Dňa 26.08.2012 13:15, Carl Eugen Hoyos wrote / napísal(a):
Please note that avconv is known to contain several hundred
regressions over ffmpeg, some of them possibly security relevant, so
it cannot be supported here.
my mistake
is there any way to preserve VFR ?
This does not work for mp4, but I believe it should work
for other containers, please add (ffmpeg) command line
together with complete, uncut console output.
btw. mp4 generally supports vfr (vlc works)
so i installed the ffmpeg from ppa jon-severinsson
the end result is , that the ouput is CFR ,but expected is VFR
the resulting file has length 10:00 but it has frames from much longer
input cca. 18s
ffmpeg -analyzeduration 0 -f mjpeg -i
"http://ip/videostream.cgi?user=admin&pwd=&resolution=32&rate=0"; -vsync
vfr -t 10:00 -vcodec copy -y output.mkv
output:
WARNING: gnome-keyring:: couldn't connect to:
/tmp/keyring-QCVqZz/pkcs11: No such file or directory
ffmpeg version 0.10.4-6:0.10.4-0ubuntu0jon2 Copyright (c) 2000-2012 the
FFmpeg developers
built on Jun 12 2012 23:02:05 with gcc 4.6.3
configuration: --extra-version='6:0.10.4-0ubuntu0jon2' --arch=amd64
--prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --disable-stripping
--enable-vaapi --enable-vdpau --enable-bzlib --enable-gnutls
--enable-libgsm --enable-libschroedinger --enable-libspeex
--enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib
--enable-libvpx --enable-runtime-cpudetect --enable-libfreetype
--enable-libpulse --enable-vaapi --enable-librtmp --enable-gpl
--enable-postproc --enable-x11grab --enable-libcdio --enable-version3
--enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared
--disable-static
avutil configuration: --extra-version='6:0.10.4.0ubuntu0jon2.2'
--arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu
--disable-stripping --enable-vaapi --enable-vdpau --enable-bzlib
--enable-gnutls --enable-libgsm --enable-libschroedinger
--enable-libspeex --enable-libtheora --enable-libvorbis
--enable-pthreads --enable-zlib --enable-libvpx
--enable-runtime-cpudetect --enable-libfreetype --enable-libpulse
--enable-vaapi --enable-libopenjpeg --enable-libmp3lame --enable-librtmp
--enable-frei0r --enable-libopencv --enable-gpl --enable-postproc
--enable-x11grab --enable-libcdio --enable-libx264 --enable-version3
--enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libdc1394
--shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
swresample configuration: --extra-version='6:0.10.4.0ubuntu0jon2.2'
--arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu
--disable-stripping --enable-vaapi --enable-vdpau --enable-bzlib
--enable-gnutls --enable-libgsm --enable-libschroedinger
--enable-libspeex --enable-libtheora --enable-libvorbis
--enable-pthreads --enable-zlib --enable-libvpx
--enable-runtime-cpudetect --enable-libfreetype --enable-libpulse
--enable-vaapi --enable-libopenjpeg --enable-libmp3lame --enable-librtmp
--enable-frei0r --enable-libopencv --enable-gpl --enable-postproc
--enable-x11grab --enable-libcdio --enable-libx264 --enable-version3
--enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libdc1394
--shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
[mjpeg @ 0x815440] max_analyze_duration 0 reached at 0
[mjpeg @ 0x815440] Estimating duration from bitrate, this may be inaccurate
Input #0, mjpeg, from
'http://ip/videostream.cgi?user=admin&pwd=&resolution=32&rate=0':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj422p, 640x480, 25 tbr, 1200k tbn, 25 tbc
Output #0, matroska, to 'output.mkv':
Metadata:
encoder : Lavf53.32.100
Stream #0:0: Video: mjpeg, yuvj422p, 640x480, q=2-31, 1k tbn, 1200k tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 250 fps= 13 q=-1.0 Lsize= 9973kB time=00:00:09.96
bitrate=8202.4kbits/s
video:9962kB audio:0kB global headers:0kB muxing overhead 0.102927%
thanks for help.
M.
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