static int DecodeSync(decoder_t *p_dec, block_t *p_block)
{
decoder_sys_t *p_sys = p_dec->p_sys;
if (!p_block) /* No Drain */
return VLCDEC_SUCCESS;
if (p_block->i_flags & (BLOCK_FLAG_CORRUPTED))
{
block_Release(p_block);
return VLCDEC_SUCCESS;
}
/* Drain the output stream before sending the input packet. */
if (ProcessOutputStream(p_dec, p_sys->output_stream_id))
goto error;
if (ProcessInputStream(p_dec, p_sys->input_stream_id, p_block))
goto error;
block_Release(p_block);
return VLCDEC_SUCCESS;
error:
msg_Err(p_dec, "Error in DecodeSync()");
block_Release(p_block);
return VLCDEC_SUCCESS;
}
static void *DecodeSync(decoder_t *p_dec, block_t **pp_block)
{
decoder_sys_t *p_sys = p_dec->p_sys;
if (!pp_block || !*pp_block)
return NULL;
block_t *p_block = *pp_block;
if (p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY | BLOCK_FLAG_CORRUPTED))
{
block_Release(p_block);
return NULL;
}
/* Drain the output stream before sending the input packet. */
void *result = NULL;
if (ProcessOutputStream(p_dec, p_sys->output_stream_id, &result))
goto error;
if (result)
return result;
if (ProcessInputStream(p_dec, p_sys->input_stream_id, p_block))
goto error;
block_Release(p_block);
*pp_block = NULL;
return NULL;
error:
msg_Err(p_dec, "Error in DecodeSync()");
if (p_block)
block_Release(p_block);
return NULL;
}
static int DecodeAsync(decoder_t *p_dec, block_t *p_block)
{
decoder_sys_t *p_sys = p_dec->p_sys;
HRESULT hr;
if (!p_block) /* No Drain */
return VLCDEC_SUCCESS;
if (p_block->i_flags & (BLOCK_FLAG_CORRUPTED))
{
block_Release(p_block);
return VLCDEC_SUCCESS;
}
/* Dequeue all pending media events. */
while ((hr = DequeueMediaEvent(p_dec)) == S_OK)
continue;
if (hr != MF_E_NO_EVENTS_AVAILABLE && FAILED(hr))
goto error;
/* Drain the output stream of the MFT before sending the input packet. */
if (p_sys->pending_output_events > 0)
{
p_sys->pending_output_events -= 1;
if (ProcessOutputStream(p_dec, p_sys->output_stream_id))
goto error;
}
/* Poll the MFT and return decoded frames until the input stream is ready. */
while (p_sys->pending_input_events == 0)
{
hr = DequeueMediaEvent(p_dec);
if (hr == MF_E_NO_EVENTS_AVAILABLE)
{
/* Sleep for 1 ms to avoid excessive polling. */
Sleep(1);
continue;
}
if (FAILED(hr))
goto error;
if (p_sys->pending_output_events > 0)
{
p_sys->pending_output_events -= 1;
if (ProcessOutputStream(p_dec, p_sys->output_stream_id))
goto error;
break;
}
}
p_sys->pending_input_events -= 1;
if (ProcessInputStream(p_dec, p_sys->input_stream_id, p_block))
goto error;
block_Release(p_block);
return VLCDEC_SUCCESS;
error:
msg_Err(p_dec, "Error in DecodeAsync()");
block_Release(p_block);
return VLCDEC_SUCCESS;
}