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• FFMPEG : i need audio channels 7 & 8 to be the main audio track for a video

  10 avril 2013, par lo_fye

  I have a video with 8 channels of audio.

  I need tracks 7 (Left Stereo) and 8 (Right Stereo) to be the audio for the video (which I'm converting to flv).

  I've tried playing with -filter_complex and the join, amix, and amerge filters, as well as the -map parameter, but I can't seem to find the right combination of values :-/

  Output :

  /usr/local/bin/ffmpeg-1.0/bin/ffmpeg -i '/folder/video_name.mov' -f 'flv' \
  
  -s '320x240' -b '250k' -aspect '4:3' -ac 1 -ab '64k' -ar '22050' -y \
  
  /folder/video_name.flv
  
  
  
  ffmpeg version N-46241-g09ea482 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Nov  5 2012 07:33:09 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-46)
  
    configuration: --prefix=/usr/local/bin/ffmpeg-1.0
  
    libavutil      52.  1.100 / 52.  1.100
  
    libavcodec     54. 70.100 / 54. 70.100
  
    libavformat    54. 35.100 / 54. 35.100
  
    libavdevice    54.  3.100 / 54.  3.100
  
    libavfilter     3. 21.105 /  3. 21.105
  
    libswscale      2.  1.101 /  2.  1.101
  
    libswresample   0. 16.100 /  0. 16.100
  
  Guessed Channel Layout for  Input Stream #0.1 : mono
  
  Guessed Channel Layout for  Input Stream #0.2 : mono
  
  Guessed Channel Layout for  Input Stream #0.3 : mono
  
  Guessed Channel Layout for  Input Stream #0.4 : mono
  
  Guessed Channel Layout for  Input Stream #0.5 : mono
  
  Guessed Channel Layout for  Input Stream #0.6 : mono
  
  Guessed Channel Layout for  Input Stream #0.7 : mono
  
  Guessed Channel Layout for  Input Stream #0.8 : mono
  
  Guessed Channel Layout for  Input Stream #0.9 : mono
  
  Guessed Channel Layout for  Input Stream #0.10 : mono
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/folder/video_name.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      creation_time   : 2013-04-03 19:45:26
  
    Duration: 00:00:39.03, start: 0.000000, bitrate: 122149 kb/s
  
      Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le, 1920x1080, 110585 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 23976 tbn, 23976 tbc
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
        timecode        : 00:59:53:00
  
      Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:2(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:3(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:4(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:5(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:6(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:7(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:8(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:9(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:10(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:11(eng): Data: none (tmcd / 0x64636D74)
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:30
  
        handler_name    : Apple Alias Data Handler
  
        timecode        : 00:59:53:00
  
  Please use -b:a or -b:v, -b is ambiguous
  
  Output #0, flv, to '/folder/video_name.flv':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      encoder         : Lavf54.35.100
  
      Stream #0:0(eng): Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 250 kb/s, 1k tbn, 23.98 tbc
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
        timecode        : 00:59:53:00
  
      Stream #0:1(eng): Audio: adpcm_swf ([1][0][0][0] / 0x0001), 22050 Hz, mono, s16, 88 kb/s
  
      Metadata:
  
        creation_time   : 2013-04-03 19:45:26
  
        handler_name    : Apple Alias Data Handler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (prores -> flv)
  
    Stream #0:1 -> #0:1 (pcm_s24le -> adpcm_swf)
  
  Press [q] to stop, [?] for help
  
  frame=   33 fps=0.0 q=2.0 size=     108kB time=00:00:01.99 bitrate= 442.4kbits/s    
  
  frame=   66 fps= 65 q=2.0 size=     225kB time=00:00:02.97 bitrate= 619.0kbits/s    
  
  frame=   99 fps= 65 q=2.0 size=     341kB time=00:00:04.96 bitrate= 561.8kbits/s    
  
  frame=  136 fps= 67 q=2.0 size=     400kB time=00:00:05.99 bitrate= 547.5kbits/s    
  
  frame=  177 fps= 70 q=3.0 size=     482kB time=00:00:07.98 bitrate= 494.3kbits/s    
  
  frame=  210 fps= 69 q=3.7 size=     590kB time=00:00:08.96 bitrate= 539.7kbits/s    
  
  frame=  240 fps= 68 q=6.3 size=     660kB time=00:00:10.01 bitrate= 539.7kbits/s    
  
  frame=  264 fps= 65 q=6.7 size=     719kB time=00:00:11.01 bitrate= 535.2kbits/s    
  
  frame=  288 fps= 63 q=8.4 size=     772kB time=00:00:12.02 bitrate= 526.1kbits/s    
  
  frame=  312 fps= 62 q=15.4 size=     829kB time=00:00:13.65 bitrate= 497.4kbits/s    
  
  frame=  336 fps= 60 q=10.4 size=     875kB time=00:00:14.02 bitrate= 511.1kbits/s    
  
  frame=  360 fps= 59 q=10.6 size=     916kB time=00:00:15.01 bitrate= 499.9kbits/s    
  
  frame=  383 fps= 58 q=17.8 size=     957kB time=00:00:15.97 bitrate= 490.6kbits/s    
  
  frame=  411 fps= 58 q=6.5 size=    1008kB time=00:00:17.97 bitrate= 459.3kbits/s    
  
  frame=  437 fps= 57 q=9.7 size=    1046kB time=00:00:18.99 bitrate= 451.3kbits/s    
  
  frame=  460 fps= 57 q=7.7 size=    1086kB time=00:00:20.01 bitrate= 444.6kbits/s    
  
  frame=  489 fps= 57 q=11.3 size=    1144kB time=00:00:20.99 bitrate= 446.3kbits/s    
  
  frame=  512 fps= 56 q=10.3 size=    1182kB time=00:00:22.01 bitrate= 439.8kbits/s    
  
  frame=  535 fps= 55 q=21.5 size=    1225kB time=00:00:22.98 bitrate= 436.7kbits/s    
  
  frame=  564 fps= 55 q=18.3 size=    1280kB time=00:00:24.00 bitrate= 436.8kbits/s    
  
  frame=  587 fps= 55 q=8.5 size=    1311kB time=00:00:24.98 bitrate= 429.7kbits/s    
  
  frame=  610 fps= 54 q=11.9 size=    1349kB time=00:00:26.00 bitrate= 424.9kbits/s    
  
  frame=  636 fps= 54 q=7.5 size=    1383kB time=00:00:26.98 bitrate= 419.8kbits/s    
  
  frame=  659 fps= 54 q=9.6 size=    1421kB time=00:00:28.00 bitrate= 415.6kbits/s    
  
  frame=  683 fps= 54 q=20.0 size=    1471kB time=00:00:29.02 bitrate= 415.1kbits/s    
  
  frame=  711 fps= 54 q=6.4 size=    1518kB time=00:00:30.00 bitrate= 414.5kbits/s    
  
  frame=  742 fps= 54 q=6.2 size=    1558kB time=00:00:31.02 bitrate= 411.5kbits/s    
  
  frame=  774 fps= 54 q=2.5 size=    1601kB time=00:00:33.01 bitrate= 397.1kbits/s    
  
  frame=  816 fps= 55 q=2.0 size=    1632kB time=00:00:34.50 bitrate= 387.6kbits/s    
  
  frame=  861 fps= 56 q=2.0 size=    1670kB time=00:00:35.99 bitrate= 380.1kbits/s    
  
  frame=  905 fps= 57 q=2.0 size=    1706kB time=00:00:38.03 bitrate= 367.4kbits/s    
  
  frame=  936 fps= 58 q=2.0 Lsize=    1730kB time=00:00:39.05 bitrate= 362.8kbits/s
  
  video:1278kB audio:423kB subtitle:0 global headers:0kB muxing overhead 1.654557%

• Streaming video from an image using FFMPEG on Windows

  26 mai 2013, par Daniel Zohar

  I wrote a program that simulates a camera and converts the output into a video stream. The program is required to be able to run on Windows.
  There are two components in the system :

  1. Camera Simulator. A C++ program that simulates the camera. It copies a pre-generated frame (i.e. PNG file) every 0.1 seconds, using the windows copy command, to a destination path ./target/target_image.png
  2. Video Stream. Using FFmpeg, it creates a video stream out of the copied images. FFmpeg is ran with the following command :
     ffmpeg -loop 1 -i ./target/target_image.png -r 10 -vcodec mpeg4 -f mpegts udp://127.0.0.1:1234

  When running the whole thing together, it works fine for a few seconds until the ffmpeg halts. Here is a log while running in debug mode :

  ffmpeg version N-52458-gaa96439 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Apr 24 2013 22:19:32 with gcc 4.8.0 (GCC)
  
    configuration: --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-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 27.101 / 52. 27.101
  
    libavcodec     55.  6.100 / 55.  6.100
  
    libavformat    55.  3.100 / 55.  3.100
  
    libavdevice    55.  0.100 / 55.  0.100
  
    libavfilter     3. 60.101 /  3. 60.101
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Splitting the commandline.
  
  Reading option '-loop' ... matched as AVOption 'loop' with argument '1'.
  
  Reading option '-i' ... matched as input file with argument './target/target_image.png'.
  
  Reading option '-r' ... matched as option 'r' (set frame rate (Hz value, fraction or abbreviation)) with argument '10'.
  
  Reading option '-vcodec' ... matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'mpeg4'.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'mpegts'.
  
  Reading option 'udp://127.0.0.1:1234' ... matched as output file.
  
  Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option loglevel (set logging level) with argument debug.
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input file ./target/target_image.png.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./target/target_image.png.
  
  [AVIOContext @ 02678840] Statistics: 234307 bytes read, 0 seeks
  
  [AVIOContext @ 02678840] Statistics: 221345 bytes read, 0 seeks
  
      Last message repeated 1 times
  
  [AVIOContext @ 02678840] Statistics: 226329 bytes read, 0 seeks
  
      Last message repeated 2 times
  
  [AVIOContext @ 02678840] Statistics: 228676 bytes read, 0 seeks
  
      Last message repeated 2 times
  
  [AVIOContext @ 02678840] Statistics: 230685 bytes read, 0 seeks
  
      Last message repeated 2 times
  
  [AVIOContext @ 02678840] Statistics: 232697 bytes read, 0 seeks
  
      Last message repeated 5 times
  
  [AVIOContext @ 02678840] Statistics: 234900 bytes read, 0 seeks
  
      Last message repeated 2 times
  
  [AVIOContext @ 02678840] Statistics: 236847 bytes read, 0 seeks
  
  [image2 @ 02677ac0] Probe buffer size limit of 5000000 bytes reached
  
  Input #0, image2, from './target/target_image.png':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #0:0, 22, 1/25: Video: png, rgb24, 1274x772 [SAR 1:1 DAR 637:386], 1/25, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Successfully opened the file.
  
  Parsing a group of options: output file udp://127.0.0.1:1234.
  
  Applying option r (set frame rate (Hz value, fraction or abbreviation)) with argument 10.
  
  Applying option vcodec (force video codec ('copy' to copy stream)) with argument mpeg4.
  
  Applying option f (force format) with argument mpegts.
  
  Successfully parsed a group of options.
  
  Opening an output file: udp://127.0.0.1:1234.
  
  Successfully opened the file.
  
  [graph 0 input from stream 0:0 @ 02769280] Setting 'video_size' to value '1274x772'
  
  [graph 0 input from stream 0:0 @ 02769280] Setting 'pix_fmt' to value '2'
  
  [graph 0 input from stream 0:0 @ 02769280] Setting 'time_base' to value '1/25'
  
  [graph 0 input from stream 0:0 @ 02769280] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 0:0 @ 02769280] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 0:0 @ 02769280] Setting 'frame_rate' to value '25/1'
  
  [graph 0 input from stream 0:0 @ 02769280] w:1274 h:772 pixfmt:rgb24 tb:1/25 fr:25/1 sar:1/1 sws_param:flags=2
  
  [format @ 02768ba0] compat: called with args=[yuv420p]
  
  [format @ 02768ba0] Setting 'pix_fmts' to value 'yuv420p'
  
  [auto-inserted scaler 0 @ 02768740] Setting 'w' to value '0'
  
  [auto-inserted scaler 0 @ 02768740] Setting 'h' to value '0'
  
  [auto-inserted scaler 0 @ 02768740] Setting 'flags' to value '0x4'
  
  [auto-inserted scaler 0 @ 02768740] w:0 h:0 flags:'0x4' interl:0
  
  [format @ 02768ba0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
  
  [AVFilterGraph @ 026772c0] query_formats: 4 queried, 3 merged, 1 already done, 0 delayed
  
  [auto-inserted scaler 0 @ 02768740] w:1274 h:772 fmt:rgb24 sar:1/1 -> w:1274 h:772 fmt:yuv420p sar:1/1 flags:0x4
  
  [mpeg4 @ 02785020] detected 4 logical cores
  
  [mpeg4 @ 02785020] intra_quant_bias = 0 inter_quant_bias = -64
  
  [mpegts @ 0277da40] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts
  
  Output #0, mpegts, to 'udp://127.0.0.1:1234':
  
    Metadata:
  
      encoder         : Lavf55.3.100
  
      Stream #0:0, 0, 1/90000: Video: mpeg4, yuv420p, 1274x772 [SAR 1:1 DAR 637:386], 1/10, q=2-31, 200 kb/s, 90k tbn, 10 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png -> mpeg4)
  
  Press [q] to stop, [?] for help
  
  *** drop!
  
      Last message repeated 10 times
  
  frame=   11 fps=0.0 q=4.0 size=     118kB time=00:00:01.10 bitrate= 875.1kbits/s dup=0 drop=11    
  
  Statistics: 242771 bytes read, 0 seeks
  
  [AVIOContext @ 02674a60] Statistics: 246525 bytes read, 0 seeks
  
  *** drop!
  
  [AVIOContext @ 02674a60] Statistics: 230678 bytes read, 0 seeks
  
  [AVIOContext @ 02674a60] Statistics: 244023 bytes read, 0 seeks
  
  *** drop!
  
  [AVIOContext @ 02674a60] Statistics: 246389 bytes read, 0 seeks
  
  
  
  *** drop!
  
  [AVIOContext @ 02674a60] Statistics: 224478 bytes read, 0 seeks
  
  [AVIOContext @ 02674a60] Statistics: 228013 bytes read, 0 seeks
  
  *** drop!
  
  [image2 @ 02677ac0] Could not open file : ./target/target_image.png
  
  ./target/target_image.png: Input/output error
  
  [output stream 0:0 @ 02768c20] EOF on sink link output stream 0:0:default.
  
  No more output streams to write to, finishing.
  
  frame=  164 fps= 17 q=31.0 Lsize=     959kB time=00:00:16.40 bitrate= 478.9kbits/s dup=0 drop=240    
  
  
  
  video:869kB audio:0kB subtitle:0 global headers:0kB muxing overhead 10.285235%
  
  404 frames successfully decoded, 0 decoding errors
  
  [AVIOContext @ 026779c0] Statistics: 0 seeks, 746 writeouts

  It seems to me there's some kind of collision between the reading and writing to/from the same file. What's also interesting is that on Linux (while replacing the copy with cp) the program works just fine.

  Can someone suggest a way to solve this issue ? Alternatives solutions are also acceptable as long as the logical workflow remains the same.

• ffmpeg video stitching error (error while opening decoder...)

  24 mai 2013, par Revoluzifer

  I'm trying to stitch nine videos into one grid using this command :

  /usr/local/bin/ffmpeg -loglevel debug 
  
  -i ./woohoo/7_video.mp4 -i ./woohoo/5_video.mp4 -i ./woohoo/6_video.mp4 
  
  -i ./woohoo/2_video.mp4 -i ./woohoo/8_video.mp4 -i ./woohoo/0_video.mp4 
  
  -i ./woohoo/3_video.mp4 -i ./woohoo/1_video.mp4 -i ./woohoo/10_video.mp4 
  
  -filter_complex "
  
      [0:0]pad=iw:ih[a];[1:0]scale=w=iw/4:h=ih/4[b];[2:0]scale=w=iw/4:h=ih/4[c];
  
      [3:0]scale=w=iw/4:h=ih/4[d];[4:0]scale=w=iw/4:h=ih/4[e];
  
      [5:0]scale=w=iw/4:h=ih/4[f];[6:0]scale=w=iw/4:h=ih/4[g];
  
      [7:0]scale=w=iw/4:h=ih/4[h];[8:0]scale=w=iw/4:h=ih/4[i];
  
      [0:0]scale=w=iw/4:h=ih/4[j];
  
      [a][b]overlay=0*w:0*h[k];[k][c]overlay=1*w:0*h[l];[l][d]overlay=2*w:0*h[m];
  
      [m][e]overlay=0*w:1*h[n];[n][f]overlay=1*w:1*h[o];[o][g]overlay=2*w:1*h[p];
  
      [p][h]overlay=0*w:2*h[q];[q][i]overlay=1*w:2*h[r];[r][j]overlay=2*w:2*h
  
      " 
  
  -c:v libx264 -an -r 30 -q:v 0 -threads 0 ./woohoo/10_video_out.mp4

  I'm running Ubuntu 10.04 LTS

  The complete output given by ffmpeg looks like this :

  ffmpeg version N-52943-g500220a Copyright (c) 2000-2013 the FFmpeg developers
  
    built on May 23 2013 16:44:21 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  
    configuration: --enable-gpl --enable-version3 --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-zlib
  
    libavutil      52. 30.100 / 52. 30.100
  
    libavcodec     55.  7.100 / 55.  7.100
  
    libavformat    55.  4.101 / 55.  4.101
  
    libavdevice    55.  0.100 / 55.  0.100
  
    libavfilter     3. 63.101 /  3. 63.101
  
    libswscale      2.  3.100 /  2.  3.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Splitting the commandline.
  
  
  
  (...)
  
  
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input file ./woohoo/7_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/7_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2919e20] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2919e20] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2919e20] File position before avformat_find_stream_info() is 969848
  
  [h264 @ 0x291aa80] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2919e20] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2919e20] File position after avformat_find_stream_info() is 19245
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/7_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:14.93, start: 0.000000, bitrate: 519 kb/s
  
      Stream #0:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 516 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/5_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/5_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x291f580] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x291f580] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x291f580] File position before avformat_find_stream_info() is 990829
  
  [h264 @ 0x2920340] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x291f580] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x291f580] File position after avformat_find_stream_info() is 15914
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/5_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:14.93, start: 0.000000, bitrate: 530 kb/s
  
      Stream #1:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 528 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/6_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/6_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2921aa0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2921aa0] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2921aa0] File position before avformat_find_stream_info() is 709220
  
  [h264 @ 0x2935f60] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2921aa0] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2921aa0] File position after avformat_find_stream_info() is 22467
  
  Input #2, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/6_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:15.00, start: 0.000000, bitrate: 378 kb/s
  
      Stream #2:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 375 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/2_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/2_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29ad800] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29ad800] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29ad800] File position before avformat_find_stream_info() is 928241
  
  [h264 @ 0x29b1040] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29ad800] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29ad800] File position after avformat_find_stream_info() is 28508
  
  Input #3, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/2_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:14.87, start: 0.000000, bitrate: 499 kb/s
  
      Stream #3:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 496 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/8_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/8_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29b2f00] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29b2f00] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29b2f00] File position before avformat_find_stream_info() is 1038553
  
  [h264 @ 0x29b3cc0] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29b2f00] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29b2f00] File position after avformat_find_stream_info() is 20282
  
  Input #4, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/8_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:15.03, start: 0.000000, bitrate: 552 kb/s
  
      Stream #4:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 549 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/0_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/0_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2a30f20] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2a30f20] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2a30f20] File position before avformat_find_stream_info() is 1158061
  
  [h264 @ 0x2a318e0] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2a30f20] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2a30f20] File position after avformat_find_stream_info() is 19639
  
  Input #5, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/0_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:15.03, start: 0.000000, bitrate: 616 kb/s
  
      Stream #5:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 614 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/3_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/3_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ac6ba0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ac6ba0] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ac6ba0] File position before avformat_find_stream_info() is 1102892
  
  [h264 @ 0x2ab4f00] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ac6ba0] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ac6ba0] File position after avformat_find_stream_info() is 22585
  
  Input #6, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/3_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:15.03, start: 0.000000, bitrate: 586 kb/s
  
      Stream #6:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 583 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/1_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/1_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ab6b20] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ab6b20] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ab6b20] File position before avformat_find_stream_info() is 933389
  
  [h264 @ 0x2ad7d80] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ab6b20] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ab6b20] File position after avformat_find_stream_info() is 20610
  
  Input #7, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/1_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:14.97, start: 0.000000, bitrate: 498 kb/s
  
      Stream #7:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 495 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file ./woohoo/10_video.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ./woohoo/10_video.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ad9ac0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ad9ac0] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ad9ac0] File position before avformat_find_stream_info() is 933355
  
  [h264 @ 0x2ada4a0] no picture 
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ad9ac0] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ad9ac0] File position after avformat_find_stream_info() is 21283
  
  Input #8, mov,mp4,m4a,3gp,3g2,mj2, from './woohoo/10_video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
    Duration: 00:00:15.03, start: 0.000000, bitrate: 496 kb/s
  
      Stream #8:0(und), 1, 1/15360: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/60, 493 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Successfully opened the file.
  
  Parsing a group of options: output file ./woohoo/10_video_out.mp4.
  
  Applying option c:v (codec name) with argument libx264.
  
  Applying option an (disable audio) with argument 1.
  
  Applying option r (set frame rate (Hz value, fraction or abbreviation)) with argument 30.
  
  Applying option q:v (use fixed quality scale (VBR)) with argument 0.
  
  Successfully parsed a group of options.
  
  Opening an output file: ./woohoo/10_video_out.mp4.
  
  [Parsed_pad_0 @ 0x2cb42a0] Setting 'width' to value 'iw'
  
  [Parsed_pad_0 @ 0x2cb42a0] Setting 'height' to value 'ih'
  
  [Parsed_scale_1 @ 0x2cb58a0] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_1 @ 0x2cb58a0] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_1 @ 0x2cb58a0] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_2 @ 0x2cb6a60] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_2 @ 0x2cb6a60] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_2 @ 0x2cb6a60] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_3 @ 0x2cb7920] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_3 @ 0x2cb7920] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_3 @ 0x2cb7920] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_4 @ 0x2cb8580] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_4 @ 0x2cb8580] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_4 @ 0x2cb8580] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_5 @ 0x2d2f0c0] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_5 @ 0x2d2f0c0] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_5 @ 0x2d2f0c0] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_6 @ 0x2d302a0] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_6 @ 0x2d302a0] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_6 @ 0x2d302a0] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_7 @ 0x2d31060] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_7 @ 0x2d31060] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_7 @ 0x2d31060] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_8 @ 0x2d31d60] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_8 @ 0x2d31d60] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_8 @ 0x2d31d60] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_scale_9 @ 0x2d32c60] Setting 'w' to value 'iw/4'
  
  [Parsed_scale_9 @ 0x2d32c60] Setting 'h' to value 'ih/4'
  
  [Parsed_scale_9 @ 0x2d32c60] w:iw/4 h:ih/4 flags:'bilinear' interl:0
  
  [Parsed_overlay_10 @ 0x2cb69a0] Setting 'x' to value '0*w'
  
  [Parsed_overlay_10 @ 0x2cb69a0] Setting 'y' to value '0*h'
  
  [Parsed_overlay_11 @ 0x2cb6420] Setting 'x' to value '1*w'
  
  [Parsed_overlay_11 @ 0x2cb6420] Setting 'y' to value '0*h'
  
  [Parsed_overlay_12 @ 0x2d2ee20] Setting 'x' to value '2*w'
  
  [Parsed_overlay_12 @ 0x2d2ee20] Setting 'y' to value '0*h'
  
  [Parsed_overlay_13 @ 0x2cb7220] Setting 'x' to value '0*w'
  
  [Parsed_overlay_13 @ 0x2cb7220] Setting 'y' to value '1*h'
  
  [Parsed_overlay_14 @ 0x2d322e0] Setting 'x' to value '1*w'
  
  [Parsed_overlay_14 @ 0x2d322e0] Setting 'y' to value '1*h'
  
  [Parsed_overlay_15 @ 0x2d2fba0] Setting 'x' to value '2*w'
  
  [Parsed_overlay_15 @ 0x2d2fba0] Setting 'y' to value '1*h'
  
  [Parsed_overlay_16 @ 0x2cb83a0] Setting 'x' to value '0*w'
  
  [Parsed_overlay_16 @ 0x2cb83a0] Setting 'y' to value '2*h'
  
  [Parsed_overlay_17 @ 0x2cb8480] Setting 'x' to value '1*w'
  
  [Parsed_overlay_17 @ 0x2cb8480] Setting 'y' to value '2*h'
  
  [Parsed_overlay_18 @ 0x2d30d80] Setting 'x' to value '2*w'
  
  [Parsed_overlay_18 @ 0x2d30d80] Setting 'y' to value '2*h'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 0:0 @ 0x2d36880] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 1:0 @ 0x2d2e780] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 2:0 @ 0x2cb4d40] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 3:0 @ 0x2d318e0] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 4:0 @ 0x2cb60c0] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 5:0 @ 0x2d2f9e0] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 6:0 @ 0x2d33380] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 6:0 @ 0x2d33380] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 6:0 @ 0x2d33380] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 6:0 @ 0x2d33380] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 6:0 @ 0x2d33380] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 6:0 @ 0x2d33380] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 6:0 @ 0x2d33380] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 7:0 @ 0x2cb55c0] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 8:0 @ 0x2d34ae0] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] Setting 'video_size' to value '640x360'
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] Setting 'time_base' to value '1/15360'
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] Setting 'frame_rate' to value '30/1'
  
  [graph 0 input from stream 0:0 @ 0x2d2f8e0] w:640 h:360 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
  
  [format @ 0x2d382c0] compat: called with args=[yuv420p|yuvj420p|yuv422p|yuv444p]
  
  [format @ 0x2d382c0] Setting 'pix_fmts' to value 'yuv420p|yuvj420p|yuv422p|yuv444p'
  
  Successfully opened the file.
  
  [AVFilterGraph @ 0x2cb0e80] query_formats: 31 queried, 30 merged, 0 already done, 0 delayed
  
  [Parsed_pad_0 @ 0x2cb42a0] w:640 h:360 -> w:640 h:360 x:0 y:0 color:0x000000FF
  
  [Parsed_scale_1 @ 0x2cb58a0] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_10 @ 0x2cb69a0] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_2 @ 0x2cb6a60] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_11 @ 0x2cb6420] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_3 @ 0x2cb7920] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_12 @ 0x2d2ee20] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_4 @ 0x2cb8580] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_13 @ 0x2cb7220] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_5 @ 0x2d2f0c0] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_14 @ 0x2d322e0] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_6 @ 0x2d302a0] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_15 @ 0x2d2fba0] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_7 @ 0x2d31060] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_16 @ 0x2cb83a0] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_8 @ 0x2d31d60] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_17 @ 0x2cb8480] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [Parsed_scale_9 @ 0x2d32c60] w:640 h:360 fmt:yuv420p sar:1/1 -> w:160 h:90 fmt:yuva420p sar:1/1 flags:0x2
  
  [Parsed_overlay_18 @ 0x2d30d80] main w:640 h:360 fmt:yuv420p overlay w:160 h:90 fmt:yuva420p
  
  [libx264 @ 0x2d38ae0] using mv_range_thread = 24
  
  [libx264 @ 0x2d38ae0] using SAR=1/1
  
  [libx264 @ 0x2d38ae0] using cpu capabilities: MMX2 SSE2Fast SSEMisalign LZCNT
  
  [libx264 @ 0x2d38ae0] profile High, level 3.0
  
  [libx264 @ 0x2d38ae0] 264 - core 132 r2310 76a5c3a - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=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
  
  [h264 @ 0x291aa80] detected 8 logical cores
  
  [h264 @ 0x2920340] detected 8 logical cores
  
  [h264 @ 0x2935f60] detected 8 logical cores
  
  [h264 @ 0x29b1040] detected 8 logical cores
  
  [h264 @ 0x29b3cc0] detected 8 logical cores
  
  Output #0, mp4, to './woohoo/10_video_out.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.4.101
  
      Stream #0:0, 0, 1/90000: Video: h264, yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1/30, q=-1--1, 90k tbn, 30 tbc
  
  Stream mapping:
  
    Stream #0:0 (h264) -> pad
  
    Stream #0:0 (h264) -> scale
  
    Stream #1:0 (h264) -> scale
  
    Stream #2:0 (h264) -> scale
  
    Stream #3:0 (h264) -> scale
  
    Stream #4:0 (h264) -> scale
  
    Stream #5:0 (h264) -> scale
  
    Stream #6:0 (h264) -> scale
  
    Stream #7:0 (h264) -> scale
  
    Stream #8:0 (h264) -> scale
  
    overlay -> Stream #0:0 (libx264)
  
  Error while opening decoder for input stream #4:0
  
  [AVIOContext @ 0x2d2fea0] Statistics: 0 seeks, 0 writeouts
  
  [AVIOContext @ 0x28dd8e0] Statistics: 71559 bytes read, 2 seeks
  
  [AVIOContext @ 0x291fae0] Statistics: 70647 bytes read, 2 seeks
  
  [AVIOContext @ 0x2931c40] Statistics: 71199 bytes read, 2 seeks
  
  [AVIOContext @ 0x2935e40] Statistics: 71399 bytes read, 2 seeks
  
  [AVIOContext @ 0x29b3480] Statistics: 71339 bytes read, 2 seeks
  
  [AVIOContext @ 0x2a2e180] Statistics: 69591 bytes read, 2 seeks
  
  [AVIOContext @ 0x2a317c0] Statistics: 71147 bytes read, 2 seeks
  
  [AVIOContext @ 0x2ab4de0] Statistics: 71363 bytes read, 2 seeks
  
  [AVIOContext @ 0x2c3ab00] Statistics: 71647 bytes read, 2 seeks

  The error line

  Error while opening decoder for input stream #4:0

  seems to be kind of random to me - at least the streams, ffmpeg fails on changes from time to time.