[FFmpeg-trac] #2151(swscale:new): Warning: data is not aligned! This can lead to a speedloss
FFmpeg
trac at avcodec.org
Thu Jan 17 22:33:52 CET 2013
#2151: Warning: data is not aligned! This can lead to a speedloss
---------------------------------+----------------------------------
Reporter: viric | Type: defect
Status: new | Priority: normal
Component: swscale | Version: 1.1
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
---------------------------------+----------------------------------
Summary of the bug:
How to reproduce:
{{{
% ffmpeg -ss 01:05:30 -i album-familiar-1.mkv -t 00:07:28 -vf "yadif,
crop=690:560:16" -vcodec mpeg4 -vtag xvid -qscale:v 4 -ac 1 -acodec
libmp3lame -qscale:a 3 /tmp/tieta2.avi
ffmpeg version 1.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Jan 13 2013 22:22:02 with gcc 4.6.3 (GCC)
configuration: --disable-static --prefix=/nix/store
/1pja3gxi62f2hjwyww67ys84mxqfjgwm-ffmpeg-1.1 --enable-gpl --enable-
postproc --enable-swscale --disable-ffplay --enable-shared --enable-
runtime-cpudetect --enable-libmp3lame --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
--enable-vdpau
libavutil 52. 13.100 / 52. 13.100
libavcodec 54. 86.100 / 54. 86.100
libavformat 54. 59.106 / 54. 59.106
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 32.100 / 3. 32.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, matroska,webm, from 'album-familiar-1.mkv':
Metadata:
ENCODER : Lavf54.59.106
Duration: 03:04:49.44, start: 0.000000, bitrate: 65334 kb/s
Stream #0:0: Video: h264 (High 4:4:4 Predictive), yuv422p, 720x576,
SAR 1:1 DAR 5:4, 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
Stream #0:1: Audio: flac, 44100 Hz, stereo, s16 (default)
Output #0, avi, to '/tmp/tieta2.avi':
Metadata:
ISFT : Lavf54.59.106
Stream #0:0: Video: mpeg4 (xvid / 0x64697678), yuv420p, 690x560 [SAR
1:1 DAR 69:56], q=2-31, 200 kb/s, 25 tbn, 25 tbc (default)
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, mono, s16p
(default)
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mpeg4)
Stream #0:1 -> #0:1 (flac -> libmp3lame)
Press [q] to stop, [?] for help
[swscaler @ 0x752040] Warning: data is not aligned! This can lead to a
speedloss
frame= 6 fps=0.0 q=4.0 Lsize= 91kB time=00:00:00.24
bitrate=3118.7kbits/s dup=0 drop=7
video:75kB audio:6kB subtitle:0 global headers:0kB muxing overhead
12.867035%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2151>
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