static int getPacket()

in source/T31/T31VideoCapturer.c [57:76]

• 14 lines of code
• 7 McCabe index (conditional complexity)

static int getPacket(IMPEncoderStream* pStream, IMPEncoderPack* pPack, uint8_t* pPacketBuf, size_t uPacketSize)
{
    if (pStream == NULL || pPack == NULL || pPacketBuf == NULL || uPacketSize == 0 || pPack->length == 0) {
        return -EINVAL;
    }

    /*  virAddr is a ringbuffer, and the packet may be cut into 2 pieces. */
    uint32_t uRemainingSize = pStream->streamSize - pPack->offset;

    if (uRemainingSize < pPack->length) {
        /* The packet is cut into 2 pieces. */
        memcpy(pPacketBuf, (uint8_t*) (pStream->virAddr + pPack->offset), uRemainingSize);
        memcpy(pPacketBuf + uRemainingSize, (uint8_t*) (pStream->virAddr), pPack->length - uRemainingSize);
    } else {
        /* The packet is a complete one. */
        memcpy(pPacketBuf, (uint8_t*) (pStream->virAddr + pPack->offset), pPack->length);
    }

    return 0;
}