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comparison playsound/playsound.c @ 58:4a51162099e0

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Renamed from test/test_sdlsound.c ... lots of other updates, too.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 24 Sep 2001 15:28:32 +0000
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children 7505dcf8d3b7
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57:1b89d5720dcb 58:4a51162099e0
1 /*
2 * SDL_sound -- An abstract sound format decoding API.
3 * Copyright (C) 2001 Ryan C. Gordon.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 /**
21 * This is a quick and dirty test of SDL_sound.
22 *
23 * Please see the file LICENSE in the source's root directory.
24 *
25 * This file written by Ryan C. Gordon. (icculus@clutteredmind.org)
26 */
27
28 #include <stdio.h>
29 #include <string.h>
30 #include <assert.h>
31 #include "SDL.h"
32 #include "SDL_sound.h"
33
34 #define PLAYSOUND_VER_MAJOR 0
35 #define PLAYSOUND_VER_MINOR 1
36 #define PLAYSOUND_VER_PATCH 1
37
38
39 static void output_versions(const char *argv0)
40 {
41 Sound_Version compiled;
42 Sound_Version linked;
43 SDL_version sdl_compiled;
44 const SDL_version *sdl_linked;
45
46 SOUND_VERSION(&compiled);
47 Sound_GetLinkedVersion(&linked);
48 SDL_VERSION(&sdl_compiled);
49 sdl_linked = SDL_Linked_Version();
50
51 fprintf(stderr,
52 "%s version %d.%d.%d.\n"
53 " Compiled against SDL_sound version %d.%d.%d,\n"
54 " and linked against %d.%d.%d.\n"
55 " Compiled against SDL version %d.%d.%d,\n"
56 " and linked against %d.%d.%d.\n\n",
57 argv0,
58 PLAYSOUND_VER_MAJOR, PLAYSOUND_VER_MINOR, PLAYSOUND_VER_PATCH,
59 compiled.major, compiled.minor, compiled.patch,
60 linked.major, linked.minor, linked.patch,
61 sdl_compiled.major, sdl_compiled.minor, sdl_compiled.patch,
62 sdl_linked->major, sdl_linked->minor, sdl_linked->patch);
63 } /* output_versions */
64
65
66 static void output_decoders(void)
67 {
68 const Sound_DecoderInfo **rc = Sound_AvailableDecoders();
69 const Sound_DecoderInfo **i;
70
71 fprintf(stderr, "Supported sound formats:\n");
72 if (rc == NULL)
73 fprintf(stderr, " * Apparently, NONE!\n");
74 else
75 {
76 for (i = rc; *i != NULL; i++)
77 {
78 fprintf(stderr, " * %s: %s\n Written by %s.\n %s\n",
79 (*i)->extension, (*i)->description,
80 (*i)->author, (*i)->url);
81 } /* for */
82 } /* else */
83
84 fprintf(stderr, "\n");
85 } /* output_decoders */
86
87
88 static volatile int done_flag = 0;
89
90 static void audio_callback(void *userdata, Uint8 *stream, int len)
91 {
92 static Uint8 overflow[16384]; /* this is a hack. */
93 static Uint32 overflowBytes = 0;
94 Sound_Sample *sample = *((Sound_Sample **) userdata);
95 Uint32 bw = 0; /* bytes written to stream*/
96 Uint32 rc; /* return code */
97
98 if (overflowBytes > 0)
99 {
100 bw = (overflowBytes < len) ? overflowBytes : len;
101 memcpy(stream, overflow, bw);
102 overflowBytes -= bw;
103 } /* if */
104
105 while ((bw < len) && (!done_flag))
106 {
107 rc = Sound_Decode(sample);
108 if (rc > 0)
109 {
110 if (bw + rc > len)
111 {
112 overflowBytes = (bw + rc) - len;
113 memcpy(overflow,
114 ((Uint8 *) sample->buffer) + (rc - overflowBytes),
115 overflowBytes);
116 rc -= overflowBytes;
117 } /* if */
118
119 memcpy(stream + bw, sample->buffer, rc);
120 bw += rc;
121 } /* if */
122
123 if (sample->flags & SOUND_SAMPLEFLAG_EOF)
124 done_flag = 1;
125
126 else if (sample->flags & SOUND_SAMPLEFLAG_ERROR)
127 {
128 fprintf(stderr, "Error condition in decoding!\n"
129 " problem: [%s].\n", Sound_GetError());
130 done_flag = 1;
131 } /* else if */
132 } /* while */
133
134 assert(bw <= len);
135
136 if (bw < len)
137 memset(stream + bw, '\0', len - bw);
138 } /* audio_callback */
139
140
141 static void output_usage(const char *argv0)
142 {
143 fprintf(stderr, "USAGE: %s <soundFile1> [soundFile2] ... [soundFileN]\n",
144 argv0);
145 } /* output_usage */
146
147
148 int main(int argc, char **argv)
149 {
150 Sound_AudioInfo sound_desired;
151 SDL_AudioSpec sdl_desired;
152 Sound_Sample *sample;
153 int i;
154
155 if (argc < 2)
156 {
157 output_usage(argv[0]);
158 return(42);
159 } /* if */
160
161 for (i = 0; i < argc; i++)
162 {
163 if (strncmp(argv[i], "--", 2) != 0)
164 continue;
165
166 if ( (strcmp(argv[i], "--version") == 0) ||
167 (strcmp(argv[i], "--help") == 0 ) )
168 {
169 output_versions(argv[0]);
170 output_usage(argv[0]);
171 } /* if */
172
173 else if (strcmp(argv[i], "--decoders") == 0)
174 {
175 if (!Sound_Init())
176 {
177 fprintf(stderr, "Sound_Init() failed!\n"
178 " reason: [%s].\n", Sound_GetError());
179 SDL_Quit();
180 return(42);
181 } /* if */
182
183 output_decoders();
184 Sound_Quit();
185 return(0);
186 } /* else if */
187
188 else
189 {
190 fprintf(stderr, "unknown option: \"%s\"\n", argv[i]);
191 return(42);
192 } /* else */
193 } /* for */
194
195 if (SDL_Init(SDL_INIT_AUDIO) == -1)
196 {
197 fprintf(stderr, "SDL_Init(SDL_INIT_AUDIO) failed!\n"
198 " reason: [%s].\n", SDL_GetError());
199 return(42);
200 } /* if */
201
202 if (!Sound_Init())
203 {
204 fprintf(stderr, "Sound_Init() failed!\n"
205 " reason: [%s].\n", Sound_GetError());
206 SDL_Quit();
207 return(42);
208 } /* if */
209
210 sound_desired.rate = 44100;
211 sound_desired.channels = 2;
212 sound_desired.format = AUDIO_S16SYS;
213
214 sdl_desired.freq = 44100;
215 sdl_desired.format = AUDIO_S16SYS;
216 sdl_desired.channels = 2;
217 sdl_desired.samples = 4096;
218 sdl_desired.callback = audio_callback;
219 sdl_desired.userdata = &sample;
220
221 if ( SDL_OpenAudio(&sdl_desired, NULL) < 0 )
222 {
223 fprintf(stderr, "Couldn't open audio device!\n"
224 " reason: [%s].\n", SDL_GetError());
225 Sound_Quit();
226 SDL_Quit();
227 return(42);
228 } /* if */
229
230 for (i = 1; i < argc; i++)
231 {
232 if (strncmp(argv[i], "--", 2) == 0)
233 continue;
234
235 printf("Now playing [%s]...\n", argv[i]);
236
237 sample = Sound_NewSampleFromFile(argv[i], &sound_desired, 4096 * 4);
238 if (!sample)
239 {
240 fprintf(stderr, "Couldn't load \"%s\"!\n"
241 " reason: [%s].\n", argv[i], Sound_GetError());
242 continue;
243 } /* if */
244
245 done_flag = 0;
246 SDL_PauseAudio(0);
247 while (!done_flag)
248 SDL_Delay(10);
249 SDL_PauseAudio(1);
250
251 Sound_FreeSample(sample);
252 } /* for */
253
254 Sound_Quit();
255 SDL_Quit();
256 return(0);
257 } /* main */
258
259 /* end of playsound.c ... */
260