gecko-dev/dom/media/gtest/TestWebMBuffered.cpp

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3.6 KiB
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "mozilla/ArrayUtils.h"
#include <stdio.h>
#include "nsTArray.h"
#include "WebMBufferedParser.h"
using namespace mozilla;
// "test.webm" contains 8 SimpleBlocks in a single Cluster. The blocks with
// timecodes 100000000 and are 133000000 skipped by WebMBufferedParser
// because they occur after a block with timecode 160000000 and the parser
// expects in-order timecodes per the WebM spec. The remaining 6
// SimpleBlocks have the following attributes:
static const uint64_t gTimecodes[] = { 66000000, 160000000, 166000000, 200000000, 233000000, 320000000 };
static const int64_t gEndOffsets[] = { 501, 772, 1244, 1380, 1543, 2015 };
TEST(WebMBuffered, BasicTests)
{
ReentrantMonitor dummy("dummy");
WebMBufferedParser parser(0);
nsTArray<WebMTimeDataOffset> mapping;
parser.Append(nullptr, 0, mapping, dummy);
EXPECT_TRUE(mapping.IsEmpty());
EXPECT_EQ(parser.mStartOffset, 0);
EXPECT_EQ(parser.mCurrentOffset, 0);
unsigned char buf[] = { 0x1a, 0x45, 0xdf, 0xa3 };
parser.Append(buf, ArrayLength(buf), mapping, dummy);
EXPECT_TRUE(mapping.IsEmpty());
EXPECT_EQ(parser.mStartOffset, 0);
EXPECT_EQ(parser.mCurrentOffset, 4);
}
static void
ReadFile(const char* aPath, nsTArray<uint8_t>& aBuffer)
{
FILE* f = fopen(aPath, "rb");
ASSERT_NE(f, (FILE *) nullptr);
int r = fseek(f, 0, SEEK_END);
ASSERT_EQ(r, 0);
long size = ftell(f);
ASSERT_NE(size, -1);
aBuffer.SetLength(size);
r = fseek(f, 0, SEEK_SET);
ASSERT_EQ(r, 0);
size_t got = fread(aBuffer.Elements(), 1, size, f);
ASSERT_EQ(got, size_t(size));
r = fclose(f);
ASSERT_EQ(r, 0);
}
TEST(WebMBuffered, RealData)
{
ReentrantMonitor dummy("dummy");
WebMBufferedParser parser(0);
nsTArray<uint8_t> webmData;
ReadFile("test.webm", webmData);
nsTArray<WebMTimeDataOffset> mapping;
parser.Append(webmData.Elements(), webmData.Length(), mapping, dummy);
EXPECT_EQ(mapping.Length(), 6u);
EXPECT_EQ(parser.mStartOffset, 0);
EXPECT_EQ(parser.mCurrentOffset, int64_t(webmData.Length()));
EXPECT_EQ(parser.GetTimecodeScale(), 500000u);
for (uint32_t i = 0; i < mapping.Length(); ++i) {
EXPECT_EQ(mapping[i].mEndOffset, gEndOffsets[i]);
EXPECT_EQ(mapping[i].mSyncOffset, 361);
EXPECT_EQ(mapping[i].mTimecode, gTimecodes[i]);
}
}
TEST(WebMBuffered, RealDataAppend)
{
ReentrantMonitor dummy("dummy");
WebMBufferedParser parser(0);
nsTArray<WebMTimeDataOffset> mapping;
nsTArray<uint8_t> webmData;
ReadFile("test.webm", webmData);
uint32_t arrayEntries = mapping.Length();
size_t offset = 0;
while (offset < webmData.Length()) {
parser.Append(webmData.Elements() + offset, 1, mapping, dummy);
offset += 1;
EXPECT_EQ(parser.mCurrentOffset, int64_t(offset));
if (mapping.Length() != arrayEntries) {
arrayEntries = mapping.Length();
ASSERT_LE(arrayEntries, 6u);
uint32_t i = arrayEntries - 1;
EXPECT_EQ(mapping[i].mEndOffset, gEndOffsets[i]);
EXPECT_EQ(mapping[i].mSyncOffset, 361);
EXPECT_EQ(mapping[i].mTimecode, gTimecodes[i]);
EXPECT_EQ(parser.GetTimecodeScale(), 500000u);
}
}
EXPECT_EQ(mapping.Length(), 6u);
EXPECT_EQ(parser.mStartOffset, 0);
EXPECT_EQ(parser.mCurrentOffset, int64_t(webmData.Length()));
EXPECT_EQ(parser.GetTimecodeScale(), 500000u);
for (uint32_t i = 0; i < mapping.Length(); ++i) {
EXPECT_EQ(mapping[i].mEndOffset, gEndOffsets[i]);
EXPECT_EQ(mapping[i].mSyncOffset, 361);
EXPECT_EQ(mapping[i].mTimecode, gTimecodes[i]);
}
}