Opened 6 years ago
Closed 6 years ago
#7378 closed defect (invalid)
Extra mp4 header data causes decode failure
Reported by: | cgbug | Owned by: | |
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Priority: | normal | Component: | avformat |
Version: | git-master | Keywords: | mov |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
Sample:
https://www.datafilehost.com/d/3dcb324d
Sample contains original video file, and modified file after import from a mobile phone by Windows. The only difference is some extra metadata in the header (a date of import value). Hex comparison picture is included as well.
ffmpeg version N-91646-g78d4b6bd43 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 8.2.1 (GCC) 20180813 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --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 libavutil 56. 19.100 / 56. 19.100 libavcodec 58. 23.100 / 58. 23.100 libavformat 58. 17.103 / 58. 17.103 libavdevice 58. 4.101 / 58. 4.101 libavfilter 7. 26.100 / 7. 26.100 libswscale 5. 2.100 / 5. 2.100 libswresample 3. 2.100 / 3. 2.100 libpostproc 55. 2.100 / 55. 2.100 [aac @ 0000000000588d00] channel element 0.0 duplicate [h264 @ 0000000000592e80] Invalid NAL unit size (-1413299846 > 559738). [h264 @ 0000000000592e80] Error splitting the input into NAL units. [h264 @ 0000000000592e80] Invalid NAL unit size (2141028344 > 458724). [h264 @ 0000000000592e80] Error splitting the input into NAL units ... more of same
Change History (3)
comment:1 by , 6 years ago
comment:2 by , 6 years ago
I haven't found anything that can play it. I also did not make the file. Strictly speaking it probably violates spec. But looking at the hex diff, that unknown header element could just be ignored / skipped over.
comment:3 by , 6 years ago
Keywords: | mov added |
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Resolution: | → invalid |
Status: | new → closed |
I don't think this is a valid ticket, feel free to reopen if you find a software (or hardware) that can read this file.
Which software allows to read the broken file?