[FFmpeg-trac] #3020(avfilter:new): FFMPEG performance need optimize when transcoding to mjpeg
FFmpeg
trac at avcodec.org
Wed Oct 2 12:36:37 CEST 2013
#3020: FFMPEG performance need optimize when transcoding to mjpeg
-------------------------------------+-------------------------------------
Reporter: kaifu.tang | Owner:
Type: enhancement | Status: new
Priority: normal | Component: avfilter
Version: 2.0.1 | Resolution:
Keywords: transcoder, | Blocked By:
mjpeg, avfilter, performance | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by kaifu.tang):
Replying to [comment:2 richardpl]:
> Why are you using different containers?
> If you want to do real benchmark use '-f null -'
I tested it again following your advice with attached stream, but this
issue reproduced yet.
$ time ./ffmpeg -i test.mp4 -vcodec mjpeg -r 0.2 -f null -
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 1 2013 00:27:45 with gcc 4.3.2 (4.3.2-tdm-1 for MinGW)
configuration: --disable-static --enable-shared --enable-gpl --enable-
version3
--enable-nonfree --disable-ffserver --enable-memalign-hack --enable-
pthreads --
disable-txtpages
libavutil 52. 46.100 / 52. 46.100
libavcodec 55. 33.101 / 55. 33.101
libavformat 55. 18.104 / 55. 18.104
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 88.100 / 3. 88.100
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2013-04-09 11:10:32
copyright :
copyright-eng :
Duration: 00:03:53.87, start: 0.000000, bitrate: 89 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt709)
, 1280x960, 846 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
Metadata:
creation_time : 2013-04-09 11:10:30
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 47
kb/s (default)
Metadata:
creation_time : 2013-04-09 11:10:32
handler_name : GPAC ISO Audio Handler
[swscaler @ 02f309e0] deprecated pixel format used, make sure you did set
range
correctly
Output #0, null, to 'pipe:':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
copyright-eng :
copyright :
encoder : Lavf55.18.104
Stream #0:0(und): Video: mjpeg, yuvj420p, 1280x960, q=2-31, 200 kb/s,
90k tb
n, 0.20 tbc (default)
Metadata:
creation_time : 2013-04-09 11:10:30
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
(defaul
t)
Metadata:
creation_time : 2013-04-09 11:10:32
handler_name : GPAC ISO Audio Handler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mjpeg)
Stream #0:1 -> #0:1 (aac -> pcm_s16le)
Press [q] to stop, [?] for help
frame= 3 fps=0.0 q=0.0 size=N/A time=00:00:05.00 bitrate=N/A dup=0
drop=25
frame= 4 fps=3.9 q=0.0 size=N/A time=00:00:10.00 bitrate=N/A dup=0
drop=57
frame= 4 fps=2.6 q=0.0 size=N/A time=00:00:10.00 bitrate=N/A dup=0
drop=90
frame= 4 fps=2.0 q=0.0 size=N/A time=00:00:10.00 bitrate=N/A dup=0
drop=123
frame= 4 fps=1.6 q=0.0 size=N/A time=00:00:10.00 bitrate=N/A dup=0
drop=158
frame= 5 fps=1.6 q=0.0 size=N/A time=00:00:15.00 bitrate=N/A dup=0
drop=193
frame= 5 fps=1.4 q=0.0 size=N/A time=00:00:15.00 bitrate=N/A dup=0
drop=226
frame= 5 fps=1.2 q=0.0 size=N/A time=00:00:15.00 bitrate=N/A dup=0
drop=260
frame= 5 fps=1.1 q=0.0 size=N/A time=00:00:15.00 bitrate=N/A dup=0
drop=293
frame= 6 fps=1.2 q=0.0 size=N/A time=00:00:20.00 bitrate=N/A dup=0
drop=325
frame= 6 fps=1.1 q=0.0 size=N/A time=00:00:20.00 bitrate=N/A dup=0
drop=358
frame= 6 fps=1.0 q=0.0 size=N/A time=00:00:20.00 bitrate=N/A dup=0
drop=393
frame= 7 fps=1.1 q=0.0 size=N/A time=00:00:25.00 bitrate=N/A dup=0
drop=425
frame= 7 fps=1.0 q=0.0 size=N/A time=00:00:25.00 bitrate=N/A dup=0
drop=461
[h264 @ 034243c0] AVC: nal size 19894
Last message repeated 1 times
[h264 @ 034243c0] no frame!
frame= 7 fps=1.0 q=0.0 Lsize=N/A time=00:00:35.00 bitrate=N/A dup=0
drop=474
video:506kB audio:3368kB subtitle:0 global headers:0kB muxing overhead
-100.0005
55%
real 0m7.620s
user 0m0.000s
sys 0m0.030s
$ time ./ffmpeg -i test.mp4 -vcodec msmpeg4 -r 0.2 -f null -
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 1 2013 00:27:45 with gcc 4.3.2 (4.3.2-tdm-1 for MinGW)
configuration: --disable-static --enable-shared --enable-gpl --enable-
version3
--enable-nonfree --disable-ffserver --enable-memalign-hack --enable-
pthreads --
disable-txtpages
libavutil 52. 46.100 / 52. 46.100
libavcodec 55. 33.101 / 55. 33.101
libavformat 55. 18.104 / 55. 18.104
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 88.100 / 3. 88.100
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2013-04-09 11:10:32
copyright :
copyright-eng :
Duration: 00:03:53.87, start: 0.000000, bitrate: 89 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt709)
, 1280x960, 846 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
Metadata:
creation_time : 2013-04-09 11:10:30
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 47
kb/s (default)
Metadata:
creation_time : 2013-04-09 11:10:32
handler_name : GPAC ISO Audio Handler
Output #0, null, to 'pipe:':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
copyright-eng :
copyright :
encoder : Lavf55.18.104
Stream #0:0(und): Video: msmpeg4v3 (msmpeg4), yuv420p, 1280x960,
q=2-31, 200
kb/s, 90k tbn, 0.20 tbc (default)
Metadata:
creation_time : 2013-04-09 11:10:30
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
(defaul
t)
Metadata:
creation_time : 2013-04-09 11:10:32
handler_name : GPAC ISO Audio Handler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> msmpeg4)
Stream #0:1 -> #0:1 (aac -> pcm_s16le)
Press [q] to stop, [?] for help
frame= 4 fps=0.0 q=2.0 size=N/A time=00:00:20.00 bitrate=N/A dup=0
drop=149
frame= 5 fps=5.0 q=2.0 size=N/A time=00:00:25.00 bitrate=N/A dup=0
drop=288
frame= 7 fps=4.6 q=2.0 size=N/A time=00:00:35.00 bitrate=N/A dup=0
drop=420
[h264 @ 037540e0] AVC: nal size 19894
Last message repeated 1 times
[h264 @ 037540e0] no frame!
frame= 7 fps=4.2 q=2.0 Lsize=N/A time=00:00:35.00 bitrate=N/A dup=0
drop=474
video:458kB audio:3368kB subtitle:0 global headers:0kB muxing overhead
-100.0005
61%
real 0m1.985s
user 0m0.000s
sys 0m0.016s
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3020#comment:3>
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