[MEncoder-users] decreasing of speed encoding with two input files

Goga777 goga777 at bk.ru
Fri Jul 2 22:28:59 CEST 2010


Hi

why with two input files the speed of encoding decreased so drastically - in several times - from 7fps to
1,7 fps 


For example, 

With first file

 mencoder cutted.avi -profile crf
MEncoder SVN-r31566-4.3.3 (C) 2000-2010 MPlayer Team
success: format: 0  data: 0x0 - 0xdbcaa0c
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [dvsd]  720x576  24bpp  25.000 fps  28800.0 kbps (3515.6 kbyte/s)
[V] filefmt:3  fourcc:0x64737664  size:720x576  fps:25.000  ftime:=0.0400
Input fps will be interpreted as 50.000 instead.
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 32000 Hz, 2 ch, s16le, 1024.0 kbit/100.00% (ratio: 128000->128000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [hqdn3d=2:1:2]
Opening video filter: [yadif=1]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffdv] vfm: ffmpeg (FFmpeg DV)
==========================================================================
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0x89e28c0]using unscaled yuv420p -> yuv420p special converter
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2 SSE3 Cache64
x264 [info]: profile Baseline, level 3.1
Writing header...2f ( 1%)  1.19fps Trem:   2min   0mb  A-V:0.002 [0:0]
ODML: vprp aspect is 16384:13107.
Writing header...
ODML: vprp aspect is 16384:13107.
Pos:   0.8s     22f ( 2%)  4.69fps Trem:   3min  74mb  A-V:0.042 [0:144]
Skipping frame!
Pos:   1.1s     32f ( 2%)  5.46fps Trem:   3min  86mb  A-V:0.042 [17563:140]
Skipping frame!
Pos:   1.5s     42f ( 3%)  5.99fps Trem:   3min  94mb  A-V:0.040 [17899:138]
Skipping frame!
^CPos:  21.6s    546f (35%)  7.74fps Trem:   2min 141mb  A-V:0.012 [19566:127]



With second file

mencoder 50.avi -profile crf
MEncoder SVN-r31566-4.3.3 (C) 2000-2010 MPlayer Team
success: format: 0  data: 0x0 - 0x14558028
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [dvsd]  720x576  24bpp  25.000 fps  28800.0 kbps (3515.6 kbyte/s)
[V] filefmt:3  fourcc:0x64737664  size:720x576  fps:25.000  ftime:=0.0400
Input fps will be interpreted as 50.000 instead.
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 32000 Hz, 2 ch, s16le, 1024.0 kbit/100.00% (ratio: 128000->128000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [hqdn3d=2:1:2]
Opening video filter: [yadif=1]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffdv] vfm: ffmpeg (FFmpeg DV)
==========================================================================
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0x89e28c0]using unscaled yuv420p -> yuv420p special converter
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2 SSE3 Cache64
x264 [info]: profile Baseline, level 3.1
Writing header...2f ( 0%)  1.36fps Trem:   3min   0mb  A-V:0.002 [0:0]
ODML: vprp aspect is 16384:13107.
Writing header...
ODML: vprp aspect is 16384:13107.
Pos:   0.8s     22f ( 1%)  5.13fps Trem:   4min  82mb  A-V:0.042 [0:130]
Skipping frame!
Pos:   1.1s     32f ( 1%)  5.92fps Trem:   4min  94mb  A-V:0.042 [12613:129]
Skipping frame!
Pos:   1.5s     42f ( 2%)  6.42fps Trem:   4min  97mb  A-V:0.040 [12252:129]
Skipping frame!
^CPos:  22.2s    560f (24%)  7.54fps Trem:   3min 125mb  A-V:0.012 [11646:128]
Flushing video frames.
Writing index...
Writing header...
ODML: vprp aspect is 16384:13107.

Video stream: 11643.668 kbit/s  (1455458 B/s)  size: 32369396 bytes  22.240 secs  560 frames

Audio stream:  128.255 kbit/s  (16031 B/s)  size: 363219 bytes  22.656 secs
x264 [info]: frame I:5     Avg QP:17.20  size: 62595
x264 [info]: frame P:1107  Avg QP:20.52  size: 28958
x264 [info]: mb I  I16..4: 100.0%  0.0%  0.0%
x264 [info]: mb P  I16..4: 21.1%  0.0%  0.0%  P16..4: 70.0%  0.0%  0.0%  0.0%  0.0%    skip: 8.9%
x264 [info]: coded y,uvDC,uvAC intra: 59.9% 68.1% 26.5% inter: 63.1% 63.8% 22.0%
x264 [info]: i16 v,h,dc,p: 37% 15% 24% 24%
x264 [info]: i8c dc,h,v,p: 30% 19% 37% 14%
x264 [info]: kb/s:11643.67



With both files

mencoder cutted.avi 50.avi -profile crf                                                     
MEncoder SVN-r31566-4.3.3 (C) 2000-2010 MPlayer Team                                                        
success: format: 0  data: 0x0 - 0xdbcaa0c                                                                   
AVI file format detected.                                                                                   
[aviheader] Video stream found, -vid 0                                                                      
[aviheader] Audio stream found, -aid 1                                                                      
VIDEO:  [dvsd]  720x576  24bpp  25.000 fps  28800.0 kbps (3515.6 kbyte/s)                                   
[V] filefmt:3  fourcc:0x64737664  size:720x576  fps:25.000  ftime:=0.0400                                   
Input fps will be interpreted as 50.000 instead.                                                            
==========================================================================                                  
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 32000 Hz, 2 ch, s16le, 1024.0 kbit/100.00% (ratio: 128000->128000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [hqdn3d=2:1:2]
Opening video filter: [yadif=1]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffdv] vfm: ffmpeg (FFmpeg DV)
==========================================================================
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0x89e28c0]using unscaled yuv420p -> yuv420p special converter
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2 SSE3 Cache64
x264 [info]: profile High, level 3.1
Pos:   0.0s     22f ( 1%)  9.19fps Trem:   2min   0mb  A-V:0.042 [0:0]
Skipping frame!
Writing header...5f ( 1%)  7.61fps Trem:   3min   0mb  A-V:0.028 [0:0]
ODML: vprp aspect is 16384:13107.
Setting audio delay to 0.032s.
Writing header...
ODML: vprp aspect is 16384:13107.
Setting audio delay to 0.032s.
Pos:   0.3s     32f ( 2%)  3.94fps Trem:   6min   9mb  A-V:0.042 [0:0]
Skipping frame!
Pos:   0.6s     42f ( 2%)  3.32fps Trem:   7min  14mb  A-V:0.040 [0:146]
Skipping frame!
^CPos:   3.8s    121f ( 7%)  1.79fps Trem:  13min  28mb  A-V:0.012 [4780:132]
Flushing video frames.
Writing index...
Writing header...
ODML: vprp aspect is 16384:13107.
Setting audio delay to 0.032s.

Video stream: 4240.750 kbit/s  (530093 B/s)  size: 2480839 bytes  4.680 secs  121 frames

Audio stream:  132.900 kbit/s  (16612 B/s)  size: 70171 bytes  4.224 secs
x264 [info]: frame I:1     Avg QP:25.56  size: 31763
x264 [info]: frame P:112   Avg QP:25.53  size: 16147
x264 [info]: frame B:121   Avg QP:28.69  size:  5294
x264 [info]: consecutive B-frames:  0.0% 88.4% 11.6%  0.0%
x264 [info]: mb I  I16..4:  5.9% 65.4% 28.8%
x264 [info]: mb P  I16..4:  0.5%  5.0%  0.9%  P16..4: 51.3% 22.4% 11.9%  0.0%  0.0%    skip: 7.9%
x264 [info]: mb B  I16..4:  0.1%  0.5%  0.1%  B16..8: 44.1%  6.2%  1.9%  direct: 7.5%  skip:39.7%  L0:41.2% L1:51.2% BI: 7.6%
x264 [info]: 8x8 transform intra:76.1% inter:59.8%
x264 [info]: coded y,uvDC,uvAC intra: 85.1% 48.4% 5.6% inter: 34.6% 19.5% 0.8%
x264 [info]: i16 v,h,dc,p: 29% 34% 10% 26%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31%  8% 16%  5%  7% 11%  5% 10%  7%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 15% 19%  6%  8% 10%  6%  8%  6%
x264 [info]: i8c dc,h,v,p: 64% 17% 16%  2%
x264 [info]: Weighted P-Frames: Y:11.6%
x264 [info]: ref P L0: 48.6% 29.9% 13.9%  6.6%  1.0%
x264 [info]: ref B L0: 85.5% 14.5%  0.0%
x264 [info]: ref B L1: 98.9%  1.1%
x264 [info]: kb/s:4240.75

my profile


[crf]
profile-desc="crf"
#x264encopts=crf=19::log=3:psnr:ssim:me=umh:subq=7:trellis=1:partitions=all:8x8dct:frameref=5:bframes=3:b_pyramid:weight_b
x264encopts=crf=19::log=3:preset=ultrafast


[default]
ovc=x264=1
oac=faac=1
#nosound=1
faacopts=br=128
vf=yadif=1,hqdn3d=2:1:2
#vf=mcdeint=2:1:10
#vf=tfields=4
fps=50
ofps=50
#vf=pp=lb,hqdn3d=2:1:2
o=out.avi



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