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• Invalid data found when processing file with ffmpeg API

  18 septembre 2019, par Timmy K

  I have an m4a file containing two AAC-encoded audio streams. I want to decode it on Android with the ffmpeg library. However, avformat_open_input() fails with "Invalid data found when processing input".

  This file was created (i.e. the audio data encoded) with the same library.

  I’ve double-checked the accuracy of the file path I provide to the call.

  The file doesn’t appear to be corrupt. It plays with QuickTime player, and ffprobe reports the output below.

  I’ve looked at the source in ffmpeg’s utils.c but it’s not clear at which of several points (including nested calls) this invalidity of the data in the file is being decided.

  FFPROBE OUTPUT
  
  built with gcc 7.2.0 (crosstool-NG fa8859cb)
  
  configuration: --prefix=/home/ubuntu/miniconda3 --disable-doc --enable- 
  
  shared --extra-cflags='-fPIC -I/home/ubuntu/miniconda3/include' --extra-
  
  cxxflags='=-fPIC' --extra-libs='-L/home/ubuntu/miniconda3/lib -lz' --enable-
  
  pic --disable-static --disable-gpl --disable-nonfree --disable-openssl --
  
  enable-libvpx --cc=/opt/conda/conda- 
  
  bld/ffmpeg_1530807717919/_build_env/bin/x86_64-conda_cos6-linux-gnu-cc --cxx=/opt/conda/conda-bld/ffmpeg_1530807717919/_build_env/bin/x86_64-conda_cos6-linux-gnu-c++ --enable-libopus
  
      libavutil            55. 78.100 / 55. 78.100
  
      libavcodec         57.107.100 / 57.107.100
  
      libavformat        57. 83.100 / 57. 83.100
  
      libavdevice        57. 10.100 / 57. 10.100
  
      libavfilter         6.107.100 /    6.107.100
  
      libswscale            4.    8.100 /    4.    8.100
  
      libswresample     2.    9.100 /    2.    9.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'recording-2019-09-03-110626.m4a':
  
      Metadata:
  
          major_brand         : isom
  
          minor_version     : 512
  
          compatible_brands: isomiso2mp41
  
          encoder                 : Lavf58.27.103
  
      Duration: 00:00:05.04, start: 0.000000, bitrate: 637 kb/s
  
          Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 314 kb/s (default)
  
          Metadata:
  
              handler_name        : SoundHandler
  
          Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 315 kb/s (default)
  
          Metadata:
  
              handler_name        : SoundHandler

  The call that fails with "invalid data found" is :

   if ( (ret = avformat_open_input( &inputFormatContext, filePath, 0, 0)) < 0 )
  
    {
  
      __android_log_print(ANDROID_LOG_DEBUG, "MyTag", "Could not open input file '%s' error %s ", filePath, av_err2str(ret) );
  
        return false;
  
    }

  I would expect this to "just work" since I encoded and muxed the two audio tracks with the same build of the ffmpeg libraries.

  When I built the libraries, I configured the build with :

  —enable-decoder=aac,pcm_s16le —enable-encoder=aac,pcm_s16le —enable-demuxer=mp4,wav —enable-muxer=mp4,wav —enable-protocol=file,http

  When I iterate through the codecs using av_codec_iterate() and look for supported sample rates I see :

  Found codec aac
  
  supported sample rate 96000
  
  supported sample rate 88200
  
  supported sample rate 64000
  
  supported sample rate 48000
  
  supported sample rate 44100
  
  supported sample rate 32000
  
  supported sample rate 24000
  
  supported sample rate 22050
  
  supported sample rate 16000
  
  supported sample rate 12000
  
  supported sample rate 11025
  
  supported sample rate 8000
  
  supported sample rate 7350
  
  Found codec pcm_s16le
  
  Found codec aac
  
  Found codec pcm_s16le 

  Each codec appears twice, which I thought was maybe the encoder and decoder. But I note that only one has any supported sample rates. My test files’ sample rate is 44100.

  Any thoughts on what other things I can check for ? I wondered whether I should create and pass an AVInputFormat object explicitly to the call, based upon what I know about the contents of the file. But I don’t know how to construct one.

• configure.ac : check for sys/auxv.h before defining FLAC__CPU_PPC

  19 septembre 2019, par Peter Seiderer

  configure.ac : check for sys/auxv.h before defining FLAC__CPU_PPC
  Signed-off-by : Peter Seiderer <ps.report@gmx.net>
  
  — -
  
  Note : One of the buildroot autobuilder provided powerpc toolchains
  
  seem to not provide the sys/auxv.h header file, resulting in a
  
  compile failure (see [1] for details).
  [1] http://lists.busybox.net/pipermail/buildroot/2019-September/259732.html
  

  • [DH] configure.ac

• FFMPEG encrypted HLS single file is unplayable

  17 septembre 2019, par 3bodyZZ

  i use this command to generate the byterange segments

  ffmpeg -i test.mp4 -hls_time 20 -hls_flags single_file -hls_key_info_file key_info out.m3u8
  here is the output m3u8

  #EXTM3U
  
  #EXT-X-VERSION:4
  
  #EXT-X-TARGETDURATION:24
  
  #EXT-X-MEDIA-SEQUENCE:0
  
  #EXT-X-KEY:METHOD=AES-128,URI="key.bin"
  
  #EXTINF:23.933333,
  
  #EXT-X-BYTERANGE:1016328@0
  
  out.ts
  
  #EXTINF:19.200000,
  
  #EXT-X-BYTERANGE:824192@1016328
  
  out.ts
  
  #EXTINF:16.866667,
  
  #EXT-X-BYTERANGE:714024@1840520
  
  out.ts
  
  #EXT-X-ENDLIST

  and it does output incorrect byte range m3u8 file that is unplayable, i have tried the multiple segments and it works just fine but i need the single file, any one knows how to fix this ?

  here is the logs from ffmpeg

  ffmpeg version N-94167-ga514244319 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.1.1 (GCC) 20190621
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 30.100 / 56. 30.100
  
    libavcodec     58. 53.101 / 58. 53.101
  
    libavformat    58. 28.101 / 58. 28.101
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 56.100 /  7. 56.100
  
    libswscale      5.  4.101 /  5.  4.101
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ttt.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:01:00.16, start: 0.000000, bitrate: 227 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 480x320, 157 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 000001df1e25dd80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000001df1e25dd80] profile Progressive High, level 2.1, 4:2:0, 8-bit
  
  [libx264 @ 000001df1e25dd80] 264 - core 157 r2970 5493be8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [hls @ 000001df1e25ac80] Opening 'key_info' for reading
  
  [hls @ 000001df1e25ac80] Opening 'key.bin' for reading
  
  [hls @ 000001df1e25ac80] Opening 'crypto:out.ts' for writing
  
  Output #0, hls, to 'out.m3u8':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.28.101
  
      Stream #0:0(und): Video: h264 (libx264), yuv420p, 480x320, q=-1--1, 30 fps, 90k tbn, 30 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc58.53.101 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
        encoder         : Lavc58.53.101 aac
  
  [hls @ 000001df1e25ac80] Opening 'out.m3u8.tmp' for writinge=N/A speed=25.4x
  
  [hls @ 000001df1e25ac80] Opening 'out.m3u8.tmp' for writinge=N/A speed=23.8x
  
  [hls @ 000001df1e25ac80] Opening 'out.m3u8.tmp' for writinge=N/A speed=23.7x
  
  frame= 1800 fps=723 q=-1.0 Lsize=N/A time=00:01:00.11 bitrate=N/A speed=24.1x
  
  video:1196kB audio:947kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [libx264 @ 000001df1e25dd80] frame I:25    Avg QP:18.20  size: 18883
  
  [libx264 @ 000001df1e25dd80] frame P:524   Avg QP:21.64  size:  1174
  
  [libx264 @ 000001df1e25dd80] frame B:1251  Avg QP:30.70  size:   109
  
  [libx264 @ 000001df1e25dd80] consecutive B-frames:  4.2%  7.6%  5.8% 82.4%
  
  [libx264 @ 000001df1e25dd80] mb I  I16..4: 29.1%  8.6% 62.3%
  
  [libx264 @ 000001df1e25dd80] mb P  I16..4:  1.1%  0.8%  1.1%  P16..4: 14.6%  3.7%  2.2%  0.0%  0.0%    skip:76.5%
  
  [libx264 @ 000001df1e25dd80] mb B  I16..4:  0.0%  0.0%  0.1%  B16..8:  7.1%  0.5%  0.1%  direct: 0.2%  skip:92.0%  L0:47.1% L1:51.6% BI: 1.3%
  
  [libx264 @ 000001df1e25dd80] 8x8 transform intra:15.8% inter:36.0%
  
  [libx264 @ 000001df1e25dd80] coded y,uvDC,uvAC intra: 47.5% 75.5% 54.9% inter: 1.7% 4.4% 0.7%
  
  [libx264 @ 000001df1e25dd80] i16 v,h,dc,p: 48% 45%  5%  2%
  
  [libx264 @ 000001df1e25dd80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 20% 48%  2%  2%  1%  2%  2%  3%
  
  [libx264 @ 000001df1e25dd80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 27% 12%  7%  6%  5%  6%  5%  6%
  
  [libx264 @ 000001df1e25dd80] i8c dc,h,v,p: 34% 37% 21%  7%
  
  [libx264 @ 000001df1e25dd80] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000001df1e25dd80] ref P L0: 83.5%  4.4%  9.5%  2.6%
  
  [libx264 @ 000001df1e25dd80] ref B L0: 90.1%  8.9%  1.0%
  
  [libx264 @ 000001df1e25dd80] ref B L1: 95.4%  4.6%
  
  [libx264 @ 000001df1e25dd80] kb/s:163.19
  
  [aac @ 000001df1e2138c0] Qavg: 357.178

  i have also tried different videos, and i have tried ffmpeg on windows and linux , i have tried compiling it myself and nothing seems to work the segments keeps repeating after reaching a certain point in the video