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/************************************************************************** |
/***************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC - Example for encoding and decoding |
* XVID MPEG-4 VIDEO CODEC |
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* - Console based test application - |
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* |
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* Copyright(C) 2002 Christoph Lampert |
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* |
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* This program is free software; you can redistribute it and/or modify |
* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
* it under the terms of the GNU General Public License as published by |
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* |
* |
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* You should have received a copy of the GNU General Public License |
* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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*************************************************************************/ |
* $Id: xvid_stat.c,v 1.10 2002-09-21 09:38:17 edgomez Exp $ |
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/************************************************************************ |
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* |
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* PSNR and Speed test routine for XviD using the XviD-API |
****************************************************************************/ |
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* (C) Christoph Lampert, 2002/04/13 |
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/***************************************************************************** |
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* Application notes : |
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* |
* |
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* A sequence of YUV pics in PGM file format is encoded and decoded |
* A sequence of YUV pics in PGM file format is encoded and decoded |
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* The speed is measured and PSNR of decoded picture is calculated. |
* The speed is measured and PSNR of decoded picture is calculated. |
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* |
* |
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* The program is plain C and needs no libraries except for libxvidcore, |
* The program is plain C and needs no libraries except for libxvidcore, |
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* and maths-lib ,so with UN*X you simply compile by |
* and maths-lib. |
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* |
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* gcc xvid_stat.c -lxvidcore -lm -o xvid_stat |
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* |
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* Run without or with illegal parameters, then PGM input input is read |
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* from stdin. |
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* |
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* Parameters are: xvid_stat XDIM YDIM QUALITY BITRATE/QUANTIZER FRAMERATE |
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* |
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* if XDIM or YDIM are illegal (e.g. 0), they are ignored and input is |
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* considered to be PGM. Otherwise (X and Y both greater than 0) raw YUV |
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* is expected, as e.g. the standard MPEG test-files, like "foreman" |
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* |
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* 0 <= QUALITY <= 6 (default 5) |
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* |
* |
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* BITRATE is in kbps (default 900), |
* Usage : xvid_stat [OPTIONS] |
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* if BITRATE<32, then value is taken is fixed QUANTIZER |
* Options : |
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* -w integer : frame width ([1.2048]) |
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* -h integer : frame height ([1.2048]) |
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* -b integer : target bitrate (>0 | default=900kbit) |
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* -f float : target framerate (>0) |
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* -i string : input filename (default=stdin) |
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* -t integer : input data type (yuv=0, pgm=1) |
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* -n integer : number of frames to encode |
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* -q integer : quality ([0..5]) |
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* -d boolean : save decoder output (0 False*, !=0 True) |
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* -m boolean : save mpeg4 raw stream (0 False*, !=0 True) |
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* -h, -help : prints this help message |
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* -quant integer : fixed quantizer (disables -b setting) |
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* (* means default) |
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* |
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* An input file named "stdin" is treated as standard input stream. |
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* |
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* |
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* PGM input must be in a very specific format, basically it pgm file must |
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* contain Y plane first just like usual P5 pgm files, and then U and V |
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* planes are stored just after Y plane so y dimension is y*3/2 in reality |
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* |
* |
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* FRAMERATE is a float (with or without decimal dot), default is 25.00 |
* See read_pgmheader for more details. |
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* |
* |
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* input/output and m4v-output is saved, if corresponding flags are set |
* Such a PGM file can be generated from MPEG2 by # mpeg2dec -o pgmpipe |
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* |
* |
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* PGM input must in a very specific format, see read_pgmheader |
****************************************************************************/ |
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* it can be generated e.g. from MPEG2 by mpeg2dec -o pgmpipe |
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* |
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************************************************************************/ |
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/************************************************************************ |
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* |
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* For EXAMPLES how to use this, see the seperate file xvid_stat.examples |
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* |
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************************************************************************/ |
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#include <stdio.h> |
#include <stdio.h> |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <math.h> // needed for log10 |
#include <string.h> |
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#include <sys/time.h> // only needed for gettimeofday |
#include <math.h> |
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#include <time.h> |
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#include "../src/xvid.h" |
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/**************************************************************************** |
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* Prototypes |
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***************************************************************************/ |
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/* Prints program usage message */ |
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static void usage(); |
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/* Statistical functions */ |
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static double msecond(); |
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static double absdistq(int x, int y, |
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unsigned char* buf1, int stride1, |
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unsigned char* buf2, int stride2); |
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static double PSNR(int x, int y, |
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unsigned char* buf1, int stride1, |
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unsigned char* buf2, int stride2); |
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/* PGM related functions */ |
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static int read_pgmheader(FILE* handle); |
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static int read_pgmdata(FILE* handle, unsigned char *image); |
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static int read_yuvdata(FILE* handle, unsigned char *image); |
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static int write_pgm(char *filename, unsigned char *image); |
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/* Encoder related functions */ |
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static int enc_init(int use_assembler); |
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static int enc_stop(); |
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static int enc_main(unsigned char* image, unsigned char* bitstream, |
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int *streamlength, int* frametype); |
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/* Decoder related functions */ |
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static int dec_stop(); |
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static int dec_main(unsigned char *m4v_buffer, unsigned char *out_buffer, |
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int m4v_size); |
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static int dec_init(int use_assembler); |
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/***************************************************************************** |
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* Quality presets |
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****************************************************************************/ |
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#include "xvid.h" /* comes with XviD */ |
static int const motion_presets[7] = { |
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int motion_presets[7] = { |
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0, // Q 0 |
0, // Q 0 |
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PMV_EARLYSTOP16, // Q 1 |
PMV_EARLYSTOP16, // Q 1 |
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PMV_EARLYSTOP16, // Q 2 |
PMV_EARLYSTOP16, // Q 2 |
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PMV_EARLYSTOP16 | PMV_HALFPELREFINE16, // Q 3 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16, // Q 3 |
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PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8, // Q 4 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16, // Q 4 |
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PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8 // Q 5 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8 | // Q 5 |
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| PMV_HALFPELREFINE8, |
PMV_HALFPELREFINE8, |
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PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 // Q 6 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 | // Q 6 |
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| PMV_USESQUARES16 | PMV_EARLYSTOP8 | PMV_HALFPELREFINE8 |
PMV_USESQUARES16 | PMV_EARLYSTOP8 | PMV_HALFPELREFINE8 |
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}; |
}; |
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int general_presets[7] = { |
static int const general_presets[7] = { |
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XVID_H263QUANT, /* or use XVID_MPEGQUANT */ // Q 0 |
XVID_H263QUANT, // Q 0 |
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XVID_H263QUANT, // Q 1 |
XVID_MPEGQUANT, // Q 1 |
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XVID_H263QUANT, // Q 2 |
XVID_H263QUANT, // Q 2 |
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XVID_H263QUANT | XVID_HALFPEL, // Q 3 |
XVID_H263QUANT | XVID_HALFPEL, // Q 3 |
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XVID_H263QUANT | XVID_HALFPEL | XVID_INTER4V, // Q 4 |
XVID_H263QUANT | XVID_HALFPEL | XVID_INTER4V, // Q 4 |
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XVID_H263QUANT | XVID_HALFPEL | XVID_INTER4V, // Q 5 |
XVID_H263QUANT | XVID_HALFPEL | XVID_INTER4V, // Q 5 |
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XVID_H263QUANT |XVID_HALFPEL | XVID_INTER4V }; // Q 6 |
XVID_H263QUANT | XVID_HALFPEL | XVID_INTER4V // Q 6 |
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}; |
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/* my default values for encoding */ |
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int ARG_BITRATE=900; |
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int ARG_QUANTI=0; |
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int ARG_QUALITY =6; |
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int ARG_MINQUANT=1; |
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int ARG_MAXQUANT=31; |
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float ARG_FRAMERATE=25.00; |
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/***************************************************************************** |
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* Command line global variables |
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****************************************************************************/ |
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/* Maximum number of frames to encode */ |
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#define ABS_MAXFRAMENR 9999 |
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static int ARG_BITRATE = 900; |
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static int ARG_QUANTI = 0; |
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static int ARG_QUALITY = 6; |
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static int ARG_MINQUANT = 1; |
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static int ARG_MAXQUANT = 31; |
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static float ARG_FRAMERATE = 25.00f; |
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static int ARG_MAXFRAMENR = ABS_MAXFRAMENR; |
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static char *ARG_INPUTFILE = NULL; |
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static int ARG_INPUTTYPE = 0; |
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static int ARG_SAVEDECOUTPUT = 0; |
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static int ARG_SAVEMPEGSTREAM = 0; |
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static int XDIM = 0; |
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static int YDIM = 0; |
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#define IMAGE_SIZE(x,y) ((x)*(y)*3/2) |
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#define MAX(A,B) ( ((A)>(B)) ? (A) : (B) ) |
#define MAX(A,B) ( ((A)>(B)) ? (A) : (B) ) |
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#define SMALL_EPS 1e-10 |
#define SMALL_EPS 1e-10 |
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/**************************************************************************** |
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* Nasty global vars ;-) |
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***************************************************************************/ |
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static int i,filenr = 0; |
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static int save_ref_flag = 0; |
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/* the path where to save output */ |
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static char filepath[256] = "./"; |
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/* Internal structures (handles) for encoding and decoding */ |
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static void *enc_handle = NULL; |
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static void *dec_handle = NULL; |
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/***************************************************************************** |
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* Main program |
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****************************************************************************/ |
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/* these are global variables. Not very elegant, but easy, and this is an easy program */ |
int main(int argc, char *argv[]) |
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{ |
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int XDIM=0; |
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int YDIM=0; // will be set when reading first image |
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int i,filenr = 0; |
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int save_m4v_flag = 0; // save MPEG4-bytestream? |
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int save_dec_flag = 1; // save decompressed bytestream? |
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int save_ref_flag = 0; // |
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int pgmflag = 0; // a flag, if input is in PGM format, overwritten in init-phase |
unsigned char *divx_buffer = NULL; |
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char filepath[256] = "./"; // the path where to save output |
unsigned char *in_buffer = NULL; |
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unsigned char *out_buffer = NULL; |
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#define MAXFILENR 9999 // max number of frames (this should be made into an option!) |
double enctime,dectime; |
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double totalenctime=0.; |
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double totaldectime=0.; |
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void *enc_handle = NULL; // internal structures (handles) for encoding |
long totalsize=0; |
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void *dec_handle = NULL; // and decoding |
int status; |
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int m4v_size; |
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int frame_type[ABS_MAXFRAMENR]; |
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int Iframes=0, Pframes=0, use_assembler=0; |
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double framepsnr[ABS_MAXFRAMENR]; |
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/*********************************************************************/ |
double Ipsnr=0.,Imaxpsnr=0.,Iminpsnr=999.,Ivarpsnr=0.; |
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/* "statistical" functions */ |
double Ppsnr=0.,Pmaxpsnr=0.,Pminpsnr=999.,Pvarpsnr=0.; |
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/* */ |
double Bpsnr=0.,Bmaxpsnr=0.,Bminpsnr=999.,Bvarpsnr=0.; |
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/* these are not needed for encoding or decoding, but for measuring */ |
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/* time and quality, there in nothing specific to XviD in these */ |
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/* */ |
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/*********************************************************************/ |
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double msecond() |
char filename[256]; |
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/* return the current time in seconds(!) */ |
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{ |
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struct timeval tv; |
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gettimeofday(&tv, 0); |
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return tv.tv_sec + tv.tv_usec * 1.0e-6; |
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} |
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FILE *filehandle; |
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FILE *in_file = stdin; |
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printf("xvid_stat - XviD core library test program "); |
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printf("written by Christoph Lampert 2002\n\n"); |
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double absdistq(int x,int y, unsigned char* buf1, int stride1, unsigned char* buf2, int stride2) |
/***************************************************************************** |
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/* returns the sum of squared distances (SSD) between two images of dimensions x times y */ |
* Command line parsing |
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{ |
****************************************************************************/ |
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double dist=0.; |
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int i,j,val; |
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for (i=0;i<y;i++) |
for (i=1; i< argc; i++) { |
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{ |
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val=0; |
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for (j=0;j<x;j++) |
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val+= ((int)buf1[j]-(int)buf2[j])*((int)buf1[j]-(int)buf2[j]); |
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dist += (double)val; |
if (strcmp("-asm", argv[i]) == 0 ) { |
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buf1 += stride1; |
use_assembler = 1; |
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buf2 += stride2; |
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} |
} |
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return dist/(x*y); |
else if (strcmp("-w", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
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XDIM = atoi(argv[i]); |
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} |
} |
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else if (strcmp("-h", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
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double PSNR(int x,int y, unsigned char* buf1, int stride1, unsigned char* buf2, int stride2 ) |
YDIM = atoi(argv[i]); |
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/* return the PSNR between to images */ |
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/* this is a logarithmic measure for "quality" from the world of signal processing */ |
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/* if you don't know what it is, simply accept that higher values are better */ |
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{ |
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return 10*(log10(255*255)-log10( absdistq(x, y, buf1, stride1, buf2, stride2) )); |
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} |
} |
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else if (strcmp("-b", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
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/*********************************************************************/ |
ARG_BITRATE = atoi(argv[i]); |
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/* input and output functions */ |
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/* */ |
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/* the are small and simple routines to read and write PGM and YUV */ |
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/* image. It's just for convenience, again nothing specific to XviD */ |
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/* */ |
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/*********************************************************************/ |
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int read_pgmheader(FILE* handle) |
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{ |
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int bytes,xsize,ysize,depth; |
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char dummy[2]; |
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bytes = fread(dummy,1,2,handle); |
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if ( (bytes < 2) || (dummy[0] != 'P') || (dummy[1] != '5' )) |
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return 1; |
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fscanf(handle,"%d %d %d",&xsize,&ysize,&depth); |
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if ( (xsize > 1440) || (ysize > 2880 ) || (depth != 255) ) |
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{ |
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fprintf(stderr,"%d %d %d\n",xsize,ysize,depth); |
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return 2; |
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} |
} |
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if ( (XDIM==0) || (YDIM==0) ) |
else if (strcmp("-q", argv[i]) == 0 && i < argc - 1 ) { |
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{ XDIM=xsize; |
i++; |
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YDIM=ysize; |
ARG_QUALITY = atoi(argv[i]); |
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} |
} |
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else if (strcmp("-f", argv[i]) == 0 && i < argc - 1 ) { |
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return 0; |
i++; |
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ARG_FRAMERATE = (float)atof(argv[i]); |
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} |
} |
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else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { |
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int read_pgmdata(FILE* handle, unsigned char *image) |
i++; |
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{ |
ARG_INPUTFILE = argv[i]; |
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int i,status; |
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char dummy; |
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unsigned char* buff1_ptr2 = image + XDIM*YDIM; |
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unsigned char* buff1_ptr3 = image + XDIM*YDIM + XDIM/2*YDIM/2; |
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fread(image,XDIM*YDIM,1,stdin); // read Y component of picture |
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for (i=0;i<YDIM/2;i++) |
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{ |
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fread(buff1_ptr2,XDIM/2,1,stdin); // read U |
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buff1_ptr2 += XDIM/2; |
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fread(buff1_ptr3,XDIM/2,1,stdin); // read V |
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buff1_ptr3 += XDIM/2; |
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} |
} |
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fread(&dummy,1,1,handle); // I don't know why, but this seems needed |
else if (strcmp("-t", argv[i]) == 0 && i < argc - 1 ) { |
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return 0; |
i++; |
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ARG_INPUTTYPE = atoi(argv[i]); |
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} |
} |
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else if(strcmp("-n", argv[i]) == 0 && i < argc - 1 ) { |
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int read_yuvdata(FILE* handle, unsigned char *image) |
i++; |
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{ int i; |
ARG_MAXFRAMENR = atoi(argv[i]); |
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char dummy; |
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unsigned char* buff1_ptr2 = image + XDIM*YDIM; |
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unsigned char* buff1_ptr3 = image + XDIM*YDIM + XDIM/2*YDIM/2; |
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if (fread(image,XDIM,YDIM*3/2,stdin) != YDIM*3/2) |
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return 1; |
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else |
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return 0; |
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} |
} |
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else if (strcmp("-quant", argv[i]) == 0 && i < argc - 1 ) { |
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int write_pgm(char *filename, unsigned char *image) |
i++; |
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{ |
ARG_QUANTI = atoi(argv[i]); |
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FILE *filehandle; |
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filehandle=fopen(filename,"wb"); |
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if (filehandle) |
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{ |
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fprintf(filehandle,"P5\n\n"); // |
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fprintf(filehandle,"%d %d 255\n",XDIM,YDIM*3/2); |
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fwrite(image,XDIM,YDIM*3/2,filehandle); |
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fclose(filehandle); |
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return 0; |
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} |
} |
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else |
else if (strcmp("-d", argv[i]) == 0 && i < argc - 1 ) { |
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return 1; |
i++; |
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ARG_SAVEDECOUTPUT = atoi(argv[i]); |
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} |
} |
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else if (strcmp("-m", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
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ARG_SAVEMPEGSTREAM = atoi(argv[i]); |
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/*********************************************************************/ |
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/* Routines for encoding: init encoder, frame step, release encoder */ |
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/*********************************************************************/ |
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#define FRAMERATE_INCR 1001 |
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int enc_init() |
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{ /* initialize encoder for first use, pass all needed parameters to the codec */ |
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int xerr; |
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XVID_INIT_PARAM xinit; |
|
|
XVID_ENC_PARAM xparam; |
|
|
|
|
|
xinit.cpu_flags = XVID_CPU_FORCE; |
|
|
xvid_init(NULL, 0, &xinit, NULL); |
|
|
|
|
|
xparam.width = XDIM; |
|
|
xparam.height = YDIM; |
|
|
if ((ARG_FRAMERATE - (int)ARG_FRAMERATE) < SMALL_EPS) |
|
|
{ |
|
|
xparam.fincr = 1; |
|
|
xparam.fbase = (int)ARG_FRAMERATE; |
|
259 |
} |
} |
260 |
else |
else if (strcmp("-h", argv[i]) == 0 || strcmp("-help", argv[i])) { |
261 |
{ |
usage(); |
262 |
xparam.fincr = FRAMERATE_INCR; |
return(0); |
|
xparam.fbase = (int)(FRAMERATE_INCR * ARG_FRAMERATE); |
|
263 |
} |
} |
264 |
xparam.bitrate = ARG_BITRATE*1000; |
else { |
265 |
xparam.min_quantizer = 1; |
usage(); |
266 |
xparam.max_quantizer = 31; |
exit(-1); |
|
xparam.max_key_interval = (int)ARG_FRAMERATE*10; |
|
|
xparam.rc_buffersize = 2; |
|
|
/* I use a small value here, since will not encode whole movies, but short clips */ |
|
|
|
|
|
xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xparam, NULL); |
|
|
enc_handle=xparam.handle; |
|
|
|
|
|
return xerr; |
|
267 |
} |
} |
268 |
|
|
|
int enc_stop() |
|
|
{ int xerr; |
|
|
|
|
|
xerr = xvid_encore(enc_handle, XVID_ENC_DESTROY, NULL, NULL); |
|
|
return xerr; |
|
269 |
} |
} |
270 |
|
|
271 |
int enc_main(unsigned char* image, unsigned char* bitstream, int *streamlength, int* frametype) |
/***************************************************************************** |
272 |
{ int xerr; |
* Arguments checking |
273 |
|
****************************************************************************/ |
|
XVID_ENC_FRAME xframe; |
|
|
XVID_ENC_STATS xstats; |
|
|
|
|
|
xframe.bitstream = bitstream; |
|
|
xframe.length = -1; // this is written by the routine |
|
|
|
|
|
xframe.image = image; |
|
|
xframe.colorspace = XVID_CSP_YV12; // defined in <xvid.h> |
|
|
|
|
|
xframe.intra = -1; // let the codec decide between I-frame (1) and P-frame (0) |
|
|
|
|
|
xframe.quant = ARG_QUANTI; // is quant != 0, use a fixed quant (and ignore bitrate) |
|
|
|
|
|
xframe.motion = motion_presets[ARG_QUALITY]; |
|
|
xframe.general = general_presets[ARG_QUALITY]; |
|
|
xframe.quant_intra_matrix = xframe.quant_inter_matrix = NULL; |
|
|
|
|
|
xerr = xvid_encore(enc_handle, XVID_ENC_ENCODE, &xframe, &xstats); |
|
|
|
|
|
/* enc_result->is_key_frame = xframe.intra; |
|
|
enc_result->quantizer = xframe.quant; |
|
|
enc_result->total_bits = xframe.length * 8; |
|
|
enc_result->motion_bits = xstats.hlength * 8; |
|
|
enc_result->texture_bits = enc_result->total_bits - enc_result->motion_bits; |
|
|
*/ |
|
|
|
|
|
/* This is statictical data, e.g. for 2-pass. |
|
|
If you are not interested in any of this, you can use NULL instead of &xstats |
|
|
*/ |
|
|
*frametype = xframe.intra; |
|
|
*streamlength = xframe.length; |
|
274 |
|
|
275 |
return xerr; |
if (XDIM <= 0 || XDIM >= 2048 || YDIM <=0 || YDIM >= 2048 ) { |
276 |
|
fprintf(stderr, |
277 |
|
"Trying to retreive width and height from PGM header\n", |
278 |
|
XDIM, |
279 |
|
YDIM); |
280 |
|
ARG_INPUTTYPE = 1; /* pgm */ |
281 |
} |
} |
282 |
|
|
283 |
|
if ( ARG_QUALITY < 0 || ARG_QUALITY > 6) { |
284 |
/*********************************************************************/ |
fprintf(stderr,"Wrong Quality\n"); |
285 |
/* Routines for decoding: init encoder, frame step, release encoder */ |
return -1; |
|
/*********************************************************************/ |
|
|
|
|
|
int dec_init() /* init decoder before first run */ |
|
|
{ |
|
|
int xerr; |
|
|
|
|
|
XVID_INIT_PARAM xinit; |
|
|
XVID_DEC_PARAM xparam; |
|
|
|
|
|
xinit.cpu_flags = 0; |
|
|
xvid_init(NULL, 0, &xinit, NULL); |
|
|
xparam.width = XDIM; |
|
|
xparam.height = YDIM; |
|
|
|
|
|
xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); |
|
|
dec_handle = xparam.handle; |
|
|
|
|
|
return xerr; |
|
286 |
} |
} |
287 |
|
|
288 |
int dec_main(unsigned char *m4v_buffer, unsigned char *out_buffer, int m4v_size) |
if ( ARG_BITRATE <= 0 && ARG_QUANTI == 0) { |
289 |
{ /* decode one frame */ |
fprintf(stderr,"Wrong Bitrate\n"); |
290 |
|
return -1; |
|
int xerr; |
|
|
XVID_DEC_FRAME xframe; |
|
|
|
|
|
xframe.bitstream = m4v_buffer; |
|
|
xframe.length = m4v_size; |
|
|
xframe.image = out_buffer; |
|
|
xframe.stride = XDIM; |
|
|
xframe.colorspace = XVID_CSP_YV12; // XVID_CSP_USER is fastest (no memcopy involved) |
|
|
|
|
|
xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, NULL); |
|
|
|
|
|
return xerr; |
|
291 |
} |
} |
292 |
|
|
293 |
int dec_stop() /* close decoder to release resources */ |
if ( ARG_FRAMERATE <= 0) { |
294 |
{ |
fprintf(stderr,"Wrong Fraterate %s \n",argv[5]); |
295 |
int xerr; |
return -1; |
|
xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
|
|
|
|
|
return xerr; |
|
296 |
} |
} |
297 |
|
|
298 |
|
if ( ARG_MAXFRAMENR <= 0) { |
299 |
/*********************************************************************/ |
fprintf(stderr,"Wrong number of frames\n"); |
300 |
/* Main program */ |
return -1; |
|
/*********************************************************************/ |
|
|
|
|
|
int main(int argc, char *argv[]) |
|
|
{ |
|
|
unsigned char *divx_buffer = NULL; |
|
|
unsigned char *in_buffer = NULL; |
|
|
unsigned char *out_buffer = NULL; |
|
|
|
|
|
double enctime,dectime; |
|
|
double totalenctime=0.; |
|
|
double totaldectime=0.; |
|
|
|
|
|
long totalsize=0; |
|
|
int status; |
|
|
|
|
|
int m4v_size; |
|
|
int frame_type[MAXFILENR]; |
|
|
int Iframes=0, Pframes=0, Bframes=0; |
|
|
double framepsnr[MAXFILENR]; |
|
|
|
|
|
double Ipsnr=0.,Imaxpsnr=0.,Iminpsnr=999.,Ivarpsnr=0.; |
|
|
double Ppsnr=0.,Pmaxpsnr=0.,Pminpsnr=999.,Pvarpsnr=0.; |
|
|
double Bpsnr=0.,Bmaxpsnr=0.,Bminpsnr=999.,Bvarpsnr=0.; |
|
|
|
|
|
char filename[256]; |
|
|
|
|
|
FILE *filehandle; |
|
|
|
|
|
/* read YUV in pgm format from stdin */ |
|
|
if (!pgmflag) |
|
|
{ |
|
|
pgmflag = 1; |
|
|
|
|
|
if (argc>=3) |
|
|
{ XDIM = atoi(argv[1]); |
|
|
YDIM = atoi(argv[2]); |
|
|
if ( (XDIM <= 0) || (XDIM >= 2048) || (YDIM <=0) || (YDIM >= 2048) ) |
|
|
{ fprintf(stderr,"Wrong frames size %d %d, trying PGM \n",XDIM, YDIM); |
|
|
} |
|
|
else |
|
|
{ |
|
|
YDIM = YDIM*3/2; /* for YUV */ |
|
|
pgmflag = 0; |
|
|
} |
|
|
} |
|
301 |
} |
} |
302 |
|
|
303 |
if (pgmflag) |
if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { |
304 |
{ if (read_pgmheader(stdin)) |
in_file = stdin; |
|
{ |
|
|
printf("Wrong input format, I want YUV encapsulated in PGM\n"); |
|
|
return 1; |
|
|
} |
|
305 |
} |
} |
306 |
if (argc>=4) |
else { |
307 |
{ ARG_QUALITY = atoi(argv[3]); |
|
308 |
if ( (ARG_QUALITY < 0) || (ARG_QUALITY > 6) ) |
in_file = fopen(ARG_INPUTFILE, "rb"); |
309 |
{ fprintf(stderr,"Wrong Quality\n"); return -1; } |
if (in_file == NULL) { |
310 |
else |
fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); |
311 |
printf("Quality %d\n",ARG_QUALITY); |
return -1; |
312 |
} |
} |
|
if (argc>=5) |
|
|
{ ARG_BITRATE = atoi(argv[4]); |
|
|
if ( (ARG_BITRATE <= 0) ) |
|
|
{ fprintf(stderr,"Wrong Bitrate\n"); return -1; } |
|
|
if ( (ARG_BITRATE <= 32) ) |
|
|
{ ARG_QUANTI = ARG_BITRATE; |
|
|
ARG_BITRATE=0; |
|
|
printf("Quantizer %d\n",ARG_QUANTI); |
|
313 |
} |
} |
314 |
else |
|
315 |
printf("Bitrate %d kbps\n",ARG_BITRATE); |
if (ARG_INPUTTYPE) { |
316 |
|
if (read_pgmheader(in_file)) { |
317 |
|
fprintf(stderr, "Wrong input format, I want YUV encapsulated in PGM\n"); |
318 |
|
return -1; |
319 |
} |
} |
|
if (argc>=6) |
|
|
{ ARG_FRAMERATE = (float)atof(argv[5]); |
|
|
if ( (ARG_FRAMERATE <= 0) ) |
|
|
{ fprintf(stderr,"Wrong Fraterate %s \n",argv[5]); return -1; } |
|
|
printf("Framerate %6.3f fps\n",ARG_FRAMERATE); |
|
320 |
} |
} |
321 |
|
|
322 |
/* now we know the sizes, so allocate memory */ |
/* now we know the sizes, so allocate memory */ |
323 |
|
|
324 |
in_buffer = (unsigned char *) malloc(XDIM*YDIM); |
in_buffer = (unsigned char *) malloc(IMAGE_SIZE(XDIM,YDIM)); |
325 |
if (!in_buffer) |
if (!in_buffer) |
326 |
goto free_all_memory; // goto is one of the most underestimated instructions in C !!! |
goto free_all_memory; |
327 |
|
|
328 |
divx_buffer = (unsigned char *) malloc(XDIM*YDIM*2); // this should really be enough memory! |
/* this should really be enough memory ! */ |
329 |
|
divx_buffer = (unsigned char *) malloc(IMAGE_SIZE(XDIM,YDIM)*2); |
330 |
if (!divx_buffer) |
if (!divx_buffer) |
331 |
goto free_all_memory; |
goto free_all_memory; |
332 |
|
|
333 |
YDIM = YDIM*2/3; // PGM is YUV 4:2:0 format, so real image height is *2/3 of PGM picture |
out_buffer = (unsigned char *) malloc(IMAGE_SIZE(XDIM,YDIM)*4); |
|
|
|
|
out_buffer = (unsigned char *) malloc(XDIM*YDIM*4); |
|
334 |
if (!out_buffer) |
if (!out_buffer) |
335 |
goto free_all_memory; |
goto free_all_memory; |
336 |
|
|
337 |
|
|
338 |
/*********************************************************************/ |
/***************************************************************************** |
339 |
/* XviD PART Start */ |
* XviD PART Start |
340 |
/*********************************************************************/ |
****************************************************************************/ |
341 |
|
|
342 |
|
|
343 |
status = enc_init(); |
status = enc_init(use_assembler); |
344 |
if (status) |
if (status) |
345 |
{ |
{ |
346 |
printf("Encore INIT problem, return value %d\n", status); |
fprintf(stderr, "Encore INIT problem, return value %d\n", status); |
347 |
goto release_all; |
goto release_all; |
348 |
} |
} |
349 |
|
|
350 |
status = dec_init(); |
status = dec_init(use_assembler); |
351 |
if (status) |
if (status) |
352 |
{ |
{ |
353 |
printf("Decore INIT problem, return value %d\n", status); |
fprintf(stderr, "Decore INIT problem, return value %d\n", status); |
354 |
goto release_all; |
goto release_all; |
355 |
} |
} |
356 |
|
|
357 |
|
|
358 |
/*********************************************************************/ |
/***************************************************************************** |
359 |
/* Main loop */ |
* Main loop |
360 |
/*********************************************************************/ |
****************************************************************************/ |
361 |
|
|
362 |
do |
do { |
363 |
{ |
|
364 |
if (pgmflag) |
if (ARG_INPUTTYPE) |
365 |
status = read_pgmdata(stdin, in_buffer); // read PGM data (YUV-format) |
status = read_pgmdata(in_file, in_buffer); // read PGM data (YUV-format) |
366 |
else |
else |
367 |
status = read_yuvdata(stdin, in_buffer); // read raw data (YUV-format) |
status = read_yuvdata(in_file, in_buffer); // read raw data (YUV-format) |
368 |
|
|
369 |
if (status) |
if (status) |
370 |
{ |
{ |
371 |
// Couldn't read image, most likely end-of-file |
/* Couldn't read image, most likely end-of-file */ |
372 |
continue; |
continue; |
373 |
} |
} |
374 |
|
|
380 |
} |
} |
381 |
|
|
382 |
|
|
383 |
/*********************************************************************/ |
/***************************************************************************** |
384 |
/* analyse this frame before encoding */ |
* Analyse this frame before encoding |
385 |
/*********************************************************************/ |
****************************************************************************/ |
386 |
|
|
387 |
// nothing is done here at the moment, but you could e.g. create |
/* |
388 |
// histograms or measure entropy or apply preprocessing filters... |
* nothing is done here at the moment, but you could e.g. create |
389 |
|
* histograms or measure entropy or apply preprocessing filters... |
390 |
/*********************************************************************/ |
*/ |
391 |
/* encode and decode this frame */ |
|
392 |
/*********************************************************************/ |
/***************************************************************************** |
393 |
|
* Encode and decode this frame |
394 |
|
****************************************************************************/ |
395 |
|
|
396 |
enctime = -msecond(); |
enctime = msecond(); |
397 |
status = enc_main(in_buffer, divx_buffer, &m4v_size, &frame_type[filenr]); |
status = enc_main(in_buffer, divx_buffer, &m4v_size, &frame_type[filenr]); |
398 |
enctime += msecond(); |
enctime = msecond() - enctime; |
399 |
|
|
400 |
totalenctime += enctime; |
totalenctime += enctime; |
401 |
totalsize += m4v_size; |
totalsize += m4v_size; |
402 |
|
|
403 |
printf("Frame %5d: intra %d, enctime =%6.1f ms length=%7d bytes ", |
printf("Frame %5d: intra %1d, enctime=%6.1f ms, size=%6d bytes ", |
404 |
filenr, frame_type[filenr], enctime*1000, m4v_size); |
(int)filenr, (int)frame_type[filenr], (float)enctime, (int)m4v_size); |
405 |
|
|
406 |
if (save_m4v_flag) |
if (ARG_SAVEMPEGSTREAM) |
407 |
{ |
{ |
408 |
sprintf(filename, "%sframe%05d.m4v", filepath, filenr); |
sprintf(filename, "%sframe%05d.m4v", filepath, filenr); |
409 |
filehandle = fopen(filename, "wb"); |
filehandle = fopen(filename, "wb"); |
411 |
fclose(filehandle); |
fclose(filehandle); |
412 |
} |
} |
413 |
|
|
414 |
dectime = -msecond(); |
dectime = msecond(); |
415 |
status = dec_main(divx_buffer, out_buffer, m4v_size); |
status = dec_main(divx_buffer, out_buffer, m4v_size); |
416 |
dectime += msecond(); |
dectime = msecond() - dectime; |
417 |
|
|
418 |
totaldectime += dectime; |
totaldectime += dectime; |
419 |
|
|
420 |
|
|
421 |
/*********************************************************************/ |
/***************************************************************************** |
422 |
/* analyse the decoded frame and compare to original */ |
* Analyse the decoded frame and compare to original |
423 |
/*********************************************************************/ |
****************************************************************************/ |
424 |
|
|
425 |
framepsnr[filenr] = PSNR(XDIM,YDIM, in_buffer, XDIM, out_buffer, XDIM ); |
framepsnr[filenr] = PSNR(XDIM,YDIM*3/2, in_buffer, XDIM, out_buffer, XDIM); |
426 |
|
|
427 |
printf("dectime =%6.1f ms PSNR %5.2f\n",dectime*1000, framepsnr[filenr]); |
printf("dectime =%6.1f ms PSNR %5.2f\n",dectime, framepsnr[filenr]); |
428 |
|
|
429 |
if (save_dec_flag) |
if (ARG_SAVEDECOUTPUT) |
430 |
{ |
{ |
431 |
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
432 |
write_pgm(filename,out_buffer); |
write_pgm(filename,out_buffer); |
433 |
} |
} |
434 |
|
|
435 |
if (pgmflag) |
/* Read the header if it's pgm stream */ |
436 |
status = read_pgmheader(stdin); // because if this was the last PGM, stop now |
if (ARG_INPUTTYPE) |
437 |
|
status = read_pgmheader(in_file); |
438 |
|
|
439 |
filenr++; |
filenr++; |
440 |
|
|
441 |
} while ( (!status) && (filenr<MAXFILENR) ); |
} while ( (!status) && (filenr<ARG_MAXFRAMENR) ); |
442 |
|
|
443 |
|
|
444 |
|
|
445 |
/*********************************************************************/ |
/***************************************************************************** |
446 |
/* calculate totals and averages for output, print results */ |
* Calculate totals and averages for output, print results |
447 |
/*********************************************************************/ |
****************************************************************************/ |
448 |
|
|
449 |
totalsize /= filenr; |
totalsize /= filenr; |
450 |
totalenctime /= filenr; |
totalenctime /= filenr; |
462 |
Iframes++; |
Iframes++; |
463 |
Ipsnr += framepsnr[i]; |
Ipsnr += framepsnr[i]; |
464 |
break; |
break; |
|
case 2: |
|
465 |
default: |
default: |
|
Bframes++; |
|
|
Bpsnr += framepsnr[i]; |
|
466 |
break; |
break; |
467 |
} |
} |
468 |
} |
} |
471 |
Ppsnr /= Pframes; |
Ppsnr /= Pframes; |
472 |
if (Iframes) |
if (Iframes) |
473 |
Ipsnr /= Iframes; |
Ipsnr /= Iframes; |
|
if (Bframes) |
|
|
Bpsnr /= Bframes; |
|
|
|
|
474 |
|
|
475 |
for (i=0;i<filenr;i++) // calculate statistics for every frametype: P,I (and B) |
/* calculate statistics for every frametype: P,I */ |
476 |
|
for (i=0;i<filenr;i++) |
477 |
{ |
{ |
478 |
switch (frame_type[i]) |
switch (frame_type[i]) |
479 |
{ |
{ |
490 |
if (framepsnr[i] < Pminpsnr) |
if (framepsnr[i] < Pminpsnr) |
491 |
Iminpsnr = framepsnr[i]; |
Iminpsnr = framepsnr[i]; |
492 |
Ivarpsnr += (framepsnr[i] - Ipsnr)*(framepsnr[i] - Ipsnr) /Iframes; |
Ivarpsnr += (framepsnr[i] - Ipsnr)*(framepsnr[i] - Ipsnr) /Iframes; |
493 |
break; |
default: |
|
case 2: |
|
|
if (framepsnr[i] > Bmaxpsnr) |
|
|
Bmaxpsnr = framepsnr[i]; |
|
|
if (framepsnr[i] < Pminpsnr) |
|
|
Bminpsnr = framepsnr[i]; |
|
|
Bvarpsnr += (framepsnr[i] - Bpsnr)*(framepsnr[i] - Bpsnr) /Bframes; |
|
494 |
break; |
break; |
495 |
} |
} |
496 |
} |
} |
497 |
|
|
498 |
|
/* Print all statistics */ |
499 |
printf("Avg. Q%1d %2s ",ARG_QUALITY, (ARG_QUANTI ? " q" : "br")); |
printf("Avg. Q%1d %2s ",ARG_QUALITY, (ARG_QUANTI ? " q" : "br")); |
500 |
printf("%04d ",MAX(ARG_QUANTI,ARG_BITRATE)); |
printf("%04d ",(ARG_QUANTI)?ARG_QUANTI:ARG_BITRATE); |
501 |
printf("(%.2f bpp) ", (double)ARG_BITRATE*1000/XDIM/YDIM/ARG_FRAMERATE); |
printf("(%.2f bpp) ", (double)ARG_BITRATE*1000/XDIM/YDIM/ARG_FRAMERATE); |
502 |
printf("size %6d ",totalsize); |
printf("size %6d ",totalsize); |
503 |
printf("(%4d kbps ",(int)(totalsize*8*ARG_FRAMERATE/1000)); |
printf("(%4d kbps ",(int)(totalsize*8*ARG_FRAMERATE/1000)); |
505 |
printf("enc: %6.1f fps, dec: %6.1f fps \n",1/totalenctime, 1/totaldectime); |
printf("enc: %6.1f fps, dec: %6.1f fps \n",1/totalenctime, 1/totaldectime); |
506 |
printf("PSNR P(%d): %5.2f ( %5.2f , %5.2f ; %5.4f ) ",Pframes,Ppsnr,Pminpsnr,Pmaxpsnr,sqrt(Pvarpsnr/filenr)); |
printf("PSNR P(%d): %5.2f ( %5.2f , %5.2f ; %5.4f ) ",Pframes,Ppsnr,Pminpsnr,Pmaxpsnr,sqrt(Pvarpsnr/filenr)); |
507 |
printf("I(%d): %5.2f ( %5.2f , %5.2f ; %5.4f ) ",Iframes,Ipsnr,Iminpsnr,Imaxpsnr,sqrt(Ivarpsnr/filenr)); |
printf("I(%d): %5.2f ( %5.2f , %5.2f ; %5.4f ) ",Iframes,Ipsnr,Iminpsnr,Imaxpsnr,sqrt(Ivarpsnr/filenr)); |
|
if (Bframes) |
|
|
printf("B(%d): %5.2f ( %5.2f , %5.2f ; %5.4f ) ",Bframes,Bpsnr,Bminpsnr,Bmaxpsnr,sqrt(Bvarpsnr/filenr)); |
|
508 |
printf("\n"); |
printf("\n"); |
509 |
|
|
510 |
/*********************************************************************/ |
/***************************************************************************** |
511 |
/* XviD PART Stop */ |
* XviD PART Stop |
512 |
/*********************************************************************/ |
****************************************************************************/ |
513 |
|
|
514 |
release_all: |
release_all: |
515 |
|
|
517 |
{ |
{ |
518 |
status = enc_stop(); |
status = enc_stop(); |
519 |
if (status) |
if (status) |
520 |
printf("Encore RELEASE problem return value %d\n", status); |
fprintf(stderr, "Encore RELEASE problem return value %d\n", status); |
521 |
} |
} |
522 |
|
|
523 |
if (dec_handle) |
if (dec_handle) |
524 |
{ |
{ |
525 |
status = dec_stop(); |
status = dec_stop(); |
526 |
if (status) |
if (status) |
527 |
printf("Decore RELEASE problem return value %d\n", status); |
fprintf(stderr, "Decore RELEASE problem return value %d\n", status); |
528 |
} |
} |
529 |
|
|
530 |
|
fclose(in_file); |
531 |
|
|
532 |
free_all_memory: |
free_all_memory: |
533 |
free(out_buffer); |
free(out_buffer); |
535 |
free(in_buffer); |
free(in_buffer); |
536 |
|
|
537 |
return 0; |
return 0; |
538 |
|
|
539 |
|
} |
540 |
|
|
541 |
|
/***************************************************************************** |
542 |
|
* "statistical" functions |
543 |
|
* |
544 |
|
* these are not needed for encoding or decoding, but for measuring |
545 |
|
* time and quality, there in nothing specific to XviD in these |
546 |
|
* |
547 |
|
*****************************************************************************/ |
548 |
|
|
549 |
|
|
550 |
|
|
551 |
|
/* Return time elapsed time in miliseconds since the program started */ |
552 |
|
static double msecond() |
553 |
|
{ |
554 |
|
clock_t clk; |
555 |
|
|
556 |
|
clk = clock(); |
557 |
|
|
558 |
|
return clk * 1000 / CLOCKS_PER_SEC; |
559 |
|
|
560 |
|
} |
561 |
|
|
562 |
|
|
563 |
|
/* |
564 |
|
* Returns the sum of squared distances (SSD) between two images of dimensions |
565 |
|
* x times y |
566 |
|
*/ |
567 |
|
static double absdistq(int x, int y, |
568 |
|
unsigned char* buf1, int stride1, |
569 |
|
unsigned char* buf2, int stride2) |
570 |
|
{ |
571 |
|
double dist=0.; |
572 |
|
int i,j,val; |
573 |
|
|
574 |
|
for (i=0;i<y;i++) |
575 |
|
{ |
576 |
|
val=0; |
577 |
|
for (j=0;j<x;j++) |
578 |
|
val+= ((int)buf1[j]-(int)buf2[j])*((int)buf1[j]-(int)buf2[j]); |
579 |
|
|
580 |
|
dist += (double)val; |
581 |
|
buf1 += stride1; |
582 |
|
buf2 += stride2; |
583 |
|
} |
584 |
|
return dist/(x*y); |
585 |
|
} |
586 |
|
|
587 |
|
|
588 |
|
/* |
589 |
|
* Returns the PSNR between to images. |
590 |
|
* |
591 |
|
* This is a common logarithmic measure for "quality" from the world of signal |
592 |
|
* processing if you don't know what it is, simply accept that higher values |
593 |
|
* are better. |
594 |
|
* |
595 |
|
* PSNR represents the ratio of useful signal over noise signal. In our case, |
596 |
|
* useful signal is refernce image, noise signal is the difference between |
597 |
|
* reference and decoded frame from encoded bitstream. |
598 |
|
* |
599 |
|
* The problem is this type of value is dependant of image source and so, is |
600 |
|
* not reliable as a common "quality" indicator. |
601 |
|
* So PSNR computes the ratio of maximum/noise. Maximum being set to 2^bpp/channel |
602 |
|
* This way, PSNR is not dependant anymore of image data type. |
603 |
|
* |
604 |
|
*/ |
605 |
|
static double PSNR(int x, int y, |
606 |
|
unsigned char* buf1, int stride1, |
607 |
|
unsigned char* buf2, int stride2) |
608 |
|
{ |
609 |
|
return 10*(log10(255*255)-log10( absdistq(x, y, buf1, stride1, buf2, stride2) )); |
610 |
|
} |
611 |
|
|
612 |
|
/***************************************************************************** |
613 |
|
* Usage message |
614 |
|
*****************************************************************************/ |
615 |
|
|
616 |
|
static void usage() |
617 |
|
{ |
618 |
|
|
619 |
|
fprintf(stderr, "Usage : xvid_stat [OPTIONS]\n"); |
620 |
|
fprintf(stderr, "Options :\n"); |
621 |
|
fprintf(stderr, " -w integer : frame width ([1.2048])\n"); |
622 |
|
fprintf(stderr, " -h integer : frame height ([1.2048])\n"); |
623 |
|
fprintf(stderr, " -b integer : target bitrate (>0 | default=900kbit)\n"); |
624 |
|
fprintf(stderr, " -f float : target framerate (>0)\n"); |
625 |
|
fprintf(stderr, " -i string : input filename (default=stdin)\n"); |
626 |
|
fprintf(stderr, " -t integer : input data type (yuv=0, pgm=1)\n"); |
627 |
|
fprintf(stderr, " -n integer : number of frames to encode\n"); |
628 |
|
fprintf(stderr, " -q integer : quality ([0..5])\n"); |
629 |
|
fprintf(stderr, " -d boolean : save decoder output (0 False*, !=0 True)\n"); |
630 |
|
fprintf(stderr, " -m boolean : save mpeg4 raw stream (0 False*, !=0 True)\n"); |
631 |
|
fprintf(stderr, " -h, -help : prints this help message\n"); |
632 |
|
fprintf(stderr, " -quant integer : fixed quantizer (disables -b setting)\n"); |
633 |
|
fprintf(stderr, " (* means default)\n"); |
634 |
|
|
635 |
|
} |
636 |
|
|
637 |
|
/***************************************************************************** |
638 |
|
* Input and output functions |
639 |
|
* |
640 |
|
* the are small and simple routines to read and write PGM and YUV |
641 |
|
* image. It's just for convenience, again nothing specific to XviD |
642 |
|
* |
643 |
|
*****************************************************************************/ |
644 |
|
|
645 |
|
static int read_pgmheader(FILE* handle) |
646 |
|
{ |
647 |
|
int bytes,xsize,ysize,depth; |
648 |
|
char dummy[2]; |
649 |
|
|
650 |
|
bytes = fread(dummy,1,2,handle); |
651 |
|
|
652 |
|
if ( (bytes < 2) || (dummy[0] != 'P') || (dummy[1] != '5' )) |
653 |
|
return 1; |
654 |
|
|
655 |
|
fscanf(handle,"%d %d %d",&xsize,&ysize,&depth); |
656 |
|
if ( (xsize > 1440) || (ysize > 2880 ) || (depth != 255) ) |
657 |
|
{ |
658 |
|
fprintf(stderr,"%d %d %d\n",xsize,ysize,depth); |
659 |
|
return 2; |
660 |
|
} |
661 |
|
if ( (XDIM==0) || (YDIM==0) ) |
662 |
|
{ |
663 |
|
XDIM=xsize; |
664 |
|
YDIM=ysize*2/3; |
665 |
|
} |
666 |
|
|
667 |
|
return 0; |
668 |
|
} |
669 |
|
|
670 |
|
static int read_pgmdata(FILE* handle, unsigned char *image) |
671 |
|
{ |
672 |
|
int i; |
673 |
|
char dummy; |
674 |
|
|
675 |
|
unsigned char *y = image; |
676 |
|
unsigned char *u = image + XDIM*YDIM; |
677 |
|
unsigned char *v = image + XDIM*YDIM + XDIM/2*YDIM/2; |
678 |
|
|
679 |
|
/* read Y component of picture */ |
680 |
|
fread(y, 1, XDIM*YDIM, handle); |
681 |
|
|
682 |
|
for (i=0;i<YDIM/2;i++) |
683 |
|
{ |
684 |
|
/* read U */ |
685 |
|
fread(u, 1, XDIM/2, handle); |
686 |
|
|
687 |
|
/* read V */ |
688 |
|
fread(v, 1, XDIM/2, handle); |
689 |
|
|
690 |
|
/* Update pointers */ |
691 |
|
u += XDIM/2; |
692 |
|
v += XDIM/2; |
693 |
|
} |
694 |
|
|
695 |
|
/* I don't know why, but this seems needed */ |
696 |
|
fread(&dummy, 1, 1, handle); |
697 |
|
|
698 |
|
return 0; |
699 |
|
} |
700 |
|
|
701 |
|
static int read_yuvdata(FILE* handle, unsigned char *image) |
702 |
|
{ |
703 |
|
|
704 |
|
if (fread(image, 1, IMAGE_SIZE(XDIM, YDIM), handle) != IMAGE_SIZE(XDIM, YDIM)) |
705 |
|
return 1; |
706 |
|
else |
707 |
|
return 0; |
708 |
|
} |
709 |
|
|
710 |
|
static int write_pgm(char *filename, unsigned char *image) |
711 |
|
{ |
712 |
|
int loop; |
713 |
|
|
714 |
|
unsigned char *y = image; |
715 |
|
unsigned char *u = image + XDIM*YDIM; |
716 |
|
unsigned char *v = image + XDIM*YDIM + XDIM/2*YDIM/2; |
717 |
|
|
718 |
|
FILE *filehandle; |
719 |
|
filehandle=fopen(filename,"w+b"); |
720 |
|
if (filehandle) |
721 |
|
{ |
722 |
|
/* Write header */ |
723 |
|
fprintf(filehandle,"P5\n\n%d %d 255\n", XDIM,YDIM*3/2); |
724 |
|
|
725 |
|
/* Write Y data */ |
726 |
|
fwrite(y, 1, XDIM*YDIM, filehandle); |
727 |
|
|
728 |
|
for(loop=0; loop<YDIM/2; loop++) |
729 |
|
{ |
730 |
|
/* Write U scanline */ |
731 |
|
fwrite(u, 1, XDIM/2, filehandle); |
732 |
|
|
733 |
|
/* Write V scanline */ |
734 |
|
fwrite(v, 1, XDIM/2, filehandle); |
735 |
|
|
736 |
|
/* Update pointers */ |
737 |
|
u += XDIM/2; |
738 |
|
v += XDIM/2; |
739 |
|
|
740 |
|
} |
741 |
|
|
742 |
|
/* Close file */ |
743 |
|
fclose(filehandle); |
744 |
|
|
745 |
|
return 0; |
746 |
|
} |
747 |
|
else |
748 |
|
return 1; |
749 |
|
} |
750 |
|
|
751 |
|
/***************************************************************************** |
752 |
|
* Routines for encoding: init encoder, frame step, release encoder |
753 |
|
****************************************************************************/ |
754 |
|
|
755 |
|
#define FRAMERATE_INCR 1001 |
756 |
|
|
757 |
|
/* Initialize encoder for first use, pass all needed parameters to the codec */ |
758 |
|
static int enc_init(int use_assembler) |
759 |
|
{ |
760 |
|
int xerr; |
761 |
|
|
762 |
|
XVID_INIT_PARAM xinit; |
763 |
|
XVID_ENC_PARAM xparam; |
764 |
|
|
765 |
|
if(use_assembler) { |
766 |
|
|
767 |
|
#ifdef ARCH_IA64 |
768 |
|
xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
769 |
|
#else |
770 |
|
xinit.cpu_flags = 0; |
771 |
|
#endif |
772 |
|
} |
773 |
|
else { |
774 |
|
xinit.cpu_flags = XVID_CPU_FORCE; |
775 |
|
} |
776 |
|
|
777 |
|
xvid_init(NULL, 0, &xinit, NULL); |
778 |
|
|
779 |
|
xparam.width = XDIM; |
780 |
|
xparam.height = YDIM; |
781 |
|
if ((ARG_FRAMERATE - (int)ARG_FRAMERATE) < SMALL_EPS) |
782 |
|
{ |
783 |
|
xparam.fincr = 1; |
784 |
|
xparam.fbase = (int)ARG_FRAMERATE; |
785 |
|
} |
786 |
|
else |
787 |
|
{ |
788 |
|
xparam.fincr = FRAMERATE_INCR; |
789 |
|
xparam.fbase = (int)(FRAMERATE_INCR * ARG_FRAMERATE); |
790 |
|
} |
791 |
|
xparam.rc_reaction_delay_factor = 16; |
792 |
|
xparam.rc_averaging_period = 100; |
793 |
|
xparam.rc_buffer = 10; |
794 |
|
xparam.rc_bitrate = ARG_BITRATE*1000; |
795 |
|
xparam.min_quantizer = ARG_MINQUANT; |
796 |
|
xparam.max_quantizer = ARG_MAXQUANT; |
797 |
|
xparam.max_key_interval = (int)ARG_FRAMERATE*10; |
798 |
|
|
799 |
|
/* I use a small value here, since will not encode whole movies, but short clips */ |
800 |
|
|
801 |
|
xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xparam, NULL); |
802 |
|
enc_handle=xparam.handle; |
803 |
|
|
804 |
|
return xerr; |
805 |
|
} |
806 |
|
|
807 |
|
static int enc_stop() |
808 |
|
{ |
809 |
|
int xerr; |
810 |
|
|
811 |
|
xerr = xvid_encore(enc_handle, XVID_ENC_DESTROY, NULL, NULL); |
812 |
|
return xerr; |
813 |
|
|
814 |
|
} |
815 |
|
|
816 |
|
static int enc_main(unsigned char* image, unsigned char* bitstream, |
817 |
|
int *streamlength, int* frametype) |
818 |
|
{ |
819 |
|
int xerr; |
820 |
|
|
821 |
|
XVID_ENC_FRAME xframe; |
822 |
|
XVID_ENC_STATS xstats; |
823 |
|
|
824 |
|
xframe.bitstream = bitstream; |
825 |
|
xframe.length = -1; // this is written by the routine |
826 |
|
|
827 |
|
xframe.image = image; |
828 |
|
xframe.colorspace = XVID_CSP_YV12; // defined in <xvid.h> |
829 |
|
|
830 |
|
xframe.intra = -1; // let the codec decide between I-frame (1) and P-frame (0) |
831 |
|
|
832 |
|
xframe.quant = ARG_QUANTI; // is quant != 0, use a fixed quant (and ignore bitrate) |
833 |
|
|
834 |
|
xframe.motion = motion_presets[ARG_QUALITY]; |
835 |
|
xframe.general = general_presets[ARG_QUALITY]; |
836 |
|
xframe.quant_intra_matrix = xframe.quant_inter_matrix = NULL; |
837 |
|
|
838 |
|
xerr = xvid_encore(enc_handle, XVID_ENC_ENCODE, &xframe, &xstats); |
839 |
|
|
840 |
|
/* |
841 |
|
* This is statictical data, e.g. for 2-pass. If you are not |
842 |
|
* interested in any of this, you can use NULL instead of &xstats |
843 |
|
*/ |
844 |
|
*frametype = xframe.intra; |
845 |
|
*streamlength = xframe.length; |
846 |
|
|
847 |
|
return xerr; |
848 |
|
} |
849 |
|
|
850 |
|
/***************************************************************************** |
851 |
|
* Routines for decoding: init encoder, frame step, release encoder |
852 |
|
****************************************************************************/ |
853 |
|
|
854 |
|
/* init decoder before first run */ |
855 |
|
static int dec_init(int use_assembler) |
856 |
|
{ |
857 |
|
int xerr; |
858 |
|
|
859 |
|
XVID_INIT_PARAM xinit; |
860 |
|
XVID_DEC_PARAM xparam; |
861 |
|
|
862 |
|
if(use_assembler) |
863 |
|
|
864 |
|
#ifdef ARCH_IA64 |
865 |
|
xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
866 |
|
#else |
867 |
|
xinit.cpu_flags = 0; |
868 |
|
#endif |
869 |
|
|
870 |
|
else |
871 |
|
xinit.cpu_flags = XVID_CPU_FORCE; |
872 |
|
|
873 |
|
xvid_init(NULL, 0, &xinit, NULL); |
874 |
|
xparam.width = XDIM; |
875 |
|
xparam.height = YDIM; |
876 |
|
|
877 |
|
xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); |
878 |
|
dec_handle = xparam.handle; |
879 |
|
|
880 |
|
return xerr; |
881 |
|
} |
882 |
|
|
883 |
|
/* decode one frame */ |
884 |
|
static int dec_main(unsigned char *m4v_buffer, unsigned char *out_buffer, |
885 |
|
int m4v_size) |
886 |
|
{ |
887 |
|
int xerr; |
888 |
|
XVID_DEC_FRAME xframe; |
889 |
|
|
890 |
|
xframe.bitstream = m4v_buffer; |
891 |
|
xframe.length = m4v_size; |
892 |
|
xframe.image = out_buffer; |
893 |
|
xframe.stride = XDIM; |
894 |
|
xframe.colorspace = XVID_CSP_YV12; // XVID_CSP_USER is fastest (no memcopy involved) |
895 |
|
|
896 |
|
xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, NULL); |
897 |
|
|
898 |
|
return xerr; |
899 |
} |
} |
900 |
|
|
901 |
|
/* close decoder to release resources */ |
902 |
|
static int dec_stop() |
903 |
|
{ |
904 |
|
int xerr; |
905 |
|
xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
906 |
|
|
907 |
|
return xerr; |
908 |
|
} |
909 |
|
|
910 |
|
/* EOF */ |