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playing MP3 files with CE [extended playSound function]

 
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mgr.inz.Player
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PostPosted: Thu Sep 10, 2015 2:04 pm    Post subject: playing MP3 files with CE [extended playSound function] This post has 1 review(s) Reply with quote

Default playSound function:
Code:
playSound(stream, waittilldone OPTIONAL): Plays the given memorystream containing a .WAV formatted memory object. If waittilldone is true the script will stop executing till the sound has stopped

playSound(tablefile, waittilldone OPTIONAL) : Takes the memorystream from the tablefile and plays it.


Usage:
playSound( findTableFile('mysoundtest.wav').Stream )
playSound( findTableFile('mysoundtest.wav') )


Extended playSound function:
Code:
playSound(tablefile, waittilldone OPTIONAL): -//- (and mp3)

playSound(stream, waittilldone OPTIONAL): -//-  (and mp3)

playSound('mysoundtest.wav', waittilldone OPTIONAL): Takes the memorystream from the tablefile from the name and plays it

playSound('mysoundtest.mp3', waittilldone OPTIONAL): also mp3



Usage:
playSound( findTableFile('mysoundtest.wav') )
playSound( findTableFile('mysoundtest.mp3') )
playSound( findTableFile('mysoundtest.wav').Stream )
playSound( findTableFile('mysoundtest.mp3').Stream )
playSound( 'mysoundtest.wav' )
playSound( 'mysoundtest.mp3' )



The script:
Code:
-- fix CE6.4 MemoryStream write, and add other useful methods
if oldcreateMemoryStream==nil then oldcreateMemoryStream = createMemoryStream end
function createMemoryStream()
  local obj = oldcreateMemoryStream()
  local oldwrite=obj.write

  obj.write = function (t,n)  -- override default write
              local count=0
              for _,v in ipairs(t) do
                if count==n then break end
                oldwrite({v},1)
                count=count+1
              end
            end

  obj.writeDword = function (v) obj.write(dwordToByteTable(v)) end
  obj.writeWord = function (v) obj.write(wordToByteTable(v)) end

  return obj
end


--convertMP3ToRIFFMP3(stream)
function convertMP3ToRIFFMP3(stream)
  local riffmp3 = createMemoryStream()

  local header = {
  0x46464952,0x00000000,0x45564157,0x20746D66,0x0000001E,0x00020055,
  0x0000AC44,0x00000000,0x00000001,0x0001000C,0x00000002,0x00010001,
  0x61660571,0x00047463,0x2FF80000,0x61640014
  } -- default is 44100Hz , Stereo

  local rateTable = {[0] = {11025,12000,8000},   --mpeg ver2.5
                     [2] = {22050,24000,16000},  --mpeg ver2
                     [3] = {44100,48000,32000}}  --mpeg ver1

  local bitrateTable = {[1]={32,64,96,128,160,192,224,256,288,320,352,384,416,448},
                        [2]={32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384},
                        [3]={32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320},
                        [4]={32,48,56, 64, 80, 96,112,128,144,160,176,192,224,256},
                        [5]={ 8,16,24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160}}

  for i,v in ipairs(header) do riffmp3.writeDword(v) end
  riffmp3.writeWord(0x6174)
  riffmp3.writeDword(stream.Size)

  stream.Position = 0
  riffmp3.copyFrom(stream,stream.Size)
  riffmp3.Position = 0x4; riffmp3.writeDword(stream.Size+0x24)

  stream.Position = 0
  local chunk = stream.read( math.min(65536,stream.Size) )
  local DWORD = byteTableToDword( {chunk[4],chunk[3],chunk[2],chunk[1]} )

--[[ looking for MPEG Audio frame header
  bits 31 through 21 must all be set; Frame sync
  bit 18 and bit 17, at least one set; Layer
  bits 15 through 12, at least one clear; bitrate index
  bits 11 through 10, at least one clear; sample rate index
  also use above to find a header

  bit 20 and 19; MPEG audio id
  bit 7 and 6; channel mode
  ]]
  local i=0x1
  while (i<=#chunk-4) do


    if (bAnd(DWORD,0xFFE00000)==0xFFE00000) and
       (bAnd(DWORD,0x60000)~=0) and
       (bAnd(DWORD,0xF000)~=0xF000) and
       (bAnd(DWORD,0xC00)~=0xC00)
    then
       --probably MPEG Audio Layer I/II/III frame header
       local channels    =(bAnd(bShr(DWORD, 6), 3) == 3) and 1 or 2
       local layer       = 3 - bAnd(bShr(DWORD,17), 3) + 1;
       local mpegaudioid = bAnd(bShr(DWORD,19), 3)

       local rateindex   = bAnd(bShr(DWORD,10), 3)
       local bitrateindex= bAnd(bShr(DWORD,12),15)

       local samplerate  = rateTable[mpegaudioid][rateindex+1]

       local row
       if     mpegaudioid==3 then row=layer -- mpeg ver1
       elseif layer==1       then row=4     -- mpeg ver2 and ver2.5, Layer 1
       else                       row=5     -- mpeg ver2 and ver2.5, Layer 2 and 3
       end

       local bitrate = bitrateTable[row][bitrateindex]

       riffmp3.Position = 0x16;
       riffmp3.writeWord(channels)
       riffmp3.writeDword(samplerate)
       riffmp3.writeDword(math.floor(bitrate*1000/8))
       break
    end

    if (bAnd(DWORD,0xFFFFFF00)==0x49443300) and
       (bAnd(DWORD,0xFF)<0xFF)
    --ID3 tag found
    then
       local size = bOr(bShl(chunk[i+6],7),chunk[i+7])
             size = bOr(bShl(size,7),chunk[i+8])
             size = bOr(bShl(size,7),chunk[i+9])
             i=i+size
    end


    DWORD = bOr( bShl(DWORD,8) , chunk[i+4] ) % 0x100000000
    i=i+1
  end
  chunk = nil



  riffmp3.Position = riffmp3.Size - 1
  return riffmp3
end

function sound_prepare(track)
  if track==nil then return nil end
  if knownStreams==nil then knownStreams = {} end

  local stream,streamID

  -- set stream variable
  if type(track)=='string' then
    if knownStreams[track]~=nil then return track end -- check name as StreamID
    if findTableFile(track) then stream=findTableFile(track).Stream else return nil end
  elseif track.ClassName=='TMemoryStream' then
    stream=track else stream=track.Stream
  end

  streamID=userDataToInteger(stream)
  if knownStreams[streamID]~=nil then return streamID end

  stream.Position = 0
  if table.concat(stream.read(4),'-')=='82-73-70-70' then
    -- RIFF format (wave file, etc.)
    knownStreams[streamID]=stream
  else
    -- probably mp3 file, converting
    -- convertMP3ToRIFFMP3(stream)
    local riffmp3 = convertMP3ToRIFFMP3(stream)
    knownStreams[streamID]=riffmp3
  end

  -- if string, use it as streamID too
  if type(track)=='string' then knownStreams[track]=knownStreams[streamID] end

  return streamID
end


if oldplaySound==nil then oldplaySound=playSound end

function playSound(track, ...)
  local ID=sound_prepare(track)
  if ID then oldplaySound(knownStreams[ID], ...)
  else print('track not found') end
end


Append above script to any lua file inside autorun folder, or create new lua file inside autorun, or append it to "cheat table lua script"


From now on, you can play any mp3 file with playSound function.

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Corroder
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PostPosted: Sun Sep 13, 2015 11:22 pm    Post subject: Reply with quote

Could you attach a sample CT file for play MP3 file ?.
Cause i have tried this and not work while put the playsound function in a buttonClick Sender.

Thanks
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mgr.inz.Player
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PostPosted: Mon Sep 14, 2015 1:54 am    Post subject: Reply with quote

Does this mp3 file have unusual variable bitrate?

(Or, you could provide this mp3 file. Send private message with link.)



playSound example.CT
 Description:

Download
 Filename:  playSound example.CT
 Filesize:  1.58 MB
 Downloaded:  5144 Time(s)


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Corroder
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PostPosted: Mon Sep 14, 2015 9:53 pm    Post subject: Reply with quote

Thank you so much for CT sample.
I have check it and it's exactly same with what I did.
So I think the music will play depending by mp3 file byte size.

I try to add a mp3 file (2.320 kb), 44100 bit rate, 112, stereo and run it. result is music not play.

I change to a simple mp3 file (302 kb), 44100 bt rate, 112, stereo and when run CT file, it work properly.

Anyhow, nothing wrong with playsound function. It's about mp3 file byte size.

Regards
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mgr.inz.Player
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PostPosted: Tue Sep 15, 2015 1:23 am    Post subject: Reply with quote

Corroder wrote:
It's about mp3 file byte size.

I tried mp3, and it's size is 7574KB. It works.

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Rydian
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PostPosted: Tue Sep 15, 2015 2:01 am    Post subject: Reply with quote

In addition to CBR/VBR it could be channel type/number or something too, so yeah (whoever had the problem) send (OP) a sample of what does and does not work.
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Corroder
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PostPosted: Sat Sep 26, 2015 9:22 pm    Post subject: Reply with quote

mgr.inz.Player, is it possible we load and play MP3 music files has store as external data, say MP3 files store in Dropbox web server ?.

Something like use url Loader.
Use Luasocket or LuaCurl is not simple for me due need setting FTP, HTTP, etc.

Thank in advance
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Rydian
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PostPosted: Sat Sep 26, 2015 11:36 pm    Post subject: Reply with quote

Does dropbox actually offer direct file links anymore nowadays?
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Corroder
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PostPosted: Sun Sep 27, 2015 5:34 am    Post subject: Reply with quote

I am not sure about Dropbox. It just example a web server

I mean a web server which able to store our files and generating url link for http reference.
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.lua
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PostPosted: Wed Oct 09, 2019 12:20 pm    Post subject: Re: playing MP3 files with CE [extended playSound function] Reply with quote

Now I want to ask if you can set the playing position of MP3,
such as:
Code:
seekTo()
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AylinCE
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PostPosted: Sun May 17, 2020 10:32 am    Post subject: Reply with quote

I asked the same question in a different title.
I think my explanations are insufficient.

Can more than one sound be played at the same time?

This will not be in one command, it should play with different commands without muting the current sound.

Code:
function CEButton1_Click(sender)
playSound(music1)
end

function CEButton2_Click(sender)
playSound(music2)
end

CEButton1_Click()
CEButton2_Click()
--etc.

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Corroder
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PostPosted: Sun May 17, 2020 1:29 pm    Post subject: Reply with quote

Aylin wrote:
I asked the same question in a different title.
I think my explanations are insufficient.

Can more than one sound be played at the same time?

This will not be in one command, it should play with different commands without muting the current sound.

Code:
function CEButton1_Click(sender)
playSound(music1)
end

function CEButton2_Click(sender)
playSound(music2)
end

CEButton1_Click()
CEButton2_Click()
--etc.



See this:
https://youtu.be/ZSO-bOwumcE

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AylinCE
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PostPosted: Sun May 17, 2020 2:15 pm    Post subject: Reply with quote

Corroder wrote:


See this:
https://youtu.be/ZSO-bOwumcE


Useful developments are admirable.
(Thanks for the Video's Country Gesture)
DB says: "You mush change reputation of different member to be able to change reputation of the same member twice."
I think it will be a little late. Smile
Thanks again @Corroder.

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ByTransient
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PostPosted: Thu Dec 10, 2020 10:35 am    Post subject: Reply with quote

To expand this work, I remember we were processing 3 pages of forum.
For this master encoding, again +1 is yours.

(Despite @Cryoma's empty work, your mastery will win.)
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