[FFmpeg-trac] #2151(swscale:new): Warning: data is not aligned! This can lead to a speedloss
FFmpeg
trac at avcodec.org
Thu Jan 17 22:39:42 CET 2013
#2151: Warning: data is not aligned! This can lead to a speedloss
--------------------------------+-----------------------------------
Reporter: viric | Owner:
Type: defect | Status: new
Priority: normal | Component: swscale
Version: 1.1 | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
--------------------------------+-----------------------------------
Comment (by viric):
The full log:
{{{
$ ffmpeg -v 9 -loglevel 99 -ss 00:24:50 -i album-familiar-2.mkv -t
00:00:30 -vf "yadif, crop=700:560:20" -vcodec mpeg4 -vtag xvid -qscale:v 4
-ac 1 -acodec libmp3lame -qscale:a 3 /tmp/calaguapa.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
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set libav* logging level)
with argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set libav*
logging level) with argument '99'.
Reading option '-ss' ... matched as option 'ss' (set the start time
offset) with argument '00:24:50'.
Reading option '-i' ... matched as input file with argument 'album-
familiar-2.mkv'.
Reading option '-t' ... matched as option 't' (record or transcode
"duration" seconds of audio/video) with argument '00:00:30'.
Reading option '-vf' ... matched as option 'vf' (video filters) with
argument 'yadif, crop=700:560:20'.
Reading option '-vcodec' ... matched as option 'vcodec' (force video codec
('copy' to copy stream)) with argument 'mpeg4'.
Reading option '-vtag' ... matched as option 'vtag' (force video
tag/fourcc) with argument 'xvid'.
Reading option '-qscale:v' ... matched as option 'qscale' (use fixed
quality scale (VBR)) with argument '4'.
Reading option '-ac' ... matched as option 'ac' (set number of audio
channels) with argument '1'.
Reading option '-acodec' ... matched as option 'acodec' (force audio codec
('copy' to copy stream)) with argument 'libmp3lame'.
Reading option '-qscale:a' ... matched as option 'qscale' (use fixed
quality scale (VBR)) with argument '3'.
Reading option '/tmp/calaguapa.avi' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set libav* logging level) with argument 9.
Successfully parsed a group of options.
Parsing a group of options: input file album-familiar-2.mkv.
Applying option ss (set the start time offset) with argument 00:24:50.
Successfully parsed a group of options.
Opening an input file: album-familiar-2.mkv.
[matroska,webm @ 0x99f7e0] Format matroska,webm probed with size=2048 and
score=100
st:0 removing common factor 1000000 from timebase
st:1 removing common factor 1000000 from timebase
[matroska,webm @ 0x99f7e0] File position before
avformat_find_stream_info() is 669
[h264 @ 0x9a67e0] Using externally provided dimensions
[matroska,webm @ 0x99f7e0] All info found
[matroska,webm @ 0x99f7e0] File position after avformat_find_stream_info()
is 1671349
Input #0, matroska,webm, from 'album-familiar-2.mkv':
Metadata:
ENCODER : Lavf54.59.106
Duration: 03:40:46.48, start: 0.000000, bitrate: 61847 kb/s
Stream #0:0, 8, 1/1000: Video: h264 (High 4:4:4 Predictive), yuv422p,
720x576, 1/50, SAR 1:1 DAR 5:4, 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
Stream #0:1, 3, 1/1000: Audio: flac, 44100 Hz, mono, s16 (default)
Successfully openened the file.
Parsing a group of options: output file /tmp/calaguapa.avi.
Applying option t (record or transcode "duration" seconds of audio/video)
with argument 00:00:30.
Applying option vf (video filters) with argument yadif, crop=700:560:20.
Applying option vcodec (force video codec ('copy' to copy stream)) with
argument mpeg4.
Applying option vtag (force video tag/fourcc) with argument xvid.
Applying option qscale:v (use fixed quality scale (VBR)) with argument 4.
Applying option ac (set number of audio channels) with argument 1.
Applying option acodec (force audio codec ('copy' to copy stream)) with
argument libmp3lame.
Applying option qscale:a (use fixed quality scale (VBR)) with argument 3.
Successfully parsed a group of options.
Opening an output file: /tmp/calaguapa.avi.
y
Successfully openened the file.
[Parsed_yadif_0 @ 0x1b8f0a0] mode:0 parity:-1 deint:0
[crop @ 0x1b8f760] Setting 'w' to value '700'
[crop @ 0x1b8f760] Setting 'h' to value '560'
[crop @ 0x1b8f760] Setting 'x' to value '20'
[buffer @ 0x1b8d3c0] Setting entry with key 'video_size' to value
'720x576'
[buffer @ 0x1b8d3c0] Setting entry with key 'pix_fmt' to value '4'
[buffer @ 0x1b8d3c0] Setting entry with key 'time_base' to value '1/1000'
[buffer @ 0x1b8d3c0] Setting entry with key 'pixel_aspect' to value '1/1'
[buffer @ 0x1b8d3c0] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 0x1b8d3c0] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x1b8d100] w:720 h:576 pixfmt:yuv422p
tb:1/1000 fr:25/1 sar:1/1 sws_param:flags=2
[scale @ 0x1810260] Setting 'w' to value '0'
[scale @ 0x1810260] Setting 'h' to value '0'
[scale @ 0x1810260] Setting 'flags' to value '0x4'
[auto-inserted scaler 0 @ 0x1b90160] w:0 h:0 flags:'0x4' interl:0
[format @ 0x1b8fe20] auto-inserting filter 'auto-inserted scaler 0'
between the filter 'Parsed_crop_1' and the filter 'format'
[Parsed_crop_1 @ 0x1b8f640] w:720 h:576 sar:1/1 -> w:700 h:560 sar:1/1
[auto-inserted scaler 0 @ 0x1b90160] w:700 h:560 fmt:yuv422p sar:1/1 ->
w:700 h:560 fmt:yuv420p sar:1/1 flags:0x4
[abuffer @ 0x1c0b300] Setting entry with key 'time_base' to value
'1/44100'
[abuffer @ 0x1c0b300] Setting entry with key 'sample_rate' to value
'44100'
[abuffer @ 0x1c0b300] Setting entry with key 'sample_fmt' to value 's16'
[abuffer @ 0x1c0b300] Setting entry with key 'channel_layout' to value
'0x4'
[graph 1 input from stream 0:1 @ 0x1810aa0] tb:1/44100 samplefmt:s16
samplerate:44100 chlayout:0x4
[aformat @ 0x1c09420] Setting entry with key 'sample_fmts' to value
's32p,fltp,s16p'
[aformat @ 0x1c09420] Setting entry with key 'sample_rates' to value
'44100,48000,32000,22050,24000,16000,11025,12000,8000'
[aformat @ 0x1c09420] Setting entry with key 'channel_layouts' to value
'0x4'
[audio format for output stream 0:1 @ 0x1c09160] auto-inserting filter
'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the
filter 'audio format for output stream 0:1'
[auto-inserted resampler 0 @ 0x1c12960] chl:mono fmt:s16 r:44100Hz ->
chl:mono fmt:s16p r:44100Hz
[mpeg4 @ 0x1b8dd20] detected 1 logical cores
[mpeg4 @ 0x1b8dd20] intra_quant_bias = 0 inter_quant_bias = -64
[h264 @ 0x18197e0] detected 1 logical cores
Output #0, avi, to '/tmp/calaguapa.avi':
Metadata:
ISFT : Lavf54.59.106
Stream #0:0, 0, 1/25: Video: mpeg4 (xvid / 0x64697678), yuv420p,
700x560 [SAR 1:1 DAR 5:4], 1/25, q=2-31, 200 kb/s, 25 tbn, 25 tbc
(default)
Stream #0:1, 0, 32/1225: 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
[h264 @ 0x18197e0] Using externally provided dimensions
[swscaler @ 0x17fe2e0] Warning: data is not aligned! This can lead to a
speedloss
*** drop!
Last message repeated 14 times
*** drop! 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
dup=0 drop=15
Last message repeated 15 times
*** drop! 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
dup=0 drop=31
Last message repeated 14 times
*** drop! 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
dup=0 drop=46
Last message repeated 14 times
*** drop! 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
dup=0 drop=61
Last message repeated 13 times
*** drop! 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
dup=0 drop=75
Last message repeated 7 times
[libmp3lame @ 0x1b8e5a0] Trying to remove 47 more samples than there are
in the queue
frame= 0 fps=0.0 q=0.0 Lsize= 48kB time=00:00:00.00 bitrate=N/A
dup=0 drop=83
video:0kB audio:35kB subtitle:0 global headers:0kB muxing overhead
36.491072%
Statistics: 25419425 bytes read, 3 seeks
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2151#comment:1>
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