[FFmpeg-trac] #4868(undetermined:new): Unable to perform mpeg-ts lossless copy with seek
FFmpeg
trac at avcodec.org
Sat Sep 19 23:31:42 CEST 2015
#4868: Unable to perform mpeg-ts lossless copy with seek
-------------------------------------+-------------------------------------
Reporter: | Type: defect
bruno.chartier | Priority: normal
Status: new | Version:
Component: | Blocked By:
undetermined | Reproduced by developer: 0
Keywords: mpegts ss |
copy seek |
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
ffmpeg is unable to find frames in the video stream and produces an empty
file.
The mpegts is produced by Fujitsu hardware encoder (MB86H46).
Tried a few versions of ffmpeg, a few from the last 6 months and an old
one from 2010, on Mac and Linux with the same result.
How to reproduce:
sample file uploaded to
ftp://upload.ffmpeg.org/incoming/cannot_copy_video_with_seek.ts
{{{
[xx]$ ~/perso/ffmpeg -ss 5 -i cannot_copy_video_with_seek.ts -c:v copy
-an -y trimmed.ts
ffmpeg version 2.8-tessus Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM
3.5svn)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --as=yasm
--extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl
--enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm
--enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopus --enable-libschroedinger
--enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab
--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-
libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-
libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-
ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Input #0, mpegts, from 'cannot_copy_video_with_seek.ts':
Duration: 00:00:11.67, start: 1.450000, bitrate: 6639 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 60 fps, 60 tbr, 90k tbn, 120 tbc
Output #0, mpegts, to 'trimmed.ts':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 1920x1080
[SAR 1:1 DAR 16:9], q=2-31, 60 fps, 60 tbr, 90k tbn, 90k tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=-1.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4868>
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