Differenze tra le versioni di "Convertire i formati audio mediante il Componente gb.media"
(45 versioni intermedie di uno stesso utente non sono mostrate) | |||
Riga 4: | Riga 4: | ||
===Conversione audio dal formato WAV al formato MP3=== | ===Conversione audio dal formato WAV al formato MP3=== | ||
+ | Private Const QUALITY As String = "quality" | ||
+ | Private Const BITRATE As String = "bitrate" | ||
Private bo As Boolean | Private bo As Boolean | ||
− | + | Public Sub Main() | |
− | Dim fileaudio | + | Dim fileaudio As String |
Dim pl As MediaPipeline | Dim pl As MediaPipeline | ||
Dim src, wprs, cnv, lam, snk As MediaControl | Dim src, wprs, cnv, lam, snk As MediaControl | ||
− | fileaudio = "<FONT Color= | + | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.wav''</font>" |
− | |||
− | |||
pl = New MediaPipeline As "PLine" | pl = New MediaPipeline As "PLine" | ||
Riga 25: | Riga 25: | ||
cnv = New MediaControl(pl, "<FONT Color=#B22222>audioconvert</font>") | cnv = New MediaControl(pl, "<FONT Color=#B22222>audioconvert</font>") | ||
lam = New MediaControl(pl, "<FONT Color=#B22222>lamemp3enc</font>") | lam = New MediaControl(pl, "<FONT Color=#B22222>lamemp3enc</font>") | ||
+ | lam["target"] = BITRATE <FONT Color=gray>' ''Imposta il Bitrate.''</font> | ||
+ | lam["cbr"] = True <FONT Color=gray>' ''Imposta il Bitrate "Costante".''</font> | ||
+ | lam["bitrate"] = 192 <FONT Color=gray>' ''Imposta il valore del Bitrate "Costante".''</font> | ||
snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
− | snk["location"] = | + | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" |
<FONT Color=gray>' ''Collega fra loro all'interno della pipeline gli oggetti MediaControl impostati:''</font> | <FONT Color=gray>' ''Collega fra loro all'interno della pipeline gli oggetti MediaControl impostati:''</font> | ||
Riga 36: | Riga 39: | ||
pl.Play() | pl.Play() | ||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | ||
Repeat | Repeat | ||
− | Write "\r\e[0mTempo | + | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) |
Wait 0.01 | Wait 0.01 | ||
− | Until bo | + | Until bo |
− | |||
− | |||
+ | <FONT Color=darkgray>' ''E' necessario prevedere sia il Metodo ".Stop" che il Metodo ".Close" della Classe "MediaPipeline", per evitare di ottenere un file audio vuoto:''</font> | ||
pl.Stop | pl.Stop | ||
pl.Close | pl.Close | ||
Riga 50: | Riga 55: | ||
Print "\n\e[0mConversione terminata !" | Print "\n\e[0mConversione terminata !" | ||
− | + | End | |
− | |||
− | + | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | |
bo = True | bo = True | ||
− | + | End | |
Riga 65: | Riga 69: | ||
− | + | Public Sub Main() | |
− | Dim fileaudio | + | Dim fileaudio As String |
Dim pl As MediaPipeline | Dim pl As MediaPipeline | ||
Dim src, wprs, cnv, vor, mux, snk As MediaControl | Dim src, wprs, cnv, vor, mux, snk As MediaControl | ||
− | fileaudio = "<FONT Color= | + | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.wav''</font>" |
− | + | ||
− | |||
− | |||
pl = New MediaPipeline As "PLine" | pl = New MediaPipeline As "PLine" | ||
Riga 85: | Riga 87: | ||
mux = New MediaControl(pl, "<FONT Color=#B22222>oggmux</font>") | mux = New MediaControl(pl, "<FONT Color=#B22222>oggmux</font>") | ||
snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
− | snk["location"] = | + | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" |
src.LinkTo(wprs) | src.LinkTo(wprs) | ||
Riga 95: | Riga 97: | ||
pl.Play() | pl.Play() | ||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato WAV al formato AAC=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, wav, cnv, aac, snk As MediaControl | ||
+ | Dim flt As MediaFilter | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.wav''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | wav = New MediaControl(pl, "wavparse") | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | aac = New MediaControl(pl, "faac") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".aac" | ||
+ | |||
+ | src.LinkTo(wav) | ||
+ | wav.LinkTo(cnv) | ||
+ | cnv.LinkTo(aac) | ||
+ | aac.LinkTo(flt) | ||
+ | flt.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | |||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato WAV al formato OPUS-Ogg=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, wav, cnv, res, opu, mux, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.wav''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | wav = New MediaControl(pl, "<FONT Color=#B22222>wavparse</font>") | ||
+ | cnv = New MediaControl(pl, "<FONT Color=#B22222>audioconvert</font>") | ||
+ | res = New MediaControl(pl, "<FONT Color=#B22222>audioresample</font>") | ||
+ | opu = New MediaControl(pl, "<FONT Color=#B22222>opusenc</font>") | ||
+ | opu["bitrate"] = 64000 | ||
+ | mux = New MediaControl(pl, "<FONT Color=#B22222>oggmux</font>") | ||
+ | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".opus" | ||
+ | |||
+ | src.LinkTo(wav) | ||
+ | wav.LinkTo(cnv) | ||
+ | cnv.LinkTo(res) | ||
+ | res.LinkTo(opu) | ||
+ | opu.LinkTo(mux) | ||
+ | mux.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | ||
Repeat | Repeat | ||
− | Write "\r\e[0mTempo | + | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) |
Wait 0.01 | Wait 0.01 | ||
− | Until bo | + | Until bo |
− | |||
pl.Stop | pl.Stop | ||
pl.Close | pl.Close | ||
Riga 107: | Riga 228: | ||
Print "\n\e[0mConversione terminata !" | Print "\n\e[0mConversione terminata !" | ||
− | + | End | |
− | |||
− | ''' | + | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> |
bo = True | bo = True | ||
− | + | End | |
Riga 122: | Riga 242: | ||
− | + | Public Sub Main() | |
− | Dim fileaudio | + | Dim fileaudio As String |
Dim pl As MediaPipeline | Dim pl As MediaPipeline | ||
Dim src, map, mad, vor, mux, snk As MediaControl | Dim src, map, mad, vor, mux, snk As MediaControl | ||
− | |||
− | |||
− | + | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.mp3''</font>" | |
pl = New MediaPipeline As "PLine" | pl = New MediaPipeline As "PLine" | ||
Riga 136: | Riga 254: | ||
src = New MediaControl(pl, "filesrc") | src = New MediaControl(pl, "filesrc") | ||
src["location"] = fileaudio | src["location"] = fileaudio | ||
− | + | ||
map = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | map = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | ||
mad = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | mad = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | ||
Riga 142: | Riga 260: | ||
mux = New MediaControl(pl, "<FONT Color=#B22222>oggmux</font>") | mux = New MediaControl(pl, "<FONT Color=#B22222>oggmux</font>") | ||
snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
− | snk["location"] = | + | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" |
− | + | ||
src.LinkTo(map) | src.LinkTo(map) | ||
map.LinkTo(mad) | map.LinkTo(mad) | ||
Riga 151: | Riga 269: | ||
pl.Play() | pl.Play() | ||
− | + | ||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | ||
Repeat | Repeat | ||
− | Write "\r\e[0mTempo | + | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) |
Wait 0.01 | Wait 0.01 | ||
− | Until bo | + | Until bo |
− | |||
− | |||
pl.Stop | pl.Stop | ||
Riga 165: | Riga 284: | ||
Print "\n\e[0mConversione terminata !" | Print "\n\e[0mConversione terminata !" | ||
− | + | End | |
− | |||
− | ''' | + | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> |
bo = True | bo = True | ||
− | + | End | |
Riga 180: | Riga 298: | ||
− | + | Public Sub Main() | |
− | Dim fileaudio | + | Dim fileaudio As String |
Dim pl As MediaPipeline | Dim pl As MediaPipeline | ||
Dim src, map, mad, wav, snk As MediaControl | Dim src, map, mad, wav, snk As MediaControl | ||
− | fileaudio = "<FONT Color= | + | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.mp3''</font>" |
− | + | pl = New MediaPipeline As "PLine" | |
− | |||
− | |||
src = New MediaControl(pl, "filesrc") | src = New MediaControl(pl, "filesrc") | ||
src["location"] = fileaudio | src["location"] = fileaudio | ||
− | + | ||
map = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | map = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | ||
mad = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | mad = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | ||
wav = New MediaControl(pl, "<FONT Color=#B22222>wavenc</font>") | wav = New MediaControl(pl, "<FONT Color=#B22222>wavenc</font>") | ||
snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
− | snk["location"] = | + | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" |
− | + | ||
src.LinkTo(map) | src.LinkTo(map) | ||
map.LinkTo(mad) | map.LinkTo(mad) | ||
mad.LinkTo(wav) | mad.LinkTo(wav) | ||
wav.LinkTo(snk) | wav.LinkTo(snk) | ||
− | + | ||
pl.Play() | pl.Play() | ||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | ||
Repeat | Repeat | ||
− | Write "\r\e[0mTempo | + | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) |
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato MP3 al formato AAC=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, map, mad, aac, snk As MediaControl | ||
+ | Dim flt As MediaFilter | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.mp3''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | map = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | ||
+ | mad = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | ||
+ | aac = New MediaControl(pl, "faac") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".aac" | ||
+ | |||
+ | src.LinkTo(map) | ||
+ | map.LinkTo(mad) | ||
+ | mad.LinkTo(aac) | ||
+ | aac.LinkTo(flt) | ||
+ | flt.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
Wait 0.01 | Wait 0.01 | ||
− | + | Wend | |
+ | Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) | ||
− | + | Repeat | |
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
pl.Stop | pl.Stop | ||
Riga 221: | Riga 395: | ||
Print "\n\e[0mConversione terminata !" | Print "\n\e[0mConversione terminata !" | ||
− | + | End | |
− | |||
− | ''' | + | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> |
bo = True | bo = True | ||
− | + | End | |
Riga 237: | Riga 410: | ||
− | + | Public Sub Main() | |
− | + | ||
− | Dim fileaudio | + | Dim fileaudio As String |
Dim pl As MediaPipeline | Dim pl As MediaPipeline | ||
Dim src, par, dcd, snk As MediaControl | Dim src, par, dcd, snk As MediaControl | ||
− | Dim | + | Dim flt As MediaFilter |
− | |||
− | |||
− | + | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.mp3''</font>" | |
pl = New MediaPipeline As "PLine" | pl = New MediaPipeline As "PLine" | ||
Riga 252: | Riga 423: | ||
src = New MediaControl(pl, "filesrc") | src = New MediaControl(pl, "filesrc") | ||
src["location"] = fileaudio | src["location"] = fileaudio | ||
− | + | ||
par = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | par = New MediaControl(pl, "<FONT Color=#B22222>mpegaudioparse</font>") | ||
dcd = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | dcd = New MediaControl(pl, "<FONT Color=#B22222>mpg123audiodec</font>") | ||
− | + | flt = New MediaFilter(pl, "<FONT Color=#B22222>audio/x-raw, format=S16LE, rate=44100, channels=2, endianness=1234, width=16, depth=16</font>") | |
snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
− | snk["location"] = | + | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".raw" |
src.LinkTo(par) | src.LinkTo(par) | ||
par.LinkTo(dcd) | par.LinkTo(dcd) | ||
− | dcd.LinkTo( | + | dcd.LinkTo(flt) |
− | + | flt.LinkTo(snk) | |
pl.Play() | pl.Play() | ||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | ||
Repeat | Repeat | ||
− | Write "\r\e[0mTempo | + | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) |
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato OGG-Vorbis al formato MP3=== | ||
+ | Private Const QUALITY As String = "quality" | ||
+ | Private Const BITRATE As String = "bitrate" | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, ogg, vor, cnv, lam, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.ogg''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | ogg = New MediaControl(pl, "oggdemux") | ||
+ | vor = New MediaControl(pl, "vorbisdec") | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | lam = New MediaControl(pl, "lamemp3enc") | ||
+ | lam["target"] = BITRATE ' Imposta il Bitrate. | ||
+ | lam["cbr"] = True ' Imposta il Bitrate "Costante". | ||
+ | lam["bitrate"] = 192 ' Imposta il valore del Bitrate "Costante". | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" | ||
+ | |||
+ | src.LinkTo(ogg) | ||
+ | ogg.LinkLaterTo(vor) | ||
+ | vor.LinkTo(cnv) | ||
+ | cnv.LinkTo(lam) | ||
+ | lam.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | |||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato OGG-Vorbis al formato AAC=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, ogg, vor, con, aac, snk As MediaControl | ||
+ | Dim flt As MediaFilter | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.ogg''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | ogg = New MediaControl(pl, "oggdemux") | ||
+ | vor = New MediaControl(pl, "vorbisdec") | ||
+ | con = New MediaControl(pl, "audioconvert") | ||
+ | aac = New MediaControl(pl, "faac") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".acc" | ||
+ | |||
+ | src.LinkTo(ogg) | ||
+ | ogg.LinkLaterTo(vor) | ||
+ | vor.LinkTo(con) | ||
+ | con.LinkTo(aac) | ||
+ | aac.LinkTo(flt) | ||
+ | flt.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | |||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato RAW al formato WAV=== | ||
+ | Il seguente codice prevede che i dati del file audio [https://it.wikipedia.org/wiki/Formato_Audio_RAW RAW] abbiano le seguenti caratteristiche: frequenza di campionamento = 44100; numero di canali = 2; modalità ''interleaved'' e [https://gstreamer.freedesktop.org/documentation/audio/audio-format.html?gi-language=c#GstAudioFormat formato-pcm] = S16LE. | ||
+ | Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, raw, wav, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/raw''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | raw = New MediaControl(pl, "rawaudioparse") | ||
+ | raw["interleaved"] = True | ||
+ | raw["num-channels"] = 2 | ||
+ | raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE | ||
+ | raw["sample-rate"] = 44100 | ||
+ | wav = New MediaControl(pl, "wavenc") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" | ||
+ | |||
+ | src.LinkTo(raw) | ||
+ | raw.LinkTo(wav) | ||
+ | wav.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato RAW al formato MP3=== | ||
+ | Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 | ||
+ | Private Const QUALITY As String = "quality" | ||
+ | Private Const BITRATE As String = "bitrate" | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, raw, lam, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/raw''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | raw = New MediaControl(pl, "rawaudioparse") | ||
+ | raw["interleaved"] = True | ||
+ | raw["num-channels"] = 2 | ||
+ | raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE | ||
+ | raw["sample-rate"] = 44100 | ||
+ | lam = New MediaControl(pl, "lamemp3enc") | ||
+ | lam["target"] = BITRATE <FONT Color=gray>' ''Imposta il Bitrate''</font> | ||
+ | lam["cbr"] = True <FONT Color=gray>' ''Imposta il Bitrate "Costante"''</font> | ||
+ | lam["bitrate"] = 192 <FONT Color=gray>' ''Imposta il valore del Bitrate "Costante"''</font> | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" | ||
+ | |||
+ | src.LinkTo(raw) | ||
+ | raw.LinkTo(lam) | ||
+ | lam.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato RAW al formato OGG-Vorbis=== | ||
+ | Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, raw, cnv, vor, mux, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/raw''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | raw = New MediaControl(pl, "rawaudioparse") | ||
+ | raw["interleaved"] = True | ||
+ | raw["num-channels"] = 2 | ||
+ | raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE | ||
+ | raw["sample-rate"] = 44100 | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | vor = New MediaControl(pl, "vorbisenc") | ||
+ | mux = New MediaControl(pl, "oggmux") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" | ||
+ | |||
+ | src.LinkTo(raw) | ||
+ | raw.LinkTo(cnv) | ||
+ | cnv.LinkTo(vor) | ||
+ | vor.LinkTo(mux) | ||
+ | mux.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato RAW al formato AAC=== | ||
+ | Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, raw, aac, snk As MediaControl | ||
+ | Dim flt As MediaFilter | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/raw''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | |||
+ | raw = New MediaControl(pl, "rawaudioparse") | ||
+ | raw["interleaved"] = True | ||
+ | raw["num-channels"] = 2 | ||
+ | raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE | ||
+ | raw["sample-rate"] = 44100 | ||
+ | aac = New MediaControl(pl, "faac") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".aac" | ||
+ | |||
+ | src.LinkTo(raw) | ||
+ | raw.LinkTo(aac) | ||
+ | aac.LinkTo(flt) | ||
+ | flt.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato FLAC al formato WAV=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, flp, fld, wav, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/flac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | flp = New MediaControl(pl, "flacparse") | ||
+ | fld = New MediaControl(pl, "flacdec") | ||
+ | wav = New MediaControl(pl, "wavenc") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" | ||
+ | |||
+ | src.LinkTo(flp) | ||
+ | flp.LinkTo(fld) | ||
+ | fld.LinkTo(wav) | ||
+ | wav.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file Flac: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato FLAC al formato MP3=== | ||
+ | Private Const QUALITY As String = "quality" | ||
+ | Private Const BITRATE As String = "bitrate" | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, flp, fld, lam, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/flac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | flp = New MediaControl(pl, "flacparse") | ||
+ | fld = New MediaControl(pl, "flacdec") | ||
+ | lam = New MediaControl(pl, "lamemp3enc") | ||
+ | lam["target"] = BITRATE | ||
+ | lam["cbr"] = True | ||
+ | lam["bitrate"] = 192 | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" | ||
+ | |||
+ | src.LinkTo(flp) | ||
+ | flp.LinkTo(fld) | ||
+ | fld.LinkTo(lam) | ||
+ | lam.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file Flac: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato FLAC al formato OGG-Vorbis=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, flp, fld, cnv, vor, mux, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/flac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | flp = New MediaControl(pl, "flacparse") | ||
+ | fld = New MediaControl(pl, "flacdec") | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | vor = New MediaControl(pl, "vorbisenc") | ||
+ | mux = New MediaControl(pl, "oggmux") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" | ||
+ | |||
+ | src.LinkTo(flp) | ||
+ | flp.LinkTo(fld) | ||
+ | fld.LinkTo(cnv) | ||
+ | cnv.LinkTo(vor) | ||
+ | vor.LinkTo(mux) | ||
+ | mux.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file flac: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato AAC al formato WAV=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aac, wav, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | aac = New MediaControl(pl, "faad") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | wav = New MediaControl(pl, "wavenc") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" | ||
+ | |||
+ | src.LinkTo(aac) | ||
+ | aac.LinkTo(wav) | ||
+ | wav.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file aac: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
Wait 0.01 | Wait 0.01 | ||
− | Until bo = True | + | Until bo |
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato AAC al formato MP3=== | ||
+ | Private Const QUALITY As String = "quality" | ||
+ | Private Const BITRATE As String = "bitrate" | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aac, lam, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
− | + | src = New MediaControl(pl, "filesrc") | |
+ | src["location"] = fileaudio | ||
+ | aac = New MediaControl(pl, "faad") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | lam = New MediaControl(pl, "lamemp3enc") | ||
+ | lam["target"] = BITRATE | ||
+ | lam["cbr"] = True | ||
+ | lam["bitrate"] = 192 | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" | ||
+ | |||
+ | src.LinkTo(aac) | ||
+ | aac.LinkTo(lam) | ||
+ | lam.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file Acc: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
pl.Stop | pl.Stop | ||
pl.Close | pl.Close | ||
Riga 279: | Riga 1 076: | ||
Print "\n\e[0mConversione terminata !" | Print "\n\e[0mConversione terminata !" | ||
− | + | End | |
− | |||
− | ''' | + | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> |
bo = True | bo = True | ||
− | + | ||
− | '''End''' | + | End |
+ | |||
+ | |||
+ | ===Conversione audio dal formato AAC al formato OGG-Vorbis=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aac, cnv, vor, mux, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | aac = New MediaControl(pl, "faad") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | vor = New MediaControl(pl, "vorbisenc") | ||
+ | mux = New MediaControl(pl, "oggmux") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" | ||
+ | |||
+ | src.LinkTo(aac) | ||
+ | aac.LinkTo(cnv) | ||
+ | cnv.LinkTo(vor) | ||
+ | vor.LinkTo(mux) | ||
+ | mux.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file aac: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato AAC al formato RAW=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aac, snk As MediaControl | ||
+ | Dim flt As MediaFilter | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aac''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | aac = New MediaControl(pl, "faad") <FONT Color=gray>' ''oppure anche "'''voaacenc'''"''</font> | ||
+ | flt = New MediaFilter(pl, "audio/x-raw, format=S16LE, rate=44100, channels=2, endianness=1234, width=16, depth=16") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".raw" | ||
+ | |||
+ | src.LinkTo(aac) | ||
+ | aac.LinkTo(flt) | ||
+ | flt.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file aac: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato AIFF al formato WAV=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aif, cnv, wav, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aiff''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | aif = New MediaControl(pl, "aiffparse") | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | wav = New MediaControl(pl, "wavenc") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" | ||
+ | |||
+ | src.LinkTo(aif) | ||
+ | aif.LinkTo(cnv) | ||
+ | cnv.LinkTo(wav) | ||
+ | wav.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file aiff: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato AIFF al formato MP3=== | ||
+ | Private Const QUALITY As String = "quality" | ||
+ | Private Const BITRATE As String = "bitrate" | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aif, cnv, lam, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aiff''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | aac = New MediaControl(pl, "aiffparse") | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | lam = New MediaControl(pl, "lamemp3enc") | ||
+ | lam["target"] = BITRATE | ||
+ | lam["cbr"] = True | ||
+ | lam["bitrate"] = 192 | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" | ||
+ | |||
+ | src.LinkTo(aif) | ||
+ | aif.LinkTo(cnv) | ||
+ | cnv.LinkTo(lam) | ||
+ | lam.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file aiff: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | ===Conversione audio dal formato AIFF al formato OGG-Vorbis=== | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, aif, cnv, vor, mux, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file/aiff''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | aac = New MediaControl(pl, "aiffparse") | ||
+ | cnv = New MediaControl(pl, "audioconvert") | ||
+ | vor = New MediaControl(pl, "vorbisenc") | ||
+ | mux = New MediaControl(pl, "oggmux") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" | ||
+ | |||
+ | src.LinkTo(aif) | ||
+ | aif.LinkTo(cnv) | ||
+ | cnv.LinkTo(vor) | ||
+ | vor.LinkTo(mux) | ||
+ | mux.LinkTo(snk) | ||
+ | |||
+ | pl.Play() | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file aiff: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
+ | |||
+ | |||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | |||
===Conversione audio con il plugin "decodebin"=== | ===Conversione audio con il plugin "decodebin"=== | ||
Usando il plugin "decodebin" è possibile convertire qualsiasi formato audio in un altro desiderato. | Usando il plugin "decodebin" è possibile convertire qualsiasi formato audio in un altro desiderato. | ||
− | <BR>Mostriamo un esempio, nel quale sarà convertito un file audio "OGG" in un file audio "WAV": | + | <BR>Mostriamo un esempio, nel quale sarà convertito un file audio "OGG" in un file audio "WAV", avente il seguente formato: frequenza di campionamento = 44100, risoluzione = 16 bit, canali = 2. |
Private bo As Boolean | Private bo As Boolean | ||
− | + | Public Sub Main() | |
− | Dim fileaudio | + | Dim fileaudio As String |
Dim pl As MediaPipeline | Dim pl As MediaPipeline | ||
− | Dim src, dcb, con, wav, snk As MediaControl | + | Dim src, dcb, con, flt, wav, snk As MediaControl |
− | fileaudio = "<FONT Color= | + | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.ogg''</font>" |
− | |||
− | |||
pl = New MediaPipeline As "PLine" | pl = New MediaPipeline As "PLine" | ||
Riga 313: | Riga 1 381: | ||
dcb = New MediaControl(pl, "<FONT Color=#B22222>decodebin</font>") | dcb = New MediaControl(pl, "<FONT Color=#B22222>decodebin</font>") | ||
con = New MediaControl(pl, "<FONT Color=#B22222>audioconvert</font>") | con = New MediaControl(pl, "<FONT Color=#B22222>audioconvert</font>") | ||
+ | flt = New MediaFilter(pl, "<FONT Color=#B22222>audio/x-raw, format=S16LE, rate=44100, channels=2, depth=16</font>") | ||
wav = New MediaControl(pl, "<FONT Color=#B22222>wavenc</font>") | wav = New MediaControl(pl, "<FONT Color=#B22222>wavenc</font>") | ||
snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | snk = New MediaControl(pl, "<FONT Color=#B22222>filesink</font>") | ||
− | snk["location"] = | + | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" |
src.LinkTo(dcb) | src.LinkTo(dcb) | ||
dcb.LinkLaterTo(con) | dcb.LinkLaterTo(con) | ||
− | con.LinkTo(wav) | + | con.LinkTo(flt) |
+ | flt.LinkTo(wav) | ||
wav.LinkTo(snk) | wav.LinkTo(snk) | ||
− | + | ||
pl.Play() | pl.Play() | ||
Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) | Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) | ||
Repeat | Repeat | ||
− | Write "\r\e[0mTempo | + | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) |
Wait 0.01 | Wait 0.01 | ||
− | Until bo | + | Until bo |
+ | |||
+ | pl.Stop | ||
+ | pl.Close | ||
+ | |||
+ | Print "\n\e[0mConversione terminata !" | ||
+ | |||
+ | End | ||
− | + | ||
+ | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> | ||
+ | |||
+ | bo = True | ||
+ | |||
+ | End | ||
+ | Se si vuole convertire in un file avente caratteristiche (frequenza di campionamento, numero dei canali, risoluzione in bit) dei propri campioni audio diverse da quelle del file originario, da convertire, allora si dovranno usare l'elemento "audioresample" e la Classe ''MediaFilter''. | ||
+ | |||
+ | Mostriamo un esempio pratico, nel quale si convertirà un file MP3 in un file WAV avente frequenza di campionamento uguale a 22050 hertz e risoluzione a 8 bit: | ||
+ | Private bo As Boolean | ||
+ | |||
+ | |||
+ | Public Sub Main() | ||
+ | |||
+ | Dim fileaudio As String | ||
+ | Dim pl As MediaPipeline | ||
+ | Dim src, dcb, con, res, flt, wav, snk As MediaControl | ||
+ | |||
+ | fileaudio = "<FONT Color=darkgreen>''/percorso/del/file.mp3''</font>" | ||
+ | |||
+ | pl = New MediaPipeline As "PLine" | ||
+ | |||
+ | src = New MediaControl(pl, "filesrc") | ||
+ | src["location"] = fileaudio | ||
+ | dcb = New MediaControl(pl, "decodebin") | ||
+ | con = New MediaControl(pl, "audioconvert") | ||
+ | res = New MediaControl(pl, "audioresample") <FONT Color=gray>' ''Consente di modificare le caratteristiche del file audio''</font> | ||
+ | flt = New MediaFilter(pl, "audio/x-raw,rate=22050,format=U8") | ||
+ | wav = New MediaFilter(pl, "wavenc") | ||
+ | snk = New MediaControl(pl, "filesink") | ||
+ | snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" | ||
+ | |||
+ | src.LinkTo(dcb) | ||
+ | dcb.LinkLaterTo(con) | ||
+ | con.LinkTo(res) | ||
+ | res.LinkTo(flt) | ||
+ | flt.LinkTo(wav) | ||
+ | wav.LinkTo(snk) | ||
+ | |||
+ | pl.play | ||
+ | |||
+ | While pl.Duration < 1 | ||
+ | Wait 0.01 | ||
+ | Wend | ||
+ | Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) | ||
+ | Repeat | ||
+ | Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) | ||
+ | Wait 0.01 | ||
+ | Until bo | ||
pl.Stop | pl.Stop | ||
Riga 337: | Riga 1 462: | ||
Print "\n\e[0mConversione terminata !" | Print "\n\e[0mConversione terminata !" | ||
− | + | End | |
− | |||
− | ''' | + | Public Sub PLine_End() <FONT Color=gray>' ''Questo Evento viene sollevato, quando la conversione è terminata''</font> |
bo = True | bo = True | ||
− | + | ||
− | + | End |
Versione attuale delle 04:23, 22 lug 2024
Utilizzando i plugin di GStreamer con le Classi MediaControl e MediaPipeline del Componente gb.media, è possibile effettuare diverse conversioni di file audio da un formato ad un altro.
Mostriamo di seguito qualche esempio pratico.
Indice
- 1 Conversione audio dal formato WAV al formato MP3
- 2 Conversione audio dal formato WAV al formato OGG
- 3 Conversione audio dal formato WAV al formato AAC
- 4 Conversione audio dal formato WAV al formato OPUS-Ogg
- 5 Conversione audio dal formato MP3 al formato OGG
- 6 Conversione audio dal formato MP3 al formato WAV
- 7 Conversione audio dal formato MP3 al formato AAC
- 8 Conversione audio dal formato MP3 al formato RAW
- 9 Conversione audio dal formato OGG-Vorbis al formato MP3
- 10 Conversione audio dal formato OGG-Vorbis al formato AAC
- 11 Conversione audio dal formato RAW al formato WAV
- 12 Conversione audio dal formato RAW al formato MP3
- 13 Conversione audio dal formato RAW al formato OGG-Vorbis
- 14 Conversione audio dal formato RAW al formato AAC
- 15 Conversione audio dal formato FLAC al formato WAV
- 16 Conversione audio dal formato FLAC al formato MP3
- 17 Conversione audio dal formato FLAC al formato OGG-Vorbis
- 18 Conversione audio dal formato AAC al formato WAV
- 19 Conversione audio dal formato AAC al formato MP3
- 20 Conversione audio dal formato AAC al formato OGG-Vorbis
- 21 Conversione audio dal formato AAC al formato RAW
- 22 Conversione audio dal formato AIFF al formato WAV
- 23 Conversione audio dal formato AIFF al formato MP3
- 24 Conversione audio dal formato AIFF al formato OGG-Vorbis
- 25 Conversione audio con il plugin "decodebin"
Conversione audio dal formato WAV al formato MP3
Private Const QUALITY As String = "quality" Private Const BITRATE As String = "bitrate" Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, wprs, cnv, lam, snk As MediaControl fileaudio = "/percorso/del/file.wav" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio wprs = New MediaControl(pl, "wavparse") cnv = New MediaControl(pl, "audioconvert") lam = New MediaControl(pl, "lamemp3enc") lam["target"] = BITRATE ' Imposta il Bitrate. lam["cbr"] = True ' Imposta il Bitrate "Costante". lam["bitrate"] = 192 ' Imposta il valore del Bitrate "Costante". snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" ' Collega fra loro all'interno della pipeline gli oggetti MediaControl impostati: src.LinkTo(wprs) wprs.LinkTo(cnv) cnv.LinkTo(lam) lam.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo ' E' necessario prevedere sia il Metodo ".Stop" che il Metodo ".Close" della Classe "MediaPipeline", per evitare di ottenere un file audio vuoto: pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato WAV al formato OGG
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, wprs, cnv, vor, mux, snk As MediaControl fileaudio = "/percorso/del/file.wav" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio wprs = New MediaControl(pl, "wavparse") cnv = New MediaControl(pl, "audioconvert") vor = New MediaControl(pl, "vorbisenc") mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" src.LinkTo(wprs) wprs.LinkTo(cnv) cnv.LinkTo(vor) vor.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato WAV al formato AAC
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, wav, cnv, aac, snk As MediaControl Dim flt As MediaFilter fileaudio = "/percorso/del/file.wav" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio wav = New MediaControl(pl, "wavparse") cnv = New MediaControl(pl, "audioconvert") aac = New MediaControl(pl, "faac") ' oppure anche "voaacenc" flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".aac" src.LinkTo(wav) wav.LinkTo(cnv) cnv.LinkTo(aac) aac.LinkTo(flt) flt.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato WAV al formato OPUS-Ogg
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, wav, cnv, res, opu, mux, snk As MediaControl fileaudio = "/percorso/del/file.wav" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio wav = New MediaControl(pl, "wavparse") cnv = New MediaControl(pl, "audioconvert") res = New MediaControl(pl, "audioresample") opu = New MediaControl(pl, "opusenc") opu["bitrate"] = 64000 mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".opus" src.LinkTo(wav) wav.LinkTo(cnv) cnv.LinkTo(res) res.LinkTo(opu) opu.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato MP3 al formato OGG
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, map, mad, vor, mux, snk As MediaControl fileaudio = "/percorso/del/file.mp3" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio map = New MediaControl(pl, "mpegaudioparse") mad = New MediaControl(pl, "mpg123audiodec") vor = New MediaControl(pl, "vorbisenc") mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" src.LinkTo(map) map.LinkTo(mad) mad.LinkTo(vor) vor.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato MP3 al formato WAV
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, map, mad, wav, snk As MediaControl fileaudio = "/percorso/del/file.mp3" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio map = New MediaControl(pl, "mpegaudioparse") mad = New MediaControl(pl, "mpg123audiodec") wav = New MediaControl(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(map) map.LinkTo(mad) mad.LinkTo(wav) wav.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato MP3 al formato AAC
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, map, mad, aac, snk As MediaControl Dim flt As MediaFilter fileaudio = "/percorso/del/file.mp3" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio map = New MediaControl(pl, "mpegaudioparse") mad = New MediaControl(pl, "mpg123audiodec") aac = New MediaControl(pl, "faac") ' oppure anche "voaacenc" flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".aac" src.LinkTo(map) map.LinkTo(mad) mad.LinkTo(aac) aac.LinkTo(flt) flt.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file wav: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato MP3 al formato RAW
Con il seguente codice si otterranno da un file MP3 i dati audio grezzi nel formato: frequenza di campionamento = 44100, risoluzione = 16 bit, canali = 2.
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, par, dcd, snk As MediaControl Dim flt As MediaFilter fileaudio = "/percorso/del/file.mp3" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio par = New MediaControl(pl, "mpegaudioparse") dcd = New MediaControl(pl, "mpg123audiodec") flt = New MediaFilter(pl, "audio/x-raw, format=S16LE, rate=44100, channels=2, endianness=1234, width=16, depth=16") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".raw" src.LinkTo(par) par.LinkTo(dcd) dcd.LinkTo(flt) flt.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato OGG-Vorbis al formato MP3
Private Const QUALITY As String = "quality" Private Const BITRATE As String = "bitrate" Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, ogg, vor, cnv, lam, snk As MediaControl fileaudio = "/percorso/del/file.ogg" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio ogg = New MediaControl(pl, "oggdemux") vor = New MediaControl(pl, "vorbisdec") cnv = New MediaControl(pl, "audioconvert") lam = New MediaControl(pl, "lamemp3enc") lam["target"] = BITRATE ' Imposta il Bitrate. lam["cbr"] = True ' Imposta il Bitrate "Costante". lam["bitrate"] = 192 ' Imposta il valore del Bitrate "Costante". snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" src.LinkTo(ogg) ogg.LinkLaterTo(vor) vor.LinkTo(cnv) cnv.LinkTo(lam) lam.LinkTo(snk) pl.Play() Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato OGG-Vorbis al formato AAC
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, ogg, vor, con, aac, snk As MediaControl Dim flt As MediaFilter fileaudio = "/percorso/del/file.ogg" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio ogg = New MediaControl(pl, "oggdemux") vor = New MediaControl(pl, "vorbisdec") con = New MediaControl(pl, "audioconvert") aac = New MediaControl(pl, "faac") ' oppure anche "voaacenc" flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".acc" src.LinkTo(ogg) ogg.LinkLaterTo(vor) vor.LinkTo(con) con.LinkTo(aac) aac.LinkTo(flt) flt.LinkTo(snk) pl.Play() Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato RAW al formato WAV
Il seguente codice prevede che i dati del file audio RAW abbiano le seguenti caratteristiche: frequenza di campionamento = 44100; numero di canali = 2; modalità interleaved e formato-pcm = S16LE.
Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, raw, wav, snk As MediaControl fileaudio = "/percorso/del/file/raw" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio raw = New MediaControl(pl, "rawaudioparse") raw["interleaved"] = True raw["num-channels"] = 2 raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE raw["sample-rate"] = 44100 wav = New MediaControl(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(raw) raw.LinkTo(wav) wav.LinkTo(snk) pl.Play() Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato RAW al formato MP3
Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 Private Const QUALITY As String = "quality" Private Const BITRATE As String = "bitrate" Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, raw, lam, snk As MediaControl fileaudio = "/percorso/del/file/raw" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio raw = New MediaControl(pl, "rawaudioparse") raw["interleaved"] = True raw["num-channels"] = 2 raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE raw["sample-rate"] = 44100 lam = New MediaControl(pl, "lamemp3enc") lam["target"] = BITRATE ' Imposta il Bitrate lam["cbr"] = True ' Imposta il Bitrate "Costante" lam["bitrate"] = 192 ' Imposta il valore del Bitrate "Costante" snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" src.LinkTo(raw) raw.LinkTo(lam) lam.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato RAW al formato OGG-Vorbis
Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, raw, cnv, vor, mux, snk As MediaControl fileaudio = "/percorso/del/file/raw" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio raw = New MediaControl(pl, "rawaudioparse") raw["interleaved"] = True raw["num-channels"] = 2 raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE raw["sample-rate"] = 44100 cnv = New MediaControl(pl, "audioconvert") vor = New MediaControl(pl, "vorbisenc") mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" src.LinkTo(raw) raw.LinkTo(cnv) cnv.LinkTo(vor) vor.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato RAW al formato AAC
Private Const GST_AUDIO_FORMAT_S16LE As Integer = 4 Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, raw, aac, snk As MediaControl Dim flt As MediaFilter fileaudio = "/percorso/del/file/raw" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio raw = New MediaControl(pl, "rawaudioparse") raw["interleaved"] = True raw["num-channels"] = 2 raw["pcm-format"] = GST_AUDIO_FORMAT_S16LE raw["sample-rate"] = 44100 aac = New MediaControl(pl, "faac") ' oppure anche "voaacenc" flt = New MediaFilter(pl, "audio/mpeg,stream-format=adts,channels=2,rate=44100") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".aac" src.LinkTo(raw) raw.LinkTo(aac) aac.LinkTo(flt) flt.LinkTo(snk) pl.Play() Print "Durata del file raw: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato FLAC al formato WAV
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, flp, fld, wav, snk As MediaControl fileaudio = "/percorso/del/file/flac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio flp = New MediaControl(pl, "flacparse") fld = New MediaControl(pl, "flacdec") wav = New MediaControl(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(flp) flp.LinkTo(fld) fld.LinkTo(wav) wav.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file Flac: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato FLAC al formato MP3
Private Const QUALITY As String = "quality" Private Const BITRATE As String = "bitrate" Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, flp, fld, lam, snk As MediaControl fileaudio = "/percorso/del/file/flac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio flp = New MediaControl(pl, "flacparse") fld = New MediaControl(pl, "flacdec") lam = New MediaControl(pl, "lamemp3enc") lam["target"] = BITRATE lam["cbr"] = True lam["bitrate"] = 192 snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" src.LinkTo(flp) flp.LinkTo(fld) fld.LinkTo(lam) lam.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file Flac: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato FLAC al formato OGG-Vorbis
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, flp, fld, cnv, vor, mux, snk As MediaControl fileaudio = "/percorso/del/file/flac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio flp = New MediaControl(pl, "flacparse") fld = New MediaControl(pl, "flacdec") cnv = New MediaControl(pl, "audioconvert") vor = New MediaControl(pl, "vorbisenc") mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" src.LinkTo(flp) flp.LinkTo(fld) fld.LinkTo(cnv) cnv.LinkTo(vor) vor.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file flac: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AAC al formato WAV
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aac, wav, snk As MediaControl fileaudio = "/percorso/del/file/aac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aac = New MediaControl(pl, "faad") ' oppure anche "voaacenc" wav = New MediaControl(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(aac) aac.LinkTo(wav) wav.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file aac: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AAC al formato MP3
Private Const QUALITY As String = "quality" Private Const BITRATE As String = "bitrate" Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aac, lam, snk As MediaControl fileaudio = "/percorso/del/file/aac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aac = New MediaControl(pl, "faad") ' oppure anche "voaacenc" lam = New MediaControl(pl, "lamemp3enc") lam["target"] = BITRATE lam["cbr"] = True lam["bitrate"] = 192 snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" src.LinkTo(aac) aac.LinkTo(lam) lam.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file Acc: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AAC al formato OGG-Vorbis
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aac, cnv, vor, mux, snk As MediaControl fileaudio = "/percorso/del/file/aac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aac = New MediaControl(pl, "faad") ' oppure anche "voaacenc" cnv = New MediaControl(pl, "audioconvert") vor = New MediaControl(pl, "vorbisenc") mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" src.LinkTo(aac) aac.LinkTo(cnv) cnv.LinkTo(vor) vor.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file aac: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AAC al formato RAW
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aac, snk As MediaControl Dim flt As MediaFilter fileaudio = "/percorso/del/file/aac" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aac = New MediaControl(pl, "faad") ' oppure anche "voaacenc" flt = New MediaFilter(pl, "audio/x-raw, format=S16LE, rate=44100, channels=2, endianness=1234, width=16, depth=16") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".raw" src.LinkTo(aac) aac.LinkTo(flt) flt.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file aac: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AIFF al formato WAV
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aif, cnv, wav, snk As MediaControl fileaudio = "/percorso/del/file/aiff" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aif = New MediaControl(pl, "aiffparse") cnv = New MediaControl(pl, "audioconvert") wav = New MediaControl(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(aif) aif.LinkTo(cnv) cnv.LinkTo(wav) wav.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file aiff: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AIFF al formato MP3
Private Const QUALITY As String = "quality" Private Const BITRATE As String = "bitrate" Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aif, cnv, lam, snk As MediaControl fileaudio = "/percorso/del/file/aiff" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aac = New MediaControl(pl, "aiffparse") cnv = New MediaControl(pl, "audioconvert") lam = New MediaControl(pl, "lamemp3enc") lam["target"] = BITRATE lam["cbr"] = True lam["bitrate"] = 192 snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".mp3" src.LinkTo(aif) aif.LinkTo(cnv) cnv.LinkTo(lam) lam.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file aiff: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio dal formato AIFF al formato OGG-Vorbis
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, aif, cnv, vor, mux, snk As MediaControl fileaudio = "/percorso/del/file/aiff" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio aac = New MediaControl(pl, "aiffparse") cnv = New MediaControl(pl, "audioconvert") vor = New MediaControl(pl, "vorbisenc") mux = New MediaControl(pl, "oggmux") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".ogg" src.LinkTo(aif) aif.LinkTo(cnv) cnv.LinkTo(vor) vor.LinkTo(mux) mux.LinkTo(snk) pl.Play() While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file aiff: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Conversione audio con il plugin "decodebin"
Usando il plugin "decodebin" è possibile convertire qualsiasi formato audio in un altro desiderato.
Mostriamo un esempio, nel quale sarà convertito un file audio "OGG" in un file audio "WAV", avente il seguente formato: frequenza di campionamento = 44100, risoluzione = 16 bit, canali = 2.
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, dcb, con, flt, wav, snk As MediaControl fileaudio = "/percorso/del/file.ogg" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio dcb = New MediaControl(pl, "decodebin") con = New MediaControl(pl, "audioconvert") flt = New MediaFilter(pl, "audio/x-raw, format=S16LE, rate=44100, channels=2, depth=16") wav = New MediaControl(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(dcb) dcb.LinkLaterTo(con) con.LinkTo(flt) flt.LinkTo(wav) wav.LinkTo(snk) pl.Play() Print "Durata del file ogg: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End
Se si vuole convertire in un file avente caratteristiche (frequenza di campionamento, numero dei canali, risoluzione in bit) dei propri campioni audio diverse da quelle del file originario, da convertire, allora si dovranno usare l'elemento "audioresample" e la Classe MediaFilter.
Mostriamo un esempio pratico, nel quale si convertirà un file MP3 in un file WAV avente frequenza di campionamento uguale a 22050 hertz e risoluzione a 8 bit:
Private bo As Boolean Public Sub Main() Dim fileaudio As String Dim pl As MediaPipeline Dim src, dcb, con, res, flt, wav, snk As MediaControl fileaudio = "/percorso/del/file.mp3" pl = New MediaPipeline As "PLine" src = New MediaControl(pl, "filesrc") src["location"] = fileaudio dcb = New MediaControl(pl, "decodebin") con = New MediaControl(pl, "audioconvert") res = New MediaControl(pl, "audioresample") ' Consente di modificare le caratteristiche del file audio flt = New MediaFilter(pl, "audio/x-raw,rate=22050,format=U8") wav = New MediaFilter(pl, "wavenc") snk = New MediaControl(pl, "filesink") snk["location"] = "/tmp" &/ File.BaseName(fileaudio) & ".wav" src.LinkTo(dcb) dcb.LinkLaterTo(con) con.LinkTo(res) res.LinkTo(flt) flt.LinkTo(wav) wav.LinkTo(snk) pl.play While pl.Duration < 1 Wait 0.01 Wend Print "Durata del file mp3: "; Time(0, 0, 0, pl.Duration * 1000) Repeat Write "\r\e[0mTempo trascorso: \e[31m" & Time(0, 0, 0, pl.Position * 1000) Wait 0.01 Until bo pl.Stop pl.Close Print "\n\e[0mConversione terminata !" End Public Sub PLine_End() ' Questo Evento viene sollevato, quando la conversione è terminata bo = True End