(function(window, videojs) {
'use strict';
/*
  ======== A Handy Little QUnit Reference ========
  http://api.qunitjs.com/

  Test methods:
  module(name, {[setup][ ,teardown]})
  test(name, callback)
  expect(numberOfAssertions)
  stop(increment)
  start(decrement)
  Test assertions:
  ok(value, [message])
  equal(actual, expected, [message])
  notEqual(actual, expected, [message])
  deepEqual(actual, expected, [message])
  notDeepEqual(actual, expected, [message])
  strictEqual(actual, expected, [message])
  notStrictEqual(actual, expected, [message])
  throws(block, [expected], [message])
*/
var
  PacketStream = videojs.mp2t.PacketStream,
  packetStream,
  ParseStream = videojs.mp2t.ParseStream,
  parseStream,
  Transmuxer = videojs.mp2t.Transmuxer,
  transmuxer;

module('MP2T Packet Stream', {
  setup: function() {
    packetStream = new PacketStream();
  }
});

test('empty input does not error', function() {
  packetStream.push(new Uint8Array([]));
  ok(true, 'did not throw');
});
test('parses a generic packet', function() {
  var datas = [];
  packetStream.on('data', function(event) {
    datas.push(event);
  });
  packetStream.push(new Uint8Array(188));

  equal(1, datas.length, 'fired one event');
  equal(datas[0].byteLength, 188, 'delivered the packet');
});

test('buffers partial packets', function() {
  var datas = [];
  packetStream.on('data', function(event) {
    datas.push(event);
  });
  packetStream.push(new Uint8Array(187));

  equal(0, datas.length, 'did not fire an event');

  packetStream.push(new Uint8Array(189));
  equal(2, datas.length, 'fired events');
  equal(188, datas[0].byteLength, 'parsed the first packet');
  equal(188, datas[1].byteLength, 'parsed the second packet');
});

test('parses multiple packets delivered at once', function() {
  var datas = [];
  packetStream.on('data', function(event) {
    datas.push(event);
  });

  packetStream.push(new Uint8Array(188 * 3));
  equal(3, datas.length, 'fired three events');
  equal(188, datas[0].byteLength, 'parsed the first packet');
  equal(188, datas[1].byteLength, 'parsed the second packet');
  equal(188, datas[2].byteLength, 'parsed the third packet');
});

test('buffers extra after multiple packets', function() {
  var datas = [];
  packetStream.on('data', function(event) {
    datas.push(event);
  });

  packetStream.push(new Uint8Array(188 * 2 + 10));
  equal(2, datas.length, 'fired two events');
  equal(188, datas[0].byteLength, 'parsed the first packet');
  equal(188, datas[1].byteLength, 'parsed the second packet');

  packetStream.push(new Uint8Array(178));
  equal(3, datas.length, 'fired a final event');
  equal(188, datas[2].length, 'parsed the finel packet');
});

module('MP2T Parse Stream', {
  setup: function() {
    parseStream = new ParseStream();
  }
});

test('emits an error on an invalid packet', function() {
  var errors = [];
  parseStream.on('error', function(error) {
    errors.push(error);
  });
  parseStream.push(new Uint8Array(188));

  equal(1, errors.length, 'emitted an error');
});

test('parses generic packet properties', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0000 0001 tsc:01 afc:10 cc:11 padding: 00
    0x40, 0x01, 0x6c
  ]));
  ok(packet.payloadUnitStartIndicator, 'parsed payload_unit_start_indicator');
  ok(packet.pid, 'parsed PID');
});

test('parses a data packet with adaptation fields', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0000 0000 tsc:01 afc:10 cc:11 afl:00 0000 00 stuffing:00 0000 00 pscp:00 0001 padding:0000
    0x40, 0x00, 0x6c, 0x00, 0x00, 0x10
  ]));
  strictEqual(packet.type, 'pat', 'parsed the packet type');
});

test('parses a PES packet', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  // setup a program map table
  parseStream.programMapTable = {
    0x0010: videojs.mp2t.H264_STREAM_TYPE
  };

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0000 0010 tsc:01 afc:01 cc:11 padding:00
    0x40, 0x02, 0x5c
  ]));
  strictEqual(packet.type, 'pes', 'parsed a PES packet');
});

test('parses packets with variable length adaptation fields and a payload', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  // setup a program map table
  parseStream.programMapTable = {
    0x0010: videojs.mp2t.H264_STREAM_TYPE
  };

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0000 0010 tsc:01 afc:11 cc:11 afl:00 0000 11 stuffing:00 0000 0000 00 pscp:00 0001
    0x40, 0x02, 0x7c, 0x0c, 0x00, 0x01
  ]));
  strictEqual(packet.type, 'pes', 'parsed a PES packet');
});

/*
 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 |
*/

test('parses the program map table pid from the program association table (PAT)', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  parseStream.push(new Uint8Array([
    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
  ]));
  ok(packet, 'parsed a packet');
  strictEqual(0x0010, parseStream.pmtPid, 'parsed PMT pid');
});

test('parse the elementary streams from a program map table', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });
  parseStream.pmtPid = 0x0010;

  parseStream.push(new Uint8Array([
    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 0000 ssi:0 0:0 r:00 sl:0000 0010 1111
    0x00, 0x00, 0x2f,
    // 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,
    // crc
    0x00, 0x00, 0x00, 0x00
  ]));

  ok(packet, 'parsed a packet');
  ok(parseStream.programMapTable, 'parsed a program map');
  strictEqual(0x1b, parseStream.programMapTable[0x11], 'associated h264 with pid 0x11');
  strictEqual(0x0f, parseStream.programMapTable[0x12], 'associated adts with pid 0x12');
  deepEqual(parseStream.programMapTable, packet.programMapTable, 'recorded the PMT');
});

test('parses an elementary stream packet with just a pts', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  parseStream.programMapTable = {
    0x11: 0x1b // pid 0x11 is h264 data
  };

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0001 0001
    0x40, 0x11,
    // tsc:01 afc:01 cc:0000
    0x50,
    // pscp:0000 0000 0000 0000 0000 0001
    0x00, 0x00, 0x01,
    // sid:0000 0000 ppl:0000 0000 0000 1001
    0x00, 0x00, 0x09,
    // 10 psc:00 pp:0 dai:1 c:0 ooc:0
    0x84,
    // pdf:10 ef:1 erf:0 dtmf:0 acif:0 pcf:0 pef:0
    0xc0,
    // phdl:0000 0101 '0010' pts:000 mb:1 pts:0000 0000
    0x05, 0x21, 0x00,
    // pts:0000 000 mb:1 pts:0000 0000 pts:0000 000 mb:1
    0x01, 0x00, 0x01,
    // "data":0101
    0x11
  ]));

  ok(packet, 'parsed a packet');
  equal('pes', packet.type, 'recognized a PES packet');
  equal(0x1b, packet.streamType, 'tracked the stream_type');
  equal(1, packet.data.byteLength, 'parsed a single data byte');
  equal(0x11, packet.data[0], 'parsed the data');
  equal(0, packet.pts, 'parsed the pts');
});

test('parses an elementary stream packet with a pts and dts', function() {
  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  parseStream.programMapTable = {
    0x11: 0x1b // pid 0x11 is h264 data
  };

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0001 0001
    0x40, 0x11,
    // tsc:01 afc:01 cc:0000
    0x50,
    // pscp:0000 0000 0000 0000 0000 0001
    0x00, 0x00, 0x01,
    // sid:0000 0000 ppl:0000 0000 0000 1110
    0x00, 0x00, 0x0e,
    // 10 psc:00 pp:0 dai:1 c:0 ooc:0
    0x84,
    // pdf:11 ef:1 erf:0 dtmf:0 acif:0 pcf:0 pef:0
    0xe0,
    // phdl:0000 1010 '0011' pts:000 mb:1 pts:0000 0000
    0x0a, 0x21, 0x00,
    // pts:0000 000 mb:1 pts:0000 0000 pts:0000 100 mb:1
    0x01, 0x00, 0x09,
    // '0001' dts:000 mb:1 dts:0000 0000 dts:0000 000 mb:1
    0x11, 0x00, 0x01,
    // dts:0000 0000 dts:0000 010 mb:1
    0x00, 0x05,
    // "data":0101
    0x11
  ]));

  ok(packet, 'parsed a packet');
  equal('pes', packet.type, 'recognized a PES packet');
  equal(0x1b, packet.streamType, 'tracked the stream_type');
  equal(1, packet.data.byteLength, 'parsed a single data byte');
  equal(0x11, packet.data[0], 'parsed the data');
  equal(4 / 90, packet.pts, 'parsed the pts');
  equal(2 / 90, packet.dts, 'parsed the dts');
});

test('parses an elementary stream packet without a pts or dts', function() {

  var packet;
  parseStream.on('data', function(data) {
    packet = data;
  });

  parseStream.programMapTable = {
    0x11: 0x1b // pid 0x11 is h264 data
  };

  parseStream.push(new Uint8Array([
    0x47, // sync byte
    // tei:0 pusi:1 tp:0 pid:0 0000 0001 0001
    0x40, 0x11,
    // tsc:01 afc:01 cc:0000
    0x50,
    // pscp:0000 0000 0000 0000 0000 0001
    0x00, 0x00, 0x01,
    // sid:0000 0000 ppl:0000 0000 0000 0101
    0x00, 0x00, 0x05,
    // 10 psc:00 pp:0 dai:1 c:0 ooc:0
    0x84,
    // pdf:00 ef:1 erf:0 dtmf:0 acif:0 pcf:0 pef:0
    0x20,
    // phdl:0000 0000
    0x00,
    // "data":1010 1111 0000 0001
    0xaf, 0x01
  ]));

  ok(packet, 'parsed a packet');
  equal('pes', packet.type, 'recognized a PES packet');
  equal(0x1b, packet.streamType, 'tracked the stream_type');
  equal(2, packet.data.byteLength, 'parsed two data bytes');
  equal(0xaf, packet.data[0], 'parsed the first data byte');
  equal(0x01, packet.data[1], 'parsed the second data byte');
  ok(!packet.pts, 'did not parse a pts');
  ok(!packet.dts, 'did not parse a dts');
});

module('MP4 Transmuxer', {
  setup: function() {
    transmuxer = new Transmuxer();
  }
});

test('can mux an empty mp2t', function() {
  transmuxer.push(new Uint8Array());

  ok(transmuxer.mp4, 'produced a non-null result');
  strictEqual(transmuxer.mp4.byteLength, 0, 'produced an empty mp4');
});

})(window, window.videojs);