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Autres articles (101)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Organiser par catégorie

    17 mai 2013, par

    Dans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
    Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
    Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (6065)

  • c++, FFMPEG, how to use/set private options ?

    15 avril 2012, par Mat

    I'm trying to get a video c++ video encoder to run. I'm coding in VisualStudio 2010 and use a precompiled version of the library (Zeranoe's FFmpeg Build) from April 2012. Now - the Api doesn't seem to correspond anymore to most references that i find online.

    Particularily I wonder about private options. Through google I find things like this :

    http://ffmpeg.org/pipermail/ffmpeg-cvslog/2011-August/039836.html

    but I don't understand how to access and set those private options that replace the deprecated global ones.

    Any help on this ?

  • ffmpeg blend to exclude the top videos background

    2 février 2016, par user2995705

    I want to blend two videos, the top video named "top.mp4" was combined with some PNG files,but the combined video’s background was black ? why ?

    then i try to overlay the top.mp4 on another video (named bottom.mp4,was capture by android camera with QUALITY_480P)

    but when I use Overlay filter i find the top.mp4 was not transparent and have a black background on the result.mp4.

    I try to use blend filter to combine top.mp4 and bottom.mp4 to exclude the top.mp4’s black background , but i don’t know how to use the blend filter.

    here is my question :
    1.is it possible to combine PNG files to a video and the video has transparent background ? and then just use overlay filter,the result.mp4 will not have a black mask under the top.mp4 ?

    2.if 1 is impossible, how to blend top.mp4 and bottom.mp4 to exclude the black background of top.mp4

    my all output log

    02-02 19:34:04.300 7979-18573/com.demo D/LLLLLLLLLL: /data/data/com.demo/app_bin/ffmpeg -i /storage/sdcard0/baishiMagic/magic/waterfall/waterfall/waterfall_%04d.png -r 25 -vcodec copy -preset ultrafast -y /storage/sdcard0/baishiMagic/temp/anim1.mov 
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   built on Oct  7 2014 15:05:17 with gcc 4.8 (GCC)
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavutil      54.  7.100 / 54.  7.100
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavcodec     56.  1.100 / 56.  1.100
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavformat    56.  4.101 / 56.  4.101
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavdevice    56.  0.100 / 56.  0.100
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavfilter     5.  1.100 /  5.  1.100
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libswscale      3.  0.100 /  3.  0.100
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libswresample   1.  1.100 /  1.  1.100
    
02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libpostproc    53.  0.100 / 53.  0.100
    
02-02 19:34:04.460 7979-18576/com.demo D/LLLLLLLLLL: Input #0, image2, from '/storage/sdcard0/baishiMagic/magic/waterfall/waterfall/waterfall_%04d.png':
    
02-02 19:34:04.460 7979-18576/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: N/A
    
02-02 19:34:04.460 7979-18576/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png, rgba, 480x640 [SAR 3779:3779 DAR 3:4], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL: Output #0, mov, to '/storage/sdcard0/baishiMagic/temp/anim1.mov':
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:   Metadata:
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], q=2-31, 25 fps, 12800 tbn, 25 tbc
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL: Stream mapping:
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:   Stream #0:0 -> #0:0 (copy)
    
02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL: Press [q] to stop, [?] for help
    
02-02 19:34:05.565 7979-18576/com.demo D/LLLLLLLLLL: frame=   46 fps=0.0 q=-1.0 size=   12339kB time=00:00:01.84 bitrate=54936.1kbits/s    
    
02-02 19:34:06.070 7979-18576/com.demo D/LLLLLLLLLL: frame=   59 fps= 56 q=-1.0 size=   22617kB time=00:00:02.36 bitrate=78509.1kbits/s    
    
02-02 19:34:06.580 7979-18576/com.demo D/LLLLLLLLLL: frame=   71 fps= 45 q=-1.0 size=   32451kB time=00:00:02.84 bitrate=93605.9kbits/s    
    
02-02 19:34:07.095 7979-18576/com.demo D/LLLLLLLLLL: frame=   88 fps= 42 q=-1.0 size=   42163kB time=00:00:03.52 bitrate=98124.1kbits/s    
    
02-02 19:34:07.610 7979-18576/com.demo D/LLLLLLLLLL: frame=  109 fps= 42 q=-1.0 size=   52919kB time=00:00:04.36 bitrate=99428.7kbits/s    
    
02-02 19:34:08.095 7979-18576/com.demo D/LLLLLLLLLL: frame=  128 fps= 41 q=-1.0 size=   64222kB time=00:00:05.12 bitrate=102755.2kbits/s    
    
02-02 19:34:08.270 7979-18576/com.demo D/LLLLLLLLLL: frame=  160 fps= 44 q=-1.0 size=   74397kB time=00:00:06.40 bitrate=95227.6kbits/s    
    
02-02 19:34:08.270 7979-18576/com.demo D/LLLLLLLLLL: frame=  200 fps= 53 q=-1.0 Lsize=   77598kB time=00:00:08.00 bitrate=79460.4kbits/s    
    
02-02 19:34:08.270 7979-18576/com.demo D/LLLLLLLLLL: video:77596kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002606%
    
02-02 19:34:08.270 7979-18573/com.demo D/LLLLLLLLLL: 图片合成,exitValue=0
    
02-02 19:34:08.295 7979-18573/com.demo D/LLLLLLLLLL: /data/data/com.demo/app_bin/ffmpeg -i /storage/sdcard0/baishiMagic/magic/waterfall/fish_isolate/fish_%04d.png -r 25 -vcodec copy -preset ultrafast -y /storage/sdcard0/baishiMagic/temp/anim2.mov 
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   built on Oct  7 2014 15:05:17 with gcc 4.8 (GCC)
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavutil      54.  7.100 / 54.  7.100
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavcodec     56.  1.100 / 56.  1.100
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavformat    56.  4.101 / 56.  4.101
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavdevice    56.  0.100 / 56.  0.100
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavfilter     5.  1.100 /  5.  1.100
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libswscale      3.  0.100 /  3.  0.100
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libswresample   1.  1.100 /  1.  1.100
    
02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libpostproc    53.  0.100 / 53.  0.100
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Input #0, image2, from '/storage/sdcard0/baishiMagic/magic/waterfall/fish_isolate/fish_%04d.png':
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: N/A
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png, rgba, 480x640 [SAR 3779:3779 DAR 3:4], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Output #0, mov, to '/storage/sdcard0/baishiMagic/temp/anim2.mov':
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:   Metadata:
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], q=2-31, 25 fps, 12800 tbn, 25 tbc
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Stream mapping:
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:   Stream #0:0 -> #0:0 (copy)
    
02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Press [q] to stop, [?] for help
    
02-02 19:34:08.750 7979-18674/com.demo D/LLLLLLLLLL: frame=  200 fps=0.0 q=-1.0 Lsize=    6606kB time=00:00:08.00 bitrate=6764.2kbits/s    
    
02-02 19:34:08.750 7979-18674/com.demo D/LLLLLLLLLL: video:6604kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.023112%
    
02-02 19:34:08.750 7979-18573/com.demo D/LLLLLLLLLL: 图片合成,exitValue=0
    
02-02 19:34:08.780 7979-18573/com.demo D/LLLLLLLLLL: /data/data/com.demo/app_bin/ffmpeg -y -i /storage/sdcard0/baishiMagic/temp/video1454412829452.mp4 -r 25 -i /storage/sdcard0/baishiMagic/temp/anim1.mov -i /storage/sdcard0/baishiMagic/temp/anim2.mov -i /storage/sdcard0/frame.ts -filter_complex transpose=1,crop=480:640:0:40,overlay=0:0:0,overlay=-2:-2:0,overlay=0:0:0 -preset ultrafast -strict -2 /storage/sdcard0/baishiMagic/result.mp4 
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   built on Oct  7 2014 15:05:17 with gcc 4.8 (GCC)
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavutil      54.  7.100 / 54.  7.100
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavcodec     56.  1.100 / 56.  1.100
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavformat    56.  4.101 / 56.  4.101
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavdevice    56.  0.100 / 56.  0.100
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavfilter     5.  1.100 /  5.  1.100
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libswscale      3.  0.100 /  3.  0.100
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libswresample   1.  1.100 /  1.  1.100
    
02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libpostproc    53.  0.100 / 53.  0.100
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/baishiMagic/temp/video1454412829452.mp4':
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : isom
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 0
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: isom3gp4
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     creation_time   : 2016-02-02 11:33:58
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:07.64, start: 0.000000, bitrate: 3099 kb/s
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x480, 3074 kb/s, SAR 1:1 DAR 4:3, 29.82 fps, 30 tbr, 90k tbn, 180k tbc (default)
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       rotate          : 180
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       creation_time   : 2016-02-02 11:33:58
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : VideoHandle
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       encoder         :                                
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Side data:
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       displaymatrix: rotation of 180.00 degrees
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 124 kb/s (default)
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       creation_time   : 2016-02-02 11:33:58
    
02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : SoundHandle
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/baishiMagic/temp/anim1.mov':
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : qt  
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 512
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: qt  
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: 79460 kb/s
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     Stream #1:0(eng): Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], 79458 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : DataHandler
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL: Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/baishiMagic/temp/anim2.mov':
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : qt  
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 512
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: qt  
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
    
02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: 6764 kb/s
    
02-02 19:34:08.955 7979-18716/com.demo D/LLLLLLLLLL:     Stream #2:0(eng): Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], 6762 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
    
02-02 19:34:08.955 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:08.955 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : DataHandler
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL: Input #3, mpegts, from '/storage/sdcard0/frame.ts':
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:05.13, start: 1.533333, bitrate: 1006 kb/s
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:   Program 1 
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:       service_name    : Service01
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:       service_provider: FFmpeg
    
02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:     Stream #3:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 480x480 [SAR 1:1 DAR 1:1], 15 fps, 15 tbr, 90k tbn, 30 tbc
    
02-02 19:34:09.000 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] using SAR=1/1
    
02-02 19:34:09.020 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] using cpu capabilities: none!
    
02-02 19:34:09.115 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] profile Constrained Baseline, level 3.0
    
02-02 19:34:09.115 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
    
02-02 19:34:09.170 7979-18716/com.demo D/LLLLLLLLLL: Output #0, mp4, to '/storage/sdcard0/baishiMagic/result.mp4':
    
02-02 19:34:09.170 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
    
02-02 19:34:09.170 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : isom
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 0
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: isom3gp4
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 480x640 [SAR 1:1 DAR 3:4], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:       encoder         : Lavc56.1.100 libx264
    
02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, mono, fltp, 128 kb/s (default)
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:       creation_time   : 2016-02-02 11:33:58
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : SoundHandle
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:       encoder         : Lavc56.1.100 aac
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL: Stream mapping:
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #0:0 (h264) -> transpose (graph 0)
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #1:0 (png) -> overlay:overlay (graph 0)
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #2:0 (png) -> overlay:overlay (graph 0)
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #3:0 (h264) -> overlay:overlay (graph 0)
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   overlay (graph 0) -> Stream #0:0 (libx264)
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL: Press [q] to stop, [?] for help
    
02-02 19:34:10.250 7979-18716/com.demo D/LLLLLLLLLL: frame=    1 fps=0.0 q=0.0 size=       0kB time=00:00:01.00 bitrate=   0.4kbits/s    
    
02-02 19:34:10.745 7979-18716/com.demo D/LLLLLLLLLL: frame=    6 fps=5.9 q=0.0 size=       0kB time=00:00:01.00 bitrate=   0.4kbits/s    
    
02-02 19:34:11.295 7979-18716/com.demo D/LLLLLLLLLL: frame=   11 fps=7.1 q=19.0 size=      11kB time=00:00:01.00 bitrate=  92.1kbits/s    
    
02-02 19:34:11.760 7979-18716/com.demo D/LLLLLLLLLL: frame=   16 fps=7.7 q=19.0 size=      24kB time=00:00:01.00 bitrate= 199.3kbits/s    
    
02-02 19:34:12.335 7979-18716/com.demo D/LLLLLLLLLL: frame=   22 fps=8.5 q=20.0 size=      39kB time=00:00:01.00 bitrate= 319.8kbits/s    
    
02-02 19:34:12.870 7979-18716/com.demo D/LLLLLLLLLL: frame=   28 fps=9.0 q=19.0 size=      58kB time=00:00:01.00 bitrate= 475.7kbits/s    
    
02-02 19:34:13.345 7979-18716/com.demo D/LLLLLLLLLL: frame=   30 fps=8.3 q=20.0 size=      63kB time=00:00:02.00 bitrate= 258.6kbits/s    
    
02-02 19:34:13.935 7979-18716/com.demo D/LLLLLLLLLL: frame=   34 fps=8.2 q=20.0 size=      74kB time=00:00:02.00 bitrate= 300.8kbits/s    
    
02-02 19:34:14.480 7979-18716/com.demo D/LLLLLLLLLL: frame=   39 fps=8.2 q=20.0 size=      87kB time=00:00:02.00 bitrate= 354.0kbits/s    
    
02-02 19:34:15.015 7979-18716/com.demo D/LLLLLLLLLL: frame=   43 fps=8.2 q=20.0 size=      98kB time=00:00:02.00 bitrate= 400.4kbits/s    
    
02-02 19:34:15.515 7979-18716/com.demo D/LLLLLLLLLL: frame=   48 fps=8.3 q=21.0 size=     112kB time=00:00:02.00 bitrate= 459.5kbits/s    
    
02-02 19:34:16.015 7979-18716/com.demo D/LLLLLLLLLL: frame=   54 fps=8.5 q=24.0 size=     137kB time=00:00:02.00 bitrate= 557.9kbits/s    
    
02-02 19:34:16.575 7979-18716/com.demo D/LLLLLLLLLL: frame=   58 fps=8.5 q=24.0 size=     169kB time=00:00:02.19 bitrate= 628.2kbits/s    
    
02-02 19:34:17.090 7979-18716/com.demo D/LLLLLLLLLL: frame=   60 fps=8.2 q=24.0 size=     189kB time=00:00:03.00 bitrate= 515.4kbits/s    
    
02-02 19:34:17.605 7979-18716/com.demo D/LLLLLLLLLL: frame=   65 fps=8.3 q=23.0 size=     228kB time=00:00:03.00 bitrate= 621.7kbits/s    
    
02-02 19:34:18.090 7979-18716/com.demo D/LLLLLLLLLL: frame=   70 fps=8.4 q=24.0 size=     269kB time=00:00:03.00 bitrate= 731.7kbits/s    
    
02-02 19:34:18.655 7979-18716/com.demo D/LLLLLLLLLL: frame=   76 fps=8.5 q=25.0 size=     320kB time=00:00:03.00 bitrate= 870.6kbits/s    
    
02-02 19:34:19.115 7979-18716/com.demo D/LLLLLLLLLL: frame=   82 fps=8.7 q=25.0 size=     374kB time=00:00:03.00 bitrate=1019.4kbits/s    
    
02-02 19:34:19.620 7979-18716/com.demo D/LLLLLLLLLL: frame=   87 fps=8.8 q=24.0 size=     419kB time=00:00:03.00 bitrate=1142.2kbits/s    
    
02-02 19:34:20.120 7979-18716/com.demo D/LLLLLLLLLL: frame=   89 fps=8.5 q=22.0 size=     434kB time=00:00:04.01 bitrate= 885.6kbits/s    
    
02-02 19:34:20.685 7979-18716/com.demo D/LLLLLLLLLL: frame=   94 fps=8.6 q=22.0 size=     464kB time=00:00:04.01 bitrate= 947.8kbits/s    
    
02-02 19:34:21.155 7979-18716/com.demo D/LLLLLLLLLL: frame=  100 fps=8.7 q=22.0 size=     495kB time=00:00:04.01 bitrate=1010.7kbits/s    
    
02-02 19:34:21.685 7979-18716/com.demo D/LLLLLLLLLL: frame=  105 fps=8.8 q=22.0 size=     523kB time=00:00:04.01 bitrate=1067.3kbits/s    
    
02-02 19:34:22.180 7979-18716/com.demo D/LLLLLLLLLL: frame=  110 fps=8.8 q=22.0 size=     551kB time=00:00:04.01 bitrate=1125.1kbits/s    
    
02-02 19:34:22.685 7979-18716/com.demo D/LLLLLLLLLL: frame=  115 fps=8.9 q=22.0 size=     576kB time=00:00:04.01 bitrate=1176.9kbits/s    
    
02-02 19:34:23.200 7979-18716/com.demo D/LLLLLLLLLL: frame=  118 fps=8.7 q=21.0 size=     592kB time=00:00:04.92 bitrate= 984.3kbits/s    
    
02-02 19:34:23.715 7979-18716/com.demo D/LLLLLLLLLL: frame=  123 fps=8.8 q=22.0 size=     619kB time=00:00:05.01 bitrate=1011.1kbits/s    
    
02-02 19:34:24.265 7979-18716/com.demo D/LLLLLLLLLL: frame=  127 fps=8.7 q=22.0 size=     638kB time=00:00:05.01 bitrate=1042.8kbits/s    
    
02-02 19:34:24.765 7979-18716/com.demo D/LLLLLLLLLL: frame=  131 fps=8.7 q=23.0 size=     658kB time=00:00:05.01 bitrate=1074.5kbits/s    
    
02-02 19:34:25.310 7979-18716/com.demo D/LLLLLLLLLL: frame=  137 fps=8.8 q=23.0 size=     700kB time=00:00:05.01 bitrate=1143.7kbits/s    
    
02-02 19:34:25.800 7979-18716/com.demo D/LLLLLLLLLL: frame=  142 fps=8.8 q=23.0 size=     736kB time=00:00:05.01 bitrate=1202.2kbits/s    
    
02-02 19:34:26.345 7979-18716/com.demo D/LLLLLLLLLL: frame=  147 fps=8.8 q=24.0 size=     771kB time=00:00:05.14 bitrate=1229.1kbits/s    
    
02-02 19:34:26.895 7979-18716/com.demo D/LLLLLLLLLL: frame=  150 fps=8.7 q=24.0 size=     798kB time=00:00:06.01 bitrate=1086.7kbits/s    
    
02-02 19:34:27.385 7979-18716/com.demo D/LLLLLLLLLL: frame=  156 fps=8.8 q=24.0 size=     847kB time=00:00:06.01 bitrate=1153.9kbits/s    
    
02-02 19:34:27.895 7979-18716/com.demo D/LLLLLLLLLL: frame=  161 fps=8.9 q=23.0 size=     886kB time=00:00:06.01 bitrate=1206.2kbits/s    
    
02-02 19:34:28.455 7979-18716/com.demo D/LLLLLLLLLL: frame=  167 fps=8.9 q=23.0 size=     927kB time=00:00:06.01 bitrate=1261.6kbits/s    
    
02-02 19:34:28.905 7979-18716/com.demo D/LLLLLLLLLL: frame=  173 fps=9.0 q=23.0 size=     964kB time=00:00:06.01 bitrate=1312.4kbits/s    
    
02-02 19:34:29.440 7979-18716/com.demo D/LLLLLLLLLL: frame=  177 fps=9.0 q=23.0 size=     987kB time=00:00:06.20 bitrate=1302.9kbits/s    
    
02-02 19:34:29.995 7979-18716/com.demo D/LLLLLLLLLL: frame=  180 fps=8.9 q=23.0 size=    1008kB time=00:00:07.01 bitrate=1176.9kbits/s    
    
02-02 19:34:30.490 7979-18716/com.demo D/LLLLLLLLLL: frame=  186 fps=9.0 q=21.0 size=    1048kB time=00:00:07.01 bitrate=1223.3kbits/s    
    
02-02 19:34:31.015 7979-18716/com.demo D/LLLLLLLLLL: frame=  191 fps=9.0 q=19.0 size=    1076kB time=00:00:07.01 bitrate=1255.5kbits/s    
    
02-02 19:34:31.495 7979-18716/com.demo D/LLLLLLLLLL: frame=  197 fps=9.0 q=18.0 size=    1103kB time=00:00:07.01 bitrate=1287.1kbits/s    
    
02-02 19:34:32.040 7979-18716/com.demo D/LLLLLLLLLL: frame=  202 fps=9.1 q=19.0 size=    1119kB time=00:00:07.01 bitrate=1306.5kbits/s    
    
02-02 19:34:32.555 7979-18716/com.demo D/LLLLLLLLLL: frame=  207 fps=9.1 q=20.0 size=    1138kB time=00:00:07.01 bitrate=1328.1kbits/s    
    
02-02 19:34:33.140 7979-18716/com.demo D/LLLLLLLLLL: frame=  213 fps=9.1 q=19.0 size=    1161kB time=00:00:07.01 bitrate=1354.7kbits/s    
    
02-02 19:34:33.695 7979-18716/com.demo D/LLLLLLLLLL: frame=  217 fps=9.1 q=19.0 size=    1176kB time=00:00:07.59 bitrate=1268.3kbits/s    
    
02-02 19:34:34.205 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=9.1 q=19.0 size=    1195kB time=00:00:07.59 bitrate=1288.8kbits/s dup=0 drop=4    
    
02-02 19:34:34.720 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=8.9 q=19.0 size=    1195kB time=00:00:07.59 bitrate=1288.8kbits/s dup=0 drop=13    
    
02-02 19:34:35.075 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=8.7 q=19.0 size=    1195kB time=00:00:07.59 bitrate=1288.8kbits/s dup=0 drop=24    
    
02-02 19:34:35.075 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=8.6 q=-1.0 Lsize=    1233kB time=00:00:07.63 bitrate=1322.5kbits/s dup=0 drop=30    
    
02-02 19:34:35.075 7979-18716/com.demo D/LLLLLLLLLL: video:1104kB audio:122kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.615799%
    
02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] frame I:1     Avg QP:20.00  size:  5784
    
02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] frame P:221   Avg QP:21.62  size:  5084
    
02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] mb I  I16..4: 100.0%  0.0%  0.0%
    
02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] mb P  I16..4: 17.6%  0.0%  0.0%  P16..4: 21.8%  0.0%  0.0%  0.0%  0.0%    skip:60.5%
    
02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] coded y,uvDC,uvAC intra: 36.9% 18.1% 2.2% inter: 13.0% 7.3% 0.1%
    
02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] i16 v,h,dc,p: 27% 30% 24% 19%
    
02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] i8c dc,h,v,p: 57% 22% 17%  3%
    
02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] kb/s:1221.00
    
02-02 19:34:35.110 7979-18573/com.demo D/LLLLLLLLLL: 视频处理,exitValue=0

  • Neutral net or neutered

    4 juin 2013, par Mans — Law and liberty

    In recent weeks, a number of high-profile events, in the UK and elsewhere, have been quickly seized upon to promote a variety of schemes for monitoring or filtering Internet access. These proposals, despite their good intentions of protecting children or fighting terrorism, pose a serious threat to fundamental liberties. Although at a glance the ideas may seem like a reasonable price to pay for the prevention of some truly hideous crimes, there is more than first meets the eye. Internet regulation in any form whatsoever is the thin end of a wedge at whose other end we find severely restricted freedom of expression of the kind usually associated with oppressive dictatorships. Where the Internet was once a novelty, it now forms an integrated part of modern society ; regulating the Internet means regulating our lives.

    Terrorism

    Following the brutal murder of British soldier Lee Rigby in Woolwich, attempts were made in the UK to revive the controversial Communications Data Bill, also dubbed the snooper’s charter. The bill would give police and security services unfettered access to details (excluding content) of all digital communication in the UK without needing so much as a warrant.

    The powers afforded by the snooper’s charter would, the argument goes, enable police to prevent crimes such as the one witnessed in Woolwich. True or not, the proposal would, if implemented, also bring about infrastructure for snooping on anyone at any time for any purpose. Once available, the temptation may become strong to extend, little by little, the legal use of these abilities to cover ever more everyday activities, all in the name of crime prevention, of course.

    In the emotional aftermath of a gruesome act, anything with the promise of preventing it happening again may seem like a good idea. At times like these it is important, more than ever, to remain rational and carefully consider all the potential consequences of legislation, not only the intended ones.

    Hate speech

    Hand in hand with terrorism goes hate speech, preachings designed to inspire violence against people of some singled-out nation, race, or other group. Naturally, hate speech is often to be found on the Internet, where it can reach large audiences while the author remains relatively protected. Naturally, we would prefer for it not to exist.

    To fulfil the utopian desire of a clean Internet, some advocate mandatory filtering by Internet service providers and search engines to remove this unwanted content. Exactly how such censoring might be implemented is however rarely dwelt upon, much less the consequences inadvertent blocking of innocent material might have.

    Pornography

    Another common target of calls for filtering is pornography. While few object to the blocking of child pornography, at least in principle, the debate runs hotter when it comes to the legal variety. Pornography, it is claimed, promotes violence towards women and is immoral or generally offensive. As such it ought to be blocked in the name of the greater good.

    The conviction last week of paedophile Mark Bridger for the abduction and murder of five-year-old April Jones renewed the debate about filtering of pornography in the UK ; his laptop was found to contain child pornography. John Carr of the UK government’s Council on Child Internet Safety went so far as suggesting a default blocking of all pornography, access being granted to an Internet user only once he or she had registered with some unspecified entity. Registering people wishing only to access perfectly legal material is not something we do in a democracy.

    The reality is that Google and other major search engines already remove illegal images from search results and report them to the appropriate authorities. In the UK, the Internet Watch Foundation, a non-government organisation, maintains a blacklist of what it deems ‘potentially criminal’ content, and many Internet service providers block access based on this list.

    While well-intentioned, the IWF and its blacklist should raise some concerns. Firstly, a vigilante organisation operating in secret and with no government oversight acting as the nation’s morality police has serious implications for freedom of speech. Secondly, the blocks imposed are sometimes more far-reaching than intended. In one incident, an attempt to block the cover image of the Scorpions album Virgin Killer hosted by Wikipedia (in itself a dubious decision) rendered the entire related article inaccessible as well as interfered with editing.

    Net neutrality

    Content filtering, or more precisely the lack thereof, is central to the concept of net neutrality. Usually discussed in the context of Internet service providers, this is the principle that the user should have equal, unfiltered access to all content. As a consequence, ISPs should not be held responsible for the content they deliver. Compare this to how the postal system works.

    The current debate shows that the principle of net neutrality is important not only at the ISP level, but should also include providers of essential services on the Internet. This means search engines should not be responsible for or be required to filter results, email hosts should not be required to scan users’ messages, and so on. No mandatory censoring can be effective without infringing the essential liberties of freedom of speech and press.

    Social networks operate in a less well-defined space. They are clearly not part of the essential Internet infrastructure, and they require that users sign up and agree to their terms and conditions. Because of this, they can include restrictions that would be unacceptable for the Internet as a whole. At the same time, social networks are growing in importance as means of communication between people, and as such they have a moral obligation to act fairly and apply their rules in a transparent manner.

    Facebook was recently under fire, accused of not taking sufficient measures to curb ‘hate speech,’ particularly against women. Eventually they pledged to review their policies and methods, and reducing the proliferation of such content will surely make the web a better place. Nevertheless, one must ask how Facebook (or another social network) might react to similar pressure from, say, a religious group demanding removal of ‘blasphemous’ content. What about demands from a foreign government ? Only yesterday, the Turkish prime minister Erdogan branded Twitter ‘a plague’ in a TV interview.

    Rather than impose upon Internet companies the burden of law enforcement, we should provide them the latitude to set their own policies as well as the legal confidence to stand firm in the face of unreasonable demands. The usual market forces will promote those acting responsibly.

    Further reading

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