| Index: speex/libspeex/speex_callbacks.c
|
| ===================================================================
|
| --- speex/libspeex/speex_callbacks.c (revision 0)
|
| +++ speex/libspeex/speex_callbacks.c (revision 0)
|
| @@ -0,0 +1,144 @@
|
| +/* Copyright (C) 2002 Jean-Marc Valin
|
| + File speex_callbacks.c
|
| + Callback handling and in-band signalling
|
| +
|
| +
|
| + Redistribution and use in source and binary forms, with or without
|
| + modification, are permitted provided that the following conditions
|
| + are met:
|
| +
|
| + - Redistributions of source code must retain the above copyright
|
| + notice, this list of conditions and the following disclaimer.
|
| +
|
| + - Redistributions in binary form must reproduce the above copyright
|
| + notice, this list of conditions and the following disclaimer in the
|
| + documentation and/or other materials provided with the distribution.
|
| +
|
| + - Neither the name of the Xiph.org Foundation nor the names of its
|
| + contributors may be used to endorse or promote products derived from
|
| + this software without specific prior written permission.
|
| +
|
| + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
| + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
| + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
| + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
| + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
| + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
| + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
| + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| +
|
| +*/
|
| +
|
| +#ifdef HAVE_CONFIG_H
|
| +#include "config.h"
|
| +#endif
|
| +
|
| +#include <speex/speex_callbacks.h>
|
| +#include "arch.h"
|
| +#include "os_support.h"
|
| +
|
| +EXPORT int speex_inband_handler(SpeexBits *bits, SpeexCallback *callback_list, void *state)
|
| +{
|
| + int id;
|
| + SpeexCallback *callback;
|
| + /*speex_bits_advance(bits, 5);*/
|
| + id=speex_bits_unpack_unsigned(bits, 4);
|
| + callback = callback_list+id;
|
| +
|
| + if (callback->func)
|
| + {
|
| + return callback->func(bits, state, callback->data);
|
| + } else
|
| + /*If callback is not registered, skip the right number of bits*/
|
| + {
|
| + int adv;
|
| + if (id<2)
|
| + adv = 1;
|
| + else if (id<8)
|
| + adv = 4;
|
| + else if (id<10)
|
| + adv = 8;
|
| + else if (id<12)
|
| + adv = 16;
|
| + else if (id<14)
|
| + adv = 32;
|
| + else
|
| + adv = 64;
|
| + speex_bits_advance(bits, adv);
|
| + }
|
| + return 0;
|
| +}
|
| +
|
| +EXPORT int speex_std_mode_request_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + spx_int32_t m;
|
| + m = speex_bits_unpack_unsigned(bits, 4);
|
| + speex_encoder_ctl(data, SPEEX_SET_MODE, &m);
|
| + return 0;
|
| +}
|
| +
|
| +EXPORT int speex_std_low_mode_request_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + spx_int32_t m;
|
| + m = speex_bits_unpack_unsigned(bits, 4);
|
| + speex_encoder_ctl(data, SPEEX_SET_LOW_MODE, &m);
|
| + return 0;
|
| +}
|
| +
|
| +EXPORT int speex_std_high_mode_request_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + spx_int32_t m;
|
| + m = speex_bits_unpack_unsigned(bits, 4);
|
| + speex_encoder_ctl(data, SPEEX_SET_HIGH_MODE, &m);
|
| + return 0;
|
| +}
|
| +
|
| +#ifndef DISABLE_VBR
|
| +EXPORT int speex_std_vbr_request_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + spx_int32_t vbr;
|
| + vbr = speex_bits_unpack_unsigned(bits, 1);
|
| + speex_encoder_ctl(data, SPEEX_SET_VBR, &vbr);
|
| + return 0;
|
| +}
|
| +#endif /* #ifndef DISABLE_VBR */
|
| +
|
| +EXPORT int speex_std_enh_request_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + spx_int32_t enh;
|
| + enh = speex_bits_unpack_unsigned(bits, 1);
|
| + speex_decoder_ctl(data, SPEEX_SET_ENH, &enh);
|
| + return 0;
|
| +}
|
| +
|
| +#ifndef DISABLE_VBR
|
| +EXPORT int speex_std_vbr_quality_request_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + float qual;
|
| + qual = speex_bits_unpack_unsigned(bits, 4);
|
| + speex_encoder_ctl(data, SPEEX_SET_VBR_QUALITY, &qual);
|
| + return 0;
|
| +}
|
| +#endif /* #ifndef DISABLE_VBR */
|
| +
|
| +EXPORT int speex_std_char_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + unsigned char ch;
|
| + ch = speex_bits_unpack_unsigned(bits, 8);
|
| + _speex_putc(ch, data);
|
| + /*printf("speex_std_char_handler ch=%x\n", ch);*/
|
| + return 0;
|
| +}
|
| +
|
| +
|
| +
|
| +/* Default handler for user callbacks: skip it */
|
| +EXPORT int speex_default_user_handler(SpeexBits *bits, void *state, void *data)
|
| +{
|
| + int req_size = speex_bits_unpack_unsigned(bits, 4);
|
| + speex_bits_advance(bits, 5+8*req_size);
|
| + return 0;
|
| +}
|
|
|
| Property changes on: speex/libspeex/speex_callbacks.c
|
| ___________________________________________________________________
|
| Name: svn:executable
|
| + *
|
|
|
|
|