Re: [Ekiga-list] G729 codec

[Jure Petrovic <fonz siol net>]

I noted RECOMENDED_FRAMES_PER_PACKET and MAX_FRAMES_PER_PACKET defines
in plugin information structure, but changing these values by itself did
not give any results.

So, if I understand you correctly, encode function does NOT get called
for every frame in packet.

Let us take for example g729 with 10msec sample and 2 frames per packet.
Our encode function in this case would have to take 320 bytes (2 * PCM16
sample) and output 20 bytes (2 * G729 sample). Is that correct?

Is memory for encoded data allocated in regard to toLen variable? 

Thank you for help,
Jure Petrovic 
 

On Thu, 2007-04-26 at 18:25 +1000, Craig Southeren wrote:
> The codec advertises the recommended number of frames per packet in
> the 
> plugin tables. OPAL will then negotiate the correct number of frames 
> with the remote end, and then use that number to ensure the correct 
> amount of PCM data gets sent to the codec.
> 
> The encoder function should consume the maximum amount of PCM data
> and 
> generate output frames appropriately.
>