You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.3 KiB
64 lines
2.3 KiB
#!/usr/bin/env python3 |
|
""" |
|
xconv ffmpeg wrapper based on AdvancedAV |
|
----------------------------------------------------------- |
|
AdvancedAV helps with constructing FFmpeg commandline arguments. |
|
|
|
It can automatically parse input files with the help of FFmpeg's ffprobe tool (WiP) |
|
and allows programatically mapping streams to output files and setting metadata on them. |
|
----------------------------------------------------------- |
|
Copyright (c) 2015-2017 Taeyeon Mori |
|
|
|
This program is free software: you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation, either version 3 of the License, or |
|
(at your option) any later version. |
|
|
|
This program is distributed in the hope that it will be useful, |
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
GNU General Public License for more details. |
|
|
|
You should have received a copy of the GNU General Public License |
|
along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
----------------------------------------------------------- |
|
Opus Audiobook profile |
|
""" |
|
|
|
from ..profile import * |
|
|
|
|
|
abdefines = dict( |
|
stereo="Use two channels at 48k", |
|
bitrate="Use custom target bitrate", |
|
fancy="Use 56kbps stereo (For dramatic audiobooks with a lot of music and effects)" |
|
) |
|
|
|
def apply(stream, defines): |
|
stream.set(codec="libopus", |
|
vbr="on", |
|
b="40k", |
|
ac="1", |
|
application="voip") |
|
if stream.source.channels > 1: |
|
if "stereo" in defines: |
|
stream.set(ac="2", |
|
b="48k") |
|
if "fancy" in defines: |
|
stream.set(ac="2", |
|
b="56k", |
|
application="audio") |
|
if "bitrate" in defines: |
|
stream.bitrate = defines["bitrate"] |
|
# At most input bitrate; we wouldn't gain anything since opus should be same or better compression |
|
stream.bitrate = min(stream.bitrate, stream.source.bitrate) |
|
|
|
|
|
@profile |
|
@description("Encode Opus Audiobook") |
|
@output(container="ogg", ext="ogg") |
|
@defines(**abdefines) |
|
@singleaudio |
|
def audiobook(task, stream, defines): |
|
apply(task.map_stream(stream), defines) |
|
return True
|
|
|