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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved.
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <string.h>
#include "aom_dsp/bitwriter.h"
void aom_start_encode(aom_writer *w, uint8_t *source) {
w->buffer = source;
w->pos = 0;
od_ec_enc_init(&w->ec, 62025);
}
int aom_stop_encode(aom_writer *w) {
int nb_bits;
uint32_t bytes;
unsigned char *data;
data = od_ec_enc_done(&w->ec, &bytes);
if (!data) {
od_ec_enc_clear(&w->ec);
return -1;
}
nb_bits = od_ec_enc_tell(&w->ec);
memcpy(w->buffer, data, bytes);
w->pos = bytes;
od_ec_enc_clear(&w->ec);
return nb_bits;
}
int aom_tell_size(aom_writer *w) {
const int nb_bits = od_ec_enc_tell(&w->ec);
return nb_bits;
}