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  • Encoding for HLS using FFMPEG results in have a decreasing DTS

    29 décembre 2014, par Luuk D. Jansen

    I am trying to encode video for HTS live streaming, but am having problems with validating the stream using Apple Media Validator (mediastreamvalidator).
    (my test file : http://dominicansinteractive.idoms.org/media/9536/playlist.m3u8)

    The output is :

    --------------------------------------------------------------------------------
    http://dominicansinteractive.idoms.org/media/9536/199/prog_index.m3u8
    --------------------------------------------------------------------------------

    Playlist Validation:

       OK

    Segments:

    segment_00000.ts:

       ERROR: (-1) Decreasing DTS were detected in track 0
       ERROR: (-1) Decreasing DTS were detected in track 1

       Average segment duration: 8.07 seconds
       Average segment bitrate: 2155094.67 bps
       Average segment structural overhead: 206525.83 bps (9.58 %)

    The second segment doesn’t seem to have the problem :

    [mpegts @ 0x1d78120] Format mpegts probed with size=2048 and score=100
    [mpegts @ 0x1d78120] stream=0 stream_type=1b pid=100 prog_reg_desc=
    [mpegts @ 0x1d78120] stream=1 stream_type=f pid=101 prog_reg_desc=
    [mpegts @ 0x1d78120] File position before avformat_find_stream_info() is 0
    [h264 @ 0x1d7c1c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [h264 @ 0x1d7c1c0] no picture
    [h264 @ 0x1d7c1c0] Current profile doesn't provide more RBSP data in PPS, skipping
      Last message repeated 3 times
    [mpegts @ 0x1d78120] max_analyze_duration 5000000 reached at 5013333
    [mpegts @ 0x1d78120] File position after avformat_find_stream_info() is 0

    This seems to be a serious problem for HLS, so I am looking if there is a way to fix this.

    When looking with FFMPEG at the encoded file I get (encoder output/command at the bottom of the email) :

    ffmpeg -loglevel 99 -i encoded.ts
    ffmpeg version N-37783-gdf3a96c Copyright (c) 2000-2012 the FFmpeg developers
    built on Jul  4 2012 07:44:52 with gcc 4.4.5
    configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libvpx --enable-libfaac --enable-nonfree
    libavutil      51. 63.100 / 51. 63.100
    libavcodec     54. 32.100 / 54. 32.100
    libavformat    54. 14.100 / 54. 14.100
    libavdevice    54.  0.100 / 54.  0.100
    libavfilter     3.  0.101 /  3.  0.101
    libswscale      2.  1.100 /  2.  1.100
    libswresample   0. 15.100 /  0. 15.100
    libpostproc    52.  0.100 / 52.  0.100
    [mpegts @ 0x2023120] Format mpegts probed with size=2048 and score=100
    [mpegts @ 0x2023120] stream=0 stream_type=1b pid=100 prog_reg_desc=
    [mpegts @ 0x2023120] stream=1 stream_type=f pid=101 prog_reg_desc=
    [mpegts @ 0x2023120] File position before avformat_find_stream_info() is 0
    [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [h264 @ 0x20271c0] no picture
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 143280 in que
      Last message repeated 6 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 158640 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 175920 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 193200 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 210480 in que
      Last message repeated 7 times
    [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 227760 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 245040 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 262320 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 279600 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 296880 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 314160 in que
      Last message repeated 7 times
    [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 331440 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 348720 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 366000 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 383280 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 400560 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 417840 in que
      Last message repeated 6 times
    [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 433200 in que
      Last message repeated 6 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 448560 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 465840 in que
      Last message repeated 6 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 481200 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 498480 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 515760 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 533040 in que
      Last message repeated 6 times
    [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [mpegts @ 0x2023120] first_dts 124080 not matching first dts 548400 in que
      Last message repeated 7 times
    [mpegts @ 0x2023120] max_analyze_duration 5000000 reached at 5000000
    [mpegts @ 0x2023120] File position after avformat_find_stream_info() is 0

    And when at the first segmented file:
    ffmpeg -loglevel 99 -i segment_00000.ts
    ffmpeg version N-37783-gdf3a96c Copyright (c) 2000-2012 the FFmpeg developers
    built on Jul  4 2012 07:44:52 with gcc 4.4.5
    configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libvpx --enable-libfaac --enable-nonfree
    libavutil      51. 63.100 / 51. 63.100
    libavcodec     54. 32.100 / 54. 32.100
    libavformat    54. 14.100 / 54. 14.100
    libavdevice    54.  0.100 / 54.  0.100
    libavfilter     3.  0.101 /  3.  0.101
    libswscale      2.  1.100 /  2.  1.100
    libswresample   0. 15.100 /  0. 15.100
    libpostproc    52.  0.100 / 52.  0.100
    [mpegts @ 0x1a0b120] Format mpegts probed with size=2048 and score=100
    [mpegts @ 0x1a0b120] stream=0 stream_type=1b pid=100 prog_reg_desc=
    [mpegts @ 0x1a0b120] stream=1 stream_type=f pid=101 prog_reg_desc=
    [mpegts @ 0x1a0b120] File position before avformat_find_stream_info() is 0
    [mpegts @ 0x1a0b120] Invalid timestamps stream=0, pts=1920, dts=8589929312, size=2355
    [mpegts @ 0x1a0b120] Invalid timestamps stream=0, pts=16320, dts=8589932912, size=3203
    [h264 @ 0x1a0f1c0] Current profile doesn't provide more RBSP data in PPS, skipping
    [h264 @ 0x1a0f1c0] no picture
    [h264 @ 0x1a0f1c0] Current profile doesn't provide more RBSP data in PPS, skipping
      Last message repeated 3 times
    [mpegts @ 0x1a0b120] max_analyze_duration 5000000 reached at 5013333
    [mpegts @ 0x1a0b120] File position after avformat_find_stream_info() is 0

    This problem does not occur with the BASELINE profile, but does with MAIN.

    The command I use for encoding is :

    ffmpeg, -i, [path]/test.mov, -y, -f, mpegts, -acodec, aac, -strict, -2, -ar, 48000, -b:a, 128000, -s, 960x540, -vcodec, libx264, -b:v, 1200000, -aspect, 960:540, -r, 25, -level, 3.1, -vprofile, main, -flags, +loop, -cmp, +chroma, -partitions, +parti4x4+partp8x8+partb8x8, -subq, 5, -trellis, 1, -refs, 1, -coder, 0, -me_range, 16, -keyint_min, 25, -sc_threshold, 40, -i_qfactor, 0.71, -bt, 200k, -maxrate, 1200000, -bufsize, 1200000, -rc_eq, 'blurCplx^(1-qComp)', -qcomp, 0.6, -qmin, 10, -qmax, 51, -qdiff, 4, -level, 30, -g, 30, -async, 2, [path]/encoded.ts

    08:40:29,843 DEBUG ~ FFMPEG(1):   libavutil      51. 63.100 / 51. 63.100
    08:40:29,843 DEBUG ~ FFMPEG(1):   libavcodec     54. 32.100 / 54. 32.100
    08:40:29,843 DEBUG ~ FFMPEG(1):   libavformat    54. 14.100 / 54. 14.100
    08:40:29,843 DEBUG ~ FFMPEG(1):   libavdevice    54.  0.100 / 54.  0.100
    08:40:29,843 DEBUG ~ FFMPEG(1):   libavfilter     3.  0.101 /  3.  0.101
    08:40:29,844 DEBUG ~ FFMPEG(1):   libswscale      2.  1.100 /  2.  1.100
    08:40:29,844 DEBUG ~ FFMPEG(1):   libswresample   0. 15.100 /  0. 15.100
    08:40:29,844 DEBUG ~ FFMPEG(1):   libpostproc    52.  0.100 / 52.  0.100
    08:40:30,033 DEBUG ~ FFMPEG(1): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '[path]/test.mov':
    08:40:30,033 DEBUG ~ FFMPEG(1):   Metadata:
    08:40:30,033 DEBUG ~ FFMPEG(1):     major_brand     : qt  
    08:40:30,033 DEBUG ~ FFMPEG(1):     minor_version   : 537199360
    08:40:30,035 DEBUG ~ FFMPEG(1):     compatible_brands: qt  
    08:40:30,035 DEBUG ~ FFMPEG(1):     creation_time   : 2011-12-05 10:54:24
    08:40:30,036 DEBUG ~ FFMPEG(1):     timecode        : 00:00:00:00
    08:40:30,036 DEBUG ~ FFMPEG(1):   Duration: 00:00:24.20, start: 0.000000, bitrate: 9912 kb/s
    08:40:30,037 DEBUG ~ FFMPEG(1):     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 9777 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    08:40:30,037 DEBUG ~ FFMPEG(1):     Metadata:
    08:40:30,037 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
    08:40:30,037 DEBUG ~ FFMPEG(1):       handler_name    : Apple Video Media Handler
    08:40:30,038 DEBUG ~ FFMPEG(1):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 129 kb/s
    08:40:30,038 DEBUG ~ FFMPEG(1):     Metadata:
    08:40:30,038 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
    08:40:30,038 DEBUG ~ FFMPEG(1):       handler_name    : Apple Sound Media Handler
    08:40:30,038 DEBUG ~ FFMPEG(1):     Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
    08:40:30,038 DEBUG ~ FFMPEG(1):     Metadata:
    08:40:30,038 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
    08:40:30,039 DEBUG ~ FFMPEG(1):       handler_name    : Time Code Media Handler
    08:40:30,039 DEBUG ~ FFMPEG(1):       timecode        : 00:00:00:00
    08:40:30,092 DEBUG ~ FFMPEG(1): [graph 0 input from stream 0:0 @ 0x1c17180] w:1920 h:1080 pixfmt:yuv420p tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
    08:40:30,092 DEBUG ~ FFMPEG(1): [output stream 0:0 @ 0x1c033a0] No opaque field provided
    08:40:30,110 DEBUG ~ FFMPEG(1): [scaler for output stream 0:0 @ 0x1c18040] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:960 h:540 fmt:yuv420p sar:0/1 flags:0x4
    08:40:30,110 DEBUG ~ FFMPEG(1): [graph 1 input from stream 0:1 @ 0x1c53440] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3
    08:40:30,110 DEBUG ~ FFMPEG(1): -async is forwarded to lavfi similarly to -af aresample=min_comp=0.001:min_hard_comp=0.100000:max_soft_comp=0.000042.
    08:40:30,122 DEBUG ~ FFMPEG(1): [graph 1 aresample for input stream 0:1 @ 0x1c36880] chl:stereo fmt:s16 r:48000Hz -> chl:stereo fmt:flt r:48000Hz
    08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] using SAR=1/1
    08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame MB size (60x34) > level limit (1620)
    08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] DPB size (4 frames, 3133440 bytes) > level limit (3 frames, 3110400 bytes)
    08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] MB rate (51000) > level limit (40500)
    08:40:30,170 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] using cpu capabilities: MMX2 SSE2Slow SlowCTZ
    08:40:30,182 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] profile Main, level 3.0
    08:40:30,235 DEBUG ~ FFMPEG(1): [mpegts @ 0x1be3540] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
    08:40:30,235 DEBUG ~ FFMPEG(1): Output #0, mpegts, to '[path]/encoded.ts':
    08:40:30,235 DEBUG ~ FFMPEG(1):   Metadata:
    08:40:30,235 DEBUG ~ FFMPEG(1):     major_brand     : qt  
    08:40:30,235 DEBUG ~ FFMPEG(1):     minor_version   : 537199360
    08:40:30,235 DEBUG ~ FFMPEG(1):     compatible_brands: qt  
    08:40:30,235 DEBUG ~ FFMPEG(1):     timecode        : 00:00:00:00
    08:40:30,235 DEBUG ~ FFMPEG(1):     encoder         : Lavf54.14.100
    08:40:30,235 DEBUG ~ FFMPEG(1):     Stream #0:0(eng): Video: h264, yuv420p, 960x540 [SAR 1:1 DAR 16:9], q=10-51, 1200 kb/s, 90k tbn, 25 tbc
    08:40:30,235 DEBUG ~ FFMPEG(1):     Metadata:
    08:40:30,235 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
    08:40:30,235 DEBUG ~ FFMPEG(1):       handler_name    : Apple Video Media Handler
    08:40:30,236 DEBUG ~ FFMPEG(1):     Stream #0:1(eng): Audio: aac, 48000 Hz, stereo, flt, 128 kb/s
    08:40:30,236 DEBUG ~ FFMPEG(1):     Metadata:
    08:40:30,236 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
    08:40:30,236 DEBUG ~ FFMPEG(1):       handler_name    : Apple Sound Media Handler
    08:40:30,236 DEBUG ~ FFMPEG(1): Stream mapping:
    08:40:30,236 DEBUG ~ FFMPEG(1):   Stream #0:0 -> #0:0 (h264 -> libx264)
    08:40:30,236 DEBUG ~ FFMPEG(1):   Stream #0:1 -> #0:1 (aac -> aac)

    [...]

    08:40:55,398 DEBUG ~ FFMPEG(1): video:3121kB audio:359kB subtitle:0 global headers:0kB muxing overhead 11.132085%
    08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame I:21    Avg QP:21.57  size: 88153
    08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame P:233   Avg QP:22.74  size:  5560
    08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame B:351   Avg QP:27.45  size:   141
    08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] consecutive B-frames: 21.7%  2.0%  3.0% 73.4%
    08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb I  I16..4: 54.5%  0.0% 45.5%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb P  I16..4:  4.7%  0.0%  1.3%  P16..4: 24.6%  3.5%  0.8%  0.0%  0.0%    skip:65.1%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb B  I16..4:  0.1%  0.0%  0.1%  B16..8:  0.5%  0.1%  0.0%  direct: 0.6%  skip:98.6%  L0:32.3% L1:47.1% BI:20.6%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] coded y,uvDC,uvAC intra: 59.4% 5.8% 0.4% inter: 5.4% 3.0% 0.0%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i16 v,h,dc,p: 58% 16% 21%  4%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 21% 17%  5% 10%  7%  5%  5% 10%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i8c dc,h,v,p: 94%  3%  3%  0%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] Weighted P-Frames: Y:13.7% UV:3.4%
    08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] kb/s:1056.61

    For segmenting is :

    ffmpeg, -i,[path]encoded.ts, -y, -c, copy, -flags, global_header, -map, 0, -f, segment, -segment_time, 10, -segment_list, [path]/fileList.txt, -segment_format, mpegts, [path]/segment_%05d.ts]

    Any help would really be appreciated !

  • Program hangs while using ffprobe on file with teletext subtitles

    6 août 2012, par Jon

    Having a problem running ffprobe on an MKV file that contains teletext subtitles. Code is in a C# library and works fine for other MKV files.

    Running the latest :

    ffprobe -v

    ffprobe version N-42347-g299387e Copyright (c) 2007-2012 the FFmpeg developers
     built on Jul  8 2012 15:44:54 with gcc 4.7.1

    Code :

    string args = string.Format("-show_format -show_streams \"{0}\"", FileName);

    Process p = new Process();
    p.StartInfo = new ProcessStartInfo(FFPROBE_PATH);
    p.StartInfo.Arguments = args;
    p.StartInfo.CreateNoWindow = true;
    p.StartInfo.RedirectStandardOutput = true;
    p.StartInfo.RedirectStandardError = true;
    p.StartInfo.UseShellExecute = false;
    p.StartInfo.WorkingDirectory = System.IO.Directory.GetCurrentDirectory();
    p.Start();

    while (!p.HasExited)
    {
       System.Threading.Thread.Sleep(100);
    }

    string output = p.StandardOutput.ReadToEnd().Replace("\r\n", "\n");

    The filename has a UNC path - tried using the FileName parameter but got an error, hence passing the filename via the arguments.

    If I run the following commandline :

    ffprobe -show_format -show_streams "\192.168.10.1\content\Breakfast At Tiffany's sample preview.mkv"

    I get the following output (note the errors - "Unsupported codec with id ...") :

    ffprobe -show_format -show_streams "\\192.168.10.1\content\Breakfast At Tiffany's sample preview.mkv"

    ffprobe version N-42347-g299387e Copyright (c) 2007-2012 the FFmpeg developers
     built on Jul  8 2012 15:44:54 with gcc 4.7.1
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-fr
    ei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-li
    bmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutv
    ideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --e
    nable-zlib
     libavutil      51. 64.100 / 51. 64.100
     libavcodec     54. 33.100 / 54. 33.100
     libavformat    54. 15.102 / 54. 15.102
     libavdevice    54.  1.100 / 54.  1.100
     libavfilter     3.  1.100 /  3.  1.100
     libswscale      2.  1.100 /  2.  1.100
     libswresample   0. 15.100 /  0. 15.100
     libpostproc    52.  0.100 / 52.  0.100
    Input #0, matroska,webm, from 'c:\dev\content\Breakfast At Tiffany's sample preview.mkv':
     Metadata:
       creation_time   : 2011-12-14 21:27:01
     Duration: 00:01:02.77, start: 0.000000, bitrate: 4071 kb/s
       Stream #0:0: Video: h264 (High), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
       Metadata:
         title           : x264   1920x1080   Bitrate=4776 kbps   AvQuant=21.406   Rip by ShivaShanti
       Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), s16, 448 kb/s (default)
       Metadata:
         title           : English Ac3 5.1 chnls 448 kbps
       Stream #0:2(ita): Audio: ac3, 48000 Hz, stereo, s16, 224 kb/s
       Metadata:
         title           : Italian Ac3 2.0 chnls 224  kbps
       Stream #0:3(eng): Subtitle: text (default)
       Metadata:
         title           : english
       Stream #0:4(ita): Subtitle: text
       Metadata:
         title           : italian
       Stream #0:5(dan): Subtitle: text
       Metadata:
         title           : danish
       Stream #0:6(dut): Subtitle: text
       Metadata:
         title           : dutch
       Stream #0:7(fin): Subtitle: text
       Metadata:
         title           : finnish
       Stream #0:8(fre): Subtitle: text
       Metadata:
         title           : french
       Stream #0:9(ger): Subtitle: text
       Metadata:
         title           : german
       Stream #0:10(nor): Subtitle: text
       Metadata:
         title           : norwegian
       Stream #0:11(spa): Subtitle: text
       Metadata:
         title           : spanish
       Stream #0:12(swe): Subtitle: text
       Metadata:
         title           : swedish
       Stream #0:13(eng): Subtitle: text
       Metadata:
         title           : english hearig impaired
    Unsupported codec with id 94210 for input stream 3
    Unsupported codec with id 94210 for input stream 4
    Unsupported codec with id 94210 for input stream 5
    Unsupported codec with id 94210 for input stream 6
    Unsupported codec with id 94210 for input stream 7
    Unsupported codec with id 94210 for input stream 8
    Unsupported codec with id 94210 for input stream 9
    Unsupported codec with id 94210 for input stream 10
    Unsupported codec with id 94210 for input stream 11
    Unsupported codec with id 94210 for input stream 12
    Unsupported codec with id 94210 for input stream 13
    [STREAM]
    index=0
    codec_name=h264
    codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
    profile=High
    codec_type=video
    codec_time_base=1001/48000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    width=1920
    height=1080
    has_b_frames=2
    sample_aspect_ratio=1:1
    display_aspect_ratio=16:9
    pix_fmt=yuv420p
    level=41
    timecode=N/A
    is_avc=1
    nal_length_size=4
    id=N/A
    r_frame_rate=24000/1001
    avg_frame_rate=24000/1001
    time_base=1/1000
    start_time=0.000000
    duration=N/A
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    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:title=x264   1920x1080   Bitrate=4776 kbps   AvQuant=21.406   Rip by ShivaShanti
    [/STREAM]
    [STREAM]
    index=1
    codec_name=ac3
    codec_long_name=ATSC A/52A (AC-3)
    profile=unknown
    codec_type=audio
    codec_time_base=1/48000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    sample_fmt=s16
    sample_rate=48000
    channels=6
    bits_per_sample=0
    dmix_mode=-1
    ltrt_cmixlev=-1.000000
    ltrt_surmixlev=-1.000000
    loro_cmixlev=-1.000000
    loro_surmixlev=-1.000000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=448000
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=eng
    TAG:title=English Ac3 5.1 chnls 448 kbps
    [/STREAM]
    [STREAM]
    index=2
    codec_name=ac3
    codec_long_name=ATSC A/52A (AC-3)
    profile=unknown
    codec_type=audio
    codec_time_base=1/48000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    sample_fmt=s16
    sample_rate=48000
    channels=2
    bits_per_sample=0
    dmix_mode=-1
    ltrt_cmixlev=-1.000000
    ltrt_surmixlev=-1.000000
    loro_cmixlev=-1.000000
    loro_surmixlev=-1.000000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=224000
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=ita
    TAG:title=Italian Ac3 2.0 chnls 224  kbps
    [/STREAM]
    [STREAM]
    index=3
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=eng
    TAG:title=english
    [/STREAM]
    [STREAM]
    index=4
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=ita
    TAG:title=italian
    [/STREAM]
    [STREAM]
    index=5
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=dan
    TAG:title=danish
    [/STREAM]
    [STREAM]
    index=6
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=dut
    TAG:title=dutch
    [/STREAM]
    [STREAM]
    index=7
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=fin
    TAG:title=finnish
    [/STREAM]
    [STREAM]
    index=8
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=fre
    TAG:title=french
    [/STREAM]
    [STREAM]
    index=9
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=ger
    TAG:title=german
    [/STREAM]
    [STREAM]
    index=10
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=nor
    TAG:title=norwegian
    [/STREAM]
    [STREAM]
    index=11
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=spa
    TAG:title=spanish
    [/STREAM]
    [STREAM]
    index=12
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=swe
    TAG:title=swedish
    [/STREAM]
    [STREAM]
    index=13
    codec_name=unknown
    codec_long_name=unknown
    profile=unknown
    codec_type=subtitle
    codec_time_base=1/1000
    codec_tag_string=[0][0][0][0]
    codec_tag=0x0000
    id=N/A
    r_frame_rate=0/0
    avg_frame_rate=0/0
    time_base=1/1000
    start_time=0.000000
    duration=N/A
    bit_rate=N/A
    nb_frames=N/A
    nb_read_frames=N/A
    nb_read_packets=N/A
    TAG:language=eng
    TAG:title=english hearig impaired
    [/STREAM]
    [FORMAT]
    filename=c:\dev\content\Breakfast At Tiffany's sample preview.mkv
    nb_streams=14
    format_name=matroska,webm
    format_long_name=Matroska/WebM file format
    start_time=0.000000
    duration=62.776000
    size=31947628
    bit_rate=4071317
    TAG:creation_time=2011-12-14 21:27:01
    [/FORMAT]

    My problem is, the process appears to hang. I took out the 'CreateNoWindow' option and, of course, I get a big blank window onscreen that normally just flashs by on a normal file. With the teletext subtitle file however, it persists. If I manually close it, the program continues and I seem to get the output I want.

    So my question is, how can I debug this further, to find out why this is hanging and how to handle the error (or simply ignore it) and continue ?

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