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 |
+ * |