[FFmpeg-trac] #2028(undetermined:new): No Audio in output file if -ss is specified after -i in newer builds
FFmpeg
trac at avcodec.org
Thu Dec 13 23:39:07 CET 2012
#2028: No Audio in output file if -ss is specified after -i in newer builds
-------------------------------------+-------------------------------------
Reporter: ramitbhalla | Owner:
Type: defect | Status: new
Priority: important | Component:
Version: unspecified | undetermined
Keywords: regression | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* keywords: => regression
Comment:
I am unable to reproduce this problem:
{{{
$ ffmpeg -i test.ts -vcodec copy -acodec copy -ss 30 -t 15 out.ts
ffmpeg version N-47781-g4391262 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 13 2012 00:29:04 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 12.100 / 52. 12.100
libavcodec 54. 79.102 / 54. 79.102
libavformat 54. 49.101 / 54. 49.101
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 27.101 / 3. 27.101
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x2fbc280] max_analyze_duration 5000000 reached at 5016000
Input #0, mpegts, from 'test.ts':
Duration: 00:02:00.06, start: 1.400000, bitrate: 4219 kb/s
Program 1
Metadata:
service_name : CBBC Channel
service_provider: CBBC Channel
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
stereo, s16p, 256 kb/s
Output #0, mpegts, to 'out.ts':
Metadata:
encoder : Lavf54.49.101
Stream #0:0: Video: mpeg2video ([2][0][0][0] / 0x0002), yuv420p,
720x576 [SAR 64:45 DAR 16:9], q=2-31, 25 fps, 90k tbn, 25 tbc
Stream #0:1(eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
stereo, 256 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 356 fps=0.0 q=-1.0 Lsize= 7246kB time=00:00:15.02
bitrate=3951.7kbits/s
video:6214kB audio:469kB subtitle:0 global headers:0kB muxing overhead
8.418032%
}}}
{{{
$ ffmpeg -i out.ts
ffmpeg version N-47781-g4391262 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 13 2012 00:29:04 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 12.100 / 52. 12.100
libavcodec 54. 79.102 / 54. 79.102
libavformat 54. 49.101 / 54. 49.101
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 27.101 / 3. 27.101
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x22d3280] max_analyze_duration 5000000 reached at 5016000
Input #0, mpegts, from 'out.ts':
Duration: 00:00:15.06, start: 1.400000, bitrate: 3941 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
stereo, s16p, 256 kb/s
At least one output file must be specified
}}}
Audio is recognized in the remuxed file and playback works fine.
Or do I miss something?
{{{
$ md5sum test.ts out.ts
4777c5a4371585955527cec8d7805446 test.ts
762cfa9d19ce82144417ee620d698966 out.ts
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2028#comment:1>
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