[mythtv] Mytharchivehelper and streaminfo problems

[Otto Kolsi]

Paul Harrison wrote:
> Otto Kolsi wrote:
>> Some recorded files cause problems in MythArchive because video
>> resolution is detected as 0x0. Timings/lengths might also be wrong.
>  
> If you play the file using 'ffplay -stats FILENAME' does the dump stream
> info thats displayed show the correct resolution and does that differ
> from the dump stream info displayed when mytharchivehelper is run?

I fetched and compiled fresh ffmpeg ([11634]) and tried ffplay with 
several problematic recordings. In all cases ffplay dumps valid 
resolution. I've attached one example where is relevant parts of data 
from mytharchive, streaminfo.xml and ffplay.

> It should be possible to change mytharchivehelper to decode a few video
> frames and get the resolution that way if necessary.

This is just guessing, but would it be possible to advance the position 
from where the stream info is fetched? So that if we don't receive valid 
info, try 3-5 times and each time go bit further? If the beginning of 
the stream is somehow corrupted and working values can be fetched little 
bit further..
-- 
   Otto
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