[FFmpeg-trac] #2307(undetermined:new): Stream segmenter bug if total recorded length > 12 hours
FFmpeg
trac at avcodec.org
Wed Mar 27 10:52:01 CET 2013
#2307: Stream segmenter bug if total recorded length > 12 hours
-------------------------------------+-------------------------------------
Reporter: dgillier | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: 1.1.3 | undetermined
Keywords: segment, | Resolution:
duration | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by dgillier):
I tried this evening with testsrc and I got strange behavior:
Command used was :
ffmpeg -f lavfi -i testsrc -f s16le -i /dev/zero -vcodec mpeg4 -vb 400000
-strict -2 -acodec aac -f segment -segment_time 1800 -map 0 -map 1
/mnt/video/tests/test-mp4-%03dt.mp4
I got a file per minute instead of a file per 30 minutes (1800 seconds),
but I have in the description of the file (true for all files), a 30
minutes duration ???:
ffmpeg -i /mnt/video/tests/test-mp4-998t.mp4
ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
built on Mar 19 2013 15:08:09 with gcc 4.4.6 (GCC) 20120305 (Red Hat
4.4.6-4)
configuration: --enable-gpl --enable-libmp3lame --enable-libtheora
--enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264
--enable-version3
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 '/mnt/video/tests/test-
mp4-998t.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf54.63.104
Duration: 00:30:00.00, start: 1796400.000000, bitrate: 406 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D),
yuv420p, 320x240 [SAR 1:1 DAR 4:3], 399 kb/s, 25 fps, 25 tbr, 12800 tbn,
25 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono,
fltp, 1 kb/s
Metadata:
handler_name : SoundHandler
I'm going to test with -an
Thanks,
Denis
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2307#comment:14>
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