add get duration local

This commit is contained in:
sun-guannan
2025-07-13 15:09:36 +08:00
parent a842875945
commit 1bb31941df

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@@ -4,19 +4,19 @@ import time
def get_video_duration(video_url):
"""
获取视频时长,支持超时重试。
:param video_url: 视频URL
:return: 视频时长(秒)
Get video duration with timeout retry support.
:param video_url: Video URL
:return: Video duration (seconds)
"""
# 定义重试次数和每次重试的等待时间
# Define retry count and wait time for each retry
max_retries = 3
retry_delay_seconds = 1 # 每次重试间隔1秒
timeout_seconds = 10 # 设置每次尝试的超时时间
retry_delay_seconds = 1 # 1 second interval between retries
timeout_seconds = 10 # Set timeout for each attempt
for attempt in range(max_retries):
print(f"尝试获取视频时长 (第 {attempt + 1}/{max_retries} 次尝试) ...")
result = {"success": False, "output": 0, "error": None} # 每次重试前重置结果
print(f"Attempting to get video duration (Attempt {attempt + 1}/{max_retries}) ...")
result = {"success": False, "output": 0, "error": None} # Reset result before each retry
try:
command = [
@@ -28,73 +28,73 @@ def get_video_duration(video_url):
video_url
]
# 使用 subprocess.run 更灵活地处理超时和输出
# Use subprocess.run for more flexible handling of timeout and output
process = subprocess.run(command,
capture_output=True,
text=True, # 自动解码为文本
timeout=timeout_seconds, # 使用变量设置超时时间
check=True) # 如果返回非零退出码则抛出CalledProcessError
text=True, # Auto decode to text
timeout=timeout_seconds, # Use variable to set timeout
check=True) # Raise CalledProcessError if non-zero exit code
info = json.loads(process.stdout)
# 优先从流中获取时长,因为更精确
# Prioritize getting duration from streams because it's more accurate
media_streams = [s for s in info.get('streams', []) if 'duration' in s]
if media_streams:
duration = float(media_streams[0]['duration'])
result["output"] = duration
result["success"] = True
# 否则从格式信息中获取时长
# Otherwise get duration from format information
elif 'format' in info and 'duration' in info['format']:
duration = float(info['format']['duration'])
result["output"] = duration
result["success"] = True
else:
result["error"] = "未找到音视频时长信息。"
result["error"] = "Audio/video duration information not found."
# 如果成功获取时长,直接返回结果,不再重试
# If duration is successfully obtained, return result directly without retrying
if result["success"]:
print(f"成功获取时长: {result['output']:.2f} ")
print(f"Successfully obtained duration: {result['output']:.2f} seconds")
return result
except subprocess.TimeoutExpired:
result["error"] = f"获取视频时长超时(超过{timeout_seconds}秒)。"
print(f"尝试 {attempt + 1} 超时。")
result["error"] = f"Getting video duration timed out (exceeded {timeout_seconds} seconds)."
print(f"Attempt {attempt + 1} timed out.")
except subprocess.CalledProcessError as e:
result["error"] = f"执行 ffprobe 命令出错 (退出码 {e.returncode}): {e.stderr.strip()}"
print(f"尝试 {attempt + 1} 失败。错误: {e.stderr.strip()}")
result["error"] = f"Error executing ffprobe command (exit code {e.returncode}): {e.stderr.strip()}"
print(f"Attempt {attempt + 1} failed. Error: {e.stderr.strip()}")
except json.JSONDecodeError as e:
result["error"] = f"解析 JSON 数据出错: {e}"
print(f"尝试 {attempt + 1} 失败。JSON 解析错误: {e}")
result["error"] = f"Error parsing JSON data: {e}"
print(f"Attempt {attempt + 1} failed. JSON parsing error: {e}")
except FileNotFoundError:
result["error"] = "ffprobe 命令未找到。请确保 FFmpeg 已安装且在系统 PATH 中。"
print("错误: ffprobe 命令未找到,请检查安装。")
return result # ffprobe本身找不到无需重试
result["error"] = "ffprobe command not found. Please ensure FFmpeg is installed and in system PATH."
print("Error: ffprobe command not found, please check installation.")
return result # No need to retry if ffprobe itself is not found
except Exception as e:
result["error"] = f"发生未知错误: {e}"
print(f"尝试 {attempt + 1} 失败。未知错误: {e}")
result["error"] = f"Unknown error occurred: {e}"
print(f"Attempt {attempt + 1} failed. Unknown error: {e}")
# 每次失败后都尝试使用远程服务获取时长
# Try using remote service to get duration after each local failure
if not result["success"]:
print(f"本地获取失败")
print(f"Local retrieval failed")
# try:
# remote_duration = get_duration(video_url)
# if remote_duration is not None:
# result["success"] = True
# result["output"] = remote_duration
# result["error"] = None
# print(f"远程服务成功获取时长: {remote_duration:.2f} ")
# return result # 远程服务成功,直接返回
# print(f"Remote service successfully obtained duration: {remote_duration:.2f} seconds")
# return result # Remote service succeeded, return directly
# else:
# print(f"远程服务也无法获取时长 (第 {attempt + 1} 次尝试)")
# print(f"Remote service also unable to get duration (Attempt {attempt + 1})")
# except Exception as e:
# print(f"远程服务获取时长失败 (第 {attempt + 1} 次尝试): {e}")
# print(f"Remote service failed to get duration (Attempt {attempt + 1}): {e}")
# 如果当前尝试失败且未达到最大重试次数,则等待并准备下一次重试
# If current attempt failed and max retries not reached, wait and prepare for next retry
if not result["success"] and attempt < max_retries - 1:
print(f"等待 {retry_delay_seconds} 秒后重试...")
print(f"Waiting {retry_delay_seconds} seconds before retrying...")
time.sleep(retry_delay_seconds)
elif not result["success"] and attempt == max_retries - 1:
print(f"已达到最大重试次数 {max_retries},本地和远程服务都无法获取时长。")
print(f"Maximum retry count {max_retries} reached, both local and remote services unable to get duration.")
return result # 所有重试都失败后返回最后一次的失败结果
return result # Return the last failure result after all retries fail