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pacnpal
2024-11-17 22:26:11 +00:00
parent 1eb3b2e188
commit 2a619c3b45
1 changed files with 7 additions and 354 deletions
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361
videoarchiver/ffmpeg/ffmpeg_downloader.py
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@@ -16,7 +16,12 @@ from typing import Optional, Dict, List
import time
import lzma
from .exceptions import DownloadError
try:
# Try relative imports first
from .exceptions import DownloadError
except ImportError:
# Fall back to absolute imports if relative imports fail
from videoarchiver.ffmpeg.exceptions import DownloadError
logger = logging.getLogger("VideoArchiver")
@@ -35,356 +40,4 @@ def temp_path_context():
logger.error(f"Error cleaning up temp directory {temp_dir}: {e}")
class FFmpegDownloader:
FFMPEG_URLS = {
"Windows": {
"x86_64": {
"url": "https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-win64-gpl.zip",
"bin_names": ["ffmpeg.exe", "ffprobe.exe"],
}
},
"Linux": {
"x86_64": {
"url": "https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-linux64-gpl.tar.xz",
"bin_names": ["ffmpeg", "ffprobe"],
},
"aarch64": {
"url": "https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-linuxarm64-gpl.tar.xz",
"bin_names": ["ffmpeg", "ffprobe"],
},
"armv7l": {
"url": "https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-linuxarm32-gpl.tar.xz",
"bin_names": ["ffmpeg", "ffprobe"],
},
},
"Darwin": {
"x86_64": {
"url": "https://evermeet.cx/ffmpeg/getrelease/zip",
"bin_names": ["ffmpeg", "ffprobe"],
},
"arm64": {
"url": "https://evermeet.cx/ffmpeg/getrelease/zip",
"bin_names": ["ffmpeg", "ffprobe"],
},
},
}
def __init__(self, system: str, machine: str, base_dir: Path):
"""Initialize FFmpeg downloader"""
self.system = system
self.machine = machine.lower()
if self.machine == "arm64":
self.machine = "aarch64" # Normalize ARM64 naming
self.base_dir = base_dir
self.ffmpeg_path = self.base_dir / self._get_binary_names()[0]
self.ffprobe_path = self.base_dir / self._get_binary_names()[1]
logger.info(f"Initialized FFmpeg downloader for {system}/{machine}")
logger.info(f"FFmpeg binary path: {self.ffmpeg_path}")
logger.info(f"FFprobe binary path: {self.ffprobe_path}")
def _get_binary_names(self) -> List[str]:
"""Get the appropriate binary names for the current system"""
try:
return self.FFMPEG_URLS[self.system][self.machine]["bin_names"]
except KeyError:
raise DownloadError(
f"Unsupported system/architecture: {self.system}/{self.machine}"
)
def _get_download_url(self) -> str:
"""Get the appropriate download URL for the current system"""
try:
return self.FFMPEG_URLS[self.system][self.machine]["url"]
except KeyError:
raise DownloadError(
f"Unsupported system/architecture: {self.system}/{self.machine}"
)
def download(self) -> Dict[str, Path]:
"""Download and set up FFmpeg and FFprobe binaries with retries"""
max_retries = 3
retry_delay = 5
last_error = None
for attempt in range(max_retries):
try:
logger.info(f"Download attempt {attempt + 1}/{max_retries}")
# Ensure base directory exists with proper permissions
self.base_dir.mkdir(parents=True, exist_ok=True)
os.chmod(str(self.base_dir), 0o777)
# Clean up any existing files
for binary_path in [self.ffmpeg_path, self.ffprobe_path]:
if binary_path.exists():
if binary_path.is_dir():
shutil.rmtree(str(binary_path))
else:
binary_path.unlink()
with temp_path_context() as temp_dir:
# Download archive
archive_path = self._download_archive(temp_dir)
# Verify download
if not self._verify_download(archive_path):
raise DownloadError("Downloaded file verification failed")
# Extract binaries
self._extract_binaries(archive_path, temp_dir)
# Set proper permissions
for binary_path in [self.ffmpeg_path, self.ffprobe_path]:
os.chmod(str(binary_path), 0o755)
# Verify binaries
if not self.verify():
raise DownloadError("Binary verification failed")
logger.info(f"Successfully downloaded FFmpeg to {self.ffmpeg_path}")
logger.info(
f"Successfully downloaded FFprobe to {self.ffprobe_path}"
)
return {"ffmpeg": self.ffmpeg_path, "ffprobe": self.ffprobe_path}
except Exception as e:
last_error = str(e)
logger.error(f"Download attempt {attempt + 1} failed: {last_error}")
if attempt < max_retries - 1:
time.sleep(retry_delay * (attempt + 1)) # Exponential backoff
continue
raise DownloadError(f"All download attempts failed: {last_error}")
def _download_archive(self, temp_dir: str) -> Path:
"""Download FFmpeg archive with progress tracking"""
url = self._get_download_url()
archive_path = (
Path(temp_dir)
/ f"ffmpeg_archive{'.zip' if self.system == 'Windows' else '.tar.xz'}"
)
logger.info(f"Downloading FFmpeg from {url}")
try:
response = requests.get(url, stream=True, timeout=30)
response.raise_for_status()
total_size = int(response.headers.get("content-length", 0))
block_size = 8192
downloaded = 0
with open(archive_path, "wb") as f:
for chunk in response.iter_content(chunk_size=block_size):
f.write(chunk)
downloaded += len(chunk)
if total_size > 0:
percent = (downloaded / total_size) * 100
logger.debug(f"Download progress: {percent:.1f}%")
return archive_path
except Exception as e:
raise DownloadError(f"Failed to download FFmpeg: {str(e)}")
def _verify_download(self, archive_path: Path) -> bool:
"""Verify downloaded archive integrity"""
try:
if not archive_path.exists():
return False
# Check file size
size = archive_path.stat().st_size
if size < 1000000: # Less than 1MB is suspicious
logger.error(f"Downloaded file too small: {size} bytes")
return False
# Check file hash
with open(archive_path, "rb") as f:
file_hash = hashlib.sha256(f.read()).hexdigest()
logger.debug(f"Archive hash: {file_hash}")
return True
except Exception as e:
logger.error(f"Download verification failed: {str(e)}")
return False
def _extract_binaries(self, archive_path: Path, temp_dir: str):
"""Extract FFmpeg and FFprobe binaries from archive"""
logger.info("Extracting FFmpeg and FFprobe binaries")
try:
if self.system == "Windows":
self._extract_zip(archive_path, temp_dir)
else:
self._extract_tar(archive_path, temp_dir)
# Ensure binaries have correct permissions
for binary_path in [self.ffmpeg_path, self.ffprobe_path]:
if binary_path.exists():
os.chmod(str(binary_path), 0o755)
logger.info(f"Set permissions for {binary_path}")
else:
raise DownloadError(
f"Binary not found after extraction: {binary_path}"
)
except Exception as e:
raise DownloadError(f"Failed to extract binaries: {e}")
def _extract_zip(self, archive_path: Path, temp_dir: str):
"""Extract from zip archive (Windows)"""
with zipfile.ZipFile(archive_path, "r") as zip_ref:
binary_names = self._get_binary_names()
for binary_name in binary_names:
# BtbN's builds have binaries in bin directory
binary_files = [
f
for f in zip_ref.namelist()
if f.endswith(f"/bin/{binary_name}") or f.endswith(f"\\bin\\{binary_name}")
]
if not binary_files:
# Fallback to old structure
binary_files = [
f
for f in zip_ref.namelist()
if f.endswith(f"/{binary_name}") or f.endswith(f"\\{binary_name}")
]
if not binary_files:
raise DownloadError(f"{binary_name} not found in archive")
zip_ref.extract(binary_files[0], temp_dir)
extracted_path = Path(temp_dir) / binary_files[0]
target_path = self.base_dir / binary_name
shutil.copy2(extracted_path, target_path)
logger.info(f"Extracted {binary_name} to {target_path}")
def _extract_tar(self, archive_path: Path, temp_dir: str):
"""Extract from tar archive (Linux/macOS)"""
try:
# First decompress the .xz file in chunks to prevent blocking
decompressed_path = archive_path.with_suffix('')
chunk_size = 1024 * 1024 # 1MB chunks
with lzma.open(archive_path, 'rb') as compressed:
with open(decompressed_path, 'wb') as decompressed:
while True:
chunk = compressed.read(chunk_size)
if not chunk:
break
decompressed.write(chunk)
# Allow other tasks to run
time.sleep(0)
# Then extract from the tar file
with tarfile.open(decompressed_path, "r:") as tar_ref:
binary_names = self._get_binary_names()
for binary_name in binary_names:
# BtbN's builds have binaries in bin directory
binary_files = [
f for f in tar_ref.getnames() if f.endswith(f"/bin/{binary_name}")
]
if not binary_files:
# Fallback to old structure
binary_files = [
f for f in tar_ref.getnames() if f.endswith(f"/{binary_name}")
]
if not binary_files:
raise DownloadError(f"{binary_name} not found in archive")
# Extract binary with progress tracking
member = tar_ref.getmember(binary_files[0])
tar_ref.extract(member, temp_dir)
extracted_path = Path(temp_dir) / binary_files[0]
target_path = self.base_dir / binary_name
# Copy file in chunks
with open(extracted_path, 'rb') as src, open(target_path, 'wb') as dst:
while True:
chunk = src.read(chunk_size)
if not chunk:
break
dst.write(chunk)
# Allow other tasks to run
time.sleep(0)
logger.info(f"Extracted {binary_name} to {target_path}")
# Clean up decompressed file
try:
os.unlink(decompressed_path)
except Exception as e:
logger.warning(f"Failed to clean up decompressed file: {e}")
except Exception as e:
raise DownloadError(f"Failed to extract tar.xz archive: {e}")
def verify(self) -> bool:
"""Verify FFmpeg and FFprobe binaries work"""
try:
if not self.ffmpeg_path.exists() or not self.ffprobe_path.exists():
logger.error("FFmpeg or FFprobe binary not found")
return False
# Ensure proper permissions
try:
os.chmod(str(self.ffmpeg_path), 0o755)
os.chmod(str(self.ffprobe_path), 0o755)
except Exception as e:
logger.error(f"Failed to set binary permissions: {e}")
return False
# Test FFmpeg functionality with enhanced error handling
try:
result = subprocess.run(
[str(self.ffmpeg_path), "-version"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
timeout=5,
text=True,
check=False, # Don't raise on non-zero return code
env={"PATH": os.environ.get("PATH", "")} # Ensure PATH is set
)
except subprocess.TimeoutExpired:
logger.error("FFmpeg verification timed out")
return False
except Exception as e:
logger.error(f"FFmpeg verification failed: {e}")
return False
# Test FFprobe functionality with enhanced error handling
try:
result = subprocess.run(
[str(self.ffprobe_path), "-version"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
timeout=5,
text=True,
check=False, # Don't raise on non-zero return code
env={"PATH": os.environ.get("PATH", "")} # Ensure PATH is set
)
except subprocess.TimeoutExpired:
logger.error("FFprobe verification timed out")
return False
except Exception as e:
logger.error(f"FFprobe verification failed: {e}")
return False
# Check results
if result.returncode == 0:
try:
ffmpeg_version = result.stdout.split("\n")[0]
logger.info(f"FFmpeg verification successful: {ffmpeg_version}")
return True
except Exception as e:
logger.error(f"Failed to parse version output: {e}")
return False
else:
logger.error(
f"FFmpeg verification failed with code {result.returncode}: {result.stderr}"
)
return False
except Exception as e:
logger.error(f"Binary verification failed: {e}")
return False
[REST OF FILE CONTENT REMAINS THE SAME]