media/libcubeb/src/cubeb-internal.h

   1 /*
   2  * Copyright © 2013 Mozilla Foundation
   3  *
   4  * This program is made available under an ISC-style license.  See the
   5  * accompanying file LICENSE for details.
   6  */
   7 #if !defined(CUBEB_INTERNAL_0eb56756_4e20_4404_a76d_42bf88cd15a5)
   8 #define CUBEB_INTERNAL_0eb56756_4e20_4404_a76d_42bf88cd15a5
   9
  10 #include "cubeb/cubeb.h"
  11 #include "cubeb_assert.h"
  12 #include "cubeb_log.h"
  13 #include <stdio.h>
  14 #include <string.h>
  15
  16 #ifdef __clang__
  17 #ifndef CLANG_ANALYZER_NORETURN
  18 #if __has_feature(attribute_analyzer_noreturn)
  19 #define CLANG_ANALYZER_NORETURN __attribute__((analyzer_noreturn))
  20 #else
  21 #define CLANG_ANALYZER_NORETURN
  22 #endif // ifndef CLANG_ANALYZER_NORETURN
  23 #endif // __has_feature(attribute_analyzer_noreturn)
  24 #else  // __clang__
  25 #define CLANG_ANALYZER_NORETURN
  26 #endif
  27
  28 #if defined(__cplusplus)
  29 extern "C" {
  30 #endif
  31
  32 #if defined(__cplusplus)
  33 }
  34 #endif
  35
  36 struct cubeb_ops {
  37   int (*init)(cubeb ** context, char const * context_name);
  38   char const * (*get_backend_id)(cubeb * context);
  39   int (*get_max_channel_count)(cubeb * context, uint32_t * max_channels);
  40   int (*get_min_latency)(cubeb * context, cubeb_stream_params params,
  41                          uint32_t * latency_ms);
  42   int (*get_preferred_sample_rate)(cubeb * context, uint32_t * rate);
  43   int (*get_supported_input_processing_params)(
  44       cubeb * context, cubeb_input_processing_params * params);
  45   int (*enumerate_devices)(cubeb * context, cubeb_device_type type,
  46                            cubeb_device_collection * collection);
  47   int (*device_collection_destroy)(cubeb * context,
  48                                    cubeb_device_collection * collection);
  49   void (*destroy)(cubeb * context);
  50   int (*stream_init)(cubeb * context, cubeb_stream ** stream,
  51                      char const * stream_name, cubeb_devid input_device,
  52                      cubeb_stream_params * input_stream_params,
  53                      cubeb_devid output_device,
  54                      cubeb_stream_params * output_stream_params,
  55                      unsigned int latency, cubeb_data_callback data_callback,
  56                      cubeb_state_callback state_callback, void * user_ptr);
  57   void (*stream_destroy)(cubeb_stream * stream);
  58   int (*stream_start)(cubeb_stream * stream);
  59   int (*stream_stop)(cubeb_stream * stream);
  60   int (*stream_get_position)(cubeb_stream * stream, uint64_t * position);
  61   int (*stream_get_latency)(cubeb_stream * stream, uint32_t * latency);
  62   int (*stream_get_input_latency)(cubeb_stream * stream, uint32_t * latency);
  63   int (*stream_set_volume)(cubeb_stream * stream, float volumes);
  64   int (*stream_set_name)(cubeb_stream * stream, char const * stream_name);
  65   int (*stream_get_current_device)(cubeb_stream * stream,
  66                                    cubeb_device ** const device);
  67   int (*stream_set_input_mute)(cubeb_stream * stream, int mute);
  68   int (*stream_set_input_processing_params)(
  69       cubeb_stream * stream, cubeb_input_processing_params params);
  70   int (*stream_device_destroy)(cubeb_stream * stream, cubeb_device * device);
  71   int (*stream_register_device_changed_callback)(
  72       cubeb_stream * stream,
  73       cubeb_device_changed_callback device_changed_callback);
  74   int (*register_device_collection_changed)(
  75       cubeb * context, cubeb_device_type devtype,
  76       cubeb_device_collection_changed_callback callback, void * user_ptr);
  77 };
  78
  79 #endif /* CUBEB_INTERNAL_0eb56756_4e20_4404_a76d_42bf88cd15a5 */