[FFmpeg-trac] #11402(undetermined:new): opus file generated by ffmpeg cannot be decoded with opus-tools

[FFmpeg]

#11402: opus file generated by ffmpeg cannot be decoded with opus-tools
--------------------------------------+----------------------------------
             Reporter:  Saafo         |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  7.1
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+----------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 % ffmpeg -i audio.mp4 audio.opus
 opusinfo audio.opus
 }}}

 The generated `audio.opus` cannot be decoded with `opusdec` provided by
 `opus-tools`(version: 0.2)
 {{{
 % opusdec audio.opus
 Failed to open 'audio.opus'.
 }}}

 Debugging with `opusfile`(underlying `opusdec`), the error is
 `OP_EBADTIMESTAMP`(The first or last granule position of a link failed
 basic validity checks.)

 And with `opusinfo` provided by `opus-tools`, there are many warnings:

 {{{
 % opusinfo audio.opus
 Processing file "audio.opus"...

 New logical stream (#1, serial: 445700f2): type opus
 Encoded with Lavf61.7.100
 User comments section follows...
         language=und
         handler_name=SoundHandler
         vendor_id=[0][0][0][0]
         encoder=Lavc61.19.100 libopus
         major_brand=isom
         minor_version=512
         compatible_brands=isomiso2mp41
 WARNING: Samples with negative granpos in stream 1
 WARNING: Sample count ahead of granule (96960>96955) in stream 1
 WARNING: Sample count ahead of granule (145920>145907) in stream 1
 WARNING: Sample count ahead of granule (194880>194857) in stream 1
 WARNING: Sample count ahead of granule (243840>243807) in stream 1
 WARNING: Sample count behind granule (291840<291843) in stream 1
 WARNING: Sample count ahead of granule (340800>340796) in stream 1
 (SKIP MANY WARNINGS)
 WARNING: Sample count behind granule (14234880<14234888) in stream 1
 WARNING: Sample count behind granule (14282880<14282903) in stream 1
 WARNING: Sample count behind granule (14331840<14331861) in stream 1
 WARNING: Sample count behind granule (14380800<14380814) in stream 1
 Opus stream 1:
         Pre-skip: 312
         Playback gain: 0 dB
         Channels: 1
         Original sample rate: 48000 Hz
         Packet duration:   20.0ms (max),   20.0ms (avg),   20.0ms (min)
         Page duration:   1020.0ms (max), 1015.3ms (avg),  920.0ms (min)
         Total data length: 2022632 bytes (overhead: 1.15%)
         Playback length: 5m:00.501s
         Average bitrate: 53.85 kbit/s, w/o overhead: 53.23 kbit/s
 Logical stream 1 ended
 }}}

 ffmpeg info:

 {{{
 % ffmpeg version
 ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers
   built with Apple clang version 16.0.0 (clang-1600.0.26.4)
   configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.1_3 --enable-
 shared --enable-pthreads --enable-version3 --cc=clang --host-cflags=
 --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-
 gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-
 libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame
 --enable-libopus --enable-librav1e --enable-librist --enable-librubberband
 --enable-libsnappy --enable-libsrt --enable-libssh --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-audiotoolbox --enable-neon
   libavutil      59. 39.100 / 59. 39.100
   libavcodec     61. 19.100 / 61. 19.100
   libavformat    61.  7.100 / 61.  7.100
   libavdevice    61.  3.100 / 61.  3.100
   libavfilter    10.  4.100 / 10.  4.100
   libswscale      8.  3.100 /  8.  3.100
   libswresample   5.  3.100 /  5.  3.100
   libpostproc    58.  3.100 / 58.  3.100
 [AVFormatContext @ 0x145e068d0] Unable to choose an output format for
 'version'; use a standard extension for the filename or specify the format
 manually.
 [out#0 @ 0x6000017a03c0] Error initializing the muxer for version: Invalid
 argument
 Error opening output file version.
 Error opening output files: Invalid argument

 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11402>
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