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avcodec/codec, allcodecs: Constify the AVCodec API

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Andreas Rheinhardt
2021-02-25 07:45:51 +01:00
committed by James Almer
parent 14fa0a4efb
commit 626535f6a1
15 changed files with 45 additions and 38 deletions
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18
libavcodec/allcodecs.c
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@@ -873,7 +873,7 @@ static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
}
}
static AVCodec *find_codec(enum AVCodecID id, int (*x)(const AVCodec *))
static const AVCodec *find_codec(enum AVCodecID id, int (*x)(const AVCodec *))
{
const AVCodec *p, *experimental = NULL;
void *i = 0;
@@ -887,24 +887,24 @@ static AVCodec *find_codec(enum AVCodecID id, int (*x)(const AVCodec *))
if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
experimental = p;
} else
return (AVCodec*)p;
return p;
}
}
return (AVCodec*)experimental;
return experimental;
}
AVCodec *avcodec_find_encoder(enum AVCodecID id)
const AVCodec *avcodec_find_encoder(enum AVCodecID id)
{
return find_codec(id, av_codec_is_encoder);
}
AVCodec *avcodec_find_decoder(enum AVCodecID id)
const AVCodec *avcodec_find_decoder(enum AVCodecID id)
{
return find_codec(id, av_codec_is_decoder);
}
static AVCodec *find_codec_by_name(const char *name, int (*x)(const AVCodec *))
static const AVCodec *find_codec_by_name(const char *name, int (*x)(const AVCodec *))
{
void *i = 0;
const AVCodec *p;
@@ -916,18 +916,18 @@ static AVCodec *find_codec_by_name(const char *name, int (*x)(const AVCodec *))
if (!x(p))
continue;
if (strcmp(name, p->name) == 0)
return (AVCodec*)p;
return p;
}
return NULL;
}
AVCodec *avcodec_find_encoder_by_name(const char *name)
const AVCodec *avcodec_find_encoder_by_name(const char *name)
{
return find_codec_by_name(name, av_codec_is_encoder);
}
AVCodec *avcodec_find_decoder_by_name(const char *name)
const AVCodec *avcodec_find_decoder_by_name(const char *name)
{
return find_codec_by_name(name, av_codec_is_decoder);
}