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  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

Sur d’autres sites (4635)

  • Spring Boot serving an m3u8 playlist

    13 octobre 2023, par Ph33ly

    I'm trying to serve an m3u8 playlist through Spring Boot. I have a running ffmpeg process that is transcoding a multicast in real-time and sending the files to /src/resources/public/output.m3u8. I see the playlist updating and the new .ts files being generated correctly however when trying to watch the stream in a video player, it only plays a certain amount of video. Is there a way to properly serve up a running playlist in Java instead of serving it statically ?

    



    EDIT : When starting a basic http server with python python3 -m http.server, I'm able to view the stream perfectly fine. Is there a Spring Boot way to accomplish the same task ?

    


  • Appending a list of movies MP4s causes the sound to be dropped or garbled at some point

    9 février 2020, par Marie

    Update I am able to reproduce the issue by concatenating 10 Hello.mp4 clips and see the audio drop out/garbled at about 5 seconds playback. This is via VLC latest 3.0.8 on Windows7 64bit. Window Player zero sound. Media Player Classic it plays fine all 10 audio or the word "Hello". The same movie when dragged onto Whatsapp the PC app plays OK but no sound if played from the Phone Whatsapp. Perhaps its my computer too slow in the production of this clip ??? I don’t know what to trust anymore.

    I copied the same ffmpeg.exe onto my kid’s Windows10 laptop and was able to produce the same behavior with sound dropping out with VLC however Windows10 media player is able to play the audio without a glitch.

    You can reproduce the same on your end with this batch file

    _HELLO_MP4s.CMD

    rem 2:07 AM 2/8/2020
    
rem 
    
rem  
    
SET EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"
    

    
SET ROOTPATH=.\
    

    
SET OUT_FILE="%ROOTPATH%HELLOs.MP4"
    

    
SET IN_FILES_LIST="%ROOTPATH%IN_FILES_LIST.TXT"
    
ECHO file '%ROOTPATH%HELLO.mp4' > %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    
ECHO file '%ROOTPATH%HELLO.mp4' >> %IN_FILES_LIST% 
    

    
SET OPTIONS= -f concat -safe 0 -i  %IN_FILES_LIST%  -c copy -y  %OUT_FILE%
    

    
SET INFO_FILE="INFO.TXT"
    

    
%EXE% %OPTIONS%  1> %INFO_FILE% 2>&1 
    

    
ECHO ======================== >> %INFO_FILE% 
    
ECHO OUT_FILE=%OUT_FILE%  >> %INFO_FILE% 
    
ECHO EXE=%EXE%  >> %INFO_FILE%
    
ECHO OPTIONS=%OPTIONS%  >> %INFO_FILE% 
    
ECHO ======================== >> %INFO_FILE%

    Original Post
    My process is in 3 steps
    Step 1) Corresponding to each bitmap I have 00.JPG ... NN.JPG I combine a list of "SOURCE" mp3 audio into a single audio mp3 to produce matching 00.MP3 ... NN.MP3

    I had glitch here where one my mp3 was not of the correct Sample Rate, however a kind soul in this forum helped me fix that.
    You can read the details here :

    When I append a silent audio (mp3) to an existing list of audio it garbles the final audio ?

    Step 2) combine each mp3 from previous with a the filename matching bitmap to produce a movie .MP4

    IOW,

    • 00.JPG + 00.MP3 >> 00.MP4
    • 01.JPG + 01.MP3 >> 01.MP4
    • and so on

    From this run of 24 subparts, I hand tested some of these movies against Whatsapp and they are accepted fine.
    However, the final MOVIE.MP4 is not.
    I will list below their info from ffprobe.

    Step 3) combine the list of movies from previous into a final MOVIE.MP4
    This is where I have been having random issues typically with audio, currently this audio drops at about 20s from start. Corresponding to roughly movies parts 04.mp4 to 07.mp4

    I play the videos via VLC but Windows Media Player has even worse playback.

    I am able to reproduce Step3 and thus MOVIE.MP4 with following batch file

    rem 10:33 PM 2/6/2020
    
SET EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"
    

    
SET ROOTPATH=.\
    

    
SET OUT_FILE="%ROOTPATH%MOVIE.MP4"
    

    
SET IN_FILES_LIST="%ROOTPATH%IN_FILES_LIST.TXT"
    

    
SET OPTIONS= -f concat -safe 0 -i  %IN_FILES_LIST%  -c copy -y  %OUT_FILE%
    

    
SET INFO_FILE="INFO.TXT"
    

    
%EXE% %OPTIONS%  1> %INFO_FILE% 2>&1 
    

    
rem PAUSE

    The content of IN_FILES_LIST.TXT

    file '00.mp4'
    
file '01.mp4'
    
file '02.mp4'
    
...
    
file '23.mp4'
    
file '24.mp4'

    (Step 2) uses the following :)
    enter image description here

    The following is ffprobe on the source audio MP3s (Step 1)

    MP3s_ORIGINAL.TXT
    
========================BEGIN 
    
[mp3 @ 0000000000513100] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\00.mp3':
    
  Duration: 00:00:03.36, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 00000000003f3180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\01.mp3':
    
  Duration: 00:00:00.46, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 00000000004a3180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\02.mp3':
    
  Duration: 00:00:00.58, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000623180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\03.mp3':
    
  Duration: 00:00:00.84, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 00000000003a3180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\04.mp3':
    
  Duration: 00:00:00.86, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000433180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\05.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000683180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\06.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 00000000004d3180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\07.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 00000000004c3180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\08.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000573180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\09.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000583180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\10.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 00000000005e3180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\11.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000553180] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '.\PLAY\12.mp3':
    
  Duration: 00:00:00.98, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
[mp3 @ 0000000000563180] Estimating duration from bitrate, this may be inaccurate
    

    

    
trimmed because SO limits post to 30000 chars

    The following is ffprobe on the MP3s concatenated with 2second Silence. All their Sample Rate 24K and Bit Rate 32k seems OK ?? (Also Step 1)

    MP3s_withSilenceAppended.TXT
    
========================BEGIN 
    
Input #0, mp3, from '00.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:05.42, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '01.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.52, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '02.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.64, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '03.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.90, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '04.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.93, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '05.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '06.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '07.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '08.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '09.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '10.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '11.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '12.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '13.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:05.81, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '14.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.93, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '15.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.66, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '16.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.66, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '17.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.66, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '18.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.83, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '19.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:06.50, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '20.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '21.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.05, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '22.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.14, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '23.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:06.12, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Input #0, mp3, from '24.mp3':
    
  Metadata:
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.14, start: 0.046042, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s

    The following is ffmpeg info output during the production of final movie MOVIE.MP4
    (Step 3)

    ========================BEGIN 
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\00.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:05.54, start: 0.000000, bitrate: 174 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 137 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\01.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.71, start: 0.000000, bitrate: 269 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 242 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\02.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.71, start: 0.000000, bitrate: 285 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 245 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\03.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.04, start: 0.000000, bitrate: 275 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 239 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\04.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.04, start: 0.000000, bitrate: 286 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 250 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\05.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 281 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 249 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\06.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 281 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 249 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\07.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 150 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 115 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\08.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 201 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 166 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\09.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 247 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 214 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\10.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 247 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 214 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\11.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 131 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 95 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\12.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 194 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 159 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\13.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:05.88, start: 0.000000, bitrate: 207 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 169 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\14.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.04, start: 0.000000, bitrate: 335 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 300 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\15.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.88, start: 0.000000, bitrate: 365 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 342 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\16.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.88, start: 0.000000, bitrate: 384 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 362 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\17.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:02.88, start: 0.000000, bitrate: 390 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 368 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\18.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.04, start: 0.000000, bitrate: 386 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 363 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\19.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:06.71, start: 0.000000, bitrate: 204 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 169 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\20.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 194 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 159 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\21.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 194 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 159 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\22.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 208 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 169 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\23.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:06.21, start: 0.000000, bitrate: 204 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 166 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\24.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:00:03.21, start: 0.000000, bitrate: 173 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 134 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '\VID\MOVIE.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.35.101
    
  Duration: 00:01:29.05, start: 0.000000, bitrate: 239 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 203 kb/s, 23.53 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 30 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    I have not been able yet to reproduce the issue with a smaller set of movies, in the meantime if you would to get a copy I would have to upload an archive to a link so you can have them on your side.

    Alternatively, if you would like me to provide additional info from these steps let me know what commands and I will be happy to provide.

    Thank you.

  • FFmpeg playing audio slowly after conversion from AAC

    18 janvier 2014, par AnthonyM

    I'm attempting to convert an AAC audio stream for playback. I've discovered that I need to convert from AV_SAMPLE_FMT_FLTP to AV_SAMPLE_FMT_S16 but when I do so the audio plays back at about half speed.

    swr = swr_alloc();
    
assert(av_opt_set_int(swr, "in_channel_layout", audioContext->channel_layout, 0) == 0);
    
assert(av_opt_set_int(swr, "out_channel_layout", audioContext->channel_layout, 0) == 0);
    
assert(av_opt_set_int(swr, "in_sample_rate", audioContext->sample_rate, 0) == 0);
    
assert(av_opt_set_int(swr, "out_sample_rate", 44100, 0) == 0);
    
assert(av_opt_set_int(swr, "in_sample_fmt", audioContext->sample_fmt, 0) == 0);
    
assert(av_opt_set_int(swr, "out_sample_fmt", AV_SAMPLE_FMT_S16, 0) == 0);
    
swr_init(swr);

    There is my code to convert. The input sample rate is 44100 and the audio is stereo.

    I call the code with

    swr_convert(swr, &output, aDecodedFrame->nb_samples, (const uint8_t**)aDecodedFrame->extended_data, aDecodedFrame->nb_samples) >= 0)

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