start and end time

[loretoparisi]

Assumed that as you suggests that media server can stream from a specific frame position as for here #6
it's not clear to me how to handle this on the client side. I mean I have start and end times in seconds. Of course I have the mp3 file info from ffprobe so I should calcolate by my self the frames and cut the audio file before then passing it to the mediaserver?
In that case it's just a cut with ffmpeg but it would prefer to do this in streaming without cutting the file.

Since you are using the method getRange like

var range = getRange(req, total);

I assume I could send you a req.headers.range to support this, right? If so could you make an example of the range, it seems it's like a bytes range separated with a -, so it's to me like

setHeader('range:'+ start_bytes+'-'+end_bytes)

Thank you.

[loretoparisi]

So I get these info with ffprobe like

ffprobe -i /root/audio/12380187.mp3 -show_frames -show_entries frame=pkt_pos -of default=noprint_wrappers=1:nokey=1 -hide_banner -loglevel panic -read_intervals 20%+#1
480279

where 20 is my start position in seconds that turns out to be 480279 in bytes.
In this way I have passed the header like bytes=120515-240260 and I get a range array of

[ 120515, 240260, 4724126 ]

where the last bytes is of course the file length. Having this settings I have these headers:

{
 "Content-Length": 4724126,
  "Content-Type": "audio/mpeg",
  "Access-Control-Allow-Origin": "*",
  "Access-Control-Allow-Methods": "POST, GET, OPTIONS",
  "Access-Control-Allow-Headers": "POST, GET, OPTIONS",
  "Accept-Ranges": "bytes",
  "Content-Range": "bytes 120515-240260/4724126"
}

Problem is that it does not work then i.e. it does not stream any contents so what is wrong here?

[loretoparisi]

[UPDATE]
I think this maybe due to a severe issue on Google's Chrome so I have asked to SF in Content-Range working in Safari but not in Chrome and in Streaming audio in Node.js with Content-Range.

My latest attempt was using the suggested Access-Control-Allow-Headers header set to Range

{ 'Content-Length': 5751405,
  'Content-Type': 'audio/mpeg',
  'Access-Control-Allow-Origin': '*',
  'Access-Control-Allow-Methods': 'POST, GET, OPTIONS',
  'Access-Control-Allow-Headers': 'Range',
  Expires: 0,
  Pragma: 'no-cache',
  'Cache-Control': 'no-cache, no-store, must-revalidate',
  'Accept-Ranges': 'bytes',
  'Content-Range': 'bytes 120429-240237/5751405' }

as referred in mozilla/pdf.js#3150 and in mozilla/pdf.js#4530 (comment)

[obastemur]

Thanks for the update. Closing it for now then.