static int ogg_new_buf(struct ogg *ogg, int idx) { struct ogg_stream *os = ogg->streams + idx; uint8_t *nb = av_malloc(os->bufsize); int size = os->bufpos - os->pstart; if(os->buf){ memcpy(nb, os->buf + os->pstart, size); av_free(os->buf); } os->buf = nb; os->bufpos = size; os->pstart = 0; return 0; }