[FFmpeg-devel] [PATCH] Add libavsequencer.

[Sebastian Vater]

Ronald S. Bultje a ?crit :
> Hi,
>
> On Wed, Aug 25, 2010 at 8:36 AM, Sebastian Vater
> <cdgs.basty at googlemail.com> wrote:
>   
>> My plan to implement the tests is, that I write, while playback &
>> mixing, to a text file containing the internal dump of the player / BSS
>> / mixer structures. This has to be done twice, one for original
>> TuComposer, and one for AVSequencer.
>>     
>
> Why not just compare the PCM output? If they are identical for a bunch
> of files, likely the mixer works the same as before. This is how all
> FFmpeg regtests works (http://fate.ffmpeg.org/).
>   

My plan here was to take all IFF-TCM1 files I have for the test, whose
number is around 1000, let's say for an average duration of 3 mins as
32-bit 44,1kHz stereo samples, we would have a total duration around
3000 minutes, which is around 50 hours of total playback time. Storing
such a huge amount requires lots of HDD space (1211 MB for 60 minutes).

We either should use then a lower sample rate (4kHz output should be
enough for a fate test), or we use mp3 64kbit/s as output codec.

Another drawback would be, if a test fails, we don't have any
informations why and what broke, but in that case I could still run a
specialized test.

-- 

Best regards,
                   :-) Basty/CDGS (-: