git.sesse.net Git - nageru/blob - input_mapping.h

   1 #ifndef _INPUT_MAPPING_H
   2 #define _INPUT_MAPPING_H 1
   3
   4 #include <stdint.h>
   5 #include <string>
   6 #include <vector>
   7
   8 enum class InputSourceType { SILENCE, CAPTURE_CARD, ALSA_INPUT };
   9 struct DeviceSpec {
  10         InputSourceType type;
  11         unsigned index;
  12
  13         bool operator== (const DeviceSpec &other) const {
  14                 return type == other.type && index == other.index;
  15         }
  16
  17         bool operator< (const DeviceSpec &other) const {
  18                 if (type != other.type)
  19                         return type < other.type;
  20                 return index < other.index;
  21         }
  22 };
  23 struct DeviceInfo {
  24         std::string display_name;
  25         unsigned num_channels;
  26         std::string alsa_name, alsa_info, alsa_address;  // ALSA devices only, obviously.
  27 };
  28
  29 static inline uint64_t DeviceSpec_to_key(const DeviceSpec &device_spec)
  30 {
  31         return (uint64_t(device_spec.type) << 32) | device_spec.index;
  32 }
  33
  34 static inline DeviceSpec key_to_DeviceSpec(uint64_t key)
  35 {
  36         return DeviceSpec{ InputSourceType(key >> 32), unsigned(key & 0xffffffff) };
  37 }
  38
  39 struct InputMapping {
  40         struct Bus {
  41                 std::string name;
  42                 DeviceSpec device;
  43                 int source_channel[2] { -1, -1 };  // Left and right. -1 = none.
  44         };
  45
  46         std::vector<Bus> buses;
  47 };
  48
  49 #endif  // !defined(_INPUT_MAPPING_H)