Edit

Share via

PlayReady 4.0+ Test Content

This section contains a collection of test content that can be used to validate some PlayReady 4.X scenarios, for example using CBCS encryption.

Important Notes

Some of the test content listed below was created long ago and includes a default LA_URL in their PlayReady Header which no longer exist. We recommend that you use this test content with a specific LA_URL that you set in your client app, instead of relying on the default value.

Recommended LA_URL for most content:

LA_URL = http://test.playready.microsoft.com/service/rightsmanager.asmx?cfg=(persist:false,sl:150)

Test Content Collection

Big Buck Bunny - H.264/AAC CENC CBCS

Content Details:

  • Description: H264/AAC CENC CBCS with video and audio protected
  • Tool Chain: Apple toolset - 16-byte IV (128-bit Initialization Vector)
  • Creation Date: September 1, 2017
  • Video Encoding: H.264
  • Audio Encoding: AAC 2-channels
  • Encryption Settings: CENC CBCS with 16-byte IV
    • KID: AAAAEAAQABAQABAAAAAAAQ==
    • Content Key: W31bfVt9W31bfVt9W31bfQ==
    • Video Track: Encrypted with CBCS 1:9 pattern
    • Audio Track: Fully encrypted (crypt_byte_block = skip_byte_block = 0)
  • Video KID: {10000000-1000-1000-1000-100000000001}
  • Audio KID: {10000000-1000-1000-1000-100000000001}
  • Multi DRM: False
  • PlayReady WRMHEADER: 4.3
  • LA URL: http://test.playready.microsoft.com/service/rightsmanager.asmx?cfg=(persist:false,ck:W31bfVt9W31bfVt9W31bfQ==,ckt:aescbc)

Content URLs:

  • MP4 CENC CBCS (clear): https://test.playready.microsoft.com/media/dash/APPLEENC_CBCS_BBB_1080p/clear/bbb_sunflower_1080p_60fps_normal.mp4
  • MPEG-DASH (protected): https://test.playready.microsoft.com/media/dash/APPLEENC_CBCS_BBB_1080p/1080p.mpd
  • HLS (protected): https://test.playready.microsoft.com/media/dash/APPLEENC_CBCS_BBB_1080p/1080p_alternate.m3u8

Technical Notes:

The Apple toolset contains a bug that sets the KID value in the moov.trak.mdia.minf.stbl.stsd.encv.sinf.tenc box to 0, where it should be equal to the value set in the manifest according to the DASH CENC specification.

VP9 - Tears of Steel CENC CTR

Content Details:

  • Description: Fragmented MP4 file with a VP9 video track encrypted with CENC (CTR mode)
  • Tool Chain: Not specified
  • Creation Date: October 1, 2017
  • Video Encoding: VP9
  • Audio Encoding: None
  • Encryption Settings: CENC CTR
  • Video KID: {00000000-03fc-eacd-0000-000000000000}
  • Multi DRM: True
  • PlayReady WRMHEADER: 4.0
  • LA URL: http://test.playready.microsoft.com/service/rightsmanager.asmx?cfg=(contentkey:MeXKilhhoLl25CHFTGEDRg==,kid:00000000-03FC-EACD-0000-000000000000)

Content URLs:

  • MP4 CENC CTR (protected): https://test.playready.microsoft.com/media/vp9/VP9_TearsOfSteel_12min_543_repackaged_20170523.mp4.ismv

Key Features

CBCS Encryption

PlayReady 4.0 introduces support for CBC (Cipher Block Chaining) encryption mode:

  • Pattern Encryption: Supports subsample encryption patterns (e.g., 1:9 pattern)
  • Enhanced Security: CBC mode provides additional security features
  • Apple Compatibility: Works with Apple's encryption toolchain
  • 16-byte IV: Uses 128-bit Initialization Vectors

AESCBC Content Key Type

New in PlayReady 4.0:

  • Content Key Type: aescbc parameter in license acquisition
  • Enhanced Encryption: AES-CBC mode instead of AES-CTR
  • Backward Compatibility: Maintains compatibility with existing content

VP9 Codec Support

PlayReady 4.0 extends codec support:

  • VP9 Video: Modern video codec support
  • Multi-DRM: Cross-platform DRM compatibility
  • Fragmented MP4: Modern container format support

Content Formats

MPEG-DASH

  • Modern Standard: Industry-standard adaptive streaming
  • CBCS Support: Common Encryption with CBC mode
  • Cross-Platform: Works across multiple devices and platforms

HLS (HTTP Live Streaming)

  • Apple Standard: Native support for Apple devices
  • CBCS Integration: Works with Apple's encryption toolchain
  • Alternative Renditions: Multiple quality levels

Fragmented MP4

  • Modern Container: Optimized for streaming
  • VP9 Support: Advanced video codec compatibility
  • Efficient Delivery: Reduced latency and improved performance

Encryption Specifications

CENC CBCS Details

According to ISO/IEC 23001-7:2015(E):

  • Video Pattern: 1:9 encryption pattern (1 encrypted block, 9 clear blocks)
  • Audio Encryption: Full encryption with crypt_byte_block = skip_byte_block = 0
  • IV Length: 16-byte (128-bit) Initialization Vectors
  • Block Cipher: AES-128-CBC mode

Content Key Management

  • Fixed Keys: Predetermined content keys for testing
  • Key Rotation: Not applicable for test content
  • Multi-Key: Support for separate audio/video keys

Usage Guidelines

Testing Scenarios

  1. CBCS Validation: Test CBC encryption mode support
  2. VP9 Compatibility: Verify modern codec handling
  3. Multi-DRM: Test cross-platform DRM scenarios
  4. Pattern Encryption: Validate subsample encryption

Client Requirements

  • PlayReady 4.0+: Required for CBCS and VP9 support
  • VP9 Decoder: Hardware or software VP9 capability
  • CBCS Support: CBC encryption mode handling
  • Modern Containers: Fragmented MP4 and DASH support

Performance Considerations

  • Decode Performance: VP9 requires significant processing power
  • Pattern Encryption: May impact decode performance
  • Network Efficiency: Modern formats optimize bandwidth usage

Troubleshooting

Common Issues

  1. CBCS Compatibility

    • Verify client supports CBC encryption mode
    • Check for proper pattern encryption handling
    • Validate IV handling for 16-byte vectors

  2. VP9 Playback

    • Confirm VP9 decoder availability
    • Check hardware acceleration support
    • Verify container format compatibility

  3. Apple Toolchain Issues

    • Be aware of KID handling bug in Apple tools
    • Use manifest KID values instead of container values
    • Test with different Apple toolchain versions

Debug Information

  • Encryption Mode: Verify CBCS vs CENC CTR handling
  • Pattern Information: Check encryption pattern compliance
  • Codec Support: Validate VP9 decoder capability
  • Container Parsing: Verify fragmented MP4 handling

Support Resources

For technical support and additional information:

See Also

  • Last updated on