mnt_mpeg1.h

#ifndef MNT_MPEG1_H 
#define MNT_MPEG1_H


    /*
       * Constant definitions
     */
#define I_FRAME 1
#define P_FRAME 2
#define B_FRAME 3
#define D_FRAME 4

#define MOTION_FORWARD      1
#define MOTION_BACKWARD     2
#define MOTION_INTERPOLATE  3

/*
 * Various start code
 */
#define SEQ_START_CODE 0x000001b3
#define SEQ_END_CODE   0x000001b7
#define ISO_11172_END_CODE 0x000001b9
#define PACK_START_CODE 0x000001ba
#define SYS_START_CODE 0x000001bb
#define PIC_START_CODE 0x00000100
#define GOP_START_CODE 0x000001b8
#define EXT_START_CODE 0x000001b5
#define USER_START_CODE 0x000001b2
#define SLICE_MIN_START_CODE 0x00000101
#define SLICE_MAX_START_CODE 0x000001af
#define PACKET_MIN_START_CODE 0x0000001bc
#define PACKET_MAX_START_CODE 0x0000001f0

/*
 * Video pel_aspect_ratio values
 */
#define PEL_ASPECT_RATIO_10000 1
#define PEL_ASPECT_RATIO_06735 2
#define PEL_ASPECT_RATIO_07031 3
#define PEL_ASPECT_RATIO_07615 4
#define PEL_ASPECT_RATIO_08055 5
#define PEL_ASPECT_RATIO_08437 6
#define PEL_ASPECT_RATIO_08935 7
#define PEL_ASPECT_RATIO_09375 8
#define PEL_ASPECT_RATIO_09815 9
#define PEL_ASPECT_RATIO_10255 10
#define PEL_ASPECT_RATIO_10695 11
#define PEL_ASPECT_RATIO_11250 12
#define PEL_ASPECT_RATIO_11575 13
#define PEL_ASPECT_RATIO_12015 14

/*
 * Video picture_rate values
 */
#define PICTURE_RATE_23_976 1
#define PICTURE_RATE_24     2
#define PICTURE_RATE_25     3
#define PICTURE_RATE_29_97  4
#define PICTURE_RATE_30     5
#define PICTURE_RATE_50     6
#define PICTURE_RATE_59_94  7
#define PICTURE_RATE_60     8

/*
 * Packet's stream id
 */
#define DVM_STREAM_ID_STD_AUDIO 0xB8
#define DVM_STREAM_ID_STD_VIDEO 0xB9
#define DVM_STREAM_ID_RESERVED  0xBC
#define DVM_STREAM_ID_PRIVATE_1 0xBD
#define DVM_STREAM_ID_PRIVATE_2 0xBF
#define DVM_STREAM_ID_PADDING   0xBE

/* 
 * Special DCT values 
 */
#define EOB     62
#define ESCAPE  61
#define DCT_ERROR 63
#define END_OF_BITSTREAM (-1)

/*
 * Mpeg Audio constant
 */

#define MPEG_AUDIO_LAYER_1 3
#define MPEG_AUDIO_LAYER_2 2
#define MPEG_AUDIO_LAYER_3 1
#define MPEG_AUDIO_STEREO 0
#define MPEG_AUDIO_JOINT_STEREO 1
#define MPEG_AUDIO_DUAL_CHANNEL 2
#define MPEG_AUDIO_SINGLE_CHANNEL 3

/*
 * Return Code
 */

#define DVM_MPEG_OK 0
#define DVM_MPEG_NOT_FOUND -1
#define DVM_MPEG_INVALID_START_CODE -2
#define DVM_MPEG_INDEX_FULL 1


#endif

---