mirror of https://bitbucket.org/ausocean/av.git
366 lines
12 KiB
Go
366 lines
12 KiB
Go
/*
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NAME
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lex_test.go
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DESCRIPTION
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lex_test.go provides tests for the lexer in lex.go.
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AUTHOR
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Dan Kortschak <dan@ausocean.org>
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Saxon A. Nelson-Milton <saxon@ausocean.org>
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LICENSE
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lex_test.go is Copyright (C) 2017 the Australian Ocean Lab (AusOcean)
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
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*/
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// lex_test.go provides tests for the lexer in lex.go.
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package h264
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import (
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"io"
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"testing"
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"time"
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)
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var h264Tests = []struct {
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name string
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input []byte
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delay time.Duration
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want [][]byte
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err error
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}{
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{
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name: "empty",
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},
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{
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name: "null short",
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input: []byte{0x00, 0x00, 0x01, 0x0},
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delay: 0,
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want: [][]byte{{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x0}},
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},
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{
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name: "null short delayed",
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input: []byte{0x00, 0x00, 0x01, 0x0},
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delay: time.Millisecond,
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want: [][]byte{{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x0}},
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},
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{
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name: "full short type 1",
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input: []byte{
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0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: 0,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full short type 5",
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input: []byte{
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0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: 0,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full short type 8",
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input: []byte{
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0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: 0,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full short delayed",
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input: []byte{
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0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: time.Millisecond,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full long type 1",
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input: []byte{
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: 0,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full long type 5",
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input: []byte{
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: 0,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full long type 8",
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input: []byte{
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: 0,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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{
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name: "full long delayed",
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input: []byte{
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd',
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},
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delay: time.Millisecond,
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want: [][]byte{
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l',
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0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e',
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0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'},
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{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h',
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0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'},
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},
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},
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}
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// FIXME: this needs to be adapted
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/*
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func TestH264(t *testing.T) {
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for _, test := range h264Tests {
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var buf chunkEncoder
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err := Lex(&buf, bytes.NewReader(test.input), test.delay)
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if fmt.Sprint(err) != fmt.Sprint(test.err) {
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t.Errorf("unexpected error for %q: got:%v want:%v", test.name, err, test.err)
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}
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if err != nil {
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continue
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}
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got := [][]byte(buf)
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if !reflect.DeepEqual(got, test.want) {
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t.Errorf("unexpected result for %q:\ngot :%#v\nwant:%#v", test.name, got, test.want)
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}
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}
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}
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*/
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// rtpReader provides an io.Reader for reading the test RTP stream.
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type rtpReader struct {
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packets [][]byte
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idx int
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}
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// Read implements io.Reader.
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func (r *rtpReader) Read(p []byte) (int, error) {
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if r.idx == len(r.packets) {
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return 0, io.EOF
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}
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b := r.packets[r.idx]
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n := copy(p, b)
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if n < len(r.packets[r.idx]) {
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r.packets[r.idx] = r.packets[r.idx][n:]
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} else {
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r.idx++
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}
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return n, nil
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}
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// destination holds the access units extracted during the lexing process.
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type destination [][]byte
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// Write implements io.Writer.
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func (d *destination) Write(p []byte) (int, error) {
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t := make([]byte, len(p))
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copy(t, p)
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*d = append([][]byte(*d), t)
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return len(p), nil
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}
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// TestLex checks that the Lexer can correctly extract H264 access units from
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// h264 RTP stream in RTP payload format.
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func TestRTPLex(t *testing.T) {
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const rtpVer = 2
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tests := []struct {
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packets [][]byte
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expect [][]byte
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}{
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{
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packets: [][]byte{
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{ // Single NAL unit.
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeSingleNALULowBound, // NAL header.
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0x01, 0x02, 0x03, 0x04, // NAL Data.
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},
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{ // Fragmentation (start packet).
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeFUA, // FU indicator.
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0x80 | typeSingleNALULowBound, // FU header.
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0x01, 0x02, 0x03, // FU payload.
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},
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{ // Fragmentation (middle packet)
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeFUA, // NAL indicator.
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typeSingleNALULowBound, // FU header.
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0x04, 0x05, 0x06, // FU payload.
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},
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{ // Fragmentation (end packet)
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeFUA, // NAL indicator.
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0x40 | typeSingleNALULowBound, // FU header.
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0x07, 0x08, 0x09, // FU payload
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},
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{ // Aggregation. Make last packet of access unit => marker bit true.
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0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeSTAPA, // NAL header.
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0x00, 0x04, // NAL 1 size.
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0x01, 0x02, 0x03, 0x04, // NAL 1 data.
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0x00, 0x04, // NAL 2 size.
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0x01, 0x02, 0x03, 0x04, // NAL 2 data.
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},
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// Second access unit.
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{ // Single NAL unit.
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeSingleNALULowBound, // NAL header.
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0x01, 0x02, 0x03, 0x04, // NAL Data.
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},
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{ // Single NAL. Make last packet of access unit => marker bit true.
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0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // RTP header.
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typeSingleNALULowBound, // NAL header.
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0x01, 0x02, 0x03, 0x04, // NAL data.
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},
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},
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expect: [][]byte{
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// First access unit.
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{
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// NAL 1
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0x00, 0x00, 0x00, 0x01, // Start code.
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typeSingleNALULowBound, // NAL header.
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0x01, 0x02, 0x03, 0x04, // NAL data.
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// NAL 2
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0x00, 0x00, 0x00, 0x01, // Start code.
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typeSingleNALULowBound,
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0x01, 0x02, 0x03, // FU payload.
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0x04, 0x05, 0x06, // FU payload.
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0x07, 0x08, 0x09, // FU payload.
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// NAL 3
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0x00, 0x00, 0x00, 0x01, // Start code.
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0x01, 0x02, 0x03, 0x04, // NAL data.
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// NAL 4
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0x00, 0x00, 0x00, 0x01, // Start code.
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0x01, 0x02, 0x03, 0x04, // NAL 2 data
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},
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// Second access unit.
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{
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// NAL 1
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0x00, 0x00, 0x00, 0x01, // Start code.
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typeSingleNALULowBound, // NAL header.
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0x01, 0x02, 0x03, 0x04, // Data.
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// NAL 2
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0x00, 0x00, 0x00, 0x01, // Start code.
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typeSingleNALULowBound, // NAL header.
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0x01, 0x02, 0x03, 0x04, // Data.
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},
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},
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},
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}
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for testNum, test := range tests {
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r := &rtpReader{packets: test.packets}
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d := &destination{}
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err := NewRTPLexer().Lex(d, r, 0)
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if err != nil {
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t.Fatalf("error lexing: %v\n", err)
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}
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for i, accessUnit := range test.expect {
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for j, part := range accessUnit {
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if part != [][]byte(*d)[i][j] {
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t.Fatalf("did not get expected data for test: %v.\nGot: %v\nWant: %v\n", testNum, d, test.expect)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|