88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
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/* Copyright (C) 2002 Jean-Marc Valin
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File: speex_jitter.h
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Adaptive jitter buffer for Speex
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of the Xiph.org Foundation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPEEX_JITTER_H
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#define SPEEX_JITTER_H
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#include "speex.h"
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#include "speex_bits.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SPEEX_JITTER_MAX_PACKET_SIZE 1500
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#define SPEEX_JITTER_MAX_BUFFER_SIZE 20
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#define MAX_MARGIN 12
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typedef struct SpeexJitter {
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int buffer_size;
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int pointer_timestamp;
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SpeexBits current_packet;
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int valid_bits;
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char buf[SPEEX_JITTER_MAX_BUFFER_SIZE][SPEEX_JITTER_MAX_PACKET_SIZE];
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int timestamp[SPEEX_JITTER_MAX_BUFFER_SIZE];
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int len[SPEEX_JITTER_MAX_BUFFER_SIZE];
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void *dec;
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int frame_size;
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int frame_time;
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int reset_state;
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int lost_count;
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float shortterm_margin[MAX_MARGIN];
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float longterm_margin[MAX_MARGIN];
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float loss_rate;
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} SpeexJitter;
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void speex_jitter_init(SpeexJitter *jitter, void *decoder, int sampling_rate);
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void speex_jitter_destroy(SpeexJitter *jitter);
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void speex_jitter_put(SpeexJitter *jitter, char *packet, int len, int time);
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void speex_jitter_get(SpeexJitter *jitter, short *out, int *current_timestamp);
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int speex_jitter_get_pointer_timestamp(SpeexJitter *jitter);
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#ifdef __cplusplus
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}
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#endif
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#endif
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