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• avcodec/omx : Fix handling of fragmented buffers

  17 janvier 2019, par Dave Stevenson

  avcodec/omx : Fix handling of fragmented buffers
  See https://trac.ffmpeg.org/ticket/7687
  If an encoded frame is returned split over two or more
  
  IL buffers due to the size, then there is a race between
  
  whether get_buffer will fail, return NULL, and a truncated
  
  frame is passed on, or IL will return the remaining part
  
  of the encoded frame.
  
  If get_buffer returns NULL, part of the frame is left behind
  
  in the codec, and will be collected on the next call. That
  
  then leaves a frame stuck in the codec. Repeat enough times
  
  and the codec FIFO is full, and the pipeline stalls.
  A performance improvement in the Raspberry Pi firmware means
  
  that the timing has changed, and now frequently drops into the
  
  case where get_buffer returns NULL.
  Add code such that should a buffer be received without
  
  OMX_BUFFERFLAG_ENDOFFRAME that get_buffer is called with wait
  
  set, so we wait for the remainder of the frame.
  
  This code has been made conditional on the Pi build in case
  
  other IL implementations don't handle ENDOFFRAME correctly.
  Signed-off-by : Dave Stevenson <dave.stevenson@raspberrypi.org>
  
  Signed-off-by : Aman Gupta <aman@tmm1.net>
  
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] libavcodec/omx.c

• Can ffmpeg copy parts from an rmvb file without re-encoding ?

  24 juin 2017, par Eng. M.Hamdy

  I want to fast copy parts from an rmvb file without re-encoding. This command works fine with mp4 files but not with rmbv (I dropped start time and duration here) :

  ffmpeg -i input -c copy output

  when I use it with rmvb like this :

  ffmpeg -i 1.rmvb -c copy 1.mp4

  I get this error :

  [mp4 @ 00bb8980] Could not find tag for codec rv40 in stream #0, codec
  not curre ntly supported in container Could not write header for
  output file #0 (incorrect codec parameters ?) : Invali d argument
  Stream mapping : Stream #0:1 -> #0:0 (copy) Stream #0:0 -> #0:1
  (copy)

  I also tried this :

  ffmpeg -i 1.rmvb -c copy 2.rmvb

  and got this error :

  [NULL @ 04748980] Unable to find a suitable output format for ’2.rmvb’
  2.rmvb : Invalid argument

  I tried this command :

  ffmpeg -i 1.rmvb -c:v copy -c:a aac -strict experimental -b:a 128k 1.mp4

  and got this error :

  [mp4 @ 046e0020] Could not find tag for codec rv40 in stream #0, codec
  not curre ntly supported in container Could not write header for
  output file #0 (incorrect codec parameters ?) : Invali d argument Error
  initializing output stream 0:1 — [aac @ 046e1bc0] Qavg : nan
  Conversion failed !

  I read this topic :
  but the solution does not work for me.. After many trials, this is the command that worked (and took too long time) :

  ffmpeg -i 1.rmvb -c:v libx264 -b:a 32k output.mp4

  But I do not want to re-encode the file. Any solution ?

  Edit :
  I tried :

  ffmpeg -i 1.rmvb -c copy 1.mkv

  ffmpeg version N-86447-gfeb13ae Copyright (c) 2000-2017 the FFmpeg
  developers built with gcc 7.1.0 (GCC) configuration : —enable-gpl
  —enable-version3 —enable-cuda —enable-cuvid —e nable-d3d11va —enable-dxva2 —enable-libmfx —enable-nvenc —enable-avisynth — enable-bzlib —enable-fontconfig —enable-frei0r —enable-gnutls
  —enable-iconv
  —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-li bfreetype —enable-libgme —enable-libgsm —enable-libilbc —enable-libmodplug -
  -enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enabl e-libopenh264 —enable-libopenjpeg —enable-libopus —enable-librtmp —enable-li bsnappy —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolam e —enable-libvidstab —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable
  -libxavs —enable-libxvid —enable-libzimg —enable-lzma —enable-zlib libavutil 55. 63.100 / 55. 63.100 libavcodec 57. 98.100 /
  57. 98.100 libavformat 57. 73.100 / 57. 73.100 libavdevice 57. 7.100 / 57. 7.100 libavfilter 6. 92.100 / 6. 92.100 libswscale 4. 7.101 / 4. 7.101 libswresample 2. 8.100 /
  2. 8.100 libpostproc 54. 6.100 / 54. 6.100 [rm @ 033a7520] Invalid stream index 2 for index at pos 206099254 Input #0, rm, from
  ’1.rmvb’ : Metadata :
  title : ArabSeed.CoM
  author : ArabSeed.CoM
  copyright : ArabSeed.CoM
  comment :
  ASMRuleBook : #($Bandwidth >= 0),Stream0Bandwidth = 64082, Stream1Bandwi dth = 285918 ;
  Audiences : Easy RealMedia Tool’s Audience ;
  audioMode : music
  Creation Date : 4/22/2010 4:31:14
  Description : This File is Created by Easy RealMedia Tools@ !
  Email : rick@redcheek.net
  Generated By : Easy RealMedia Tools V1.8x
  HomeWeb : http://redcheek.net
  Keywords : ArabSeed.CoM
  Modification Date : 4/22/2010 4:31:14
  videoMode : normal Duration : 01:16:35.69, start : 0.000000, bitrate : 358 kb/s
  Stream #0:0 : Audio : cook (cook / 0x6B6F6F63), 44100 Hz, stereo, fltp, 64 kb/ s
  Stream #0:1 : Video : rv40 (RV40 / 0x30345652), yuv420p, 720x408, 280 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc Output #0, matroska, to
  ’1.mkv’ : Metadata :
  title : ArabSeed.CoM
  author : ArabSeed.CoM
  copyright : ArabSeed.CoM
  comment :
  ASMRuleBook : #($Bandwidth >= 0),Stream0Bandwidth = 64082, Stream1Bandwi dth = 285918 ;
  Audiences : Easy RealMedia Tool’s Audience ;
  audioMode : music
  Creation Date : 4/22/2010 4:31:14
  Description : This File is Created by Easy RealMedia Tools@ !
  Email : rick@redcheek.net
  Generated By : Easy RealMedia Tools V1.8x
  HomeWeb : http://redcheek.net
  Keywords : ArabSeed.CoM
  Modification Date : 4/22/2010 4:31:14
  videoMode : normal
  encoder : Lavf57.73.100
  Stream #0:0 : Video : rv40 (RV40 / 0x30345652), yuv420p, 720x408, q=2-31, 280 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc
  Stream #0:1 : Audio : cook ([255][255][255][255] / 0xFFFFFFFF), 44100 Hz, ster eo, fltp, 64 kb/s Stream mapping : Stream #0:1 -> #0:0
  (copy) Stream #0:0 -> #0:1 (copy) Press [q] to stop, [?] for help
  [matroska @ 05228980] The Matroska muxer does not yet support muxing
  cook av_interleaved_write_frame() : Not yet implemented in FFmpeg,
  patches welcome Error writing trailer of 1.mkv : Not yet implemented in
  FFmpeg, patches welcome frame= 21 fps=0.0 q=-1.0 Lsize= 0kB
  time=00:00:01.48 bitrate= 0.0kbits /s speed= 148x video:2kB
  audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing ove
  rhead : unknown Conversion failed !

  I also tried :

  ffmpeg -i 1.rmvb -c copy 1.avi
  
  
  
  ffmpeg version N-86447-gfeb13ae Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.1.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
  
  nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
  
  enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
  
  --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
  
  bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
  
  -enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
  
  e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
  
  bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
  
  e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
  
   --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
  
  -libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  
    libavutil      55. 63.100 / 55. 63.100
  
    libavcodec     57. 98.100 / 57. 98.100
  
    libavformat    57. 73.100 / 57. 73.100
  
    libavdevice    57.  7.100 / 57.  7.100
  
    libavfilter     6. 92.100 /  6. 92.100
  
    libswscale      4.  7.101 /  4.  7.101
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  [rm @ 00077520] Invalid stream index 2 for index at pos 206099254
  
  Input #0, rm, from '1.rmvb':
  
    Metadata:
  
      title           : ArabSeed.CoM
  
      author          : ArabSeed.CoM
  
      copyright       : ArabSeed.CoM
  
      comment         :
  
      ASMRuleBook     : #($Bandwidth >= 0),Stream0Bandwidth = 64082, Stream1Bandwi
  
  dth = 285918;
  
      Audiences       : Easy RealMedia Tool's Audience;
  
      audioMode       : music
  
      Creation Date   : 4/22/2010 4:31:14
  
      Description     : This File is Created by Easy RealMedia Tools@!
  
      Email           : rick@redcheek.net
  
      Generated By    : Easy RealMedia Tools V1.8x
  
      HomeWeb         : http://redcheek.net
  
      Keywords        : ArabSeed.CoM
  
      Modification Date: 4/22/2010 4:31:14
  
      videoMode       : normal
  
    Duration: 01:16:35.69, start: 0.000000, bitrate: 358 kb/s
  
      Stream #0:0: Audio: cook (cook / 0x6B6F6F63), 44100 Hz, stereo, fltp, 64 kb/
  
  s
  
      Stream #0:1: Video: rv40 (RV40 / 0x30345652), yuv420p, 720x408, 280 kb/s, 25
  
   fps, 25 tbr, 1k tbn, 1k tbc
  
  Could not write header for output file #0 (incorrect codec parameters ?): Operat
  
  ion not permitted
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (copy)
  
    Stream #0:0 -> #0:1 (copy)
  
      Last message repeated 1 times

• cosmetics : Write NULL pointer equality checks more compactly

  14 août 2014, par Gabriel Dume

  cosmetics : Write NULL pointer equality checks more compactly
  Signed-off-by : Diego Biurrun <diego@biurrun.de>
  

  • [DH] avconv.c
  • [DH] avconv_opt.c
  • [DH] avplay.c
  • [DH] cmdutils.c
  • [DH] compat/getopt.c
  • [DH] libavcodec/atrac3.c
  • [DH] libavcodec/cook.c
  • [DH] libavcodec/dvbsub.c
  • [DH] libavcodec/dvdsubdec.c
  • [DH] libavcodec/dvdsubenc.c
  • [DH] libavcodec/dxa.c
  • [DH] libavcodec/h263dec.c
  • [DH] libavcodec/h264.c
  • [DH] libavcodec/h264_parser.c
  • [DH] libavcodec/h264_ps.c
  • [DH] libavcodec/h264_refs.c
  • [DH] libavcodec/huffyuvdec.c
  • [DH] libavcodec/interplayvideo.c
  • [DH] libavcodec/lcldec.c
  • [DH] libavcodec/libmp3lame.c
  • [DH] libavcodec/libxvid.c
  • [DH] libavcodec/libxvid_rc.c
  • [DH] libavcodec/motion_est.c
  • [DH] libavcodec/mpeg12dec.c
  • [DH] libavcodec/mpegaudiodec_template.c
  • [DH] libavcodec/mpegvideo.c
  • [DH] libavcodec/mpegvideo_enc.c
  • [DH] libavcodec/options.c
  • [DH] libavcodec/opus_celt.c
  • [DH] libavcodec/qdm2.c
  • [DH] libavcodec/roqvideo.c
  • [DH] libavcodec/rv10.c
  • [DH] libavcodec/tiffenc.c
  • [DH] libavcodec/tscc.c
  • [DH] libavcodec/utils.c
  • [DH] libavcodec/vc1dec.c
  • [DH] libavcodec/vp3.c
  • [DH] libavcodec/vp8.c
  • [DH] libavcodec/zmbv.c
  • [DH] libavcodec/zmbvenc.c
  • [DH] libavdevice/v4l2.c
  • [DH] libavformat/avs.c
  • [DH] libavformat/matroskadec.c
  • [DH] libavformat/matroskaenc.c
  • [DH] libavformat/movenc.c
  • [DH] libavformat/mpegts.c
  • [DH] libavformat/nsvdec.c
  • [DH] libavformat/rtpenc.c
  • [DH] libavformat/rtspdec.c
  • [DH] libavformat/rtspenc.c
  • [DH] libavformat/sdp.c
  • [DH] libavutil/eval.c
  • [DH] libavutil/internal.h