#11577: [Regression] Incorrect parsing of metadata stream specifiers with a
question mark
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Reporter: Mive | Owner: (none)
Type: defect | Status: new
Priority: normal | Component: ffmpeg
Version: 7.1 | Resolution:
Keywords: cmdutils | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by Mive):
* component: undetermined => ffmpeg
* keywords: => cmdutils
* summary: Incorrect parsing of metadata stream specifiers with a question
mark =>
[Regression] Incorrect parsing of metadata stream specifiers with a
question mark
Old description:
> Summary of the bug:
> When specifying a stream with metadata stream specifiers that include a
> `?` at the end, an error is raised `Stream map '' matches no streams.` No
> error is raised when removing the `?`. This issue does not present itself
> when using normal stream speficiers like `-map 0:s?`. This issue is also
> not present in ffmpeg 7.0
>
> How to reproduce:
> Get a video file with tracks containing language metadata and try to use
> a metadata stream specifier with a `?` eg. `-map 0:s:m:language:eng?`
> {{{
> % ffmpeg -i input.mkv -map 0:V -map 0:s:m:language:eng? ... output.mkv
> }}}
New description:
Summary of the bug:
When specifying a stream with metadata stream specifiers that include a
`?` at the end, an error is raised `Stream map '' matches no streams.` No
error is raised when removing the `?`. This issue does not present itself
when using normal stream speficiers like `-map 0:s?`. This issue is also
not present in ffmpeg 7.0
More specifically, function `stream_specifier_parse` only specifies `:` as
the value termniator instead of `:?` or similar, and thus the resulting
key:value pair looks like this `key:value?` when a `?` is present.
How to reproduce:
Get a video file with tracks containing language metadata and try to use a
metadata stream specifier with a `?` eg. `-map 0:s:m:language:eng?`
{{{
% ffmpeg -i input.mkv -map 0:V -map 0:s:m:language:eng? ... output.mkv
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/11577#comment:1>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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