[FFmpeg-trac] #10297(undetermined:new): Wrong WEBM length for .mkv to .webm conversion.

FFmpeg trac at avcodec.org
Fri Mar 31 20:52:09 EEST 2023


#10297: Wrong WEBM length for .mkv to .webm conversion.
-------------------------------------+-------------------------------------
             Reporter:  rfulton88    |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by rfulton88):

 D:\Apps\ffmpeg\bin> ffmpeg -ss 4236.5 -t 3.90 -i
 "D:\Apps\ffmpeg\bin\black.adam.4k.mkv" -c:v vp9 -c:a libvorbis
 troubleshooting.webm
 ffmpeg version N-110129-gd2e1389285-20230331 Copyright (c) 2000-2023 the
 FFmpeg developers
   built with gcc 12.2.0 (crosstool-NG 1.25.0.152_89671bf)
   configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static
 --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64
 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug
 --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2
 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp
 --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl
 --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib
 --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth
 --enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk-
 aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme
 --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl
 --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh
 --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2
 --disable-libmfx --enable-libvpl --enable-openal --enable-libopencore-
 amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg
 --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-
 schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1
 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi
 --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-
 libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-
 libxvid --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread
 --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20230331
   libavutil      58.  5.100 / 58.  5.100
   libavcodec     60.  7.101 / 60.  7.101
   libavformat    60.  4.101 / 60.  4.101
   libavdevice    60.  2.100 / 60.  2.100
   libavfilter     9.  5.100 /  9.  5.100
   libswscale      7.  2.100 /  7.  2.100
   libswresample   4. 11.100 /  4. 11.100
   libpostproc    57.  2.100 / 57.  2.100
 Input #0, matroska,webm, from 'D:\Apps\ffmpeg\bin\black.adam.4k.mkv':
   Metadata:
     encoder         : libebml v1.4.0 + libmatroska v1.6.1
   Duration: 02:04:50.34, start: 0.000000, bitrate: 25146 kb/s
   Stream #0:0(eng): Video: hevc (Main 10), yuv420p10le(tv,
 bt2020nc/bt2020/smpte2084), 3840x1606 [SAR 1:1 DAR 1920:803], 23.98 fps,
 23.98 tbr, 1k tbn (default)
     Metadata:
       BPS-eng         : 24375837
       DURATION-eng    : 02:04:50.316000000
       NUMBER_OF_FRAMES-eng: 179588
       NUMBER_OF_BYTES-eng: 22822841136
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:1(eng): Audio: eac3 (Dolby Digital Plus + Dolby Atmos), 48000
 Hz, 5.1(side), fltp, 768 kb/s (default)
     Metadata:
       BPS-eng         : 768000
       DURATION-eng    : 02:04:50.336000000
       NUMBER_OF_FRAMES-eng: 234073
       NUMBER_OF_BYTES-eng: 719072256
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:2(eng): Subtitle: subrip
     Metadata:
       title           : English
       BPS-eng         : 80
       DURATION-eng    : 02:00:13.500000000
       NUMBER_OF_FRAMES-eng: 1771
       NUMBER_OF_BYTES-eng: 72265
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:3(eng): Subtitle: subrip (default) (forced)
     Metadata:
       title           : English [Forced]
       BPS-eng         : 2
       DURATION-eng    : 01:42:52.714000000
       NUMBER_OF_FRAMES-eng: 76
       NUMBER_OF_BYTES-eng: 1649
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:4(ara): Subtitle: subrip
     Metadata:
       title           : Arabic
       BPS-eng         : 63
       DURATION-eng    : 02:03:36.541000000
       NUMBER_OF_FRAMES-eng: 1260
       NUMBER_OF_BYTES-eng: 58459
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:5(chi): Subtitle: subrip
     Metadata:
       title           : Chinese Yue
       BPS-eng         : 38
       DURATION-eng    : 02:03:36.541000000
       NUMBER_OF_FRAMES-eng: 1264
       NUMBER_OF_BYTES-eng: 35519
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:6(fre): Subtitle: subrip
     Metadata:
       title           : French
       BPS-eng         : 37
       DURATION-eng    : 02:03:36.500000000
       NUMBER_OF_FRAMES-eng: 1294
       NUMBER_OF_BYTES-eng: 35166
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:7(kor): Subtitle: subrip
     Metadata:
       title           : Korean
       BPS-eng         : 40
       DURATION-eng    : 01:56:29.656000000
       NUMBER_OF_FRAMES-eng: 1254
       NUMBER_OF_BYTES-eng: 35315
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:8(spa): Subtitle: subrip
     Metadata:
       title           : Latin America Spanish
       BPS-eng         : 43
       DURATION-eng    : 02:03:36.541000000
       NUMBER_OF_FRAMES-eng: 1258
       NUMBER_OF_BYTES-eng: 40278
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
   Stream #0:9(por): Subtitle: subrip
     Metadata:
       title           : Portuguese Brazilian
       BPS-eng         : 43
       DURATION-eng    : 02:03:36.791000000
       NUMBER_OF_FRAMES-eng: 1237
       NUMBER_OF_BYTES-eng: 39945
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream mapping:
   Stream #0:0 -> #0:0 (hevc (native) -> vp9 (libvpx-vp9))
   Stream #0:1 -> #0:1 (eac3 (native) -> vorbis (libvorbis))
   Stream #0:2 -> #0:2 (subrip (srt) -> webvtt (native))
 Press [q] to stop, [?] for help
 [libvpx-vp9 @ 0000025993392940] v1.13.0
 [libvpx-vp9 @ 0000025993392940] Neither bitrate nor constrained quality
 specified, using default CRF of 32
 Output #0, webm, to 'troubleshooting.webm':
   Metadata:
     encoder         : Lavf60.4.101
   Stream #0:0(eng): Video: vp9, yuv420p10le(tv, bt2020nc/bt2020/smpte2084,
 progressive), 3840x1606 [SAR 1:1 DAR 1920:803], q=2-31, 23.98 fps, 1k tbn
 (default)
     Metadata:
       BPS-eng         : 24375837
       DURATION-eng    : 02:04:50.316000000
       NUMBER_OF_FRAMES-eng: 179588
       NUMBER_OF_BYTES-eng: 22822841136
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       encoder         : Lavc60.7.101 libvpx-vp9
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
   Stream #0:1(eng): Audio: vorbis, 48000 Hz, 5.1(side), fltp (default)
     Metadata:
       BPS-eng         : 768000
       DURATION-eng    : 02:04:50.336000000
       NUMBER_OF_FRAMES-eng: 234073
       NUMBER_OF_BYTES-eng: 719072256
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       encoder         : Lavc60.7.101 libvorbis
   Stream #0:2(eng): Subtitle: webvtt
     Metadata:
       title           : English
       BPS-eng         : 80
       DURATION-eng    : 02:00:13.500000000
       NUMBER_OF_FRAMES-eng: 1771
       NUMBER_OF_BYTES-eng: 72265
       _STATISTICS_WRITING_APP-eng: mkvmerge v49.0.0 ('Sick Of Losing
 Soulmates') 64-bit
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       encoder         : Lavc60.7.101 webvtt
 frame=   94 fps=0.3 q=32.0 Lsize=     888kB time=00:50:12.01 bitrate=
 2.4kbits/s speed=8.79x
 video:728kB audio:105kB subtitle:17kB other streams:0kB global headers:7kB
 muxing overhead: 4.376228%
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10297#comment:1>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list