== FFMPEG ==

Added central compatibility header file, which enables blender to compile
against very old ffmpeg versions as well as very new versions using the
*NEW* API. (Old API functions are simulated using macros and inline functions)

Added a whole lot of additional checks, tested against 6 different versions
down the timeline, hopefully, now finally all is well.

1 files changed, 133 insertions, 0 deletions

diff --git a/intern/ffmpeg/ffmpeg_compat.h b/intern/ffmpeg/ffmpeg_compat.h
new file mode 100644
index 00000000000..834df3d7055
--- /dev/null
+++ b/intern/ffmpeg/ffmpeg_compat.h
@@ -0,0 +1,133 @@
+#ifndef __ffmpeg_compat_h_included__
+#define __ffmpeg_compat_h_included__ 1
+
+/*
+ * $Id$
+ *
+ * compatibility macros to make every ffmpeg installation appear
+ * like the most current installation (wrapping some functionality sometimes)
+ * it also includes all ffmpeg header files at once, no need to do it 
+ * seperately.
+ *
+ * Copyright (c) 2011 Peter Schlaile
+ *
+ * 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.
+ *
+ */
+
+
+#include <libavformat/avformat.h>
+#include <libavcodec/avcodec.h>
+#include <libavutil/rational.h>
+
+#if (LIBAVFORMAT_VERSION_MAJOR > 52) || ((LIBAVFORMAT_VERSION_MAJOR >= 52) && (LIBAVFORMAT_VERSION_MINOR >= 101))
+#define FFMPEG_HAVE_PARSE_UTILS 1
+#include <libavutil/parseutils.h>
+#endif
+
+#include <libswscale/swscale.h>
+#include <libavcodec/opt.h>
+
+#if (LIBAVFORMAT_VERSION_MAJOR > 52) || ((LIBAVFORMAT_VERSION_MAJOR >= 52) && (LIBAVFORMAT_VERSION_MINOR >= 105))
+#define FFMPEG_HAVE_AVIO 1
+#endif
+
+#if (LIBAVFORMAT_VERSION_MAJOR > 53) || ((LIBAVFORMAT_VERSION_MAJOR >= 53) && (LIBAVFORMAT_VERSION_MINOR >= 1))
+#define FFMPEG_HAVE_DEFAULT_VAL_UNION 1
+#endif
+
+#if (LIBAVFORMAT_VERSION_MAJOR > 52) || ((LIBAVFORMAT_VERSION_MAJOR >= 52) && (LIBAVFORMAT_VERSION_MINOR >= 101))
+#define FFMPEG_HAVE_AV_DUMP_FORMAT 1
+#endif
+
+#if (LIBAVFORMAT_VERSION_MAJOR > 52) || ((LIBAVFORMAT_VERSION_MAJOR >= 52) && (LIBAVFORMAT_VERSION_MINOR >= 45))
+#define FFMPEG_HAVE_AV_GUESS_FORMAT 1
+#endif
+
+#if (LIBAVCODEC_VERSION_MAJOR > 52) || ((LIBAVCODEC_VERSION_MAJOR >= 52) && (LIBAVCODEC_VERSION_MINOR >= 23))
+#define FFMPEG_HAVE_DECODE_AUDIO3 1
+#define FFMPEG_HAVE_DECODE_VIDEO2 1
+#endif
+
+#if (LIBAVCODEC_VERSION_MAJOR > 52) || ((LIBAVCODEC_VERSION_MAJOR >= 52) && (LIBAVCODEC_VERSION_MINOR >= 64))
+#define FFMPEG_HAVE_AVMEDIA_TYPES 1
+#endif
+
+#if (LIBAVCODEC_VERSION_MAJOR >= 52) && (LIBAVCODEC_VERSION_MINOR >= 29) && \
+	 (LIBSWSCALE_VERSION_MAJOR >= 0) && (LIBSWSCALE_VERSION_MINOR >= 10)
+#define FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT
+#endif
+
+#ifndef FFMPEG_HAVE_AVIO
+#define AVIO_FLAG_WRITE URL_WRONLY
+#define avio_open url_fopen
+#define avio_tell url_ftell
+#define avio_close url_fclose
+#endif
+
+/* there are some version inbetween, which have avio_... functions but no
+   AVIO_FLAG_... */
+#ifndef AVIO_FLAG_WRITE
+#define AVIO_FLAG_WRITE URL_WRONLY
+#endif
+
+#ifndef AV_PKT_FLAG_KEY
+#define AV_PKT_FLAG_KEY PKT_FLAG_KEY
+#endif
+
+#ifndef FFMPEG_HAVE_AV_DUMP_FORMAT
+#define av_dump_format dump_format
+#endif
+
+#ifndef FFMPEG_HAVE_AV_GUESS_FORMAT
+#define av_guess_format guess_format
+#endif
+
+#ifndef FFMPEG_HAVE_PARSE_UTILS
+#define av_parse_video_rate av_parse_video_frame_rate
+#endif
+
+#ifdef FFMPEG_HAVE_DEFAULT_VAL_UNION
+#define FFMPEG_DEF_OPT_VAL_INT(OPT) OPT->default_val.i64
+#define FFMPEG_DEF_OPT_VAL_DOUBLE(OPT) OPT->default_val.dbl
+#else
+#define FFMPEG_DEF_OPT_VAL_INT(OPT) OPT->default_val
+#define FFMPEG_DEF_OPT_VAL_DOUBLE(OPT) OPT->default_val
+#endif
+
+#ifndef FFMPEG_HAVE_AVMEDIA_TYPES
+#define AVMEDIA_TYPE_VIDEO CODEC_TYPE_VIDEO
+#define AVMEDIA_TYPE_AUDIO CODEC_TYPE_AUDIO
+#endif
+
+#ifndef FFMPEG_HAVE_DECODE_AUDIO3
+static inline 
+int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
+			  int *frame_size_ptr, AVPacket *avpkt)
+{
+	return avcodec_decode_audio2(avctx, samples,
+				     frame_size_ptr, avpkt->data,
+				     avpkt->size);
+}
+#endif
+
+#ifndef FFMPEG_HAVE_DECODE_VIDEO2
+static inline
+int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
+                         int *got_picture_ptr,
+                         AVPacket *avpkt)
+{
+	return avcodec_decode_video(avctx, picture, got_picture_ptr,
+				    avpkt->data, avpkt->size);
+}
+#endif
+
+#endif