Here is a quick snippet for configuring the output socket of a Transcoder for MP3 encoding using C#.

Diagram

flowchart TB
    is("<b>MediaSocket</b>\nFile: input.wav")
    os("<b>MediaSocket</b>\nType: MpegAudio\nSubtype: MpegAudioLayer3\nFile: output.mp3")
    tr("<b>Transcoder Block</b>\nopen\nrun\nclose")
    out["output.mp3"]

    in["input.wav"]
    out["output.mp3"]

    is --> |"add input"| tr 
    os --> |"add output"| tr
    
    in  --> |"read"| tr --> |"write"| out

Here is a quick snippet for configuring the output socket of a Transcoder for Advanced Audio Coding (AAC) / Audio Data Transport Stream (ADTS) encoding using C++.

Diagram

flowchart TB
    is("<b>MediaSocket</b>\nFile: input.wav")
    os("<b>MediaSocket</b>\nType: AAC\nSubtype: AAC_ADTS\nFile: output.aac")
    tr("<b>Transcoder Block</b>\nopen\nrun\nclose")

    in["input.wav"]
    out["output.aac"]

    is --> |"add input"| tr 
    os --> |"add output"| tr
    
    in  --> |"read"| tr --> |"write"| out

Here is a quick snippet for configuring the output socket of a Transcoder for MP3 encoding using C++.

Diagram

flowchart TB
    is("<b>MediaSocket</b>\nFile: input.wav")
    os("<b>MediaSocket</b>\nType: MPEG_Audio\nSubtype: MPEG_Audio_Layer3\nFile: output.mp3")
    tr("<b>Transcoder Block</b>\nopen\nrun\nclose")

    in["input.wav"]
    out["output.mp3"]

    is --> |"add input"| tr 
    os --> |"add output"| tr
    
    in  --> |"read"| tr --> |"write"| out

API

• Remove 32-bit application support (C++ and .NET)
• C++: Refactor API headers to use lowercase file names and subdirectories for namespaces
• .NET: New AVBlocks .NET SDK for macOS and Linux (based on .NET Core 6+)
• Distribute the AVBlocks Core and AVBlocks .NET Core through GitHub

API

• The MediaInfo object now implements the Block abstract interface.

Samples

• New overlay_mp4_png_file sample. This sample shows how to place a watermark on a video file by blending a video file with a PNG image.

There is a new parameter in AVBlocks 1.8 called MaxDecFrameBuffering (corresponding to max_dec_frame_buffering from the AVC / H.264 standard). It controls the decoded picture buffer size of the decoder and indirectly affects the decoding latency.

Update: This issue has been fixed as of version 1.6.

Wmvcore.dll is standard on all editions of Windows Vista and Windows 7 with the exception of the “N” editions. The “N” editions are distributed in Europe and do not include Windows Media Player and its related technologies.

This post assumes that you are using AVBlocks for .NET and you have purchased a license from the License Management site.

When you license a Primo Software product you usually get a license file in the email. The license file is basically a signed XML string that describes the products and features you have licensed. Then you have to provide the license to AVBlocks with the Library.SetLicense method.