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173 lines
5.6 KiB
173 lines
5.6 KiB
15 years ago
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/***************************************************************************
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encoder.cpp - description
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-------------------
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begin : Thu May 05 2005
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copyright : (C) 2005 by Martin Witte
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email : witte@kawo1.rwth-aachen.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "../../src/include/radiostation.h"
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#include "../../src/include/errorlog-interfaces.h"
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#include "../../src/include/aboutwidget.h"
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#include "recording.h"
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#include "recording-configuration.h"
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#include "soundstreamevent.h"
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#include <tqsocketnotifier.h>
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#include <tqevent.h>
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#include <tqapplication.h>
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#include <tqregexp.h>
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#include <tdeconfig.h>
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#include <tdeversion.h>
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#include <tdelocale.h>
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RecordingEncoding::RecordingEncoding(TQObject *parent, SoundStreamID ssid,
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const RecordingConfig &cfg, const RadioStation *rs,
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const TQString &filename)
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:
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m_parent(parent),
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m_config(cfg),
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m_RadioStation(rs ? rs->copy() : NULL),
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m_SoundStreamID(ssid),
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m_error(false),
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m_errorString(TQString()),
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m_done(false),
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m_InputBuffers(m_config.m_EncodeBufferCount < 3 ? 3 : m_config.m_EncodeBufferCount,
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m_config.m_EncodeBufferSize < 4096 ? 4096 : m_config.m_EncodeBufferSize),
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m_buffersMetaData(NULL),
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m_encodedSize(0),
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m_InputStartTime(0),
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m_InputStartPosition(0),
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m_outputURL(filename)
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{
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if (m_config.m_EncodeBufferCount < 3)
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m_config.m_EncodeBufferCount = 3;
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if (m_config.m_EncodeBufferSize < 4096)
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m_config.m_EncodeBufferSize = 4096;
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m_buffersMetaData = new TQPtrList<BufferSoundMetaData> *[m_config.m_EncodeBufferCount];
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for (size_t i = 0; i < m_config.m_EncodeBufferCount; ++i) {
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m_buffersMetaData [i] = new TQPtrList<BufferSoundMetaData>;
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m_buffersMetaData [i]->setAutoDelete(true);
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}
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}
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RecordingEncoding::~RecordingEncoding()
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{
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for (size_t i = 0; i < m_config.m_EncodeBufferCount; ++i) {
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delete m_buffersMetaData[i];
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}
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delete m_buffersMetaData;
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delete m_RadioStation;
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}
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char *RecordingEncoding::lockInputBuffer(size_t &bufferSize)
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{
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if (m_done || m_error)
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return NULL;
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char * retval = m_InputBuffers.lockWriteBuffer(bufferSize);
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m_error |= m_InputBuffers.hasError();
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m_errorString += m_InputBuffers.getErrorString();
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m_InputBuffers.resetError();
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return retval;
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}
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void RecordingEncoding::unlockInputBuffer(size_t bufferSize, const SoundMetaData &md)
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{
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if (m_done)
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return;
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size_t bufidx = m_InputBuffers.getCurrentWriteBufferIdx();
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size_t buffill = m_InputBuffers.getWriteBufferFill();
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m_InputBuffers.unlockWriteBuffer(bufferSize);
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if (!m_InputBuffers.hasError()) {
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if (!m_InputStartTime) {
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m_InputStartTime = md.absoluteTimestamp();
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m_InputStartPosition = md.position();
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}
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BufferSoundMetaData *bmd = new BufferSoundMetaData(
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md.position() - m_InputStartPosition,
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md.absoluteTimestamp() - m_InputStartTime,
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md.absoluteTimestamp(),
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md.url(),
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buffill);
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m_buffersMetaData[bufidx]->append(bmd);
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} else {
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m_error = true;
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m_errorString += m_InputBuffers.getErrorString();
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m_InputBuffers.resetError();
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}
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}
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void RecordingEncoding::setDone()
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{
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m_done = true;
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m_InputBuffers.unlockAllWriteBuffers();
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}
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void RecordingEncoding::run()
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{
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BufferSoundMetaData last_md;
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while (!m_error) {
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char *buffer = NULL;
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size_t buffer_fill = 0;
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if (!m_done) {
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buffer = m_InputBuffers.wait4ReadBuffer(buffer_fill);
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}
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if (!buffer_fill) {
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if (m_done)
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break;
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else
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continue;
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}
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char *export_buffer = NULL;
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size_t export_buffer_size = 0;
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TQ_UINT64 old_pos = m_encodedSize;
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encode(buffer, buffer_fill, export_buffer, export_buffer_size);
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SoundStreamEncodingStepEvent *step_event = NULL;
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if (!m_error) {
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last_md = *m_buffersMetaData[m_InputBuffers.getCurrentReadBufferIdx()]->first();
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SoundMetaData md(old_pos, last_md.relativeTimestamp(), last_md.absoluteTimestamp(), m_outputURL);
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step_event = new SoundStreamEncodingStepEvent(m_SoundStreamID, export_buffer, export_buffer_size, md);
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}
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if (step_event)
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TQApplication::postEvent(m_parent, step_event);
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}
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m_done = true;
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closeOutput();
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SoundMetaData md(m_encodedSize, last_md.relativeTimestamp(), last_md.absoluteTimestamp(), m_outputURL);
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TQApplication::postEvent(m_parent, new SoundStreamEncodingStepEvent(m_SoundStreamID, NULL, 0, md));
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TQApplication::postEvent(m_parent, new SoundStreamEncodingTerminatedEvent(m_SoundStreamID));
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}
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