Improve default timelapse args and make timelapse customizable (#7840)

* Add args to ignore audio and only process keyframes

* Add timelapse args to config

* Update docs

* Formatting

* Fix spacing

* Fix formatting

* add example of math for pts

docs/docs/configuration/index.md

@@ -362,6 +362,16 @@ record:
     #   active_objects - save all recording segments with active/moving objects
     # NOTE: this mode only applies when the days setting above is greater than 0
     mode: all
+  # Optional: Recording Export Settings
+  export:
+    # Optional: Timelapse Output Args (default: shown below).
+    # NOTE: The default args are set to fit 24 hours of recording into 1 hour playback.
+    # See https://stackoverflow.com/a/58268695 for more info on how these args work.
+    # As an example: if you wanted to go from 24 hours to 30 minutes that would be going
+    # from 86400 seconds to 1800 seconds which would be 1800 / 86400 = 0.02.
+    # The -r (framerate) dictates how smooth the output video is.
+    # So the args would be -vf setpts=0.02*PTS -r 30 in that case.
+    timelapse_args: "-vf setpts=0.04*PTS -r 30"
   # Optional: Event recording settings
   events:
     # Optional: Number of seconds before the event to include (default: shown below)

frigate/config.py

@@ -51,6 +51,7 @@ DEFAULT_TRACKED_OBJECTS = ["person"]
 DEFAULT_LISTEN_AUDIO = ["bark", "fire_alarm", "scream", "speech", "yell"]
 DEFAULT_DETECTORS = {"cpu": {"type": "cpu"}}
 DEFAULT_DETECT_DIMENSIONS = {"width": 1280, "height": 720}
+DEFAULT_TIME_LAPSE_FFMPEG_ARGS = "-vf setpts=0.04*PTS -r 30"
 
 
 class FrigateBaseModel(BaseModel):
@@ -198,6 +199,12 @@ class RecordRetainConfig(FrigateBaseModel):
     mode: RetainModeEnum = Field(default=RetainModeEnum.all, title="Retain mode.")
 
 
+class RecordExportConfig(FrigateBaseModel):
+    timelapse_args: str = Field(
+        default=DEFAULT_TIME_LAPSE_FFMPEG_ARGS, title="Timelapse Args"
+    )
+
+
 class RecordConfig(FrigateBaseModel):
     enabled: bool = Field(default=False, title="Enable record on all cameras.")
     sync_on_startup: bool = Field(
@@ -213,6 +220,9 @@ class RecordConfig(FrigateBaseModel):
     events: EventsConfig = Field(
         default_factory=EventsConfig, title="Event specific settings."
     )
+    export: RecordExportConfig = Field(
+        default_factory=RecordExportConfig, title="Recording Export Config"
+    )
     enabled_in_config: Optional[bool] = Field(
         title="Keep track of original state of recording."
     )

frigate/record/export.py

@@ -18,6 +18,9 @@ from frigate.models import Recordings
 logger = logging.getLogger(__name__)
 
 
+TIMELAPSE_DATA_INPUT_ARGS = "-an -skip_frame nokey"
+
+
 def lower_priority():
     os.nice(10)
 
@@ -99,8 +102,8 @@ class RecordingExporter(threading.Thread):
             ffmpeg_cmd = (
                 parse_preset_hardware_acceleration_encode(
                     self.config.ffmpeg.hwaccel_args,
-                    ffmpeg_input,
+                    f"{TIMELAPSE_DATA_INPUT_ARGS} {ffmpeg_input}",
-                    f"-vf setpts=0.04*PTS -r 30 -an {file_name}",
+                    f"{self.config.cameras[self.camera].record.export.timelapse_args} {file_name}",
                     EncodeTypeEnum.timelapse,
                 )
             ).split(" ")