[mythtv-users] MythTV 0.24-1.80 - No sound on HD TV recording

[PJR]

On 23/04/12 22:07, John Pilkington wrote:
> On 23/04/12 19:51, PJR wrote:
>> I recorded 'The Italian Job' from ITV HD the other day and when I play
>> it there's sound from the TV broadcast prior to the movie but as soon as
>> it starts there's no sound what so ever. This despite my AV amp
>> (connected to the mythbox by HDMI) showing it's receiving 5.1 sound but
>> no sound out of the speakers.  All other HD TV recordings playback sound
>> in the appropriate number of channels.  Any thoughts as to what's gone
>> wrong?   Setting or un-setting Dolby, DTS etc in mythfrontend makes no
>> difference. The TV decoder is a PC nano Stick 290e which has worked
>> without fault.
>
> vlc hung up when asked to play my recording but was fine after I
> chopped off the beginning.  There isn't any sound anyway until the
> initial pan down gets to the viaduct.
>
> ffmpeg -i on the chopped file says:
>     Stream #0:0[0x12d]: Video: h264 (High) ([27][0][0][0] / 0x001B),
> yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 29.17 fps, 50 tbr, 90k tbn, 50 tbc
>     Stream #0:1[0x12e](eng): Audio: aac_latm ([17][0][0][0] / 0x0011),
> 48000 Hz, 5.1, s16
>     Stream #0:2[0x132](eng): Audio: aac_latm ([17][0][0][0] / 0x0011),
> 48000 Hz, 2 channels (FC), s16 (visual impaired)
>     Stream #0:3[0x131](eng): Subtitle: dvb_subtitle ([6][0][0][0] /
> 0x0006)
>
>
>
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What did you use to chop off the beginning of the file?  I don't want to
upgrade to 0.25 just yet; there seems a lot of issues with it and it's
taken me some time to get 0.24 working on my h/w setup.  Is there a
backport of the AAC audio updates to 0.24 or some such?