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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* 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.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#ifndef FFMPEGINVOKER_H_VQD1V1C2
#define FFMPEGINVOKER_H_VQD1V1C2
#include <uscxml/Interpreter.h>
extern "C" {
#include <libavutil/avutil.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
}
#ifdef BUILD_AS_PLUGINS
#include "uscxml/plugins/Plugins.h"
#endif
namespace uscxml {
class FFMPEGInvoker : public InvokerImpl {
public:
FFMPEGInvoker();
virtual ~FFMPEGInvoker();
virtual boost::shared_ptr<InvokerImpl> create(InterpreterImpl* interpreter);
virtual std::list<std::string> getNames() {
std::list<std::string> names;
names.push_back("ffmpeg");
names.push_back("http://uscxml.tk.informatik.tu-darmstadt.de/#ffmpeg");
return names;
}
virtual Data getDataModelVariables();
virtual void send(const SendRequest& req);
virtual void cancel(const std::string sendId);
virtual void invoke(const InvokeRequest& req);
protected:
class EncodingContext {
public:
EncodingContext() :
format(NULL),
formatCtx(NULL),
audioStream(NULL), videoStream(NULL),
audioCodec(NULL), videoCodec(NULL),
audioTime(0), videoTime(0),
frame(NULL),
frame_count(0),
width(0),
height(0),
sws_flags(SWS_BICUBIC),
sws_ctx(NULL) {}
virtual ~EncodingContext() {
if (sws_ctx)
sws_freeContext(sws_ctx);
}
tthread::recursive_mutex mutex;
PixelFormat videoPixFmt;
std::string filename;
AVOutputFormat* format;
AVFormatContext* formatCtx;
AVStream *audioStream, *videoStream;
AVCodec *audioCodec, *videoCodec, *imageCodec;
double audioTime, videoTime;
AVFrame *frame;
AVPicture src_picture, dst_picture;
int frame_count;
size_t width, height;
int sws_flags;
SwsContext *sws_ctx;
std::string extension;
};
AVStream* addStream(EncodingContext* ctx, AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id);
void openVideo(EncodingContext* ctx, AVFormatContext *oc, AVCodec *codec, AVStream *st);
void writeVideoFrame(EncodingContext* ctx, AVFormatContext *oc, AVStream *st, Blob image);
void closeVideo(EncodingContext* ctx, AVFormatContext *oc, AVStream *st);
static void run(void*);
void finish(EncodingContext* ctx, const SendRequest& req);
void process(const SendRequest& req);
std::set<tthread::thread*> _threads;
uscxml::concurrency::BlockingQueue<SendRequest> _workQueue;
bool _isRunning;
std::map<std::string, EncodingContext*> _encoders;
};
#ifdef BUILD_AS_PLUGINS
PLUMA_INHERIT_PROVIDER(FFMPEGInvoker, InvokerImpl);
#endif
}
#endif /* end of include guard: FFMPEGINVOKER_H_VQD1V1C2 */
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