aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* Copyright (c) 2013 Stefano Sabatini
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include "libavutil/avstring.h"
#include "libavutil/file.h"
static void print_sequence(const char *p, int l, int indent)
{
int i;
for (i = 0; i < l; i++)
printf("%02X", (uint8_t)p[i]);
printf("%*s", indent-l*2, "");
}
int main(int argc, char **argv)
{
int ret;
char *filename = argv[1];
uint8_t *file_buf;
size_t file_buf_size;
uint32_t code;
const uint8_t *p, *endp;
ret = av_file_map(filename, &file_buf, &file_buf_size, 0, NULL);
if (ret < 0)
return 1;
p = file_buf;
endp = file_buf + file_buf_size;
while (p < endp) {
int l, r;
const uint8_t *p0 = p;
code = UINT32_MAX;
r = av_utf8_decode(&code, &p, endp, 0);
l = (int)(p-p0);
print_sequence(p0, l, 20);
if (code != UINT32_MAX) {
printf("%-10d 0x%-10X %-5d ", code, code, l);
if (r >= 0) {
if (*p0 == '\n') printf("\\n\n");
else printf ("%.*s\n", l, p0);
} else {
printf("invalid code range\n");
}
} else {
printf("invalid sequence\n");
}
}
av_file_unmap(file_buf, file_buf_size);
return 0;
}
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