[FFmpeg-trac] #6102(undetermined:new): "error reading header" and "unknown error" when reading mp4 file
FFmpeg
trac at avcodec.org
Wed Jan 25 12:38:25 EET 2017
#6102: "error reading header" and "unknown error" when reading mp4 file
-------------------------------------+-------------------------------------
Reporter: balchen | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
ffprobe and ffmpeg report "error reading header" / "unknown error" /
-1989548172 when reading an mp4 file I received from a client.
According to MediaInfo, the file contains the following 6 streams:
{{{
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/mp41)
File size : 2.15 GiB
Duration : 8mn 49s
Overall bit rate : 34.9 Mbps
Encoded date : UTC 2014-06-20 15:45:31
Tagged date : UTC 2014-08-20 10:27:37
Video
ID : 1
Format : MPEG-4 Visual
Format profile : Simple at L1
Format settings, BVOP : Yes
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : 20
Duration : 8mn 49s
Bit rate : 34.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.656
Stream size : 2.10 GiB (98%)
Language : English
Encoded date : UTC 2014-06-20 15:44:11
Tagged date : UTC 2014-06-20 15:47:44
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
transfer_characteristics_Or : BT.601
matrix_coefficients_Origina : BT.601
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 8mn 49s
Source duration : 8mn 49s
Bit rate mode : Constant
Bit rate : 55.2 Kbps
Nominal bit rate : 64.0 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Frame rate : 43.066 fps (1024 spf)
Compression mode : Lossy
Stream size : 3.48 MiB (0%)
Source stream size : 3.48 MiB (0%)
Language : English
Encoded date : UTC 2014-06-20 15:44:11
Tagged date : UTC 2014-06-20 15:47:44
Other #1
ID : 3
Type : Scene description
Format : System Core
Codec ID : 2
Duration : 8mn 49s
Language : English
Encoded date : UTC 2014-06-20 15:44:11
Tagged date : UTC 2014-06-20 15:47:44
Other #2
ID : 4
Type : Object description
Format : System
Codec ID : 1
Duration : 8mn 49s
Language : English
Encoded date : UTC 2014-06-20 15:44:11
Tagged date : UTC 2014-06-20 15:47:44
Other #3
ID : 5
Type : Hint
Format : RTP
Codec ID : rtp
Duration : 8mn 49s
Title : Hinted Sound Track
Language : English
Default : No
Encoded date : UTC 2014-06-20 15:44:11
Tagged date : UTC 2014-06-20 15:47:44
Source duration : 529206
Source_Duration_LastFrame : -23
Source frame count : 5698
Source stream size : 546992
Stream size : 546992
Bit rate mode : VBR
Other #4
ID : 6
Type : Hint
Format : RTP
Codec ID : rtp
Duration : 8mn 49s
Title : Hinted Video Track
Language : English
Default : No
Encoded date : UTC 2014-06-20 15:44:24
Tagged date : UTC 2014-06-20 15:47:44
}}}
How to reproduce:
ffmpeg -report provides the following log:
{{{
ffmpeg started on 2017-01-25 at 11:04:28
Report written to "ffmpeg-20170125-110428.log"
Command line:
ffmpeg -i Funnhistorie.mp4 -report
ffmpeg version N-82889-g54931fd Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-dxva2 --enable-
libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig
--enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-
libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-
libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-
libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-
libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-
libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-
libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 43.100 / 55. 43.100
libavcodec 57. 68.100 / 57. 68.100
libavformat 57. 61.100 / 57. 61.100
libavdevice 57. 2.100 / 57. 2.100
libavfilter 6. 68.100 / 6. 68.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Splitting the commandline.
Reading option '-i' ... matched as input url with argument
'Funnhistorie.mp4'.
Reading option '-report' ... matched as option 'report' (generate a
report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url Funnhistorie.mp4.
Successfully parsed a group of options.
Opening an input file: Funnhistorie.mp4.
[file @ 0000000000e56540] Setting default whitelist 'file,crypto'
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Format
mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] ISO: File Type Major Brand:
mp42
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Unknown dref type
0x08206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Processing st: 0, edit list 0
- media time: 0, duration: 1323000
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Unknown dref type
0x08206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Processing st: 1, edit list 0
- media time: 0, duration: 23337720
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Unknown dref type
0x08206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Processing st: 2, edit list 0
- media time: 0, duration: 1323000
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Unknown dref type
0x08206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Processing st: 3, edit list 0
- media time: 0, duration: 1323000
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Unknown dref type
0x08206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Processing st: 4, edit list 0
- media time: 0, duration: 23337720
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Unknown dref type
0x08206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] Processing st: 5, edit list 0
- media time: 0, duration: 47628000
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000025938c0] error reading header
[AVIOContext @ 0000000000e572e0] Statistics: 397362 bytes read, 1 seeks
Funnhistorie.mp4: Unknown error
}}}
-v 9 and -loglevel 99 provides the following details:
{{{
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13223, offset 8969c39c, dts 47602800, size 32, distance 1, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13224, offset 8969c3bc, dts 47606400, size 32, distance 2, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13225, offset 8969d8d0, dts 47610000, size 32, distance 3, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13226, offset 8969d8f0, dts 47613600, size 32, distance 4, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13227, offset 8969d910, dts 47617200, size 32, distance 5, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13228, offset 8969d930, dts 47620800, size 32, distance 6, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] AVIndex stream 5, sample
13229, offset 8969d950, dts 47624400, size 32, distance 7, keyframe 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] Processing st: 5, edit list 0
- media time: 0, duration: 47628000
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 61746475 'udta'
parent:'moov' sz: 78 370029 370132
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 69746e68 'hnti'
parent:'udta' sz: 70 8 70
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 73646f69 'iods'
parent:'moov' sz: 33 370107 370132
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 65657266 'free'
parent:'root' sz: 8 370172 2305419124
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 65657266 'free'
parent:'root' sz: 8 370180 2305419124
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 7461646d 'mdat'
parent:'root' sz: 2305045356 370188 2305419124
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] type: 64697575 'uuid'
parent:'root' sz: 3588 2305415544 2305419124
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002572640] error reading header
[AVIOContext @ 000000000257bb40] Statistics: 397362 bytes read, 1 seeks
Funnhistorie.mp4: Unknown error
}}}
THe file is 2.2 GB and belongs to someone else. I can possibly provide a
part of the file as a sample, but which part?
Thanks.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6102>
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