[FFmpeg-trac] #11028(undetermined:new): Audio of damaged MP4 suddenly stops playing
FFmpeg
trac at avcodec.org
Sat May 25 04:58:04 EEST 2024
#11028: Audio of damaged MP4 suddenly stops playing
-------------------------------------+-------------------------------------
Reporter: PumaD | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Follow-up to #11005
Got a slightly damaged 1.9 GiB MP4 file. When playing with ffplay (or any
ffmpeg based player like mpv) the audio suddenly stops playing at
00:43:05.
Remuxing the file with mkvtoolnix resolves this problem.
(https://gitlab.com/mbunkus/mkvtoolnix; `mkvmerge --output out.mkv
slightly-damaged-audio-stops-at-00-43-05.mp4`)
Remuxing with ffmpeg instead does not.
(`ffmpeg -i slightly-damaged-audio-stops-at-00-43-05.mp4 -c copy out.mkv`)
How to reproduce:
{{{
$ ffplay -ss 00:43:00 slightly-damaged-audio-stops-at-00-43-05.mp4
ffplay version N-115363-g3146b77a7d Copyright (c) 2003-2024 the FFmpeg
developers
built with gcc 14.1.1 (GCC) 20240507
configuration:
libavutil 59. 19.100 / 59. 19.100
libavcodec 61. 5.104 / 61. 5.104
libavformat 61. 3.103 / 61. 3.103
libavdevice 61. 2.100 / 61. 2.100
libavfilter 10. 2.102 / 10. 2.102
libswscale 8. 2.100 / 8. 2.100
libswresample 5. 2.100 / 5. 2.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x726024000c80] Sample size 3043950162 is too
large
[h264 @ 0x726024001c00] concealing 1691 DC, 1691 AC, 1691 MV errors in I
frame
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'slightly-damaged-audio-stops-
at-00-43-05.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.62.100
Duration: 01:28:36.03, start: 0.000000, bitrate: 1577 kb/s
Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661),
yuv420p(progressive), 960x720 [SAR 1:1 DAR 4:3], 3028 kb/s, 29.93 fps, 30
tbr, 90k tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, fltp, 93 kb/s (default)
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
[h264 @ 0x72602455e800] concealing 1127 DC, 1127 AC, 1127 MV errors in P
frame
2589.48 A-V: -0.008 fd= 0 aq= 0KB vq=15360KB sq= 0B
}}}
(Sample upload in progress)
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11028>
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