rra/radio-looptober-lurk
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transcode to opus

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Signed-off-by: ugrnm <ultrageranium@bleu255.com>
This commit is contained in:
Claude Heiland-Allen 2023-06-14 23:53:17 +01:00 committed by ugrnm
parent 253c4fbd34
commit 1dfd002e53
3 changed files with 31 additions and 5 deletions
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1
README
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@ -15,6 +15,7 @@ There are two scripts:
* download_loooooops.py
* gets latest toots tagged with #looptoper
* download all the attachment if new
* transcodes to opus
* generates new playlist and tells ezstream to reload it

2
TODO
View File

@ -3,8 +3,6 @@ TODO
* cache the json parsing/process locally for faster restart tests
* only download MP3 files
* extract relevant json stuff to fill in or update ID3 tags
* 80c :)
* convert the downloaded mp3 files to opus
* get rid of request, just use urlib or something
* build the loop inside the download script

33
download_loooooops.py
View File

@ -11,8 +11,27 @@ from urllib.parse import urlparse
output_dir = "loooooops"
bitrate = "128k"
def transcode_media(path, media_item, metadata):
infile = os.path.join(path, media_item)
outfile = os.path.join(path, media_item + ".opus")
if not os.path.exists(outfile):
print("transcodeing to {}".format(outfile))
pid = os.fork()
if pid == 0:
artist = metadata["creator"]
title = metadata["url"]
comment = metadata["description"]
date = metadata["date"]
os.execlp("ffmpeg", "ffmpeg", "-hide_banner", "-loglevel", "error", "-i", infile, "-map_metadata", "-1", "-metadata", "artist={}".format(artist), "-metadata", "title={}".format(title), "-metadata", "creation_time={}".format(date), "-map_chapters", "-1", "-ac", "2", "-af", "loudnorm=dual_mono=true", "-b:a", bitrate, "-y", outfile)
# never reached
else:
os.wait()
def grab_media(path, url):
try:
media_item = urlparse(url).path.split('/')[-1]
headers = {
@ -20,13 +39,19 @@ def grab_media(path, url):
'From': 'post.lurk.org/@lurk' # This is another valid field
}
if not os.path.exists(os.path.join(path, media_item)):
if os.path.exists(os.path.join(path, media_item)):
return media_item
else:
response = requests.get(url, headers=headers, stream=True)
if response.ok:
with open(os.path.join(path, media_item), 'wb') as media_file:
shutil.copyfileobj(response.raw, media_file)
print('Downloaded media {} from {}'.format(media_item, urlparse(url).netloc))
return media_item
except requests.exceptions.ConnectionError as e:
# maybe transient network issues
print(e)
sleep(60)
#This pages through all the looptober tag and collects the json in 'data'
there_is_more = True
@ -92,10 +117,12 @@ for l in looooops:
else:
url = a['url']
grab_media(path, url)
media_item = grab_media(path, url)
if media_item:
transcode_media(path, media_item, l)
# Once we've done everythin we generate a playlist and ask ezstream
# to reload it
os.system('find . -iname "*mp3" > playlist_loooooops.m3u'\
os.system('find . -iname "*opus" > playlist_loooooops.m3u'\
'&& kill -s HUP `pidof ezstream`')