fftools: Switch to const AVCodec * where possible

The obstacle to do so was in filter_codec_opts: It uses searches
the AVCodec for options via the AV_OPT_SEARCH_FAKE_OBJ method, which
requires using a void * that points to a pointer to a const AVClass.
When using const AVCodec *, one can not simply use a pointer that points
to the AVCodec's pointer to its AVClass, as said pointer is const, too.
This is fixed by using a temporary pointer to the AVClass.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt
2021-02-25 05:02:39 +01:00
parent c17915fd64
commit 988deae6da
7 changed files with 14 additions and 13 deletions

View File

@@ -2101,7 +2101,7 @@ int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
}
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
AVFormatContext *s, AVStream *st, AVCodec *codec)
AVFormatContext *s, AVStream *st, const AVCodec *codec)
{
AVDictionary *ret = NULL;
AVDictionaryEntry *t = NULL;
@@ -2130,6 +2130,7 @@ AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
}
while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
const AVClass *priv_class;
char *p = strchr(t->key, ':');
/* check stream specification in opt name */
@@ -2142,8 +2143,8 @@ AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
!codec ||
(codec->priv_class &&
av_opt_find(&codec->priv_class, t->key, NULL, flags,
((priv_class = codec->priv_class) &&
av_opt_find(&priv_class, t->key, NULL, flags,
AV_OPT_SEARCH_FAKE_OBJ)))
av_dict_set(&ret, t->key, t->value, 0);
else if (t->key[0] == prefix &&