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Autres articles (62)
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Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)
Sur d’autres sites (7881)
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convert yuv to mp4 by ffmpeg on android
10 août 2013, par worldaski have to convert yuv to mp4 by ffmpeg on android. When I convert wav to mp4 it works well. but when i convert yuv or yuv + wav to mp4, i got errer message said
Error decoding AAC frame headeranybody knows what happened ?
following is the full debug log
transferYUV2MP4() enter
__transfer_yuv_to_mp4() enter
__transfer_yuv_to_mp4() argv[00/17] = ffmpeg
__transfer_yuv_to_mp4() argv[01/17] = -loglevel
__transfer_yuv_to_mp4() argv[02/17] = debug
__transfer_yuv_to_mp4() argv[03/17] = -y
__transfer_yuv_to_mp4() argv[04/17] = -i
__transfer_yuv_to_mp4() argv[05/17] = /sdcard/111.yuv
__transfer_yuv_to_mp4() argv[06/17] = -i
__transfer_yuv_to_mp4() argv[07/17] = /sdcard/3.wav
__transfer_yuv_to_mp4() argv[08/17] = -c:a
__transfer_yuv_to_mp4() argv[09/17] = aac
__transfer_yuv_to_mp4() argv[10/17] = -strict
__transfer_yuv_to_mp4() argv[11/17] = experimental
__transfer_yuv_to_mp4() argv[12/17] = -b:a
__transfer_yuv_to_mp4() argv[13/17] = 56k
__transfer_yuv_to_mp4() argv[14/17] = -preset
__transfer_yuv_to_mp4() argv[15/17] = ultrafast
__transfer_yuv_to_mp4() argv[16/17] = /sdcard/111.mp4
__run_ffmpeg_main() enter
__run_ffmpeg_main() handle=0xb000f7f8
__run_ffmpeg_main() dlfunc=0x4b5a2728
ffmpeg version 1.2.2
Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 10 2013 16:34:45 with gcc 4.6 (GCC) 20120106 (prerelease)
configuration: --target-os=linux --prefix=./android/armv7-a --sysroot=/Users/pht/android/ndks/android-ndk-r9/platforms/android-8/arch-arm/ --enable-gpl --enable-version3 --disable-shared --enable-static --disable-ffprobe --disable-ffplay --disable-ffserver --disable-network --enable-avformat --enable-avcodec --enable-cross-compile --arch=arm --cc=/Users/pht/android-standalone-toolchain/bin/arm-linux-androideabi-gcc --nm=/Users/pht/android-standalone-toolchain/bin/arm-linux-androideabi-nm --cross-prefix=/Users/pht/android-standalone-toolchain/bin/arm-linux-androideabi- --extra-cflags=' -I../fdk-aac/include -I../x264 -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a ' --extra-ldflags=' -L../fdk-aac/lib -L../x264 -Wl,-rpath-link=/Users/pht/android/ndks/android-ndk-r9/platforms/android-8/arch-arm//usr/lib -L/Users/pht/android/ndks/android-ndk-r9/platforms/andr
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Splitting the commandline.
Reading option '-loglevel' ...
matched as option 'loglevel' (set libav* logging level) with argument 'debug'.
Reading option '-y' ...
matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-i' ...
matched as input file with argument '/sdcard/111.yuv'.
Reading option '-i' ...
matched as input file with argument '/sdcard/3.wav'.
Reading option '-c:a' ...
matched as option 'c' (codec name) with argument 'aac'.
Reading option '-strict' ...
matched as AVOption 'strict' with argument 'experimental'.
Reading option '-b:a' ...
matched as option 'b' (video bitrate (please use -b:v)) with argument '56k'.
Reading option '-preset' ...
matched as AVOption 'preset' with argument 'ultrafast'.
Reading option '/sdcard/111.mp4' ...
matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set libav* logging level) with argument debug.
Applying option y (overwrite output files) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file /sdcard/111.yuv.
Successfully parsed a group of options.
Opening an input file: /sdcard/111.yuv.
Format aac detected only with low score of 1, misdetection possible!
File position before avformat_find_stream_info() is 0
get_buffer() failed
Error decoding AAC frame header.
channel element 2.12 is not allocated
More than one AAC RDB per ADTS frame is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
channel element 3.4 is not allocated
channel element 2.2 is not allocated
Number of scalefactor bands in group (44) exceeds limit (40).
channel element 2.10 is not allocated
channel element 1.15 is not allocated
channel element 3.6 is not allocated
channel element 2.0 is not allocated
channel element 3.3 is not allocated
Sample rate index in program config element does not match the sample rate index configured by the container.
channel element 2.8 is not allocated
Sample rate index in program config element does not match the sample rate index configured by the container.
channel element 3.2 is not allocated
Reserved bit set.
channel element 2.6 is not allocated
channel element 2.1 is not allocated
Dependent coupling is not supported together with LTP
Dependent coupling is not supported together with LTP
Dependent coupling is not supported together with LTP
Dependent coupling is not supported together with LTP
Dependent coupling is not supported together with LTPand the "Dependent coupling..." line loops thousands of times
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ffmpeg error when cutting video (aac bitstream error)
15 août 2013, par user4455I'm trying to use ffmpeg to cut out a 5 minute chunk from a video. For some reason on this particular video I get an error "aac bitstream error". The resulting video is 5 minutes long with no audio or video.
ffmpeg -i testvideo.mp4 -ss 00:05:00 -t 00:10:00 -c:v copy -c:a copy testvideo_5min_test.mp4
ffmpeg version N-55540-g93f4277 Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 14 2013 12:15:34 with gcc 4.3.2 (Debian 4.3.2-1.1)
configuration: --enable-libx264 --enable-gpl --enable-shared --enable-libfaac --enable-nonfree
libavutil 52. 42.100 / 52. 42.100
libavcodec 55. 28.100 / 55. 28.100
libavformat 55. 13.102 / 55. 13.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'testvideo.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
creation_time : 2013-05-10 17:42:36
Duration: 00:35:21.47, start: 0.000000, bitrate: 8684 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 8490 kb/s, 29.97 fps, 29.97 tbr, 29970 tbn, 59.94 tbc
Metadata:
creation_time : 2013-05-10 17:42:36
handler_name : Mainconcept MP4 Video Media Handler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s
Metadata:
creation_time : 2013-05-10 17:42:36
handler_name : Mainconcept MP4 Sound Media Handler
File 'testvideo_5min_test.mp4' already exists. Overwrite ? [y/N] y
Output #0, mp4, to 'testvideo_5min_test.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
encoder : Lavf55.13.102
Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 8490 kb/s, 29.97 fps, 29970 tbn, 29970 tbc
Metadata:
creation_time : 2013-05-10 17:42:36
handler_name : Mainconcept MP4 Video Media Handler
Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 189 kb/s
Metadata:
creation_time : 2013-05-10 17:42:36
handler_name : Mainconcept MP4 Sound Media Handler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mp4 @ 0x8088740] aac bitstream error5886kB time=00:01:13.63 bitrate=8442.8kbits/s
[mp4 @ 0x8088740] aac bitstream error8357kB time=00:04:15.24 bitrate=8612.9kbits/s
[mp4 @ 0x8088740] aac bitstream error6128kB time=00:05:00.25 bitrate=8625.0kbits/s
[mp4 @ 0x8088740] aac bitstream error6415kB time=00:07:12.56 bitrate=8643.7kbits/s
frame=17952 fps=2429 q=-1.0 Lsize= 635531kB time=00:10:00.01 bitrate=8677.0kbits/s
video:621056kB audio:13870kB subtitle:0 global headers:0kB muxing overhead 0.095223% -
FFmpeg CPU utilization
9 août 2013, par user2565986I have a server running Scientific Linux. I'm trying to convert a large amount of videos and want to maximize cpu usage. My ffmpeg version is git-2013-08-06-a68b6ec.
FFmpeg command :
ffmpeg -y -i "$i" -c:v libx264 -preset fast -b:v "$VID_BIT" -threads 0 -c:a libfdk_aac -b:a "$AUD_BIT" -f mp4 /"$OUT_DIR"/"$MD5"top output :
top - 10:47:25 up 3 days, 22:05, 5 users, load average: 1.94, 0.49, 0.16
Tasks: 578 total, 1 running, 574 sleeping, 3 stopped, 0 zombie
Cpu0 : 0.0%us, 0.6%sy, 63.2%ni, 36.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu1 : 0.0%us, 0.6%sy, 60.1%ni, 39.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 0.0%us, 0.3%sy, 59.5%ni, 40.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu3 : 0.0%us, 0.6%sy, 57.1%ni, 42.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu4 : 0.0%us, 0.3%sy, 55.0%ni, 44.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu5 : 0.0%us, 0.6%sy, 50.2%ni, 49.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu6 : 0.0%us, 0.3%sy, 56.4%ni, 43.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu7 : 0.0%us, 0.6%sy, 50.3%ni, 49.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu8 : 0.0%us, 0.6%sy, 47.7%ni, 51.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu9 : 0.3%us, 0.3%sy, 46.8%ni, 52.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu10 : 0.0%us, 0.3%sy, 50.2%ni, 49.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu11 : 0.0%us, 0.7%sy, 49.0%ni, 50.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu12 : 0.0%us, 0.6%sy, 49.4%ni, 50.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu13 : 0.0%us, 0.6%sy, 43.2%ni, 56.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu14 : 0.0%us, 0.3%sy, 44.5%ni, 55.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu15 : 0.0%us, 0.6%sy, 46.3%ni, 53.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu16 : 0.0%us, 0.7%sy, 44.6%ni, 54.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu17 : 0.0%us, 0.3%sy, 43.3%ni, 56.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu18 : 0.0%us, 0.3%sy, 41.6%ni, 58.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu19 : 0.0%us, 0.3%sy, 34.3%ni, 65.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu20 : 0.0%us, 0.6%sy, 32.5%ni, 66.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu21 : 0.0%us, 0.3%sy, 37.9%ni, 61.4%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu22 : 0.0%us, 0.3%sy, 36.9%ni, 62.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu23 : 0.0%us, 1.0%sy, 37.6%ni, 61.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 198345032k total, 10135568k used, 188209464k free, 144212k buffers
Swap: 55640056k total, 0k used, 55640056k free, 5066724k cachedI'm not sure why user usage is at 0% and the niced usage is all I see, but either way I'm looking for a way to get the usage up to 100%. Is there anyway to bolster the usage or is this the best I'm gonna get ?
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