implement can_play_type on ohos backend, fix player interface (#487)

Signed-off-by: rayguo17 <rayguo17@gmail.com>

Author: rayguo17

backends/ohos/Cargo.toml

@@ -16,5 +16,7 @@ servo-media-player = { path = "../../player" }
 servo-media-streams = { path = "../../streams" }
 servo-media-traits = { path = "../../traits" }
 servo-media-webrtc = { path = "../../webrtc" }
+mime = "0.3.13"
+once_cell = "1.18.0"
 log = "0.4"
-ohos-media-sys = { version = "0.0.4" ,features = ["api-13"] }
+ohos-media-sys = { version = "0.0.5" ,features = ["api-21"] }

backends/ohos/lib.rs

@@ -167,10 +167,12 @@ impl Backend for OhosBackend {
                     .collect(),
                 None => vec![],
             };
-            if OHOS_REGISTRY_SCANNER.contains(mime_type.as_str()) {
+
+            if OHOS_REGISTRY_SCANNER.are_mime_and_codecs_supported(&mime_type, &codecs) {
                 if codecs.is_empty() {
                     return SupportsMediaType::Maybe;
                 }
+                return SupportsMediaType::Probably;
             }
         }
         SupportsMediaType::No

backends/ohos/player.rs

@@ -40,6 +40,10 @@ impl Player for OhosAVPlayer {
         todo!()
     }
 
+    fn can_resume(&self) -> bool {
+        todo!()
+    }
+
     fn stop(&self) -> Result<(), servo_media_player::PlayerError> {
         todo!()
     }

backends/ohos/registry_scanner.rs

@@ -0,0 +1,75 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use std::collections::HashMap;
+
+use once_cell::sync::Lazy;
+
+pub static OHOS_REGISTRY_SCANNER: Lazy<OhosRegistryScanner> =
+    Lazy::new(|| OhosRegistryScanner::new());
+
+// Should be a combination of mime/codecs
+// If the type we are matching only contain mime, then we only match the container.
+//
+pub struct OhosRegistryScanner {
+    av_player_supported_mime_codecs_type: HashMap<&'static str, &'static [&'static str]>,
+}
+
+impl OhosRegistryScanner {
+    fn new() -> OhosRegistryScanner {
+        let mut registry_scanner = OhosRegistryScanner {
+            av_player_supported_mime_codecs_type: HashMap::new(),
+        };
+        registry_scanner.initialize_av_player_container_and_codecs();
+        registry_scanner
+    }
+
+    pub fn are_mime_and_codecs_supported(&self, container_type: &str, codecs: &Vec<&str>) -> bool {
+        let Some(supported_codecs) = self
+            .av_player_supported_mime_codecs_type
+            .get(container_type)
+        else {
+            return false;
+        };
+        codecs.iter().all(|codec| {
+            supported_codecs.contains(codec) || {
+                supported_codecs.iter().any(|supported_codec| {
+                    if let Some(stripped) = supported_codec.strip_suffix('*') {
+                        if codec.starts_with(stripped) {
+                            return true;
+                        }
+                    }
+                    false
+                })
+            }
+        })
+    }
+
+    fn initialize_av_player_container_and_codecs(&mut self) {
+        // Video Container
+        self.av_player_supported_mime_codecs_type
+            .insert("video/mp4", &["hev1*", "hvc1*", "aac", "mp3", "avc*"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("video/mkv", &["hev1*", "hvc1*", "aac", "mp3", "avc*"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("video/ts", &["hev1*", "hvc1*", "aac", "mp3", "avc*"]);
+        // Audio Container
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/m4a", &["aac"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/aac", &["aac"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/mp3", &["mp3"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/ogg", &["vorbis"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/wav", &["1", "audio/pcm"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/flac", &["flac"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/amr", &["amr"]);
+        self.av_player_supported_mime_codecs_type
+            .insert("audio/ape", &["ape"]);
+    }
+}