1 /* Copyright (C) 2002 Jean-Marc Valin
3 Callback handling and in-band signalling
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22 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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28 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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35 #include "speex_callbacks.h"
38 int speex_inband_handler(SpeexBits
*bits
, SpeexCallback
*callback_list
, void *state
)
41 SpeexCallback
*callback
;
42 /*speex_bits_advance(bits, 5);*/
43 id
=speex_bits_unpack_unsigned(bits
, 4);
44 callback
= callback_list
+id
;
48 return callback
->func(bits
, state
, callback
->data
);
50 /*If callback is not registered, skip the right number of bits*/
65 speex_bits_advance(bits
, adv
);
70 int speex_std_mode_request_handler(SpeexBits
*bits
, void *state
, void *data
)
73 m
= speex_bits_unpack_unsigned(bits
, 4);
74 speex_encoder_ctl(data
, SPEEX_SET_MODE
, &m
);
78 int speex_std_low_mode_request_handler(SpeexBits
*bits
, void *state
, void *data
)
81 m
= speex_bits_unpack_unsigned(bits
, 4);
82 speex_encoder_ctl(data
, SPEEX_SET_LOW_MODE
, &m
);
86 int speex_std_high_mode_request_handler(SpeexBits
*bits
, void *state
, void *data
)
89 m
= speex_bits_unpack_unsigned(bits
, 4);
90 speex_encoder_ctl(data
, SPEEX_SET_HIGH_MODE
, &m
);
94 int speex_std_vbr_request_handler(SpeexBits
*bits
, void *state
, void *data
)
97 vbr
= speex_bits_unpack_unsigned(bits
, 1);
98 speex_encoder_ctl(data
, SPEEX_SET_VBR
, &vbr
);
102 int speex_std_enh_request_handler(SpeexBits
*bits
, void *state
, void *data
)
105 enh
= speex_bits_unpack_unsigned(bits
, 1);
106 speex_decoder_ctl(data
, SPEEX_SET_ENH
, &enh
);
110 int speex_std_vbr_quality_request_handler(SpeexBits
*bits
, void *state
, void *data
)
113 qual
= speex_bits_unpack_unsigned(bits
, 4);
114 speex_encoder_ctl(data
, SPEEX_SET_VBR_QUALITY
, &qual
);
119 int speex_std_char_handler(SpeexBits
*bits
, void *state
, void *data
)
122 ch
= speex_bits_unpack_unsigned(bits
, 8);
123 _speex_putc(ch
, data
);
129 /* Default handler for user callbacks: skip it */
130 int speex_default_user_handler(SpeexBits
*bits
, void *state
, void *data
)
132 int req_size
= speex_bits_unpack_unsigned(bits
, 4);
133 speex_bits_advance(bits
, 5+8*req_size
);