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26 DEC 2011 FFMPEG/AVCONV BENCHMARKS
OTHER FFMPEG/AVCONV BENCHMARKS
21 Nov 2012
8 Oct 2011
OVERVIEW
These are run times of ffmpeg.exe
as downloaded from Zeranoe (FFmpeg.org)
and avconv.exe
as downloaded from
win32.libav.org (libav.org).
If you are not aware of why there are now two different web sites (ffmpeg.org and libav.org)
and two different converters (ffmpeg.exe and avconv.exe),
see the FFmpeg section of my useful utilities page.
To get the run times below, I ran ffmpeg.exe and avconv.exe under Windows 7 on a core i5-670 (3.47 GHz, 2 cores, 4 threads).
The source video is
a 23-second, high-def (720p) video (.mts file) directly from my Panasonic Lumix camera.
As of December 26, 2011, somewhat surprisingly, the 32-bit ffmpeg download from
Zeranoe is the only one
that successfully does all of the conversions below. At least there is now one
version of avconv that will do .webm encoding. That's an improvement over
October 2011.
A frustration I have with ffmpeg (and avconv, to a lesser extent) is that the version numbers
listed on the "live" builds don't match up with the major
version numbers listed on the web site news pages (e.g. 0.7.3, 0.8.x, or 0.9.x).
It would be nice if
the live builds gave some indication of what major and minor version release
they are related to, even if it's a snapshot build.
A version number like N-36088-gdd1fb65 is meaningless to me (and to most other users,
I imagine). At least avconv.exe
gives a more intelligible version number like v0.7-2384-gc65dfac, though I'd still like
an indicator of the minor version number, e.g. v0.7.3-0123-abcdefg. Come on guys. It
can't be that hard.
CONVERTING TO MP4
| Command-line options: |
|
-i myfile.mts -strict experimental -threads <n> -s 640x360 -b:v 1250k -i_qfactor 0.71 -qcomp 0.6 -qmin 10 -qmax 63 -qdiff 4 -trellis 0 -vcodec libx264 -b:a 56k -ar 22050 outfile.mp4 |
Note: The "-strict experimental" command-line option is only necessary for the win32.libav.org downloads due to the aac audio encoding.
Run Times from Dec 26, 2011 Downloads
| Command |
From |
Type |
Version |
gcc ver |
-threads 1 |
-threads 2 |
-threads 3 |
-threads 4 |
| ffmpeg.exe |
zeranoe |
win32 static |
N-36088-gdd1fb65 |
4.6.1 |
26.2 s |
16.7 s |
13.7 s |
12.2 s |
| ffmpeg.exe |
zeranoe |
win64 static |
N-36088-gdd1fb65 |
4.6.2 |
24.7 s |
16.4 s |
12.9 s |
11.5 s |
| avconv.exe |
win32.libav.org |
win32 |
v0.7-2384-gc65dfac |
4.5.2 |
22.2 s |
15.4 s |
11.4 s |
10.7 s |
| avconv.exe |
win32.libav.org |
win32 w/pthreads |
v0.7-2384-gc65dfac |
4.5.2 |
22.3 s |
13.5 s |
37.7 s* |
16.3 s* |
| avconv.exe |
win32.libav.org |
win64 |
v0.7-2384-gc65dfac |
4.5.2 |
n/a** |
* - Note regression in run times with pthreads version.
** - avconv.exe win64 version crashed.
CONVERTING TO WEBM
| Command-line options: |
|
-i myfile.mts -threads <n> -s 640x360 -b:v 1250k -qmax 63 -b:a 56k -ar 22050 -acodec libvorbis outfile.webm
|
Run Times from Dec 26, 2011 Downloads
| Command |
From |
Type |
Version |
gcc ver |
-threads 1 |
-threads 2 |
-threads 3 |
-threads 4 |
| ffmpeg.exe |
zeranoe |
win32 static |
N-36088-gdd1fb65 |
4.6.2 |
24.3 s |
17.9 s |
18.4 s |
18.9 s |
| ffmpeg.exe |
zeranoe |
win64 static |
N-36088-gdd1fb65 |
4.6.2 |
n/a* |
| avconv.exe |
win32.libav.org |
win32 |
v0.7-2384-gc65dfac |
4.5.2 |
85.0 s |
52.2 s |
52.7 s |
46.0 s |
| avconv.exe |
win32.libav.org |
win32 w/pthreads |
v0.7-2384-gc65dfac |
4.5.2 |
n/a** |
| avconv.exe |
win32.libav.org |
win64 |
v0.7-2384-gc65dfac |
4.5.2 |
n/a** |
* - ffmpeg.exe win64 version crashed.
** - win32.libav.org pthread and 64-bit versions did not have .webm encoding.
CONVERTING TO OGG/THEORA
| Command-line options: |
|
-i myfile.mts -threads <n> -s 640x360 -b:v 1250k -qmax 63 -b:a 56k -ar 22050 -acodec libvorbis outfile.ogv
|
Run Times from Dec 26, 2011 Downloads
| Command |
From |
Type |
Version |
gcc ver |
-threads 1 |
-threads 2 |
-threads 3 |
-threads 4 |
| ffmpeg.exe |
zeranoe |
win32 static |
N-36088-gdd1fb65 |
4.6.2 |
19.9 s* |
| ffmpeg.exe |
zeranoe |
win64 static |
N-36088-gdd1fb65 |
4.6.2 |
18.4 s* |
| avconv.exe |
win32.libav.org |
win32 |
v0.7-2384-gc65dfac |
4.5.2 |
n/a** |
| avconv.exe |
win32.libav.org |
win32 w/pthreads |
v0.7-2384-gc65dfac |
4.5.2 |
n/a** |
| avconv.exe |
win32.libav.org |
win64 |
v0.7-2384-gc65dfac |
4.5.2 |
n/a** |
* - Number of threads seems to have no effect.
** - win32.libav.org versions did not have .ogv encoding.
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