// Copyright (c) 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "packager/media/formats/webm/single_segment_segmenter.h"
#include "packager/media/formats/webm/two_pass_single_segment_segmenter.h"

#include <gtest/gtest.h>

#include "packager/base/memory/scoped_ptr.h"
#include "packager/media/base/fixed_key_source.h"
#include "packager/media/formats/webm/segmenter_test_base.h"

namespace edash_packager {
namespace media {
namespace {

const uint64_t kDuration = 1000;
const std::string kKeyId = "4c6f72656d20697073756d20646f6c6f";
const std::string kIv = "0123456789012345";
const std::string kKey = "01234567890123456789012345678901";
const std::string kPsshData = "";

const uint8_t kBasicSupportData[] = {
  // ID: EBML Header, Payload Size: 31
  0x1a, 0x45, 0xdf, 0xa3, 0x9f,
    // EBMLVersion: 1
    0x42, 0x86, 0x81, 0x01,
    // EBMLReadVersion: 1
    0x42, 0xf7, 0x81, 0x01,
    // EBMLMaxIDLength: 4
    0x42, 0xf2, 0x81, 0x04,
    // EBMLMaxSizeLength: 8
    0x42, 0xf3, 0x81, 0x08,
    // DocType: 'webm'
    0x42, 0x82, 0x84, 0x77, 0x65, 0x62, 0x6d,
    // DocTypeVersion: 2
    0x42, 0x87, 0x81, 0x02,
    // DocTypeReadVersion: 2
    0x42, 0x85, 0x81, 0x02,
  // ID: Segment, Payload Size: 411
  0x18, 0x53, 0x80, 0x67, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x9b,
    // ID: SeekHead, Payload Size: 30
    0x11, 0x4d, 0x9b, 0x74, 0x9e,
      // ID: Seek, Payload Size: 12
      0x4d, 0xbb, 0x8c,
        // SeekID: binary(4) (Cluster)
        0x53, 0xab, 0x84, 0x1f, 0x43, 0xb6, 0x75,
        // SeekPosition: 322
        0x53, 0xac, 0x82, 0x01, 0x47,
      // ID: Seek, Payload Size: 12
      0x4d, 0xbb, 0x8c,
        // SeekID: binary(4) (Cues)
        0x53, 0xab, 0x84, 0x1c, 0x53, 0xbb, 0x6b,
        // SeekPosition: 429
        0x53, 0xac, 0x82, 0x01, 0xb8,
    // ID: Void, Payload Size: 52
    0xec, 0xb4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    // ID: Info, Payload Size: 88
    0x15, 0x49, 0xa9, 0x66, 0xd8,
      // TimecodeScale: 1000000
      0x2a, 0xd7, 0xb1, 0x83, 0x0f, 0x42, 0x40,
      // Duration: float(5000)
      0x44, 0x89, 0x84, 0x45, 0x9c, 0x40, 0x00,
      // MuxingApp: 'libwebm-0.2.1.0'
      0x4d, 0x80, 0x8f, 0x6c, 0x69, 0x62, 0x77, 0x65, 0x62, 0x6d, 0x2d, 0x30,
      0x2e, 0x32, 0x2e, 0x31, 0x2e, 0x30,
      // WritingApp: 'https://github.com/google/edash-packager version test'
      0x57, 0x41, 0xb5,
      0x68, 0x74, 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x67, 0x69, 0x74, 0x68,
      0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
      0x65, 0x2f, 0x65, 0x64, 0x61, 0x73, 0x68, 0x2d, 0x70, 0x61, 0x63, 0x6b,
      0x61, 0x67, 0x65, 0x72, 0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e,
      0x20, 0x74, 0x65, 0x73, 0x74,
    // ID: Tracks, Payload Size: 92
    0x16, 0x54, 0xae, 0x6b, 0xdc,
      // ID: Track, Payload Size: 90
      0xae, 0xda,
        // TrackNumber: 1
        0xd7, 0x81, 0x01,
        // TrackUID: 1
        0x73, 0xc5, 0x81, 0x01,
        // TrackType: 1
        0x83, 0x81, 0x01,
        // CodecID: 'V_VP8'
        0x86, 0x85, 0x56, 0x5f, 0x56, 0x50, 0x38,
        // Language: 'en'
        0x22, 0xb5, 0x9c, 0x82, 0x65, 0x6e,
        // ID: ContentEncodings, Payload Size: 48
        0x6d, 0x80, 0xb0,
          // ID: ContentEncoding, Payload Size: 45
          0x62, 0x40, 0xad,
            // ContentEncodingOrder: 0
            0x50, 0x31, 0x81, 0x00,
            // ContentEncodingScope: 1
            0x50, 0x32, 0x81, 0x01,
            // ContentEncodingType: 1
            0x50, 0x33, 0x81, 0x01,
            // ID: ContentEncryption, Payload Size: 30
            0x50, 0x35, 0x9e,
              // ContentEncAlgo: 5
              0x47, 0xe1, 0x81, 0x05,
              // ContentEncKeyID: binary(16)
              0x47, 0xe2, 0x90,
                0x4c, 0x6f, 0x72, 0x65, 0x6d, 0x20, 0x69, 0x70,
                0x73, 0x75, 0x6d, 0x20, 0x64, 0x6f, 0x6c, 0x6f,
              // ID: ContentEncAESSettings, Payload Size: 4
              0x47, 0xe7, 0x84,
                // AESSettingsCipherMode: 1
                0x47, 0xe8, 0x81, 0x01,
        // ID: Video, Payload Size: 14
        0xe0, 0x8e,
          // PixelWidth: 100
          0xb0, 0x81, 0x64,
          // PixelHeight: 100
          0xba, 0x81, 0x64,
          // DisplayWidth: 100
          0x54, 0xb0, 0x81, 0x64,
          // DisplayHeight: 100
          0x54, 0xba, 0x81, 0x64,
    // ID: Cluster, Payload Size: 101
    0x1f, 0x43, 0xb6, 0x75, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x65,
      // Timecode: 0
      0xe7, 0x81, 0x00,
      // ID: SimpleBlock, Payload Size: 10
      0xa3, 0x8a, 0x81, 0x00, 0x00, 0x80,
        // Signal Byte: Clear
        0x00,
        // Frame Data:
        0xde, 0xad, 0xbe, 0xef, 0x00,
      // ID: SimpleBlock, Payload Size: 18
      0xa3, 0x92, 0x81, 0x03, 0xe8, 0x80,
        // Signal Byte: Encrypted
        0x01,
        // IV:
        0x01, 0x23, 0x45, 0x67, 0x89, 0x01, 0x23, 0x45,
        // Frame Data:
        0xcc, 0x03, 0xef, 0xc4, 0xf4,
      // ID: SimpleBlock, Payload Size: 18
      0xa3, 0x92, 0x81, 0x07, 0xd0, 0x80,
        // Signal Byte: Encrypted
        0x01,
        // IV:
        0x01, 0x23, 0x45, 0x67, 0x89, 0x01, 0x23, 0x46,
        // Frame Data:
        0xbf, 0x38, 0x72, 0x20, 0xac,
      // ID: SimpleBlock, Payload Size: 18
      0xa3, 0x92, 0x81, 0x0b, 0xb8, 0x80,
        // Signal Byte: Encrypted
        0x01,
        // IV:
        0x01, 0x23, 0x45, 0x67, 0x89, 0x01, 0x23, 0x47,
        // Frame Data:
        0x0d, 0x8e, 0xae, 0xbe, 0xd0,
      // ID: BlockGroup, Payload Size: 24
      0xa0, 0x98,
        // ID: Block, Payload Size: 18
        0xa1, 0x92, 0x81, 0x0f, 0xa0, 0x00,
          // Signal Byte: Encrypted
          0x01,
          // IV:
          0x01, 0x23, 0x45, 0x67, 0x89, 0x01, 0x23, 0x48,
          // Frame Data:
          0xa5, 0x97, 0xf8, 0x9e, 0x87,
        // BlockDuration: 1000
        0x9b, 0x82, 0x03, 0xe8,
    // ID: Cues, Payload Size: 14
    0x1c, 0x53, 0xbb, 0x6b, 0x8e,
      // ID: CuePoint, Payload Size: 12
      0xbb, 0x8c,
        // CueTime: 0
        0xb3, 0x81, 0x00,
        // ID: CueTrackPositions, Payload Size: 7
        0xb7, 0x87,
          // CueTrack: 1
          0xf7, 0x81, 0x01,
          // CueClusterPosition: 279
          0xf1, 0x82, 0x01, 0x17
};

}  // namespace

class EncrypedSegmenterTest : public SegmentTestBase {
 public:
  EncrypedSegmenterTest() : info_(CreateVideoStreamInfo()) {}

 protected:
  void InitializeSegmenter(const MuxerOptions& options) {
    key_source_ =
        FixedKeySource::CreateFromHexStrings(kKeyId, kKey, kPsshData, kIv);
    ASSERT_NO_FATAL_FAILURE(
        CreateAndInitializeSegmenter<webm::SingleSegmentSegmenter>(
            options, info_.get(), key_source_.get(), &segmenter_));
  }

  scoped_refptr<StreamInfo> info_;
  scoped_ptr<webm::Segmenter> segmenter_;
  scoped_ptr<KeySource> key_source_;
};

TEST_F(EncrypedSegmenterTest, BasicSupport) {
  MuxerOptions options = CreateMuxerOptions();
  ASSERT_NO_FATAL_FAILURE(InitializeSegmenter(options));

  // Write the samples to the Segmenter.
  for (int i = 0; i < 5; i++) {
    scoped_refptr<MediaSample> sample =
        CreateSample(kKeyFrame, kDuration, kNoSideData);
    ASSERT_OK(segmenter_->AddSample(sample));
  }
  ASSERT_OK(segmenter_->Finalize());

  ASSERT_FILE_EQ(OutputFileName().c_str(), kBasicSupportData);
}

}  // namespace media
}  // namespace edash_packager