feat: add ffmpeg and flac installation to Dockerfiles

- Updated `Dockerfile` to install `ffmpeg` and `flac` along with existing packages.
- Updated `Dockerfile-slim` to install `ffmpeg` and `flac` along with existing packages.
- Modified `any_provider.py` to change how providers are handled when a model is specified, allowing for a submodel to be extracted and checked against the provider's attributes.
- Adjusted `retry_provider.py` to ensure the alias for the model is correctly set based on the provider's model aliases, improving clarity in debug logging.

docker/Dockerfile

@@ -19,7 +19,7 @@ RUN if [ "$G4F_VERSION" = "" ] ; then \
 RUN apt-get -qqy update \
   && apt-get -qqy upgrade \
   && apt-get -qyy autoremove \
-  && apt-get -qqy install python3 python-is-python3 pip \
+  && apt-get -qqy install python3 python-is-python3 pip ffmpeg flac \
   && apt-get -qyy remove openjdk-11-jre-headless \
   && apt-get -qyy autoremove \
   && apt-get -qyy clean \

docker/Dockerfile-slim

@@ -12,7 +12,7 @@ ENV G4F_USER_ID $G4F_USER_ID
 ENV G4F_DIR /app
 
 RUN apt-get update && apt-get upgrade -y \
-  && apt-get install -y git cron \
+  && apt-get install -y git cron ffmpeg flac \
 # Add user and user group
   && groupadd -g $G4F_USER_ID $G4F_USER \
   && useradd -rm -G sudo -u $G4F_USER_ID -g $G4F_USER_ID $G4F_USER \

g4f/providers/any_provider.py

@@ -280,12 +280,14 @@ class AnyProvider(AsyncGeneratorProvider, ProviderModelMixin):
     ) -> AsyncResult:
         cls.get_models(ignored=ignored)
         providers = []
-        
         if model and ":" in model:
-            providers = model.split(":")
+            provider, submodel = model.split(":", maxsplit=1)
-            model = providers.pop()
+            if hasattr(Provider, provider):
-            providers = [getattr(Provider, provider) for provider in providers]
+                provider = getattr(Provider, provider)
-        elif not model or model == cls.default_model:
+                if provider.working and provider.get_parent() not in ignored:
+                    providers.append(provider)
+                    model = submodel
+        if not model or model == cls.default_model:
             model = ""
             has_image = False
             has_audio = False

g4f/providers/retry_provider.py

@@ -53,10 +53,12 @@ class IterListProvider(BaseRetryProvider):
 
         for provider in self.get_providers(stream and not ignore_stream, ignored):
             self.last_provider = provider
+            alias = model
             if not model:
-                model = getattr(provider, "default_model", None)
+                alias = getattr(provider, "default_model", None)
-            alias = provider.model_aliases.get(model, model) if hasattr(provider, "model_aliases") else model
+            if hasattr(provider, "model_aliases"):
-            debug.log(f"Using {provider.__name__} provider with model {alias}")
+                alias = provider.model_aliases.get(model, model)
+            debug.log(f"Using provider: {provider.__name__} with model: {alias}")
             yield ProviderInfo(**provider.get_dict(), model=alias)
             extra_body = kwargs.copy()
             if isinstance(api_key, dict):
@@ -97,11 +99,13 @@ class IterListProvider(BaseRetryProvider):
 
         for provider in self.get_providers(stream and not ignore_stream, ignored):
             self.last_provider = provider
+            alias = model
             if not model:
-                model = getattr(provider, "default_model", None)
+                alias = getattr(provider, "default_model", None)
-            model = provider.model_aliases.get(model, model) if hasattr(provider, "model_aliases") else model
+            if hasattr(provider, "model_aliases"):
-            debug.log(f"Using {provider.__name__} provider with model {model}")
+                alias = provider.model_aliases.get(model, model)
-            yield ProviderInfo(**provider.get_dict(), model=model)
+            debug.log(f"Using {provider.__name__} provider with model {alias}")
+            yield ProviderInfo(**provider.get_dict(), model=alias)
             extra_body = kwargs.copy()
             if isinstance(api_key, dict):
                 api_key = api_key.get(provider.get_parent())