> On Nov 22, 2019, at 4:56 PM, Steven Liu <l...@chinaffmpeg.org> wrote:
>
> Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
> ---
> doc/APIchanges | 3 +++
> libavformat/protocols.c | 16 ++++++++++++++++
> libavformat/url.h | 9 +++++++++
> libavformat/version.h | 2 +-
> 4 files changed, 29 insertions(+), 1 deletion(-)
>
> diff --git a/doc/APIchanges b/doc/APIchanges
> index 401c65a753..804a57de41 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -15,6 +15,9 @@ libavutil: 2017-10-21
>
> API changes, most recent first:
>
> +2019-11-22 - xxxxxxxxxx - lavf 58.35.101 - url.h
> + Add av_find_protocol_by_name().
> +
> 2019-11-17 - 1c23abc88f - lavu 56.36.100 - eval API
> Add av_expr_count_vars().
>
> diff --git a/libavformat/protocols.c b/libavformat/protocols.c
> index face5b29b5..d4dee23a8e 100644
> --- a/libavformat/protocols.c
> +++ b/libavformat/protocols.c
> @@ -107,6 +107,22 @@ const char *avio_enum_protocols(void **opaque, int
> output)
> return avio_enum_protocols(opaque, output);
> }
>
> +const URLProtocol *av_find_protocol_by_name(const char *name)
> +{
> + int i = 0;
> + const URLProtocol **protocols;
> + protocols = ffurl_get_protocols(NULL, NULL);
> + for (i = 0; protocols[i]; i++) {
> + const URLProtocol *proto = protocols[i];
> + if (!strcmp(proto->name, name)) {
> + av_freep(&protocols);
> + return proto;
> + }
> + }
> + av_freep(&protocols);
> + return NULL;
> +}
> +
No null pointer check on ‘name’. And I prefer av_free() is this case.
> const URLProtocol **ffurl_get_protocols(const char *whitelist,
> const char *blacklist)
> {
> diff --git a/libavformat/url.h b/libavformat/url.h
> index 4750bfff82..fe0aa10b27 100644
> --- a/libavformat/url.h
> +++ b/libavformat/url.h
> @@ -322,6 +322,15 @@ void ff_make_absolute_url(char *buf, int size, const
> char *base,
> */
> AVIODirEntry *ff_alloc_dir_entry(void);
>
> +/**
> + * Return the URLProtocol of the protocol that will handle the passed name.
> + *
> + * NULL is returned if no protocol could be found for the name.
> + *
> + * @return URLProtocol of the protocol or NULL.
> + */
> +const URLProtocol *av_find_protocol_by_name(const char *name);
> +
> const AVClass *ff_urlcontext_child_class_next(const AVClass *prev);
>
> /**
> diff --git a/libavformat/version.h b/libavformat/version.h
> index bac54aed9d..213b66b45f 100644
> --- a/libavformat/version.h
> +++ b/libavformat/version.h
> @@ -33,7 +33,7 @@
> // Also please add any ticket numbers that you believe might be affected here
> #define LIBAVFORMAT_VERSION_MAJOR 58
> #define LIBAVFORMAT_VERSION_MINOR 35
> -#define LIBAVFORMAT_VERSION_MICRO 100
> +#define LIBAVFORMAT_VERSION_MICRO 101
>
> #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
> LIBAVFORMAT_VERSION_MINOR, \
> --
> 2.15.1
>
>
>
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