Index: ppapi/c/dev/ppb_audio_config_dev.h |
=================================================================== |
--- ppapi/c/dev/ppb_audio_config_dev.h (revision 71865) |
+++ ppapi/c/dev/ppb_audio_config_dev.h (working copy) |
@@ -1,97 +0,0 @@ |
-/* Copyright (c) 2010 The Chromium Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style license that can be |
- * found in the LICENSE file. |
- */ |
-#ifndef PPAPI_C_DEV_PPB_AUDIO_CONFIG_DEV_H_ |
-#define PPAPI_C_DEV_PPB_AUDIO_CONFIG_DEV_H_ |
- |
-#include "ppapi/c/pp_bool.h" |
-#include "ppapi/c/pp_instance.h" |
-#include "ppapi/c/pp_macros.h" |
-#include "ppapi/c/pp_resource.h" |
-#include "ppapi/c/pp_stdint.h" |
- |
-#define PPB_AUDIO_CONFIG_DEV_INTERFACE "PPB_AudioConfig(Dev);0.4" |
- |
-enum { |
- PP_AUDIOMINSAMPLEFRAMECOUNT = 64, |
- PP_AUDIOMAXSAMPLEFRAMECOUNT = 32768 |
-}; |
- |
-typedef enum { |
- PP_AUDIOSAMPLERATE_NONE = 0, |
- PP_AUDIOSAMPLERATE_44100 = 44100, |
- PP_AUDIOSAMPLERATE_48000 = 48000 |
-} PP_AudioSampleRate_Dev; |
-PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_AudioSampleRate_Dev, 4); |
- |
-/** |
- * Audio configuration. This base configuration interface supports only stereo |
- * 16bit output. This class is not mutable, therefore it is okay to access |
- * instances from different threads. |
- */ |
-struct PPB_AudioConfig_Dev { |
- /** |
- * Create a 16 bit stereo config with the given sample rate. We guarantee |
- * that PP_AUDIOSAMPLERATE_44100 and PP_AUDIOSAMPLERATE_48000 sample rates |
- * are supported. The |sample_frame_count| should be the result of calling |
- * RecommendSampleFrameCount. If the sample frame count or bit rate aren't |
- * supported, this function will fail and return a null resource. |
- * |
- * A single sample frame on a stereo device means one value for the left |
- * channel and one value for the right channel. |
- * |
- * Buffer layout for a stereo int16 configuration: |
- * int16_t *buffer16; |
- * buffer16[0] is the first left channel sample |
- * buffer16[1] is the first right channel sample |
- * buffer16[2] is the second left channel sample |
- * buffer16[3] is the second right channel sample |
- * ... |
- * buffer16[2 * (sample_frame_count - 1)] is the last left channel sample |
- * buffer16[2 * (sample_frame_count - 1) + 1] is the last right channel sample |
- * Data will always be in the native endian format of the platform. |
- */ |
- PP_Resource (*CreateStereo16Bit)(PP_Instance instance, |
- PP_AudioSampleRate_Dev sample_rate, |
- uint32_t sample_frame_count); |
- |
- /* |
- * Returns a supported sample frame count closest to the given requested |
- * count. The sample frame count determines the overall latency of audio. |
- * Since one "frame" is always buffered in advance, smaller frame counts |
- * will yield lower latency, but higher CPU utilization. |
- * |
- * Supported sample frame counts will vary by hardware and system (consider |
- * that the local system might be anywhere from a cell phone or a high-end |
- * audio workstation). Sample counts less than PP_AUDIOMINSAMPLEFRAMECOUNT |
- * and greater than PP_AUDIOMAXSAMPLEFRAMECOUNT are never supported on any |
- * system, but values in between aren't necessarily valid. This function |
- * will return a supported count closest to the requested value. |
- * |
- * If you pass 0 as the requested sample count, the recommended sample for |
- * the local system is returned. |
- */ |
- uint32_t (*RecommendSampleFrameCount)(uint32_t requested_sample_frame_count); |
- |
- /** |
- * Returns true if the given resource is an AudioConfig object. |
- */ |
- PP_Bool (*IsAudioConfig)(PP_Resource resource); |
- |
- /** |
- * Returns the sample rate for the given AudioConfig resource. If the |
- * resource is invalid, this will return PP_AUDIOSAMPLERATE_NONE. |
- */ |
- PP_AudioSampleRate_Dev (*GetSampleRate)(PP_Resource config); |
- |
- /** |
- * Returns the sample frame count for the given AudioConfig resource. If the |
- * resource is invalid, this will return 0. See RecommendSampleFrameCount for |
- * more on sample frame counts. |
- */ |
- uint32_t (*GetSampleFrameCount)(PP_Resource config); |
-}; |
- |
-#endif /* PPAPI_C_DEV_PPB_AUDIO_CONFIG_DEV_H_ */ |
- |