Speed up ffmpeg setup (home-assistant#113496)

* Speed up ffmpeg setup

Only check for old versions of ffmpeg if is_official_image
is False

* Speed up ffmpeg setup

Only check for old versions of ffmpeg if is_official_image
is False

* Speed up ffmpeg setup

Only check for old versions of ffmpeg if is_official_image
is False

* Speed up ffmpeg setup

Only check for old versions of ffmpeg if is_official_image
is False

* Speed up ffmpeg setup

Only check for old versions of ffmpeg if is_official_image
is False

* Speed up ffmpeg setup

Only check for old versions of ffmpeg if is_official_image
is False

* adjust

* adjust

* twea

* Update homeassistant/components/ffmpeg/__init__.py

* forgot about the mock in conftest for comps

homeassistant/components/ffmpeg/__init__.py

@@ -4,7 +4,7 @@
 
 import asyncio
 import re
-from typing import Generic, TypeVar
+from typing import TYPE_CHECKING, Generic, TypeVar
 
 from haffmpeg.core import HAFFmpeg
 from haffmpeg.tools import IMAGE_JPEG, FFVersion, ImageFrame
@@ -24,9 +24,16 @@
     async_dispatcher_send,
 )
 from homeassistant.helpers.entity import Entity
+from homeassistant.helpers.system_info import is_official_image
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.loader import bind_hass
 
+if TYPE_CHECKING:
+    from functools import cached_property
+else:
+    from homeassistant.backports.functools import cached_property
+
+
 _HAFFmpegT = TypeVar("_HAFFmpegT", bound=HAFFmpeg)
 
 DOMAIN = "ffmpeg"
@@ -49,6 +56,12 @@
 
 DEFAULT_BINARY = "ffmpeg"
 
+# Currently we only care if the version is < 3
+# because we use a different content-type
+# It is only important to update this version if the
+# content-type changes again in the future
+OFFICIAL_IMAGE_VERSION = "6.0"
+
 CONFIG_SCHEMA = vol.Schema(
     {
         DOMAIN: vol.Schema(
@@ -142,26 +155,28 @@ def __init__(self, hass: HomeAssistant, ffmpeg_bin: str) -> None:
         self._version: str | None = None
         self._major_version: int | None = None
 
-    @property
+    @cached_property
     def binary(self) -> str:
         """Return ffmpeg binary from config."""
         return self._bin
 
     async def async_get_version(self) -> tuple[str | None, int | None]:
         """Return ffmpeg version."""
-
-        ffversion = FFVersion(self._bin)
-        self._version = await ffversion.get_version()
-
-        self._major_version = None
-        if self._version is not None:
-            result = re.search(r"(\d+)\.", self._version)
-            if result is not None:
-                self._major_version = int(result.group(1))
+        if self._version is None:
+            if is_official_image():
+                self._version = OFFICIAL_IMAGE_VERSION
+                self._major_version = int(self._version.split(".")[0])
+            elif (
+                (version := await FFVersion(self._bin).get_version())
+                and (result := re.search(r"(\d+)\.", version))
+                and (major_version := int(result.group(1)))
+            ):
+                self._version = version
+                self._major_version = major_version
 
         return self._version, self._major_version
 
-    @property
+    @cached_property
     def ffmpeg_stream_content_type(self) -> str:
         """Return HTTP content type for ffmpeg stream."""
         if self._major_version is not None and self._major_version > 3:

tests/components/ffmpeg/test_init.py

@@ -8,6 +8,7 @@
     SERVICE_RESTART,
     SERVICE_START,
     SERVICE_STOP,
+    get_ffmpeg_manager,
 )
 from homeassistant.const import (
     ATTR_ENTITY_ID,
@@ -251,3 +252,40 @@ async def test_async_get_image_with_extra_cmd_width_height(hass: HomeAssistant)
     assert get_image_mock.call_args_list == [
         call("rtsp://fake", output_format="mjpeg", extra_cmd="-vf any -s 640x480")
     ]
+
+
+async def test_modern_ffmpeg(
+    hass: HomeAssistant,
+) -> None:
+    """Test modern ffmpeg uses the new ffmpeg content type."""
+    with assert_setup_component(1):
+        await async_setup_component(hass, ffmpeg.DOMAIN, {ffmpeg.DOMAIN: {}})
+
+    manager = get_ffmpeg_manager(hass)
+    assert "ffmpeg" in manager.ffmpeg_stream_content_type
+
+
+async def test_legacy_ffmpeg(
+    hass: HomeAssistant,
+) -> None:
+    """Test legacy ffmpeg uses the old ffserver content type."""
+    with assert_setup_component(1), patch(
+        "homeassistant.components.ffmpeg.FFVersion.get_version", return_value="3.0"
+    ), patch("homeassistant.components.ffmpeg.is_official_image", return_value=False):
+        await async_setup_component(hass, ffmpeg.DOMAIN, {ffmpeg.DOMAIN: {}})
+
+    manager = get_ffmpeg_manager(hass)
+    assert "ffserver" in manager.ffmpeg_stream_content_type
+
+
+async def test_ffmpeg_using_official_image(
+    hass: HomeAssistant,
+) -> None:
+    """Test ffmpeg using official image is the new ffmpeg content type."""
+    with assert_setup_component(1), patch(
+        "homeassistant.components.ffmpeg.is_official_image", return_value=True
+    ):
+        await async_setup_component(hass, ffmpeg.DOMAIN, {ffmpeg.DOMAIN: {}})
+
+    manager = get_ffmpeg_manager(hass)
+    assert "ffmpeg" in manager.ffmpeg_stream_content_type