static int
brotli_open(struct stream_encoded *stream, int fd)
{
struct br_enc_data *data = mem_calloc(1, sizeof(*data));
stream->data = NULL;
if (!data) {
return -1;
}
data->fdread = fd;
BrotliStateInit(&data->br_stream);
stream->data = data;
return 0;
}
void QBrotliDecoder::decode()
{
if (m_pInputDevice == nullptr || m_pOutputDevice == nullptr)
{
emit onError("IO devices not set.");
return;
}
if (!m_pInputDevice->isReadable())
{
emit onError("Input not readable.");
return;
}
if (!m_pOutputDevice->isWritable())
{
emit onError("Output not writeable.");
return;
}
BrotliState state;
qint64 totalsize=-1;
if (!m_pInputDevice->isSequential())
totalsize = m_pInputDevice->size();
BrotliStateInit(&state);
int finish = 0;
BrotliResult r;
BrotliInput input = initInput(m_pInputDevice);
BrotliOutput output = initOutput(m_pOutputDevice);
for (;;)
{
r = BrotliDecompressStreaming(input,output,finish,&state);
if (r==0)
{
//error
emit onError("Decoding error.");
break;
}
else if (r==1)
{
//done
break;
}
if (totalsize!=-1)
emit onProgress((double)m_pInputDevice->pos()/(double)totalsize);
if (m_pInputDevice->atEnd())
finish=1;
}
emit onProgress(1.0);
emit onDone();
BrotliStateCleanup(&state);
}
