All,
Firstly congratualtions on the development progress on the SNOW wavelet
codec. I worked on Dirac sometime ago and so was very interested to read
about SNOW.
I have a small test harness which I have built with ffmpeg api support
with an aim to test the SNOW codec. I am keen to learn more about the
improvements done over Dirac and Schroedinger as
I have a question however regarding setting the AVCodecContext
structure. I am currently capturing raw YUV420P at 176x144 res. at about
10-15 FPS and I am setting the following AVCodecContext params:
c->time_base= (AVRational){1,25};
c->width=ffmpegData->width;
c->height=ffmpegData->height;
c->pix_fmt = PIX_FMT_YUV420P;
c->gop_size = 10; // emit one intra frame every ten frames
c->me_method=9; //SNOW specific
Is this sufficient (or even correct) for SNOW ? or do I need to tweak
anymore.?
Also...I running one thread for encoding and one for decoding - do I
need to call avcodec_init() for both threads?
Your help is much appreciated and keep up the fantastic work.
Regards,
-Chris Dobbs
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