Merge pull request #1574 from liamb13/background_audio

adds background audio

utils/.config.template.toml

@@ -34,8 +34,8 @@ resolution_h = { optional = false, default = 1920, example = 2560, explantation
 
 [settings.background]
 background_choice = { optional = true, default = "minecraft", example = "rocket-league", options = ["minecraft", "gta", "rocket-league", "motor-gta", "csgo-surf", "cluster-truck", "minecraft-2","multiversus","fall-guys","steep", ""], explanation = "Sets the background for the video based on game name" }
-#background_audio = { optional = true, type = "bool", default = false, example = false, options = [true, false,], explanation = "Sets a audio to play in the background (put a background.mp3 file in the assets/backgrounds directory for it to be used.)" }
-#background_audio_volume = { optional = true, type = "float", default = 0.3, example = 0.1, explanation="Sets the volume of the background audio. only used if the background_audio is also set to true" }
+background_audio = { optional = true, type = "bool", default = false, example = false, options = [true, false,], explanation = "Sets a audio to play in the background (put a background.mp3 file in the assets/backgrounds directory for it to be used.)" }
+background_audio_volume = { optional = true, type = "float", default = 0.3, example = 0.1, explanation="Sets the volume of the background audio. only used if the background_audio is also set to true" }
 background_thumbnail = { optional = true, type = "bool", default = false, example = false, options = [true, false,], explanation = "Generate a thumbnail for the video (put a thumbnail.png file in the assets/backgrounds directory.)" }
 background_thumbnail_font_family = { optional = true, default = "arial", example = "arial", explanation = "Font family for the thumbnail text" }
 background_thumbnail_font_size = { optional = true, type = "int", default = 96, example = 96, explanation = "Font size in pixels for the thumbnail text" }

video_creation/final_video.py

@@ -177,6 +177,35 @@ def make_final_video(
 
     screenshot_width = int((W * 45) // 100)
     audio = ffmpeg.input(f"assets/temp/{reddit_id}/audio.mp3")
+    # adds background audio
+    if settings.config["settings"]["background"]["background_audio"]:
+        if not exists("assets/backgrounds/background.mp3"):
+            print_substep(
+                "No audio file found called background.mp3 in assets/backgrounds", "red"
+            )
+        else:
+            if (
+                    not settings.config["settings"]["background"]["background_audio_volume"]
+                    or settings.config["settings"]["background"]["background_audio_volume"] == 0
+                    or settings.config["settings"]["background"]["background_audio_volume"] == ""
+            ):
+                print_substep(
+                    "Background audio volume is set to 0, not adding background audio",
+                    "red",
+                )
+            else:
+                # sets volume to config
+                bg_audio = (
+                    ffmpeg.input("assets/backgrounds/background.mp3")
+                    .filter(
+                        "volume",
+                        settings.config["settings"]["background"]["background_audio_volume"],
+                    )
+                )
+                # merges audio and bg_audio
+                merged_audio = ffmpeg.filter([audio, bg_audio], "amix", duration="longest")
+                # sets final audio to merged audio
+                audio = merged_audio
 
     image_clips = list()