net.sf.fmj.media.rtp.FormatInfo Maven / Gradle / Ivy
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Freedom for Media in Java
package net.sf.fmj.media.rtp;
import javax.media.*;
import javax.media.format.*;
public class FormatInfo
{
public static boolean isSupported(int i)
{
switch (i)
{
case 0: // '\0'
case 3: // '\003'
case 4: // '\004'
case 5: // '\005'
case 6: // '\006'
case 8: // '\b'
case 14: // '\016'
case 15: // '\017'
case 16: // '\020'
case 17: // '\021'
case 18: // '\022'
case 26: // '\032'
case 31: // '\037'
case 32: // ' '
case 34: // '"'
return true;
case 1: // '\001'
case 2: // '\002'
case 7: // '\007'
case 9: // '\t'
case 10: // '\n'
case 11: // '\013'
case 12: // '\f'
case 13: // '\r'
case 19: // '\023'
case 20: // '\024'
case 21: // '\025'
case 22: // '\026'
case 23: // '\027'
case 24: // '\030'
case 25: // '\031'
case 27: // '\033'
case 28: // '\034'
case 29: // '\035'
case 30: // '\036'
case 33: // '!'
case 35: // '#'
case 36: // '$'
case 37: // '%'
case 38: // '&'
case 39: // '\''
case 40: // '('
case 41: // ')'
case 42: // '*'
case 43: // '+'
case 44: // ','
case 45: // '-'
case 46: // '.'
case 47: // '/'
case 48: // '0'
case 49: // '1'
case 50: // '2'
case 51: // '3'
case 52: // '4'
case 53: // '5'
case 54: // '6'
case 55: // '7'
case 56: // '8'
case 57: // '9'
case 58: // ':'
case 59: // ';'
case 60: // '<'
case 61: // '='
case 62: // '>'
case 63: // '?'
case 64: // '@'
case 65: // 'A'
case 66: // 'B'
case 67: // 'C'
case 68: // 'D'
case 69: // 'E'
case 70: // 'F'
case 71: // 'G'
case 72: // 'H'
case 73: // 'I'
case 74: // 'J'
case 75: // 'K'
case 76: // 'L'
case 77: // 'M'
case 78: // 'N'
case 79: // 'O'
case 80: // 'P'
case 81: // 'Q'
case 82: // 'R'
case 83: // 'S'
case 84: // 'T'
case 85: // 'U'
case 86: // 'V'
case 87: // 'W'
case 88: // 'X'
case 89: // 'Y'
case 90: // 'Z'
case 91: // '['
case 92: // '\\'
case 93: // ']'
case 94: // '^'
case 95: // '_'
case 96: // '`'
case 97: // 'a'
case 98: // 'b'
case 99: // 'c'
case 100: // 'd'
case 101: // 'e'
case 102: // 'f'
case 103: // 'g'
case 104: // 'h'
case 105: // 'i'
case 106: // 'j'
case 107: // 'k'
case 108: // 'l'
case 109: // 'm'
case 110: // 'n'
default:
return false;
}
}
private SSRCCache cache;
public static final int PAYLOAD_NOTFOUND = -1;
Format formatList[];
static AudioFormat mpegAudio = new AudioFormat("mpegaudio/rtp");
public FormatInfo()
{
cache = null;
formatList = new Format[111];
initFormats();
}
public void add(int i, Format format)
{
if (i >= formatList.length)
expandTable(i);
Format existingFormat = formatList[i];
if (existingFormat != null)
{
/*
* XXX If the specified format is matches-equivalent to the
* existingFormat, it shouldn't disturb the rest of the code/logic.
* However, the specified format may contain additional and/or more
* recent information (e.g. format parameters which are not
* differentiating) which may be vital to the application.
*/
if ((format == null)
|| !existingFormat.matches(format)
|| !format.matches(existingFormat))
return;
}
formatList[i] = format;
if (cache != null && (format instanceof VideoFormat))
cache.clockrate[i] = 0x15f90;
if (cache != null && (format instanceof AudioFormat))
{
if (mpegAudio.matches(format))
{
cache.clockrate[i] = 0x15f90;
}
else
{
cache.clockrate[i]
= (int) ((AudioFormat) format).getSampleRate();
}
}
}
private void expandTable(int i)
{
Format aformat[] = new Format[i + 1];
for (int j = 0; j < formatList.length; j++)
aformat[j] = formatList[j];
formatList = aformat;
}
public Format get(int i)
{
return i >= formatList.length ? null : formatList[i];
}
public int getPayload(Format format)
{
if (format.getEncoding() != null
&& format.getEncoding().equals("g729a/rtp"))
format = new AudioFormat("g729/rtp");
for (int i = 0; i < formatList.length; i++)
if (format.matches(formatList[i]))
return i;
return -1;
}
public void initFormats()
{
formatList[0] = new AudioFormat("ULAW/rtp", 8000D, 8, 1);
formatList[3] = new AudioFormat("gsm/rtp", 8000D, -1, 1);
formatList[4] = new AudioFormat("g723/rtp", 8000D, -1, 1);
formatList[5] = new AudioFormat("dvi/rtp", 8000D, 4, 1);
formatList[8] = new AudioFormat("ALAW/rtp", 8000D, 8, 1);
formatList[14] = new AudioFormat("mpegaudio/rtp", -1D, -1, -1);
formatList[15] = new AudioFormat("g728/rtp", 8000D, -1, 1);
formatList[16] = new AudioFormat("dvi/rtp", 11025D, 4, 1);
formatList[17] = new AudioFormat("dvi/rtp", 22050D, 4, 1);
formatList[18] = new AudioFormat("g729/rtp", 8000D, -1, 1);
formatList[26] = new VideoFormat("jpeg/rtp");
formatList[31] = new VideoFormat("h261/rtp");
formatList[32] = new VideoFormat("mpeg/rtp");
formatList[34] = new VideoFormat("h263/rtp");
// Seb: remove H263-1998
// formatList[42] = new VideoFormat("h263-1998/rtp");
// formatList[96] = new VideoFormat("h264/rtp");
// formatList[97] = new AudioFormat("ilbc/rtp", 8000D, -1, 1);
// formatList[98] = new AudioFormat("ilbc/rtp", 8000D, -1, 1);
// formatList[99] = new VideoFormat("h264/rtp");
// formatList[110] = new AudioFormat("speex/rtp", 8000D, 8, 1);
}
public void setCache(SSRCCache ssrccache)
{
cache = ssrccache;
}
}