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annotate libtest/wavwriter.h @ 477:4c9222d95647

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libtwamr encoder: always emit frame->mode = mode; In the original implementation of amr_encode_frame(), the 'mode' member of the output struct was set to 0xFF if the output frame type is TX_NO_DATA. This design was made to mimic the mode field (16-bit word) being set to 0xFFFF (or -1) in 3GPP test sequence format - but nothing actually depends on this struct member being set in any way, and amr_frame_to_tseq() generates the needed 0xFFFF on its own, based on frame->type being equal to TX_NO_DATA. It is simpler and more efficient to always set frame->mode to the actual encoding mode in amr_encode_frame(), and this new behavior has already been documented in doc/AMR-library-API description in anticipation of the present change.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 18 May 2024 22:30:42 +0000
parents 634df6435e16
children
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1 /* ------------------------------------------------------------------
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2 * Copyright (C) 2009 Martin Storsjo
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3 *
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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7 *
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8 * http://www.apache.org/licenses/LICENSE-2.0
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9 *
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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13 * express or implied.
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14 * See the License for the specific language governing permissions
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15 * and limitations under the License.
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16 * -------------------------------------------------------------------
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17 */
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19 #ifndef WAVWRITER_H
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20 #define WAVWRITER_H
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22 #ifdef __cplusplus
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23 extern "C" {
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24 #endif
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26 void* wav_write_open(const char *filename, int sample_rate, int bits_per_sample, int channels);
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27 void wav_write_close(void* obj);
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29 void wav_write_data(void* obj, const unsigned char* data, int length);
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31 #ifdef __cplusplus
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32 }
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33 #endif
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35 #endif
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