| Lift freeq's AV media plane out of sleek 90f8b89 nandi 20d ago | 1 | use super::{ |
| 2 | utils::{ |
| 3 | get_context, get_property, get_system_property, get_system_service, with_attached, JNIEnv, |
| 4 | JObject, JResult, |
| 5 | }, |
| 6 | AudioManager, Context, |
| 7 | }; |
| 8 | |
| 9 | impl AudioManager { |
| 10 | /// Get the frames per buffer using Android Java API |
| 11 | pub fn get_frames_per_buffer() -> Result<i32, String> { |
| 12 | let context = get_context(); |
| 13 | |
| 14 | with_attached(context, |env, context| get_frames_per_buffer(env, &context)) |
| 15 | .map_err(|error| error.to_string()) |
| 16 | } |
| 17 | |
| 18 | /// Get the AAudio mixer burst count from system property |
| 19 | pub fn get_mixer_bursts() -> Result<i32, String> { |
| 20 | let context = get_context(); |
| 21 | |
| 22 | with_attached(context, |env, _context| get_mixer_bursts(env)) |
| 23 | .map_err(|error| error.to_string()) |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | fn get_frames_per_buffer<'j>(env: &mut JNIEnv<'j>, context: &JObject<'j>) -> JResult<i32> { |
| 28 | let audio_manager = get_system_service(env, context, Context::AUDIO_SERVICE)?; |
| 29 | |
| 30 | let frames_per_buffer = get_property( |
| 31 | env, |
| 32 | &audio_manager, |
| 33 | AudioManager::PROPERTY_OUTPUT_FRAMES_PER_BUFFER, |
| 34 | )?; |
| 35 | |
| 36 | let frames_per_buffer_string = String::from(env.get_string(&frames_per_buffer)?); |
| 37 | |
| 38 | // TODO: Use jni::errors::Error::ParseFailed instead of jni::errors::Error::JniCall once jni > v0.21.1 is released |
| 39 | frames_per_buffer_string |
| 40 | .parse::<i32>() |
| 41 | .map_err(|_| jni::errors::Error::JniCall(jni::errors::JniError::Unknown)) |
| 42 | } |
| 43 | |
| 44 | fn get_mixer_bursts<'j>(env: &mut JNIEnv<'j>) -> JResult<i32> { |
| 45 | let mixer_bursts = get_system_property(env, "aaudio.mixer_bursts", "2")?; |
| 46 | |
| 47 | let mixer_bursts_string = String::from(env.get_string(&mixer_bursts)?); |
| 48 | |
| 49 | // TODO: Use jni::errors::Error::ParseFailed instead of jni::errors::Error::JniCall once jni > v0.21.1 is released |
| 50 | mixer_bursts_string |
| 51 | .parse::<i32>() |
| 52 | .map_err(|_| jni::errors::Error::JniCall(jni::errors::JniError::Unknown)) |
| 53 | } |