How to Configure MOV H.265 Render Settings with the DaVinci Resolve API

import os
import sys
from pathlib import Path


def import_resolve_module():
    try:
        import DaVinciResolveScript as dvr
        return dvr
    except ImportError:
        search_paths = [
            os.environ.get("RESOLVE_SCRIPT_API", ""),
            os.environ.get("RESOLVE_MODULES", ""),
            r"C:\\ProgramData\\Blackmagic Design\\DaVinci Resolve\\Support\\Developer\\Scripting\\Modules",
            "/opt/resolve/Developer/Scripting/Modules",
            "/opt/BlackmagicDesign/DaVinciResolve/Developer/Scripting/Modules",
            "/Library/Application Support/Blackmagic Design/DaVinci Resolve/Developer/Scripting/Modules",
            str(Path.home() / "Library/Application Support/Blackmagic Design/DaVinci Resolve/Developer/Scripting/Modules"),
        ]
        for path in search_paths:
            if path and os.path.isdir(path) and path not in sys.path:
                sys.path.append(path)
        import DaVinciResolveScript as dvr
        return dvr


def safe_call(obj, name, *args, **kwargs):
    try:
        fn = getattr(obj, name, None)
        if callable(fn):
            return fn(*args, **kwargs)
    except Exception:
        return None
    return None


def get_project_and_timeline():
    dvr = import_resolve_module()
    resolve = dvr.scriptapp("Resolve")
    if not resolve:
        raise RuntimeError("DaVinci Resolve API is unavailable")

    project_manager = resolve.GetProjectManager()
    project = project_manager.GetCurrentProject() if project_manager else None
    if not project:
        raise RuntimeError("No DaVinci Resolve project is open")

    timeline = project.GetCurrentTimeline()
    if not timeline:
        raise RuntimeError("No active Timeline")

    return resolve, project, timeline


def apply_mov_hevc_settings(project, target_dir: str, base_name: str) -> None:
    Path(target_dir).expanduser().mkdir(parents=True, exist_ok=True)

    project.SetRenderSettings({
        "TargetDir": str(Path(target_dir).expanduser()),
        "CustomName": base_name,
        "ExportVideo": True,
        "ExportAudio": True,
        "IndividualClips": False,
        "UniqueFilenames": True,
        "Format": "mov",
        "AudioCodec": "AAC",
        "AudioBitrate": 320000,
        "AudioSampleRate": 48000,
        "AudioBitDepth": 16,
    })

    for codec in ["H.265", "H265", "HEVC", "H.265 Master", "H.265 Main10"]:
        if safe_call(project, "SetRenderSettings", {"VideoCodec": codec}):
            break

    safe_call(project, "SetRenderSettings", {"Quality": "Restrict to", "VideoBitrate": 30000})


resolve, project, timeline = get_project_and_timeline()
apply_mov_hevc_settings(project, r"D:\\renders", "resolve_hevc_export")
job_id = project.AddRenderJob()
print("Render job created:", job_id)