/* MPEGSTAT - analyzing tool for MPEG-I video streams * * Copyright (c) 1995 The Regents of the University of California. * All rights reserved. * * Technical University of Berlin, Germany, Dept. of Computer Science * Tom Pfeifer - Multimedia systems project - pfeifer@fokus.gmd.de * * Jens Brettin, Harald Masche, Alexander Schulze, Dirk Schubert * * This program uses parts of the source code of the Berkeley MPEG player * * --------------------------- * * Copyright (c) 1993 Technical University of Berlin, Germany * * for the parts of the Berkeley player used: * * Copyright (c) 1992 The Regents of the University of California. * All rights reserved. * * --------------------------- * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose, without fee, and without written agreement is * hereby granted, provided that the above copyright notices and the following * two paragraphs appear in all copies of this software. * * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA * or the Technical University of Berlin BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF * CALIFORNIA or the Technical University of Berlin HAS BEEN ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * THE UNIVERSITY OF CALIFORNIA and the Technical University of Berlin * SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE * UNIVERSITY OF CALIFORNIA and the Technical University of Berlin HAVE NO * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, * OR MODIFICATIONS. */ #include #include /* X11/xmd.h correctly defines INT32, etc */ #ifndef XMD_H typedef int INT32; typedef short INT16; typedef char INT8; #endif typedef unsigned int UINT32; typedef unsigned short UINT16; typedef unsigned char UINT8; /* Define Parsing error codes. */ #define SKIP_PICTURE (-10) #define SKIP_TO_START_CODE (-1) #define PARSE_OK 1 /* Define BOOLEAN, TRUE, and FALSE. */ #define BOOLEAN int #define TRUE 1 #define FALSE 0 /* Initial value for max_code_types */ #define MAX_CODE_TYPES 1024 /* The code assumes this will be 1024 or larger */ /* Set ring buffer size. */ #define RING_BUF_SIZE 5 /* Macros for picture code type. */ #define I_TYPE 1 #define P_TYPE 2 #define B_TYPE 3 #define D_TYPE 4 #define SKIP_P_TYPE 5 #define SKIP_B_TYPE 6 /* Start codes. */ #define SEQ_END_CODE 0x000001b7 #define SEQ_START_CODE 0x000001b3 #define GOP_START_CODE 0x000001b8 #define PICTURE_START_CODE 0x00000100 #define SLICE_MIN_START_CODE 0x00000101 #define SLICE_MAX_START_CODE 0x000001af #define EXT_START_CODE 0x000001b5 #define USER_START_CODE 0x000001b2 #define SEQUENCE_ERROR_CODE 0x000001b4 /* Macros used with macroblock address decoding. */ #define MB_STUFFING 34 #define MB_ESCAPE 35 /* Lock flags for pict images. */ #define DISPLAY_LOCK 0x01 #define PAST_LOCK 0x02 #define FUTURE_LOCK 0x04 #define HYBRID_DITHER 0 #define HYBRID2_DITHER 1 #define FS4_DITHER 2 #define FS2_DITHER 3 #define FS2FAST_DITHER 4 #define Twox2_DITHER 5 #define GRAY_DITHER 6 #define FULL_COLOR_DITHER 7 #define NO_DITHER 8 #define ORDERED_DITHER 9 #define MONO_DITHER 10 #define MONO_THRESHOLD 11 #define ORDERED2_DITHER 12 #define MBORDERED_DITHER 13 /* External declaration of row,col to zig zag conversion matrix. */ extern const int scan[][8]; /* Temporary definition of time stamp structure. */ typedef int TimeStamp; /* Structure with reconstructed pixel values. */ typedef struct pict_image { unsigned char *luminance; /* Luminance plane. */ unsigned char *Cr; /* Cr plane. */ unsigned char *Cb; /* Cb plane. */ unsigned char *display; /* Display plane. */ int locked; /* Lock flag. */ TimeStamp show_time; /* Presentation time. */ #ifdef SH_MEM XShmSegmentInfo shminfo; /* Segment info. */ XImage *ximage; /* Ximage struct. */ #endif } PictImage; /* Group of pictures structure. */ typedef struct GoP { BOOLEAN drop_flag; /* Flag indicating dropped frame. */ unsigned int tc_hours; /* Hour component of time code. */ unsigned int tc_minutes; /* Minute component of time code. */ unsigned int tc_seconds; /* Second component of time code. */ unsigned int tc_pictures; /* Picture counter of time code. */ BOOLEAN closed_gop; /* Indicates no pred. vectors to previous group of pictures. */ BOOLEAN broken_link; /* B frame unable to be decoded. */ char *ext_data; /* Extension data. */ char *user_data; /* User data. */ int ext_size; /* Length of Extension data */ int user_size; /* Length of User data */ char *code_types; /* char array representing picture coding types in display order */ int max_code_types; /* current size of code_types */ int picture_count; /* number of pictures in this GOP */ } GoP; /* Picture structure. */ typedef struct pict { unsigned int temp_ref; /* Temporal reference. */ unsigned int code_type; /* Frame type: P, B, I */ unsigned int vbv_delay; /* Buffer delay. */ BOOLEAN full_pel_forw_vector; /* Forw. vectors specified in full pixel values flag. */ unsigned int forw_r_size; /* Used for vector decoding. */ unsigned int forw_f; /* Used for vector decoding. */ BOOLEAN full_pel_back_vector; /* Back vectors specified in full pixel values flag. */ unsigned int back_r_size; /* Used in decoding. */ unsigned int back_f; /* Used in decoding. */ char *extra_info; /* Extra bit picture info. */ char *ext_data; /* Extension data. */ char *user_data; /* User data. */ int ext_size; /* Length of Extension data */ int user_size; /* Length of User data */ } Pict; /* Slice structure. */ typedef struct slice { unsigned int vert_pos; /* Vertical position of slice. */ unsigned int quant_scale; /* Quantization scale. */ char *extra_info; /* Extra bit slice info. */ } Slice; /* Macroblock structure. */ typedef struct macroblock { int mb_address; /* Macroblock address. */ int past_mb_addr; /* Previous mblock address. */ int motion_h_forw_code; /* Forw. horiz. motion vector code. */ unsigned int motion_h_forw_r; /* Used in decoding vectors. */ int motion_v_forw_code; /* Forw. vert. motion vector code. */ unsigned int motion_v_forw_r; /* Used in decdoinge vectors. */ int motion_h_back_code; /* Back horiz. motion vector code. */ unsigned int motion_h_back_r; /* Used in decoding vectors. */ int motion_v_back_code; /* Back vert. motion vector code. */ unsigned int motion_v_back_r; /* Used in decoding vectors. */ unsigned int cbp; /* Coded block pattern. */ BOOLEAN mb_intra; /* Intracoded mblock flag. */ BOOLEAN bpict_past_forw; /* Past B frame forw. vector flag. */ BOOLEAN bpict_past_back; /* Past B frame back vector flag. */ int past_intra_addr; /* Addr of last intracoded mblock. */ int recon_right_for_prev; /* Past right forw. vector. */ int recon_down_for_prev; /* Past down forw. vector. */ int recon_right_back_prev; /* Past right back vector. */ int recon_down_back_prev; /* Past down back vector. */ } Macroblock; /* Block structure. */ typedef struct block { short int dct_recon[8][8]; /* Reconstructed dct coeff matrix. */ short int dct_dc_y_past; /* Past lum. dc dct coefficient. */ short int dct_dc_cr_past; /* Past cr dc dct coefficient. */ short int dct_dc_cb_past; /* Past cb dc dct coefficient. */ } Block; /* Video stream structure. */ typedef struct vid_stream { unsigned int h_size; /* Horiz. size in pixels. */ unsigned int v_size; /* Vert. size in pixels. */ unsigned int mb_height; /* Vert. size in mblocks. */ unsigned int mb_width; /* Horiz. size in mblocks. */ unsigned char aspect_ratio; /* Code for aspect ratio. */ unsigned char orig_picture_rate; /* Code for picture rate as it appears in the stream*/ unsigned char picture_rate; /* a valid picture rate */ unsigned int bit_rate; /* Bit rate. */ unsigned int vbv_buffer_size; /* Minimum buffer size. */ BOOLEAN const_param_flag; /* Contrained parameter flag. */ unsigned char intra_quant_matrix[8][8]; /* Quantization matrix for intracoded frames. */ unsigned char non_intra_quant_matrix[8][8]; /* Quanitization matrix for non intracoded frames. */ char *ext_data; /* Extension data. */ char *user_data; /* User data. */ int ext_size; /* Length of Extension data */ int user_size; /* Length of User data */ GoP group; /* Current group of pict. */ Pict picture; /* Current picture. */ Slice slice; /* Current slice. */ Macroblock mblock; /* Current macroblock. */ Block block; /* Current block. */ int state; /* State of decoding. */ int bit_offset; /* Bit offset in stream. */ unsigned int *buffer; /* Pointer to next byte in buffer. */ int buf_length; /* Length of remaining buffer.*/ unsigned int *buf_start; /* Pointer to buffer start. */ int max_buf_length; /* Max lenght of buffer. */ PictImage *past; /* Past predictive frame. */ PictImage *future; /* Future predictive frame. */ PictImage *current; /* Current frame. */ PictImage *ring[RING_BUF_SIZE]; /* Ring buffer of frames. */ } VidStream; /* Declaration of global pointer to current video stream. */ extern VidStream *curVidStream; /* Dither flags external declaration. */ extern char *ditherFlags; /* Definition of Contant integer scale factor. */ #define CONST_BITS 13 /* Misc DCT definitions */ #define DCTSIZE 8 /* The basic DCT block is 8x8 samples */ #define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ #define GLOBAL /* a function referenced thru EXTERNs */ typedef short DCTELEM; typedef DCTELEM DCTBLOCK[DCTSIZE2]; extern double realTimeStart; extern int totNumFrames; extern unsigned int bitCount; extern int showEachFlag; extern unsigned int cacheHit[8][8]; extern unsigned int cacheMiss[8][8]; /* Statistics collecting structure */ typedef struct { unsigned int frame, slice, block, size, btype, qs; unsigned int mb_skipped, mb_coded, cblks, nblks; int q[4][256]; int chist[6]; } BlockVals; typedef struct { int frametype; unsigned int totsize; unsigned int number; unsigned int i_mbsize; unsigned int p_mbsize; unsigned int b_mbsize; unsigned int bi_mbsize; unsigned int i_mbnum; unsigned int p_mbnum; unsigned int b_mbnum; unsigned int bi_mbnum; unsigned int i_mbcbp[64]; unsigned int p_mbcbp[64]; unsigned int b_mbcbp[64]; unsigned int bi_mbcbp[64]; unsigned int i_mbcoeff[64]; unsigned int p_mbcoeff[64]; unsigned int b_mbcoeff[64]; unsigned int bi_mbcoeff[64]; unsigned long qual; unsigned int qnum; double tottime; } Statval; /* System Layer Junk */ #define PACK_START_CODE (unsigned int)0x000001ba #define SYSTEM_HEADER_START_CODE (unsigned int)0x000001bb #define PACKET_START_CODE_MASK (unsigned int)0xffffff00 #define PACKET_START_CODE_PREFIX (unsigned int)0x00000100 #define ISO_11172_END_CODE (unsigned int)0x000001b9 #define PACK_HEADER_SIZE 8 #define STD_AUDIO_STREAM_ID ((unsigned char) 0xb8) #define STD_VIDEO_STREAM_ID ((unsigned char) 0xb9) #define MIN_STREAM_ID_ID ((unsigned char) 0xbc) #define RESERVED_STREAM_ID ((unsigned char) 0xbc) #define PRIVATE_STREAM_1_ID ((unsigned char) 0xbd) #define PADDING_STREAM_ID ((unsigned char) 0xbe) #define PRIVATE_STREAM_2_ID ((unsigned char) 0xbf) #define NOT_PACKET_ID ((unsigned char) 0xff) #define KILL_BUFFER ((unsigned char) 0xfe) #define STD_SYSTEM_CLOCK_FREQ (unsigned long)90000 #define MUX_RATE_SCALE_FACTOR 50 #define MAX_STREAMS 8