3 |
* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
4 |
* - Console based decoding test application - |
* - Console based decoding test application - |
5 |
* |
* |
6 |
* Copyright(C) 2002 Christoph Lampert |
* Copyright(C) 2002-2003 Christoph Lampert |
7 |
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* 2002-2003 Edouard Gomez <ed.gomez@free.fr> |
8 |
* |
* |
9 |
* This program is free software; you can redistribute it and/or modify |
* This program is free software; you can redistribute it and/or modify |
10 |
* 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 |
32 |
* the speed for this is measured. |
* the speed for this is measured. |
33 |
* |
* |
34 |
* The program is plain C and needs no libraries except for libxvidcore, |
* The program is plain C and needs no libraries except for libxvidcore, |
35 |
* and maths-lib, so with UN*X you simply compile by |
* and maths-lib. |
36 |
* |
* |
37 |
* gcc xvid_decraw.c -lxvidcore -lm -o xvid_decraw |
* Use ./xvid_decraw -help for a list of options |
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* |
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* You have to specify the image dimensions (until the add the feature |
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* to read this from the bitstream) |
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* |
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* Usage : xvid_decraw <-w width> <-h height> [OPTIONS] |
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* Options : |
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* -asm : use assembly optimizations (default=disabled) |
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* -w integer : frame width ([1.2048]) |
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* -h integer : frame height ([1.2048]) |
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* -i string : input filename (default=stdin) |
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* -t integer : input data type (raw=0, mp4u=1) |
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* -d boolean : save decoder output (0 False*, !=0 True) |
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* -m boolean : save mpeg4 raw stream to single files (0 False*, !=0 True) |
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* -help : This help message |
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* (* means default) |
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38 |
* |
* |
39 |
****************************************************************************/ |
****************************************************************************/ |
40 |
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61 |
static int YDIM = 0; |
static int YDIM = 0; |
62 |
static int ARG_SAVEDECOUTPUT = 0; |
static int ARG_SAVEDECOUTPUT = 0; |
63 |
static int ARG_SAVEMPEGSTREAM = 0; |
static int ARG_SAVEMPEGSTREAM = 0; |
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static int ARG_STREAMTYPE = 0; |
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64 |
static char *ARG_INPUTFILE = NULL; |
static char *ARG_INPUTFILE = NULL; |
65 |
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66 |
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67 |
static char filepath[256] = "./"; |
static char filepath[256] = "./"; |
68 |
static void *dec_handle = NULL; |
static void *dec_handle = NULL; |
69 |
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70 |
# define BUFFER_SIZE 10*XDIM*YDIM |
#define BUFFER_SIZE (2*1024*1024) |
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#define LONG_PACK(a,b,c,d) ((long) (((long)(a))<<24) | (((long)(b))<<16) | \ |
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(((long)(c))<<8) |((long)(d))) |
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#define SWAP(a) ( (((a)&0x000000ff)<<24) | (((a)&0x0000ff00)<<8) | \ |
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(((a)&0x00ff0000)>>8) | (((a)&0xff000000)>>24) ) |
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71 |
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72 |
/***************************************************************************** |
/***************************************************************************** |
73 |
* Local prototypes |
* Local prototypes |
80 |
static int dec_main(unsigned char *istream, |
static int dec_main(unsigned char *istream, |
81 |
unsigned char *ostream, |
unsigned char *ostream, |
82 |
int istream_size, |
int istream_size, |
83 |
int *ostream_size); |
xvid_dec_stats_t *xvid_dec_stats); |
84 |
static int dec_stop(); |
static int dec_stop(); |
85 |
static void usage(); |
static void usage(); |
86 |
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87 |
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88 |
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const char * type2str(int type) |
89 |
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{ |
90 |
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if (type==XVID_TYPE_IVOP) |
91 |
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return "I"; |
92 |
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if (type==XVID_TYPE_PVOP) |
93 |
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return "P"; |
94 |
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if (type==XVID_TYPE_BVOP) |
95 |
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return "B"; |
96 |
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return "S"; |
97 |
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} |
98 |
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99 |
/***************************************************************************** |
/***************************************************************************** |
100 |
* Main program |
* Main program |
101 |
****************************************************************************/ |
****************************************************************************/ |
105 |
unsigned char *mp4_buffer = NULL; |
unsigned char *mp4_buffer = NULL; |
106 |
unsigned char *mp4_ptr = NULL; |
unsigned char *mp4_ptr = NULL; |
107 |
unsigned char *out_buffer = NULL; |
unsigned char *out_buffer = NULL; |
108 |
int bigendian = 0; |
int useful_bytes; |
109 |
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xvid_dec_stats_t xvid_dec_stats; |
110 |
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111 |
double totaldectime; |
double totaldectime; |
112 |
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122 |
int i; |
int i; |
123 |
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124 |
printf("xvid_decraw - raw mpeg4 bitstream decoder "); |
printf("xvid_decraw - raw mpeg4 bitstream decoder "); |
125 |
printf("written by Christoph Lampert 2002\n\n"); |
printf("written by Christoph Lampert 2002-2003\n\n"); |
126 |
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127 |
/***************************************************************************** |
/***************************************************************************** |
128 |
* Command line parsing |
* Command line parsing |
132 |
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133 |
if (strcmp("-asm", argv[i]) == 0 ) { |
if (strcmp("-asm", argv[i]) == 0 ) { |
134 |
use_assembler = 1; |
use_assembler = 1; |
135 |
} |
} else if (strcmp("-d", argv[i]) == 0) { |
136 |
else if (strcmp("-w", argv[i]) == 0 && i < argc - 1 ) { |
ARG_SAVEDECOUTPUT = 1; |
137 |
i++; |
} else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { |
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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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YDIM = atoi(argv[i]); |
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} |
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else if (strcmp("-d", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
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ARG_SAVEDECOUTPUT = atoi(argv[i]); |
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} |
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else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { |
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138 |
i++; |
i++; |
139 |
ARG_INPUTFILE = argv[i]; |
ARG_INPUTFILE = argv[i]; |
140 |
} |
} else if (strcmp("-m", argv[i]) == 0) { |
141 |
else if (strcmp("-m", argv[i]) == 0 && i < argc - 1 ) { |
ARG_SAVEMPEGSTREAM = 1; |
142 |
i++; |
} else if (strcmp("-help", argv[i]) == 0) { |
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ARG_SAVEMPEGSTREAM = atoi(argv[i]); |
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} |
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else if (strcmp("-t", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
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ARG_STREAMTYPE = atoi(argv[i]); |
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} |
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else if (strcmp("-help", argv[i])) { |
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143 |
usage(); |
usage(); |
144 |
return(0); |
return(0); |
145 |
} |
} else { |
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else { |
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146 |
usage(); |
usage(); |
147 |
exit(-1); |
exit(-1); |
148 |
} |
} |
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149 |
} |
} |
150 |
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151 |
/***************************************************************************** |
/***************************************************************************** |
152 |
* Values checking |
* Values checking |
153 |
****************************************************************************/ |
****************************************************************************/ |
154 |
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if(XDIM <= 0 || XDIM > 2048 || YDIM <= 0 || YDIM > 2048) { |
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usage(); |
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return -1; |
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} |
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155 |
if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { |
if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { |
156 |
in_file = stdin; |
in_file = stdin; |
157 |
} |
} |
160 |
in_file = fopen(ARG_INPUTFILE, "rb"); |
in_file = fopen(ARG_INPUTFILE, "rb"); |
161 |
if (in_file == NULL) { |
if (in_file == NULL) { |
162 |
fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); |
fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); |
163 |
return -1; |
return(-1); |
164 |
} |
} |
165 |
} |
} |
166 |
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174 |
if (!mp4_buffer) |
if (!mp4_buffer) |
175 |
goto free_all_memory; |
goto free_all_memory; |
176 |
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/* Memory for frame output */ |
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out_buffer = (unsigned char *) malloc(XDIM*YDIM*4); |
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if (!out_buffer) |
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goto free_all_memory; |
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177 |
/***************************************************************************** |
/***************************************************************************** |
178 |
* XviD PART Start |
* XviD PART Start |
179 |
****************************************************************************/ |
****************************************************************************/ |
190 |
* Main loop |
* Main loop |
191 |
****************************************************************************/ |
****************************************************************************/ |
192 |
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193 |
totalsize = LONG_PACK('M','P','4','U'); |
/* Fill the buffer */ |
194 |
mp4_ptr = (unsigned char *)&totalsize; |
useful_bytes = fread(mp4_buffer, 1, BUFFER_SIZE, in_file); |
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if(*mp4_ptr == 'M') |
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bigendian = 1; |
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else |
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bigendian = 0; |
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if(ARG_STREAMTYPE) { |
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unsigned char header[4]; |
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/* MP4U format : read header */ |
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if(feof(in_file)) |
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goto release_all; |
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fread(header, 4, 1, in_file); |
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if(header[0] != 'M' || header[1] != 'P' || |
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header[2] != '4' || header[3] != 'U') { |
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fprintf(stderr, "Error, this not a mp4u container file\n"); |
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goto release_all; |
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} |
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} |
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else { |
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fread(mp4_buffer, BUFFER_SIZE, 1, in_file); |
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} |
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195 |
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196 |
totaldectime = 0; |
totaldectime = 0; |
197 |
totalsize = 0; |
totalsize = 0; |
199 |
mp4_ptr = mp4_buffer; |
mp4_ptr = mp4_buffer; |
200 |
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201 |
do { |
do { |
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int mp4_size = (mp4_buffer + BUFFER_SIZE - mp4_ptr); |
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202 |
int used_bytes = 0; |
int used_bytes = 0; |
203 |
double dectime; |
double dectime; |
204 |
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/* Read data from input file */ |
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if(ARG_STREAMTYPE) { |
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/* MP4U container */ |
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/* Read stream size first */ |
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if(feof(in_file)) |
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break; |
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fread(&mp4_size, sizeof(long), 1, in_file); |
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/* Mp4U container is big endian */ |
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if(!bigendian) |
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mp4_size = SWAP(mp4_size); |
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/* Read mp4_size_bytes */ |
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if(feof(in_file)) |
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break; |
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fread(mp4_buffer, mp4_size, 1, in_file); |
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205 |
/* |
/* |
206 |
* When reading mp4u, we don't have to care about buffer |
* If the buffer is half empty or there are no more bytes in it |
207 |
* filling as we know exactly how much bytes there are in |
* then fill it. |
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* next frame |
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208 |
*/ |
*/ |
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mp4_ptr = mp4_buffer; |
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} |
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else { |
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/* Real raw stream */ |
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/* buffer more than half empty -> Fill it */ |
|
209 |
if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2) { |
if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2) { |
210 |
int rest = (mp4_buffer + BUFFER_SIZE - mp4_ptr); |
int already_in_buffer = (mp4_buffer + BUFFER_SIZE - mp4_ptr); |
211 |
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212 |
/* Move data if needed */ |
/* Move data if needed */ |
213 |
if (rest) |
if (already_in_buffer > 0) |
214 |
memcpy(mp4_buffer, mp4_ptr, rest); |
memcpy(mp4_buffer, mp4_ptr, already_in_buffer); |
215 |
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216 |
/* Update mp4_ptr */ |
/* Update mp4_ptr */ |
217 |
mp4_ptr = mp4_buffer; |
mp4_ptr = mp4_buffer; |
219 |
/* read new data */ |
/* read new data */ |
220 |
if(feof(in_file)) |
if(feof(in_file)) |
221 |
break; |
break; |
|
fread(mp4_buffer + rest, BUFFER_SIZE - rest, 1, in_file); |
|
222 |
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|
223 |
} |
useful_bytes += fread(mp4_buffer + already_in_buffer, |
224 |
|
1, BUFFER_SIZE - already_in_buffer, |
225 |
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in_file); |
226 |
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227 |
} |
} |
228 |
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229 |
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230 |
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/* This loop is needed to handle VOL/NVOP reading */ |
231 |
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do { |
232 |
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233 |
/* Decode frame */ |
/* Decode frame */ |
234 |
dectime = msecond(); |
dectime = msecond(); |
235 |
status = dec_main(mp4_ptr, out_buffer, mp4_size, &used_bytes); |
used_bytes = dec_main(mp4_ptr, out_buffer, useful_bytes, &xvid_dec_stats); |
236 |
dectime = msecond() - dectime; |
dectime = msecond() - dectime; |
237 |
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|
238 |
if (status) { |
/* Resize image buffer if needed */ |
239 |
break; |
if(xvid_dec_stats.type == XVID_TYPE_VOL) { |
240 |
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241 |
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/* Check if old buffer is smaller */ |
242 |
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if(XDIM*YDIM < xvid_dec_stats.data.vol.width*xvid_dec_stats.data.vol.height) { |
243 |
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244 |
|
/* Copy new witdh and new height from the vol structure */ |
245 |
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XDIM = xvid_dec_stats.data.vol.width; |
246 |
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YDIM = xvid_dec_stats.data.vol.height; |
247 |
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248 |
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/* Free old output buffer*/ |
249 |
|
if(out_buffer) free(out_buffer); |
250 |
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251 |
|
/* Allocate the new buffer */ |
252 |
|
out_buffer = (unsigned char*)malloc(XDIM*YDIM*4); |
253 |
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if(out_buffer == NULL) |
254 |
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goto free_all_memory; |
255 |
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256 |
|
fprintf(stderr, "Resized frame buffer to %dx%d\n", XDIM, YDIM); |
257 |
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} |
258 |
} |
} |
259 |
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260 |
/* |
/* Update buffer pointers */ |
261 |
* Only needed for real raw stream, mp4u uses |
if(used_bytes > 0) { |
|
* mp4_ptr = mp4_buffer for each frame |
|
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*/ |
|
262 |
mp4_ptr += used_bytes; |
mp4_ptr += used_bytes; |
263 |
|
useful_bytes -= used_bytes; |
264 |
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265 |
/* Updated data */ |
/* Total size */ |
266 |
totalsize += used_bytes; |
totalsize += used_bytes; |
267 |
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} |
268 |
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269 |
|
}while(xvid_dec_stats.type <= 0 && useful_bytes > 0); |
270 |
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271 |
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/* Check if there is a negative number of useful bytes left in buffer |
272 |
|
* This means we went too far */ |
273 |
|
if(useful_bytes < 0) |
274 |
|
break; |
275 |
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276 |
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/* Updated data - Count only usefull decode time */ |
277 |
totaldectime += dectime; |
totaldectime += dectime; |
278 |
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/* Prints some decoding stats */ |
|
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printf("Frame %5d: dectime =%6.1f ms length=%7d bytes \n", |
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filenr, dectime, used_bytes); |
|
279 |
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280 |
/* Save individual mpeg4 strean if required */ |
printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", |
281 |
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filenr, type2str(xvid_dec_stats.type), dectime, used_bytes); |
282 |
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283 |
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/* Save individual mpeg4 stream if required */ |
284 |
if (ARG_SAVEMPEGSTREAM) { |
if (ARG_SAVEMPEGSTREAM) { |
285 |
FILE *filehandle = NULL; |
FILE *filehandle = NULL; |
286 |
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292 |
filename); |
filename); |
293 |
} |
} |
294 |
else { |
else { |
295 |
fwrite(mp4_buffer, used_bytes, 1, filehandle); |
fwrite(mp4_ptr-used_bytes, 1, used_bytes, filehandle); |
296 |
fclose(filehandle); |
fclose(filehandle); |
297 |
} |
} |
298 |
} |
} |
299 |
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|
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|
300 |
/* Save output frame if required */ |
/* Save output frame if required */ |
301 |
if (ARG_SAVEDECOUTPUT) { |
if (ARG_SAVEDECOUTPUT) { |
302 |
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
311 |
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312 |
} while ( (status>=0) && (filenr<ABS_MAXFRAMENR) ); |
} while ( (status>=0) && (filenr<ABS_MAXFRAMENR) ); |
313 |
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314 |
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/***************************************************************************** |
315 |
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* Flush decoder buffers |
316 |
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****************************************************************************/ |
317 |
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318 |
|
do { |
319 |
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|
320 |
|
/* Fake vars */ |
321 |
|
int used_bytes; |
322 |
|
double dectime; |
323 |
|
|
324 |
|
do { |
325 |
|
dectime = msecond(); |
326 |
|
used_bytes = dec_main(NULL, out_buffer, -1, &xvid_dec_stats); |
327 |
|
dectime = msecond() - dectime; |
328 |
|
}while(used_bytes>=0 && xvid_dec_stats.type <= 0); |
329 |
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|
330 |
|
if (used_bytes < 0) { /* XVID_ERR_END */ |
331 |
|
break; |
332 |
|
} |
333 |
|
|
334 |
|
/* Updated data - Count only usefull decode time */ |
335 |
|
totaldectime += dectime; |
336 |
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|
337 |
|
/* Prints some decoding stats */ |
338 |
|
printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", |
339 |
|
filenr, type2str(xvid_dec_stats.type), dectime, used_bytes); |
340 |
|
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341 |
|
/* Save output frame if required */ |
342 |
|
if (ARG_SAVEDECOUTPUT) { |
343 |
|
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
344 |
|
if(write_pgm(filename, out_buffer)) { |
345 |
|
fprintf(stderr, |
346 |
|
"Error writing decoded PGM frame %s\n", |
347 |
|
filename); |
348 |
|
} |
349 |
|
} |
350 |
|
|
351 |
|
filenr++; |
352 |
|
|
353 |
|
}while(1); |
354 |
|
|
355 |
/***************************************************************************** |
/***************************************************************************** |
356 |
* Calculate totals and averages for output, print results |
* Calculate totals and averages for output, print results |
359 |
totalsize /= filenr; |
totalsize /= filenr; |
360 |
totaldectime /= filenr; |
totaldectime /= filenr; |
361 |
|
|
362 |
printf("Avg: dectime %5.2f ms, %5.2f fps, mp4 stream size =%d\n", |
printf("Avg: dectime(ms) =%7.2f, fps =%7.2f, length(bytes) =%7d\n", |
363 |
totaldectime, 1000/totaldectime, (int)totalsize); |
totaldectime, 1000/totaldectime, (int)totalsize); |
364 |
|
|
365 |
/***************************************************************************** |
/***************************************************************************** |
377 |
free(out_buffer); |
free(out_buffer); |
378 |
free(mp4_buffer); |
free(mp4_buffer); |
379 |
|
|
380 |
return 0; |
return(0); |
381 |
} |
} |
382 |
|
|
383 |
/***************************************************************************** |
/***************************************************************************** |
387 |
static void usage() |
static void usage() |
388 |
{ |
{ |
389 |
|
|
390 |
fprintf(stderr, "Usage : xvid_decraw <-w width> <-h height> [OPTIONS]\n"); |
fprintf(stderr, "Usage : xvid_decraw [OPTIONS]\n"); |
391 |
fprintf(stderr, "Options :\n"); |
fprintf(stderr, "Options :\n"); |
392 |
fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); |
fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); |
|
fprintf(stderr, " -w integer : frame width ([1.2048])\n"); |
|
|
fprintf(stderr, " -h integer : frame height ([1.2048])\n"); |
|
393 |
fprintf(stderr, " -i string : input filename (default=stdin)\n"); |
fprintf(stderr, " -i string : input filename (default=stdin)\n"); |
394 |
fprintf(stderr, " -t integer : input data type (raw=0, mp4u=1)\n"); |
fprintf(stderr, " -d : save decoder output\n"); |
395 |
fprintf(stderr, " -d boolean : save decoder output (0 False*, !=0 True)\n"); |
fprintf(stderr, " -m : save mpeg4 raw stream to individual files\n"); |
|
fprintf(stderr, " -m boolean : save mpeg4 raw stream to individual files (0 False*, !=0 True)\n"); |
|
396 |
fprintf(stderr, " -help : This help message\n"); |
fprintf(stderr, " -help : This help message\n"); |
397 |
fprintf(stderr, " (* means default)\n"); |
fprintf(stderr, " (* means default)\n"); |
398 |
|
|
409 |
#ifndef WIN32 |
#ifndef WIN32 |
410 |
struct timeval tv; |
struct timeval tv; |
411 |
gettimeofday(&tv, 0); |
gettimeofday(&tv, 0); |
412 |
return (double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3; |
return((double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3); |
413 |
#else |
#else |
414 |
clock_t clk; |
clock_t clk; |
415 |
clk = clock(); |
clk = clock(); |
416 |
return clk * 1000 / CLOCKS_PER_SEC; |
return(clk * 1000 / CLOCKS_PER_SEC); |
417 |
#endif |
#endif |
418 |
} |
} |
419 |
|
|
458 |
/* Close file */ |
/* Close file */ |
459 |
fclose(filehandle); |
fclose(filehandle); |
460 |
|
|
461 |
return 0; |
return(0); |
462 |
} |
} |
463 |
else |
else |
464 |
return 1; |
return(1); |
465 |
} |
} |
466 |
|
|
467 |
/***************************************************************************** |
/***************************************************************************** |
472 |
static int |
static int |
473 |
dec_init(int use_assembler) |
dec_init(int use_assembler) |
474 |
{ |
{ |
475 |
int xerr; |
int ret; |
476 |
|
|
477 |
XVID_INIT_PARAM xinit; |
xvid_gbl_init_t xvid_gbl_init; |
478 |
XVID_DEC_PARAM xparam; |
xvid_dec_create_t xvid_dec_create; |
479 |
|
|
480 |
|
/*------------------------------------------------------------------------ |
481 |
|
* XviD core initialization |
482 |
|
*----------------------------------------------------------------------*/ |
483 |
|
|
484 |
|
/* Version */ |
485 |
|
xvid_gbl_init.version = XVID_VERSION; |
486 |
|
|
487 |
|
/* Assembly setting */ |
488 |
if(use_assembler) |
if(use_assembler) |
489 |
#ifdef ARCH_IA64 |
#ifdef ARCH_IS_IA64 |
490 |
xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
491 |
#else |
#else |
492 |
xinit.cpu_flags = 0; |
xvid_gbl_init.cpu_flags = 0; |
493 |
#endif |
#endif |
494 |
else |
else |
495 |
xinit.cpu_flags = XVID_CPU_FORCE; |
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE; |
496 |
|
|
497 |
xvid_init(NULL, 0, &xinit, NULL); |
xvid_global(NULL, 0, &xvid_gbl_init, NULL); |
|
xparam.width = XDIM; |
|
|
xparam.height = YDIM; |
|
498 |
|
|
499 |
xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); |
/*------------------------------------------------------------------------ |
500 |
dec_handle = xparam.handle; |
* XviD encoder initialization |
501 |
|
*----------------------------------------------------------------------*/ |
502 |
|
|
503 |
return xerr; |
/* Version */ |
504 |
|
xvid_dec_create.version = XVID_VERSION; |
505 |
|
|
506 |
|
/* |
507 |
|
* Image dimensions -- set to 0, xvidcore will resize when ever it is |
508 |
|
* needed |
509 |
|
*/ |
510 |
|
xvid_dec_create.width = 0; |
511 |
|
xvid_dec_create.height = 0; |
512 |
|
|
513 |
|
ret = xvid_decore(NULL, XVID_DEC_CREATE, &xvid_dec_create, NULL); |
514 |
|
|
515 |
|
dec_handle = xvid_dec_create.handle; |
516 |
|
|
517 |
|
return(ret); |
518 |
} |
} |
519 |
|
|
520 |
/* decode one frame */ |
/* decode one frame */ |
522 |
dec_main(unsigned char *istream, |
dec_main(unsigned char *istream, |
523 |
unsigned char *ostream, |
unsigned char *ostream, |
524 |
int istream_size, |
int istream_size, |
525 |
int *ostream_size) |
xvid_dec_stats_t *xvid_dec_stats) |
526 |
{ |
{ |
527 |
|
|
528 |
int xerr; |
int ret; |
529 |
XVID_DEC_FRAME xframe; |
|
530 |
|
xvid_dec_frame_t xvid_dec_frame; |
531 |
|
|
532 |
|
/* Set version */ |
533 |
|
xvid_dec_frame.version = XVID_VERSION; |
534 |
|
xvid_dec_stats->version = XVID_VERSION; |
535 |
|
|
536 |
|
/* No general flags to set */ |
537 |
|
xvid_dec_frame.general = 0; |
538 |
|
|
539 |
xframe.bitstream = istream; |
/* Input stream */ |
540 |
xframe.length = istream_size; |
xvid_dec_frame.bitstream = istream; |
541 |
xframe.image = ostream; |
xvid_dec_frame.length = istream_size; |
|
xframe.stride = XDIM; |
|
|
xframe.colorspace = XVID_CSP_YV12; |
|
542 |
|
|
543 |
xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, NULL); |
/* Output frame structure */ |
544 |
|
xvid_dec_frame.output.plane[0] = ostream; |
545 |
|
xvid_dec_frame.output.stride[0] = XDIM; |
546 |
|
xvid_dec_frame.output.csp = XVID_CSP_I420; |
547 |
|
|
548 |
*ostream_size = xframe.length; |
ret = xvid_decore(dec_handle, XVID_DEC_DECODE, &xvid_dec_frame, xvid_dec_stats); |
549 |
|
|
550 |
return xerr; |
return(ret); |
551 |
} |
} |
552 |
|
|
553 |
/* close decoder to release resources */ |
/* close decoder to release resources */ |
554 |
static int |
static int |
555 |
dec_stop() |
dec_stop() |
556 |
{ |
{ |
557 |
int xerr; |
int ret; |
558 |
|
|
559 |
xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
ret = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
560 |
|
|
561 |
return xerr; |
return(ret); |
562 |
} |
} |