unref short failureq= 0B f=0/0 [h264 @ 0000020b0eb4c480] Increasing reorder buffer to 2 0B f=0/0 [h264 @ 0000020b0e32c0c0] mmco: unref short failureq= 0B f=0/0 [h264 @ 0000020b0e52fc80] Increasing reorder buffer to 3 0B f=0/0 Also during playback I sometimes see: number of reference frames (0+5) exceeds max (4; probably corrupt input), discarding one When calling: ffmpeg -i c:\Users\Selur\Desktop\Grand.Designs.S19E01.1080p.HDTV.H264-LiNKLE.mkv -f null NUL to look for decoder issues, ffmpeg outputs: ffmpeg version N-106510-g3688b4a604-g21ca221068+1 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 11.2.0 (Rev10, Built by MSYS2 project) configuration: --pkg-config=pkgconf --cc='ccache gcc' --cxx='ccache g++' --ld='ccache g++' --disable-autodetect --enable-amf --enable-bzlib --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-iconv --enable-lzma --enable-nvenc --enable-zlib --enable-sdl2 --enable-ffnvcodec --enable-nvdec --enable-cuda-llvm --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libdav1d --enable-libaom --disable-debug --enable-fontconfig --enable-libass --enable-libbluray --enable-libfreetype --enable-libmfx --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libwebp --enable-libxml2 --enable-libzimg --enable-libshine --enable-gpl --enable-avisynth --enable-libxvid --enable-libopenmpt --enable-version3 --enable-librav1e --enable-libsrt --enable-libgsm --enable-libvmaf --enable-libsvtav1 --enable-mbedtls --extra-cflags=-DLIBTWOLAME_STATIC --extra-libs=-lstdc++ --extra-cflags=-DLIBXML_STATIC --extra-libs=-liconv --disable-w32threads libavutil 57. 24.101 / 57. 24.101 libavcodec 59. 25.100 / 59. 25.100 libavformat 59. 20.101 / 59. 20.101 libavdevice 59. 6.100 / 59. 6.100 libavfilter 8. 30.100 / 8. 30.100 libswscale 6. 6.100 / 6. 6.100 libswresample 4. 6.100 / 4. 6.100 libpostproc 56. 5.100 / 56. 5.100 Input #0, matroska,webm, from 'c:\Users\Selur\Desktop\Grand.Designs.S19E01.1080p.HDTV.H264-LiNKLE.mkv': Metadata: encoder : no variable data Duration: 00:47:00.01, start: 0.000000, bitrate: 4812 kb/s Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn (default) Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp (default) Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native)) Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help Output #0, null, to 'NUL': Metadata: encoder : Lavf59.20.101 Stream #0:0(eng): Video: wrapped_avframe, yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn (default) Metadata: encoder : Lavc59.25.100 wrapped_avframe Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: encoder : Lavc59.25.100 pcm_s16le [h264 @ 000001411f55b040] mmco: unref short failure5 bitrate=N/A speed=28.4x [h264 @ 000001411f55b040] reference picture missing during reorder [h264 @ 000001411f55b040] Missing reference picture, default is 65695 [h264 @ 000001411f55ba00] mmco: unref short failure [h264 @ 000001411e3da340] Increasing reorder buffer to 2 [h264 @ 000001411e412780] mmco: unref short failure [h264 @ 000001411e413b80] Increasing reorder buffer to 3 [h264 @ 000001411e412b80] mmco: unref short failure9 bitrate=N/A speed=31.2x [h264 @ 000001411e412b80] reference picture missing during reorder [h264 @ 000001411e412b80] Missing reference picture, default is 65325 [h264 @ 000001411e411b80] mmco: unref short failure [h264 @ 000001411e411b80] co located POCs unavailable [h264 @ 000001411e413b80] co located POCs unavailable [h264 @ 000001411f55ba00] reference picture missing during reorder [h264 @ 000001411f55ba00] Missing reference picture, default is 65324 [h264 @ 000001411e5f0380] mmco: unref short failure [null @ 000001411e9e7300] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 21890 >= 21656 [null @ 000001411e9e7300] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 21890 >= 21657 [null @ 000001411e9e7300] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 21895 >= 21658 [h264 @ 000001411e3da340] mmco: unref short failure1 bitrate=N/A speed=29.6x [h264 @ 000001411e3da340] reference picture missing during reorder [h264 @ 000001411e3da340] Missing reference picture, default is 65630 [h264 @ 000001411e9eaa00] mmco: unref short failure [h264 @ 000001411e9eaa00] co located POCs unavailable [h264 @ 000001411e308600] co located POCs unavailable [h264 @ 000001411e413b80] reference picture missing during reorder [h264 @ 000001411e413b80] Missing reference picture, default is 65629 [h264 @ 000001411e412f80] mmco: unref short failure [h264 @ 000001411e411b80] mmco: unref short failure0 bitrate=N/A speed=29.5x [h264 @ 000001411e411b80] reference picture missing during reorder [h264 @ 000001411e411b80] Missing reference picture, default is 65386 [h264 @ 000001411e413b80] mmco: unref short failure [h264 @ 000001411e413b80] co located POCs unavailable [h264 @ 000001411e412f80] co located POCs unavailable [h264 @ 000001411e5f0380] reference picture missing during reorder [h264 @ 000001411e5f0380] Missing reference picture, default is 65385 [h264 @ 000001411e3da340] mmco: unref short failure [null @ 000001411e9e7300] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 52456 >= 52282 [null @ 000001411e9e7300] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 52459 >= 52283 c:\Users\Selur\Desktop\Grand.Designs.S19E01.1080p.HDTV.H264-LiNKLE.mkv: corrupt decoded frame in stream 0 Last message repeated 6 times c:\Users\Selur\Desktop\Grand.Designs.S19E01.1080p.HDTV.H264-LiNKLE.mkv: corrupt decoded frame in stream 0 Last message repeated 23 times c:\Users\Selur\Desktop\Grand.Designs.S19E01.1080p.HDTV.H264-LiNKLE.mkv: corrupt decoded frame in stream 0 Last message repeated 26 times c:\Users\Selur\Desktop\Grand.Designs.S19E01.1080p.HDTV.H264-LiNKLE.mkv: corrupt decoded frame in stream 0 frame=70089 fps=729 q=-0.0 Lsize=N/A time=00:47:00.00 bitrate=N/A speed=29.3x video:32307kB audio:528752kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown If this was a transport stream I would say there were some transmisson problems and running something like tsDoctor might help. Since it's an mkv: Was this stream cut by change somehow? When enabling 'Always extract time codes from input', reencoding to x264 and muxing to .mp4 with FFmpeg, the muxed output is async. Problem is that the issues shown during decoding, will cause issues on reencoding and since Hybrid (unlike Handbrake or most FFMpeg based tools for example) doesn't process Audio&Video with the same tool at the same time additional sync compensation on broken streams isn't possible. Looking at the Input with Vapoursynth + DGDecNV or LWLibAVSource there are 70500 frames undind FFmpegSource2 there are 70499, which conflicts with the number or time codes,... Sorry, to say this, but Hybrid isn't really made to handle files with such errors in it. You best bet is using some FFMpeg based tool for reencoding which does av-processing in one FFmpeg call. That said, here's how I got a sync output, but which shows some artifacts when the decoding fails: enable 'Config->Automation->Always extract time codes from input' enable 'Filtering->Vapoursynth->Misc->Script->Always use Vapoursynth' disable 'Filtering->Vapoursynth->Misc->Source->Prefer LWLibAVSource over FFmpegSource2' enable 'Config->Container->Mp4 Settings->FFmpeg instead of MP4Box' (might not be necessary, ) Cu Selur RE: Audio out of sync after encode vfr - Persian - 20.06.2022 Thank you for your help. Let's see what I can do.