ArrayIndexOutOfBoundsException 30000

[alpacaaa]

Hey man, great library!

I'm using it on OSX, I can run the examples fine but unfortunately I get the exception ArrayIndexOutOfBoundsException 30000 in another project of mine. I'm not too familiar with java and processing, so I don't know how to debug this, do you have any hint?

It creates an .mp4 file but it's empty and the whole sketch just crashes. This is a dump of the .txt file created by the library:

ffmpeg version 2.6 Copyright (c) 2000-2015 the FFmpeg developers
  built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6_1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
  libavutil      54. 20.100 / 54. 20.100
  libavcodec     56. 26.100 / 56. 26.100
  libavformat    56. 25.101 / 56. 25.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 11.102 /  5. 11.102
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, rawvideo, from 'pipe:':
  Duration: N/A, bitrate: 90000 kb/s
    Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 500x250, 90000 kb/s, 30 tbr, 30 tbn, 30 tbc
[libx264 @ 0x7fb1f9825a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fb1f9825a00] profile High, level 2.1
[libx264 @ 0x7fb1f9825a00] 264 - core 144 r2533 c8a773e - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=15.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/Users/marco/test/basic.mp4':
  Metadata:
    comment         : Exported using VideoExport for Processing - https://github.com/hamoid/VideoExport-for-Processing
    encoder         : Lavf56.25.101
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 500x250, q=-1--1, 30 fps, 15360 tbn, 30 tbc
    Metadata:
      encoder         : Lavc56.26.100 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Thank you!

[hamoid]

Thanks! Can you send me a minimum example that suffers from this issue? I need to be able to reproduce the issue to be able to fix it. And as the examples work, maybe it's something that is happening only in your program? Cheers!

[alpacaaa]

Found the issue! I was instantiating the VideoExport object before calling size() so the pixelsByte array was empty. You might want to add this to the docs ;)

Anyway, very helpful and well done library, thanks again!

[hamoid]

Great that you found it! I'll add that to the docs :)

On 07/13/2015 10:17 AM, Marco Sampellegrini wrote:

Closed #4 https://github.com/hamoid/video_export_processing/issues/4.

— Reply to this email directly or view it on GitHub https://github.com/hamoid/video_export_processing/issues/4#event-354101720.

[hamoid]

Better, I will check for this situation in the source code, so you get a message saying that you should call size() first.

[alpacaaa]

That sounds great :)