[FFmpeg-user] Is it possible to speed up merging-speed from HD to LAN?
Christoph Gerstbauer
christophgerstbauer at gmail.com
Wed Apr 1 16:48:00 CEST 2015
>> ffmpeg -i inputfile.avi -i inputfile.wav
>> -acodec copy -vcodec copy -map 0:0 -map 1:0
>> \\lanshare\folder\targetfile.avi
> (Complete, uncut console output missing. Is this
> the first time you read this line?)
>
> FFmpeg has to seek in the output file.
>
> Carl Eugen
Hello Carl, of course no ;)
I am sorry. But I did not thought that a complete console output would
be important or necessary to my issue.
Here it is:
C:\ffmpegNOA\ffmpeg-2.6-win64\ffmpeg.exe -i D:\temp1\278242_405568.avi
-i D:\temp1\278242_405568.wav -vcodec copy -acodec copy -ma
0:0 -map 1:0 -threads 8 \\FILEMEISTER\video\temp\test.avi
ffmpeg version 2.6 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --disable-network --disable-w32threads
--disable-static --enable-shared --disable-debug --enable-version3
--arch=x86 --target-os=min
w32 --cross-prefix=x86_64-w64-mingw32- --prefix=/usr/local/win64
--enable-runtime-cpudetect --enable-memalign-hack
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
Input #0, avi, from 'D:\temp1\278242_405568.avi':
Metadata:
encoder : Lavf55.19.104
Duration: 00:21:10.64, start: 0.000000, bitrate: 105377 kb/s
Stream #0:0: Video: huffyuv (HFYU / 0x55594648), yuv422p, 720x608,
105376 kb/s, SAR 93:85 DAR 837:646, 25 fps, 25 tbr, 25 tbn, 25 tbc
Guessed Channel Layout for Input Stream #1.0 : 4.0
Input #1, wav, from 'D:\temp1\278242_405568.wav':
Duration: 00:21:10.64, bitrate: 6144 kb/s
Stream #1:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 48000 Hz, 4
channels, flt, 6144 kb/s
File '\\FILEMEISTER\video\temp\test.avi' already exists. Overwrite ? [y/N] y
Output #0, avi, to '\\FILEMEISTER\video\temp\test.avi':
Metadata:
ISFT : Lavf56.25.101
Stream #0:0: Video: huffyuv (HFYU / 0x55594648), yuv422p, 720x608
[SAR 93:85 DAR 837:646], q=2-31, 105376 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 48000 Hz,
4.0, 6144 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 220 fps= 71 q=-1.0 size= 103138kB time=00:00:08.80
bitrate=96011.7kbits/s
The fps merging rate is a 71 FPS as you can see. -> 272Mbit/sec (HD to LAN)
If I do the same from HD to HD the fps are approx 300fps -> 1152Mbit/sec
(HD to HD)
At Filecopy approx. 850Mbit/sec (copy from HD to LAN)
You said "FFmpeg has to seek in the output file."
So it is a permanent writing and reading?
Best Regards
Christoph Gerstbauer
More information about the ffmpeg-user
mailing list