1ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org/* 2ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. 3ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * 4ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * Use of this source code is governed by a BSD-style license 5ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * that can be found in the LICENSE file in the root of the source 6ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * tree. An additional intellectual property rights grant can be found 7ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * in the file PATENTS. All contributing project authors may 8ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org * be found in the AUTHORS file in the root of the source tree. 9ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org */ 10ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 11ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org#include <limits> 12ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 13ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org#include "testing/gtest/include/gtest/gtest.h" 14ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org#include "webrtc/common_audio/wav_header.h" 15ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org#include "webrtc/system_wrappers/interface/compile_assert.h" 16ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 17ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org// Try various choices of WAV header parameters, and make sure that the good 18ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org// ones are accepted and the bad ones rejected. 19ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.orgTEST(WavHeaderTest, CheckWavParameters) { 20ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org // Try some really stupid values for one parameter at a time. 21ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_TRUE(webrtc::CheckWavParameters(1, 8000, webrtc::kWavFormatPcm, 1, 0)); 22ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 23ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(0, 8000, webrtc::kWavFormatPcm, 1, 0)); 24ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 25ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(-1, 8000, webrtc::kWavFormatPcm, 1, 0)); 26ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE(webrtc::CheckWavParameters(1, 0, webrtc::kWavFormatPcm, 1, 0)); 27ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE(webrtc::CheckWavParameters(1, 8000, webrtc::WavFormat(0), 1, 0)); 28ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 29ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(1, 8000, webrtc::kWavFormatPcm, 0, 0)); 30ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 31ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org // Try invalid format/bytes-per-sample combinations. 32ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_TRUE(webrtc::CheckWavParameters(1, 8000, webrtc::kWavFormatPcm, 2, 0)); 33ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 34ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(1, 8000, webrtc::kWavFormatPcm, 4, 0)); 35ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 36ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(1, 8000, webrtc::kWavFormatALaw, 2, 0)); 37ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 38ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(1, 8000, webrtc::kWavFormatMuLaw, 2, 0)); 39ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 40ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org // Too large values. 41ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE(webrtc::CheckWavParameters( 42ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 1 << 20, 1 << 20, webrtc::kWavFormatPcm, 1, 0)); 43ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE(webrtc::CheckWavParameters( 44ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 1, 8000, webrtc::kWavFormatPcm, 1, std::numeric_limits<uint32_t>::max())); 45ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 46ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org // Not the same number of samples for each channel. 47ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_FALSE( 48ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::CheckWavParameters(3, 8000, webrtc::kWavFormatPcm, 1, 5)); 49ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org} 50ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 51ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org// Try writing a WAV header and make sure it looks OK. 52ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.orgTEST(WavHeaderTest, WriteWavHeader) { 53ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org static const int kSize = 4 + webrtc::kWavHeaderSize + 4; 54ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org uint8_t buf[kSize]; 55ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org memset(buf, 0xa4, sizeof(buf)); 56ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org webrtc::WriteWavHeader( 57ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org buf + 4, 17, 12345, webrtc::kWavFormatALaw, 1, 123457689); 58ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org static const uint8_t kExpectedBuf[] = { 59ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 0xa4, 0xa4, 0xa4, 0xa4, // untouched bytes before header 60ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 'R', 'I', 'F', 'F', 61ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 62ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 'W', 'A', 'V', 'E', 63ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 'f', 'm', 't', ' ', 64ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 16, 0, 0, 0, // size of fmt block - 8: 24 - 8 65ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 6, 0, // format: A-law (6) 66ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 17, 0, // channels: 17 67ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 0x39, 0x30, 0, 0, // sample rate: 12345 68ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 69ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 17, 0, // block align: NumChannels * BytesPerSample 70ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 8, 0, // bits per sample: 1 * 8 71ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 'd', 'a', 't', 'a', 72ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 73ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org 0xa4, 0xa4, 0xa4, 0xa4, // untouched bytes after header 74ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org }; 75ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org COMPILE_ASSERT(sizeof(kExpectedBuf) == kSize, buf_size); 76ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org EXPECT_EQ(0, memcmp(kExpectedBuf, buf, kSize)); 77ddd80b5eacf50958c4335eb5a535e07aa8b05369kwiberg@webrtc.org} 78