Function pp_get_context

libpostproc/postprocess.c:963–984

static const AVClass av_codec_context_class = { "Postproc", context_to_name, NULL };

pp_context *pp_get_context(int width, int height, int cpuCaps){
    PPContext *c= av_malloc(sizeof(PPContext));
    int stride= FFALIGN(width, 16);  //assumed / will realloc if needed
    int qpStride= (width+15)/16 + 2; //assumed / will realloc if needed

    memset(c, 0, sizeof(PPContext));
    c->av_class = &av_codec_context_class;
    c->cpuCaps= cpuCaps;
    if(cpuCaps&PP_FORMAT){
        c->hChromaSubSample= cpuCaps&0x3;
        c->vChromaSubSample= (cpuCaps>>4)&0x3;
    }else{
        c->hChromaSubSample= 1;
        c->vChromaSubSample= 1;
    }

    reallocBuffers(c, width, height, stride, qpStride);

    c->frameNum=-1;

    return c;
}

void pp_free_context(void *vc){
    PPContext *c = (PPContext*)vc;