[FFmpeg-trac] #3019(avfilter:new): fieldmatch + decimate causes out-of-sync audio
FFmpeg
trac at avcodec.org
Wed Oct 2 17:29:41 CEST 2013
#3019: fieldmatch + decimate causes out-of-sync audio
-------------------------------------+-------------------------------------
Reporter: | Owner:
spookybathtub | Status: new
Type: defect | Component: avfilter
Priority: normal | Resolution:
Version: 2.0.1 | Blocked By:
Keywords: pullup | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by spookybathtub):
Same thing happens with mpeg4. I will try git later, I've been using
macports because it's so easy.
{{{
ffmpeg -ss 00:02:00 -i NCIS.ts -t 30 -vf "fieldmatch,
yadif=deint=interlaced, decimate" -pix_fmt yuv420p -acodec copy -vcodec
mpeg4 ncis-mpeg4.mkv
ffmpeg version 2.0.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 25 2013 06:03:35 with Apple clang version 4.1
(tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
configuration: --prefix=/opt/local --enable-swscale --enable-avfilter
--enable-avresample --enable-libmp3lame --enable-libvorbis --enable-
libopus --enable-libtheora --enable-libschroedinger --enable-libopenjpeg
--enable-libmodplug --enable-libvpx --enable-libspeex --enable-libass
--enable-libbluray --enable-gnutls --enable-libfreetype --disable-
outdev=xv --mandir=/opt/local/share/man --enable-shared --enable-pthreads
--cc=/usr/bin/clang --arch=x86_64 --enable-yasm --enable-gpl --enable-
postproc --enable-libx264 --enable-libxvid
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.102 / 55. 18.102
libavformat 55. 12.100 / 55. 12.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 79.101 / 3. 79.101
libavresample 1. 1. 0 / 1. 1. 0
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Input #0, mpegts, from 'NCIS.ts':
Duration: 00:58:56.86, start: 10892.598633, bitrate: 11280 kb/s
Program 258
Stream #0:0[0xe0]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn,
59.94 tbc
Stream #0:1[0x80](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
5.1(side), fltp, 384 kb/s
Stream #0:2[0x81](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
mono, fltp, 96 kb/s (visual impaired)
Output #0, matroska, to 'ncis-mpeg4.mkv':
Metadata:
encoder : Lavf55.12.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1920x1080 [SAR
1:1 DAR 16:9], q=2-31, 200 kb/s, 1k tbn, 23.98 tbc
Stream #0:1(eng): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz,
5.1(side), 384 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video -> mpeg4)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Frame #138 at 5.39704 is still interlacedB time=00:00:04.74
bitrate=2319.6kbits/s
frame= 720 fps= 26 q=31.0 Lsize= 6871kB time=00:00:30.03
bitrate=1874.3kbits/s
video:5455kB audio:1401kB subtitle:0 global headers:0kB muxing overhead
0.207562%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3019#comment:3>
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