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• No sounds on Apple devices after encoding videos [migrated]

  15 décembre 2013, par Ricardo

  I'm having a problem setting up a media server.
  Everything works just great except the sound of Apple devices, I'm not sure if that's something with "mute" on iOS or our codecs are just not compatible with iOS.

  OS :

  Ubuntu 12.04

  FFMPEG Config :

  ffmpeg version 0.10.8-7:0.10.8-1~lucid1 Copyright 2000-2013 the FFmpeg developers
  
    built on Sep  5 2013 19:50:14 with gcc 4.4.3
  
    configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.8-1~lucid1' --libdir=/usr/lib --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib --enable-shared --disable-static
  
    avcodec     configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.8-1~lucid1' --libdir=/usr/lib --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib --enable-shared --disable-static --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb
  
    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
  
  Hyper fast Audio and Video encoder

  Codecs :

   D..... = Decoding supported
  
   .E.... = Encoding supported
  
   ..V... = Video codec
  
   ..A... = Audio codec
  
   ..S... = Subtitle codec
  
   ...S.. = Supports draw_horiz_band
  
   ....D. = Supports direct rendering method 1
  
   .....T = Supports weird frame truncation
  
   ------
  
   D V D  4xm             4X Movie
  
   D V D  8bps            QuickTime 8BPS video
  
   D A D  8svx_exp        8SVX exponential
  
   D A D  8svx_fib        8SVX fibonacci
  
    EV    a64multi        Multicolor charset for Commodore 64
  
    EV    a64multi5       Multicolor charset for Commodore 64, extended with 5th color (colram)
  
   DEA D  aac             Advanced Audio Coding
  
   D A D  aac_latm        AAC LATM (Advanced Audio Codec LATM syntax)
  
   D V D  aasc            Autodesk RLE
  
   DEA D  ac3             ATSC A/52A (AC-3)
  
    EA    ac3_fixed       ATSC A/52A (AC-3)
  
   D A D  adpcm_4xm       ADPCM 4X Movie
  
   DEA D  adpcm_adx       SEGA CRI ADX ADPCM
  
   D A D  adpcm_ct        ADPCM Creative Technology
  
   D A D  adpcm_ea        ADPCM Electronic Arts
  
   D A D  adpcm_ea_maxis_xa ADPCM Electronic Arts Maxis CDROM XA
  
   D A D  adpcm_ea_r1     ADPCM Electronic Arts R1
  
   D A D  adpcm_ea_r2     ADPCM Electronic Arts R2
  
   D A D  adpcm_ea_r3     ADPCM Electronic Arts R3
  
   D A D  adpcm_ea_xas    ADPCM Electronic Arts XAS
  
   D A D  adpcm_ima_amv   ADPCM IMA AMV
  
   D A D  adpcm_ima_apc   ADPCM IMA CRYO APC
  
   D A D  adpcm_ima_dk3   ADPCM IMA Duck DK3
  
   D A D  adpcm_ima_dk4   ADPCM IMA Duck DK4
  
   D A D  adpcm_ima_ea_eacs ADPCM IMA Electronic Arts EACS
  
   D A D  adpcm_ima_ea_sead ADPCM IMA Electronic Arts SEAD
  
   D A D  adpcm_ima_iss   ADPCM IMA Funcom ISS
  
   DEA D  adpcm_ima_qt    ADPCM IMA QuickTime
  
   D A D  adpcm_ima_smjpeg ADPCM IMA Loki SDL MJPEG
  
   DEA D  adpcm_ima_wav   ADPCM IMA WAV
  
   D A D  adpcm_ima_ws    ADPCM IMA Westwood
  
   DEA D  adpcm_ms        ADPCM Microsoft
  
   D A D  adpcm_sbpro_2   ADPCM Sound Blaster Pro 2-bit
  
   D A D  adpcm_sbpro_3   ADPCM Sound Blaster Pro 2.6-bit
  
   D A D  adpcm_sbpro_4   ADPCM Sound Blaster Pro 4-bit
  
   DEA D  adpcm_swf       ADPCM Shockwave Flash
  
   D A D  adpcm_thp       ADPCM Nintendo Gamecube THP
  
   D A D  adpcm_xa        ADPCM CDROM XA
  
   DEA D  adpcm_yamaha    ADPCM Yamaha
  
   DEA D  alac            ALAC (Apple Lossless Audio Codec)
  
   D A D  als             MPEG-4 Audio Lossless Coding (ALS)
  
   D A D  amrnb           Adaptive Multi-Rate NarrowBand
  
   D A D  amrwb           Adaptive Multi-Rate WideBand
  
   DEV    amv             AMV Video
  
   D V D  anm             Deluxe Paint Animation
  
   D V D  ansi            ASCII/ANSI art
  
   D A D  ape             Monkey's Audio
  
   DES    ass             Advanced SubStation Alpha subtitle
  
   DEV D  asv1            ASUS V1
  
   DEV D  asv2            ASUS V2
  
   D A D  atrac1          Atrac 1 (Adaptive TRansform Acoustic Coding)
  
   D A D  atrac3          Atrac 3 (Adaptive TRansform Acoustic Coding 3)
  
   D V D  aura            Auravision AURA
  
   D V D  aura2           Auravision Aura 2
  
   DEV D  avrp            Avid 1:1 10-bit RGB Packer
  
   D V D  avs             AVS (Audio Video Standard) video
  
   D V D  bethsoftvid     Bethesda VID video
  
   D V D  bfi             Brute Force & Ignorance
  
   D A D  binkaudio_dct   Bink Audio (DCT)
  
   D A D  binkaudio_rdft  Bink Audio (RDFT)
  
   D V    binkvideo       Bink video
  
   D V D  bintext         Binary text
  
   DEV D  bmp             BMP image
  
   D A D  bmv_audio       Discworld II BMV audio
  
   D V    bmv_video       Discworld II BMV video
  
   D V D  c93             Interplay C93
  
   D V D  camstudio       CamStudio
  
   D V D  camtasia        TechSmith Screen Capture Codec
  
   D V D  cavs            Chinese AVS video (AVS1-P2, JiZhun profile)
  
   D V D  cdgraphics      CD Graphics video
  
   D V D  cinepak         Cinepak
  
   DEV D  cljr            Cirrus Logic AccuPak
  
   D A D  cook            COOK
  
   D V D  cyuv            Creative YUV (CYUV)
  
   DEA D  dca             DCA (DTS Coherent Acoustics)
  
   D V D  dfa             Chronomaster DFA
  
   D V    dirac           BBC Dirac VC-2
  
   DEV D  dnxhd           VC3/DNxHD
  
   DEV    dpx             DPX image
  
   D A D  dsicinaudio     Delphine Software International CIN audio
  
   D V D  dsicinvideo     Delphine Software International CIN video
  
   DES    dvbsub          DVB subtitles
  
   DES    dvdsub          DVD subtitles
  
   DEV D  dvvideo         DV (Digital Video)
  
   D V D  dxa             Feeble Files/ScummVM DXA
  
   D V D  dxtory          Dxtory
  
   DEA D  eac3            ATSC A/52 E-AC-3
  
   D V D  eacmv           Electronic Arts CMV video
  
   D V D  eamad           Electronic Arts Madcow Video
  
   D V D  eatgq           Electronic Arts TGQ video
  
   D V    eatgv           Electronic Arts TGV video
  
   D V D  eatqi           Electronic Arts TQI Video
  
   D V D  escape124       Escape 124
  
   D V D  escape130       Escape 130
  
   DEV D  ffv1            FFmpeg video codec #1
  
   DEVSD  ffvhuff         Huffyuv FFmpeg variant
  
   DEA D  flac            FLAC (Free Lossless Audio Codec)
  
   DEV D  flashsv         Flash Screen Video
  
   DEV D  flashsv2        Flash Screen Video Version 2
  
   D V D  flic            Autodesk Animator Flic video
  
   DEVSD  flv             Flash Video (FLV) / Sorenson Spark / Sorenson H.263
  
   D V D  fraps           Fraps
  
   D V D  frwu            Forward Uncompressed
  
   DEA D  g722            G.722 ADPCM
  
   DEA    g723_1          G.723.1
  
   DEA D  g726            G.726 ADPCM
  
   D A D  g729            G.729
  
   DEV D  gif             GIF (Graphics Interchange Format)
  
   D A D  gsm             GSM
  
   D A D  gsm_ms          GSM Microsoft variant
  
   DEV D  h261            H.261
  
   DEVSDT h263            H.263 / H.263-1996
  
   D VSD  h263i           Intel H.263
  
    EV    h263p           H.263+ / H.263-1998 / H.263 version 2
  
   D V D  h264            H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
  
   D V D  h264_vdpau      H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)
  
   DEVSD  huffyuv         Huffyuv / HuffYUV
  
   D V D  idcinvideo      id Quake II CIN video
  
   D V D  idf             iCEDraw text
  
   D V D  iff_byterun1    IFF ByteRun1
  
   D V D  iff_ilbm        IFF ILBM
  
   D A D  imc             IMC (Intel Music Coder)
  
   D V D  indeo2          Intel Indeo 2
  
   D V    indeo3          Intel Indeo 3
  
   D V    indeo4          Intel Indeo Video Interactive 4
  
   D V    indeo5          Intel Indeo Video Interactive 5
  
   D A D  interplay_dpcm  DPCM Interplay
  
   D V D  interplayvideo  Interplay MVE video
  
   DEV    j2k             JPEG 2000
  
   DEV D  jpegls          JPEG-LS
  
   D V D  jv              Bitmap Brothers JV video
  
   D V    kgv1            Kega Game Video
  
   D V D  kmvc            Karl Morton's video codec
  
   D V D  lagarith        Lagarith lossless
  
   DEA D  libgsm          libgsm GSM
  
   DEA D  libgsm_ms       libgsm GSM Microsoft variant
  
    EA    libmp3lame      libmp3lame MP3 (MPEG audio layer 3)
  
   DEA D  libopencore_amrnb OpenCORE Adaptive Multi-Rate (AMR) Narrow-Band
  
   D A D  libopencore_amrwb OpenCORE Adaptive Multi-Rate (AMR) Wide-Band
  
   DEV D  libopenjpeg     OpenJPEG based JPEG 2000 encoder
  
   DEV    libschroedinger libschroedinger Dirac 2.2
  
   DEA D  libspeex        libspeex Speex
  
    EV    libtheora       libtheora Theora
  
    EA    libvorbis       libvorbis Vorbis
  
   DEV    libvpx          libvpx VP8
  
    EV    libx264         libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
  
    EV    libx264rgb      libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB
  
    EV    ljpeg           Lossless JPEG
  
   D V D  loco            LOCO
  
   D A D  mace3           MACE (Macintosh Audio Compression/Expansion) 3:1
  
   D A D  mace6           MACE (Macintosh Audio Compression/Expansion) 6:1
  
   D V D  mdec            Sony PlayStation MDEC (Motion DECoder)
  
   D V D  mimic           Mimic
  
   DEV D  mjpeg           MJPEG (Motion JPEG)
  
   D V D  mjpegb          Apple MJPEG-B
  
   D A D  mlp             MLP (Meridian Lossless Packing)
  
   D V D  mmvideo         American Laser Games MM Video
  
   D V D  motionpixels    Motion Pixels video
  
   D A D  mp1             MP1 (MPEG audio layer 1)
  
   D A D  mp1float        MP1 (MPEG audio layer 1)
  
   DEA D  mp2             MP2 (MPEG audio layer 2)
  
   D A D  mp2float        MP2 (MPEG audio layer 2)
  
   D A D  mp3             MP3 (MPEG audio layer 3)
  
   D A D  mp3adu          ADU (Application Data Unit) MP3 (MPEG audio layer 3)
  
   D A D  mp3adufloat     ADU (Application Data Unit) MP3 (MPEG audio layer 3)
  
   D A D  mp3float        MP3 (MPEG audio layer 3)
  
   D A D  mp3on4          MP3onMP4
  
   D A D  mp3on4float     MP3onMP4
  
   D A D  mpc7            Musepack SV7
  
   D A D  mpc8            Musepack SV8
  
   DEVSDT mpeg1video      MPEG-1 video
  
   D V DT mpeg1video_vdpau MPEG-1 video (VDPAU acceleration)
  
   DEVSDT mpeg2video      MPEG-2 video
  
   DEVSDT mpeg4           MPEG-4 part 2
  
   D V DT mpeg4_vdpau     MPEG-4 part 2 (VDPAU)
  
   D VSDT mpegvideo       MPEG-1 video
  
   D V DT mpegvideo_vdpau MPEG-1/2 video (VDPAU acceleration)
  
   D VSDT mpegvideo_xvmc  MPEG-1/2 video XvMC (X-Video Motion Compensation)
  
   DEVSD  msmpeg4         MPEG-4 part 2 Microsoft variant version 3
  
   D VSD  msmpeg4v1       MPEG-4 part 2 Microsoft variant version 1
  
   DEVSD  msmpeg4v2       MPEG-4 part 2 Microsoft variant version 2
  
   D V D  msrle           Microsoft RLE
  
   DEV D  msvideo1        Microsoft Video-1
  
   D V D  mszh            LCL (LossLess Codec Library) MSZH
  
   D V D  mxpeg           Mobotix MxPEG video
  
   DEA D  nellymoser      Nellymoser Asao
  
   D V D  nuv             NuppelVideo/RTJPEG
  
   DEV D  pam             PAM (Portable AnyMap) image
  
   DEV D  pbm             PBM (Portable BitMap) image
  
   DEA D  pcm_alaw        PCM A-law
  
   D A D  pcm_bluray      PCM signed 16|20|24-bit big-endian for Blu-ray media
  
   D A D  pcm_dvd         PCM signed 20|24-bit big-endian
  
   DEA D  pcm_f32be       PCM 32-bit floating point big-endian
  
   DEA D  pcm_f32le       PCM 32-bit floating point little-endian
  
   DEA D  pcm_f64be       PCM 64-bit floating point big-endian
  
   DEA D  pcm_f64le       PCM 64-bit floating point little-endian
  
   D A D  pcm_lxf         PCM signed 20-bit little-endian planar
  
   DEA D  pcm_mulaw       PCM mu-law
  
   DEA D  pcm_s16be       PCM signed 16-bit big-endian
  
   DEA D  pcm_s16le       PCM signed 16-bit little-endian
  
   D A D  pcm_s16le_planar PCM 16-bit little-endian planar
  
   DEA D  pcm_s24be       PCM signed 24-bit big-endian
  
   DEA D  pcm_s24daud     PCM D-Cinema audio signed 24-bit
  
   DEA D  pcm_s24le       PCM signed 24-bit little-endian
  
   DEA D  pcm_s32be       PCM signed 32-bit big-endian
  
   DEA D  pcm_s32le       PCM signed 32-bit little-endian
  
   DEA D  pcm_s8          PCM signed 8-bit
  
   D A D  pcm_s8_planar   PCM signed 8-bit planar
  
   DEA D  pcm_u16be       PCM unsigned 16-bit big-endian
  
   DEA D  pcm_u16le       PCM unsigned 16-bit little-endian
  
   DEA D  pcm_u24be       PCM unsigned 24-bit big-endian
  
   DEA D  pcm_u24le       PCM unsigned 24-bit little-endian
  
   DEA D  pcm_u32be       PCM unsigned 32-bit big-endian
  
   DEA D  pcm_u32le       PCM unsigned 32-bit little-endian
  
   DEA D  pcm_u8          PCM unsigned 8-bit
  
   D A D  pcm_zork        PCM Zork
  
   DEV D  pcx             PC Paintbrush PCX image
  
   DEV D  pgm             PGM (Portable GrayMap) image
  
   DEV D  pgmyuv          PGMYUV (Portable GrayMap YUV) image
  
   D S    pgssub          HDMV Presentation Graphic Stream subtitles
  
   D V D  pictor          Pictor/PC Paint
  
   DEV D  png             PNG image
  
   DEV D  ppm             PPM (Portable PixelMap) image
  
   DEV D  prores          Apple ProRes
  
   D V D  prores_lgpl     Apple ProRes (iCodec Pro)
  
   D V D  ptx             V.Flash PTX image
  
   D A D  qcelp           QCELP / PureVoice
  
   D A D  qdm2            QDesign Music Codec 2
  
   D V D  qdraw           Apple QuickDraw
  
   D V D  qpeg            Q-team QPEG
  
   DEV D  qtrle           QuickTime Animation (RLE) video
  
   DEV D  r10k            AJA Kona 10-bit RGB Codec
  
   DEV D  r210            Uncompressed RGB 10-bit
  
   DEV    rawvideo        raw video
  
   DEA D  real_144        RealAudio 1.0 (14.4K) encoder
  
   D A D  real_288        RealAudio 2.0 (28.8K)
  
   D V D  rl2             RL2 video
  
   DEA D  roq_dpcm        id RoQ DPCM
  
   DEV D  roqvideo        id RoQ video
  
   D V D  rpza            QuickTime video (RPZA)
  
   DEV D  rv10            RealVideo 1.0
  
   DEV D  rv20            RealVideo 2.0
  
   D V D  rv30            RealVideo 3.0
  
   D V D  rv40            RealVideo 4.0
  
   D A D  s302m           SMPTE 302M
  
   DEV    sgi             SGI image
  
   D A D  shorten         Shorten
  
   D A D  sipr            RealAudio SIPR / ACELP.NET
  
   D A D  smackaud        Smacker audio
  
   D V D  smackvid        Smacker video
  
   D V D  smc             QuickTime Graphics (SMC)
  
   DEV D  snow            Snow
  
   D A D  sol_dpcm        DPCM Sol
  
   DEA D  sonic           Sonic
  
    EA    sonicls         Sonic lossless
  
   D V D  sp5x            Sunplus JPEG (SP5X)
  
   DES    srt             SubRip subtitle
  
   D V D  sunrast         Sun Rasterfile image
  
   DEV D  svq1            Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
  
   D VSD  svq3            Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
  
   DEV D  targa           Truevision Targa image
  
   D VSD  theora          Theora
  
   D V D  thp             Nintendo Gamecube THP video
  
   D V D  tiertexseqvideo Tiertex Limited SEQ video
  
   DEV D  tiff            TIFF image
  
   D V D  tmv             8088flex TMV
  
   D A D  truehd          TrueHD
  
   D V D  truemotion1     Duck TrueMotion 1.0
  
   D V D  truemotion2     Duck TrueMotion 2.0
  
   D A D  truespeech      DSP Group TrueSpeech
  
   D A D  tta             True Audio (TTA)
  
   D A D  twinvq          VQF TwinVQ
  
   D V D  txd             Renderware TXD (TeXture Dictionary) image
  
   D V D  ultimotion      IBM UltiMotion
  
   D V D  utvideo         Ut Video
  
   DEV D  v210            Uncompressed 4:2:2 10-bit
  
   D V D  v210x           Uncompressed 4:2:2 10-bit
  
   DEV D  v308            Uncompressed packed 4:4:4
  
   DEV D  v410            Uncompressed 4:4:4 10-bit
  
   D V    vb              Beam Software VB
  
   D V D  vble            VBLE Lossless Codec
  
   D V D  vc1             SMPTE VC-1
  
   D V D  vc1_vdpau       SMPTE VC-1 VDPAU
  
   D V D  vc1image        Windows Media Video 9 Image v2
  
   D V D  vcr1            ATI VCR1
  
   D A D  vmdaudio        Sierra VMD audio
  
   D V D  vmdvideo        Sierra VMD video
  
   D V D  vmnc            VMware Screen Codec / VMware Video
  
   DEA D  vorbis          Vorbis
  
   D VSD  vp3             On2 VP3
  
   D V D  vp5             On2 VP5
  
   D V D  vp6             On2 VP6
  
   D V D  vp6a            On2 VP6 (Flash version, with alpha channel)
  
   D V D  vp6f            On2 VP6 (Flash version)
  
   D V D  vp8             On2 VP8
  
   D V D  vqavideo        Westwood Studios VQA (Vector Quantized Animation) video
  
   D A D  wavesynth       Wave synthesis pseudo-codec
  
   D A D  wavpack         WavPack
  
   D A    wmalossless     Windows Media Audio 9 Lossless
  
   D A D  wmapro          Windows Media Audio 9 Professional
  
   DEA D  wmav1           Windows Media Audio 1
  
   DEA D  wmav2           Windows Media Audio 2
  
   D A D  wmavoice        Windows Media Audio Voice
  
   DEVSD  wmv1            Windows Media Video 7
  
   DEVSD  wmv2            Windows Media Video 8
  
   D V D  wmv3            Windows Media Video 9
  
   D V D  wmv3_vdpau      Windows Media Video 9 VDPAU
  
   D V D  wmv3image       Windows Media Video 9 Image
  
   D V D  wnv1            Winnov WNV1
  
   D A D  ws_snd1         Westwood Audio (SND1)
  
   D A D  xan_dpcm        DPCM Xan
  
   D V D  xan_wc3         Wing Commander III / Xan
  
   D V D  xan_wc4         Wing Commander IV / Xxan
  
   D V D  xbin            eXtended BINary text
  
   D V D  xl              Miro VideoXL
  
   DES    xsub            DivX subtitles (XSUB)
  
   DEV D  xwd             XWD (X Window Dump) image
  
   DEV D  y41p            Uncompressed YUV 4:1:1 12-bit
  
   D V    yop             Psygnosis YOP Video
  
   DEV D  yuv4            Uncompressed packed 4:2:0
  
   DEV D  zlib            LCL (LossLess Codec Library) ZLIB
  
   DEV D  zmbv            Zip Motion Blocks Video

  Library we use to convert :

  public function getAvailableAudioCodecs()
  
      {
  
          return array('libvo_aacenc', 'libfaac', 'libmp3lame');
  
      }

  By default I use 'libmp3lame' now because 'libfaac' is not supported by ffmpeg
  and when Im trying to encode sound by libfaac I'm getting that codec not found

  Thanks in advance !

• avcodec : add a native SMPTE VC-2 HQ encoder

  10 février 2016, par Rostislav Pehlivanov

  avcodec : add a native SMPTE VC-2 HQ encoder
  This commit adds a new encoder capable of creating BBC/SMPTE Dirac/VC-2 HQ
  
  profile files.
  Dirac is a wavelet based codec created by the BBC a little more than 10
  
  years ago. Since then, wavelets have mostly gone out of style as they
  
  did not provide adequate encoding gains at lower bitrates. Dirac was a
  
  fully featured video codec equipped with perceptual masking, support for
  
  most popular pixel formats, interlacing, overlapped-block motion
  
  compensation, and other features. It found new life after being stripped
  
  of various features and standardized as the VC-2 codec by the SMPTE with
  
  an extra profile, the HQ profile that this encoder supports, added.
  The HQ profile was based off of the Low-Delay profile previously
  
  existing in Dirac. The profile forbids DC prediction and arithmetic
  
  coding to focus on high performance and low delay at higher bitrates.
  
  The standard bitrates for this profile vary but generally 1:4
  
  compression is expected ( 525 Mbps vs the 2200 Mbps for uncompressed
  
  1080p50). The codec only supports I-frames, hence the high bitrates.
  The structure of this encoder is simple : do a DWT transform on the
  
  entire image, split it into multiple slices (specified by the user) and
  
  encode them in parallel. All of the slices are of the same size, making
  
  rate control and threading very trivial. Although only in C, this encoder
  
  is capable of 30 frames per second on an 4 core 8 threads Ivy Bridge.
  
  A lookup table is used to encode most of the coefficients.
  No code was used from the GSoC encoder from 2007 except for the 2
  
  transform functions in diracenc_transforms.c. All other code was written
  
  from scratch.
  This encoder outperforms any other encoders in quality, usability and in
  
  features. Other existing implementations do not support 4 level
  
  transforms or 64x64 blocks (slices), which greatly increase compression.
  As previously said, the codec is meant for broadcasting, hence support
  
  for non-broadcasting image widths, heights, bit depths, aspect ratios,
  
  etc. are limited by the "level". Although this codec supports a few
  
  chroma subsamplings (420, 422, 444), signalling those is generally
  
  outside the specifications of the level used (3) and the reference
  
  decoder will outright refuse to read any image with such a flag
  
  signalled (it only supports 1920x1080 yuv422p10). However, most
  
  implementations will happily read files with alternate dimensions,
  
  framerates and formats signalled.
  Therefore, in order to encode files other than 1080p50 yuv422p10le, you
  
  need to provide an "-strict -2" argument to the command line. The FFmpeg
  
  decoder will happily read any files made with non-standard parameters,
  
  dimensions and subsamplings, and so will other implementations. IMO this
  
  should be "-strict -1", but I’ll leave that up for discussion.
  There are still plenty of stuff to implement, for instance 5 more
  
  wavelet transforms are still in the specs and supported by the decoder.
  The encoder can be lossless, given a high enough bitrate.
  Signed-off-by : Rostislav Pehlivanov <atomnuker@gmail.com>
  

  • [DH] libavcodec/Makefile
  • [DH] libavcodec/allcodecs.c
  • [DH] libavcodec/vc2enc.c
  • [DH] libavcodec/vc2enc_dwt.c
  • [DH] libavcodec/vc2enc_dwt.h
  • [DH] libavcodec/version.h

• The Ultimate List of Alternatives to Google Products

  2 août 2022, par Erin — Privacy

  For many businesses, Google products can play an integral part in the productivity, function and even success of the company. This is because Google has designed their digital ecosystem to infiltrate every aspect of your work and personal life at low-to-no cost.

  On the surface, this seems like a no-brainer. Why not have a cost-effective and seamlessly connected tech stack ? It’s the complete package. 

  From Gmail to Google Analytics, it becomes hard to untangle yourself from this intricate web Google has managed to spin. But like a web, you know there’s also a catch.

  This leads us to the big question… Why stop ?

  In this blog, we’ll cover :

  Why de-Google ?

  Google products are convenient and seemingly free. However, in recent years, Google’s name has become synonymous with privacy breaches, data leaks and illegal under the General Data Protection Regulation (GDPR).

  As their track record shows a glaring disregard for data protection, a growing list of EU member countries like Austria, France, Denmark and Italy have banned Google products, such as Google Analytics, Google Workspace and Google Chromebook.

  Google offers free products and services, but not out of altruism. There’s a trade-off. By using Google’s “free” products, your customers’ and your own online activity becomes a commodity that can be sold to advertisers.

  When the risks of using Google products are considered, it becomes clear the need to plot a pathway to de-Google your business. If you’re wondering how in the world to uncoil from this web, fortunately, there are plenty of privacy-friendly, secure alternatives to Google products that you can choose.

  Disclaimer : Below, we’ve tried our best to provide a comprehensive list of alternatives to Google products for businesses, but because you know your business best, we’d also encourage you to do your own research to ensure the tool will suit your unique needs.

  Best Google alternative tools for business

  Overall business tools

  Google Workspace alternatives

  Google Workspace isn’t GDPR compliant by default, so businesses are at risk of fines and reputational damage. More EU countries are reaching the same conclusion that Google products are violating EU law. Data Protection Authorities from Norway and Denmark have deemed Google Workspace illegal in accordance with the GDPR. 

  Nextcloud

  Nextcloud is an open-source and self-hosted productivity platform that offers a suite of services to replace the major features found in Google Workspace, such as Google Drive, Calendar, Docs, Forms and Tasks. 

  You can share files and collaborate without worrying about data being shared with unauthorised individuals or companies. As a self-hosted suite, you’re in full control of where your data is, who has access to it and can comply with the strictest of data protection legislations.

  

  Zoho

  Zoho is a Google Workspace alternative built on the same principles as Google’s productivity suite. It offers a suite of online office tools, including email, calendar and task management, but with an emphasis on privacy protection. Zoho doesn’t rely on advertising revenue to support their business which means your personal data will never be sold or used for targeted ads. 

  With over 75 million users globally, Zoho offers data encryption at rest and at transit, multi-factor authentication and complies with strict security standards set by HIPAA, the Cloud Security Alliance and the GDPR.

  

  Gmail alternatives

  Google only encrypts emails via STARTTLS. In other words, your data isn’t end-to-end encrypted and can be decrypted by them at any time. Gmail also has a history of allowing third-party app developers that work with Gmail to access private and personal Gmail messages for their own market research purposes.

  ProtonMail

  ProtonMail is a secure, open-source email service that provides end-to-end encryption, so only the sender and receiver can access the messages. Proton deliberately doesn’t possess the key needed to decrypt any part of the message, so you know your sensitive business information is always private. 

  To protect users from digital surveillance, they also provide enhanced tracking protections and don’t rely on ads, so your data isn’t mined for advertising purposes. Not only that, you can also sync ProtonMail with a host of other Google alternative products, such as Proton Calendar and Proton Drive.

  

  Mailfence

  Mailfence is a highly secure communications and planning platform that offers a complete email suite, as well as, Documents, a Calendar and Groups. It provides end-to-end encryption and comes with a built-in data loss prevention system that prevents unauthorised access to your sensitive information. 

  Mailfence is completely ad-free and promises to never commercialise its databases or share data with third parties for targeted ads.

  

  Tutanota

  Tutanota is an open-source email service known as one of the first to offer end-to-end encryption. It boasts a user-friendly interface and offers a fast, simple and secure email service that works on web and mobile platforms. Stringent security, in addition to TOTP and U2F for two-factor authentication means you control who has access to your email and messages. 

  It requires no phone number or personal information to register for a free account. In addition, Tutanota doesn’t earn money through ads, its servers are based in Europe and it is fully GDPR compliant.

  

  Google Calendar alternatives

  Calendars can contain a lot of personal information (who you are meeting, location, contact info, etc.), which is well worth keeping private. 

  Proton Calendar

  With Proton Calendar all event details – participants, locations, event names, descriptions and notes are end-to-end encrypted. It has a clean and easy-to-use interface, and you get a full set of advanced features to replace Google Calendar, such as the ability to create events and reminders, add multiple calendars and set up repeating events. You can easily sync all your calendars between mobile and desktop apps.

  

  Mailfence Calendar

  Mailfence Calendar lets you manage, schedule and track your events and meetings. Similar to Google Calendar, you can invite people to events using their Mailfence email IDs, but it doesn’t track your location or email address.

  

  Tutanota Calendar

  Tutanota Calendar offers built-in encryption, so no one else can decrypt and read your information.

  You can keep track of your appointments and meetings in a secure environment that only you have access to. You get features, such as day/week/month view, all-day events, recurring events, upcoming events view and shared calendars. You can also sync it with other apps such as Outlook.

  

  Nextcloud Calendar app

  Nextcloud also offers a Calendar app which easily syncs events from different devices with your Nextcloud account. You can integrate it with other Nextcloud apps like Contacts, Talk and Tasks.

  

  Google Drive alternatives

  The GDPR emphasises end-to-end encryption as a safeguard against data leaks, but Google Drive isn’t end-to-end encrypted, so Google has access to the data on its servers. 

  In their privacy policy, they also state that this data can be analysed for advertising purposes, so although you’re using “free” Cloud storage, users need to be aware that they’re paying for this by giving Google access to any and all data stored in Google Drive.

  Proton Drive

  Proton Drive is a secure and private Cloud storage service that provides you with an easy-to-use, customisable and secure file management system.

  It uses end-to-end encryption to secure your data and keep it safe from prying eyes. As you have full control over your data, you can decide how long it’s stored and who has access to it. You can also choose how much of your information is shared with other users.

  

  Nextcloud

  Nextcloud works on your own server, so you can access and share your data wherever you are. It’s a file hosting service that lets you store files, sync them across your devices and collaborate with others on projects. 

  It also provides encryption for all the files that you store on its servers, so you can rest assured that no one can see your information without your permission.

  

  Syncthing

  Syncthing is a free, open-source file synchronisation program that allows you to store and access your files wherever you are. It’s designed to be fast, secure and easy to use, making it a great alternative to Google Drive. 

  With Syncthing, you can sync files across multiple computers and mobile devices at once. So if you create, delete or modify files on one machine, they will automatically be replicated on other devices. Data is saved directly to a location you choose, so you can securely backup your data without needing a third-party cloud service.

  Google Docs alternatives

  Google states they can “collect information” from Google-hosted content such as Docs by means of automated scanning. 

  Not only does this stoke spying fears, it also raises concerns over who holds power over your content. If they look through your docs and decide that you’ve violated their terms of service, you can get locked out of your Google Docs – as was the case when a National Geographic crime reporter had her story “frozen” by Google.

  LibreOffice

  LibreOffice is a free, open-source office suite with all the features you need to create and edit documents, presentations and spreadsheets. It’s compatible with many different languages and all Microsoft Office file formats. 

  Unlike Google Docs, LibreOffice doesn’t store your documents on the Cloud. As it runs on your own computer, you maintain complete control and the data is kept as private and as secure as you wish. LibreOffice also has an online version that works with most web browsers and can be used on Windows, Mac and Linux operating systems. 

  The open-source nature ensures security as the code is constantly improved and scouted for vulnerabilities.

  

  Nextcloud Office

  Like Google Docs, Nextcloud Office lets you create new documents and spreadsheets and collaborate with teammates or colleagues. But unlike Google Docs, Nextcloud doesn’t collect any data on who is using its platform, or what they’re doing on it. You can even encrypt the files you store in Nextcloud, so no one else can see them unless you give them access to your account.

  

  Google Keep alternative

  Standard Notes

  Standard Notes is an open-source online notebook app that offers a variety of useful features, such as tasks, to-dos and spreadsheets. 

  Unlike Google Keep, which has access to your notes, Standard Notes is end-to-end encrypted, which protects all your information and keeps it securely synced across all your devices. Standard Notes supports text, images and audio notes. As open-source software, they value transparency and trust and don’t rely on tracking or intrusive ads.

  

  Google Chrome alternatives

  Google Chrome is notorious for stalking users and collecting information for their own gains. Their browser fuels their data gathering infrastructure by being able to collect info about your search history, location, personal data and product interaction data for “personalisation” purposes – essentially to build a profile of you to sell to advertisers.

  Firefox

  Firefox is one of the most secure browsers for privacy and is trusted by 220 million users. It easily compares with Chrome in terms of ease of use and performance. 

  On top of that it offers enhanced privacy protections, so you get a browser that doesn’t stalk you and isn’t riddled with ads.