add select Sampling rate

add select Sampling rate

config.example.toml

@@ -85,6 +85,10 @@ saveLyrics = true
 saveCover = true
 coverFormat = "jpg"
 coverSize = "5000x5000"
+# 192000 96000 48000 44100
+alacMax = 192000
+# 2768 2448
+atmosMax = 2768
 # The command to be executed after the song is ripped successfully, passing in the filename parameter.
 # Example: "\"C:\\Program Files\\DAUM\\PotPlayer\\PotPlayerMini64.exe\" \"{filename}\""
 # Pay attention to escaping issues

src/config.py

@@ -39,6 +39,8 @@ class Download(BaseModel):
     saveCover: bool
     coverFormat: str
     coverSize: str
+    alacMax: int
+    atmosMax: int
     afterDownloaded: str
 
 

src/mp4.py

@@ -34,13 +34,13 @@ async def get_available_codecs(m3u8_url: str) -> Tuple[list[str], list[str]]:
 
 
 async def extract_media(m3u8_url: str, codec: str, song_metadata: SongMetadata,
-                        codec_priority: list[str], alternative_codec: bool = False) -> Tuple[str, list[str], str, Optional[int], Optional[int]]:
+                        codec_priority: list[str], alternative_codec: bool = False, alacMax: Optional[int] = None, atmosMax: Optional[int] = None) -> Tuple[str, list[str], str, Optional[int], Optional[int]]:
     parsed_m3u8 = m3u8.loads(await download_m3u8(m3u8_url), uri=m3u8_url)
-    specifyPlaylist = find_best_codec(parsed_m3u8, codec)
+    specifyPlaylist = find_best_codec(parsed_m3u8, codec, alacMax, atmosMax)
     if not specifyPlaylist and alternative_codec:
         logger.warning(f"Codec {codec} of song: {song_metadata.artist} - {song_metadata.title} did not found")
         for a_codec in codec_priority:
-            specifyPlaylist = find_best_codec(parsed_m3u8, a_codec)
+            specifyPlaylist = find_best_codec(parsed_m3u8, a_codec, alacMax, atmosMax)
             if specifyPlaylist:
                 codec = a_codec
                 break

src/rip.py

@@ -77,11 +77,11 @@ async def rip_song(song: Song, auth_params: GlobalAuthParams, codec: str, config
                 logger.info(f"Use m3u8 from device for song: {song_metadata.artist} - {song_metadata.title}")
         if specified_m3u8:
             song_uri, keys, codec_id, bit_depth, sample_rate = await extract_media(
-                specified_m3u8, codec, song_metadata, config.download.codecPriority, config.download.codecAlternative)
+                specified_m3u8, codec, song_metadata, config.download.codecPriority, config.download.codecAlternative, config.download.alacMax, config.download.alacMax)
         else:
             song_uri, keys, codec_id, bit_depth, sample_rate = await extract_media(
                 song_data.attributes.extendedAssetUrls.enhancedHls, codec, song_metadata,
-                config.download.codecPriority, config.download.codecAlternative)
+                config.download.codecPriority, config.download.codecAlternative, config.download.alacMax, config.download.atmosMax)
         if all([bool(bit_depth), bool(sample_rate)]):
             song_metadata.set_bit_depth_and_sample_rate(bit_depth, sample_rate)
             if not force_save and check_song_exists(song_metadata, config.download, codec, playlist):

src/utils.py

@@ -36,12 +36,24 @@ def byte_length(i):
     return (i.bit_length() + 7) // 8
 
 
-def find_best_codec(parsed_m3u8: m3u8.M3U8, codec: str) -> Optional[m3u8.Playlist]:
-    available_medias = [playlist for playlist in parsed_m3u8.playlists
-                        if regex.match(CodecRegex.get_pattern_by_codec(codec), playlist.stream_info.audio)]
+def find_best_codec(parsed_m3u8: m3u8.M3U8, codec: str, alacMax, atmosMax) -> Optional[m3u8.Playlist]:
+    available_medias = []
+    for playlist in parsed_m3u8.playlists:
+        if regex.match(CodecRegex.get_pattern_by_codec(codec), playlist.stream_info.audio):
+            split_str = playlist.stream_info.audio.split('-')
+            if "alac" in playlist.stream_info.audio:
+                if int(split_str[3]) <= alacMax:
+                    available_medias.append(playlist)
+            elif "atmos" in playlist.stream_info.audio:
+                if int(split_str[2]) <= atmosMax:
+                    available_medias.append(playlist)
+            else:
+                available_medias.append(playlist)
+    
     if not available_medias:
         return None
     available_medias.sort(key=lambda x: x.stream_info.average_bandwidth, reverse=True)
+
     return available_medias[0]