bool AL_Encoder_PutStreamBuffer(AL_HEncoder hEnc, AL_TBuffer* pStream) - 2023.1 English

H.264/H.265 Video Codec Unit v1.2 Solutions LogiCORE IP Product Guide (PG252)

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Release Date
2023.1 English
[in] hEnc Handle to an encoder object
[in] pStream Pointer to the stream buffer given to the encoder


Tells the Encoder where to write the encoded bitstream. The firmware can only handle 320 stream buffers at a given time. However, as the encoder releases one stream buffer after each encoded frame (or slice), the function AL_Encoder_PutStreamBuffer can be called more than 320 times. The pStream argument must have an associated AL_TStreamMetaData pointer added to it. The metadata can be created by AL_StreamMetaData_Create(sectionNumber, uMaxSize) and added with AL_Buffer_AddMetaData(pStream, pMeta), subject to the following constraints:

  • sectionNumber = AL_MAX_SECTION, or greater if needed (such as for added SEI within the stream)
  • uMaxSize shall be 32-bit aligned
    Note: Does not perform error checking for too many buffers or duplicate buffers.


Returns true


AL_StreamMetaData_Create, AL_Buffer_AddMetaData, AL_Encoder_Create, AL_Encoder_Destroy