nn::snd::CTR::GetDroppedSoundFrameCount Function

s32 GetDroppedSoundFrameCount();

None.

Returns the number of dropped sound frames.

Gets the number of dropped sound frames.

When processing within a sound thread does not occur quickly (when the processing within a sound thread does not complete within an approximately 5 millisecond cycle), there is the possibility of sound skipping as a result of processing drops. This function can be used to confirm the total number of frames where processing drops occurred.

The processing drop counter is initialized for the sound thread when the nn::snd::CTR::SendParameterToDsp function is first called. The counter value returns the total number of processing dropped frames. The counter value can also be initialized by the nn::snd::CTR::ClearDroppedSoundFrameCount function.

The processing drop counter is incremented under the following conditions.

• The sound thread does not exist
• Processing within the sound thread is not occurring fast enough and synchronous processing cannot keep pace.
• The DSP processing load exceeded 100 percent, and processing cannot keep pace.

The counter is 16 bit, so unless you regularly initialize it, you will not get an accurate value from it.

2010/10/21

Initial version.