diff options
Diffstat (limited to 'services/audioflinger/AudioMixer.h')
| -rw-r--r-- | services/audioflinger/AudioMixer.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/services/audioflinger/AudioMixer.h b/services/audioflinger/AudioMixer.h index 09e63a6..4a39f88 100644 --- a/services/audioflinger/AudioMixer.h +++ b/services/audioflinger/AudioMixer.h @@ -104,7 +104,10 @@ public: // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS // Allocate a track name. Returns new track name if successful, -1 on failure. - int getTrackName(audio_channel_mask_t channelMask, int sessionId); + // The failure could be because of an invalid channelMask or format, or that + // the track capacity of the mixer is exceeded. + int getTrackName(audio_channel_mask_t channelMask, + audio_format_t format, int sessionId); // Free an allocated track by name void deleteTrackName(int name); @@ -122,6 +125,10 @@ public: size_t getUnreleasedFrames(int name) const; + static inline bool isValidPcmTrackFormat(audio_format_t format) { + return format == AUDIO_FORMAT_PCM_16_BIT; + } + private: enum { @@ -198,9 +205,8 @@ private: int32_t sessionId; - audio_format_t mMixerFormat; // at this time: AUDIO_FORMAT_PCM_(FLOAT|16_BIT) - - int32_t padding[1]; + audio_format_t mMixerFormat; // output mix format: AUDIO_FORMAT_PCM_(FLOAT|16_BIT) + audio_format_t mFormat; // input track format // 16-byte boundary |