First release
This commit is contained in:
Owen Quinlan
commit
fa6c85266e
2339 changed files with 761050 additions and 0 deletions
327
node_modules/mux.js/test/utils.js
generated
vendored
Normal file
327
node_modules/mux.js/test/utils.js
generated
vendored
Normal file
|
|
@ -0,0 +1,327 @@
|
|||
var
|
||||
mp2t = require('../lib/m2ts'),
|
||||
id3Generator = require('./utils/id3-generator'),
|
||||
MP2T_PACKET_LENGTH = mp2t.MP2T_PACKET_LENGTH,
|
||||
PMT,
|
||||
PAT,
|
||||
generatePMT,
|
||||
pesHeader,
|
||||
packetize,
|
||||
transportPacket,
|
||||
videoPes,
|
||||
adtsFrame,
|
||||
audioPes,
|
||||
timedMetadataPes,
|
||||
binaryStringToArrayOfBytes,
|
||||
leftPad;
|
||||
|
||||
|
||||
PMT = [
|
||||
0x47, // sync byte
|
||||
// tei:0 pusi:1 tp:0 pid:0 0000 0010 0000
|
||||
0x40, 0x10,
|
||||
// tsc:01 afc:01 cc:0000 pointer_field:0000 0000
|
||||
0x50, 0x00,
|
||||
// tid:0000 0010 ssi:0 0:0 r:00 sl:0000 0001 1100
|
||||
0x02, 0x00, 0x1c,
|
||||
// pn:0000 0000 0000 0001
|
||||
0x00, 0x01,
|
||||
// r:00 vn:00 000 cni:1 sn:0000 0000 lsn:0000 0000
|
||||
0x01, 0x00, 0x00,
|
||||
// r:000 ppid:0 0011 1111 1111
|
||||
0x03, 0xff,
|
||||
// r:0000 pil:0000 0000 0000
|
||||
0x00, 0x00,
|
||||
// h264
|
||||
// st:0001 1010 r:000 epid:0 0000 0001 0001
|
||||
0x1b, 0x00, 0x11,
|
||||
// r:0000 esil:0000 0000 0000
|
||||
0x00, 0x00,
|
||||
// adts
|
||||
// st:0000 1111 r:000 epid:0 0000 0001 0010
|
||||
0x0f, 0x00, 0x12,
|
||||
// r:0000 esil:0000 0000 0000
|
||||
0x00, 0x00,
|
||||
|
||||
// timed metadata
|
||||
// st:0001 0111 r:000 epid:0 0000 0001 0011
|
||||
0x15, 0x00, 0x13,
|
||||
// r:0000 esil:0000 0000 0000
|
||||
0x00, 0x00,
|
||||
|
||||
// crc
|
||||
0x00, 0x00, 0x00, 0x00
|
||||
];
|
||||
|
||||
/*
|
||||
Packet Header:
|
||||
| sb | tei pusi tp pid:5 | pid | tsc afc cc |
|
||||
with af:
|
||||
| afl | ... | <data> |
|
||||
without af:
|
||||
| <data> |
|
||||
|
||||
PAT:
|
||||
| pf? | ... |
|
||||
| tid | ssi '0' r sl:4 | sl | tsi:8 |
|
||||
| tsi | r vn cni | sn | lsn |
|
||||
|
||||
with program_number == '0':
|
||||
| pn | pn | r np:5 | np |
|
||||
otherwise:
|
||||
| pn | pn | r pmp:5 | pmp |
|
||||
*/
|
||||
|
||||
PAT = [
|
||||
0x47, // sync byte
|
||||
// tei:0 pusi:1 tp:0 pid:0 0000 0000 0000
|
||||
0x40, 0x00,
|
||||
// tsc:01 afc:01 cc:0000 pointer_field:0000 0000
|
||||
0x50, 0x00,
|
||||
// tid:0000 0000 ssi:0 0:0 r:00 sl:0000 0000 0000
|
||||
0x00, 0x00, 0x00,
|
||||
// tsi:0000 0000 0000 0000
|
||||
0x00, 0x00,
|
||||
// r:00 vn:00 000 cni:1 sn:0000 0000 lsn:0000 0000
|
||||
0x01, 0x00, 0x00,
|
||||
// pn:0000 0000 0000 0001
|
||||
0x00, 0x01,
|
||||
// r:000 pmp:0 0000 0010 0000
|
||||
0x00, 0x10,
|
||||
// crc32:0000 0000 0000 0000 0000 0000 0000 0000
|
||||
0x00, 0x00, 0x00, 0x00
|
||||
];
|
||||
|
||||
generatePMT = function(options) {
|
||||
var PMT = [
|
||||
0x47, // sync byte
|
||||
// tei:0 pusi:1 tp:0 pid:0 0000 0010 0000
|
||||
0x40, 0x10,
|
||||
// tsc:01 afc:01 cc:0000 pointer_field:0000 0000
|
||||
0x50, 0x00,
|
||||
// tid:0000 0010 ssi:0 0:0 r:00 sl:0000 0001 1100
|
||||
0x02, 0x00, 0x1c,
|
||||
// pn:0000 0000 0000 0001
|
||||
0x00, 0x01,
|
||||
// r:00 vn:00 000 cni:1 sn:0000 0000 lsn:0000 0000
|
||||
0x01, 0x00, 0x00,
|
||||
// r:000 ppid:0 0011 1111 1111
|
||||
0x03, 0xff,
|
||||
// r:0000 pil:0000 0000 0000
|
||||
0x00, 0x00];
|
||||
|
||||
if (options.hasVideo) {
|
||||
// h264
|
||||
PMT = PMT.concat([
|
||||
// st:0001 1010 r:000 epid:0 0000 0001 0001
|
||||
0x1b, 0x00, 0x11,
|
||||
// r:0000 esil:0000 0000 0000
|
||||
0x00, 0x00
|
||||
]);
|
||||
}
|
||||
|
||||
if (options.hasAudio) {
|
||||
// adts
|
||||
PMT = PMT.concat([
|
||||
// st:0000 1111 r:000 epid:0 0000 0001 0010
|
||||
0x0f, 0x00, 0x12,
|
||||
// r:0000 esil:0000 0000 0000
|
||||
0x00, 0x00
|
||||
]);
|
||||
}
|
||||
|
||||
if (options.hasMetadata) {
|
||||
// timed metadata
|
||||
PMT = PMT.concat([
|
||||
// st:0001 0111 r:000 epid:0 0000 0001 0011
|
||||
0x15, 0x00, 0x13,
|
||||
// r:0000 esil:0000 0000 0000
|
||||
0x00, 0x00
|
||||
]);
|
||||
}
|
||||
|
||||
// crc
|
||||
return PMT.concat([0x00, 0x00, 0x00, 0x00]);
|
||||
};
|
||||
|
||||
pesHeader = function(first, pts, dataLength) {
|
||||
if (!dataLength) {
|
||||
dataLength = 0;
|
||||
} else {
|
||||
// Add the pes header length (only the portion after the
|
||||
// pes_packet_length field)
|
||||
dataLength += 3;
|
||||
}
|
||||
|
||||
// PES_packet(), Rec. ITU-T H.222.0, Table 2-21
|
||||
var result = [
|
||||
// pscp:0000 0000 0000 0000 0000 0001
|
||||
0x00, 0x00, 0x01,
|
||||
// sid:0000 0000 ppl:0000 0000 0000 0000
|
||||
0x00, 0x00, 0x00,
|
||||
// 10 psc:00 pp:0 dai:1 c:0 ooc:0
|
||||
0x84,
|
||||
// pdf:?0 ef:1 erf:0 dtmf:0 acif:0 pcf:0 pef:0
|
||||
0x20 | (pts ? 0x80 : 0x00),
|
||||
// phdl:0000 0000
|
||||
(first ? 0x01 : 0x00) + (pts ? 0x05 : 0x00)
|
||||
];
|
||||
|
||||
// Only store 15 bits of the PTS for QUnit.testing purposes
|
||||
if (pts) {
|
||||
var
|
||||
pts32 = Math.floor(pts / 2), // right shift by 1
|
||||
leftMostBit = ((pts32 & 0x80000000) >>> 31) & 0x01,
|
||||
firstThree;
|
||||
|
||||
pts = pts & 0xffffffff; // remove left most bit
|
||||
firstThree = (leftMostBit << 3) | (((pts & 0xc0000000) >>> 29) & 0x06) | 0x01;
|
||||
result.push((0x2 << 4) | firstThree);
|
||||
result.push((pts >>> 22) & 0xff);
|
||||
result.push(((pts >>> 14) | 0x01) & 0xff);
|
||||
result.push((pts >>> 7) & 0xff);
|
||||
result.push(((pts << 1) | 0x01) & 0xff);
|
||||
|
||||
// Add the bytes spent on the pts info
|
||||
dataLength += 5;
|
||||
}
|
||||
if (first) {
|
||||
result.push(0x00);
|
||||
dataLength += 1;
|
||||
}
|
||||
|
||||
// Finally set the pes_packet_length field
|
||||
result[4] = (dataLength & 0x0000FF00) >> 8;
|
||||
result[5] = dataLength & 0x000000FF;
|
||||
|
||||
return result;
|
||||
};
|
||||
|
||||
packetize = function(data) {
|
||||
var packet = new Uint8Array(MP2T_PACKET_LENGTH);
|
||||
packet.set(data);
|
||||
return packet;
|
||||
};
|
||||
|
||||
/**
|
||||
* Helper function to create transport stream PES packets
|
||||
* @param pid {uint8} - the program identifier (PID)
|
||||
* @param data {arraylike} - the payload bytes
|
||||
* @payload first {boolean} - true if this PES should be a payload
|
||||
* unit start
|
||||
*/
|
||||
transportPacket = function(pid, data, first, pts, isVideoData) {
|
||||
var
|
||||
adaptationFieldLength = 188 - data.length - 14 - (first ? 1 : 0) - (pts ? 5 : 0),
|
||||
// transport_packet(), Rec. ITU-T H.222.0, Table 2-2
|
||||
result = [
|
||||
// sync byte
|
||||
0x47,
|
||||
// tei:0 pusi:1 tp:0 pid:0 0000 0001 0001
|
||||
0x40, pid,
|
||||
// tsc:01 afc:11 cc:0000
|
||||
0x70
|
||||
].concat([
|
||||
// afl
|
||||
adaptationFieldLength & 0xff,
|
||||
// di:0 rai:0 espi:0 pf:0 of:0 spf:0 tpdf:0 afef:0
|
||||
0x00
|
||||
]),
|
||||
i;
|
||||
|
||||
i = adaptationFieldLength - 1;
|
||||
while (i--) {
|
||||
// stuffing_bytes
|
||||
result.push(0xff);
|
||||
}
|
||||
|
||||
// PES_packet(), Rec. ITU-T H.222.0, Table 2-21
|
||||
result = result.concat(pesHeader(first, pts, isVideoData ? 0 : data.length));
|
||||
|
||||
return result.concat(data);
|
||||
};
|
||||
|
||||
/**
|
||||
* Helper function to create video PES packets
|
||||
* @param data {arraylike} - the payload bytes
|
||||
* @payload first {boolean} - true if this PES should be a payload
|
||||
* unit start
|
||||
*/
|
||||
videoPes = function(data, first, pts) {
|
||||
return transportPacket(0x11, [
|
||||
// NAL unit start code
|
||||
0x00, 0x00, 0x01
|
||||
].concat(data), first, pts, true);
|
||||
};
|
||||
|
||||
/**
|
||||
* Helper function to create audio ADTS frame header
|
||||
* @param dataLength {number} - the payload byte count
|
||||
*/
|
||||
adtsFrame = function(dataLength) {
|
||||
var frameLength = dataLength + 7;
|
||||
return [
|
||||
0xff, 0xf1, // no CRC
|
||||
0x10, // AAC Main, 44.1KHz
|
||||
0xb0 | ((frameLength & 0x1800) >> 11), // 2 channels
|
||||
(frameLength & 0x7f8) >> 3,
|
||||
((frameLength & 0x07) << 5) + 7, // frame length in bytes
|
||||
0x00 // one AAC per ADTS frame
|
||||
];
|
||||
};
|
||||
|
||||
/**
|
||||
* Helper function to create audio PES packets
|
||||
* @param data {arraylike} - the payload bytes
|
||||
* @payload first {boolean} - true if this PES should be a payload
|
||||
* unit start
|
||||
*/
|
||||
audioPes = function(data, first, pts) {
|
||||
return transportPacket(0x12,
|
||||
adtsFrame(data.length).concat(data),
|
||||
first, pts);
|
||||
};
|
||||
|
||||
timedMetadataPes = function(data) {
|
||||
var id3 = id3Generator;
|
||||
return transportPacket(0x13, id3.id3Tag(id3.id3Frame('PRIV', 0x00, 0x01)));
|
||||
};
|
||||
|
||||
binaryStringToArrayOfBytes = function(string) {
|
||||
var
|
||||
array = [],
|
||||
arrayIndex = 0,
|
||||
stringIndex = 0;
|
||||
|
||||
while (stringIndex < string.length) {
|
||||
array[arrayIndex] = parseInt(string.slice(stringIndex, stringIndex + 8), 2);
|
||||
|
||||
arrayIndex++;
|
||||
// next byte
|
||||
stringIndex += 8;
|
||||
}
|
||||
|
||||
return array;
|
||||
};
|
||||
|
||||
leftPad = function(string, targetLength) {
|
||||
if (string.length >= targetLength) {
|
||||
return string;
|
||||
}
|
||||
return new Array(targetLength - string.length + 1).join('0') + string;
|
||||
};
|
||||
|
||||
module.exports = {
|
||||
PMT: PMT,
|
||||
PAT: PAT,
|
||||
generatePMT: generatePMT,
|
||||
pesHeader: pesHeader,
|
||||
packetize: packetize,
|
||||
transportPacket: transportPacket,
|
||||
videoPes: videoPes,
|
||||
adtsFrame: adtsFrame,
|
||||
audioPes: audioPes,
|
||||
timedMetadataPes: timedMetadataPes,
|
||||
binaryStringToArrayOfBytes: binaryStringToArrayOfBytes,
|
||||
leftPad: leftPad
|
||||
};
|
||||
Loading…
Add table
Add a link
Reference in a new issue