From 4b808ab7f4b12551f5737bb666361efd79f62a3a Mon Sep 17 00:00:00 2001
From: tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>
Date: Fri, 5 Nov 2010 09:31:03 +0000
Subject: media plugins

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2710 b956fd51-792f-4845-bead-9b4dfca2ff2c
---
 mediaplugin/src/plugins/media/ffmpeg/ffmpeg_core.h | 136 +++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 mediaplugin/src/plugins/media/ffmpeg/ffmpeg_core.h

(limited to 'mediaplugin/src/plugins/media/ffmpeg/ffmpeg_core.h')

diff --git a/mediaplugin/src/plugins/media/ffmpeg/ffmpeg_core.h b/mediaplugin/src/plugins/media/ffmpeg/ffmpeg_core.h
new file mode 100644
index 00000000..9b55d5e4
--- /dev/null
+++ b/mediaplugin/src/plugins/media/ffmpeg/ffmpeg_core.h
@@ -0,0 +1,136 @@
+/* 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;
+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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