自己生成MJPG格式AVI文件

注：本文是作者以前發表在其個人博客，現在發布到“聚豐開發”專欄

現在電子產品經常需要使用到視頻，于是對視頻技術的需求也日益高漲，通常做法是采用現成的硬件或軟件方案來實現對視頻數據的處理，要說掌握這部分算法的人并不多，大多數工程師沒有時間和精力去消化吸收這些算法。

MJPG是最簡單的視頻文件格式，存儲時是將圖像用JPG格式一幀一幀的保存起來，回放的時候按照規定的時間間隔一幀一幀的回放。用這種處理方法算法相對比較簡單，如果對圖像要求不高可以達到20~30倍的壓縮率，對于單片機來說不失為一種可行性較高的備選方案。

以前有個項目需要支持MJPG文件，為此我寫了一段PC程序進行代碼驗證，同時生成測試用MJPG文件。具體做法是預先做好10張JPG圖片，每張圖片都有VGA和QVGA兩種尺寸，然后按輸入參數生成相應的MJPG文件。比如輸入選擇VGA/10幀，生成的MJPG文件第一秒為第一張VGA圖片重復10次，依此類推。

程序生成的MJPG用電腦播放，如果能正常播放，就說明代碼對文件格式的處理基本正確。這里程序每一幀都對應有自己的JPG數據，實際上可以不這么做，MJPG文件有音頻和視頻流的播放序號，如果相鄰的視頻幀內容相同，是可以將播放序號指向同一張JPG圖像數據的。

每一幀自己有獨立的JPG圖像數據
播放序號： JPG01 JPG02 JPG03 ... JPG09 JPG10 JPG11
JPG01_Data：
...(第一張圖片內容)...
JPG02_Data：
...(第一張圖片內容)...
...
JPG09_Data：
...(第一張圖片內容)...
JPG10_Data：
...(第一張圖片內容)...
JPG11_Data：
...(第二張圖片內容)...

相鄰幀相同利用同一張JPG數據
播放序號： JPG01 JPG01 JPG01 ... JPG01 JPG01 JPG02
JPG01_Data：
...(第一張圖片內容)...
JPG02_Data：
...(第二張圖片內容)...
...
JPG10_Data：
...(第十張圖片內容)...

注意代碼只是用于臨時工具，沒有詳細注釋進行說明，代碼書寫也存在許多不規范的地方。

-------------------------參考代碼---------------------------

#include "string.h"
#include "stdio.h"

/*unsigned char mMJPEG_Header[] =
{
0x52,0x49,0x46,0x46,//0x0000 "RIFF"
0x00,0x00,0x00,0x00,//0x0004 length of data, need update it
0x41,0x56,0x49,0x20,//0x0008 RIFF form identifier "AVI "

0x4C,0x49,0x53,0x54,//0x000C List identifier "LIST"
0x46,0x01,0x00,0x00,//0x0010 Length of list(326 bytes)
0x68,0x64,0x72,0x6C,//0x0014 List type identifier "hdrl"

0x61,0x76,0x69,0x68,//0x0018 Chunk identifier "avih"
0x38,0x00,0x00,0x00,//0x001C Length of chunk(56 bytes)
0x00,0x00,0x00,0x00,//0x0020 Number of us per fer frame(=1000000/FrameRate), need update it
0x00,0x00,0x00,0x00,//0x0024 Max bytes per second(ignored)
0x00,0x00,0x00,0x00,//0x0028 Padding granularity(ignored)
0x10,0x00,0x01,0x00,//0x00,0x00,0x00,0x00,//0x002C Flags
0x00,0x00,0x00,0x00,//0x0030 Total number of frame, need update it
0x00,0x00,0x00,0x00,//0x0034 Intial frame number for frames
0x02,0x00,0x00,0x00,//0x0038 Number of streams(2)
0x00,0x00,0x10,0x00,//0x00,0x00,0x00,0x00,//0x003C Suggested buffer size(ignored)
0x00,0x00,0x00,0x00,//0x0040 Width of video, need update it
0x00,0x00,0x00,0x00,//0x0044 Height of video, need update it
0x00,0x00,0x00,0x00,//0x0048 Reserved
0x00,0x00,0x00,0x00,//0x004C Reserved
0x00,0x00,0x00,0x00,//0x0050 Reserved
0x00,0x00,0x00,0x00,//0x0054 Reserved

0x4C,0x49,0x53,0x54,//0x0058 List identifier "LIST"
0x94,0x00,0x00,0x00,//0x005C Length of list(148 bytes)
0x73,0x74,0x72,0x6C,//0x0060 List type identifier"strl"

0x73,0x74,0x72,0x68,//0x0064 Chunk identifier "strh"
0x38,0x00,0x00,0x00,//0x0068 Length of chunk(56 bytes)
0x76,0x69,0x64,0x73,//0x006C Stream type identifier "vids"
0x4D,0x4A,0x50,0x47,//0x0070 Stream handler identifier "MJPG"
0x00,0x00,0x00,0x00,//0x0074 Flags
0x00,0x00,//0x0078 Priority(ignored)
0x00,0x00,//0x007A Language(ignored)
0x00,0x00,0x00,0x00,//0x007C Initial frame number(usually is 0)
0x01,0x00,0x00,0x00,//0x0080 Scale(usually is 1)
0x40,0x42,0x0f,0x00,//0x00,0x00,0x00,0x00,//0x0084 Frame rate, need update it
0x00,0x00,0x00,0x00,//0x0088 Star(usually is 0)
0x00,0x00,0x00,0x00,//0x008C Length(usually is total numbers of frames), need update it
0x00,0x00,0x10,0x00,//0x00,0x00,0x00,0x00,//0x0090 Suggested buffer size(ignored)
0x10,0x27,0x00,0x00,//0x00,0x00,0x00,0x00,//0x0094 Quality(ignored)
0x00,0x00,0x00,0x00,//0x0098 Sample size(ignored)
0x00,0x00,//0x009C Frame upper left X coordinate
0x00,0x00,//0x009E Frame upper left Y coordinate
0x00,0x00,//0x00A0 Frame lower right X coordinate, need update it
0x00,0x00,//0x00A2 Frame lower right Y coordinate, need update it

0x73,0x74,0x72,0x66,//0x00A4 Chunk identifier "strf"
0x48,0x00,0x00,0x00,//0x00A8 Length of chunk(72 bytes)
0x28,0x00,0x00,0x00,//0x48,0x00,0x00,0x00,//0x00AC Length of this chunk(72 bytes)
0x00,0x00,0x00,0x00,//0x00B0 Width of video, need update it
0x00,0x00,0x00,0x00,//0x00B4 Height of video, need update it
0x01,0x00,//0x00B8 Number of planes(1)
0x18,0x00,//0x10,0x00,//0x00BA Bits per pixel(16)
0x4D,0x4A,0x50,0x47,//0x00BC Stream handler identifier "MJPG"
0x00,0x00,0x00,0x00,//0x00C0 Raw image size, need update it
0x00,0x00,0x00,0x00,//0x00C4 X pixels per meter(ignored)
0x00,0x00,0x00,0x00,//0x00C8 Y pixels pre meter(ignored)
0x00,0x00,0x00,0x00,//0x00CC Number of colors used(ignored)
0x00,0x00,0x00,0x00,//0x00D0 Number of colors important(ignored)
0x00,0x00,0x00,0x00,//0x00D4 DV audio channel 0 auxillary source(ignored)
0x00,0x00,0x00,0x00,//0x00D8 DV audio channel 0 auxillary control(ignored)
0x00,0x00,0x00,0x00,//0x00DC DV audio channel 1 auxillary source(ignored)
0x00,0x00,0x00,0x00,//0x00E0 DV audio channel 1 auxillary control(ignored)
0x00,0x00,0x00,0x00,//0x00E4 DV video auxillary source(ignored)
0x00,0x00,0x00,0x00,//0x00E8 DV video auxillary control(ignored)
0x00,0x00,0x00,0x00,//0x00EC Reserved
0x00,0x00,0x00,0x00,//0x00F0 Reserved

0x4C,0x49,0x53,0x54,//0x00F4 List identifier "LIST"
0x62,0x00,0x00,0x00,//0x00F8 Length of list(98 bytes)
0x73,0x74,0x72,0x6C,//0x00FC List type identifier "strl"

0x73,0x74,0x72,0x68,//0x0100 Chunk indentifier "strh"
0x38,0x00,0x00,0x00,//0x0104 Length of chunk(56 bytes)
0x61,0x75,0x64,0x73,//0x0108 Stream type identifier "auds"
0x00,0x00,0x00,0x00,//0x20,0x20,0x20,0x20,//0x010C Stream handler identifier
0x00,0x00,0x00,0x00,//0x0110 Flags
0x00,0x00,//0x0114 Priority(ignored)
0x00,0x00,//0x0116 Language(ignored)
0x00,0x00,0x00,0x00,//0x0118 Initial frame number(usually is 0)
0x01,0x00,0x00,0x00,//0x011C Scale(usually is 1)
0x40,0x1F,0x00,0x00,//0x0120 Sampling rate(8k)
0x00,0x00,0x00,0x00,//0x0124 Start(usually is 0)
0x00,0x00,0x00,0x00,//0x0128 Length(number of audio data segments), need update it
0x00,0x00,0x10,0x00,//0x00,0x00,0x00,0x00,//0x012C Suggested buffer size(ignored)
0x10,0x27,0x00,0x00,//0x00,0x00,0x00,0x00,//0x0130 Quality(ignored)
0x01,0x00,0x00,0x00,//0x00,0x00,0x00,0x00,//0x0134 Sample size(ignored)
0x00,0x00,//0x0138 Frame upper left X coordinate(ignored)
0x00,0x00,//0x013A Frame upper left Y coordinate(ignored)
0x00,0x00,//0x013C Frame lower right X coordinate(ignored)
0x00,0x00,//0x013E Frame lower right Y coordinate(ignored)

0x73,0x74,0x72,0x66,//0x0140 Chunk identifier "strf"
0x12,0x00,0x00,0x00,//0x0144 Length of chunk(18 bytes)
0x01,0x00,//0x0148 Format tag(PCM is 1)
0x01,0x00,//0x014A Number of audio channels(1)
0x40,0x1F,0x00,0x00,//0x014C Sampling rate(8k)
0x40,0x1F,0x00,0x00,//0x0150 Sampling rate x Number of audio channels
0x01,0x00,//0x00,0x00,//0x0154 Block alignment(ignored)
0x08,0x00,//0x0156 Bits per sample(8)
0x00,0x00,//0x0158 Size of extra information(0)

//0x4C,0x49,0x53,0x54,//0x015A List identifier "LIST"
//0x00,0x00,0x00,0x00,//0x015E Length of list, need update it
//0x6D,0x6F,0x76,0x69//0x0162 List type identifier "movi"
};*/

unsigned char mMJPEG_Header[]={
0x52, 0x49, 0x46, 0x46, 0x34, 0x06, 0x1c, 0x00, 0x41, 0x56, 0x49, 0x20, 0x4c, 0x49, 0x53, 0x54,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x4c, 0x49, 0x53, 0x54, 0x3c, 0xf7, 0x1b, 0x00, 0x6d, 0x6f, 0x76, 0x69};

void make_qvga_mjpeg()
{
unsigned long mFrameRate,mFrameTime,i,j,k,mTemp;
unsigned long mTargetFileLength,mSourceFileLength;
unsigned long mOffset,mSize;
unsigned char sFileName[256],ch;
FILE *fp1,*fp2,*fp3,*fp4;

mFrameRate=0;
printf("\r\nBegin make QVGA MJPG file\r\n");
while((mFrameRate<5)||(mframerate>30))
{
printf("Please input frame rate(5~30):");
scanf("%d",&mFrameRate);
}
printf("Please input target filename:");
scanf("%s",sFileName);

mFrameTime=1000000/mFrameRate;

mMJPEG_Header[0x20]=(unsigned char)mFrameTime&0xFF;
mMJPEG_Header[0x21]=(unsigned char)(mFrameTime>>8)&0xFF;
mMJPEG_Header[0x22]=(unsigned char)(mFrameTime>>16)&0xFF;
mMJPEG_Header[0x23]=(unsigned char)(mFrameTime>>24)&0xFF;

mMJPEG_Header[0x30]=(unsigned char)(mFrameRate*10)&0xFF;
mMJPEG_Header[0x31]=(unsigned char)((mFrameRate*10)>>8)&0xFF;
mMJPEG_Header[0x32]=(unsigned char)((mFrameRate*10)>>16)&0xFF;
mMJPEG_Header[0x33]=(unsigned char)((mFrameRate*10)>>24)&0xFF;

mMJPEG_Header[0x40]=0x40;
mMJPEG_Header[0x41]=0x01;
mMJPEG_Header[0x42]=0x00;
mMJPEG_Header[0x43]=0x00;

mMJPEG_Header[0x44]=0xF0;
mMJPEG_Header[0x45]=0x00;
mMJPEG_Header[0x46]=0x00;
mMJPEG_Header[0x47]=0x00;

mMJPEG_Header[0x80]=(unsigned char)mFrameTime&0xFF;
mMJPEG_Header[0x81]=(unsigned char)(mFrameTime>>8)&0xFF;
mMJPEG_Header[0x82]=(unsigned char)(mFrameTime>>16)&0xFF;
mMJPEG_Header[0x83]=(unsigned char)(mFrameTime>>24)&0xFF;

//mMJPEG_Header[0x84]=(unsigned char)mFrameRate&0xFF;
//mMJPEG_Header[0x85]=(unsigned char)(mFrameRate>>8)&0xFF;
//mMJPEG_Header[0x86]=(unsigned char)(mFrameRate>>16)&0xFF;
//mMJPEG_Header[0x87]=(unsigned char)(mFrameRate>>24)&0xFF;

mMJPEG_Header[0x8C]=(unsigned char)(mFrameRate*10)&0xFF;
mMJPEG_Header[0x8D]=(unsigned char)((mFrameRate*10)>>8)&0xFF;
mMJPEG_Header[0x8E]=(unsigned char)((mFrameRate*10)>>16)&0xFF;
mMJPEG_Header[0x8F]=(unsigned char)((mFrameRate*10)>>24)&0xFF;

mMJPEG_Header[0xA0]=0x40;
mMJPEG_Header[0xA1]=0x01;
mMJPEG_Header[0xA2]=0xF0;
mMJPEG_Header[0xA3]=0x00;

mMJPEG_Header[0xB0]=0x40;
mMJPEG_Header[0xB1]=0x01;
mMJPEG_Header[0xB2]=0x00;
mMJPEG_Header[0xB3]=0x00;

mMJPEG_Header[0xB4]=0xF0;
mMJPEG_Header[0xB5]=0x00;
mMJPEG_Header[0xB6]=0x00;
mMJPEG_Header[0xB7]=0x00;

//mMJPEG_Header[0xBA]=0x18;//must set as 24
//mMJPEG_Header[0xBB]=0x00;

mMJPEG_Header[0xC0]=0x00;
mMJPEG_Header[0xC1]=0x58;
mMJPEG_Header[0xC2]=0x02;
mMJPEG_Header[0xC3]=0x00;

mMJPEG_Header[0x120-0x20]=0x40;
mMJPEG_Header[0x121-0x20]=0x1F;
mMJPEG_Header[0x122-0x20]=0x00;
mMJPEG_Header[0x123-0x20]=0x00;

mMJPEG_Header[0x128-0x20]=(unsigned char)(8000*10)&0xFF;
mMJPEG_Header[0x129-0x20]=(unsigned char)((8000*10)>>8)&0xFF;
mMJPEG_Header[0x12A-0x20]=(unsigned char)((8000*10)>>16)&0xFF;
mMJPEG_Header[0x12B-0x20]=(unsigned char)((8000*10)>>24)&0xFF;

mMJPEG_Header[0x12C-0x20]=0x40;
mMJPEG_Header[0x12D-0x20]=0x1F;
mMJPEG_Header[0x12E-0x20]=0x00;
mMJPEG_Header[0x12F-0x20]=0x00;

mMJPEG_Header[0x14C-0x20]=0x40;
mMJPEG_Header[0x14D-0x20]=0x1F;
mMJPEG_Header[0x14E-0x20]=0x00;
mMJPEG_Header[0x14F-0x20]=0x00;

mMJPEG_Header[0x150-0x20]=0x40;
mMJPEG_Header[0x151-0x20]=0x1f;
mMJPEG_Header[0x152-0x20]=0x00;
mMJPEG_Header[0x153-0x20]=0x00;

/*mMJPEG_Header[0x120]=0x10;
mMJPEG_Header[0x121]=0x2B;
mMJPEG_Header[0x122]=0x00;
mMJPEG_Header[0x123]=0x00;

mMJPEG_Header[0x128]=(unsigned char)(8000*10)&0xFF;
mMJPEG_Header[0x129]=(unsigned char)((8000*10)>>8)&0xFF;
mMJPEG_Header[0x12A]=(unsigned char)((8000*10)>>16)&0xFF;
mMJPEG_Header[0x12B]=(unsigned char)((8000*10)>>24)&0xFF;

mMJPEG_Header[0x12C]=0x10;
mMJPEG_Header[0x12D]=0x2B;
mMJPEG_Header[0x12E]=0x00;
mMJPEG_Header[0x12F]=0x00;

mMJPEG_Header[0x14C]=0x10;
mMJPEG_Header[0x14D]=0x2B;
mMJPEG_Header[0x14E]=0x00;
mMJPEG_Header[0x14F]=0x00;

mMJPEG_Header[0x150]=0x10;
mMJPEG_Header[0x151]=0x2B;
mMJPEG_Header[0x152]=0x00;
mMJPEG_Header[0x153]=0x00;*/

mMJPEG_Header[0x3C]=0x00;
mMJPEG_Header[0x3D]=0x00;
mMJPEG_Header[0x3E]=0x10;
mMJPEG_Header[0x3F]=0x00;

mMJPEG_Header[0x90]=0x00;
mMJPEG_Header[0x91]=0x00;
mMJPEG_Header[0x92]=0x10;
mMJPEG_Header[0x93]=0x00;

fp1=fopen(sFileName,"wb+");
if(fp1==NULL)
{
printf("Target file open error!\r\n");
fcloseall();
return;
}
fp3=fopen("idx_tmp.bin","wb+");
if(fp3==NULL)
{
printf("Target file open error!\r\n");
fcloseall();
return;
}
fp4=fopen("10.pcm","rb+");
if(fp4==NULL)
{
printf("Source file open error!\r\n");
fcloseall();
return;
}

fwrite(mMJPEG_Header,1,sizeof(mMJPEG_Header),fp1);

//----------------
/*ch='L';
fwrite(&ch,1,1,fp3);
ch='I';
fwrite(&ch,1,1,fp3);
ch='S';
fwrite(&ch,1,1,fp3);
ch='T';
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch='m';
fwrite(&ch,1,1,fp3);
ch='o';
fwrite(&ch,1,1,fp3);
ch='v';
fwrite(&ch,1,1,fp3);
ch='i';
fwrite(&ch,1,1,fp3);*/
//-------------

ch='i';
fwrite(&ch,1,1,fp3);
ch='d';
fwrite(&ch,1,1,fp3);
ch='x';
fwrite(&ch,1,1,fp3);
ch='1';
fwrite(&ch,1,1,fp3);
mTemp=0;
fwrite(&mTemp,1,4,fp3);
mOffset=4;

for(i=0;i<10;i++)
{
switch(i)
{
case 0:
printf("0b.jpg ");
fp2=fopen("0b.jpg","rb+");
break;
case 1:
printf("1b.jpg ");
fclose(fp2);
fp2=fopen("1b.jpg","rb+");
break;
case 2:
printf("2b.jpg ");
fclose(fp2);
fp2=fopen("2b.jpg","rb+");
break;
case 3:
printf("3b.jpg ");
fclose(fp2);
fp2=fopen("3b.jpg","rb+");
break;
case 4:
printf("4b.jpg ");
fclose(fp2);
fp2=fopen("4b.jpg","rb");
break;
case 5:
printf("5b.jpg ");
fclose(fp2);
fp2=fopen("5b.jpg","rb+");
break;
case 6:
printf("6b.jpg ");
fclose(fp2);
fp2=fopen("6b.jpg","rb+");
break;
case 7:
printf("7b.jpg ");
fclose(fp2);
fp2=fopen("7b.jpg","rb+");
break;
case 8:
printf("8b.jpg ");
fclose(fp2);
fp2=fopen("8b.jpg","rb+");
break;
default:
printf("9b.jpg ");
fclose(fp2);
fp2=fopen("9b.jpg","rb+");
break;
}
if(fp2==NULL)
{
printf("Source file open error!\r\n");
fcloseall();
return;
}
//mSourceFileLength=(unsigned long)filelength(fp2);
fseek(fp2,0,SEEK_END);
mSourceFileLength=(unsigned long)ftell(fp2);

for(j=0;j{
//video
ch='0';
fwrite(&ch,1,1,fp3);
ch='0';
fwrite(&ch,1,1,fp3);
ch='d';
fwrite(&ch,1,1,fp3);
ch='c';
fwrite(&ch,1,1,fp3);
mTemp=0x00000010;
fwrite(&mTemp,1,4,fp3);
fwrite(&mOffset,1,4,fp3);
mSize=mSourceFileLength;
if(mSize&1)
{
//mSize++;
}
fwrite(&mSize,1,4,fp3);
mOffset+=(mSize+8);

ch='0';
fwrite(&ch,1,1,fp1);
ch='0';
fwrite(&ch,1,1,fp1);
ch='d';
fwrite(&ch,1,1,fp1);
ch='c';
fwrite(&ch,1,1,fp1);
mSize=mSourceFileLength;
if(mSize&1)
{
//mSize++;
}
fwrite(&mSize,1,4,fp1);
fseek(fp2,0,SEEK_SET);
for(k=0;k{
if((k&0xFF)==0)
{
printf(".");
}
fread(&ch,1,1,fp2);
fwrite(&ch,1,1,fp1);
}
if(mSourceFileLength&1)
{
ch=0;//double bytes align
//fwrite(&ch,1,1,fp1);
}

//audio
ch='0';
fwrite(&ch,1,1,fp3);
ch='1';
fwrite(&ch,1,1,fp3);
ch='w';
fwrite(&ch,1,1,fp3);
ch='b';
fwrite(&ch,1,1,fp3);
mTemp=0x00000010;
fwrite(&mTemp,1,4,fp3);
fwrite(&mOffset,1,4,fp3);
mSize=8000/mFrameRate;
if(mSize&1)
{
//mSize++;//double bytes align
}
fwrite(&mSize,1,4,fp3);
mOffset+=(mSize+8);

k=ftell(fp1);
ch='0';
fwrite(&ch,1,1,fp1);
ch='1';
fwrite(&ch,1,1,fp1);
ch='w';
fwrite(&ch,1,1,fp1);
ch='b';
fwrite(&ch,1,1,fp1);
mSize=8000/mFrameRate;
if(mSize&1)
{
//mSize++;//double bytes align
}
fwrite(&mSize,1,4,fp1);
ch=0;
for(k=0;k{
if((k&0xFF)==0)
{
printf(".");
}
//ch++;
fread(&ch,1,1,fp4);
fwrite(&ch,1,1,fp1);
}
}
}
mTargetFileLength=ftell(fp1);
if(mTargetFileLength&1)
{
ch=0;
fwrite(&ch,1,1,fp1);
}
mSize=ftell(fp3);
mSize-=8;
fseek(fp3,4,SEEK_SET);
fwrite(&mSize,1,4,fp3);

mTargetFileLength=ftell(fp1);
mTargetFileLength-=0x808;
fseek(fp1,0x0804,SEEK_SET);
fwrite(&mTargetFileLength,1,4,fp1);
//mTargetFileLength=ftell(fp1);
//mTargetFileLength-=(sizeof(mMJPEG_Header)+8);
//fseek(fp1,sizeof(mMJPEG_Header)+4,SEEK_SET);
//fwrite(&mTargetFileLength,1,4,fp1);

fseek(fp1,0,SEEK_END);
mSize+=8;
fseek(fp3,0,SEEK_SET);
for(i=0;i{
fread(&ch,1,1,fp3);
fwrite(&ch,1,1,fp1);
}

mTargetFileLength=ftell(fp1);
fseek(fp1,0x0004,SEEK_SET);
mTargetFileLength-=8;
fwrite(&mTargetFileLength,1,4,fp1);

printf("\r\n");
fcloseall();
}

void make_vga_mjpeg()
{
unsigned long mFrameRate,mFrameTime,i,j,k,mTemp;
unsigned long mTargetFileLength,mSourceFileLength;
unsigned long mOffset,mSize;
unsigned char sFileName[256],ch;
FILE *fp1,*fp2,*fp3,*fp4;

mFrameRate=0;
printf("\r\nBegin make VGA MJPG file\r\n");
while((mFrameRate<5)||(mframerate>30))
{
printf("Please input frame rate(5~30):");
scanf("%d",&mFrameRate);
}
printf("Please input target filename:");
scanf("%s",sFileName);

mFrameTime=1000000/mFrameRate;

mMJPEG_Header[0x20]=(unsigned char)mFrameTime&0xFF;
mMJPEG_Header[0x21]=(unsigned char)(mFrameTime>>8)&0xFF;
mMJPEG_Header[0x22]=(unsigned char)(mFrameTime>>16)&0xFF;
mMJPEG_Header[0x23]=(unsigned char)(mFrameTime>>24)&0xFF;

mMJPEG_Header[0x30]=(unsigned char)(mFrameRate*10)&0xFF;
mMJPEG_Header[0x31]=(unsigned char)((mFrameRate*10)>>8)&0xFF;
mMJPEG_Header[0x32]=(unsigned char)((mFrameRate*10)>>16)&0xFF;
mMJPEG_Header[0x33]=(unsigned char)((mFrameRate*10)>>24)&0xFF;

mMJPEG_Header[0x40]=0x80;
mMJPEG_Header[0x41]=0x02;
mMJPEG_Header[0x42]=0x00;
mMJPEG_Header[0x43]=0x00;

mMJPEG_Header[0x44]=0xE0;
mMJPEG_Header[0x45]=0x01;
mMJPEG_Header[0x46]=0x00;
mMJPEG_Header[0x47]=0x00;

mMJPEG_Header[0x80]=(unsigned char)mFrameTime&0xFF;
mMJPEG_Header[0x81]=(unsigned char)(mFrameTime>>8)&0xFF;
mMJPEG_Header[0x82]=(unsigned char)(mFrameTime>>16)&0xFF;
mMJPEG_Header[0x83]=(unsigned char)(mFrameTime>>24)&0xFF;

//mMJPEG_Header[0x84]=(unsigned char)mFrameRate&0xFF;
//mMJPEG_Header[0x85]=(unsigned char)(mFrameRate>>8)&0xFF;
//mMJPEG_Header[0x86]=(unsigned char)(mFrameRate>>16)&0xFF;
//mMJPEG_Header[0x87]=(unsigned char)(mFrameRate>>24)&0xFF;

mMJPEG_Header[0x8C]=(unsigned char)(mFrameRate*10)&0xFF;
mMJPEG_Header[0x8D]=(unsigned char)((mFrameRate*10)>>8)&0xFF;
mMJPEG_Header[0x8E]=(unsigned char)((mFrameRate*10)>>16)&0xFF;
mMJPEG_Header[0x8F]=(unsigned char)((mFrameRate*10)>>24)&0xFF;

mMJPEG_Header[0xA0]=0x80;
mMJPEG_Header[0xA1]=0x02;
mMJPEG_Header[0xA2]=0xE0;
mMJPEG_Header[0xA3]=0x01;

mMJPEG_Header[0xB0]=0x80;
mMJPEG_Header[0xB1]=0x02;
mMJPEG_Header[0xB2]=0x00;
mMJPEG_Header[0xB3]=0x00;

mMJPEG_Header[0xB4]=0xE0;
mMJPEG_Header[0xB5]=0x01;
mMJPEG_Header[0xB6]=0x00;
mMJPEG_Header[0xB7]=0x00;

//mMJPEG_Header[0xBA]=0x18;//must set as 24
//mMJPEG_Header[0xBB]=0x00;

mMJPEG_Header[0xC0]=0x00;
mMJPEG_Header[0xC1]=0x60;
mMJPEG_Header[0xC2]=0x09;
mMJPEG_Header[0xC3]=0x00;

mMJPEG_Header[0x120-0x20]=0x40;
mMJPEG_Header[0x121-0x20]=0x1F;
mMJPEG_Header[0x122-0x20]=0x00;
mMJPEG_Header[0x123-0x20]=0x00;

mMJPEG_Header[0x128-0x20]=(unsigned char)(8000*10)&0xFF;
mMJPEG_Header[0x129-0x20]=(unsigned char)((8000*10)>>8)&0xFF;
mMJPEG_Header[0x12A-0x20]=(unsigned char)((8000*10)>>16)&0xFF;
mMJPEG_Header[0x12B-0x20]=(unsigned char)((8000*10)>>24)&0xFF;

mMJPEG_Header[0x12C-0x20]=0x40;
mMJPEG_Header[0x12D-0x20]=0x1F;
mMJPEG_Header[0x12E-0x20]=0x00;
mMJPEG_Header[0x12F-0x20]=0x00;

mMJPEG_Header[0x14C-0x20]=0x40;
mMJPEG_Header[0x14D-0x20]=0x1F;
mMJPEG_Header[0x14E-0x20]=0x00;
mMJPEG_Header[0x14F-0x20]=0x00;

mMJPEG_Header[0x150-0x20]=0x40;
mMJPEG_Header[0x151-0x20]=0x1F;
mMJPEG_Header[0x152-0x20]=0x00;
mMJPEG_Header[0x153-0x20]=0x00;

/*mMJPEG_Header[0x120]=0x10;
mMJPEG_Header[0x121]=0x2B;
mMJPEG_Header[0x122]=0x00;
mMJPEG_Header[0x123]=0x00;

mMJPEG_Header[0x128]=(unsigned char)(8000*10)&0xFF;
mMJPEG_Header[0x129]=(unsigned char)((8000*10)>>8)&0xFF;
mMJPEG_Header[0x12A]=(unsigned char)((8000*10)>>16)&0xFF;
mMJPEG_Header[0x12B]=(unsigned char)((8000*10)>>24)&0xFF;

mMJPEG_Header[0x12C]=0x10;
mMJPEG_Header[0x12D]=0x2B;
mMJPEG_Header[0x12E]=0x00;
mMJPEG_Header[0x12F]=0x00;

mMJPEG_Header[0x14C]=0x10;
mMJPEG_Header[0x14D]=0x2B;
mMJPEG_Header[0x14E]=0x00;
mMJPEG_Header[0x14F]=0x00;

mMJPEG_Header[0x150]=0x10;
mMJPEG_Header[0x151]=0x2B;
mMJPEG_Header[0x152]=0x00;
mMJPEG_Header[0x153]=0x00;*/

mMJPEG_Header[0x3C]=0x00;
mMJPEG_Header[0x3D]=0x00;
mMJPEG_Header[0x3E]=0x10;
mMJPEG_Header[0x3F]=0x00;

mMJPEG_Header[0x90]=0x00;
mMJPEG_Header[0x91]=0x00;
mMJPEG_Header[0x92]=0x10;
mMJPEG_Header[0x93]=0x00;

fp1=fopen(sFileName,"wb+");
if(fp1==NULL)
{
printf("Target file open error!\r\n");
fcloseall();
return;
}
fp3=fopen("idx_tmp.bin","wb+");
if(fp3==NULL)
{
printf("Target file open error!\r\n");
fcloseall();
return;
}
fp4=fopen("10.pcm","rb+");
if(fp4==NULL)
{
printf("Source file open error!\r\n");
fcloseall();
return;
}

fwrite(mMJPEG_Header,1,sizeof(mMJPEG_Header),fp1);

//----------------
/*ch='L';
fwrite(&ch,1,1,fp3);
ch='I';
fwrite(&ch,1,1,fp3);
ch='S';
fwrite(&ch,1,1,fp3);
ch='T';
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch=0;
fwrite(&ch,1,1,fp3);
ch='m';
fwrite(&ch,1,1,fp3);
ch='o';
fwrite(&ch,1,1,fp3);
ch='v';
fwrite(&ch,1,1,fp3);
ch='i';
fwrite(&ch,1,1,fp3);*/
//-------------

ch='i';
fwrite(&ch,1,1,fp3);
ch='d';
fwrite(&ch,1,1,fp3);
ch='x';
fwrite(&ch,1,1,fp3);
ch='1';
fwrite(&ch,1,1,fp3);
mTemp=0;
fwrite(&mTemp,1,4,fp3);
mOffset=4;

for(i=0;i<10;i++)
{
switch(i)
{
case 0:
printf("0a.jpg ");
fp2=fopen("0a.jpg","rb+");
break;
case 1:
printf("1a.jpg ");
fclose(fp2);
fp2=fopen("1a.jpg","rb+");
break;
case 2:
printf("2a.jpg ");
fclose(fp2);
fp2=fopen("2a.jpg","rb+");
break;
case 3:
printf("3a.jpg ");
fclose(fp2);
fp2=fopen("3a.jpg","rb+");
break;
case 4:
printf("4a.jpg ");
fclose(fp2);
fp2=fopen("4a.jpg","rb");
break;
case 5:
printf("5a.jpg ");
fclose(fp2);
fp2=fopen("5a.jpg","rb+");
break;
case 6:
printf("6a.jpg ");
fclose(fp2);
fp2=fopen("6a.jpg","rb+");
break;
case 7:
printf("7a.jpg ");
fclose(fp2);
fp2=fopen("7a.jpg","rb+");
break;
case 8:
printf("8a.jpg ");
fclose(fp2);
fp2=fopen("8a.jpg","rb+");
break;
default:
printf("9a.jpg ");
fclose(fp2);
fp2=fopen("9a.jpg","rb+");
break;
}
if(fp2==NULL)
{
printf("Source file open error!\r\n");
fcloseall();
return;
}
//mSourceFileLength=(unsigned long)filelength(fp2);
fseek(fp2,0,SEEK_END);
mSourceFileLength=(unsigned long)ftell(fp2);

for(j=0;j{
//video
ch='0';
fwrite(&ch,1,1,fp3);
ch='0';
fwrite(&ch,1,1,fp3);
ch='d';
fwrite(&ch,1,1,fp3);
ch='c';
fwrite(&ch,1,1,fp3);
mTemp=0x00000010;
fwrite(&mTemp,1,4,fp3);
fwrite(&mOffset,1,4,fp3);
mSize=mSourceFileLength;
if(mSize&1)
{
//mSize++;
}
fwrite(&mSize,1,4,fp3);
mOffset+=(mSize+8);

ch='0';
fwrite(&ch,1,1,fp1);
ch='0';
fwrite(&ch,1,1,fp1);
ch='d';
fwrite(&ch,1,1,fp1);
ch='c';
fwrite(&ch,1,1,fp1);
mSize=mSourceFileLength;
if(mSize&1)
{
//mSize++;
}
fwrite(&mSize,1,4,fp1);
fseek(fp2,0,SEEK_SET);
for(k=0;k{
if((k&0xFF)==0)
{
printf(".");
}
fread(&ch,1,1,fp2);
fwrite(&ch,1,1,fp1);
}
if(mSourceFileLength&1)
{
ch=0;//double bytes align
//fwrite(&ch,1,1,fp1);
}

//audio
ch='0';
fwrite(&ch,1,1,fp3);
ch='1';
fwrite(&ch,1,1,fp3);
ch='w';
fwrite(&ch,1,1,fp3);
ch='b';
fwrite(&ch,1,1,fp3);
mTemp=0x00000010;
fwrite(&mTemp,1,4,fp3);
fwrite(&mOffset,1,4,fp3);
mSize=8000/mFrameRate;
if(mSize&1)
{
//mSize++;//double bytes align
}
fwrite(&mSize,1,4,fp3);
mOffset+=(mSize+8);

k=ftell(fp1);
ch='0';
fwrite(&ch,1,1,fp1);
ch='1';
fwrite(&ch,1,1,fp1);
ch='w';
fwrite(&ch,1,1,fp1);
ch='b';
fwrite(&ch,1,1,fp1);
mSize=8000/mFrameRate;
if(mSize&1)
{
//mSize++;//double bytes align
}
fwrite(&mSize,1,4,fp1);
ch=0;
for(k=0;k{
if((k&0xFF)==0)
{
printf(".");
}
//ch++;
fread(&ch,1,1,fp4);
fwrite(&ch,1,1,fp1);
}
}
}
mTargetFileLength=ftell(fp1);
if(mTargetFileLength&1)
{
ch=0;
fwrite(&ch,1,1,fp1);
}
mSize=ftell(fp3);
mSize-=8;
fseek(fp3,4,SEEK_SET);
fwrite(&mSize,1,4,fp3);

mTargetFileLength=ftell(fp1);
mTargetFileLength-=0x808;
fseek(fp1,0x0804,SEEK_SET);
fwrite(&mTargetFileLength,1,4,fp1);
//mTargetFileLength=ftell(fp1);
//mTargetFileLength-=(sizeof(mMJPEG_Header)+8);
//fseek(fp1,sizeof(mMJPEG_Header)+4,SEEK_SET);
//fwrite(&mTargetFileLength,1,4,fp1);

fseek(fp1,0,SEEK_END);
mSize+=8;
fseek(fp3,0,SEEK_SET);
for(i=0;i{
fread(&ch,1,1,fp3);
fwrite(&ch,1,1,fp1);
}

mTargetFileLength=ftell(fp1);
fseek(fp1,0x0004,SEEK_SET);
mTargetFileLength-=8;
fwrite(&mTargetFileLength,1,4,fp1);

printf("\r\n");
fcloseall();
}

main()
{
char ch;
do
{
printf("\r\nSelect image size(1 QVGA, 2 VGA):");
//scanf("%c",&ch);
ch=getch();
printf("%c",ch);
}while((ch!='1')&&(ch!='2'));

if(ch=='1')
{
make_qvga_mjpeg();
}
else
{
make_vga_mjpeg();
}
printf("\r\nPress any key to Exit");
getch();

}