咨询Cobalt带Widevine参考应用发布情况及请求特定Cobalt 11二进制包

Hey there, let's tackle your two questions about Cobalt and Widevine integration:

1. Has the Cobalt team released a reference app integrated with Widevine? #

Absolutely. The Cobalt team provides official reference applications that include Widevine integration as part of standard Cobalt release packages. These apps are built specifically to handle protected media playback via Widevine DRM, and you’ll find them included when you fetch relevant release sources or pre-built binaries (for supported platforms) from official Cobalt distribution channels.

2. Request for Cobalt Release 11 Binary (Widevine + VP9 Support) & Troubleshooting Your Decryption Issue #

First, pre-built binaries for Cobalt Release 11 with Widevine decryption and VP9 decoding support are available through official Cobalt release archives. Note that Widevine-enabled builds may require proper licensing and platform-specific configuration, so ensure you’re pulling the binary that matches your target platform (e.g., Linux, Android) and that you have the necessary permissions for Widevine access.

As for your core issue—where decrypted output is incorrect and inconsistent when passing different encrypted InputBuffers with the same PTS to SourceBuffer—here are a few key troubleshooting steps to check before using the new binary:

• Verify encryption metadata: Ensure each InputBuffer has correct key IDs, initialization vectors, and other DRM parameters aligned with your Widevine license. Mismatched metadata can easily cause corrupted decrypted data, even with identical PTS values.
• Check SourceBuffer management: Confirm you’re appending buffers in the correct order, and that there’s no race condition or misalignment in how encrypted data is passed to the Widevine CDM.
• Validate VP9 codec configuration: Make sure your VP9 codec setup matches the requirements of Cobalt Release 11—codec mismatches can sometimes manifest as incorrect decoded data immediately after decryption.

If you need direct access to the Release 11 binaries, retrieve them from official Cobalt release repositories (just ensure you have proper licensing in place for Widevine-enabled builds).

内容的提问来源于stack exchange，提问作者user7160805