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  • ffmpeg programatically set the export date to download date using python

    16 janvier 2021, par Vladimir Tarasov

    i'm currently using the code below to export a youtube-dl converted video (with ffmpeg and youtube-dl for python)
how could i programatically set the good options for ffmpeg to add the download date (at least today's date) to the .mp3 file ?

    


    ydl_opts = {
    'format': 'bestaudio/best',
    'outtmpl': path + urlToTitleYT(link) + '.mp3',
    'postprocessors': [{
        'key': 'FFmpegExtractAudio',
        'preferredcodec': 'mp3',
        'preferredquality': '320',
    }],
}

with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    ydl.download([link])



    


  • How to convert date format of text in m3u8 file ? [closed]

    30 décembre 2020, par Rekabet Kurumu

    I have a Flussonic media server. I'm transcoding RTMP into HLS and must edit the M3U8 file.

    


    Problem :
How to change the date part of a name in segments of an .m3u8 file ?

    


    If stream name is "sample" output will be foo.com/stream.m3u8 this is perfect. but inside m3u8 file outout looking like this

    


    #EXTM3U
#EXT-X-TARGETDURATION:5
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:20633
#EXT-X-PROGRAM-DATE-TIME:2020-12-30T11:15:07Z
#EXTINF:5.000,
2020/12/30/11/15/07-05000.ts?token=ADM1-1609326905-99fddfc3eb912171a5b85e553588a563704f5fb9
#EXTINF:5.000,
2020/12/30/11/15/12-05000.ts?token=ADM1-1609326905-99fddfc3eb912171a5b85e553588a563704f5fb9
#EXTINF:5.000,
2020/12/30/11/15/17-05000.ts?token=ADM1-1609326905-99fddfc3eb912171a5b85e553588a563704f5fb9


    


    output lookin 2020/12/30/11/15/ like this. i want this part will be microtime or time.

    


    For example :

    


    1609326905-05000.ts?token=99fddfc3eb912171a5b85e553588a563704f5fb9
1609327050-05000.ts?token=99fddfc3eb912171a5b85e553588a563704f5fb9
1609329450-05000.ts?token=99fddfc3eb912171a5b85e553588a563704f5fb9


    


    is it possible ?

    


  • avformat/hls : Fixes overwriting existing #EXT-X-PROGRAM-DATE-TIME value in HLS playlist

    1er décembre 2020, par Vignesh Ravichandran
    avformat/hls : Fixes overwriting existing #EXT-X-PROGRAM-DATE-TIME value in HLS playlist

    fix ticket : 8989
    

    This is is due to the following behavior in the current code :
    
1. The initial_prog_date_time gets set to the current local time
    
2. The existing playlist (.m3u8) file gets parsed and the segments
    
   present are added to the variant stream
    
3. The new segment is created and added
    
4. The existing segments and the new segment are written to the
    
   playlist file. The initial_prog_date_time from point 1 is used
    
   for calculating "#EXT-X-PROGRAM-DATE-TIME" for the segments,
    
   which results in incorrect "#EXT-X-PROGRAM-DATE-TIME" values
    
   for existing segments
    
The following approach fixes this bug :
    
1. Add a new variable "discont_program_date_time" of type double
    
   to HLSSegment struct
    
2. Store the "EXT-X-PROGRAM-DATE-TIME" value from the existing
    
   segments in this variable
    
3. When writing to playlist file if "discont_program_date_time"
    
   is set, then use that value for "EXT-X-PROGRAM-DATE-TIME" else
    
   use the value present in vs->initial_prog_date_time
    

    Signed-off-by : Vignesh Ravichandran <vignesh.ravichandran02@gmail.com>
    
Signed-off-by : liuqi05 <liuqi05@kuaishou.com>
    • [DH] libavformat/hlsenc.c

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