Byted Tos Audio Process

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tos

# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#!/usr/bin/env python3
import argparse
import json
import os
import sys

sys.path.insert(0, os.path.dirname(__file__))

from tos_jobs_client import create_client_from_env


JOB_TYPE = "AudioConvert"
JOB_CATEGORY = "media_jobs"


def build_audio_convert_detail(
    src_object: str,
    output_bucket: str,
    output_object: str,
    region: str,
    container_format: str = "wav",
    sample_rate: int = 16000,
    channels: int = 1,
    sample_format: str = "s16",
    start_ms: int = 0,
    duration_ms: int = 0,
) -> dict:
    config = {
        "ContainerFormat": container_format,
        "SampleRate": sample_rate,
        "Channels": channels,
        "SampleFormat": sample_format,
    }
    if start_ms > 0 or duration_ms > 0:
        ti = {}
        if start_ms > 0:
            ti["Start"] = start_ms
        if duration_ms > 0:
            ti["Duration"] = duration_ms
        config["TimeInterval"] = ti

    return {
        "Input": {"Object": src_object},
        "AudioConvertConfig": config,
        "Output": {
            "Region": region,
            "Bucket": output_bucket,
            "Object": output_object,
        },
    }


def fail(message: str) -> None:
    print(f"[ERROR] {message}", file=sys.stderr)
    sys.exit(1)


def parse_args() -> argparse.Namespace:
    parser = argparse.ArgumentParser(
        description="Convert audio to PCM (WAV container) via TOS media_jobs API"
    )
    parser.add_argument("--key", help="Source audio object key in TOS")
    parser.add_argument("--bucket", help="TOS bucket name (default: TOS_BUCKET env)")
    parser.add_argument("--output-key", dest="output_key", help="Deprecated alias of --saveas-object")
    parser.add_argument("--output-bucket", dest="output_bucket", help="Deprecated alias of --saveas-bucket")
    parser.add_argument("--saveas-object", help="Output object key (default: <key>.wav)")
    parser.add_argument("--saveas-bucket", help="Output bucket (default: same as source)")
    parser.add_argument(
        "--sample-rate",
        type=int,
        default=16000,
        help="Sample rate in Hz (default: 16000)",
    )
    parser.add_argument(
        "--channels", type=int, default=1, help="Number of channels (default: 1)"
    )
    parser.add_argument(
        "--sample-format", default="s16", help="Sample format (default: s16)"
    )
    parser.add_argument(
        "--container-format", default="wav", help="Container format (default: wav)"
    )
    parser.add_argument(
        "--start-ms", type=int, default=0, help="Start time in milliseconds"
    )
    parser.add_argument(
        "--duration-ms", type=int, default=0, help="Duration in milliseconds"
    )
    parser.add_argument(
        "--timeout",
        type=int,
        default=300,
        help="Max wait time in seconds (default: 300)",
    )
    parser.add_argument(
        "--poll-interval",
        type=int,
        default=5,
        help="Poll interval in seconds (default: 5)",
    )
    parser.add_argument("--wait", action="store_true", help="Wait for job completion")
    parser.add_argument("--job-id", help="Query an existing job instead of creating a new one")
    parser.add_argument("--validate", action="store_true", help="Validate arguments and payload only")
    parser.add_argument("--dry-run", action="store_true", help="Print resolved payload and exit")
    parser.add_argument("--json", action="store_true", help="Print machine-readable JSON only")
    return parser.parse_args()


def resolve_output_args(args: argparse.Namespace):
    saveas_bucket = args.saveas_bucket or args.output_bucket
    saveas_object = args.saveas_object or args.output_key
    return saveas_bucket, saveas_object


def emit(payload: dict, json_only: bool, heading=None) -> None:
    if json_only:
        print(json.dumps(payload, ensure_ascii=False))
        return
    if heading:
        print(heading)
    print(json.dumps(payload, indent=2, ensure_ascii=False))


def main():
    args = parse_args()

    bucket = args.bucket or os.environ.get("TOS_BUCKET", "")
    if not bucket:
        fail("--bucket or TOS_BUCKET env is required")

    region = os.environ.get("TOS_REGION", "")
    if not region:
        fail("TOS_REGION env is required")

    client = create_client_from_env()
    client.bucket = bucket
    client.region = region

    if args.job_id:
        result = client.get_job(JOB_TYPE, args.job_id, job_category=JOB_CATEGORY)
        emit(
            {
                "ok": True,
                "operation": "audio_to_pcm_query",
                "bucket": bucket,
                "job_id": args.job_id,
                "job_type": JOB_TYPE,
                "job_category": JOB_CATEGORY,
                "result": result,
            },
            args.json,
            "[OK] Job query result:",
        )
        return

    key = args.key
    if not key:
        fail("--key is required")

    if args.sample_rate <= 0:
        fail("--sample-rate must be > 0")
    if args.channels <= 0:
        fail("--channels must be > 0")
    if args.start_ms < 0:
        fail("--start-ms must be >= 0")
    if args.duration_ms < 0:
        fail("--duration-ms must be >= 0")

    saveas_bucket, saveas_object = resolve_output_args(args)
    output_bucket = saveas_bucket or bucket
    output_key = saveas_object or key.rsplit(".", 1)[0] + ".wav"

    detail = build_audio_convert_detail(
        src_object=key,
        output_bucket=output_bucket,
        output_object=output_key,
        region=region,
        container_format=args.container_format,
        sample_rate=args.sample_rate,
        channels=args.channels,
        sample_format=args.sample_format,
        start_ms=args.start_ms,
        duration_ms=args.duration_ms,
    )

    plan = {
        "ok": True,
        "operation": "audio_to_pcm",
        "bucket": bucket,
        "key": key,
        "saveas_bucket": output_bucket,
        "saveas_object": output_key,
        "job_type": JOB_TYPE,
        "job_category": JOB_CATEGORY,
        "detail": detail,
    }

    if args.validate or args.dry_run:
        emit(plan, args.json, "[OK] Resolved request:")
        return

    if not args.json:
        print(f"[INFO] Creating AudioConvert job: {key} -> {output_bucket}/{output_key}")
    resp = client.create_job(JOB_CATEGORY, JOB_TYPE, detail)

    job_id = resp.get("JobId", "")
    if not job_id:
        fail(f"No JobId in response: {resp}")

    result_payload = {
        **plan,
        "job_id": job_id,
        "create_response": resp,
    }

    if args.wait:
        if not args.json:
            print(f"[INFO] Waiting for job completion (timeout={args.timeout}s)...")
        result = client.wait_for_job(
            JOB_TYPE,
            job_id,
            timeout=args.timeout,
            interval=args.poll_interval,
            job_category=JOB_CATEGORY,
        )
        result_payload["final_result"] = result
        result_payload["state"] = result.get("State", "Unknown")
        emit(result_payload, args.json, "[OK] Audio conversion result:")
        if result_payload["state"] != "Success":
            sys.exit(1)
        return

    emit(result_payload, args.json, "[OK] Job created:")


if __name__ == "__main__":
    main()

# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import json
import os
import time
import urllib.request
import urllib.error
from typing import Optional

import tos


class TOSJobsClient:
    def __init__(self, ak: str, sk: str, endpoint: str, region: str, bucket: str):
        self.bucket = bucket
        self.region = region
        self.client = tos.TosClientV2(ak, sk, endpoint, region)

    def _signed_request(
        self, method: str, query: dict, body: Optional[bytes] = None
    ) -> dict:
        url_out = self.client.pre_signed_url(
            tos.HttpMethodType.Http_Method_Post
            if method == "POST"
            else tos.HttpMethodType.Http_Method_Get,
            self.bucket,
            "",
            expires=900,
            query=query,
        )
        req = urllib.request.Request(
            url_out.signed_url,
            data=body,
            method=method,
        )
        for k, v in url_out.signed_header.items():
            req.add_header(k, v)
        if body is not None:
            req.add_header("Content-Type", "application/json")
        try:
            with urllib.request.urlopen(req) as resp:
                data = resp.read()
                return json.loads(data)
        except urllib.error.HTTPError as e:
            body_text = e.read().decode("utf-8", errors="replace")
            raise RuntimeError(f"HTTP {e.code}: {body_text}") from e

    def create_job(self, job_category: str, job_type: str, job_detail: dict) -> dict:
        query = {job_category: "", "job_type": job_type}
        body = json.dumps(job_detail).encode("utf-8")
        return self._signed_request("POST", query, body)

    def get_job(
        self, job_type: str, job_id: str, job_category: str = "media_jobs"
    ) -> dict:
        query = {job_category: "", "job_type": job_type, "job_id": job_id}
        return self._signed_request("GET", query)

    def wait_for_job(
        self,
        job_type: str,
        job_id: str,
        timeout: int = 300,
        interval: int = 5,
        job_category: str = "media_jobs",
    ) -> dict:
        deadline = time.time() + timeout
        while time.time() < deadline:
            result = self.get_job(job_type, job_id, job_category=job_category)
            items = result.get("Items", [])
            if items:
                item = items[0]
            else:
                item = result
            state = item.get("State", "")
            if state in ("Success", "Failed"):
                return item
            time.sleep(interval)
        raise TimeoutError(f"Job {job_id} did not complete within {timeout}s")


def get_env(name: str) -> str:
    val = os.environ.get(name, "")
    if not val:
        raise ValueError(f"Environment variable {name} is required")
    return val


def create_client_from_env() -> TOSJobsClient:
    return TOSJobsClient(
        ak=get_env("TOS_ACCESS_KEY"),
        sk=get_env("TOS_SECRET_KEY"),
        endpoint=get_env("TOS_ENDPOINT"),
        region=get_env("TOS_REGION"),
        bucket=get_env("TOS_BUCKET"),
    )