#3145: Header inconsistencies for a certain range of video bit rate
-------------------------------------+-------------------------------------
Reporter: olitoli | Owner:
Type: defect | Status: new
Priority: normal | Component: FFmpeg
Version: 2.1 | Resolution:
Keywords: xvid avi | Blocked By:
video bitrate | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by olitoli):
Thanks for taking a look.
I'm not sure I can build and test the current git head. I usually only
download the Mac OS X Tessus standalone builds. Since the problem is in
both 1.2.1 and 2.1.0, I doubt that this is a recent bug and it's most
likely present in the current hit head.
The original testing described in the bug report was done with -c:v mpeg4.
I did further testing using -c:v libxvid as you suggested and the results
are the same (good for 2000k and bad for 1900k) so this does not seem to
be associated with any video encoder. Since I had also tested both MP3 and
AC3, this does not seem to be associated with any audio encoder either.
I believe that it's the container header that is trashed for a certain
range of video bitrate, not the streams headers themselves.
I created the 2 test files outhighbitrate.avi and outlowbitrate.avi and
while the GUI version of MediaInfo Mac 0.7.36.0 does not detect any
issues, I can only play correctly outhighbitrate.avi on my DVD Player as
outlowbitrate.avi makes it freeze.
You asked for the complete uncut console output so please find it below. I
already compared it and could not find any smoking gun there.
$ffmpeg -i PR.m4v -c:v mpeg4 -vtag XVID -b:v 1900k -r 23.976 -c:a ac3 -b:a
128k -ar 48000 -ac 2 P_1900.avi
ffmpeg version 1.2.1-tessus Copyright (c) 2000-2013 the FFmpeg developers
built on May 9 2013 21:58:14 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
configuration: --prefix=/Users/tessus/data/ext/ffmpeg/sw --as=yasm
--extra-version=tessus --disable-shared --enable-static --disable-ffplay
--enable-gpl --enable-pthreads --enable-postproc --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid
--enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libxavs --enable-version3 --enable-
libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm
--enable-libopus --enable-fontconfig --enable-libfreetype --enable-libass
--enable-filters --enable-runtime-cpudetect
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Volumes/done/PR.m4v':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2013-11-13 16:27:35
encoder : HandBrake 0.9.9 2013051800
Duration: 02:11:17.46, start: 0.000000, bitrate: 4168 kb/s
Chapter #0.0: start 0.000000, end 549.081867
Metadata:
title : Chapter 1
Chapter #0.1: start 549.081867, end 1115.781333
Metadata:
title : Chapter 2
Chapter #0.2: start 1115.781333, end 1384.416367
Metadata:
title : Chapter 3
Chapter #0.3: start 1384.416367, end 1980.345033
Metadata:
title : Chapter 4
Chapter #0.4: start 1980.345033, end 2564.895667
Metadata:
title : Chapter 5
Chapter #0.5: start 2564.895667, end 3001.698700
Metadata:
title : Chapter 6
Chapter #0.6: start 3001.698700, end 3669.699356
Metadata:
title : Chapter 7
Chapter #0.7: start 3669.699356, end 4485.180689
Metadata:
title : Chapter 8
Chapter #0.8: start 4485.180689, end 4941.269656
Metadata:
title : Chapter 9
Chapter #0.9: start 4941.269656, end 5529.857656
Metadata:
title : Chapter 10
Chapter #0.10: start 5529.857656, end 6115.609489
Metadata:
title : Chapter 11
Chapter #0.11: start 6115.609489, end 6697.857822
Metadata:
title : Chapter 12
Chapter #0.12: start 6697.857822, end 7160.987156
Metadata:
title : Chapter 13
Chapter #0.13: start 7160.987156, end 7337.830489
Metadata:
title : Chapter 14
Chapter #0.14: start 7337.830489, end 7877.002456
Metadata:
title : Chapter 15
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
720x404, 3999 kb/s, 23.98 fps, 59.94 tbr, 90k tbn, 180k tbc
Metadata:
creation_time : 2013-11-13 16:27:35
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
fltp, 164 kb/s
Metadata:
creation_time : 2013-11-13 16:27:35
Stream #0:2(und): Subtitle: mov_text (text / 0x74786574)
Metadata:
creation_time : 2013-11-13 16:27:35
Output #0, avi, to 'P_1900.avi':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
ISFT : Lavf54.63.104
Chapter #0.0: start 0.000000, end 549.081867
Metadata:
title : Chapter 1
Chapter #0.1: start 549.081867, end 1115.781333
Metadata:
title : Chapter 2
Chapter #0.2: start 1115.781333, end 1384.416367
Metadata:
title : Chapter 3
Chapter #0.3: start 1384.416367, end 1980.345033
Metadata:
title : Chapter 4
Chapter #0.4: start 1980.345033, end 2564.895667
Metadata:
title : Chapter 5
Chapter #0.5: start 2564.895667, end 3001.698700
Metadata:
title : Chapter 6
Chapter #0.6: start 3001.698700, end 3669.699356
Metadata:
title : Chapter 7
Chapter #0.7: start 3669.699356, end 4485.180689
Metadata:
title : Chapter 8
Chapter #0.8: start 4485.180689, end 4941.269656
Metadata:
title : Chapter 9
Chapter #0.9: start 4941.269656, end 5529.857656
Metadata:
title : Chapter 10
Chapter #0.10: start 5529.857656, end 6115.609489
Metadata:
title : Chapter 11
Chapter #0.11: start 6115.609489, end 6697.857822
Metadata:
title : Chapter 12
Chapter #0.12: start 6697.857822, end 7160.987156
Metadata:
title : Chapter 13
Chapter #0.13: start 7160.987156, end 7337.830489
Metadata:
title : Chapter 14
Chapter #0.14: start 7337.830489, end 7877.002456
Metadata:
title : Chapter 15
Stream #0:0(und): Video: mpeg4 (XVID / 0x44495658), yuv420p, 720x404,
q=2-31, 1900 kb/s, 23.98 tbn, 23.98 tbc
Metadata:
creation_time : 2013-11-13 16:27:35
Stream #0:1(eng): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo,
fltp, 128 kb/s
Metadata:
creation_time : 2013-11-13 16:27:35
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mpeg4)
Stream #0:1 -> #0:1 (aac -> ac3)
Press [q] to stop, [?] for help
frame=188870 fps=487 q=2.0 Lsize= 1957926kB time=02:11:17.46
bitrate=2036.1kbits/s
video:1824299kB audio:123079kB subtitle:0 global headers:0kB muxing
overhead 0.541614%
$ffmpeg -i PR.m4v -c:v mpeg4 -vtag XVID -b:v 2000k -r 23.976 -c:a ac3 -b:a
128k -ar 48000 -ac 2 P_2000.avi
ffmpeg version 1.2.1-tessus Copyright (c) 2000-2013 the FFmpeg developers
built on May 9 2013 21:58:14 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
configuration: --prefix=/Users/tessus/data/ext/ffmpeg/sw --as=yasm
--extra-version=tessus --disable-shared --enable-static --disable-ffplay
--enable-gpl --enable-pthreads --enable-postproc --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid
--enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libxavs --enable-version3 --enable-
libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm
--enable-libopus --enable-fontconfig --enable-libfreetype --enable-libass
--enable-filters --enable-runtime-cpudetect
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Volumes/done/PR.m4v':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2013-11-13 16:27:35
encoder : HandBrake 0.9.9 2013051800
Duration: 02:11:17.46, start: 0.000000, bitrate: 4168 kb/s
Chapter #0.0: start 0.000000, end 549.081867
Metadata:
title : Chapter 1
Chapter #0.1: start 549.081867, end 1115.781333
Metadata:
title : Chapter 2
Chapter #0.2: start 1115.781333, end 1384.416367
Metadata:
title : Chapter 3
Chapter #0.3: start 1384.416367, end 1980.345033
Metadata:
title : Chapter 4
Chapter #0.4: start 1980.345033, end 2564.895667
Metadata:
title : Chapter 5
Chapter #0.5: start 2564.895667, end 3001.698700
Metadata:
title : Chapter 6
Chapter #0.6: start 3001.698700, end 3669.699356
Metadata:
title : Chapter 7
Chapter #0.7: start 3669.699356, end 4485.180689
Metadata:
title : Chapter 8
Chapter #0.8: start 4485.180689, end 4941.269656
Metadata:
title : Chapter 9
Chapter #0.9: start 4941.269656, end 5529.857656
Metadata:
title : Chapter 10
Chapter #0.10: start 5529.857656, end 6115.609489
Metadata:
title : Chapter 11
Chapter #0.11: start 6115.609489, end 6697.857822
Metadata:
title : Chapter 12
Chapter #0.12: start 6697.857822, end 7160.987156
Metadata:
title : Chapter 13
Chapter #0.13: start 7160.987156, end 7337.830489
Metadata:
title : Chapter 14
Chapter #0.14: start 7337.830489, end 7877.002456
Metadata:
title : Chapter 15
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
720x404, 3999 kb/s, 23.98 fps, 59.94 tbr, 90k tbn, 180k tbc
Metadata:
creation_time : 2013-11-13 16:27:35
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
fltp, 164 kb/s
Metadata:
creation_time : 2013-11-13 16:27:35
Stream #0:2(und): Subtitle: mov_text (text / 0x74786574)
Metadata:
creation_time : 2013-11-13 16:27:35
Output #0, avi, to 'P_2000.avi':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
ISFT : Lavf54.63.104
Chapter #0.0: start 0.000000, end 549.081867
Metadata:
title : Chapter 1
Chapter #0.1: start 549.081867, end 1115.781333
Metadata:
title : Chapter 2
Chapter #0.2: start 1115.781333, end 1384.416367
Metadata:
title : Chapter 3
Chapter #0.3: start 1384.416367, end 1980.345033
Metadata:
title : Chapter 4
Chapter #0.4: start 1980.345033, end 2564.895667
Metadata:
title : Chapter 5
Chapter #0.5: start 2564.895667, end 3001.698700
Metadata:
title : Chapter 6
Chapter #0.6: start 3001.698700, end 3669.699356
Metadata:
title : Chapter 7
Chapter #0.7: start 3669.699356, end 4485.180689
Metadata:
title : Chapter 8
Chapter #0.8: start 4485.180689, end 4941.269656
Metadata:
title : Chapter 9
Chapter #0.9: start 4941.269656, end 5529.857656
Metadata:
title : Chapter 10
Chapter #0.10: start 5529.857656, end 6115.609489
Metadata:
title : Chapter 11
Chapter #0.11: start 6115.609489, end 6697.857822
Metadata:
title : Chapter 12
Chapter #0.12: start 6697.857822, end 7160.987156
Metadata:
title : Chapter 13
Chapter #0.13: start 7160.987156, end 7337.830489
Metadata:
title : Chapter 14
Chapter #0.14: start 7337.830489, end 7877.002456
Metadata:
title : Chapter 15
Stream #0:0(und): Video: mpeg4 (XVID / 0x44495658), yuv420p, 720x404,
q=2-31, 2000 kb/s, 23.98 tbn, 23.98 tbc
Metadata:
creation_time : 2013-11-13 16:27:35
Stream #0:1(eng): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo,
fltp, 128 kb/s
Metadata:
creation_time : 2013-11-13 16:27:35
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mpeg4)
Stream #0:1 -> #0:1 (aac -> ac3)
Press [q] to stop, [?] for help
frame=188870 fps=458 q=2.0 Lsize= 2053710kB time=02:11:17.46
bitrate=2135.7kbits/s
video:1920254kB audio:123079kB subtitle:0 global headers:0kB muxing
overhead 0.507827%
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3145#comment:2>
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