annotate libtest/wavwriter.c @ 78:5bc228bb421e

libgsmefr: lsp_az.c compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 26 Nov 2022 06:54:06 +0000
parents 634df6435e16
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
7
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /* ------------------------------------------------------------------
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * Copyright (C) 2009 Martin Storsjo
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * Licensed under the Apache License, Version 2.0 (the "License");
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * you may not use this file except in compliance with the License.
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * You may obtain a copy of the License at
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 * http://www.apache.org/licenses/LICENSE-2.0
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * Unless required by applicable law or agreed to in writing, software
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * distributed under the License is distributed on an "AS IS" BASIS,
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 * express or implied.
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 * See the License for the specific language governing permissions
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 * and limitations under the License.
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 * -------------------------------------------------------------------
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 */
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 #include "wavwriter.h"
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 #include <stdio.h>
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 #include <string.h>
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 #include <stdlib.h>
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include <stdint.h>
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 struct wav_writer {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 FILE *wav;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 int data_length;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 int sample_rate;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 int bits_per_sample;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 int channels;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 };
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 static void write_string(struct wav_writer* ww, const char *str) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 fputc(str[0], ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 fputc(str[1], ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 fputc(str[2], ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 fputc(str[3], ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 static void write_int32(struct wav_writer* ww, int value) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 fputc((value >> 0) & 0xff, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 fputc((value >> 8) & 0xff, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 fputc((value >> 16) & 0xff, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 fputc((value >> 24) & 0xff, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 static void write_int16(struct wav_writer* ww, int value) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 fputc((value >> 0) & 0xff, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 fputc((value >> 8) & 0xff, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 static void write_header(struct wav_writer* ww, int length) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 int bytes_per_frame, bytes_per_sec;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 write_string(ww, "RIFF");
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 write_int32(ww, 4 + 8 + 16 + 8 + length);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 write_string(ww, "WAVE");
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 write_string(ww, "fmt ");
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 write_int32(ww, 16);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 bytes_per_frame = ww->bits_per_sample/8*ww->channels;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 bytes_per_sec = bytes_per_frame*ww->sample_rate;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 write_int16(ww, 1); // Format
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 write_int16(ww, ww->channels); // Channels
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 write_int32(ww, ww->sample_rate); // Samplerate
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 write_int32(ww, bytes_per_sec); // Bytes per sec
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 write_int16(ww, bytes_per_frame); // Bytes per frame
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 write_int16(ww, ww->bits_per_sample); // Bits per sample
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 write_string(ww, "data");
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 write_int32(ww, length);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 void* wav_write_open(const char *filename, int sample_rate, int bits_per_sample, int channels) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 struct wav_writer* ww = (struct wav_writer*) malloc(sizeof(*ww));
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 memset(ww, 0, sizeof(*ww));
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 ww->wav = fopen(filename, "wb");
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 if (ww->wav == NULL) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 free(ww);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 return NULL;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 ww->data_length = 0;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 ww->sample_rate = sample_rate;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 ww->bits_per_sample = bits_per_sample;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 ww->channels = channels;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 write_header(ww, ww->data_length);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 return ww;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 void wav_write_close(void* obj) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 struct wav_writer* ww = (struct wav_writer*) obj;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 if (ww->wav == NULL) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 free(ww);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 return;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 fseek(ww->wav, 0, SEEK_SET);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 write_header(ww, ww->data_length);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 fclose(ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 free(ww);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 void wav_write_data(void* obj, const unsigned char* data, int length) {
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 struct wav_writer* ww = (struct wav_writer*) obj;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 if (ww->wav == NULL)
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 return;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 fwrite(data, length, 1, ww->wav);
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 ww->data_length += length;
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 }
634df6435e16 libtest: WAV reader and writer code from opencore-amr-0.1.6/test
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111