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Side by Side Diff: ppapi/api/ppb_audio.idl

Issue 9421037: Added @code/@endcode and removed .html (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 8 years, 10 months ago
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1 /* Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be 2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file. 3 * found in the LICENSE file.
4 */ 4 */
5 5
6 /** 6 /**
7 * This file defines the <code>PPB_Audio</code> interface, which provides 7 * This file defines the <code>PPB_Audio</code> interface, which provides
8 * realtime stereo audio streaming capabilities. 8 * realtime stereo audio streaming capabilities.
9 */ 9 */
10 10
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26 * The <code>PPB_Audio</code> interface contains pointers to several functions 26 * The <code>PPB_Audio</code> interface contains pointers to several functions
27 * for handling audio resources. Please refer to the 27 * for handling audio resources. Please refer to the
28 * <a href="/chrome/nativeclient/docs/audio.html">Pepper 28 * <a href="/chrome/nativeclient/docs/audio.html">Pepper
29 * Audio API</a> for information on using this interface. 29 * Audio API</a> for information on using this interface.
30 * Please see descriptions for each <code>PPB_Audio</code> and 30 * Please see descriptions for each <code>PPB_Audio</code> and
31 * <code>PPB_AudioConfig</code> function for more details. A C example using 31 * <code>PPB_AudioConfig</code> function for more details. A C example using
32 * <code>PPB_Audio</code> and <code>PPB_AudioConfig</code> follows. 32 * <code>PPB_Audio</code> and <code>PPB_AudioConfig</code> follows.
33 * 33 *
34 * <strong>Example: </strong> 34 * <strong>Example: </strong>
35 * 35 *
36 * <code> 36 * @code
37 * void audio_callback(void* sample_buffer, 37 * void audio_callback(void* sample_buffer,
38 * uint32_t buffer_size_in_bytes, 38 * uint32_t buffer_size_in_bytes,
39 * void* user_data) { 39 * void* user_data) {
40 * ... quickly fill in the buffer with samples and return to caller ... 40 * ... quickly fill in the buffer with samples and return to caller ...
41 * } 41 * }
42 * 42 *
43 * ...Assume the application has cached the audio configuration interface in 43 * ...Assume the application has cached the audio configuration interface in
44 * <code>audio_config_interface</code> and the audio interface in 44 * <code>audio_config_interface</code> and the audio interface in
45 * <code>audio_interface</code>... 45 * <code>audio_interface</code>...
cstefansen 2012/02/21 18:43:37 For my edification: will <code> tags be rendered c
jond 2012/02/24 20:44:27 Those shouldn't be there. Removing them. On 2012/
46 * 46 *
47 * uint32_t count = audio_config_interface->RecommendSampleFrameCount( 47 * uint32_t count = audio_config_interface->RecommendSampleFrameCount(
48 * PP_AUDIOSAMPLERATE_44100, 4096); 48 * PP_AUDIOSAMPLERATE_44100, 4096);
49 * PP_Resource pp_audio_config = audio_config_interface->CreateStereo16Bit( 49 * PP_Resource pp_audio_config = audio_config_interface->CreateStereo16Bit(
50 * pp_instance, PP_AUDIOSAMPLERATE_44100, count); 50 * pp_instance, PP_AUDIOSAMPLERATE_44100, count);
51 * PP_Resource pp_audio = audio_interface->Create(pp_instance, pp_audio_config, 51 * PP_Resource pp_audio = audio_interface->Create(pp_instance, pp_audio_config,
52 * audio_callback, NULL); 52 * audio_callback, NULL);
53 * audio_interface->StartPlayback(pp_audio); 53 * audio_interface->StartPlayback(pp_audio);
54 * 54 *
55 * ...audio_callback() will now be periodically invoked on a separate thread... 55 * ...audio_callback() will now be periodically invoked on a separate thread...
56 * </code> 56 * @endcode
57 */ 57 */
58 interface PPB_Audio { 58 interface PPB_Audio {
59 /** 59 /**
60 * Create() creates an audio resource. No sound will be heard until 60 * Create() creates an audio resource. No sound will be heard until
61 * StartPlayback() is called. The callback is called with the buffer address 61 * StartPlayback() is called. The callback is called with the buffer address
62 * and given user data whenever the buffer needs to be filled. From within the 62 * and given user data whenever the buffer needs to be filled. From within the
63 * callback, you should not call <code>PPB_Audio</code> functions. The 63 * callback, you should not call <code>PPB_Audio</code> functions. The
64 * callback will be called on a different thread than the one which created 64 * callback will be called on a different thread than the one which created
65 * the interface. For performance-critical applications (i.e. low-latency 65 * the interface. For performance-critical applications (i.e. low-latency
66 * audio), the callback should avoid blocking or calling functions that can 66 * audio), the callback should avoid blocking or calling functions that can
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136 * @return A <code>PP_Bool</code> containing <code>PP_TRUE</code> if 136 * @return A <code>PP_Bool</code> containing <code>PP_TRUE</code> if
137 * successful, otherwise <code>PP_FALSE</code>. Also returns 137 * successful, otherwise <code>PP_FALSE</code>. Also returns
138 * <code>PP_TRUE</code> (and is a no-op) if called while playback is already 138 * <code>PP_TRUE</code> (and is a no-op) if called while playback is already
139 * stopped. If a callback is in progress, StopPlayback() will block until the 139 * stopped. If a callback is in progress, StopPlayback() will block until the
140 * callback completes. 140 * callback completes.
141 */ 141 */
142 PP_Bool StopPlayback( 142 PP_Bool StopPlayback(
143 [in] PP_Resource audio); 143 [in] PP_Resource audio);
144 }; 144 };
145 145
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