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Michael Olbrich 59290feca4 jpegdec: decode the correct number of lines for interlaced frames 
For interlaced jpeg, gst_jpeg_dec_decode_direct() is called twice, once for each
field. In this case, stride[n] is plane_stride[n] * 2 to ensure that only every
other line is written. So the loop must stop at height / num_fields.

If the frame is really interlaced then continuing beyound this, is not harmful,
because jpeg_read_raw_data() will do nothing and return 0, so am info message is
printed.

However, if the frame is not actually interlaced, just misdetected as interlaced
then there is still data available from the second half of the frame. Now
line[0][j] is set to the scratch buffer. If the scratch buffer is not allocated
(because the height is a multiple of v_samp[0] * DCTSIZE) then the result is a
segfault due to a null-pointer dereference.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4696>
2023-05-25 18:34:34 +00:00
..
gst-devtools validate: Add a way to avoid checking property value after setting it 2023-04-26 00:03:06 +00:00
gst-docs docs: tutorials: fix 0.10-isms in "Shortcutting the pipeline" 2023-05-23 23:48:27 +00:00
gst-editing-services ges: discoverer-manager: Don't mark signals as action signals 2023-05-09 18:19:11 +00:00
gst-examples webrtc_sendrecv.py: Add AV1 support when creating the offer 2023-05-17 16:20:36 +00:00
gst-integration-testsuites validate: remove known issue for mxfdemux that's fixed now 2023-05-25 16:07:26 +00:00
gst-libav avviddec: Temporarily unlock stream lock while flushing buffers 2023-05-13 10:20:32 +00:00
gst-omx doc: Avoid shelling out to hotdoc to generate plugins config files 2023-04-25 02:57:55 +00:00
gst-plugins-bad d3d11videosink: Fix error on pause and play 2023-05-25 13:24:43 +00:00
gst-plugins-base videodecoder: Only use subframes internal values in subframe mode 2023-05-24 18:50:56 +00:00
gst-plugins-good jpegdec: decode the correct number of lines for interlaced frames 2023-05-25 18:34:34 +00:00
gst-plugins-ugly README.md: fix current version 2023-05-18 06:25:50 +00:00
gst-python gst-python: overrides: provide default to Gst.init() 2023-05-25 16:32:44 +00:00
gst-rtsp-server rtsp-server: media-factory: Make sure a shared media is actually still usable 2023-05-19 11:09:48 +00:00
gstreamer ptp: Parse PTP messages in the helper process and filter earlier 2023-05-24 14:16:23 +00:00
gstreamer-sharp sharp: Mark _reserved fields as padding 2023-04-29 21:52:19 -04:00
gstreamer-vaapi meson: Fix libdrm and vaapi configure checks 2023-04-28 15:21:10 +05:30
macos-bison-binary macos-bison-binary: Remove warning when running on arm64 2022-12-16 23:58:07 +00:00
packagefiles/pango-1.50.12 meson: Add a patch that fixes pangocairo usage in gst-plugins-rs 2022-12-17 07:37:03 +05:30
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
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 2023-04-03 14:29:36 +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 gst-plugins-rs: Track main branch again 2023-01-24 19:08:50 +00:00
gtk-sharp.wrap
gtk.wrap meson: Use gtk tarball for the subproject wrap 2023-02-01 06:29:11 +00:00
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
libgudev.wrap meson: Add a wrap file for libgudev 2023-04-19 22:47:19 +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
libpsl.wrap
libsoup.wrap subprojects: switch libsoup to a file wrap 2022-11-18 00:56:25 +00:00
libsrtp2.wrap subprojects: Update libsrtp2 wrap to v2.5.0 2023-02-01 10:34:35 +00:00
libwpe.wrap
libxml2.wrap libxml2.wrap: update to latest version 2023-01-25 11:38:52 +00:00
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: orc: bump to 0.4.33 2022-10-31 23:50:28 +00:00
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
pycairo.wrap
pygobject.wrap meson: Allow sysdeps to be forced as fallback subprojects 2023-02-06 09:26:02 +00:00
sqlite3.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00
vorbis.wrap
webrtc-audio-processing.wrap
wpebackend-fdo.wrap
x264.wrap
zlib.wrap meson: Update some more wraps 2022-12-10 15:13:09 +00:00