Mercurial > libervia-backend
annotate sat/tools/video.py @ 3582:71516731d0aa
core (memory/sqla): database migration using Alembic:
Alembic database migration tool, which is the recommended one for SQLAlchemy has been
integrated. When a database is created, it will be used to stamp to current (head)
revision, otherwise, DB will be checked to see if it needs to be updated, and upgrade will
be triggered if necessary.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 25 Jun 2021 17:55:23 +0200 |
| parents | 7550ae9cfbac |
| children |
| rev | line source |
|---|---|
| 3347 | 1 #!/usr/bin/env python3 |
| 2 | |
|
3480
7550ae9cfbac
Renamed the project from "Salut à Toi" to "Libervia":
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
3 # Libervia: an XMPP client |
| 3479 | 4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
| 3347 | 5 |
| 6 # This program is free software: you can redistribute it and/or modify | |
| 7 # it under the terms of the GNU Affero General Public License as published by | |
| 8 # the Free Software Foundation, either version 3 of the License, or | |
| 9 # (at your option) any later version. | |
| 10 | |
| 11 # This program is distributed in the hope that it will be useful, | |
| 12 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 # GNU Affero General Public License for more details. | |
| 15 | |
| 16 # You should have received a copy of the GNU Affero General Public License | |
| 17 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 """Methods to manipulate videos""" | |
| 20 from typing import Union | |
| 21 from pathlib import Path | |
| 22 from twisted.python.procutils import which | |
| 23 from sat.core.i18n import _ | |
| 24 from sat.core import exceptions | |
| 25 from sat.core.log import getLogger | |
| 26 from .common import async_process | |
| 27 | |
| 28 | |
| 29 log = getLogger(__name__) | |
| 30 | |
| 31 | |
| 32 | |
| 33 | |
| 34 | |
| 35 try: | |
| 36 ffmpeg_path = which('ffmpeg')[0] | |
| 37 except IndexError: | |
| 38 log.warning(_( | |
| 39 "ffmpeg executable not found, video thumbnails won't be available")) | |
| 40 ffmpeg_path = None | |
| 41 | |
| 42 | |
| 43 async def get_thumbnail(video_path: Union[Path, str], dest_path: Path) -> Path: | |
| 44 """Extract thumbnail from video | |
| 45 | |
| 46 @param video_path: source of the video | |
| 47 @param dest_path: path where the file must be saved | |
| 48 @return: path of the generated thumbnail | |
| 49 image is created in temporary directory but is not delete automatically | |
| 50 it should be deleted after use. | |
| 51 Image will be in JPEG format. | |
| 52 @raise exceptions.NotFound: ffmpeg is missing | |
| 53 """ | |
| 54 if ffmpeg_path is None: | |
| 55 raise exceptions.NotFound( | |
| 56 _("ffmpeg executable is not available, can't generate video thumbnail")) | |
| 57 | |
| 58 await async_process.run( | |
| 59 ffmpeg_path, "-i", str(video_path), "-ss", "10", "-frames:v", "1", str(dest_path) | |
| 60 ) |