From 606f5d9cd2ecba4df175bc722621e4e4df3bc516 Mon Sep 17 00:00:00 2001
From: mickeyl <mickeyl>
Date: Sun, 20 Apr 2003 17:36:20 +0000
Subject: too much work for that damn video feature... some progress, but it's still not right

---
(limited to 'noncore/multimedia/camera/avi.h')

diff --git a/noncore/multimedia/camera/avi.h b/noncore/multimedia/camera/avi.h
new file mode 100644
index 0000000..fbdc14a
--- a/dev/null
+++ b/noncore/multimedia/camera/avi.h
@@ -0,0 +1,142 @@
+/**********************************************************************
+** Copyright (C) 2003 Michael 'Mickey' Lauer.  All rights reserved.
+** Based on work from Andrew Tridgell and the jpegtoavi project
+**
+** This file is part of Opie Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+**********************************************************************/
+
+#ifndef AVI_H
+#define AVI_H
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned u32;
+
+// header flags
+
+const u32 AVIF_HASINDEX=0x00000010;    /* index at end of file */
+const u32 AVIF_MUSTUSEINDEX=0x00000020;
+const u32 AVIF_ISINTERLEAVED=0x00000100;
+const u32 AVIF_TRUSTCKTYPE=0x00000800;
+const u32 AVIF_WASCAPTUREFILE=0x00010000;
+const u32 AVIF_COPYRIGHTED=0x00020000;
+
+// function prototypes
+
+void avi_start(int fd, int frame);
+void avi_add(int fd, u8 *buf, int size);
+void avi_end(int fd, int width, int height, int fps);
+void fprint_quartet(int fd, unsigned int i);
+
+// the following structures are ordered as they appear in a typical AVI
+
+struct riff_head {
+    char riff[4];               // chunk type = "RIFF"
+    u32 size;                   // chunk size
+    char avistr[4];             // avi magic = "AVI "
+};
+
+// the avih chunk contains a number of list chunks
+
+struct avi_head {
+    char avih[4];               // chunk type = "avih"
+    u32 size;                   // chunk size
+    u32 time;                   // microsec per frame == 1e6 / fps
+    u32 maxbytespersec;         // = 1e6*(total size/frames)/per_usec)
+    u32 pad;                    // pad = 0
+    u32 flags;                  // e.g. AVIF_HASINDEX
+    u32 nframes;                // total number of frames
+    u32 initialframes;          // = 0
+    u32 numstreams;             // = 1 for now (later = 2 because of audio)
+    u32 suggested_bufsize;      // = 0 (no suggestion)
+    u32 width;                  // width
+    u32 height;                 // height
+    u32 reserved[4];            // reserved for future use = 0
+};
+
+
+// the LIST chunk contains a number (==#numstreams) of stream chunks
+
+struct list_head {
+    char list[4];               // chunk type = "LIST"
+    u32 size;
+    char type[4];
+};
+
+
+struct dmlh_head {
+    char dmlh[4];               // chunk type dmlh
+    u32 size;                   // 4
+    u32 nframes;                // number of frames
+};
+
+
+struct stream_head {
+    char strh[4];               // chunk type = "strh"
+    u32 size;                   // chunk size
+    char vids[4];               // stream type = "vids"
+    char codec[4];              // codec name (for us, = "MJPG")
+    u32 flags;                  // contains AVIT_F* flags
+    u16 priority;               // = 0
+    u16 language;               // = 0
+    u32 initialframes;          // = 0
+    u32 scale;                  // = usec per frame
+    u32 rate;                   // 1e6
+    u32 start;                  // = 0
+    u32 length;                 // number of frames
+    u32 suggested_bufsize;      // = 0
+    u32 quality;                // = 0 ?
+    u32 samplesize;             // = 0 ?
+};
+
+
+struct db_head {
+    char db[4];                 // "00db"
+    u32 size;
+};
+
+// a frame chunk contains one JPEG image
+
+struct frame_head {
+    char strf[4];               // chunk type = "strf"
+    u32 size;                   // sizeof chunk (big endian)    ?
+    u32 size2;                  // sizeof chunk (little endian) ?
+    u32 width;
+    u32 height;
+    u16 planes;                 // 1 bitplane
+    u16 bitcount;               // 24 bpl
+    char codec[4];              // MJPG (for us)
+    u32 unpackedsize;           // = 3*w*h
+    u32 r1;                     // reserved
+    u32 r2;                     // reserved
+    u32 clr_used;               // reserved
+    u32 clr_important;          // reserved
+};
+
+struct idx1_head {
+    char idx1[4];               // chunk type = "idx1"
+    u32 size;                   // chunk size
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--
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