openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-24 03:39:45 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

avutil/opt: Implement av_opt_set_defaults* in O(N) instead of O(N²) time

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-07 12:41:09 +01:00
parent 0aedf90e62
commit e8ac905dae
1 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
libavutil/opt.c
View File

@ -1101,6 +1101,7 @@ void av_opt_set_defaults2(void *s, int mask, int flags)
const AVClass *class = *(AVClass **)s;
const AVOption *opt = NULL;
while ((opt = av_opt_next(s, opt)) != NULL) {
void *dst = ((uint8_t*)s) + opt->offset;
#if FF_API_OLD_AVOPTIONS
if ((opt->flags & mask) != flags)
continue;
@ -1114,26 +1115,32 @@ void av_opt_set_defaults2(void *s, int mask, int flags)
case AV_OPT_TYPE_INT64:
case AV_OPT_TYPE_DURATION:
case AV_OPT_TYPE_CHANNEL_LAYOUT:
av_opt_set_int(s, opt->name, opt->default_val.i64, 0);
write_number(s, opt, dst, 1, 1, opt->default_val.i64);
break;
case AV_OPT_TYPE_DOUBLE:
case AV_OPT_TYPE_FLOAT: {
double val;
val = opt->default_val.dbl;
av_opt_set_double(s, opt->name, val, 0);
write_number(s, opt, dst, val, 1, 1);
}
break;
case AV_OPT_TYPE_RATIONAL: {
AVRational val;
val = av_d2q(opt->default_val.dbl, INT_MAX);
av_opt_set_q(s, opt->name, val, 0);
write_number(s, opt, dst, 1, val.den, val.num);
}
break;
case AV_OPT_TYPE_COLOR:
set_string_color(s, opt, opt->default_val.str, dst);
break;
case AV_OPT_TYPE_STRING:
set_string(s, opt, opt->default_val.str, dst);
break;
case AV_OPT_TYPE_IMAGE_SIZE:
set_string_image_size(s, opt, opt->default_val.str, dst);
break;
case AV_OPT_TYPE_VIDEO_RATE:
av_opt_set(s, opt->name, opt->default_val.str, 0);
set_string_video_rate(s, opt, opt->default_val.str, dst);
break;
case AV_OPT_TYPE_PIXEL_FMT:
#if LIBAVUTIL_VERSION_MAJOR < 53
@ -1141,7 +1148,7 @@ void av_opt_set_defaults2(void *s, int mask, int flags)
av_opt_set(s, opt->name, opt->default_val.str, 0);
else
#endif
av_opt_set_pixel_fmt(s, opt->name, opt->default_val.i64, 0);
write_number(s, opt, dst, 1, 1, opt->default_val.i64);
break;
case AV_OPT_TYPE_SAMPLE_FMT:
#if LIBAVUTIL_VERSION_MAJOR < 53
@ -1149,7 +1156,7 @@ void av_opt_set_defaults2(void *s, int mask, int flags)
av_opt_set(s, opt->name, opt->default_val.str, 0);
else
#endif
av_opt_set_sample_fmt(s, opt->name, opt->default_val.i64, 0);
write_number(s, opt, dst, 1, 1, opt->default_val.i64);
break;
case AV_OPT_TYPE_BINARY:
/* Cannot set default for binary */