aom/aom_dsp/daalaboolwriter.c

32 строки
1.1 KiB
C

/*
* 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/daalaboolwriter.h"
void aom_daala_start_encode(daala_writer *br, uint8_t *source) {
br->buffer = source;
br->pos = 0;
od_ec_enc_init(&br->ec, 62025);
}
void aom_daala_stop_encode(daala_writer *br) {
uint32_t daala_bytes;
unsigned char *daala_data;
daala_data = od_ec_enc_done(&br->ec, &daala_bytes);
memcpy(br->buffer, daala_data, daala_bytes);
br->pos = daala_bytes;
/* Prevent ec bitstream from being detected as a superframe marker.
Must always be added, so that rawbits knows the exact length of the
bitstream. */
br->buffer[br->pos++] = 0;
}