Opened 10 years ago
Closed 10 years ago
#4042 closed defect (fixed)
Broken console output when transcoding (broken) MEncoder files
| Reported by: | rush | Owned by: | |
|---|---|---|---|
| Priority: | minor | Component: | avformat |
| Version: | git-master | Keywords: | avi mp2 regression |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
ffmpeg is not able to convert mp2 audio track on huge files ( 60-80G ).
works on 2.4.2, but also was successfully reproduced on 1.0.10.
How to reproduce:
% ffmpeg -i video2.mpg -t 100 -c:a libfaac -map 0:1 output.m4a ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers built on Oct 5 2014 09:31:05 with gcc 4.9.1 (Debian 4.9.1-16) configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libiec61883 --enable-libfdk-aac --enable-vaapi --enable-libx265 --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100
After execution I get about 5-6kB audio file with no sound.
Initially I tried to convert video file from raw to x264, video conversion finishes without any issues, though there is no sounds, even audio track in file is present. Then I tried to convert just audio without video and it is the same. It doesn't matter to which audio format I want to convert. Even simple copy doesn't work.
Here is full output for copy:
$ ffmpeg -i video2.mpg -t 100 -c:a copy -map 0:1 output.aac
ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Oct 5 2014 09:31:05 with gcc 4.9.1 (Debian 4.9.1-16)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libiec61883 --enable-libfdk-aac --enable-vaapi --enable-libx265 --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
[avi @ 0xfeffa0] non-interleaved AVI
Input #0, avi, from 'video2.mpg':
Metadata:
encoder : MEncoder SVN-r37289
Duration: 01:37:08.64, start: 0.000000, bitrate: 123100 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 122869 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp2 (P[0][0][0] / 0x0050), 48000 Hz, stereo, s16p, 224 kb/s
File 'output.aac' already exists. Overwrite ? [y/N] y
Output #0, adts, to 'output.aac':
Metadata:
encoder : Lavf56.4.101
Stream #0:0: Audio: mp2 (P[0][0][0] / 0x0050), 48000 Hz, stereo, 224 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (copy)
Press [q] to stop, [?] for help
size= 5kB time=00:01:36.79 bitrate= 0.4kbits/s
video:0kB audio:5kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
Source file can be played with mplayer without any issues. I tried to get small file (about 150M) with same codecs (the file is produced with mencoder and dump the stream from /dev/video0 ) and it can convert it fine. Looks like only big files are affected. So it's impossible to attach 80G video to the ticket.
Attachments (1)
Change History (11)
comment:1 by , 10 years ago
| Priority: | important → normal |
|---|
comment:2 by , 10 years ago
| Component: | ffmpeg → undetermined |
|---|
comment:3 by , 10 years ago
here is mencoder options:
mencoder tv:// -tv driver=v4l2:device=/dev/video1:alsa:adevice=hw.1:forceaudio:volume=80 -ovc copy -oac lavc -lavcopts vcodec=mpeg2video -vf harddup -o abi.mpg
here is convert attempt:
$ ffmpeg -i abi.mpg abi.mp2
ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Oct 5 2014 09:31:05 with gcc 4.9.1 (Debian 4.9.1-16)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libiec61883 --enable-libfdk-aac --enable-vaapi --enable-libx265 --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
[avi @ 0x1d2cfa0] non-interleaved AVI
Input #0, avi, from 'abi.mpg':
Metadata:
encoder : MEncoder SVN-r37289
Duration: 01:32:15.60, start: 0.000000, bitrate: 123104 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 122872 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp2 (P[0][0][0] / 0x0050), 48000 Hz, stereo, s16p, 224 kb/s
Output #0, mp2, to 'abi.mp2':
Metadata:
encoder : Lavf56.4.101
Stream #0:0: Audio: mp2, 48000 Hz, stereo, s16, 384 kb/s
Metadata:
encoder : Lavc56.1.100 mp2
Stream mapping:
Stream #0:1 -> #0:0 (mp2 (native) -> mp2 (native))
Press [q] to stop, [?] for help
size= 37kB time=00:08:36.10 bitrate= 0.6kbits/s
video:0kB audio:37kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
Received signal 2: terminating.
confirm that result file is incorrect. here is information about output file (conversion process was manually stopped after several minutes, that's why it's much shorter and anyway it should not affect the process itself )
[mp3 @ 0x19f9b20] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'abi.mp2':
Duration: 00:00:00.82, start: 0.000000, bitrate: 372 kb/s
Stream #0:0: Audio: mp2, 48000 Hz, stereo, s16p, 372 kb/s
At least one output file must be specified
follow-up: 5 comment:4 by , 10 years ago
If you manually stopped the conversion after eight minutes were transcoded and the output file is eight minutes wrong, what was not correct about the conversion process?
comment:5 by , 10 years ago
as you can see the duration of output file is 00:00:00.82 (check ffmpeg -i abi.mp2 at the end of my previous comment) and not 8 minutes. and that is wrong!
comment:6 by , 10 years ago
I recorded ~50G with the MEncoder command line you provided and converted the audio of the resulting file with the command line I posted above and the mp2 output file plays fine here.
Could you test again without interrupting the conversion process (it takes considerable time to read a file of this size, so you have to wait) and test playing the resulting mp2 file? Is there really anything wrong with it?
I know that MEncoder is broken for the command line you provided and I know that the console output of FFmpeg is not correct when transcoding these broken MEncoder files but this is not what you reported: Iiuc you reported that the output file that FFmpeg produces for the command line I suggested is broken, this is still unreproducible to me.
comment:7 by , 10 years ago
| Resolution: | → invalid |
|---|---|
| Status: | new → closed |
ok, I see now. the problem is that ffmpeg output calculates incorrect time ranges while conversion is ongoing.
if I'm running the full conversion it works fine and output file is good enough for me.
$ time ffmpeg -i abi.mpg abi.mp2
ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Oct 5 2014 09:31:05 with gcc 4.9.1 (Debian 4.9.1-16)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libiec61883 --enable-libfdk-aac --enable-vaapi --enable-libx265 --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
[avi @ 0x1390aa0] non-interleaved AVI
Input #0, avi, from 'abi.mpg':
Metadata:
encoder : MEncoder SVN-r37289
Duration: 01:32:15.60, start: 0.000000, bitrate: 123104 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp2 (P[0][0][0] / 0x0050), 48000 Hz, stereo, s16, 224 kb/s
Output #0, mp2, to 'abi.mp2':
Metadata:
encoder : Lavf54.29.104
Stream #0:0: Audio: mp2, 48000 Hz, stereo, s16, 128 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (mp2 -> mp2)
Press [q] to stop, [?] for help
error parsing debug value40:12.30 bitrate= 0.2kbits/s
debug=0
size= 86493kB time=1033:18:10.95 bitrate= 0.2kbits/s
video:0kB audio:86493kB subtitle:0 global headers:0kB muxing overhead 0.000000%
real 26m8.850s
user 2m46.876s
sys 3m36.180s
and outputed file duration also exceeds source file:
Input #0, mp3, from 'abi.mp2':
Duration: 01:34:06.88, start: 0.000000, bitrate: 125 kb/s
Stream #0:0: Audio: mp2, 48000 Hz, stereo, s16p, 125 kb/s
You can see 01:34:06.88 while original file was 01:32:15.60.
So I guess I can close ticket as invalid. Thank you for you help cehoyos.
by , 10 years ago
| Attachment: | mencoder.avi added |
|---|
comment:8 by , 10 years ago
| Priority: | normal → minor |
|---|---|
| Resolution: | invalid |
| Status: | closed → reopened |
| Summary: | ffmpeg is not able to convert mp2 audio → Broken console output when transcoding (broken) MEncoder files |
| Version: | 2.4.2 → git-master |
When transcoding (broken) avi files made with current MEncoder, FFmpeg shows completely wrong time information for the audio track. The attached sample is fifteen seconds long.
$ ffmpeg -i mencoder.avi out.mp2
ffmpeg version N-67022-g69071e8 Copyright (c) 2000-2014 the FFmpeg developers
built on Oct 19 2014 14:53:44 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 54. 10.100 / 54. 10.100
libavcodec 56. 8.102 / 56. 8.102
libavformat 56. 9.101 / 56. 9.101
libavdevice 56. 1.100 / 56. 1.100
libavfilter 5. 1.106 / 5. 1.106
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[avi @ 0x2d77d20] non-interleaved AVI
Input #0, avi, from 'mencoder.avi':
Metadata:
encoder : MEncoder SVN-r37259-4.7
Duration: 00:00:15.03, start: 0.000000, bitrate: 933 kb/s
Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 695 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
Stream #0:1: Audio: mp2 (P[0][0][0] / 0x0050), 44100 Hz, mono, s16p, 224 kb/s
Output #0, mp2, to 'out.mp2':
Metadata:
encoder : Lavf56.9.101
Stream #0:0: Audio: mp2, 44100 Hz, mono, s16, 384 kb/s
Metadata:
encoder : Lavc56.8.102 mp2
Stream mapping:
Stream #0:1 -> #0:0 (mp2 (native) -> mp2 (native))
Press [q] to stop, [?] for help
size= 704kB time=03:02:47.26 bitrate= 0.5kbits/s
video:0kB audio:704kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
The output file is fifteen seconds long and plays fine.
comment:9 by , 10 years ago
| Component: | undetermined → avcodec |
|---|---|
| Keywords: | mp2 regression added |
| Reproduced by developer: | set |
| Status: | reopened → open |
Looks like a regression since 967facb6 / b0f75ba2
comment:10 by , 10 years ago
| Component: | avcodec → avformat |
|---|---|
| Keywords: | avi added |
| Resolution: | → fixed |
| Status: | open → closed |
I believe this was fixed by Gabor Nagy in ae8168074eb1c8230d9c6482102ca08a70a9c4b0 (and 2.6).
Note:
See TracTickets
for help on using tickets.
Is the issue not reproducible with current FFmpeg git head?
Please provide the MEncoder command line that produces your input file and please provide the complete, uncut console output of
ffmpeg -i video2.mpg out.mp2(and confirm that the output file is not ok) to make this a valid ticket.