slesTestPlayUri.cpp 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/*
18 * Copyright (c) 2009 The Khronos Group Inc.
19 *
20 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
21 * software and /or associated documentation files (the "Materials "), to deal in the
22 * Materials without restriction, including without limitation the rights to use, copy,
23 * modify, merge, publish, distribute, sublicense, and/or sell copies of the Materials,
24 * and to permit persons to whom the Materials are furnished to do so, subject to
25 * the following conditions:
26 *
27 * The above copyright notice and this permission notice shall be included
28 * in all copies or substantial portions of the Materials.
29 *
30 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
31 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
32 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
33 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
34 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
35 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
36 * CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS IN THE
37 * MATERIALS.
38 */
39
40#include <stdlib.h>
41#include <stdio.h>
42//#include <string.h>
43#include <unistd.h>
44//#include <sys/time.h>
45
46#include "SLES/OpenSLES.h"
47
48
49#define MAX_NUMBER_INTERFACES 2
50
51//-----------------------------------------------------------------
52//* Exits the application if an error is encountered */
53#define CheckErr(x) ExitOnErrorFunc(x,__LINE__)
54
55void ExitOnErrorFunc( SLresult result , int line)
56{
57    if (SL_RESULT_SUCCESS != result) {
58        fprintf(stderr, "%lu error code encountered at line %d, exiting\n", result, line);
59        exit(EXIT_FAILURE);
60    }
61}
62
63//-----------------------------------------------------------------
64/* PrefetchStatusItf callback for an audio player */
65void PrefetchEventCallback( SLPrefetchStatusItf caller,  void *pContext, SLuint32 event)
66{
67    SLpermille level = 0;
68    (*caller)->GetFillLevel(caller, &level);
69    SLuint32 status;
70    //fprintf(stdout, "PrefetchEventCallback: received event %lu\n", event);
71    (*caller)->GetPrefetchStatus(caller, &status);
72    if ((event & (SL_PREFETCHEVENT_STATUSCHANGE|SL_PREFETCHEVENT_FILLLEVELCHANGE))
73            && (level == 0) && (status == SL_PREFETCHSTATUS_UNDERFLOW)) {
74        fprintf(stdout, "PrefetchEventCallback: Error while prefetching data, exiting\n");
75        //exit(EXIT_FAILURE);
76    }
77    if (event & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
78        fprintf(stdout, "PrefetchEventCallback: Buffer fill level is = %d\n", level);
79    }
80    if (event & SL_PREFETCHEVENT_STATUSCHANGE) {
81        fprintf(stdout, "PrefetchEventCallback: Prefetch Status is = %lu\n", status);
82    }
83
84}
85
86
87//-----------------------------------------------------------------
88
89/* Play some music from a URI  */
90void TestPlayUri( SLObjectItf sl, const char* path)
91{
92    SLEngineItf                EngineItf;
93
94    SLint32                    numOutputs = 0;
95    SLuint32                   deviceID = 0;
96
97    SLresult                   res;
98
99    SLDataSource               audioSource;
100    SLDataLocator_URI          uri;
101    SLDataFormat_MIME          mime;
102
103    SLDataSink                 audioSink;
104    SLDataLocator_OutputMix    locator_outputmix;
105
106    SLObjectItf                player;
107    SLPlayItf                  playItf;
108    SLVolumeItf                volItf;
109    SLPrefetchStatusItf        prefetchItf;
110
111    SLObjectItf                OutputMix;
112
113    SLboolean required[MAX_NUMBER_INTERFACES];
114    SLInterfaceID iidArray[MAX_NUMBER_INTERFACES];
115
116    /* Get the SL Engine Interface which is implicit */
117    res = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf);
118    CheckErr(res);
119
120    /* Initialize arrays required[] and iidArray[] */
121    for (int i=0 ; i < MAX_NUMBER_INTERFACES ; i++) {
122        required[i] = SL_BOOLEAN_FALSE;
123        iidArray[i] = SL_IID_NULL;
124    }
125
126    // Set arrays required[] and iidArray[] for VOLUME and PREFETCHSTATUS interface
127    required[0] = SL_BOOLEAN_TRUE;
128    iidArray[0] = SL_IID_VOLUME;
129    required[1] = SL_BOOLEAN_TRUE;
130    iidArray[1] = SL_IID_PREFETCHSTATUS;
131    // Create Output Mix object to be used by player
132    res = (*EngineItf)->CreateOutputMix(EngineItf, &OutputMix, 0,
133            iidArray, required); CheckErr(res);
134
135    // Realizing the Output Mix object in synchronous mode.
136    res = (*OutputMix)->Realize(OutputMix, SL_BOOLEAN_FALSE);
137    CheckErr(res);
138
139    /* Setup the data source structure for the URI */
140    uri.locatorType = SL_DATALOCATOR_URI;
141    uri.URI         =  (SLchar*) path;
142    mime.formatType    = SL_DATAFORMAT_MIME;
143    mime.mimeType      = (SLchar*)NULL;
144    mime.containerType = SL_CONTAINERTYPE_UNSPECIFIED;
145
146    audioSource.pFormat      = (void *)&mime;
147    audioSource.pLocator     = (void *)&uri;
148
149    /* Setup the data sink structure */
150    locator_outputmix.locatorType   = SL_DATALOCATOR_OUTPUTMIX;
151    locator_outputmix.outputMix    = OutputMix;
152    audioSink.pLocator           = (void *)&locator_outputmix;
153    audioSink.pFormat            = NULL;
154
155    /* Create the audio player */
156    res = (*EngineItf)->CreateAudioPlayer(EngineItf, &player, &audioSource, &audioSink,
157            MAX_NUMBER_INTERFACES, iidArray, required); CheckErr(res);
158
159    /* Realizing the player in synchronous mode. */
160    res = (*player)->Realize(player, SL_BOOLEAN_FALSE); CheckErr(res);
161    fprintf(stdout, "URI example: after Realize\n");
162
163    /* Get interfaces */
164    res = (*player)->GetInterface(player, SL_IID_PLAY, (void*)&playItf);
165    CheckErr(res);
166
167    res = (*player)->GetInterface(player, SL_IID_VOLUME,  (void*)&volItf);
168    CheckErr(res);
169
170    res = (*player)->GetInterface(player, SL_IID_PREFETCHSTATUS, (void*)&prefetchItf);
171    CheckErr(res);
172    res = (*prefetchItf)->RegisterCallback(prefetchItf, PrefetchEventCallback, &prefetchItf);
173    CheckErr(res);
174    res = (*prefetchItf)->SetCallbackEventsMask(prefetchItf,
175            SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
176    CheckErr(res);
177
178    /* Configure fill level updates every 5 percent */
179    (*prefetchItf)->SetFillUpdatePeriod(prefetchItf, 50);
180
181    /* Display duration */
182    SLmillisecond durationInMsec = SL_TIME_UNKNOWN;
183    res = (*playItf)->GetDuration(playItf, &durationInMsec);
184    CheckErr(res);
185    if (durationInMsec == SL_TIME_UNKNOWN) {
186        fprintf(stdout, "Content duration is unknown (before starting to prefetch)\n");
187    } else {
188        fprintf(stdout, "Content duration is %lu ms (before starting to prefetch)\n",
189                durationInMsec);
190    }
191
192    /* Set the player volume */
193    res = (*volItf)->SetVolumeLevel( volItf, -300);
194    CheckErr(res);
195
196    /* Play the URI */
197    /*     first cause the player to prefetch the data */
198    fprintf(stdout, "Before set to PAUSED\n");
199    res = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PAUSED );
200    fprintf(stdout, "After set to PAUSED\n");
201    CheckErr(res);
202
203    /*     wait until there's data to play */
204    //SLpermille fillLevel = 0;
205    SLuint32 prefetchStatus = SL_PREFETCHSTATUS_UNDERFLOW;
206    SLuint32 timeOutIndex = 100; // 10s
207    while ((prefetchStatus != SL_PREFETCHSTATUS_SUFFICIENTDATA) && (timeOutIndex > 0)) {
208        usleep(100 * 1000);
209        (*prefetchItf)->GetPrefetchStatus(prefetchItf, &prefetchStatus);
210        timeOutIndex--;
211    }
212
213    if (timeOutIndex == 0) {
214        fprintf(stderr, "We\'re done waiting, failed to prefetch data in time, exiting\n");
215        goto destroyRes;
216    }
217
218    /* Display duration again, */
219    res = (*playItf)->GetDuration(playItf, &durationInMsec);
220    CheckErr(res);
221    if (durationInMsec == SL_TIME_UNKNOWN) {
222        fprintf(stdout, "Content duration is unknown (after prefetch completed)\n");
223    } else {
224        fprintf(stdout, "Content duration is %lu ms (after prefetch completed)\n", durationInMsec);
225    }
226
227    fprintf(stdout, "URI example: starting to play\n");
228    res = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PLAYING );
229    CheckErr(res);
230
231    /* Wait as long as the duration of the content before stopping */
232    usleep(durationInMsec * 1000);
233
234    /* Make sure player is stopped */
235    fprintf(stdout, "URI example: stopping playback\n");
236    res = (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_STOPPED);
237    CheckErr(res);
238
239destroyRes:
240
241    /* Destroy the player */
242    (*player)->Destroy(player);
243
244    /* Destroy Output Mix object */
245    (*OutputMix)->Destroy(OutputMix);
246}
247
248//-----------------------------------------------------------------
249int main(int argc, char* const argv[])
250{
251    SLresult    res;
252    SLObjectItf sl;
253
254    fprintf(stdout, "OpenSL ES test %s: exercises SLPlayItf, SLVolumeItf ", argv[0]);
255    fprintf(stdout, "and AudioPlayer with SLDataLocator_URI source / OutputMix sink\n");
256    fprintf(stdout, "Plays a sound and stops after its reported duration\n\n");
257
258    if (argc == 1) {
259        fprintf(stdout, "Usage: %s path \n\t%s url\n", argv[0], argv[0]);
260        fprintf(stdout, "Example: \"%s /sdcard/my.mp3\"  or \"%s file:///sdcard/my.mp3\"\n",
261                argv[0], argv[0]);
262        exit(EXIT_FAILURE);
263    }
264
265    SLEngineOption EngineOption[] = {
266            {(SLuint32) SL_ENGINEOPTION_THREADSAFE,
267            (SLuint32) SL_BOOLEAN_TRUE}};
268
269    res = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL);
270    CheckErr(res);
271    /* Realizing the SL Engine in synchronous mode. */
272    res = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
273    CheckErr(res);
274
275    TestPlayUri(sl, argv[1]);
276
277    /* Shutdown OpenSL ES */
278    (*sl)->Destroy(sl);
279
280    return EXIT_SUCCESS;
281}
282