philippe_44 wrote:
> That would explain b/c the request range last byte is
> >
Code:
--------------------
> >
> $track->audio_offset + $track->audio_size - 1 if $track->audio_size;
>
--------------------
> >
> On purpose, it is not the content_length in the server response b/c a
> file might have all sort of trailing crap. Now, if there is an issue
> on the server and they have a wrong mp4 header, the track's audio_size
> might be incorrect and I'll shoot beyong the content_length. I can
> harden that a bit and take the smallest of contentLength (if any) and
> $track->audio_offset + $track->audio_size
Thank you for the explanation. I'm a bit confused how that all works
on a variable bit rate file. Take this example where we are having the
problem :
The (verified) content length is :
Code:
--------------------
"content-length" => 64_062_386,
Code:
--------------------
LMS reads the MP4 headers as such :
Code:
--------------------
my $a = {
audio_offset => 931_526,
audio_size => 63_180_833,
avg_bitrate => 46_792,
compatible_brands => ["isom", "M4A ", "mp42"],
dlna_profile => "AAC_ISO_192",
fh => bless(\*File::Temp::$fh, "File::Temp"),
file_size => 931_542,
jenkins_hash => "1280117999",
major_brand => "M4A ",
minor_version => 1,
mv_timescale => 600,
processors => { aac => sub { "???" } },
samplerate => 22_050,
song_length_ms => 10_800_020,
tracks => [
{
audio_object_type => 2,
audio_type => 64,
bits_per_sample => 16,
channels => 2,
duration => 10_800_020,
encoding => "mp4a",
handler_name => "SoundHandler",
handler_type => "soun",
id => 1,
max_bitrate => 51_944,
samplerate => 22_050,
},
],
};
--------------------
So, 931526 + 63180833 = 64,112,359 which is obviously greater than size of
the file. Which is why we are getting the Range error.
But how does it work out the audio size? Does the average bit rate come
from the Mp4 header or is it worked out from a sample? If it's the latter
would that be accurate enough to be used for the Range calculation?
Stuart McLean
EXPECTINGTOFLY PLUGINS :
- *BBC Sounds* :
https://github.com/expectingtofly/LMS_BBC_Sounds_Plugin
- *Virgin Radio (UK)* :
https://github.com/expectingtofly/LMS_Virgin_Radio_Plugin
- *Times Radio* :
https://github.com/expectingtofly/LMS_TIMES_RADIO_PLUGIN
- *Global Player (UK)* :
https://github.com/expectingtofly/LMS_GlobalPlayer_Plugin
For BBC Sounds help see the 'BBC Sounds Wiki'
(https://github.com/expectingtofly/LMS_BBC_Sounds_Plugin/wiki).
------------------------------------------------------------------------
expectingtofly's Profile: http://forums.slimdevices.com/member.php?userid=63263
View this thread: http://forums.slimdevices.com/showthread.php?t=115070
_______________________________________________
Squeezecenter mailing list
[email protected]
http://lists.slimdevices.com/mailman/listinfo/squeezecenter
