mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2026-11-06 13:28:17 +00:00
Romain Beauxis
5664e9e97f
Walk all the side data types: each one has to have a handle, which has to find the type again and not be shared. The handles are compared with the reference, so that a new type fails the test until it gets one and a released handle cannot change unnoticed.
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*
|
|
* 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 <string.h>
|
|
|
|
#include "libavcodec/packet.h"
|
|
#include "libavcodec/packet_internal.h"
|
|
|
|
#define HANDLE_CHARS "abcdefghijklmnopqrstuvwxyz0123456789_"
|
|
|
|
#define SET_HANDLE(type, handle) \
|
|
if (handles[AV_PKT_DATA_ ## type]) { \
|
|
printf("%s: second handle %s\n", #type, handle); \
|
|
ret = 1; \
|
|
} \
|
|
handles[AV_PKT_DATA_ ## type] = handle;
|
|
|
|
/*
|
|
* Every side data type needs exactly one handle, and no two types may share
|
|
* one. A handle is typed in options, where '+' and '-' have a meaning, so it
|
|
* is made of [a-z0-9_] only. The handles are printed and compared with the
|
|
* reference, since a released handle must not change.
|
|
*/
|
|
int main(void)
|
|
{
|
|
const char *handles[AV_PKT_DATA_NB] = { NULL };
|
|
int ret = 0;
|
|
|
|
FF_PACKET_SIDE_DATA_HANDLES(SET_HANDLE)
|
|
|
|
for (int type = 0; type < AV_PKT_DATA_NB; type++) {
|
|
printf("%2d: %s\n", type, handles[type] ? handles[type] : "(none)");
|
|
if (!handles[type])
|
|
ret = 1;
|
|
else if (strspn(handles[type], HANDLE_CHARS) != strlen(handles[type])) {
|
|
printf("%2d: character outside of [a-z0-9_]\n", type);
|
|
ret = 1;
|
|
}
|
|
|
|
for (int other = 0; handles[type] && other < type; other++) {
|
|
if (handles[other] && !strcmp(handles[type], handles[other])) {
|
|
printf("%2d: handle of type %d\n", type, other);
|
|
ret = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|