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| 1 | +use std::{ |
| 2 | + collections::HashMap, |
| 3 | + sync::{ |
| 4 | + atomic::AtomicUsize, |
| 5 | + mpsc::{self, Sender}, |
| 6 | + Arc, Mutex, Weak, |
| 7 | + }, |
| 8 | + thread, |
| 9 | +}; |
| 10 | + |
| 11 | +use log::warn; |
| 12 | +use mime::Mime; |
| 13 | +use servo_media::{ |
| 14 | + Backend, BackendInit, BackendMsg, ClientContextId, MediaInstance, SupportsMediaType, |
| 15 | +}; |
| 16 | + |
| 17 | +use crate::{player::OhosAVPlayer, registry_scanner::OHOS_REGISTRY_SCANNER}; |
| 18 | +mod player; |
| 19 | +mod registry_scanner; |
| 20 | + |
| 21 | +pub struct OhosBackend { |
| 22 | + instances: Arc<Mutex<HashMap<ClientContextId, Vec<(usize, Weak<Mutex<dyn MediaInstance>>)>>>>, |
| 23 | + next_instance_id: AtomicUsize, |
| 24 | + backend_chan: Arc<Mutex<Sender<BackendMsg>>>, |
| 25 | +} |
| 26 | + |
| 27 | +impl OhosBackend { |
| 28 | + fn media_instance_action( |
| 29 | + &self, |
| 30 | + id: &ClientContextId, |
| 31 | + cb: &dyn Fn(&dyn MediaInstance) -> Result<(), ()>, |
| 32 | + ) { |
| 33 | + let mut instances = self.instances.lock().unwrap(); |
| 34 | + match instances.get_mut(id) { |
| 35 | + Some(vec) => vec.retain(|(_, weak)| { |
| 36 | + if let Some(instance) = weak.upgrade() { |
| 37 | + if cb(&*(instance.lock().unwrap())).is_err() { |
| 38 | + warn!("Error executing media instance action"); |
| 39 | + } |
| 40 | + true |
| 41 | + } else { |
| 42 | + false |
| 43 | + } |
| 44 | + }), |
| 45 | + None => { |
| 46 | + warn!("Trying to exec media action on an unknown client context"); |
| 47 | + } |
| 48 | + } |
| 49 | + } |
| 50 | +} |
| 51 | + |
| 52 | +impl BackendInit for OhosBackend { |
| 53 | + fn init() -> Box<dyn Backend> { |
| 54 | + let instances: Arc< |
| 55 | + Mutex<HashMap<ClientContextId, Vec<(usize, Weak<Mutex<dyn MediaInstance>>)>>>, |
| 56 | + > = Arc::new(Mutex::new(HashMap::new())); |
| 57 | + |
| 58 | + let instances_ = instances.clone(); |
| 59 | + let (backend_chan, recvr) = mpsc::channel(); |
| 60 | + thread::Builder::new() |
| 61 | + .name("OhosBackend ShutdownThread".to_owned()) |
| 62 | + .spawn(move || { |
| 63 | + match recvr.recv().unwrap() { |
| 64 | + BackendMsg::Shutdown(context_id, instance_id) => { |
| 65 | + let mut instances_ = instances_.lock().unwrap(); |
| 66 | + if let Some(vec) = instances_.get_mut(&context_id) { |
| 67 | + vec.retain(|m| m.0 != instance_id); |
| 68 | + if vec.is_empty() { |
| 69 | + instances_.remove(&context_id); |
| 70 | + } |
| 71 | + } |
| 72 | + } |
| 73 | + }; |
| 74 | + }) |
| 75 | + .unwrap(); |
| 76 | + return Box::new(OhosBackend { |
| 77 | + next_instance_id: AtomicUsize::new(0), |
| 78 | + instances, |
| 79 | + backend_chan: Arc::new(Mutex::new(backend_chan)), |
| 80 | + }); |
| 81 | + } |
| 82 | +} |
| 83 | + |
| 84 | +//https://developer.huawei.com/consumer/en/doc/harmonyos-guides/obtain-supported-codecs |
| 85 | +//https://developer.huawei.com/consumer/en/doc/harmonyos-guides/media-kit-intro-V5#supported-formats-and-protocols |
| 86 | + |
| 87 | +impl Backend for OhosBackend { |
| 88 | + fn create_player( |
| 89 | + &self, |
| 90 | + id: &servo_media::ClientContextId, |
| 91 | + stream_type: servo_media_player::StreamType, |
| 92 | + sender: servo_media_player::ipc_channel::ipc::IpcSender<servo_media_player::PlayerEvent>, |
| 93 | + video_renderer: Option< |
| 94 | + std::sync::Arc<std::sync::Mutex<dyn servo_media_player::video::VideoFrameRenderer>>, |
| 95 | + >, |
| 96 | + audio_renderer: Option< |
| 97 | + std::sync::Arc<std::sync::Mutex<dyn servo_media_player::audio::AudioRenderer>>, |
| 98 | + >, |
| 99 | + gl_context: Box<dyn servo_media_player::context::PlayerGLContext>, |
| 100 | + ) -> std::sync::Arc<std::sync::Mutex<dyn servo_media_player::Player>> { |
| 101 | + Arc::new(Mutex::new(OhosAVPlayer::new())) |
| 102 | + } |
| 103 | + |
| 104 | + fn create_audiostream(&self) -> servo_media_streams::MediaStreamId { |
| 105 | + todo!() |
| 106 | + } |
| 107 | + |
| 108 | + fn create_videostream(&self) -> servo_media_streams::MediaStreamId { |
| 109 | + todo!() |
| 110 | + } |
| 111 | + |
| 112 | + fn create_stream_output(&self) -> Box<dyn servo_media_streams::MediaOutput> { |
| 113 | + todo!() |
| 114 | + } |
| 115 | + |
| 116 | + fn create_stream_and_socket( |
| 117 | + &self, |
| 118 | + ty: servo_media_streams::MediaStreamType, |
| 119 | + ) -> ( |
| 120 | + Box<dyn servo_media_streams::MediaSocket>, |
| 121 | + servo_media_streams::MediaStreamId, |
| 122 | + ) { |
| 123 | + todo!() |
| 124 | + } |
| 125 | + |
| 126 | + fn create_audioinput_stream( |
| 127 | + &self, |
| 128 | + set: servo_media_streams::capture::MediaTrackConstraintSet, |
| 129 | + ) -> Option<servo_media_streams::MediaStreamId> { |
| 130 | + todo!() |
| 131 | + } |
| 132 | + |
| 133 | + fn create_videoinput_stream( |
| 134 | + &self, |
| 135 | + set: servo_media_streams::capture::MediaTrackConstraintSet, |
| 136 | + ) -> Option<servo_media_streams::MediaStreamId> { |
| 137 | + todo!() |
| 138 | + } |
| 139 | + |
| 140 | + fn create_audio_context( |
| 141 | + &self, |
| 142 | + id: &servo_media::ClientContextId, |
| 143 | + options: servo_media_audio::context::AudioContextOptions, |
| 144 | + ) -> Result< |
| 145 | + std::sync::Arc<std::sync::Mutex<servo_media_audio::context::AudioContext>>, |
| 146 | + servo_media_audio::sink::AudioSinkError, |
| 147 | + > { |
| 148 | + todo!() |
| 149 | + } |
| 150 | + |
| 151 | + fn create_webrtc( |
| 152 | + &self, |
| 153 | + signaller: Box<dyn servo_media_webrtc::WebRtcSignaller>, |
| 154 | + ) -> servo_media_webrtc::WebRtcController { |
| 155 | + todo!() |
| 156 | + } |
| 157 | + |
| 158 | + fn can_play_type(&self, media_type: &str) -> servo_media::SupportsMediaType { |
| 159 | + if let Ok(mime) = media_type.parse::<Mime>() { |
| 160 | + let mime_type = mime.type_().as_str().to_owned() + "/" + mime.subtype().as_str(); |
| 161 | + let codecs = match mime.get_param("codecs") { |
| 162 | + Some(codecs) => codecs |
| 163 | + .as_str() |
| 164 | + .split(',') |
| 165 | + .map(|codec| codec.trim()) |
| 166 | + .collect(), |
| 167 | + None => vec![], |
| 168 | + }; |
| 169 | + if OHOS_REGISTRY_SCANNER.contains(mime_type.as_str()) { |
| 170 | + if codecs.is_empty() { |
| 171 | + return SupportsMediaType::Maybe; |
| 172 | + } |
| 173 | + } |
| 174 | + } |
| 175 | + SupportsMediaType::No |
| 176 | + } |
| 177 | + |
| 178 | + fn get_device_monitor( |
| 179 | + &self, |
| 180 | + ) -> Box<dyn servo_media_streams::device_monitor::MediaDeviceMonitor> { |
| 181 | + todo!() |
| 182 | + } |
| 183 | + |
| 184 | + fn mute(&self, id: &ClientContextId, val: bool) { |
| 185 | + self.media_instance_action( |
| 186 | + id, |
| 187 | + &(move |instance: &dyn MediaInstance| instance.mute(val)), |
| 188 | + ); |
| 189 | + } |
| 190 | + |
| 191 | + fn resume(&self, id: &ClientContextId) { |
| 192 | + self.media_instance_action(id, &(move |instance: &dyn MediaInstance| instance.resume())); |
| 193 | + } |
| 194 | + |
| 195 | + fn suspend(&self, id: &ClientContextId) { |
| 196 | + self.media_instance_action( |
| 197 | + id, |
| 198 | + &(move |instance: &dyn MediaInstance| instance.suspend()), |
| 199 | + ); |
| 200 | + } |
| 201 | +} |
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