h264-stream_test.js
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(function(videojs) {
module('H264 Stream');
var
nalUnitTypes = window.videojs.Hls.NALUnitType,
FlvTag = window.videojs.Hls.FlvTag;
test('metadata is generated for IDRs after a full NAL unit is written', function() {
var
h264Stream = new videojs.Hls.H264Stream(),
accessUnitDelimiter = new Uint8Array([
0x00,
0x00,
0x01,
nalUnitTypes.access_unit_delimiter_rbsp
]),
seqParamSet = new Uint8Array([
0x00,
0x00,
0x01,
0x60 | nalUnitTypes.seq_parameter_set_rbsp,
0x00, // profile_idc
0x00, // constraint_set flags
0x00, // level_idc
// seq_parameter_set_id ue(v) 0 => 1
// log2_max_frame_num_minus4 ue(v) 1 => 010
// pic_order_cnt_type ue(v) 0 => 1
// log2_max_pic_order_cnt_lsb_minus4 ue(v) 1 => 010
// max_num_ref_frames ue(v) 1 => 010
// gaps_in_frame_num_value_allowed u(1) 0
// pic_width_in_mbs_minus1 ue(v) 0 => 1
// pic_height_in_map_units_minus1 ue(v) 0 => 1
// frame_mbs_only_flag u(1) 1
// direct_8x8_inference_flag u(1) 0
// frame_cropping_flag u(1) 0
// vui_parameters_present_flag u(1) 0
// 1010 1010 0100 1110 00(00 0000)
0xAA,
0x4E,
0x00
]),
idr = new Uint8Array([
0x00,
0x00,
0x01,
nalUnitTypes.slice_layer_without_partitioning_rbsp_idr
]);
h264Stream.setNextTimeStamp(0, 0, true);
h264Stream.writeBytes(accessUnitDelimiter, 0, accessUnitDelimiter.byteLength);
h264Stream.writeBytes(seqParamSet, 0, seqParamSet.byteLength);
h264Stream.writeBytes(idr, 0, idr.byteLength);
h264Stream.setNextTimeStamp(1, 1, true);
strictEqual(h264Stream.tags.length, 3, 'three tags are written');
ok(FlvTag.isMetaData(h264Stream.tags[0].bytes),
'metadata is written');
ok(FlvTag.isVideoFrame(h264Stream.tags[1].bytes),
'picture parameter set is written');
ok(h264Stream.tags[2].keyFrame, 'key frame is written');
});
test('starting PTS values can be negative', function() {
var
h264Stream = new videojs.Hls.H264Stream(),
accessUnitDelimiter = new Uint8Array([
0x00,
0x00,
0x01,
nalUnitTypes.access_unit_delimiter_rbsp
]);
h264Stream.setTimeStampOffset(-100);
h264Stream.setNextTimeStamp(-100, -100, true);
h264Stream.writeBytes(accessUnitDelimiter, 0, accessUnitDelimiter.byteLength);
h264Stream.setNextTimeStamp(-99, -99, true);
h264Stream.writeBytes(accessUnitDelimiter, 0, accessUnitDelimiter.byteLength);
h264Stream.setNextTimeStamp(0, 0, true);
h264Stream.writeBytes(accessUnitDelimiter, 0, accessUnitDelimiter.byteLength);
// flush out the last tag
h264Stream.writeBytes(accessUnitDelimiter, 0, accessUnitDelimiter.byteLength);
strictEqual(h264Stream.tags.length, 3, 'three tags are ready');
strictEqual(h264Stream.tags[0].pts, 0, 'the first PTS is zero');
strictEqual(h264Stream.tags[0].dts, 0, 'the first DTS is zero');
strictEqual(h264Stream.tags[1].pts, 1, 'the second PTS is one');
strictEqual(h264Stream.tags[1].dts, 1, 'the second DTS is one');
strictEqual(h264Stream.tags[2].pts, 100, 'the third PTS is 100');
strictEqual(h264Stream.tags[2].dts, 100, 'the third DTS is 100');
});
})(window.videojs);