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/*******************************************************************************
* Goggles Audio Player Library *
********************************************************************************
* Copyright (C) 2010-2021 by Sander Jansen. All Rights Reserved *
* --- *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see http://www.gnu.org/licenses. *
********************************************************************************/
#include "ap_defs.h"
#include "ap_utils.h"
#include "ap_event_private.h"
#include "ap_engine.h"
#include "ap_input_thread.h"
#include "ap_output_thread.h"
#include "ap_decoder_plugin.h"
#include "ap_decoder_thread.h"
namespace ap {
DecoderThread::DecoderThread(AudioEngine*e) : EngineThread(e) {
}
DecoderThread::~DecoderThread() {
}
FXbool DecoderThread::init() {
if (!EngineThread::init())
return false;
if (!packetpool.init(8192,40))
return false;
return true;
}
void DecoderThread::free() {
packetpool.free();
EngineThread::free();
}
void DecoderThread::configure(ConfigureEvent * event) {
if (plugin) {
if (plugin->codec() == event->codec) {
plugin->init(event);
goto forward;
}
delete plugin;
plugin=nullptr;
}
plugin = DecoderPlugin::open(this,event->codec);
if (plugin) {
plugin->init(event);
}
else {
engine->input->post(new ControlEvent(Ctrl_Close));
engine->post(new ErrorMessage(FXString::value("No decoder available for %s.",Codec::name(event->codec))));
event->unref();
return;
}
forward:
/// Forward to output
if (!event->af.undefined()) {
engine->output->post(event);
}
else {
event->unref();
}
}
FXint DecoderThread::run(){
Event * event=nullptr;
ap_set_thread_name("ap_decoder");
for(;;) {
event = fifo.wait();
switch(event->type) {
case Flush : GM_DEBUG_PRINT("[decoder] flush\n");
if (plugin) {
FlushEvent * f = static_cast<FlushEvent*>(event);
plugin->flush(f->offset);
}
engine->output->post(event,EventQueue::Flush);
continue;
break;
case Ctrl_Quit: GM_DEBUG_PRINT("[decoder] quit\n");
if (plugin) {
delete plugin;
plugin=nullptr;
}
/// forward to output thread
engine->output->post(event,EventQueue::Flush);
return 0;
break;
case Configure: configure(static_cast<ConfigureEvent*>(event));
continue;
break;
case End :
case Meta : if (plugin) {
engine->output->post(event);
continue;
}
break;
case Buffer : if (plugin) {
stream=event->stream;
if (plugin->process(dynamic_cast<Packet*>(event))==false) {
delete plugin;
plugin=nullptr;
GM_DEBUG_PRINT("[decoder] fatal error");
engine->input->post(new ControlEvent(Ctrl_Close));
engine->post(new ErrorMessage("Fatal decoder error"));
}
continue;
}
break;
}
Event::unref(event);
}
return 0;
}
Packet * DecoderThread::get_input_packet() {
return dynamic_cast<Packet*>(fifo.wait_for(Buffer));
}
Packet * DecoderThread::get_output_packet() {
do {
// Bail out if there's a non-buffer event
if (fifo.peek_if_not(Buffer))
return nullptr;
// Wait for output packet
Packet * packet = packetpool.wait(fifo.signal());
if (packet) {
packet->stream=stream;
return packet;
}
}
while(1);
}
void DecoderThread::post_output_packet(Packet *& packet,FXbool eos/*=false*/) {
if (__likely(packet)) {
if (packet->numFrames())
engine->output->post(packet);
else
packet->unref();
packet = nullptr;
}
if (eos) {
engine->output->post(new ControlEvent(End,stream));
}
}
void DecoderThread::post_configuration(ConfigureEvent * event) {
engine->output->post(event);
}
}
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