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