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Autres articles (72)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
MediaSPIP : Modification des droits de création d’objets et de publication définitive
11 novembre 2010, parPar défaut, MediaSPIP permet de créer 5 types d’objets.
Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...)
Sur d’autres sites (6033)
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Android.mk include ffmpeg and Opencv
28 janvier 2013, par Markthis is my project situation : I compiled ffmpeg in windows using this tutorial and I imported the ffmpeg folder generated inside my android project (under jni folder).
In my project I have a jni_part.cpp where I inserted my jni function to operate with opencv.
In my Android.mk I'm using the code below to import opencv and compile the jni_part.cppinclude $(CLEAR_VARS)
include ../../sdk/native/jni/OpenCV.mk
LOCAL_MODULE := mixed_sample
LOCAL_SRC_FILES := jni_part.cpp
LOCAL_LDLIBS += -llog -ldl
LOCAL_SHARED_LIBRARY := ffmpeg-prebuilt
include $(BUILD_SHARED_LIBRARY)But what code I should use to import also ffmpeg ? I tried to use this code :
include $(CLEAR_VARS)
LOCAL_MODULE := ffmpeg-prebuilt
LOCAL_SRC_FILES := ffmpeg-0.8/android/armv7-a/libffmpeg.so
LOCAL_EXPORT_C_INCLUDES := ffmpeg-0.8/android/armv7-a/include/
LOCAL_EXPORT_LDLIBS := ffmpeg-0.8/android/armv7-a/libffmpeg.so
LOCAL_PRELINK_MODULE := true
include $(PREBUILT_SHARED_LIBRARY)but if from mu jni_part.cpp code I try to include the file "#include " I get this error :
**** Build of configuration Default for project OpenCV Tutorial 4 - Mix Java+Native OpenCV ****
C:\android-ndk-r8c\ndk-build.cmd
Prebuilt : libffmpeg.so <= jni/ffmpeg-0.8/android/armv7-a/
Install : libffmpeg.so => libs/armeabi-v7a/libffmpeg.so
"Compile++ thumb : mixed_sample <= jni_part.cpp
jni/jni_part.cpp:24:32: fatal error: libavutil/avstring.h: No such file or directory
compilation terminated.
make: *** [obj/local/armeabi-v7a/objs/mixed_sample/jni_part.o] Error 1
**** Build Finished ****Someone could help me please ? I need to do this to include ffmpeg codec with the hope to use the function cvCaptureFromAVi...
Thanks in advance -
How to pass command line arguments to FFMpeg in iOS
23 septembre 2014, par Arif NadeemThis is a beginner question, since I am new to iOS(I started it today), so please pardon my ignorance and lack of iOS knowledge.
After building and successfully using FFMpeg for Android I wanted to do the same for iOS.
So I built FFMpeg successfully for iOS by following this link, but after all that pain I am confused as how to use FFMpeg in iOS, I mean how can I pass command line arguments tolibffmpeg.afile ?I am assuming that there must be a way to run the .a file as an executable and then pass command line arguments and hope for FFMpeg to do the magic, I did the same in Android and it worked beautifully.
I am also aware that I can use ffmpeg.c class and use its main method, but the question remains ; how do I pass those command line arguments ?
Is there something I am supposed to be aware of here, is the thing what I am doing now correct or am I falling short on my approach ?
I wanted to mix two audio files, so the command for doing that would be
ffmpeg -i firstSound.wav -i secondSound.wav -filter_complex amix=inputs=2:duration=longest finalOutput.wav, how do I do the same in iOS ?Can someone please shed some light on this ?
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Using FFmpeg to encode 2pass mp4
30 juin 2016, par Erin.YangI am trying to use FFmpeg to encode my 4K mp4 file to a 2pass 265 mp4 file for the purposes of testing. I am new to video compression and hope I’m making a simple mistake that someone can correct.
All infos in command line as below :
C:\Ying\FF>C:\Ying\FF\ffmpeg.exe -y -i C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4 -preset veryslow -x265-params pass=1 -vcodec hevc -b:v 15M -acodec libvo
_aacenc -b:a 128K C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4
ffmpeg version N-74286-ge5774f2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.9.3 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontco
nfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-l
ibfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-am
rwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-lib
twolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --en
able-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 54. 30.100 / 54. 30.100
libavcodec 56. 57.100 / 56. 57.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 32.100 / 5. 32.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : X-MEN__DAYS_OF_FUTURE_PAST.Title800
encoder : Lavf56.40.101
Duration: 00:00:50.01, start: 0.000000, bitrate: 11067 kb/s
Chapter #0:0: start 0.000000, end 50.000000
Metadata:
title : (26)01:17:27:726
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], 11492 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (de
fault)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:2(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
Metadata:
handler_name : SubtitleHandler
x265 [info]: HEVC encoder version 1.7
x265 [info]: build info [Windows][GCC 4.9.2][64 bit] 8bpp
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
x265 [info]: Main profile, Level-5 (Main tier)
x265 [info]: Thread pool created using 32 threads
x265 [info]: frame threads / pool features : 8 / wpp(34 rows)
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 3 inter / 3 intra
x265 [info]: ME / range / subpel / merge : dia / 57 / 2 / 1
x265 [info]: Keyframe min / max / scenecut : 25 / 250 / 40
x265 [info]: Lookahead / bframes / badapt : 40 / 8 / 2
x265 [info]: b-pyramid / weightp / weightb / refs: 1 / 1 / 1 / 1
x265 [info]: AQ: mode / str / qg-size / cu-tree : 1 / 1.0 / 64 / 1
x265 [info]: Rate Control / qCompress : ABR-15000 kbps / 0.60
x265 [info]: tools: rd=2 psy-rd=0.30 rdoq=2 psy-rdoq=1.00 early-skip signhide
x265 [info]: tools: tmvp b-intra fast-intra strong-intra-smoothing deblock sao
x265 [info]: tools: stats-write
Output #0, mp4, to 'C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : X-MEN__DAYS_OF_FUTURE_PAST.Title800
encoder : Lavf56.40.101
Chapter #0:0: start 0.000000, end 50.000000
Metadata:
title : (26)01:17:27:726
Stream #0:0(und): Video: hevc (libx265) ([35][0][0][0] / 0x0023), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 15000 kb/s, 30 fps, 15360 tbn, 30
tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc56.57.100 libx265
Stream #0:1(und): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc56.57.100 libvo_aacenc
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))
Press [q] to stop, [?] for help
frame= 1502 fps=2.6 q=-0.0 Lsize= 100652kB time=00:00:50.01 bitrate=16485.9kbits/s dup=75 drop=0
video:99814kB audio:782kB subtitle:0kB other streams:0kB global headers:1kB muxing overhead: 0.054657%
x265 [info]: frame I: 11, Avg QP:13.26 kb/s: 59293.48
x265 [info]: frame P: 443, Avg QP:15.21 kb/s: 33977.10
x265 [info]: frame B: 1048, Avg QP:18.35 kb/s: 8420.64
x265 [info]: global : 1502, Avg QP:17.39 kb/s: 16330.84
x265 [info]: Weighted P-Frames: Y:4.5% UV:4.5%
x265 [info]: Weighted B-Frames: Y:1.9% UV:1.6%
x265 [info]: consecutive B-frames: 23.8% 11.9% 14.8% 22.9% 17.8% 7.0% 0.0% 0.0% 1.8%
C:\Ying\FF>C:\Ying\FF\ffmpeg.exe -y -i C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4 -preset veryslow -x265-params pass=2 -vcodec hevc -b:v 15M -acodec libvo
_aacenc -b:a 128K C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4
ffmpeg version N-74286-ge5774f2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.9.3 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontco
nfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-l
ibfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-am
rwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-lib
twolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --en
able-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 54. 30.100 / 54. 30.100
libavcodec 56. 57.100 / 56. 57.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 32.100 / 5. 32.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : X-MEN__DAYS_OF_FUTURE_PAST.Title800
encoder : Lavf56.40.101
Duration: 00:00:50.01, start: 0.000000, bitrate: 11067 kb/s
Chapter #0:0: start 0.000000, end 50.000000
Metadata:
title : (26)01:17:27:726
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], 11492 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (de
fault)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:2(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
Metadata:
handler_name : SubtitleHandler
x265 [info]: HEVC encoder version 1.7
x265 [info]: build info [Windows][GCC 4.9.2][64 bit] 8bpp
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
x265 [info]: Main profile, Level-6 (Main tier)
x265 [info]: Thread pool created using 32 threads
x265 [info]: frame threads / pool features : 8 / wpp(34 rows)
x265 [error]: statistics are damaged at line 1495, parser out=1
[libx265 @ 0000000001e97d00] Cannot open libx265 encoder.
Output #0, mp4, to 'C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : X-MEN__DAYS_OF_FUTURE_PAST.Title800
encoder : Lavf56.40.101
Chapter #0:0: start 0.000000, end 50.000000
Metadata:
title : (26)01:17:27:726
Stream #0:0(und): Video: hevc, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 30 fps (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc56.57.100 libx265
Stream #0:1(und): Audio: aac, 0 channels, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc56.57.100 libvo_aacenc
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or heightMediaInfo :
General
Complete name : E:\4K\2ndRound\Xman-4K_50sec_3840x2160.mp4.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 66.0 MiB
Duration : 50s 6ms
Overall bit rate : 11.1 Mbps
Movie name : X-MEN__DAYS_OF_FUTURE_PAST.Title800
Writing application : Lavf56.40.101
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 47s 567ms
Bit rate : 11.5 Mbps
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.046
Stream size : 65.2 MiB (99%)
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 50s 6ms
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 781 KiB (1%)
Menu #1
ID : 3
Codec ID : text
Duration : 50s 0ms
Language : English
Menu #2
00:00:00.000 : (26)01:17:27:726
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