Tue Aug 13 01:31:08 PDT 2013

4 files changed, 657 insertions, 0 deletions

diff --git a/community/performous/PKGBUILD b/community/performous/PKGBUILD
new file mode 100644
index 000000000..5145f5624
--- /dev/null
+++ b/community/performous/PKGBUILD
@@ -0,0 +1,51 @@
+# $Id: PKGBUILD 94902 2013-08-01 06:55:27Z bpiotrowski $
+# Maintainer : Laurent Carlier <lordheavym@gmail.com>
+# Contributor: Christoph Zeiler <archNOSPAM_at_moonblade.dot.org>
+
+pkgname=performous
+pkgver=0.7.0
+pkgrel=10
+pkgdesc='A free game like "Singstar", "Rockband" or "Stepmania"'
+arch=('i686' 'x86_64')
+url="http://performous.org/"
+license=('GPL')
+depends=('boost-libs' 'imagemagick' 'glew' 'libxml++' 'portaudio' 'portmidi' 'librsvg' 'ffmpeg') # opencv
+makedepends=('cmake' 'pkgconfig' 'help2man' 'boost' 'mesa')
+optdepends=('performous-freesongs: free songs for performous')
+source=(http://sourceforge.net/projects/$pkgname/files/$pkgname/$pkgver/performous-$pkgver.tar.bz2
+        performous-0.7.0-cmake.patch
+	fix-noisy-sound-output.patch
+	ffmpeg-2.0.patch)
+md5sums=('60f3f72b51a630a4aa996484aedb9526'
+         '7da8aef3f4dd28e19f95957ae9ac2bb1'
+         '820dc6d1a91c23f0ef56e2cd1759afb6'
+         '9f781162b6ebc77b68caa05e2941c527')
+
+prepare() {
+  cd performous-${pkgver}
+
+  # patch from gentoo
+  patch -Np0 -i ../performous-0.7.0-cmake.patch
+  # fix FS#33948 (merged upstream)
+  patch -Np1 -i ../fix-noisy-sound-output.patch
+  # fix building with ffmpeg-2.0
+  patch -Np1 -i ../ffmpeg-2.0.patch
+}
+
+build() {
+  cd performous-${pkgver}
+
+  mkdir -p build
+  cd build
+
+  cmake -DCMAKE_BUILD_TYPE=Release \
+	-DCMAKE_INSTALL_PREFIX=/usr ..
+
+  make
+}
+
+package() {
+  cd performous-${pkgver}/build
+
+  make DESTDIR="$pkgdir" install
+}
diff --git a/community/performous/ffmpeg-2.0.patch b/community/performous/ffmpeg-2.0.patch
new file mode 100644
index 000000000..26819dd9b
--- /dev/null
+++ b/community/performous/ffmpeg-2.0.patch
@@ -0,0 +1,11 @@
+diff -ru performous-0.7.0/game/ffmpeg.cc performous-0.7.0a/game/ffmpeg.cc
+--- performous-0.7.0/game/ffmpeg.cc	2012-11-12 23:14:08.000000000 +0100
++++ performous-0.7.0a/game/ffmpeg.cc	2013-07-17 10:28:11.284467081 +0200
+@@ -17,6 +17,7 @@
+ #endif
+ 
+ #define AUDIO_CHANNELS 2
++#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000
+ 
+ /*static*/ boost::mutex FFmpeg::s_avcodec_mutex;
+ 
diff --git a/community/performous/fix-noisy-sound-output.patch b/community/performous/fix-noisy-sound-output.patch
new file mode 100644
index 000000000..e4ba0c246
--- /dev/null
+++ b/community/performous/fix-noisy-sound-output.patch
@@ -0,0 +1,440 @@
+diff -ur performous-0.7.0/game/audio.cc performous-0.7.0b/game/audio.cc
+--- performous-0.7.0/game/audio.cc	2012-11-12 23:14:08.000000000 +0100
++++ performous-0.7.0b/game/audio.cc	2013-05-23 19:38:26.568498744 +0200
+@@ -140,7 +140,8 @@
+ 		FFmpeg mpeg;
+ 		float fadeLevel;
+ 		float pitchFactor;
+-		Track(std::string const& filename, unsigned int sr): mpeg(false, true, filename, sr), fadeLevel(1.0f), pitchFactor(0.0f) {}
++		//Track(std::string const& filename, unsigned int sr): mpeg(false, true, filename, sr), fadeLevel(1.0f), pitchFactor(0.0f) {}
++		Track(std::string const& filename, unsigned int sr): mpeg(filename, sr), fadeLevel(1.0f), pitchFactor(0.0f) {}
+ 	};
+ 	typedef boost::ptr_map<std::string, Track> Tracks;
+ 	Tracks tracks; ///< Audio decoders
+@@ -241,7 +242,8 @@
+ 	FFmpeg mpeg;
+ 	bool eof;
+   public:
+-	Sample(std::string const& filename, unsigned sr) : srate(sr), m_pos(), mpeg(false, true, filename, sr), eof(true) { }
++	//Sample(std::string const& filename, unsigned sr) : srate(sr), m_pos(), mpeg(false, true, filename, sr), eof(true) { }
++	Sample(std::string const& filename, unsigned sr) : m_pos(), mpeg(filename, sr), eof(true) { }
+ 	void operator()(float* begin, float* end) {
+ 		if(eof) {
+ 			// No more data to play in this sample
+diff -ur performous-0.7.0/game/ffmpeg.cc performous-0.7.0b/game/ffmpeg.cc
+--- performous-0.7.0/game/ffmpeg.cc	2012-11-12 23:14:08.000000000 +0100
++++ performous-0.7.0b/game/ffmpeg.cc	2013-05-23 21:41:09.057986491 +0200
+@@ -3,6 +3,7 @@
+ #include "config.hh"
+ #include "util.hh"
+ #include "xtime.hh"
++#include <boost/smart_ptr/shared_ptr.hpp>
+ #include <iostream>
+ #include <stdexcept>
+ 
+@@ -20,15 +21,20 @@
+ 
+ /*static*/ boost::mutex FFmpeg::s_avcodec_mutex;
+ 
+-FFmpeg::FFmpeg(bool decodeVideo, bool decodeAudio, std::string const& _filename, unsigned int rate):
+-  width(), height(), m_filename(_filename), m_rate(rate), m_quit(), m_running(), m_eof(),
+-  m_seekTarget(getNaN()), m_position(), m_streamId(-1), m_mediaType(),
+-  m_formatContext(), m_codecContext(), m_codec(), m_resampleContext(), m_swsContext(),
++//FFmpeg::FFmpeg(bool decodeVideo, bool decodeAudio, std::string const& _filename, unsigned int rate):
++//  width(), height(), m_filename(_filename), m_rate(rate), m_quit(), m_running(), m_eof(),
++// m_seekTarget(getNaN()), m_position(), m_streamId(-1), m_mediaType(),
++//  m_formatContext(), m_codecContext(), m_codec(), m_resampleContext(), m_swsContext(),
++FFmpeg::FFmpeg(std::string const& _filename, unsigned int rate):
++  width(), height(), m_filename(_filename), m_rate(rate), m_quit(),
++  m_seekTarget(getNaN()), m_position(), m_duration(), m_streamId(-1),
++  m_mediaType(rate ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO),
++  m_formatContext(), m_codecContext(), m_resampleContext(), m_swsContext(),
+   m_thread(new boost::thread(boost::ref(*this)))
+ {
+-	if (decodeVideo) m_mediaType = AVMEDIA_TYPE_VIDEO;
+-	else if (decodeAudio) m_mediaType = AVMEDIA_TYPE_AUDIO;
+-	else throw std::logic_error("Can only decode one track");
++//	if (decodeVideo) m_mediaType = AVMEDIA_TYPE_VIDEO;
++//	else if (decodeAudio) m_mediaType = AVMEDIA_TYPE_AUDIO;
++//	else throw std::logic_error("Can only decode one track");
+ }
+ 
+ FFmpeg::~FFmpeg() {
+@@ -36,20 +42,20 @@
+ 	videoQueue.reset();
+ 	audioQueue.quit();
+ 	m_thread->join();
+-	// TODO: use RAII for freeing resources (to prevent memory leaks)
+-	boost::mutex::scoped_lock l(s_avcodec_mutex); // avcodec_close is not thread-safe
+-	if (m_resampleContext) audio_resample_close(m_resampleContext);
+-	if (m_codecContext) avcodec_close(m_codecContext);
+-#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(53, 17, 0)
+-	if (m_formatContext) avformat_close_input(&m_formatContext);
+-#else
+-	if (m_formatContext) av_close_input_file(m_formatContext);
+-#endif
+-}
+-
+-double FFmpeg::duration() const {
+-	double d = m_running ? m_formatContext->duration / double(AV_TIME_BASE) : getNaN();
+-	return d >= 0.0 ? d : getInf();
++// 	// TODO: use RAII for freeing resources (to prevent memory leaks)
++// 	boost::mutex::scoped_lock l(s_avcodec_mutex); // avcodec_close is not thread-safe
++// 	if (m_resampleContext) audio_resample_close(m_resampleContext);
++// 	if (m_codecContext) avcodec_close(m_codecContext);
++// #if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(53, 17, 0)
++// 	if (m_formatContext) avformat_close_input(&m_formatContext);
++// #else
++// 	if (m_formatContext) av_close_input_file(m_formatContext);
++// #endif
++// }
++// 
++// double FFmpeg::duration() const {
++// 	double d = m_running ? m_formatContext->duration / double(AV_TIME_BASE) : getNaN();
++// 	return d >= 0.0 ? d : getInf();
+ }
+ 
+ void FFmpeg::open() {
+@@ -60,11 +66,14 @@
+ 	if (avformat_find_stream_info(m_formatContext, NULL) < 0) throw std::runtime_error("Cannot find stream information");
+ 	m_formatContext->flags |= AVFMT_FLAG_GENPTS;
+ 	// Find a track and open the codec
+-	m_streamId = av_find_best_stream(m_formatContext, (AVMediaType)m_mediaType, -1, -1, &m_codec, 0);
++//	m_streamId = av_find_best_stream(m_formatContext, (AVMediaType)m_mediaType, -1, -1, &m_codec, 0);
++	AVCodec* codec = NULL;
++	m_streamId = av_find_best_stream(m_formatContext, (AVMediaType)m_mediaType, -1, -1, &codec, 0);
+ 	if (m_streamId < 0) throw std::runtime_error("No suitable track found");
+ 
+ 	AVCodecContext* cc = m_formatContext->streams[m_streamId]->codec;
+-	if (avcodec_open2(cc, m_codec, NULL) < 0) throw std::runtime_error("Cannot open audio codec");
++//	if (avcodec_open2(cc, m_codec, NULL) < 0) throw std::runtime_error("Cannot open audio codec");
++	if (avcodec_open2(cc, codec, NULL) < 0) throw std::runtime_error("Cannot open codec");
+ 	cc->workaround_bugs = FF_BUG_AUTODETECT;
+ 	m_codecContext = cc;
+ 
+@@ -90,18 +99,20 @@
+ 
+ void FFmpeg::operator()() {
+ 	try { open(); } catch (std::exception const& e) { std::clog << "ffmpeg/error: Failed to open " << m_filename << ": " << e.what() << std::endl; m_quit = true; return; }
+-	m_running = true;
+-	audioQueue.setDuration(duration());
++//	m_running = true;
++//	audioQueue.setDuration(duration());
++	m_duration = m_formatContext->duration / double(AV_TIME_BASE);
++	audioQueue.setDuration(m_duration);
+ 	int errors = 0;
+ 	while (!m_quit) {
+ 		try {
+ 			if (audioQueue.wantSeek()) m_seekTarget = 0.0;
+ 			if (m_seekTarget == m_seekTarget) seek_internal();
+ 			decodePacket();
+-			m_eof = false;
++//			m_eof = false;
+ 			errors = 0;
+ 		} catch (eof_error&) {
+-			m_eof = true;
++//			m_eof = true;
+ 			videoQueue.push(new VideoFrame()); // EOF marker
+ 			boost::thread::sleep(now() + 0.1);
+ 		} catch (std::exception& e) {
+@@ -109,10 +120,19 @@
+ 			if (++errors > 2) { std::clog << "ffmpeg/error: FFMPEG terminating due to multiple errors" << std::endl; m_quit = true; }
+ 		}
+ 	}
+-	m_running = false;
+-	m_eof = true;
++//	m_running = false;
++//	m_eof = true;
+ 	audioQueue.setEof();
+ 	videoQueue.push(new VideoFrame()); // EOF marker
++	// TODO: use RAII for freeing resources (to prevent memory leaks)
++	boost::mutex::scoped_lock l(s_avcodec_mutex); // avcodec_close is not thread-safe
++	if (m_resampleContext) audio_resample_close(m_resampleContext);
++	if (m_codecContext) avcodec_close(m_codecContext);
++#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(53, 17, 0)
++	if (m_formatContext) avformat_close_input(&m_formatContext);
++#else
++	if (m_formatContext) av_close_input_file(m_formatContext);
++#endif
+ }
+ 
+ void FFmpeg::seek(double time, bool wait) {
+@@ -125,7 +145,8 @@
+ 	videoQueue.reset();
+ 	audioQueue.reset();
+ 	int flags = 0;
+-	if (m_seekTarget < position()) flags |= AVSEEK_FLAG_BACKWARD;
++//	if (m_seekTarget < position()) flags |= AVSEEK_FLAG_BACKWARD;
++	if (m_seekTarget < m_position) flags |= AVSEEK_FLAG_BACKWARD;
+ 	av_seek_frame(m_formatContext, -1, m_seekTarget * AV_TIME_BASE, flags);
+ 	m_seekTarget = getNaN(); // Signal that seeking is done
+ }
+@@ -139,16 +160,16 @@
+ 		~ReadFramePacket() { av_free_packet(this); }
+ 	};
+ 
+-	struct AVFrameWrapper {
+-		AVFrame* m_frame;
+-		AVFrameWrapper(): m_frame(avcodec_alloc_frame()) {
+-			if (!m_frame) throw std::runtime_error("Unable to allocate AVFrame");
+-		}
+-		~AVFrameWrapper() { av_free(m_frame); }
+-		operator AVFrame*() { return m_frame; }
+-		AVFrame* operator->() { return m_frame; }
+-	};
+-
++// 	struct AVFrameWrapper {
++// 		AVFrame* m_frame;
++// 		AVFrameWrapper(): m_frame(avcodec_alloc_frame()) {
++// 			if (!m_frame) throw std::runtime_error("Unable to allocate AVFrame");
++// 		}
++// 		~AVFrameWrapper() { av_free(m_frame); }
++// 		operator AVFrame*() { return m_frame; }
++// 		AVFrame* operator->() { return m_frame; }
++// 	};
++// 
+ 	// Read an AVPacket and decode it into AVFrames
+ 	ReadFramePacket packet(m_formatContext);
+ 	int packetSize = packet.size;
+@@ -156,19 +177,27 @@
+ 		if (packetSize < 0) throw std::logic_error("negative packet size?!");
+ 		if (m_quit || m_seekTarget == m_seekTarget) return;
+ 		if (packet.stream_index != m_streamId) return;
+-		AVFrameWrapper frame;
++//		AVFrameWrapper frame;
++		boost::shared_ptr<AVFrame> frame(avcodec_alloc_frame(), &av_free);
+ 		int frameFinished = 0;
+ 		int decodeSize = (m_mediaType == AVMEDIA_TYPE_VIDEO ?
+-		  avcodec_decode_video2(m_codecContext, frame, &frameFinished, &packet) :
+-		  avcodec_decode_audio4(m_codecContext, frame, &frameFinished, &packet));
+-		if (decodeSize < 0) throw std::runtime_error("cannot decode avframe");
++// 		  avcodec_decode_video2(m_codecContext, frame, &frameFinished, &packet) :
++// 		  avcodec_decode_audio4(m_codecContext, frame, &frameFinished, &packet));
++// 		if (decodeSize < 0) throw std::runtime_error("cannot decode avframe");
++		  avcodec_decode_video2(m_codecContext, frame.get(), &frameFinished, &packet) :
++		  avcodec_decode_audio4(m_codecContext, frame.get(), &frameFinished, &packet));
++		if (decodeSize < 0) return; // Packet didn't produce any output (could be waiting for B frames or something)
+ 		packetSize -= decodeSize; // Move forward within the packet
+ 		if (!frameFinished) continue;
+ 		// Update current position if timecode is available
+-		if (frame->pkt_pts != uint64_t(AV_NOPTS_VALUE)) {
+-			m_position = double(frame->pkt_pts) * av_q2d(m_formatContext->streams[m_streamId]->time_base);
+-		}
+-		if (m_mediaType == AVMEDIA_TYPE_VIDEO) processVideo(frame); else processAudio(frame);
++//		if (frame->pkt_pts != uint64_t(AV_NOPTS_VALUE)) {
++		if (int64_t(frame->pkt_pts) != int64_t(AV_NOPTS_VALUE)) {
++//			m_position = double(frame->pkt_pts) * av_q2d(m_formatContext->streams[m_streamId]->time_base);
++			m_position = double(frame->pkt_pts) * av_q2d(m_formatContext->streams[m_streamId]->time_base)
++			  - double(m_formatContext->start_time) / AV_TIME_BASE;
++ 		}
++//		if (m_mediaType == AVMEDIA_TYPE_VIDEO) processVideo(frame); else processAudio(frame);
++		if (m_mediaType == AVMEDIA_TYPE_VIDEO) processVideo(frame.get()); else processAudio(frame.get());
+ 	}
+ }
+ 
+@@ -189,9 +218,29 @@
+ }
+ 
+ void FFmpeg::processAudio(AVFrame* frame) {
++	void* data = frame->data[0];
++	// New FFmpeg versions use non-interleaved audio decoding and samples may be in float format.
++	// Do a conversion here, allowing us to use the old (deprecated) avcodec audio_resample().
++	std::vector<int16_t> input;
++	unsigned inFrames = frame->nb_samples;
++	if (frame->data[1]) {
++		unsigned channels = m_codecContext->channels;
++		input.reserve(channels * inFrames);
++		for (unsigned i = 0; i < inFrames; ++i) {
++			for (unsigned ch = 0; ch < channels; ++ch) {
++				data = frame->data[ch];
++				input.push_back(m_codecContext->sample_fmt == AV_SAMPLE_FMT_FLTP ?
++				  da::conv_to_s16(reinterpret_cast<float*>(data)[i]) :
++				  reinterpret_cast<int16_t*>(data)[i]
++				);
++			}
++		}
++		data = &input[0];
++	}
+ 	// Resample to output sample rate, then push to audio queue and increment timecode
+ 	std::vector<int16_t> resampled(AVCODEC_MAX_AUDIO_FRAME_SIZE);
+-	int frames = audio_resample(m_resampleContext, &resampled[0], (short*)frame->data[0], frame->nb_samples);
++//	int frames = audio_resample(m_resampleContext, &resampled[0], (short*)frame->data[0], frame->nb_samples);
++	int frames = audio_resample(m_resampleContext, &resampled[0], reinterpret_cast<short*>(data), inFrames);
+ 	resampled.resize(frames * AUDIO_CHANNELS);
+ 	audioQueue.push(resampled, m_position);  // May block
+ 	m_position += double(frames)/m_formatContext->streams[m_streamId]->codec->sample_rate;
+diff -ur performous-0.7.0/game/ffmpeg.hh performous-0.7.0b/game/ffmpeg.hh
+--- performous-0.7.0/game/ffmpeg.hh	2012-11-12 23:14:08.000000000 +0100
++++ performous-0.7.0b/game/ffmpeg.hh	2013-05-23 20:42:22.868566247 +0200
+@@ -3,7 +3,8 @@
+ #include "util.hh"
+ #include "libda/sample.hpp"
+ #include <boost/circular_buffer.hpp>
+-#include <boost/ptr_container/ptr_set.hpp>
++//#include <boost/ptr_container/ptr_set.hpp>
++#include <boost/ptr_container/ptr_deque.hpp>
+ #include <boost/scoped_ptr.hpp>
+ #include <boost/thread/condition.hpp>
+ #include <boost/thread/mutex.hpp>
+@@ -47,25 +48,29 @@
+ 	}
+ };
+ 
+-static bool operator<(VideoFrame const& a, VideoFrame const& b) {
+-	return a.timestamp < b.timestamp;
+-}
++// static bool operator<(VideoFrame const& a, VideoFrame const& b) {
++// 	return a.timestamp < b.timestamp;
++// }
+ 
+ /// video queue: first in first out
+ class VideoFifo {
+   public:
+-	VideoFifo(): m_available(), m_timestamp(), m_eof() {}
++// 	VideoFifo(): m_available(), m_timestamp(), m_eof() {}
++	VideoFifo(): m_timestamp(), m_eof() {}
+ 	/// trys to pop a VideoFrame from queue
+ 	bool tryPop(VideoFrame& f) {
+ 		boost::mutex::scoped_lock l(m_mutex);
+-		if (!m_queue.empty() && m_queue.begin()->data.empty()) { m_eof = true; return false; }
+-		statsUpdate();
+-		if (m_available == 0) return false; // Nothing to deliver
++// 		if (!m_queue.empty() && m_queue.begin()->data.empty()) { m_eof = true; return false; }
++// 		statsUpdate();
++// 		if (m_available == 0) return false; // Nothing to deliver
++		if (m_queue.empty()) return false; // Nothing to deliver
++		if (m_queue.begin()->data.empty()) { m_eof = true; return false; }
+ 		f.swap(*m_queue.begin());
+-		m_queue.erase(m_queue.begin());
++// 		m_queue.erase(m_queue.begin());
++		m_queue.pop_front();
+ 		m_cond.notify_all();
+ 		m_timestamp = f.timestamp;
+-		statsUpdate();
++// 		statsUpdate();
+ 		return true;
+ 	}
+ 	/// pushes VideoFrames to queue
+@@ -73,38 +78,41 @@
+ 		boost::mutex::scoped_lock l(m_mutex);
+ 		while (m_queue.size() > m_max) m_cond.wait(l);
+ 		if (m_queue.empty()) m_timestamp = f->timestamp;
+-		m_queue.insert(f);
+-		statsUpdate();
+-	}
+-	/// updates stats
+-	void statsUpdate() {
+-		m_available = std::max(0, int(m_queue.size()) - int(m_min));
+-		if (m_available == 0 && !m_queue.empty() && m_queue.rbegin()->data.empty()) m_available = m_queue.size() - 1;
++// 		m_queue.insert(f);
++// 		statsUpdate();
++// 	}
++// 	/// updates stats
++// 	void statsUpdate() {
++// 		m_available = std::max(0, int(m_queue.size()) - int(m_min));
++// 		if (m_available == 0 && !m_queue.empty() && m_queue.rbegin()->data.empty()) m_available = m_queue.size() - 1;
++		m_queue.push_back(f);
+ 	}
+ 	/// resets video queue
+ 	void reset() {
+ 		boost::mutex::scoped_lock l(m_mutex);
+ 		m_queue.clear();
+ 		m_cond.notify_all();
+-		statsUpdate();
++// 		statsUpdate();
+ 		m_eof = false;
+ 	}
+ 	/// returns current position
+ 	double position() const { return m_timestamp; }
+-	/// returns m_available / m_max
+-	double percentage() const { return double(m_available) / m_max; }
++// 	/// returns m_available / m_max
++// 	double percentage() const { return double(m_available) / m_max; }
+ 	/// simple eof check
+ 	double eof() const { return m_eof; }
+ 
+   private:
+-	boost::ptr_set<VideoFrame> m_queue;
++// 	boost::ptr_set<VideoFrame> m_queue;
++	boost::ptr_deque<VideoFrame> m_queue;
+ 	mutable boost::mutex m_mutex;
+ 	boost::condition m_cond;
+-	volatile unsigned m_available;
++// 	volatile unsigned m_available;
+ 	double m_timestamp;
+ 	bool m_eof;
+-	static const unsigned m_min = 16; // H.264 may have 16 consecutive B frames
+-	static const unsigned m_max = 50;
++// 	static const unsigned m_min = 16; // H.264 may have 16 consecutive B frames
++// 	static const unsigned m_max = 50;
++	static const unsigned m_max = 20;
+ };
+ 
+ class AudioBuffer {
+@@ -195,7 +203,7 @@
+ 
+ // ffmpeg forward declarations
+ extern "C" {
+-  struct AVCodec;
++//   struct AVCodec;
+   struct AVCodecContext;
+   struct AVFormatContext;
+   struct AVFrame;
+@@ -206,8 +214,10 @@
+ /// ffmpeg class
+ class FFmpeg {
+   public:
+-	/// constructor
+-	FFmpeg(bool decodeVideo, bool decodeAudio, std::string const& file, unsigned int rate = 48000);
++// 	/// constructor
++// 	FFmpeg(bool decodeVideo, bool decodeAudio, std::string const& file, unsigned int rate = 48000);
++	/// Decode file; if no rate is specified, decode video, otherwise decode audio.
++	FFmpeg(std::string const& file, unsigned int rate = 0);
+ 	~FFmpeg();
+ 	void operator()(); ///< Thread runs here, don't call directly
+ 	unsigned width, ///< width of video
+@@ -220,8 +230,8 @@
+ 	void seek(double time, bool wait = true);
+ 	/// duration
+ 	double duration() const;
+-	/// return current position
+-	double position() { return videoQueue.position(); /* FIXME: remove */ }
++// 	/// return current position
++// 	double position() { return videoQueue.position(); /* FIXME: remove */ }
+ 	bool terminating() const { return m_quit; }
+ 
+ 	class eof_error: public std::exception {};
+@@ -234,16 +244,17 @@
+ 	std::string m_filename;
+ 	unsigned int m_rate;
+ 	volatile bool m_quit;
+-	volatile bool m_running;
+-	volatile bool m_eof;
++// 	volatile bool m_running;
++// 	volatile bool m_eof;
+ 	volatile double m_seekTarget;
+ 	double m_position;
++	double m_duration;
+ 	// libav-specific variables
+ 	int m_streamId;
+ 	int m_mediaType;  // enum AVMediaType
+ 	AVFormatContext* m_formatContext;
+ 	AVCodecContext* m_codecContext;
+-	AVCodec* m_codec;
++// 	AVCodec* m_codec;
+ 	ReSampleContext* m_resampleContext;
+ 	SwsContext* m_swsContext;
+ 	// Make sure the thread starts only after initializing everything else
+diff -ur performous-0.7.0/game/video.cc performous-0.7.0b/game/video.cc
+--- performous-0.7.0/game/video.cc	2012-11-12 23:14:08.000000000 +0100
++++ performous-0.7.0b/game/video.cc	2013-05-23 20:33:30.612096870 +0200
+@@ -3,7 +3,8 @@
+ #include "util.hh"
+ #include <cmath>
+ 
+-Video::Video(std::string const& _videoFile, double videoGap): m_mpeg(true, false, _videoFile), m_videoGap(videoGap), m_surfaceTime(), m_lastTime(), m_alpha(-0.5, 1.5) {}
++// Video::Video(std::string const& _videoFile, double videoGap): m_mpeg(true, false, _videoFile), m_videoGap(videoGap), m_surfaceTime(), m_lastTime(), m_alpha(-0.5, 1.5) {}
++Video::Video(std::string const& _videoFile, double videoGap): m_mpeg(_videoFile), m_videoGap(videoGap), m_surfaceTime(), m_lastTime(), m_alpha(-0.5, 1.5) {}
+ 
+ void Video::prepare(double time) {
+ 	time += m_videoGap;
diff --git a/community/performous/performous-0.7.0-cmake.patch b/community/performous/performous-0.7.0-cmake.patch
new file mode 100644
index 000000000..4c6f47b63
--- /dev/null
+++ b/community/performous/performous-0.7.0-cmake.patch
@@ -0,0 +1,155 @@
+From: Julian Ospald <hasufell@gentoo.org>
+Date: Thu Jan 24 13:13:50 UTC 2013
+Subject: build system
+
+	- fix opencv module to prefer pkg-config results
+	- fix some module and macro names and try to use
+	system modules as much as possible (ALSA Boost Gettext Jpeg Png Tiff Z)
+
+--- cmake/Modules/FindOpenCV.cmake
++++ cmake/Modules/FindOpenCV.cmake
+@@ -57,13 +57,21 @@
+     include(FindPkgConfig)
+     if(PKG_CONFIG_FOUND)
+       pkg_check_modules(OPENCV_PKGCONF opencv)
+-      set(OpenCV_DIR ${OPENCV_PKGCONF_PREFIX})
+-      if(EXISTS "${OpenCV_DIR}")
+-	set(OpenCV_configScript_DIR "${OpenCV_DIR}/share/opencv")
+-	if(EXISTS "${OpenCV_configScript_DIR}")
+-	  set(OpenCV_configScript "${OpenCV_configScript_DIR}/OpenCVConfig.cmake")
+-	endif(EXISTS "${OpenCV_configScript_DIR}")
+-      endif(EXISTS "${OpenCV_DIR}")
++      # prefer pkg-config values
++      if(OPENCV_PKGCONF_FOUND)
++        set(OpenCV_LIBS ${OPENCV_PKGCONF_LDFLAGS})
++	set(OpenCV_FOUND true)
++	set(OpenCV_INCLUDE_DIR ${OPENCV_PKGCONF_INCLUDE_DIRS})
++	set(OpenCV_VERSION ${OPENCV_PKGCONF_VERSION})
++      else(OPENCV_PKGCONF_FOUND)
++        set(OpenCV_DIR ${OPENCV_PKGCONF_PREFIX})
++        if(EXISTS "${OpenCV_DIR}")
++  	  set(OpenCV_configScript_DIR "${OpenCV_DIR}/share/opencv")
++	  if(EXISTS "${OpenCV_configScript_DIR}")
++	    set(OpenCV_configScript "${OpenCV_configScript_DIR}/OpenCVConfig.cmake")
++	  endif(EXISTS "${OpenCV_configScript_DIR}")
++        endif(EXISTS "${OpenCV_DIR}")
++      endif(OPENCV_PKGCONF_FOUND)
+     endif(PKG_CONFIG_FOUND)
+   endif(NOT WIN32)
+ endif(NOT EXISTS "${OpenCV_DIR}")
+@@ -72,7 +80,7 @@
+ ##====================================================
+ ## Find OpenCV libraries
+ ##----------------------------------------------------
+-if(EXISTS "${OpenCV_DIR}")
++if(EXISTS "${OpenCV_DIR}" AND NOT OpenCV_FOUND)
+ 
+   #When its possible to use the Config script use it.
+   if(EXISTS "${OpenCV_configScript}")
+@@ -257,9 +265,9 @@
+   endif(${OpenCV_VERSION} VERSION_GREATER 2.1.0)
+ 
+ 
+-else(EXISTS "${OpenCV_DIR}")
++else(EXISTS "${OpenCV_DIR}" AND NOT OpenCV_FOUND)
+   set(ERR_MSG "Please specify OpenCV directory using OpenCV_DIR env. variable")
+-endif(EXISTS "${OpenCV_DIR}")
++endif(EXISTS "${OpenCV_DIR}" AND NOT OpenCV_FOUND)
+ ##====================================================
+ 
+ ##====================================================
+--- CMakeLists.txt
++++ CMakeLists.txt
+@@ -33,7 +33,7 @@
+ 
+ #need to put here do setting LOCALE_DIR variable
+ find_package(Gettext)
+-if(Gettext_FOUND)
++if(GETTEXT_FOUND)
+ 	if(NOT LOCALE_DIR)
+ 		if(WIN32)
+ 			SET(LOCALE_DIR "bin/locale")
+@@ -55,7 +55,7 @@
+ 			message(STATUS "Cannot find msgfmt to convert language file. Translation won't be enabled")
+ 		endif()
+ 	endif(NOT LOCALE_DIR)
+-endif(Gettext_FOUND)
++endif(GETTEXT_FOUND)
+ add_subdirectory(themes)
+ add_subdirectory(data)
+ add_subdirectory(game)
+--- game/CMakeLists.txt
++++ game/CMakeLists.txt
+@@ -71,7 +71,7 @@
+ list(APPEND LIBS ${Boost_LIBRARIES})
+ 
+ # Find all the libs that don't require extra parameters
+-foreach(lib ${OUR_LIBS} SDL PangoCairo LibRSVG LibXML++ GLEW AVFormat SWScale OpenGL Z Jpeg Png PortAudio)
++foreach(lib ${OUR_LIBS} SDL PangoCairo LibRSVG LibXML++ GLEW AVFormat SWScale OpenGL ZLIB JPEG PNG PortAudio)
+ 	find_package(${lib} REQUIRED)
+ 	include_directories(${${lib}_INCLUDE_DIRS})
+ 	list(APPEND LIBS ${${lib}_LIBRARIES})
+@@ -79,7 +79,7 @@
+ endforeach(lib)
+ 
+ find_package(Gettext)
+-if(Gettext_FOUND)
++if(GETTEXT_FOUND)
+ 	include_directories(${Gettext_INCLUDE_DIRS})
+ 	list(APPEND LIBS ${Gettext_LIBRARIES})
+ 	add_definitions("-DUSE_GETTEXT")
+--- tools/CMakeLists.txt
++++ tools/CMakeLists.txt
+@@ -6,7 +6,7 @@
+ include_directories(${Boost_INCLUDE_DIRS})
+ 
+ # Find all the libs that don't require extra parameters
+-foreach(lib LibXML++ Magick++ Z Jpeg Tiff Png Freetype Z)
++foreach(lib LibXML++ Magick++ ZLIB JPEG TIFF PNG Freetype ZLIB)
+ 	find_package(${lib})
+ 	if (${lib}_FOUND)
+ 		include_directories(${${lib}_INCLUDE_DIRS})
+@@ -24,13 +24,13 @@
+ if (LibXML++_FOUND)
+ 	if (Boost_FOUND)
+ 		if (Magick++_FOUND)
+-			if (Z_FOUND)
++			if (ZLIB_FOUND)
+ 				add_executable(ss_extract ss_extract.cpp pak.cpp ipu_conv.cpp ss_cover.cpp)
+-				target_link_libraries(ss_extract ${LibXML++_LIBRARIES} ${Boost_LIBRARIES} ${Magick++_LIBRARIES} ${Z_LIBRARIES} ${Jpeg_LIBRARIES} ${Tiff_LIBRARIES} ${Png_LIBRARIES} ${Freetype_LIBRARY} ${Magick++_LIBRARIES})
++				target_link_libraries(ss_extract ${LibXML++_LIBRARIES} ${Boost_LIBRARIES} ${Magick++_LIBRARIES} ${ZLIB_LIBRARIES} ${JPEG_LIBRARIES} ${TIFF_LIBRARIES} ${PNG_LIBRARIES} ${Freetype_LIBRARY} ${Magick++_LIBRARIES})
+ 				set(targets ${targets} ss_extract)
+-			else (Z_FOUND)
++			else (ZLIB_FOUND)
+ 				message("No zlib found, not building ss_extract")
+-			endif (Z_FOUND)
++			endif (ZLIB_FOUND)
+ 		else (Magick++_FOUND)
+ 			message("No Magick++ found, not building ss_extract")
+ 		endif (Magick++_FOUND)
+@@ -40,7 +40,7 @@
+ 
+ 	if (Magick++_FOUND)
+ 		add_executable(ss_cover_conv cover_conv.cpp pak.cpp ss_cover.cpp)
+-		target_link_libraries(ss_cover_conv ${Magick++_LIBRARIES} ${LibXML++_LIBRARIES} ${Z_LIBRARIES} ${Jpeg_LIBRARIES} ${Tiff_LIBRARIES} ${Png_LIBRARIES} ${Freetype_LIBRARY} ${Magick++_LIBRARIES})
++		target_link_libraries(ss_cover_conv ${Magick++_LIBRARIES} ${LibXML++_LIBRARIES} ${ZLIB_LIBRARIES} ${JPEG_LIBRARIES} ${TIFF_LIBRARIES} ${PNG_LIBRARIES} ${Freetype_LIBRARY} ${Magick++_LIBRARIES})
+ 		set(targets ${targets} ss_cover_conv)
+ 	else (Magick++_FOUND)
+ 		message("No Magick++ found, not building ss_cover_conv")
+@@ -58,13 +58,13 @@
+ 	target_link_libraries(ss_archive_extract ${Boost_LIBRARIES})
+ 	set(targets ${targets} ss_archive_extract)
+ 
+-	if (Z_FOUND)
++	if (ZLIB_FOUND)
+ 		add_executable(itg_pck itg_pck.cc)
+-		target_link_libraries(itg_pck ${Boost_LIBRARIES} ${Z_LIBRARIES})
++		target_link_libraries(itg_pck ${Boost_LIBRARIES} ${ZLIB_LIBRARIES})
+ 		set(targets ${targets} itg_pck)
+ 
+ 		add_executable(ss_chc_decode ss_chc_decode.cpp)
+-		target_link_libraries(ss_chc_decode ${Boost_LIBRARIES} ${Z_LIBRARIES})
++		target_link_libraries(ss_chc_decode ${Boost_LIBRARIES} ${ZLIB_LIBRARIES})
+ 		set(targets ${targets} ss_chc_decode)
+ 	endif()
+ endif (Boost_FOUND)