multiplay.c revision c2303eb5497c488db786dcb2b8514db229452536 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17// multiplay is a command-line test app that plays multiple files randomly
18
19#include "SLES/OpenSLES.h"
20#include <assert.h>
21#include <string.h>
22#include <stdlib.h>
23#include <stdio.h>
24#include <unistd.h>
25
26// Describes the state of one player
27
28typedef struct {
29    SLObjectItf mPlayerObject;
30    SLPlayItf mPlayerPlay;
31    SLSeekItf mPlayerSeek;
32    SLVolumeItf mPlayerVolume;
33    SLmillisecond mPlayerDuration;
34} Player;
35
36// Strings corresponding to result codes; FIXME should move to a common test library
37
38static const char *result_strings[] = {
39    "SUCCESS",
40    "PRECONDITIONS_VIOLATED",
41    "PARAMETER_INVALID",
42    "MEMORY_FAILURE",
43    "RESOURCE_ERROR",
44    "RESOURCE_LOST",
45    "IO_ERROR",
46    "BUFFER_INSUFFICIENT",
47    "CONTENT_CORRUPTED",
48    "CONTENT_UNSUPPORTED",
49    "CONTENT_NOT_FOUND",
50    "PERMISSION_DENIED",
51    "FEATURE_UNSUPPORTED",
52    "INTERNAL_ERROR",
53    "UNKNOWN_ERROR",
54    "OPERATION_ABORTED",
55    "CONTROL_LOST"
56};
57
58// Convert result to string; FIXME should move to common test library
59
60static const char *result_to_string(SLresult result)
61{
62    static char buffer[32];
63    if ( /* result >= 0 && */ result < sizeof(result_strings) / sizeof(result_strings[0]))
64        return result_strings[result];
65    sprintf(buffer, "%d", (int) result);
66    return buffer;
67}
68
69// Compare result against expected and exit suddenly if wrong
70
71void check2(SLresult result, int line)
72{
73    if (SL_RESULT_SUCCESS != result) {
74        fprintf(stderr, "error %s at line %d\n", result_to_string(result), line);
75        exit(EXIT_FAILURE);
76    }
77}
78
79// Same as above but automatically adds the source code line number
80
81#define check(result) check2(result, __LINE__)
82
83// Main program
84
85int main(int argc, char **argv)
86{
87    int i;
88    const char *arg;
89    int numPlayers = 0;
90    SLmillibel mixVolumeLevel = 0;
91    for (i = 1; i < argc; ++i) {
92        arg = argv[i];
93        if (arg[0] != '-')
94            break;
95        if (!strncmp(arg, "-n", 2))
96            numPlayers = atoi(&arg[2]);
97        else if (!strncmp(arg, "-v", 2))
98            mixVolumeLevel = atoi(&arg[2]);
99        else
100            fprintf(stderr, "unknown option: %s\n", arg);
101    }
102    int numPathnames = argc - i;
103    if (numPathnames <= 0) {
104        fprintf(stderr, "usage: %s file.wav ...\n", argv[0]);
105        return EXIT_FAILURE;
106    }
107    if (numPlayers <= 0)
108        numPlayers = numPathnames;
109    Player *players = (Player *) malloc(sizeof(Player) * numPlayers);
110    assert(NULL != players);
111    char **pathnames = &argv[i];
112    SLresult result;
113
114    // engine
115    const SLInterfaceID engine_ids[] = {SL_IID_ENGINE};
116    const SLboolean engine_req[] = {SL_BOOLEAN_TRUE};
117    SLObjectItf engineObject;
118    result = slCreateEngine(&engineObject, 0, NULL, 1, engine_ids, engine_req);
119    check(result);
120    result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);
121    check(result);
122    SLEngineItf engineEngine;
123    result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE, &engineEngine);
124    check(result);
125
126    // mixer
127    const SLInterfaceID mix_ids[] = {SL_IID_VOLUME};
128    const SLboolean mix_req[] = {SL_BOOLEAN_TRUE};
129    SLObjectItf mixObject;
130    result = (*engineEngine)->CreateOutputMix(engineEngine, &mixObject, 0, mix_ids, mix_req);
131    check(result);
132    result = (*mixObject)->Realize(mixObject, SL_BOOLEAN_FALSE);
133    check(result);
134#if 0
135    SLVolumeItf mixVolume;
136    result = (*mixObject)->GetInterface(mixObject, SL_IID_VOLUME, &mixVolume);
137    check(result);
138    SLmillibel mixVolumeLevelDefault;
139    result = (*mixVolume)->GetVolumeLevel(mixVolume, &mixVolumeLevelDefault);
140    check(result);
141    printf("default mix volume level = %d\n", mixVolumeLevelDefault);
142#endif
143
144    printf("numPathnames=%d\n", numPathnames);
145    printf("numPlayers=%d\n", numPlayers);
146    Player *p;
147
148    // create all the players
149    for (i = 0; i < numPlayers; ++i) {
150        const SLInterfaceID player_ids[] = {SL_IID_PLAY, SL_IID_VOLUME, SL_IID_SEEK};
151        const SLboolean player_req[] = {SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE};
152        p = &players[i];
153        SLDataLocator_URI locURI = {SL_DATALOCATOR_URI, (SLchar *) pathnames[i % numPathnames]};
154        SLDataFormat_MIME dfMIME = {SL_DATAFORMAT_MIME, NULL, SL_CONTAINERTYPE_UNSPECIFIED};
155        SLDataSource audioSrc = {&locURI, &dfMIME};
156        SLDataLocator_OutputMix locOutputMix = {SL_DATALOCATOR_OUTPUTMIX, mixObject};
157        SLDataSink audioSnk = {&locOutputMix, NULL};
158        result = (*engineEngine)->CreateAudioPlayer(engineEngine, &p->mPlayerObject, &audioSrc,
159            &audioSnk, 3, player_ids, player_req);
160        check(result);
161        result = (*p->mPlayerObject)->Realize(p->mPlayerObject, SL_BOOLEAN_FALSE);
162        check(result);
163        result = (*p->mPlayerObject)->GetInterface(p->mPlayerObject, SL_IID_PLAY, &p->mPlayerPlay);
164        check(result);
165        result = (*p->mPlayerObject)->GetInterface(p->mPlayerObject, SL_IID_VOLUME,
166            &p->mPlayerVolume);
167        check(result);
168        result = (*p->mPlayerObject)->GetInterface(p->mPlayerObject, SL_IID_SEEK, &p->mPlayerSeek);
169        check(result);
170        result = (*p->mPlayerPlay)->GetDuration(p->mPlayerPlay, &p->mPlayerDuration);
171        check(result);
172        printf("player %d duration %d\n", (int) i, (int) p->mPlayerDuration);
173    }
174
175    // now loop randomly doing things to the players
176    for (;;) {
177        SLmillisecond delay = 100 + (rand() & 1023);
178        printf("sleep %u\n", (unsigned) delay);
179        usleep(delay * 1000);
180        i = (rand() & 0x7FFFFFFF) % numPlayers;
181        printf("player %d ", i);
182        p = &players[i];
183        SLuint32 state;
184        result = (*p->mPlayerPlay)->GetPlayState(p->mPlayerPlay, &state);
185        check(result);
186        printf("state = ");
187        switch (state) {
188        case SL_PLAYSTATE_STOPPED:
189            printf("STOPPED");
190            break;
191        case SL_PLAYSTATE_PAUSED:
192            printf("PAUSED");
193            break;
194        case SL_PLAYSTATE_PLAYING:
195            printf("PLAYING");
196            break;
197        default:
198            printf("%u", (unsigned) state);
199            break;
200        }
201        printf("\n");
202        if (state == SL_PLAYSTATE_STOPPED || state == SL_PLAYSTATE_PAUSED) {
203            SLmillibel volumeLevel = -((rand() & 0x7FFFFFFF) % ((SL_MILLIBEL_MIN + 1) / 10));
204            printf("volume %d\n", volumeLevel);
205            result = (*p->mPlayerVolume)->SetVolumeLevel(p->mPlayerVolume, volumeLevel);
206            check(result);
207            result = (*p->mPlayerVolume)->EnableStereoPosition(p->mPlayerVolume, SL_BOOLEAN_TRUE);
208            check(result);
209            SLpermille stereoPosition = ((rand() & 0x7FFFFFFF) % 2001) - 1000;
210            printf("position %d\n", stereoPosition);
211            result = (*p->mPlayerVolume)->SetStereoPosition(p->mPlayerVolume, stereoPosition);
212            check(result);
213            if (state != SL_PLAYSTATE_STOPPED) {
214                result = (*p->mPlayerSeek)->SetPosition(p->mPlayerSeek, 0, SL_SEEKMODE_FAST);
215                check(result);
216            }
217            result = (*p->mPlayerPlay)->SetPlayState(p->mPlayerPlay, SL_PLAYSTATE_PLAYING);
218            check(result);
219        }
220    }
221
222    // FIXME It would be interesting to end the test on some condition (timer, key pressed) so it
223    // also exercises the destruction of the players, output mix and engine after this test has run.
224
225    // return EXIT_SUCCESS;
226}
227