[FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac

[Robin van der Linden]

I give you a detailed answer in the next 24 Hrs. I currently dont have Access to my system and code 

Cheers,

Robin

________________________________
Von: Mahesh Velankar <mvelanka at gmail.com>
Gesendet: Samstag, 10. Dezember 2022 22:38
An: ffmpeg-user at ffmpeg.org
Betreff: Re: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac 

Robin, 

This is not for a single video, I have to keep the application ready 
that will be receiving different input TS and the app will need to 
prepare the playlists,  segments and master playlist. 

I am  aware that I need to write script/app for this. 

Please tell me the command line to prepare individual playlists and 
segments............and I will be able to write the master playlist 
myself. 

Thanks in advance for your help 

-Mahesh 

--------------------------- 

Robin wrote: 

Hello, 

ffmpeg can do this, at least some parts. It will create the segments 
and a master.m3u8 file for each track by itself. Still you will need 
to create master.m3u8 File wich references all the tracks master.m3u8 
yourself. My Script is about 3500 lines long, so be prepared that you 
have to code lot yourself. 

Im currently on the go, but I will try to provide you some more 
advice. Are you about to encode a single Video or do you need a full 
implemented rapackaging process for many vidz? 


Kind regards, 

Robin 

________________________________ 


On Sat, Dec 10, 2022 at 1:53 PM Mahesh Velankar <mvelanka at gmail.com> wrote: 

> I have a transport stream file with following details (given by ffprobe) 
> 
> Input #0, mpegts, from 'f-13324-ccrtpa_before_tc_1669374838.ts': 
>   Duration: 00:04:23.44, start: 8879.809433, bitrate: 2373 kb/s 
>   Program 3 
>     Stream #0:0[0x31]: Video: h264 (Main) ([27][0][0][0] / 0x001B), 
> yuv420p(tv, bt709, progressive), 856x480 [SAR 320:321 DAR 16:9], Closed 
> Captions, 30 fps, 29.97 tbr, 90k tbn, 60 tbc 
>     Stream #0:1[0x34](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 
> 5.1(side), fltp, 320 kb/s 
>     Stream #0:2[0x35](spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 
> stereo, fltp, 192 kb/s (visual impaired) 
>     Stream #0:3[0x36]: Data: klv (KLVA / 0x41564C4B) 
> 
> 
> I want to convert this into HLS playlists and segments. The requirements 
> are as follows 
> There will be two playlists 
> 
> playlist 1 will have a listing of TS segments. Each such segment will have 
> 1. Video stream (Stream #0:0) from the above input (h264) and 
> 2. Audio stream 1 (Stream #0:1) from the above input (ac3 5.1) .... but 
> converted to aac format 
> 
> playlist 2 will have a listing of TS segments. Each such segment will have 
> 1. Video stream (Stream #0:0) from the above input (h264) and 
> 2. Audio stream 2 (Stream #0:2) from the above input (ac3 stereo) .... but 
> converted to aac format 
> 
> In short the output segments will have one video and one audio stream. 
> Since there are two audio streams I need to convert it into two different 
> playlists ... each having video and one of the audio streams 
> 
> ac3 to aac conversion is mandatory,  as it has to be played in the browser. 
> 
> How can I achieve this with the ffmpeg command line? Please help or point 
> me to any such recipe if already available. 
> 
> Thanks 
> 
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