Add Interplay MVE format demuxer/decoder and muxer/encoder. Demuxer doesn't support seeking yet, but seems to work fi...

Original commit message from CVS:
Patch by: Jens Granseuer  <jensgr at gmx net>
* configure.ac:
* gst/mve/Makefile.am:
* gst/mve/TODO:
* gst/mve/gstmve.c:
* gst/mve/gstmvedemux.c:
* gst/mve/gstmvedemux.h:
* gst/mve/gstmvemux.c:
* gst/mve/gstmvemux.h:
* gst/mve/mve.h:
* gst/mve/mveaudiodec.c:
* gst/mve/mveaudioenc.c:
* gst/mve/mvevideodec16.c:
* gst/mve/mvevideodec8.c:
* gst/mve/mvevideoenc16.c:
* gst/mve/mvevideoenc8.c:
Add Interplay MVE format demuxer/decoder and muxer/encoder. Demuxer
doesn't support seeking yet, but seems to work fine otherwise.
Closes #348973.

1 files changed, 120 insertions, 0 deletions

diff --git a/gst/mve/gstmvemux.h b/gst/mve/gstmvemux.h
new file mode 100644
index 00000000..319b2ae4
--- /dev/null
+++ b/gst/mve/gstmvemux.h
@@ -0,0 +1,120 @@
+/* 
+ * Interplay MVE muxer plugin for GStreamer
+ * Copyright (C) 2006 Jens Granseuer <jensgr@gmx.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_MVE_MUX_H__
+#define __GST_MVE_MUX_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_MVE_MUX \
+  (gst_mve_mux_get_type())
+#define GST_MVE_MUX(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MVE_MUX,GstMveMux))
+#define GST_MVE_MUX_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MVE_MUX,GstMveMux))
+#define GST_IS_MVE_MUX(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MVE_MUX))
+#define GST_IS_MVE_MUX_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MVE_MUX))
+
+
+typedef struct _GstMveMux GstMveMux;
+typedef struct _GstMveMuxClass GstMveMuxClass;
+
+struct _GstMveMux {
+  GstElement element;
+  GMutex *lock;
+
+  /* pads */
+  GstPad *source;
+  GstPad *videosink;
+  GstPad *audiosink;
+
+  gboolean audio_pad_connected;
+  gboolean audio_pad_eos;
+  gboolean video_pad_connected;
+  gboolean video_pad_eos;
+
+  guint64 stream_offset;
+  /* audio stream time, really */
+  GstClockTime stream_time;
+  guint timer;
+  gint state;
+
+  /* ticks per frame */
+  GstClockTime frame_duration;
+
+  /* video stream properties */
+  guint16 width, height;
+  guint16 screen_width, screen_height;
+  /* bits per pixel */
+  guint8 bpp;
+  /* previous frames */
+  GstBuffer *last_frame;
+  GstBuffer *second_last_frame;
+  /* number of encoded frames */
+  guint16 video_frames;
+  /* palette handling */
+  gboolean pal_changed;
+  guint16 pal_first_color;
+  guint16 pal_colors;
+  /* whether to use expensive opcodes */
+  gboolean quick_encoding;
+
+  /* audio stream properties */
+  /* bits per sample */
+  guint8 bps;
+  guint32 rate;
+  guint8 channels;
+  gboolean compression;
+  /* current audio stream time */
+  GstClockTime next_ts;
+  /* maximum audio time we know about */
+  GstClockTime max_ts;
+  /* sample bytes per frame */
+  guint16 spf;
+  /* number of frames to use for audio lead-in */
+  guint16 lead_frames;
+  /* number of encoded frames */
+  guint16 audio_frames;
+
+  /* current chunk */
+  guint8 *chunk_code_map;
+  GByteArray *chunk_video;
+  GByteArray *chunk_audio;
+  gboolean chunk_has_palette;
+  gboolean chunk_has_audio;
+
+  /* buffers for incoming data */
+  GQueue *audio_buffer;
+  GQueue *video_buffer;
+};
+
+struct _GstMveMuxClass {
+  GstElementClass parent_class;
+};
+
+GType gst_mve_mux_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_MVE_MUX_H__ */