#3859: mp4: start_time never zero
-------------------------------------+-------------------------------------
Reporter: blacktrash | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
How to reproduce:
{{{
$ ffprobe -show_entries format=start_time BigBuckBunny_640x360.m4v
ffprobe version N-65628-g6c36b3a Copyright (c) 2007-2014 the FFmpeg
developers
built on Aug 14 2014 15:21:41 with Apple LLVM version 5.1
(clang-503.0.40) (based on LLVM 3.4svn)
configuration: --enable-gpl --enable-version3 --enable-nonfree
--disable-ffserver --enable-shared --enable-libfdk-aac --enable-libx265
--enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libvidstab
--extra-cflags=-I/sw/include --extra-libs=-L/sw/lib
libavutil 54. 3.100 / 54. 3.100
libavcodec 56. 0.100 / 56. 0.100
libavformat 56. 1.100 / 56. 1.100
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 0.100 / 5. 0.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 0.100 / 1. 0.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'BigBuckBunny_640x360.m4v':
Metadata:
major_brand : M4V
minor_version : 1
compatible_brands: M4V M4A mp42isom
creation_time : 2008-06-03 05:23:28
copyright : © 2008 Blender Foundation | www.bigbuckbunny.org
title : Big Buck Bunny
artist : Peach Open Movie Team
composer : Sacha Goedegebure / Ton Roosendaal
date : 2008
Duration: 00:09:56.46, start: 0.000000, bitrate: 1626 kb/s
Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 127 kb/s (default)
Metadata:
creation_time : 2008-06-03 05:23:28
handler_name : Apple Sound Media Handler
Stream #0:1(eng): Video: h264 (Constrained Baseline) (avc1 /
0x31637661), yuv420p(tv, smpte170m), 640x360, 1495 kb/s, 24 fps, 24 tbr,
2400 tbn, 4800 tbc (default)
Metadata:
creation_time : 2008-06-03 05:23:28
handler_name : Apple Video Media Handler
[FORMAT]
start_time=0.000000
[/FORMAT]
$ ffmpeg -i BigBuckBunny_640x360.m4v test.mp4
ffmpeg version N-65628-g6c36b3a Copyright (c) 2000-2014 the FFmpeg
developers
built on Aug 14 2014 15:21:41 with Apple LLVM version 5.1
(clang-503.0.40) (based on LLVM 3.4svn)
configuration: --enable-gpl --enable-version3 --enable-nonfree
--disable-ffserver --enable-shared --enable-libfdk-aac --enable-libx265
--enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libvidstab
--extra-cflags=-I/sw/include --extra-libs=-L/sw/lib
libavutil 54. 3.100 / 54. 3.100
libavcodec 56. 0.100 / 56. 0.100
libavformat 56. 1.100 / 56. 1.100
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 0.100 / 5. 0.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 0.100 / 1. 0.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'BigBuckBunny_640x360.m4v':
Metadata:
major_brand : M4V
minor_version : 1
compatible_brands: M4V M4A mp42isom
creation_time : 2008-06-03 05:23:28
copyright : © 2008 Blender Foundation | www.bigbuckbunny.org
title : Big Buck Bunny
artist : Peach Open Movie Team
composer : Sacha Goedegebure / Ton Roosendaal
date : 2008
Duration: 00:09:56.46, start: 0.000000, bitrate: 1626 kb/s
Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 127 kb/s (default)
Metadata:
creation_time : 2008-06-03 05:23:28
handler_name : Apple Sound Media Handler
Stream #0:1(eng): Video: h264 (Constrained Baseline) (avc1 /
0x31637661), yuv420p(tv, smpte170m), 640x360, 1495 kb/s, 24 fps, 24 tbr,
2400 tbn, 4800 tbc (default)
Metadata:
creation_time : 2008-06-03 05:23:28
handler_name : Apple Video Media Handler
[libx264 @ 0x7fe2e8826200] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX
[libx264 @ 0x7fe2e8826200] profile High, level 3.0
[libx264 @ 0x7fe2e8826200] 264 - core 142 r2453 ea0ca51 - H.264/MPEG-4 AVC
codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options:
cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24
scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
Metadata:
major_brand : M4V
minor_version : 1
compatible_brands: M4V M4A mp42isom
date : 2008
copyright : © 2008 Blender Foundation | www.bigbuckbunny.org
title : Big Buck Bunny
artist : Peach Open Movie Team
composer : Sacha Goedegebure / Ton Roosendaal
encoder : Lavf56.1.100
Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021),
yuv420p, 640x360, q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
creation_time : 2008-06-03 05:23:28
handler_name : Apple Video Media Handler
encoder : Lavc56.0.100 libx264
Stream #0:1(eng): Audio: aac (libfaac) ([64][0][0][0] / 0x0040), 44100
Hz, stereo, s16, 128 kb/s (default)
Metadata:
creation_time : 2008-06-03 05:23:28
handler_name : Apple Sound Media Handler
encoder : Lavc56.0.100 libfaac
Stream mapping:
Stream #0:1 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:0 -> #0:1 (aac (native) -> aac (libfaac))
Press [q] to stop, [?] for help
frame=14316 fps=292 q=-1.0 Lsize= 48159kB time=00:09:56.47 bitrate=
661.4kbits/s
video:38397kB audio:9320kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.926535%
[libx264 @ 0x7fe2e8826200] frame I:154 Avg QP:17.40 size: 37708
[libx264 @ 0x7fe2e8826200] frame P:5550 Avg QP:22.44 size: 4792
[libx264 @ 0x7fe2e8826200] frame B:8612 Avg QP:27.20 size: 803
[libx264 @ 0x7fe2e8826200] consecutive B-frames: 12.4% 17.7% 13.4% 56.4%
[libx264 @ 0x7fe2e8826200] mb I I16..4: 35.4% 26.7% 37.9%
[libx264 @ 0x7fe2e8826200] mb P I16..4: 3.2% 4.2% 1.7% P16..4: 33.3%
7.3% 4.9% 0.0% 0.0% skip:45.3%
[libx264 @ 0x7fe2e8826200] mb B I16..4: 0.2% 0.5% 0.2% B16..8: 24.6%
1.7% 0.5% direct: 0.8% skip:71.6% L0:49.5% L1:44.9% BI: 5.6%
[libx264 @ 0x7fe2e8826200] 8x8 transform intra:42.7% inter:49.6%
[libx264 @ 0x7fe2e8826200] coded y,uvDC,uvAC intra: 61.4% 65.7% 32.2%
inter: 9.7% 10.2% 2.1%
[libx264 @ 0x7fe2e8826200] i16 v,h,dc,p: 22% 27% 23% 28%
[libx264 @ 0x7fe2e8826200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 19% 26% 4%
5% 7% 5% 6% 6%
[libx264 @ 0x7fe2e8826200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 23% 19% 4%
6% 6% 6% 5% 5%
[libx264 @ 0x7fe2e8826200] i8c dc,h,v,p: 48% 23% 18% 11%
[libx264 @ 0x7fe2e8826200] Weighted P-Frames: Y:3.7% UV:2.4%
[libx264 @ 0x7fe2e8826200] ref P L0: 70.7% 13.5% 11.6% 4.2% 0.1%
[libx264 @ 0x7fe2e8826200] ref B L0: 91.2% 7.6% 1.2%
[libx264 @ 0x7fe2e8826200] ref B L1: 94.8% 5.2%
[libx264 @ 0x7fe2e8826200] kb/s:527.31
$ ffprobe -show_entries format=start_time test.mp4
ffprobe version N-65628-g6c36b3a Copyright (c) 2007-2014 the FFmpeg
developers
built on Aug 14 2014 15:21:41 with Apple LLVM version 5.1
(clang-503.0.40) (based on LLVM 3.4svn)
configuration: --enable-gpl --enable-version3 --enable-nonfree
--disable-ffserver --enable-shared --enable-libfdk-aac --enable-libx265
--enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libvidstab
--extra-cflags=-I/sw/include --extra-libs=-L/sw/lib
libavutil 54. 3.100 / 54. 3.100
libavcodec 56. 0.100 / 56. 0.100
libavformat 56. 1.100 / 56. 1.100
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 0.100 / 5. 0.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 0.100 / 1. 0.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : Big Buck Bunny
artist : Peach Open Movie Team
composer : Sacha Goedegebure / Ton Roosendaal
date : 2008
encoder : Lavf56.1.100
copyright : © 2008 Blender Foundation | www.bigbuckbunny.org
Duration: 00:09:56.50, start: 0.023220, bitrate: 661 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
640x360, 527 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 127 kb/s (default)
Metadata:
handler_name : SoundHandler
[FORMAT]
start_time=-0.023220
[/FORMAT]
}}}
Even using {{{-filter_complex [v]setpts=PTS-STARTPTS;[a]asetpts=PTS-
STARTPTS}}} does not make a difference. I haven't found any input where
this does not happen.
Just remuxing with {{{-c copy}}} is ok.
This can result in other apps warning about failing lipsync.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3859>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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