sm-ext-Voice/voice_packet.bt.txt

//--------------------------------------
//--- 010 Editor v6.0.3 Binary Template
//
// File:
// Author:
// Revision:
// Purpose:
//--------------------------------------

// CClientAudio::DecompressVoice
local int64 crcLength = FileSize() - sizeof(uint32);

uint64 steamId;

FSeek(crcLength);
uint32 crc;

local int64 crc_calc = Checksum(CHECKSUM_CRC32, 0, crcLength);
if (crc != crc_calc) {
    Warning("CRC mismatch!");
    return;
}

// CVoiceDecoder::ProcessVoicePayload
FSeek(sizeof(uint64));

while (FTell() < crcLength) {
    char payloadType;

    switch (payloadType) {
    default:
        Warning("Unhandled payload!");
        return;
    case 11: // Sample Rate
        short sampleRate;
        break;
    case 10: // Unknown / Unused
        char unk1;
        char unk2;
        break;
    case 1: // Unknown Codec???
    case 2: // Speex Data (Unsupported)
    case 3: // Uncompressed Data
    case 4: // SILK Data
        short dataLength;
        char data[dataLength];
        break;
    case 0: // Silence
        short numSamples;
        break;
    }
}

// CVoiceDecoder::AddIncomingData
FSeek(startof(data));

// VoiceEncoder_SILK::Decompress

// chunkLength == -1 means ResetState

while ((FTell() - startof(data)) < dataLength) {
    struct Chunk {
        short chunkLength;
        if (chunkLength != -1) {
            char chunk[chunkLength];
        }
    } chunk;
}