> 2021年3月11日 上午5:43，li...@edman007.com 写道：
>
> From: Ed Martin <edman...@edman007.com>
>
> open_url_keepalive() unsets the options when it uses them, this
> includes the offsets for the Range: header. When using the HLS
> tag #EXT-X-BYTERANGE along with multiple files, the range options
> must be preserved after open_url_keepalive() returns EOF so that
> the new file can be opened. Failure to do this results in ignoring
> the #EXT-X-BYTERANGE tag and reading the wrong bytes of the file.
>
> To fix it, reset the options before calling io_open() following
> open_url_keepalive() reaching EOF
> ---
> libavformat/hls.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/libavformat/hls.c b/libavformat/hls.c
> index af2468ad9b..d08d00cf24 100644
> --- a/libavformat/hls.c
> +++ b/libavformat/hls.c
> @@ -677,6 +677,8 @@ static int open_url(AVFormatContext *s, AVIOContext **pb,
> const char *url,
> av_log(s, AV_LOG_WARNING,
> "keepalive request failed for '%s' with error: '%s' when
> opening url, retrying with new connection\n",
> url, av_err2str(ret));
> + av_dict_copy(&tmp, *opts, 0);
> + av_dict_copy(&tmp, opts2, 0);
> ret = s->io_open(s, pb, url, AVIO_FLAG_READ, &tmp);
> }
> } else {
> --
> 2.30.1
>
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LGTM
Thanks
Steven Liu
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