aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* Copyright (c) 2012 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 "config.h"
#if HAVE_UNISTD_H
#include <unistd.h> /* getopt */
#endif
#include "libavutil/pixdesc.h"
#include "libavcodec/avcodec.h"
#include "libavutil/common.h"
#include "libavcodec/raw.h"
#undef printf
#undef fprintf
#if !HAVE_GETOPT
#include "compat/getopt.c"
#endif
static void usage(void)
{
printf("Show the relationships between rawvideo pixel formats and FourCC tags.\n");
printf("usage: fourcc2pixfmt [OPTIONS]\n");
printf("\n"
"Options:\n"
"-l list the pixel format for each fourcc\n"
"-L list the fourccs for each pixel format\n"
"-p PIX_FMT given a pixel format, print the list of associated fourccs (one per line)\n"
"-h print this help\n");
}
static void print_pix_fmt_fourccs(enum AVPixelFormat pix_fmt, const PixelFormatTag *pix_fmt_tags, char sep)
{
int i;
for (i = 0; pix_fmt_tags[i].pix_fmt != AV_PIX_FMT_NONE; i++)
if (pix_fmt_tags[i].pix_fmt == pix_fmt)
printf("%s%c", av_fourcc2str(pix_fmt_tags[i].fourcc), sep);
}
int main(int argc, char **argv)
{
int i, list_fourcc_pix_fmt = 0, list_pix_fmt_fourccs = 0;
const PixelFormatTag *pix_fmt_tags = avpriv_get_raw_pix_fmt_tags();
const char *pix_fmt_name = NULL;
char c;
if (argc == 1) {
usage();
return 0;
}
while ((c = getopt(argc, argv, "hp:lL")) != -1) {
switch (c) {
case 'h':
usage();
return 0;
case 'l':
list_fourcc_pix_fmt = 1;
break;
case 'L':
list_pix_fmt_fourccs = 1;
break;
case 'p':
pix_fmt_name = optarg;
break;
case '?':
usage();
return 1;
}
}
if (list_fourcc_pix_fmt)
for (i = 0; pix_fmt_tags[i].pix_fmt != AV_PIX_FMT_NONE; i++)
printf("%s: %s\n", av_fourcc2str(pix_fmt_tags[i].fourcc),
av_get_pix_fmt_name(pix_fmt_tags[i].pix_fmt));
if (list_pix_fmt_fourccs) {
for (i = 0; av_pix_fmt_desc_get(i); i++) {
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(i);
if (!pix_desc->name || pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
continue;
printf("%s: ", pix_desc->name);
print_pix_fmt_fourccs(i, pix_fmt_tags, ' ');
printf("\n");
}
}
if (pix_fmt_name) {
enum AVPixelFormat pix_fmt = av_get_pix_fmt(pix_fmt_name);
if (pix_fmt == AV_PIX_FMT_NONE) {
fprintf(stderr, "Invalid pixel format selected '%s'\n", pix_fmt_name);
return 1;
}
print_pix_fmt_fourccs(pix_fmt, pix_fmt_tags, '\n');
}
return 0;
}
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