Commit graph

20 commits

Author SHA1 Message Date
Sebastian Dröge
0f342da7f6 subparse: Don't unref seek event twice if forwarding it directly failed
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6882>
2024-05-20 16:16:06 +00:00
Elliot Chen
824c70d35a subparse: forward seek event first and return if succeeded
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4889>
2024-04-19 15:24:36 +00:00
Edward Hervey
34a1245905 subparsers: Give proper category to subtitle "decoders"
Some subtitle "decoders" had a wrong category of "Parser", which `parsebin`
relies on to identify elements which do not *decode* streams but *parse* them.

This would cause such subtitle decoders to be plugged in within parsebin,
preventing the original stream to be properly used by (more efficient)
downstream decoders or subtitle renderers.

Fixes #1757

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6153>
2024-02-22 14:39:54 +00:00
Sebastian Dröge
069065adc4 subparse: Skip after the end of a valid closing tag instead of only skipping <
This is a small optimization and avoids restarting the next parsing
iteration on already accepted data.

On its own it would also fix ZDI-CAN-20968 (see previous commit) but the
previous commit independently is also a valid fix for it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4895>
2023-06-20 09:06:44 +01:00
Sebastian Dröge
97c6d7495e subparse: Look for the closing > of a tag after the opening <
Previously when fixing up subrip markip, we were looking from the start
of the remaining buffer instead. Due to how skipping over closing tags
works, the remaining buffer will still contain the closing `>` of the
previous tag so if a unexpected closing tag is found after another
closing tag, we would potentially do an out of bounds memmove().

Fixes ZDI-CAN-20968
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2662

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4895>
2023-06-20 09:06:38 +01:00
Tim-Philipp Müller
330836db8e taglist, plugins: fix compiler warnings with GLib >= 2.76
Fix compiler warnings about not using the return value when
freeing the GString segment with g_string_free(.., FALSE):

    ignoring return value of ‘g_string_free_and_steal’ declared with attribute ‘warn_unused_result’

which we get with newer GLib versions. These were all harmless.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4273>
2023-03-27 07:37:11 +00:00
Tim-Philipp Müller
8759b77a50 gst-plugins-base: re-indent with GNU indent 2.2.12
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4182>
2023-03-17 03:18:53 +00:00
Edward Hervey
3d506a0978 subparse: Properly forward segment seqnum
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3913>
2023-02-08 14:12:07 +00:00
Edward Hervey
24a0e5bdfd subparse: Fix non-closed tag handling.
Unclear what the goal was, but we could end up reading way past the next_tag.

Instead just move everything from after the end tag ('>') to the next_tag.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53040

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3340>
2022-11-05 16:19:53 +00:00
Matthew Waters
1e269a3c6d subparse: fix crash when parsing invalid timestamps in mpl2
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49245

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2989>
2022-09-07 07:20:53 +00:00
Thibault Saunier
6a4425e46a meson: Call pkgconfig.generate in the loop where we declare plugins dependencies
Removing some copy pasted code

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2970>
2022-09-01 21:17:35 +00:00
Khem Raj
ce1f1c9eff ssaparse: include required system headers for isspace() and sscanf() functions
Newer compilers ( clang 15 ) have turned stricter and errors out instead
of warning on implicit function declations

Fixes
gstssaparse.c:297:12: error: call to undeclared library function 'isspace' with type 'int (int)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    while (isspace(*t))

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2879>
2022-08-14 08:32:05 +00:00
Tim-Philipp Müller
f19f579712 samiparse: clean up some GString usage
There's no need to re-assign the return value of
g_string_append_*() functions and such to the variable
holding the GString. These return values are just for
convenience so function calls can be chained. The actual
GString pointer won't change, it's not a GList after all.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2685>
2022-07-01 17:24:52 +00:00
Tim-Philipp Müller
270d23c8e0 samiparse: micro-optimise entity handling
Avoid relocations and hard-code entity string length
in the struct, since we basically get it for free here.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2685>
2022-07-01 17:24:52 +00:00
Tim-Philipp Müller
84a3b0ef87 samiparse: fix handling of self-closing tags
We would check the wrong string (rest of line rather than element)
for the / suffix of self-closing tags, which is not only wrong but
also has atrocious performance with certain strings like the garbled
nonsense clusterfuzz feeds us, which might cause discoverer to time
out when processing garbled SAMI files.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47461

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2685>
2022-07-01 17:24:52 +00:00
Matthew Waters
0f9f179bec subparse: don't deref a potentially NULL variable
If the html SAMI data is malformed, then retrieving the attribute name
may fail.  We then cannot retrieve the attribute value.

Fixes: https://oss-fuzz.com/testcase-detail/4700130671984640
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2317>
2022-04-28 15:35:12 +10:00
Matthew Waters
c2ac57f6c9 subparse: don't try to index string with -1
If the len of the string turns out to be 0, str[len - 1] resolved to
str[-1] which is not a good idea.

Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46543
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2147>
2022-04-10 10:57:08 +10:00
Edward Hervey
b6303c46b7 subparse: Handle GAP events before buffers
Make sure we did initial negotiation and segment pushing if we get GAP events
before buffers.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1903>
2022-03-09 23:58:07 +00:00
Tim-Philipp Müller
5660743bbf subparse: don't use g_warning() for malformed input
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1009>
2021-10-19 00:12:25 +00:00
Thibault Saunier
2fd28195ca Move files from gst-plugins-base into the "subprojects/gst-plugins-base/" subdir 2021-09-24 16:13:26 -03:00