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/**
* @file g7221/encode.c G.722.1 Encode
*
* Copyright (C) 2010 Creytiv.com
*/
#include <re.h>
#include <baresip.h>
#define G722_1_EXPOSE_INTERNAL_STRUCTURES
#include <g722_1.h>
#include "g7221.h"
struct auenc_state {
g722_1_encode_state_t enc;
};
int g7221_encode_update(struct auenc_state **aesp, const struct aucodec *ac,
struct auenc_param *prm, const char *fmtp)
{
const struct g7221_aucodec *g7221 = (struct g7221_aucodec *)ac;
struct auenc_state *aes;
(void)prm;
(void)fmtp;
if (!aesp || !ac)
return EINVAL;
aes = *aesp;
if (aes)
return 0;
aes = mem_alloc(sizeof(*aes), NULL);
if (!aes)
return ENOMEM;
if (!g722_1_encode_init(&aes->enc, g7221->bitrate, ac->srate)) {
mem_deref(aes);
return EPROTO;
}
*aesp = aes;
return 0;
}
int g7221_encode(struct auenc_state *aes, uint8_t *buf, size_t *len,
int fmt, const void *sampv, size_t sampc)
{
size_t framec;
if (!aes || !buf || !len || !sampv)
return EINVAL;
framec = sampc / aes->enc.frame_size;
if (sampc != aes->enc.frame_size * framec)
return EPROTO;
if (*len < aes->enc.bytes_per_frame * framec)
return ENOMEM;
*len = g722_1_encode(&aes->enc, buf, sampv, (int)sampc);
return 0;
}
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