534 lines
18 KiB
C++
534 lines
18 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <algorithm>
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#include "base/bind.h"
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#include "base/logging.h"
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#include "media/base/decrypt_config.h"
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#include "media/webm/cluster_builder.h"
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#include "media/webm/webm_cluster_parser.h"
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#include "media/webm/webm_constants.h"
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#include "testing/gmock/include/gmock/gmock.h"
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#include "testing/gtest/include/gtest/gtest.h"
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using ::testing::InSequence;
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using ::testing::Return;
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using ::testing::_;
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namespace media {
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enum {
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kTimecodeScale = 1000000, // Timecode scale for millisecond timestamps.
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kAudioTrackNum = 1,
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kVideoTrackNum = 2,
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kTextTrackNum = 3,
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};
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struct BlockInfo {
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int track_num;
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int timestamp;
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int duration;
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bool use_simple_block;
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};
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static const BlockInfo kDefaultBlockInfo[] = {
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{ kAudioTrackNum, 0, 23, true },
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{ kAudioTrackNum, 23, 23, true },
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{ kVideoTrackNum, 33, 34, true },
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{ kAudioTrackNum, 46, 23, true },
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{ kVideoTrackNum, 67, 33, false },
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{ kAudioTrackNum, 69, 23, false },
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{ kVideoTrackNum, 100, 33, false },
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};
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static const uint8 kEncryptedFrame[] = {
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0x01, // Block is encrypted
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 // IV
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};
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static scoped_ptr<Cluster> CreateCluster(int timecode,
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const BlockInfo* block_info,
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int block_count) {
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ClusterBuilder cb;
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cb.SetClusterTimecode(0);
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for (int i = 0; i < block_count; i++) {
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uint8 data[] = { 0x00 };
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if (block_info[i].use_simple_block) {
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cb.AddSimpleBlock(block_info[i].track_num,
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block_info[i].timestamp,
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0, data, sizeof(data));
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continue;
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}
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CHECK_GE(block_info[i].duration, 0);
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cb.AddBlockGroup(block_info[i].track_num,
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block_info[i].timestamp,
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block_info[i].duration,
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0, data, sizeof(data));
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}
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return cb.Finish();
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}
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// Creates a Cluster with one encrypted Block. |bytes_to_write| is number of
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// bytes of the encrypted frame to write.
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static scoped_ptr<Cluster> CreateEncryptedCluster(int bytes_to_write) {
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CHECK_GT(bytes_to_write, 0);
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CHECK_LE(bytes_to_write, static_cast<int>(sizeof(kEncryptedFrame)));
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ClusterBuilder cb;
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cb.SetClusterTimecode(0);
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cb.AddSimpleBlock(kVideoTrackNum, 0, 0, kEncryptedFrame, bytes_to_write);
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return cb.Finish();
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}
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static bool VerifyBuffers(const WebMClusterParser::BufferQueue& audio_buffers,
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const WebMClusterParser::BufferQueue& video_buffers,
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const WebMClusterParser::BufferQueue& text_buffers,
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const BlockInfo* block_info,
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int block_count) {
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size_t audio_offset = 0;
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size_t video_offset = 0;
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size_t text_offset = 0;
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for (int i = 0; i < block_count; i++) {
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const WebMClusterParser::BufferQueue* buffers = NULL;
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size_t* offset;
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if (block_info[i].track_num == kAudioTrackNum) {
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buffers = &audio_buffers;
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offset = &audio_offset;
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} else if (block_info[i].track_num == kVideoTrackNum) {
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buffers = &video_buffers;
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offset = &video_offset;
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} else if (block_info[i].track_num == kTextTrackNum) {
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buffers = &text_buffers;
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offset = &text_offset;
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} else {
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LOG(ERROR) << "Unexpected track number " << block_info[i].track_num;
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return false;
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}
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if (*offset >= buffers->size())
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return false;
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scoped_refptr<StreamParserBuffer> buffer = (*buffers)[(*offset)++];
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EXPECT_EQ(buffer->timestamp().InMilliseconds(), block_info[i].timestamp);
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if (!block_info[i].use_simple_block)
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EXPECT_NE(buffer->duration(), kNoTimestamp());
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if (buffer->duration() != kNoTimestamp())
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EXPECT_EQ(buffer->duration().InMilliseconds(), block_info[i].duration);
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}
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return true;
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}
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static bool VerifyBuffers(const scoped_ptr<WebMClusterParser>& parser,
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const BlockInfo* block_info,
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int block_count) {
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typedef WebMClusterParser::TextTrackIterator TextTrackIterator;
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TextTrackIterator text_it = parser->CreateTextTrackIterator();
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int text_track_num;
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const WebMClusterParser::BufferQueue* text_buffers;
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while (text_it(&text_track_num, &text_buffers))
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break;
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const WebMClusterParser::BufferQueue no_text_buffers;
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if (text_buffers == NULL)
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text_buffers = &no_text_buffers;
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return VerifyBuffers(parser->audio_buffers(),
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parser->video_buffers(),
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*text_buffers,
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block_info,
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block_count);
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}
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static bool VerifyTextBuffers(
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const scoped_ptr<WebMClusterParser>& parser,
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const BlockInfo* block_info_ptr,
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int block_count,
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int text_track_num,
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const WebMClusterParser::BufferQueue& text_buffers) {
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const BlockInfo* const block_info_end = block_info_ptr + block_count;
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typedef WebMClusterParser::BufferQueue::const_iterator TextBufferIter;
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TextBufferIter buffer_iter = text_buffers.begin();
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const TextBufferIter buffer_end = text_buffers.end();
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while (block_info_ptr != block_info_end) {
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const BlockInfo& block_info = *block_info_ptr++;
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if (block_info.track_num != text_track_num)
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continue;
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EXPECT_FALSE(block_info.use_simple_block);
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EXPECT_FALSE(buffer_iter == buffer_end);
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const scoped_refptr<StreamParserBuffer> buffer = *buffer_iter++;
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EXPECT_EQ(buffer->timestamp().InMilliseconds(), block_info.timestamp);
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EXPECT_EQ(buffer->duration().InMilliseconds(), block_info.duration);
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}
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EXPECT_TRUE(buffer_iter == buffer_end);
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return true;
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}
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static bool VerifyEncryptedBuffer(
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scoped_refptr<StreamParserBuffer> buffer) {
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EXPECT_TRUE(buffer->decrypt_config());
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EXPECT_EQ(static_cast<unsigned long>(DecryptConfig::kDecryptionKeySize),
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buffer->decrypt_config()->iv().length());
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const uint8* data = buffer->data();
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return data[0] & kWebMFlagEncryptedFrame;
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}
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static void AppendToEnd(const WebMClusterParser::BufferQueue& src,
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WebMClusterParser::BufferQueue* dest) {
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for (WebMClusterParser::BufferQueue::const_iterator itr = src.begin();
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itr != src.end(); ++itr) {
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dest->push_back(*itr);
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}
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}
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class WebMClusterParserTest : public testing::Test {
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public:
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WebMClusterParserTest()
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: parser_(new WebMClusterParser(kTimecodeScale,
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kAudioTrackNum,
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kVideoTrackNum,
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WebMTracksParser::TextTracks(),
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std::set<int64>(),
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std::string(),
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std::string(),
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LogCB())) {}
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protected:
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scoped_ptr<WebMClusterParser> parser_;
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};
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TEST_F(WebMClusterParserTest, Reset) {
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InSequence s;
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int block_count = arraysize(kDefaultBlockInfo);
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scoped_ptr<Cluster> cluster(CreateCluster(0, kDefaultBlockInfo, block_count));
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// Send slightly less than the full cluster so all but the last block is
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// parsed.
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int result = parser_->Parse(cluster->data(), cluster->size() - 1);
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EXPECT_GT(result, 0);
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EXPECT_LT(result, cluster->size());
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ASSERT_TRUE(VerifyBuffers(parser_, kDefaultBlockInfo, block_count - 1));
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parser_->Reset();
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// Now parse a whole cluster to verify that all the blocks will get parsed.
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result = parser_->Parse(cluster->data(), cluster->size());
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EXPECT_EQ(result, cluster->size());
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ASSERT_TRUE(VerifyBuffers(parser_, kDefaultBlockInfo, block_count));
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}
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TEST_F(WebMClusterParserTest, ParseClusterWithSingleCall) {
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int block_count = arraysize(kDefaultBlockInfo);
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scoped_ptr<Cluster> cluster(CreateCluster(0, kDefaultBlockInfo, block_count));
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int result = parser_->Parse(cluster->data(), cluster->size());
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EXPECT_EQ(cluster->size(), result);
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ASSERT_TRUE(VerifyBuffers(parser_, kDefaultBlockInfo, block_count));
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}
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TEST_F(WebMClusterParserTest, ParseClusterWithMultipleCalls) {
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int block_count = arraysize(kDefaultBlockInfo);
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scoped_ptr<Cluster> cluster(CreateCluster(0, kDefaultBlockInfo, block_count));
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WebMClusterParser::BufferQueue audio_buffers;
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WebMClusterParser::BufferQueue video_buffers;
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const WebMClusterParser::BufferQueue no_text_buffers;
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const uint8* data = cluster->data();
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int size = cluster->size();
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int default_parse_size = 3;
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int parse_size = std::min(default_parse_size, size);
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while (size > 0) {
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int result = parser_->Parse(data, parse_size);
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ASSERT_GE(result, 0);
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ASSERT_LE(result, parse_size);
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if (result == 0) {
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// The parser needs more data so increase the parse_size a little.
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parse_size += default_parse_size;
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parse_size = std::min(parse_size, size);
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continue;
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}
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AppendToEnd(parser_->audio_buffers(), &audio_buffers);
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AppendToEnd(parser_->video_buffers(), &video_buffers);
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parse_size = default_parse_size;
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data += result;
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size -= result;
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}
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ASSERT_TRUE(VerifyBuffers(audio_buffers, video_buffers,
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no_text_buffers, kDefaultBlockInfo,
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block_count));
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}
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// Verify that both BlockGroups with the BlockDuration before the Block
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// and BlockGroups with the BlockDuration after the Block are supported
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// correctly.
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// Note: Raw bytes are use here because ClusterBuilder only generates
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// one of these scenarios.
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TEST_F(WebMClusterParserTest, ParseBlockGroup) {
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const BlockInfo kBlockInfo[] = {
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{ kAudioTrackNum, 0, 23, false },
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{ kVideoTrackNum, 33, 34, false },
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};
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int block_count = arraysize(kBlockInfo);
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const uint8 kClusterData[] = {
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0x1F, 0x43, 0xB6, 0x75, 0x9B, // Cluster(size=27)
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0xE7, 0x81, 0x00, // Timecode(size=1, value=0)
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// BlockGroup with BlockDuration before Block.
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0xA0, 0x8A, // BlockGroup(size=10)
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0x9B, 0x81, 0x17, // BlockDuration(size=1, value=23)
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0xA1, 0x85, 0x81, 0x00, 0x00, 0x00, 0xaa, // Block(size=5, track=1, ts=0)
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// BlockGroup with BlockDuration after Block.
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0xA0, 0x8A, // BlockGroup(size=10)
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0xA1, 0x85, 0x82, 0x00, 0x21, 0x00, 0x55, // Block(size=5, track=2, ts=33)
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0x9B, 0x81, 0x22, // BlockDuration(size=1, value=34)
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};
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const int kClusterSize = sizeof(kClusterData);
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int result = parser_->Parse(kClusterData, kClusterSize);
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EXPECT_EQ(result, kClusterSize);
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ASSERT_TRUE(VerifyBuffers(parser_, kBlockInfo, block_count));
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}
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TEST_F(WebMClusterParserTest, ParseSimpleBlockAndBlockGroupMixture) {
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const BlockInfo kBlockInfo[] = {
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{ kAudioTrackNum, 0, 23, true },
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{ kAudioTrackNum, 23, 23, false },
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{ kVideoTrackNum, 33, 34, true },
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{ kAudioTrackNum, 46, 23, false },
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{ kVideoTrackNum, 67, 33, false },
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};
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int block_count = arraysize(kBlockInfo);
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scoped_ptr<Cluster> cluster(CreateCluster(0, kBlockInfo, block_count));
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int result = parser_->Parse(cluster->data(), cluster->size());
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EXPECT_EQ(cluster->size(), result);
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ASSERT_TRUE(VerifyBuffers(parser_, kBlockInfo, block_count));
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}
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TEST_F(WebMClusterParserTest, IgnoredTracks) {
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std::set<int64> ignored_tracks;
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ignored_tracks.insert(kTextTrackNum);
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parser_.reset(new WebMClusterParser(kTimecodeScale,
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kAudioTrackNum,
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kVideoTrackNum,
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WebMTracksParser::TextTracks(),
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ignored_tracks,
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std::string(),
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std::string(),
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LogCB()));
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const BlockInfo kInputBlockInfo[] = {
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{ kAudioTrackNum, 0, 23, true },
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{ kAudioTrackNum, 23, 23, true },
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{ kVideoTrackNum, 33, 33, true },
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{ kTextTrackNum, 33, 99, true },
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{ kAudioTrackNum, 46, 23, true },
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{ kVideoTrackNum, 67, 33, true },
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};
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int input_block_count = arraysize(kInputBlockInfo);
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const BlockInfo kOutputBlockInfo[] = {
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{ kAudioTrackNum, 0, 23, true },
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{ kAudioTrackNum, 23, 23, true },
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{ kVideoTrackNum, 33, 33, true },
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{ kAudioTrackNum, 46, 23, true },
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{ kVideoTrackNum, 67, 33, true },
|
||
|
|
};
|
||
|
|
int output_block_count = arraysize(kOutputBlockInfo);
|
||
|
|
|
||
|
|
scoped_ptr<Cluster> cluster(
|
||
|
|
CreateCluster(0, kInputBlockInfo, input_block_count));
|
||
|
|
|
||
|
|
int result = parser_->Parse(cluster->data(), cluster->size());
|
||
|
|
EXPECT_EQ(cluster->size(), result);
|
||
|
|
ASSERT_TRUE(VerifyBuffers(parser_, kOutputBlockInfo, output_block_count));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(WebMClusterParserTest, ParseTextTracks) {
|
||
|
|
typedef WebMTracksParser::TextTracks TextTracks;
|
||
|
|
TextTracks text_tracks;
|
||
|
|
WebMTracksParser::TextTrackInfo text_track_info;
|
||
|
|
|
||
|
|
text_track_info.kind = kTextSubtitles;
|
||
|
|
text_tracks.insert(std::make_pair(TextTracks::key_type(kTextTrackNum),
|
||
|
|
text_track_info));
|
||
|
|
|
||
|
|
parser_.reset(new WebMClusterParser(kTimecodeScale,
|
||
|
|
kAudioTrackNum,
|
||
|
|
kVideoTrackNum,
|
||
|
|
text_tracks,
|
||
|
|
std::set<int64>(),
|
||
|
|
std::string(),
|
||
|
|
std::string(),
|
||
|
|
LogCB()));
|
||
|
|
|
||
|
|
const BlockInfo kInputBlockInfo[] = {
|
||
|
|
{ kAudioTrackNum, 0, 23, true },
|
||
|
|
{ kAudioTrackNum, 23, 23, true },
|
||
|
|
{ kVideoTrackNum, 33, 33, true },
|
||
|
|
{ kTextTrackNum, 33, 42, false },
|
||
|
|
{ kAudioTrackNum, 46, 23, true },
|
||
|
|
{ kTextTrackNum, 55, 44, false },
|
||
|
|
{ kVideoTrackNum, 67, 33, true },
|
||
|
|
};
|
||
|
|
int input_block_count = arraysize(kInputBlockInfo);
|
||
|
|
|
||
|
|
scoped_ptr<Cluster> cluster(
|
||
|
|
CreateCluster(0, kInputBlockInfo, input_block_count));
|
||
|
|
|
||
|
|
int result = parser_->Parse(cluster->data(), cluster->size());
|
||
|
|
EXPECT_EQ(cluster->size(), result);
|
||
|
|
ASSERT_TRUE(VerifyBuffers(parser_, kInputBlockInfo, input_block_count));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(WebMClusterParserTest, TextTracksSimpleBlock) {
|
||
|
|
typedef WebMTracksParser::TextTracks TextTracks;
|
||
|
|
TextTracks text_tracks;
|
||
|
|
WebMTracksParser::TextTrackInfo text_track_info;
|
||
|
|
|
||
|
|
text_track_info.kind = kTextSubtitles;
|
||
|
|
text_tracks.insert(std::make_pair(TextTracks::key_type(kTextTrackNum),
|
||
|
|
text_track_info));
|
||
|
|
|
||
|
|
parser_.reset(new WebMClusterParser(kTimecodeScale,
|
||
|
|
kAudioTrackNum,
|
||
|
|
kVideoTrackNum,
|
||
|
|
text_tracks,
|
||
|
|
std::set<int64>(),
|
||
|
|
std::string(),
|
||
|
|
std::string(),
|
||
|
|
LogCB()));
|
||
|
|
|
||
|
|
const BlockInfo kInputBlockInfo[] = {
|
||
|
|
{ kTextTrackNum, 33, 42, true },
|
||
|
|
};
|
||
|
|
int input_block_count = arraysize(kInputBlockInfo);
|
||
|
|
|
||
|
|
scoped_ptr<Cluster> cluster(
|
||
|
|
CreateCluster(0, kInputBlockInfo, input_block_count));
|
||
|
|
|
||
|
|
int result = parser_->Parse(cluster->data(), cluster->size());
|
||
|
|
EXPECT_LT(result, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(WebMClusterParserTest, ParseMultipleTextTracks) {
|
||
|
|
typedef WebMTracksParser::TextTracks TextTracks;
|
||
|
|
TextTracks text_tracks;
|
||
|
|
WebMTracksParser::TextTrackInfo text_track_info;
|
||
|
|
|
||
|
|
const int kSubtitleTextTrackNum = kTextTrackNum;
|
||
|
|
const int kCaptionTextTrackNum = kTextTrackNum + 1;
|
||
|
|
|
||
|
|
text_track_info.kind = kTextSubtitles;
|
||
|
|
text_tracks.insert(std::make_pair(TextTracks::key_type(kSubtitleTextTrackNum),
|
||
|
|
text_track_info));
|
||
|
|
|
||
|
|
text_track_info.kind = kTextCaptions;
|
||
|
|
text_tracks.insert(std::make_pair(TextTracks::key_type(kCaptionTextTrackNum),
|
||
|
|
text_track_info));
|
||
|
|
|
||
|
|
parser_.reset(new WebMClusterParser(kTimecodeScale,
|
||
|
|
kAudioTrackNum,
|
||
|
|
kVideoTrackNum,
|
||
|
|
text_tracks,
|
||
|
|
std::set<int64>(),
|
||
|
|
std::string(),
|
||
|
|
std::string(),
|
||
|
|
LogCB()));
|
||
|
|
|
||
|
|
const BlockInfo kInputBlockInfo[] = {
|
||
|
|
{ kAudioTrackNum, 0, 23, true },
|
||
|
|
{ kAudioTrackNum, 23, 23, true },
|
||
|
|
{ kVideoTrackNum, 33, 33, true },
|
||
|
|
{ kSubtitleTextTrackNum, 33, 42, false },
|
||
|
|
{ kAudioTrackNum, 46, 23, true },
|
||
|
|
{ kCaptionTextTrackNum, 55, 44, false },
|
||
|
|
{ kVideoTrackNum, 67, 33, true },
|
||
|
|
{ kSubtitleTextTrackNum, 67, 33, false },
|
||
|
|
};
|
||
|
|
int input_block_count = arraysize(kInputBlockInfo);
|
||
|
|
|
||
|
|
scoped_ptr<Cluster> cluster(
|
||
|
|
CreateCluster(0, kInputBlockInfo, input_block_count));
|
||
|
|
|
||
|
|
int result = parser_->Parse(cluster->data(), cluster->size());
|
||
|
|
EXPECT_EQ(cluster->size(), result);
|
||
|
|
|
||
|
|
WebMClusterParser::TextTrackIterator text_it =
|
||
|
|
parser_->CreateTextTrackIterator();
|
||
|
|
|
||
|
|
int text_track_num;
|
||
|
|
const WebMClusterParser::BufferQueue* text_buffers;
|
||
|
|
|
||
|
|
while (text_it(&text_track_num, &text_buffers)) {
|
||
|
|
const WebMTracksParser::TextTracks::const_iterator find_result =
|
||
|
|
text_tracks.find(text_track_num);
|
||
|
|
ASSERT_TRUE(find_result != text_tracks.end());
|
||
|
|
ASSERT_TRUE(VerifyTextBuffers(parser_, kInputBlockInfo, input_block_count,
|
||
|
|
text_track_num, *text_buffers));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(WebMClusterParserTest, ParseEncryptedBlock) {
|
||
|
|
scoped_ptr<Cluster> cluster(CreateEncryptedCluster(sizeof(kEncryptedFrame)));
|
||
|
|
|
||
|
|
parser_.reset(new WebMClusterParser(kTimecodeScale,
|
||
|
|
kAudioTrackNum,
|
||
|
|
kVideoTrackNum,
|
||
|
|
WebMTracksParser::TextTracks(),
|
||
|
|
std::set<int64>(),
|
||
|
|
std::string(),
|
||
|
|
"video_key_id",
|
||
|
|
LogCB()));
|
||
|
|
int result = parser_->Parse(cluster->data(), cluster->size());
|
||
|
|
EXPECT_EQ(cluster->size(), result);
|
||
|
|
ASSERT_EQ(1UL, parser_->video_buffers().size());
|
||
|
|
scoped_refptr<StreamParserBuffer> buffer = parser_->video_buffers()[0];
|
||
|
|
EXPECT_TRUE(VerifyEncryptedBuffer(buffer));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(WebMClusterParserTest, ParseBadEncryptedBlock) {
|
||
|
|
scoped_ptr<Cluster> cluster(
|
||
|
|
CreateEncryptedCluster(sizeof(kEncryptedFrame) - 1));
|
||
|
|
|
||
|
|
parser_.reset(new WebMClusterParser(kTimecodeScale,
|
||
|
|
kAudioTrackNum,
|
||
|
|
kVideoTrackNum,
|
||
|
|
WebMTracksParser::TextTracks(),
|
||
|
|
std::set<int64>(),
|
||
|
|
std::string(),
|
||
|
|
"video_key_id",
|
||
|
|
LogCB()));
|
||
|
|
int result = parser_->Parse(cluster->data(), cluster->size());
|
||
|
|
EXPECT_EQ(-1, result);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace media
|