djsundog/ffplayout
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add loudnorm (maybe it not work together with s302m audio codec)

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This commit is contained in:
jb-alvarado 2019-09-11 23:20:24 +02:00
parent 0cbad7bb08
commit a0fdb854aa
2 changed files with 27 additions and 3 deletions
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8
ffplayout.conf
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@ -60,8 +60,10 @@ log_level = INFO
; logo is only used if the path exist ; logo is only used if the path exist
; with logo_opacity logo can make transparent ; with logo_opacity logo can make transparent
; with logo_filter = overlay=W-w-12:12 you can modify the logo position ; with logo_filter = overlay=W-w-12:12 you can modify the logo position
; with use_loudnorm you can activate single pass EBU R128 loudness normalization
; loud_* can adjust the loudnorm filter
; live_protocols is for checking input, is input a live source ffplayout handles it a bit different ; live_protocols is for checking input, is input a live source ffplayout handles it a bit different
; info: outout is progressive! ; info: output is progressive!
[PRE_COMPRESS] [PRE_COMPRESS]
width = 1024 width = 1024
height = 576 height = 576
@ -70,6 +72,10 @@ fps = 25
logo = logo.png logo = logo.png
logo_opacity = 0.7 logo_opacity = 0.7
logo_filter = overlay=W-w-12:12 logo_filter = overlay=W-w-12:12
use_loudnorm = False
loud_I = -18
loud_TP = -1.5
loud_LRA = 11
live_protocols = ["http", "https", "ftp", "rtmp", "rtmpe", "rtmps", "rtp", "rtsp", "srt", "tcp", "udp"] live_protocols = ["http", "https", "ftp", "rtmp", "rtmpe", "rtmps", "rtp", "rtsp", "srt", "tcp", "udp"]

22
ffplayout.py
View File

@ -115,6 +115,10 @@ _pre_comp = SimpleNamespace(
logo=cfg.get('PRE_COMPRESS', 'logo'), logo=cfg.get('PRE_COMPRESS', 'logo'),
opacity=cfg.get('PRE_COMPRESS', 'logo_opacity'), opacity=cfg.get('PRE_COMPRESS', 'logo_opacity'),
logo_filter=cfg.get('PRE_COMPRESS', 'logo_filter'), logo_filter=cfg.get('PRE_COMPRESS', 'logo_filter'),
add_loudnorm=cfg.getboolean('PRE_COMPRESS', 'add_loudnorm'),
loud_i=cfg.getfloat('PRE_COMPRESS', 'loud_I'),
loud_tp=cfg.getfloat('PRE_COMPRESS', 'loud_TP'),
loud_lra=cfg.getfloat('PRE_COMPRESS', 'loud_LRA'),
protocols=cfg.get('PRE_COMPRESS', 'live_protocols') protocols=cfg.get('PRE_COMPRESS', 'live_protocols')
) )
@ -798,6 +802,20 @@ def add_audio(probe, duration):
return line return line
def add_loudnorm(probe):
"""
add single pass loudnorm filter to audio line
"""
loud_filter = []
if probe.audio and _pre_comp.add_loudnorm:
loud_filter = [('loudnorm=I={}:TP={}:LRA={},asetnsamples=n=1024:p=1,'
'aresample=48000').format(
_pre_comp.loud_i, _pre_comp.loud_tp, _pre_comp.loud_lra)]
return loud_filter
def extend_audio(probe, duration): def extend_audio(probe, duration):
""" """
check audio duration, is it shorter then clip duration - pad it check audio duration, is it shorter then clip duration - pad it
@ -856,6 +874,7 @@ def build_filtergraph(first, duration, seek, out, ad, ad_last, ad_next, dummy,
if not audio_chain: if not audio_chain:
audio_chain.append('[0:a]anull') audio_chain.append('[0:a]anull')
audio_chain += add_loudnorm(probe)
audio_chain += extend_audio(probe, out - seek) audio_chain += extend_audio(probe, out - seek)
audio_chain += fade_filter(first, duration, seek, out, 'a') audio_chain += fade_filter(first, duration, seek, out, 'a')
@ -1342,8 +1361,7 @@ def main():
'-minrate', '{}k'.format(_pre_comp.v_bitrate), '-minrate', '{}k'.format(_pre_comp.v_bitrate),
'-maxrate', '{}k'.format(_pre_comp.v_bitrate), '-maxrate', '{}k'.format(_pre_comp.v_bitrate),
'-bufsize', '{}k'.format(_pre_comp.v_bufsize), '-bufsize', '{}k'.format(_pre_comp.v_bufsize),
'-c:a', 's302m', '-strict', '-2', '-c:a', 's302m', '-strict', '-2', '-ar', '48000', '-ac', '2',
'-ar', '48000', '-ac', '2',
'-f', 'mpegts', '-'] '-f', 'mpegts', '-']
if os.path.isfile(_text.textfile): if os.path.isfile(_text.textfile):