Im worried about it not sending at the configured bitrates. I've tried many options and profiles within liquidsoap. None will send higher than 64k.
It will send lower.. 24k is 24k.. but 64k's the limit it seems... -alex > On Jul 28, 2017, at 5:42 34AM, Darren Owen <[email protected]> wrote: > > It's just the nature of the AAC variants and their real vs effective sample > rate against the AAC profile that's been chosen. So I wouldn't worry about > the sample rate being reported. > On 28/07/2017 12:23, Alex LaBranche wrote: >> Yes I included that information in my first email... ffprobe shows what >> metadata its receiving, then the actual info on the stream >> >> metadata >> >> >>>>> icy-br : 256 >>>>> icy-sr : 22050 >>>>> >> Actual >> >> >>>>> Duration: N/A, bitrate: 62 kb/s >>>>> >>>>> Stream #0:0: Audio: aac (HE-AACv2), 44100 Hz, stereo, fltp, 62 kb/s >>>>> >> Basically 64k is as high as I can get it... >> >> Now if I use something like ffmpeg to do the transcoding instead of >> liquidsoap, using the same codec (libfdk_aac) >> >> Ffprobe shows >> >> Duration: N/A, bitrate: 249 kb/s >> Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 249 kb/s >> >> >> -alex >> >> >> >>> On Jul 27, 2017, at 5:45 18PM, Romain Beauxis <[email protected]> >>> wrote: >>> >>> Hi, >>> >>> Have you tried to download the stream and run ffprobe on it? Most likely, >>> shoutcast isn't reporting the correct value. >>> >>> Romain >>> >>> 2017-07-13 10:39 GMT-05:00 Alex LaBranche >>> <[email protected]> >>> : >>> >>>> Does anyone have any insight on this? >>>> >>>> >>>> >>>>> On Jul 5, 2017, at 12:44 24AM, Alex LaBranche <[email protected]> >>>>> wrote: >>>>> >>>>> It seems that when I'm using fdkaac (the only aac encoder available now >>>>> from the looks of it) the highest bitrate it will output is 64k >>>>> >>>>> This is what I have configured... >>>>> >>>>> output.shoutcast(%fdkaac(channels=2,bitrate=256,samplerate=44100),icy_id=5,icy_metdata="true", >>>>> name="Radio - 256k HE-AACv2",genre="Genre",url= >>>>> "https://www.domain.com"; >>>>> ,host="127.0.0.1",port = 80,password = "radio:#5",radio) >>>>> >>>>> output.shoutcast(%fdkaac(channels=2,bitrate=128,samplerate=44100),icy_id=6,icy_metdata="true",name="Radio >>>>> - 128k HE-AACv2",genre="Genre",url= >>>>> "https://www.domain.com"; >>>>> ,host="127.0.0.1",port = 80,password = "radio:#6",radio) >>>>> >>>>> output.shoutcast(%fdkaac(channels=2,bitrate=64,samplerate=44100),icy_id=7,icy_metdata="true",name="Radio >>>>> - 64k HE-AACv2",genre="Genre",url= >>>>> "https://www.domain.com"; >>>>> ,host="127.0.0.1",port = 80,password = "radio:#7",radio) >>>>> >>>>> output.shoutcast(%fdkaac(channels=2,bitrate=24,samplerate=44100),icy_id=8,icy_metdata="true",name="Radio >>>>> - 24k HE-AACv2",genre="Genre",url= >>>>> "https://www.domain.com"; >>>>> ,host="127.0.0.1",port = 80,password = "radio:#8",radio) >>>>> >>>>> I have a separate script thats basically the same but its outputting mp3 >>>>> (to the first 4 sid's on the sc_serv) >>>>> >>>>> >>>>> The Shoutcast status page reports the correct bitrate, but reports half >>>>> the sample rate >>>>> >>>>> HE-AAC @ 256 kbps, 22.05 kHz >>>>> HE-AAC @ 128 kbps, 22.05 kHz >>>>> HE-AAC @ 64 kbps, 22.05 kHz >>>>> HE-AAC @ 24 kbps, 22.05 kHz >>>>> >>>>> Odd.. ok... lets have a closer look... >>>>> >>>>> >>>>> $ ffprobe -hide_banner >>>>> http://127.0.0.1/stream/?sid=5 >>>>> >>>>> Input #0, aac, from ' >>>>> http://127.0.0.1/stream/?sid=5 >>>>> ': >>>>> Metadata: >>>>> icy-notice1 : <BR>This stream requires <a href= >>>>> "http://www.winamp.com"; >>>>> >Winamp</a><BR> >>>>> icy-notice2 : SHOUTcast DNAS/posix(linux x64) v2.5.1.724<BR> >>>>> icy-name : Radio >>>>> icy-genre : Genre >>>>> icy-br : 256 >>>>> icy-sr : 22050 >>>>> icy-url : >>>>> https://www.domain.com >>>>> >>>>> icy-pub : 1 >>>>> Duration: N/A, bitrate: 62 kb/s >>>>> Stream #0:0: Audio: aac (HE-AACv2), 44100 Hz, stereo, fltp, 62 kb/s >>>>> >>>>> >>>>> So liquidsoap is sending the configured bitrate, and half the configured >>>>> samplerate as metadata >>>>> >>>>> But is actually sending at 64kbps 44100 Hz >>>>> >>>>> >>>>> A look at the 24k... >>>>> >>>>> icy-br : 24 >>>>> icy-sr : 22050 >>>>> icy-url : >>>>> https://www.domain.com >>>>> >>>>> icy-pub : 1 >>>>> Duration: N/A, bitrate: 22 kb/s >>>>> Stream #0:0: Audio: aac (HE-AACv2), 44100 Hz, stereo, fltp, 22 kb/s >>>>> >>>>> Ok its got the bitrate and the sample rate correct in the actual stream, >>>>> but again fails at the icy-sr at only half >>>>> >>>>> And for the 128k... >>>>> >>>>> icy-br : 128 >>>>> icy-sr : 22050 >>>>> icy-url : >>>>> https://www.domain.com >>>>> >>>>> icy-pub : 1 >>>>> Duration: N/A, bitrate: 64 kb/s >>>>> Stream #0:0: Audio: aac (HE-AACv2), 44100 Hz, stereo, fltp, 64 kb/s >>>>> >>>>> And the 64k... >>>>> >>>>> icy-br : 64 >>>>> icy-sr : 22050 >>>>> icy-url : >>>>> https://www.domain.com >>>>> >>>>> icy-pub : 1 >>>>> Duration: N/A, bitrate: 66 kb/s >>>>> Stream #0:0: Audio: aac (HE-AACv2), 44100 Hz, stereo, fltp, 66 kb/s >>>>> >>>>> >>>>> Now lets try mediainfo >>>>> >>>>> 256k >>>>> >>>>> General >>>>> Complete name : >>>>> http://127.0.0.1/stream/?sid=5 >>>>> >>>>> Format : ADTS >>>>> Format/Info : Audio Data Transport Stream >>>>> Overall bit rate mode : Variable >>>>> >>>>> Audio >>>>> Format : AAC >>>>> Format/Info : Advanced Audio Codec >>>>> Format version : Version 4 >>>>> Format profile : HE-AACv2 / HE-AAC / LC >>>>> Bit rate mode : Variable >>>>> Channel(s) : 2 channels / 1 channel / 1 >>>>> channel >>>>> Channel positions : Front: L R / Front: C / Front: >>>>> C >>>>> Sampling rate : 44.1 kHz / 44.1 kHz / 22.05 kHz >>>>> Frame rate : 21.533 FPS (1024 spf) >>>>> Compression mode : Lossy >>>>> Stream size : 0.00 Byte >>>>> >>>>> >>>>> 128k >>>>> >>>>> General >>>>> Complete name : >>>>> http://127.0.0.1/stream/?sid=6 >>>>> >>>>> Format : ADTS >>>>> Format/Info : Audio Data Transport Stream >>>>> Overall bit rate mode : Variable >>>>> >>>>> Audio >>>>> Format : AAC >>>>> Format/Info : Advanced Audio Codec >>>>> Format version : Version 4 >>>>> Format profile : HE-AACv2 / HE-AAC / LC >>>>> Bit rate mode : Variable >>>>> Channel(s) : 2 channels / 1 channel / 1 >>>>> channel >>>>> Channel positions : Front: L R / Front: C / Front: >>>>> C >>>>> Sampling rate : 44.1 kHz / 44.1 kHz / 22.05 kHz >>>>> Frame rate : 21.533 FPS (1024 spf) >>>>> Compression mode : Lossy >>>>> Stream size : 0.00 Byte >>>>> >>>>> >>>>> 64k >>>>> >>>>> General >>>>> Complete name : >>>>> http://127.0.0.1/stream/?sid=7 >>>>> >>>>> Format : ADTS >>>>> Format/Info : Audio Data Transport Stream >>>>> Overall bit rate mode : Variable >>>>> >>>>> Audio >>>>> Format : AAC >>>>> Format/Info : Advanced Audio Codec >>>>> Format version : Version 4 >>>>> Format profile : HE-AACv2 / HE-AAC / LC >>>>> Bit rate mode : Variable >>>>> Channel(s) : 2 channels / 1 channel / 1 >>>>> channel >>>>> Channel positions : Front: L R / Front: C / Front: >>>>> C >>>>> Sampling rate : 44.1 kHz / 44.1 kHz / 22.05 kHz >>>>> Frame rate : 21.533 FPS (1024 spf) >>>>> Compression mode : Lossy >>>>> Stream size : 0.00 Byte >>>>> >>>>> >>>>> 24k >>>>> >>>>> General >>>>> Complete name : >>>>> http://127.0.0.1/stream/?sid=8 >>>>> >>>>> Format : ADTS >>>>> Format/Info : Audio Data Transport Stream >>>>> Overall bit rate mode : Variable >>>>> >>>>> Audio >>>>> Format : AAC >>>>> Format/Info : Advanced Audio Codec >>>>> Format version : Version 4 >>>>> Format profile : HE-AACv2 / HE-AAC / LC >>>>> Bit rate mode : Variable >>>>> Channel(s) : 2 channels / 1 channel / 1 >>>>> channel >>>>> Channel positions : Front: L R / Front: C / Front: >>>>> C >>>>> Sampling rate : 44.1 kHz / 44.1 kHz / 22.05 kHz >>>>> Frame rate : 21.533 FPS (1024 spf) >>>>> Compression mode : Lossy >>>>> Stream size : 0.00 Byte >>>>> >>>>> >>>>> Looks like the channels are procreating and is reporting as variable >>>>> bitrate when the default for fdkaac is cbr. >>>>> >>>>> From their docs.. >>>>> >>>>> • AACENC_BITRATEMODE Bitrate mode. Configuration can be different >>>>> kind of bitrate configurations- : >>>>> >>>>> <page37image15360.png> >>>>> 0: Constant bitrate, use bitrate according to AACENC_BITRATE. (default) >>>>> Within none LD/ELD ::AUDIO_OBJECT_TYPE, the CBR mode makes use of full >>>>> allowed bitreservoir. In contrast, at Low-Delay ::AUDIO_OBJECT_TYPE the >>>>> bitreservoir is kept very small. >>>>> 8: LD/ELD full bitreservoir for packet based transmission. >>>>> >>>>> >>>>> $ liquidsoap --version >>>>> Liquidsoap 1.3.1 ( >>>>> git://github.com/savonet/liquidsoap.git@cbfcd6004d7dba7211cd1d33a38fe192e1da9219:20170702:171027 >>>>> ) >>>>> >>>>> This is all very odd so if anyone can shed some light that would be >>>>> awesome... >>>>> >>>>> Cheers, >>>>> >>>>> -alex >>>>> ------------------------------------------------------------------------------ >>>>> Check out the vibrant tech community on one of the world's most >>>>> engaging tech sites, Slashdot.org! >>>>> http://sdm.link/slashdot_______________________________________________ >>>>> >>>>> Savonet-users mailing list >>>>> >>>>> [email protected] >>>>> https://lists.sourceforge.net/lists/listinfo/savonet-users >>>> >>>> ------------------------------------------------------------------------------ >>>> Check out the vibrant tech community on one of the world's most >>>> engaging tech sites, Slashdot.org! >>>> http://sdm.link/slashdot >>>> >>>> _______________________________________________ >>>> Savonet-users mailing list >>>> >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/savonet-users >>>> >>>> >>>> >>> ------------------------------------------------------------------------------ >>> Check out the vibrant tech community on one of the world's most >>> engaging tech sites, Slashdot.org! >>> http://sdm.link/slashdot_______________________________________________ >>> >>> Savonet-users mailing list >>> >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/savonet-users >> >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! >> http://sdm.link/slashdot >> >> >> _______________________________________________ >> Savonet-users mailing list >> >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/savonet-users > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! > http://sdm.link/slashdot_______________________________________________ > Savonet-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/savonet-users
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