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• Decoding h264 in mp4 fragment from IIS Smooth Streaming

  30 novembre 2013, par Julian

  So I've decided to try and make my own client for IIS's Smooth Streaming as a learning exercise and I'm struggling to decode the mp4 fragments.

  I have the following fragment :
  http://www.mediafire.com/download/n32660d920g291c/part+1.mp4

  Which when I try to decode using ffmpeg :

  C:\>ffplay.exe -f h264 -vcodec h264 -g 52 "part 1.mp4"
  
  ffplay version N-58502-g738ebb4 Copyright (c) 2003-2013 the FFmpeg developers built on Nov 27 2013 22:09:34 with gcc 4.8.2 (GCC)
  
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis--enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 55.100 / 52. 55.100
  
    libavcodec     55. 44.100 / 55. 44.100
  
    libavformat    55. 21.102 / 55. 21.102
  
    libavdevice    55.  5.102 / 55.  5.102
  
    libavfilter     3. 91.100 /  3. 91.100
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [h264 @ 0000000001e58260] non-existing PPS referenced    0B f=0/0
  
  [h264 @ 0000000001e58260] non-existing PPS 25 referenced
  
  [h264 @ 0000000001e58260] decode_slice_header error
  
  [h264 @ 0000000001e58260] Invalid mix of idr and non-idr slices
  
  [h264 @ 0000000001e58260] sps_id out of range
  
      Last message repeated 4 times
  
  [h264 @ 0000000001e58260] non-existing PPS referenced
  
  [h264 @ 0000000001e58260] sps_id out of range
  
      Last message repeated 4 times
  
  [h264 @ 0000000001e58260] slice type too large (24) at 0 0
  
  [h264 @ 0000000001e58260] decode_slice_header error
  
  [h264 @ 0000000001e58260] no frame!
  
  [h264 @ 0000000001e4fa00] decoding for stream 0 failed
  
  [h264 @ 0000000001e4fa00] Could not find codec parameters for stream 0 (Video: h264): unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  part 1.mp4: could not find codec parameters

  After reading I found the PPS/SPS comes from the CodecPrivateData in the manifest that IIS gives me, which I have as :

  000000016764001eacd940a03da10005161501312d000f162d960000000168ebe3cb22c0

  Binary : http://www.mediafire.com/download/hm3av6h3i1g7ojf/CodecPrivateData

  Which I think is annex b 00000001[SPS]00000001[PPS] but I have no idea what to do with it, I've tried putting it at the beginning of the file but get the same error, I also tried taking just the data in the mdat and sending that to ffmpeg but I get

  [h264 @ 0000000001da8a80] sps_id out of range 0KB sq=    0B f=0/0
  
  [h264 @ 0000000001da8a80] non-existing PPS referenced
  
  [h264 @ 0000000001da8a80] sps_id out of range
  
  [h264 @ 0000000001da8a80] slice type too large (24) at 0 0
  
  [h264 @ 0000000001da8a80] decode_slice_header error
  
  [h264 @ 0000000001da8a80] no frame!
  
  [h264 @ 0000000001d9fa00] decoding for stream 0 failed
  
  [h264 @ 0000000001d9fa00] Could not find codec parameters for stream 0 (Video: h264): unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  part 1 - Copy.mp4: could not find codec parameters

  So I then tried putting the CodecPrivateData just before the mdat section and I then get this

  [h264 @ 0000000001d38a80] sps_id out of range 0KB sq=    0B f=0/0
  
      Last message repeated 1 times
  
  [h264 @ 0000000001d38a80] slice type too large (24) at 0 0
  
  [h264 @ 0000000001d38a80] decode_slice_header error
  
  [h264 @ 0000000001d38a80] no frame!
  
  [h264 @ 0000000001d2fa00] decoding for stream 0 failed
  
  [h264 @ 0000000001d2fa00] Could not find codec parameters for stream 0 (Video: h264 (High)): unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  part 1 - Copy.mp4: could not find codec parameters

  I seem to be missing something to get this to decode and I'm just not sure what so I'm hoping someone knowledgeable with h264 can help me out ! Ultimately I want to get this working in DirectShow but even getting it to work in ffmpeg would be a massive help !

• avconv : from multiple png to movie not exporting correctly

  13 avril 2016, par abhra

  I am trying to generate a mp4 movie from a set of pngs using avconv on my debian8 system. The mp4 file its generating basically looping over the first figure for some time. Here is the command I am using

  avconv -r 10 -start_number 8 -i images_%06d.png -b:v 1000k -vf scale=640 :-1 test.mp4

  Output is

  avconv version 11.6-6:11.6-1 deb8u1, Copyright (c) 2000-2014 the Libav developers built on Mar 2 2016 23:00:02 with gcc 4.9.2
  (Debian 4.9.2-10) Input #0, image2, from ’images_%06d.png’ :
  Duration : 00:00:16.00, start : 0.000000, bitrate : N/A
  Stream #0.0 : Video : png, rgb24, 2400x1801, 25 fps, 25 tbn File ’test.mp4’ already exists. Overwrite ? [y/N] y [scale @ 0x820c60] The
  ::flags= option syntax is deprecated. Use either
  : : or w=:h=:flags=. [libx264 @ 0x837760]
  using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT
  BMI2 [libx264 @ 0x837760] profile High, level 2.2 [libx264 @ 0x837760]
  264 - core 142 r2431 a5831aa - H.264/MPEG-4 AVC codec - Copyleft
  2003-2014 - 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=12
  lookahead_threads=2 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=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr
  mbtree=1 bitrate=1000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4
  ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to ’test.mp4’ : Metadata :
  encoder : Lavf56.1.0
  Stream #0.0 : Video : libx264, yuv420p, 640x480, q=-1—1, 1000 kb/s, 10 fps, 10 tbn, 10 tbc
  Metadata :
  encoder : Lavc56.1.0 libx264 Stream mapping : Stream #0:0 -> #0:0 (png (native) -> h264 (libx264)) Press ctrl-c to stop encoding frame= 17 fps= 0 q=0.0 size= 0kB time=10000000000.00
  bitrate= 0.0kbitframe= 34 fps= 32 q=0.0 size= 0kB
  time=10000000000.00 bitrate= 0.0kbitframe= 51 fps= 32 q=0.0 size=
  0kB time=10000000000.00 bitrate= 0.0kbitframe= 393 fps= 32 q=0.0
  Lsize= 139kB time=39.00 bitrate= 29.2kbits/s video:132kB
  audio:0kB other streams:0kB global headers:0kB muxing overhead :
  5.284794% [libx264 @ 0x837760] frame I:2 Avg QP : 3.69 size : 51320 [libx264 @ 0x837760] frame P:99 Avg QP : 0.32 size : 242 [libx264
  @ 0x837760] frame B:292 Avg QP : 0.15 size : 26 [libx264 @
  0x837760] consecutive B-frames : 0.8% 0.5% 0.0% 98.7% [libx264 @
  0x837760] mb I I16..4 : 45.5% 19.2% 35.3% [libx264 @ 0x837760] mb P
  I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.9% 0.0% 0.0% 0.0% 0.0%
  skip:99.0% [libx264 @ 0x837760] mb B I16..4 : 0.0% 0.0% 0.0%
  B16..8 : 0.2% 0.0% 0.0% direct : 0.0% skip:99.8% L0:22.3% L1:77.7%
  BI : 0.0% [libx264 @ 0x837760] final ratefactor : -21.09 [libx264 @
  0x837760] 8x8 transform intra:18.9% inter:41.7% [libx264 @ 0x837760]
  coded y,uvDC,uvAC intra : 34.1% 0.0% 0.0% inter : 0.1% 0.0% 0.0%
  [libx264 @ 0x837760] i16 v,h,dc,p : 81% 14% 5% 0% [libx264 @
  0x837760] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 49% 14% 36% 0% 0% 0% 0%
  0% 0% [libx264 @ 0x837760] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 36% 28% 19%
  3% 3% 2% 4% 2% 3% [libx264 @ 0x837760] i8c dc,h,v,p : 100% 0% 0%
  0% [libx264 @ 0x837760] Weighted P-Frames : Y:0.0% UV:0.0% [libx264 @
  0x837760] ref P L0 : 99.3% 0.0% 0.6% 0.1% [libx264 @ 0x837760] ref B
  L0 : 4.2% 95.8% [libx264 @ 0x837760] ref B L1 : 99.8% 0.2% [libx264 @
  0x837760] kb/s:27.34

  I have also tried

  cat *.png | avconv -f image2pipe -i - -b:v 1000k -vf scale=640 :-1 test2.mp4

  output shows

  avconv version 11.6-6:11.6-1 deb8u1, Copyright (c) 2000-2014 the Libav developers built on Mar 2 2016 23:00:02 with gcc 4.9.2
  (Debian 4.9.2-10) Codec AVOption b (set bitrate (in bits/s)) specified
  for output file #0 (test2.mp4) has not been used for any stream. The
  most likely reason is either wrong type (e.g. a video option with no
  video streams) or that it is a private option of some encoder which
  was not actually used for any stream. Output #0, image2pipe, to
  ’test2.mp4’ : Output file #0 does not contain any stream

  When getting frames fromtest.mp4

  avconv -i test.mp4 -r 30 -f image2 %04d.png

  I found 1000 or more copies of the images_000001.png.

  Would you please help, whether I have made any mistake in commands ? Or am I missing some codec options ? Thanks for the help.

• ffmpeg drops all frames after 6 seconds

  25 juin 2014, par user2099107

  New to FFMPEG, I’m trying to create a video from a set of png.

  I have 96 png and I’m looking to 4 FPS (24 seconds of video)

  I use the following command :

  /Applications/ffmpeg -y -r 4 -pattern_type glob -i './images/*.png' -c:v libx264 -pix_fmt yuv420p out.mp4 

  my out.mp4 always commes out as roughly 6 seconds with 24 frames, the last 70 frames being dropped.

  here is the full output :

      ffmpeg version 2.2.3-tessus Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Jun  4 2014 21:31:51 with clang version 3.3 (tags/RELEASE_33/final)
  
    configuration: --cc=/opt/local/bin/clang-mp-3.3 --prefix=/Users/tessus/data/ext/ffmpeg/sw --as=yasm --extra-version=tessus --disable-shared --enable-static --disable-ffplay --enable-gpl --enable-pthreads --enable-postproc --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libx265 --enable-libxvid --enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-version3 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm --enable-libopus --enable-libmodplug --enable-fontconfig --enable-libfreetype --enable-libass --enable-libbluray --enable-filters --disable-indev=qtkit --enable-runtime-cpudetect
  
    libavutil      52. 66.100 / 52. 66.100
  
    libavcodec     55. 52.102 / 55. 52.102
  
    libavformat    55. 33.100 / 55. 33.100
  
    libavdevice    55. 10.100 / 55. 10.100
  
    libavfilter     4.  2.100 /  4.  2.100
  
    libswscale      2.  5.102 /  2.  5.102
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, image2, from './images/*.png':
  
    Duration: 00:00:03.84, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, rgba, 1280x1024, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  [libx264 @ 0x103000600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x103000600] profile High, level 3.2
  
  [libx264 @ 0x103000600] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=12 lookahead_threads=2 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=4 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
  
  Output #0, mp4, to '/Users/adrien/code/encoding/out.mp4':
  
    Metadata:
  
      encoder         : Lavf55.33.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x1024, q=-1--1, 16384 tbn, 4 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png -> libx264)
  
  Press [q] to stop, [?] for help
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgba to size:1280x1024 fmt:rgb24
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgb24 to size:1280x1024 fmt:rgba
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgba to size:1280x1024 fmt:rgb24
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgb24 to size:1280x1024 fmt:rgba
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgba to size:1280x1024 fmt:rgb24
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgb24 to size:1280x1024 fmt:rgba
  
  Input stream #0:0 frame changed from size:1280x1024 fmt:rgba to size:1280x1024 fmt:rgb24
  
  frame=   26 fps= 21 q=-1.0 Lsize=     165kB time=00:00:06.00 bitrate= 224.9kbits/s dup=0 drop=70    
  
  video:164kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.661924%
  
  [libx264 @ 0x103000600] frame I:1     Avg QP: 9.66  size:100467
  
  [libx264 @ 0x103000600] frame P:8     Avg QP:14.08  size:  7610
  
  [libx264 @ 0x103000600] frame B:17    Avg QP:18.26  size:   322
  
  [libx264 @ 0x103000600] consecutive B-frames: 11.5%  0.0% 11.5% 76.9%
  
  [libx264 @ 0x103000600] mb I  I16..4: 23.4% 49.5% 27.1%
  
  [libx264 @ 0x103000600] mb P  I16..4:  3.6%  3.7%  1.3%  P16..4:  1.0%  0.1%  0.2%  0.0%  0.0%    skip:90.1%
  
  [libx264 @ 0x103000600] mb B  I16..4:  0.1%  0.0%  0.1%  B16..8:  1.3%  0.0%  0.0%  direct: 0.0%  skip:98.4%  L0:46.1% L1:53.9% BI: 0.0%
  
  [libx264 @ 0x103000600] 8x8 transform intra:45.8% inter:25.7%
  
  [libx264 @ 0x103000600] coded y,uvDC,uvAC intra: 46.0% 62.8% 42.9% inter: 0.1% 0.2% 0.1%
  
  [libx264 @ 0x103000600] i16 v,h,dc,p: 58% 25% 15%  2%
  
  [libx264 @ 0x103000600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 44% 22% 24%  3%  1%  1%  3%  1%  1%
  
  [libx264 @ 0x103000600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 48% 20% 12%  3%  3%  4%  3%  3%  3%
  
  [libx264 @ 0x103000600] i8c dc,h,v,p: 49% 20% 28%  3%
  
  [libx264 @ 0x103000600] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x103000600] ref P L0: 86.0%  5.3%  7.2%  1.5%
  
  [libx264 @ 0x103000600] ref B L0: 61.7% 35.8%  2.5%
  
  [libx264 @ 0x103000600] ref B L1: 95.8%  4.2%
  
  [libx264 @ 0x103000600] kb/s:205.33