Salut à tous!
J’ai une série d’images qui va de «courant-000.png» à «courant-300.png», à partir de laquelle je dois produire une vidéo.
J’ai donc réalisé la commande suivante :
$ ffmpeg -f image2 -i courant-%03d.png courant.mpg
ffmpeg version 2.6.4 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.1.1 (GCC) 20150618 (Red Hat 5.1.1-4)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
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
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from 'courant-%03d.png':
Duration: 00:00:12.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, pal8, 1000x876 [SAR 72:72 DAR 250:219], 25 fps, 25 tbr, 25 tbn, 25 tbc
File 'courant.mpg' already exists. Overwrite ? [y/N] y
[mpeg @ 0x13026a0] VBV buffer size not set, using default size of 130KB
If you want the mpeg file to be compliant to some specification
Like DVD, VCD or others, make sure you set the correct buffer size
Output #0, mpeg, to 'courant.mpg':
Metadata:
encoder : Lavf56.25.101
Stream #0:0: Video: mpeg1video, yuv420p, 1000x876 [SAR 1:1 DAR 250:219], q=2-31, 200 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc56.26.100 mpeg1video
Stream mapping:
Stream #0:0 -> #0:0 (png (native) -> mpeg1video (native))
Press [q] to stop, [?] for help
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[mpeg @ 0x13026a0] buffer underflow st=0 bufi=413011 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=415052 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=415052 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=417093 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=417093 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=419134 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=419134 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=421175 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=421175 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=423216 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=423216 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=425257 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=425257 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=427298 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=427298 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=429339 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=429339 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=431380 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=431380 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=433421 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=433421 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=435462 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=435462 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=437503 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=437503 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=439544 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=439544 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=441585 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=441585 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=443626 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=443626 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=445667 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=445667 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=447708 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=447708 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=449749 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=449749 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=451790 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=451790 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=453831 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=453831 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=455872 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=455872 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=457913 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=457913 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=459954 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=459954 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=461995 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=461995 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=464036 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=464036 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=466077 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=466077 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=468118 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=468118 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=470159 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=470159 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=472200 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=472200 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=474241 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=474241 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=476282 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=476282 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=478323 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=478323 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=480364 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=480364 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=482405 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=482405 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=484446 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=484446 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=486487 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=486487 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=488528 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=488528 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=490569 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=490569 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=492610 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=492610 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=494651 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=494651 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=496692 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=496692 size=499267
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=498733 size=499267
[mpeg @ 0x13026a0] packet too large, ignoring buffer limits to mux it
[mpeg @ 0x13026a0] buffer underflow st=0 bufi=498733 size=499267
frame= 111 fps=0.0 q=31.0 size= 2752kB time=00:00:04.36 bitrate=5170.7kbits/frame= 231 fps=230 q=31.0 size= 4736kB time=00:00:09.16 bitrate=4235.5kbits/frame= 301 fps=234 q=24.8 Lsize= 5912kB time=00:00:12.00 bitrate=4035.9kbits/s
video:5885kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.462595%
J’obtiens bien une vidéo, mais ça passe trop vite, il faudrait que les images restent plus longtemps. Ce qui serait bien, c’est de passer à 10 images par seconde. Du coup, j’ai tenté la commande suivante :
$ ffmpeg -r 10 -f image2 -i courant-%03d.png courant.mpg
ffmpeg version 2.6.4 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.1.1 (GCC) 20150618 (Red Hat 5.1.1-4)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
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
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from 'courant-%03d.png':
Duration: 00:00:30.10, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, pal8, 1000x876 [SAR 72:72 DAR 250:219], 10 fps, 10 tbr, 10 tbn, 10 tbc
File 'courant.mpg' already exists. Overwrite ? [y/N] y
[mpeg1video @ 0xa6b4c0] MPEG1/2 does not support 10/1 fps
Output #0, mpeg, to 'courant.mpg':
Stream #0:0: Video: mpeg1video, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 10 fps
Metadata:
encoder : Lavc56.26.100 mpeg1video
Stream mapping:
Stream #0:0 -> #0:0 (png (native) -> mpeg1video (native))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Comme on le voit, ça provoque une erreur.
J’ai tenté avec 0.1 comme valeur pour «-r», ainsi qu’avec l’option «-framerate», toujours la même erreur.
Après, ce qui compte, c’est que j’obtienne une vidéo en plaçant ces images au rythme de une par dixième de seconde, je ne suis pas nécessairement attaché à Ffmpeg : est-ce que quelqu’un a une idée permettant d’obtenir ce résultat?
À bientôt.
Le Farfadet Spatial