[FFmpeg-trac] #3651(avcodec:open): UT Video Codec is inefficient compared to libutvideo
FFmpeg
trac at avcodec.org
Sat May 24 11:20:50 CEST 2014
#3651: UT Video Codec is inefficient compared to libutvideo
-------------------------------------+-----------------------------------
Reporter: Zerowalker | Owner:
Type: enhancement | Status: open
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: utvideo | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
-------------------------------------+-----------------------------------
Comment (by cehoyos):
I tested with the following file:
{{{
$ ffmpeg -f lavfi -i testsrc=s=hd1080 -vcodec utvideo -t 60 out.avi
}}}
{{{
$ time ./ffmpeg -benchmark -i out.avi -f null -
ffmpeg version N-63402-g308188b Copyright (c) 2000-2014 the FFmpeg
developers
built on May 24 2014 11:12:43 with gcc 4.7 (SUSE Linux)
configuration: --cc='gcc -m32'
libavutil 52. 86.100 / 52. 86.100
libavcodec 55. 64.100 / 55. 64.100
libavformat 55. 40.100 / 55. 40.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 5.100 / 4. 5.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
Input #0, avi, from 'out.avi':
Metadata:
encoder : Lavf55.40.100
Duration: 00:01:00.00, start: 0.000000, bitrate: 171716 kb/s
Stream #0:0: Video: utvideo (ULRG / 0x47524C55), rgb24, 1920x1080,
171824 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf55.40.100
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 1920x1080
[SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc55.64.100 rawvideo
Stream mapping:
Stream #0:0 -> #0:0 (utvideo -> rawvideo)
Press [q] to stop, [?] for help
[null @ 0xb1fca40] Encoder did not produce proper pts, making some up.
frame= 1500 fps=162 q=0.0 Lsize=N/A time=00:01:00.00 bitrate=N/A
video:94kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 19215359412273152.000000%
bench: utime=69.881s
bench: maxrss=71984kB
real 0m9.276s
user 1m9.883s
sys 0m0.707s
}}}
{{{
$ time ./ffmpeg -benchmark -i out.avi -f null -
ffmpeg version N-63402-g308188b Copyright (c) 2000-2014 the FFmpeg
developers
built on May 24 2014 11:17:02 with gcc 4.7 (SUSE Linux)
configuration: --cc='gcc -m32' cxx='gcc -m32' --enable-libutvideo
--disable-decoder=utvideo --enable-gpl
libavutil 52. 86.100 / 52. 86.100
libavcodec 55. 64.100 / 55. 64.100
libavformat 55. 40.100 / 55. 40.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 5.100 / 4. 5.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, avi, from 'out.avi':
Metadata:
encoder : Lavf55.40.100
Duration: 00:01:00.00, start: 0.000000, bitrate: 171716 kb/s
Stream #0:0: Video: utvideo (ULRG / 0x47524C55), bgr24, 1920x1080,
171824 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf55.40.100
Stream #0:0: Video: rawvideo (BGR[24] / 0x18524742), bgr24, 1920x1080
[SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc55.64.100 rawvideo
Stream mapping:
Stream #0:0 -> #0:0 (libutvideo -> rawvideo)
Press [q] to stop, [?] for help
[null @ 0xac54c00] Encoder did not produce proper pts, making some up.
frame= 1500 fps=133 q=0.0 Lsize=N/A time=00:01:00.00 bitrate=N/A
video:94kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 19215359412273152.000000%
bench: utime=40.733s
bench: maxrss=24320kB
real 0m11.317s
user 0m40.739s
sys 0m2.059s
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3651#comment:9>
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