mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-03 06:56:46 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/subprojects
History
Marek Vasut 763bf9fe62 vp9decoder: Fix multiplication wraparound 
The GstVp9Picture system_frame_number is guint32, constant 1000 is guint32,
GstV4l2CodecVp9Dec v4l2_vp9_frame.*_frame_ts multiplication result is u64 .

```
u64 result = (u32)((u32)system_frame_number * (u32)1000);
```
behaves the same as
```
u64 result = (u32)(((u32)system_frame_number * (u32)1000) & 0xffffffff);
```

so in case `system_frame_number > 4294967295 / 1000`, the `result` will
wrap around. Since the `result` is really used as a cookie used to look
up V4L2 buffers related to the currently decoded frame, this wraparound
leads to visible corruption during VP9 decoding. At 30 FPS this occurs
after cca. 40 hours of playback .

Fix this by changing the 1000 from u32 to u64, i.e.:
```
u64 result = (u64)((u32)system_frame_number * (u64)1000ULL);
```
this way, the wraparound is prevented and the correct cookie is used.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5850>
2024-01-18 19:36:25 +00:00
..
gst-devtools Back to development 2023-12-18 13:52:12 +00:00
gst-docs Back to development 2023-12-18 13:52:12 +00:00
gst-editing-services Back to development 2023-12-18 13:52:12 +00:00
gst-examples Back to development 2023-12-18 13:52:12 +00:00
gst-integration-testsuites Back to development 2023-12-18 13:52:12 +00:00
gst-libav Back to development 2023-12-18 13:52:12 +00:00
gst-omx Back to development 2023-12-18 13:52:12 +00:00
gst-plugins-bad vp9decoder: Fix multiplication wraparound 2024-01-18 19:36:25 +00:00
gst-plugins-base gloverlay: Apply updated overlay coordinates correctly 2024-01-11 10:42:27 +00:00
gst-plugins-good vpxdec: Use appropriate domain and code for decoding errors 2024-01-13 18:21:41 +00:00
gst-plugins-ugly Back to development 2023-12-18 13:52:12 +00:00
gst-python Back to development 2023-12-18 13:52:12 +00:00
gst-rtsp-server Back to development 2023-12-18 13:52:12 +00:00
gstreamer Back to development 2023-12-18 13:52:12 +00:00
gstreamer-sharp Back to development 2023-12-18 13:52:12 +00:00
gstreamer-vaapi Back to development 2023-12-18 13:52:12 +00:00
macos-bison-binary macos-bison: Update to 3.8.2 and add an ARM64 build 2023-09-07 21:36:15 +00:00
packagefiles meson: Ensure that soup plugin is built on Windows 2023-07-24 16:36:56 +01:00
win-flex-bison-binaries meson: Use run_command check: true for windows binary subprojects 2022-10-19 04:05:05 +00:00
win-nasm meson: Use run_command check: true for windows binary subprojects 2022-10-19 04:05:05 +00:00
avtp.wrap subprojects/avtp: Update to latest avtp 0.2.0 2022-03-18 22:49:16 +00:00
bindinator.wrap
cairo.wrap subprojects: cairo: bump to 1.17.6 2022-09-17 22:41:40 +00:00
dav1d.wrap meson: add missing source_filename in the dav1d wrap 2023-04-10 15:12:54 +00:00
dssim.wrap
dv.wrap
expat.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00
fdk-aac.wrap
FFmpeg.wrap
fontconfig.wrap subprojects: fontconfig: bump to 2.14.0 2022-09-17 22:41:40 +00:00
freetype2.wrap Update all wraps from WrapDB 2022-09-23 11:08:06 -04:00
fribidi.wrap subprojects: fribidi: bump to 1.0.12 2022-09-17 22:41:40 +00:00
gl-headers.wrap
glib-networking.wrap subprojects: update glib-networking to 2.74.0 and switch to file wrap 2022-11-18 00:51:48 +00:00
glib.wrap subprojects: update glib to 2.74.1 2022-11-18 00:50:56 +00:00
graphene.wrap
gst-plugins-rs.wrap Back to development 2023-12-18 13:52:12 +00:00
gtk-sharp.wrap
harfbuzz.wrap subprojects: harfbuzz: bump to 5.2.0 2022-09-17 22:41:40 +00:00
json-glib.wrap Update all wraps from WrapDB 2022-09-23 11:08:06 -04:00
lame.wrap meson: Update lame to -7 which contains the def file fix 2022-12-19 01:43:08 +05:30
libdrm.wrap Update all wraps from WrapDB 2022-09-23 11:08:06 -04:00
libffi.wrap subprojects: libffi: pin to meson-3.2.9999.4 tag 2022-12-31 13:49:17 +00:00
libjpeg-turbo.wrap Update all wraps from WrapDB 2022-09-23 11:08:06 -04:00
libmicrodns.wrap subprojects: libmicrodns: bump to 0.2.0 + meson fixes 2022-09-17 22:41:40 +00:00
libnice.wrap webrtc: Change requirement to libnice 0.1.20 2023-01-07 16:03:23 +00:00
libopenjp2.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00
libpng.wrap subprojects/libpng: Update to latest wrap file 2022-01-28 02:01:39 +05:30
libpsl.wrap meson: Ensure that soup plugin is built on Windows 2023-07-24 16:36:56 +01:00
libsoup.wrap subprojects: switch libsoup to a file wrap 2022-11-18 00:56:25 +00:00
libwpe.wrap
libxml2.wrap libxml2: update to 2.10.3-4 2023-07-24 15:36:34 +01:00
ogg.wrap Update all wraps from WrapDB 2022-09-23 11:08:06 -04:00
openh264.wrap Update all wraps from WrapDB 2022-09-23 11:08:06 -04:00
opus.wrap
orc.wrap subprojects: bump orc to 0.4.34 2023-06-15 10:14:55 +01:00
pango.wrap meson: Add a patch that fixes pangocairo usage in gst-plugins-rs 2022-12-17 07:37:03 +05:30
pixman.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00
proxy-libintl.wrap Update proxy-libintl wrap to 0.4 2022-04-22 15:36:40 +00:00
pycairo.wrap
pygobject.wrap meson: Allow sysdeps to be forced as fallback subprojects 2023-02-08 13:42:59 +00:00
sqlite3.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00
vorbis.wrap meson: Update some wraps, remove unused wraps 2022-07-16 06:16:17 +00:00
webrtc-audio-processing.wrap
wpebackend-fdo.wrap
x264.wrap
zlib.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00