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  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
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Sur d’autres sites (6560)

  • transcoding from amr to flac using JAVE(ffmpeg)

    25 avril 2012, par user824440

    I want to transcode amr audio files to flac using JAVE (http://www.sauronsoftware.it/projects/jave/). it uses ffmpeg to do the job.

    The transcoding procedure runs successfully on Windows but fails on Linux (centOS).

    I checked the JAVE code and found it uses the following command :

    ffmpeg -i 1.amr -vn -acodec flac -ac 1 -ar 8000 -f flac -y 1.flac

    the output is :

    FFmpeg version SVN-r11179, Copyright (c) 2000-2007 Fabrice Bellard, et al.
    
  configuration: --enable-gpl --enable-pp --enable-swscaler --enable-pthreads --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-memalign-hack --extra-ldflags=-static -lm -lz
    

    
libavutil version: 49.5.0
    

    
libavcodec version: 51.48.0
    

    
libavformat version: 52.1.0
    

    
built on Dec  7 2007 15:35:14, gcc: 4.1.2 20070626 (Red Hat 4.1.2-14)
    

    
Input #0, amr, from '1.amr':
    

    
Duration: N/A, bitrate: N/A
    

    
Stream #0.0: Audio: samr / 0x726D6173, 8000 Hz, mono
    

    
Input #1, amr, from '1.amr':
    

    
Duration: N/A, bitrate: N/A
    

    
Stream #1.0: Audio: samr / 0x726D6173, 8000 Hz, mono
    

    
Output #0, flac, to '1.flacffmpeg':
    

    
Stream #0.0: Audio: flac, 8000 Hz, mono, 64 kb/s
    

    
Output #1, flac, to '1.flac':
    

    
Stream #1.0: Audio: flac, 8000 Hz, mono, 64 kb/s
    

    
Stream mapping:
    

    
Stream #0.0 -> #0.0
    

    
Stream #1.0 -> #1.0
    

    
Unsupported codec (id=73728) for input stream #0.0

    So the problem might be unsuppported codec ? How to solve this ?
    Thanks.

  • FFmpeg : Read profile level information from mp4

    31 mars 2016, par Martin

    I have a mp4 file and need the profile level of it. FFmpeg says, it has baseline profile, which is what I need, but I need also the level.

    Here is what I get from FFmpeg :

    ffmpeg version 0.8, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Jul 20 2011 13:32:19 with gcc 4.4.3
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264
    
  libavutil    51.  9. 1 / 51.  9. 1
    
  libavcodec   53.  7. 0 / 53.  7. 0
    
  libavformat  53.  4. 0 / 53.  4. 0
    
  libavdevice  53.  1. 1 / 53.  1. 1
    
  libavfilter   2. 23. 0 /  2. 23. 0
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test-show.mp4':
    
  Metadata:
    
    major_brand     : f4v 
    
    minor_version   : 0
    
    compatible_brands: isommp42m4v 
    
    creation_time   : 2012-03-21 16:00:00
    
  Duration: 00:56:07.40, start: 0.000000, bitrate: 2004 kb/s
    
    Stream #0.0(eng): Video: h264 (Baseline), yuv420p, 854x480 [PAR 1:1 DAR 427:240], 1904 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Metadata:
    
      creation_time   : 2012-03-21 16:00:00
    
    Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 96 kb/s
    
    Metadata:
    
      creation_time   : 2012-03-21 16:00:00
    
At least one output file must be specified

    Is there any option other than -i I can use to get the level information ?

  • FFmpeg : Green images from TS file

    5 septembre 2017, par Tatsiana

    I use ffmpeg to generate images from a TS file and at some places it generates green images. I checked a couple of ffmpeg versions. The issue reproduces on
    3.3.3, 2.8.11, 2.7.7, but doesn’t on 2.6.9.
    What might be the reason ?

    For example, the output of 2.8.11 :

        $ ffmpeg -ss 00:42:20 -i video.ts -frames:v 1 out_42_20.jpg -loglevel debug
    ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
      built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1 16.04.4) 20160609
      configuration : —prefix=/usr —extra-version=0ubuntu0.16.04.1 —build-suffix=-ffmpeg —toolchain=hardened —libdir=/usr/lib/x86_64-linux-=/usr/include/x86_64-linux-gnu —cc=cc —cxx=g++ —enable-gpl —enable-shared —disable-stripping —disable-decoder=libopenjpeg —disable-dhroedinger —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enab-enable-libcdio —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable—enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —enable-libshine —enpy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-linable-libwebp —enable-libx265 —enable-libxvid —enable-libzvbi —enable-openal —enable-opengl —enable-x11grab —enable-libdc1394 —enab83 —enable-libzmq —enable-frei0r —enable-libx264 —enable-libopencv
      libavutil      54. 31.100 / 54. 31.100
      libavcodec     56. 60.100 / 56. 60.100
      libavformat    56. 40.101 / 56. 40.101
      libavdevice    56.  4.100 / 56.  4.100
      libavfilter     5. 40.101 /  5. 40.101
      libavresample   2.  1.  0 /  2.  1.  0
      libswscale      3.  1.101 /  3.  1.101
      libswresample   1.  2.101 /  1.  2.101
      libpostproc    53.  3.100 / 53.  3.100
    Splitting the commandline.
    Reading option ’-ss’ ... matched as option ’ss’ (set the start time offset) with argument ’00:42:20’.
    Reading option ’-i’ ... matched as input url with argument ’video.ts’.
    Reading option ’-frames:v’ ... matched as option ’frames’ (set the number of frames to output) with argument ’1’.
    Reading option ’out_42_20.jpg’ ... matched as output url.
    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 url video.ts.
    Applying option ss (set the start time offset) with argument 00:42:20.
    Successfully parsed a group of options.
    Opening an input file : video.ts.
    [mpegts @ 0x22ba400] Format mpegts probed with size=2048 and score=100
    [mpegts @ 0x22ba400] stream=0 stream_type=1b pid=1e1 prog_reg_desc=
    [mpegts @ 0x22ba400] stream=1 stream_type=f pid=1e2 prog_reg_desc=
    [mpegts @ 0x22ba400] stream=2 stream_type=6 pid=1e3 prog_reg_desc=
    [mpegts @ 0x22ba400] Before avformat_find_stream_info() pos : 0 bytes read:32768 seeks:0
    [h264 @ 0x22be840] no picture
    [mpegts @ 0x22ba400] max_analyze_duration 5000000 reached at 5000000 microseconds st:0
    [mpegts @ 0x22ba400] stream 0 : no PTS found at end of file, duration not set
    [mpegts @ 0x22ba400] After avformat_find_stream_info() pos : 0 bytes read:4026800 seeks:3 frames:550
    Input #0, mpegts, from ’video.ts’ :
      Duration : 02:15:27.97, start : 1.079989, bitrate : 4983 kb/s
      Program 1
        Stream #0:0[0x1e1], 216, 1/90000 : Video : h264 (High), 4 reference frames ([27][0][0][0] / 0x001B), yuv420p(left), 1920x1080 (1920x1088)R 16:9], 1/50, 25 fps, 50 tbr, 90k tbn, 50 tbc
        Stream #0:1[0x1e2](und), 203, 1/90000 : Audio : aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 127 kb/s
        Stream #0:2[0x1e3](und), 131, 1/90000 : Audio : ac3 ([6][0][0][0] / 0x0006), 48000 Hz, 5.1(side), fltp, 384 kb/s
    Successfully opened the file.
    Parsing a group of options : output url out_42_20.jpg.
    Applying option frames:v (set the number of frames to output) with argument 1.
    Successfully parsed a group of options.
    Opening an output file : out_42_20.jpg.
    Successfully opened the file.
    detected 1 logical cores
    [graph 0 input from stream 0:0 @ 0x22ba280] Setting ’video_size’ to value ’1920x1080’
    [graph 0 input from stream 0:0 @ 0x22ba280] Setting ’pix_fmt’ to value ’0’
    [graph 0 input from stream 0:0 @ 0x22ba280] Setting ’time_base’ to value ’1/90000’
    [graph 0 input from stream 0:0 @ 0x22ba280] Setting ’pixel_aspect’ to value ’1/1’
    [graph 0 input from stream 0:0 @ 0x22ba280] Setting ’sws_param’ to value ’flags=2’
    [graph 0 input from stream 0:0 @ 0x22ba280] Setting ’frame_rate’ to value ’25/1’
    [graph 0 input from stream 0:0 @ 0x22ba280] w:1920 h:1080 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:1/1 sws_param:flags=2
    [format @ 0x2328360] compat : called with args=[yuvj420p|yuvj422p|yuvj444p]
    [format @ 0x2328360] Setting ’pix_fmts’ to value ’yuvj420p|yuvj422p|yuvj444p’
    [auto-inserted scaler 0 @ 0x2326600] Setting ’flags’ to value ’bicubic’
    [auto-inserted scaler 0 @ 0x2326600] w:iw h:ih flags :’bicubic’ interl:0
    [format @ 0x2328360] auto-inserting filter ’auto-inserted scaler 0’ between the filter ’Parsed_null_0’ and the filter ’format’
    [AVFilterGraph @ 0x2327ba0] query_formats : 5 queried, 3 merged, 1 already done, 0 delayed
    [auto-inserted scaler 0 @ 0x2326600] picking yuvj420p out of 3 ref:yuv420p alpha:0
    [swscaler @ 0x2310660] deprecated pixel format used, make sure you did set range correctly
    [auto-inserted scaler 0 @ 0x2326600] w:1920 h:1080 fmt:yuv420p sar:1/1 -> w:1920 h:1080 fmt:yuvj420p sar:1/1 flags:0x4
    [mjpeg @ 0x2327620] Forcing thread count to 1 for MJPEG encoding, use -thread_type slice or a constant quantizer if you want to use multipl
    [mjpeg @ 0x2327620] intra_quant_bias = 96 inter_quant_bias = 0
    Output #0, image2, to ’out_42_20.jpg’ :
      Metadata :
        encoder : Lavf56.40.101
        Stream #0:0, 0, 1/25 : Video : mjpeg, 1 reference frame, yuvj420p(pc, left), 1920x1080 [SAR 1:1 DAR 16:9], 1/25, q=2-31, 200 kb/s, 25 fps tbc
        Metadata :
          encoder : Lavc56.60.100 mjpeg
    Stream mapping :
      Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    Press [q] to stop, [?] for help
    [h264 @ 0x232a040] Missing reference picture, default is 0
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 0
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 0
    [h264 @ 0x232a040] decode_slice_header error
    timestamp discontinuity 0, new offset= -2541079989
    [h264 @ 0x232a040] no picture
    [h264 @ 0x232a040] illegal short term buffer state detected
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] Missing reference picture, default is 65537
    [h264 @ 0x232a040] decode_slice_header error
    [h264 @ 0x232a040] no picture
    *** 0 dup !
    [AVIOContext @ 0x2448c00] Statistics : 0 seeks, 2 writeouts
    No more output streams to write to, finishing.
    frame=    1 fps=0.0 q=2.2 Lsize=N/A time=00:00:00.04 bitrate=N/A dup=1 drop=1
    video:32kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : unknown
    Input file #0 (video.ts) :
      Input stream #0:0 (video) : 9 packets read (261340 bytes) ; 3 frames decoded ;
      Input stream #0:1 (audio) : 0 packets read (0 bytes) ;
      Input stream #0:2 (audio) : 0 packets read (0 bytes) ;
      Total : 9 packets (261340 bytes) demuxed
    Output file #0 (out_42_20.jpg) :
      Output stream #0:0 (video) : 1 frames encoded ; 1 packets muxed (33209 bytes) ;
      Total : 1 packets (33209 bytes) muxed
    3 frames successfully decoded, 0 decoding errors
    [AVIOContext @ 0x22c2e40] Statistics : 8798032 bytes read, 36 seeks

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