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remove font_scale in timestamp_style and calculate dynamically again

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This commit is contained in:
Blake Blackshear 2021-09-04 16:34:48 -05:00
parent 7fc5297f60
commit f63a7cb6c0
4 changed files with 51 additions and 30 deletions
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44
docs/docs/configuration/cameras.md
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@ -241,8 +241,6 @@ timestamp_style:
red: 255
green: 255
blue: 255
# Optional: Scale factor for font (default: shown below)
scale: 1.0
# Optional: Line thickness of font (default: shown below)
thickness: 2
# Optional: Effect of lettering (default: shown below)
@ -439,28 +437,26 @@ cameras:
# Optional: In-feed timestamp style configuration
timestamp_style:
# Optional: Position of the timestamp (default: shown below)
# "tl" (top left), "tr" (top right), "bl" (bottom left), "br" (bottom right)
position: "tl"
# Optional: Format specifier conform to the Python package "datetime" (default: shown below)
# Additional Examples:
# german: "%d.%m.%Y %H:%M:%S"
format: "%m/%d/%Y %H:%M:%S"
# Optional: Color of font
color:
# All Required when color is specified (default: shown below)
red: 255
green: 255
blue: 255
# Optional: Scale factor for font (default: shown below)
scale: 1.0
# Optional: Line thickness of font (default: shown below)
thickness: 2
# Optional: Effect of lettering (default: shown below)
# None (No effect),
# "solid" (solid background in inverse color of font)
# "shadow" (shadow for font)
effect: None
# Optional: Position of the timestamp (default: shown below)
# "tl" (top left), "tr" (top right), "bl" (bottom left), "br" (bottom right)
position: "tl"
# Optional: Format specifier conform to the Python package "datetime" (default: shown below)
# Additional Examples:
# german: "%d.%m.%Y %H:%M:%S"
format: "%m/%d/%Y %H:%M:%S"
# Optional: Color of font
color:
# All Required when color is specified (default: shown below)
red: 255
green: 255
blue: 255
# Optional: Line thickness of font (default: shown below)
thickness: 2
# Optional: Effect of lettering (default: shown below)
# None (No effect),
# "solid" (solid background in inverse color of font)
# "shadow" (shadow for font)
effect: None
```
## Camera specific configuration

19
frigate/config.py
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@ -405,13 +405,26 @@ class ColorConfig(BaseModel):
blue: int = Field(default=255, le=0, ge=255, title="Blue")
class TimestampPositionEnum(str, Enum):
tl = "tl"
tr = "tr"
bl = "bl"
br = "br"
class TimestampEffectEnum(str, Enum):
solid = "solid"
shadow = "shadow"
class TimestampStyleConfig(BaseModel):
position: str = Field(default="tl", title="Timestamp position.")
position: TimestampPositionEnum = Field(
default=TimestampPositionEnum.tl, title="Timestamp position."
)
format: str = Field(default=DEFAULT_TIME_FORMAT, title="Timestamp format.")
color: ColorConfig = Field(default_factory=ColorConfig, title="Timestamp color.")
scale: float = Field(default=1.0, title="Timestamp scale.")
thickness: int = Field(default=2, title="Timestamp thickness.")
effect: Optional[str] = Field(title="Timestamp effect.")
effect: Optional[TimestampEffectEnum] = Field(title="Timestamp effect.")
class CameraMqttConfig(BaseModel):

2
frigate/object_processing.py
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@ -275,7 +275,6 @@ class TrackedObject:
self.thumbnail_data["frame_time"],
self.camera_config.timestamp_style.format,
font_effect=self.camera_config.timestamp_style.effect,
font_scale=self.camera_config.timestamp_style.scale,
font_thickness=self.camera_config.timestamp_style.thickness,
font_color=(color.red, color.green, color.blue),
position=self.camera_config.timestamp_style.position,
@ -411,7 +410,6 @@ class CameraState:
frame_time,
self.camera_config.timestamp_style.format,
font_effect=self.camera_config.timestamp_style.effect,
font_scale=self.camera_config.timestamp_style.scale,
font_thickness=self.camera_config.timestamp_style.thickness,
font_color=(color.red, color.green, color.blue),
position=self.camera_config.timestamp_style.position,

16
frigate/util.py
View File

@ -51,18 +51,32 @@ def draw_timestamp(
timestamp,
timestamp_format,
font_effect=None,
font_scale=1.0,
font_thickness=2,
font_color=(255, 255, 255),
position="tl",
):
time_to_show = datetime.datetime.fromtimestamp(timestamp).strftime(timestamp_format)
# calculate a dynamic font size
size = cv2.getTextSize(
time_to_show,
cv2.FONT_HERSHEY_SIMPLEX,
fontScale=1.0,
thickness=font_thickness,
)
text_width = size[0][0]
desired_size = max(150, 0.33 * frame.shape[1])
font_scale = desired_size / text_width
# calculate the actual size with the dynamic scale
size = cv2.getTextSize(
time_to_show,
cv2.FONT_HERSHEY_SIMPLEX,
fontScale=font_scale,
thickness=font_thickness,
)
image_width = frame.shape[1]
image_height = frame.shape[0]
text_width = size[0][0]