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/* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef _FFMPEG_CORE_H_
#define _FFMPEG_CORE_H_
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#include <inttypes.h>
#include <string>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavformat/avio.h>
#include <libavutil/avutil.h>
#include <libavutil/mathematics.h>
#include <libavutil/rational.h> // used for av_rescale_q
#include <libswscale/swscale.h>
}
#include "core/util.h"
class PacketQueue {
private:
AVPacketList *_firstListEntry;
AVPacketList *_lastListEntry;
int _packetCount;
Mutex _mutex;
Condition _condition;
int _size;
bool _abortRequest;
public:
PacketQueue();
~PacketQueue();
int put(AVPacket *packet);
int putStatus(int statusFlag, void *statusInfo);
void freeStatusInfo(AVPacket *packet);
void* getStatusInfo(AVPacket *packet);
int get(AVPacket *packet, bool blocking);
int getSize();
void flush();
void abort();
bool isAborted();
};
extern const uint8_t* STATUS_PACKET;
enum {
PKT_STATUS_FLAG_EOF = 1, // signal end-of-file
PKT_STATUS_FLAG_FLUSH, // request the decoder to flush its avcodec decode buffers
PKT_STATUS_FLAG_ERROR, // signal an error state
PKT_STATUS_FLAG_EMPTY // request the decoder to output empty data (silence or black frames)
};
class MediaCore_FFmpeg;
// Note: singleton pattern does not work here as static vars
// are initialized before the plugin itself is initialized.
extern MediaCore_FFmpeg *ffmpegCore;
class MediaCore_FFmpeg {
private:
URLProtocol utf8FileProtocol;
Mutex _codecLock;
std::string hexVerToStr(unsigned version);
void checkVersions();
void registerUTF8FileProtocol();
public:
MediaCore_FFmpeg();
~MediaCore_FFmpeg();
std::string getErrorString(int errorNum) const;
bool findStreamIDs(AVFormatContext *formatCtx, int *firstVideoStream, int *firstAudioStream) const;
int findAudioStreamIndex(AVFormatContext *formatCtx) const;
bool convertFFmpegToAudioFormat(SampleFormat ffmpegFormat, audioSampleFormat_t *format) const;
public:
class AVCodecLock {
public:
AVCodecLock() {
ffmpegCore->_codecLock.lock();
}
~AVCodecLock() {
ffmpegCore->_codecLock.unlock();
}
};
};
// FFmpeg compatibility with older versions
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(52,64,0)
#define AVMEDIA_TYPE_VIDEO CODEC_TYPE_VIDEO
#define AVMEDIA_TYPE_AUDIO CODEC_TYPE_AUDIO
#endif
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(52,26,0)
#define avcodec_decode_video2(avctx, picture, got_picture_ptr, avpkt) \
avcodec_decode_video((avctx), (picture), (got_picture_ptr), \
(avpkt)->data, (avpkt)->size)
#endif
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(51,30,0)
#define avcodec_decode_audio3(avctx, samples, frame_size_ptr, avpkt) \
avcodec_decode_audio((avctx), (samples), (frame_size_ptr), \
(avpkt)->data, (avpkt)->size)
#elif LIBAVCODEC_VERSION_INT < AV_VERSION_INT(52,26,0)
#define avcodec_decode_audio3(avctx, samples, frame_size_ptr, avpkt) \
avcodec_decode_audio2((avctx), (samples), (frame_size_ptr), \
(avpkt)->data, (avpkt)->size)
#endif
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(52,69,0)
#define av_register_protocol2(prot, size) \
av_register_protocol(prot)
#endif
#endif /* _FFMPEG_CORE_H_ */
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