[mythtv] [mythtv-commits] Ticket #11497: ffmpeg1.1 sync: issue with HLS

[Bill Meek]

On 06/04/2013 07:35 PM, Jean-Yves Avenard wrote:
> Hi
>
> On 5 June 2013 01:20, Bill Meek <keemllib at gmail.com> wrote:
>>
>> I suspect you tested with an HD recording with 5.1 audio. I had the
>> same result. When I tested with an SD recording, it worked fine.
>
> are you sure you're using faac and not the ffmpeg build-in AAC
> encoder? last one has definite issues

To be honest, I don't know. But I built 0.27-pre with the following

   --enable-nonfree --enable-libfaac --enable-libx264 --enable-libvpx \
   --enable-libxvid --enable-proc-opt

And I ran the backend with and without -O HLSAUDIO=aac and heard the
same static and slow audio that was mentioned earlier.

> what type of audio is it using to start with? AC3 or AAC ?

Full mythtranscode log with -v libav --loglevel debug is here:

     http://pastebin.com/raw.php?i=bkwuP90L

These lines suggest AC3:

     ...Stream #0:1[0x34], 20, 1/90000: Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s
     ...Stream #0:2[0x35], 20, 1/90000: Audio: ac3, 48000 Hz, stereo, fltp, 128 kb/s (visual impaired)

But following the above are lines like:

     ...[libfaac @ 0x7f12fe2aada0] Channel layout not specified

> and open another bug for this, this is unrelated to the current one.

Will do. If you recommend any other -v options or test requirements, I'd
be happy to rerun the tests before creating the ticket. I know that editing
the logs is sometimes a bad idea, so if the 54500 lines I edited out of the
pastebin are useful, please let me know. I've still got them.

-- 
Bill