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• Convert Blob audio file to mp3 type in typescript

  6 avril 2022, par I. Albuquerque

  I'm trying to convert a blob audio file to .mp3 type which is generated from MediaRecorder it is returning with webm type and I have tried other types in MimeType(attribute in MediaRecorder to set the type) but they are not supported so I have tried ffmpeg npm library but it was asking for path of the file but i'm not saving it so that also didn't work for me. Any suggestion and answer that will help !!

  


  Here is how i get audio

  


  getAudio(){
  navigator.mediaDevices.getUserMedia({ audio: true})
    .then( stream => {
      console.log(stream)
      this.mediaRecord = new MediaRecorder(stream)

      this.mediaRecord.ondataavailable = (data: { data: any; }) => {
        console.log(data)
        this.chunks.push(data.data)
      }

      this.mediaRecord.onstop = () => {
        const blob = new Blob(this.chunks, { type: 'audio/mp3'})
        const reader = new window.FileReader()
        reader.readAsDataURL(blob)
        reader.onloadend = () => {
          const teste:any = this.$el.querySelector('#teste')
          teste.src = reader.result //render.result e o local onde o audio fica armazenado
          this.ArquivoAudio = blob
          console.log(reader.result)
        }
      }
    }, err => {
      console.log(err)
      alert('voce deve permitir a captura de audio')
    })
},


  


• What type of stream does AVMediaType AVMEDIA_TYPE_NB represent

  6 juillet 2022, par Bernie

  The FFmpeg AVMediaType enum contains AVMEDIA_TYPE_NB.
What type of data stream does this contain ?
The name isn't very descriptive and the documentation doesn't describe it either.

  


  Search results seem to indicate that it's used as a catch all value to remove packets. with a codec_type of AVMEDIA_TYPE_NB ever exist ?

  


• avcodec/aacsbr : Fix type mismatch

  6 mai 2024, par Andreas Rheinhardt

  avcodec/aacsbr : Fix type mismatch
  ff_aac_sbr_apply() and ff_aac_sbr_apply_fixed() still used
  
  pointers to INTFLOAT which is float or int depending upon
  
  whether USE_FIXED is set or not ; in particular, according
  
  to these declarations both functions have the same type.
  
  But that is wrong and given that aacdec.c sets USE_FIXED,
  
  it sees the wrong type for ff_aac_sbr_apply().
  
  This leads to a -Wlto-type-mismatch warning when using lto [1].
  
  Fix this by avoiding INTFLOAT in aacsbr.h (which also means
  
  that aac_defines.h need not be included there any more).
  [1] : https://fate.ffmpeg.org/log.cgi?slot=x86_64-archlinux-gcc-lto&time=20240506022217&log=compile
  Reviewed-by : Lynne <dev@lynne.ee>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/aac/aacdec.c
  • [DH] libavcodec/aacsbr.h