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106 commits

Author SHA1 Message Date
Mark Nauwelaerts
6f84bbe34e jpegdec: fix skipping extra 0xff markers 
Fixes #623585.
 2010-07-05 13:20:08 +02:00
Tim-Philipp Müller
7cbfe3eae1 jpegdec: fix memory leak 
Don't leak result of gst_adapter_take(). There are most likely
smarter things we can do, but let's keep things simple for the
release.

Fixes #623172.
 2010-07-02 15:10:24 +01:00
Mark Nauwelaerts
a391bf52cc jpegdec: use libjpeg scatter-gather operation to avoid data copying 
Fixes #583047 (more).
 2010-06-14 15:17:16 +02:00
Mark Nauwelaerts
58fbcf01e5 jpegdec: optimize buffer handling when parsing 
Use an adapter to collect incoming data, and use adapter API to scan and peek.

Fixes #583047.
 2010-06-14 15:17:16 +02:00
Mark Nauwelaerts
fb3a8cd47f jpegdec: fix variable init 2010-06-01 15:56:41 +02:00
Thiago Santos
bca4ca631f jpegdec: Adds 8bit grayscale support 
Adds decoding support for jpeg images in 8 bit grayscale format.
 2010-06-01 09:06:04 -03:00
Wim Taymans
3cfd7968b4 jpegdec: increase acceptable output sizes 
We can perfectly decode 1x1 images so lower the min width and height to 1.

Fixes #618392
 2010-05-13 12:16:59 +02:00
Mark Nauwelaerts
52c71352e0 jpegdec: optimise buffer scanning 
Specifically, when needing more data, do not rescan from start next time
around, but resume from last position.

See also #583047.
 2010-04-30 17:49:24 +02:00
Mark Nauwelaerts
761b883f2c jpegdec: disregard superfluous lines when indirect decoding 2010-04-30 17:49:15 +02:00
Mark Nauwelaerts
78a2b22ed5 jpegdec: add support for RGB and grayscale color space 
Also refactor src caps negotiation and setting.
 2010-04-30 17:49:11 +02:00
Mark Nauwelaerts
cec48383b1 jpegdec: more sanity checks on input 
Specifically, verify input components / colour space is as code
subsequently expects, thereby avoiding crashes or otherwise bogus output.
Presently, that means 3 components YCbCr colour space, and somewhat
limited sampling factors.

Fixes #600553.
 2010-04-30 17:49:03 +02:00
Tim-Philipp Müller
6b2a0c7c46 jpegdec: don't crash if jpeg image contains more than three components 
Our code currently only handles a maximum of 3 components, so error
out for now if the image has more components than that.

Fixes #604106.
 2010-04-25 23:15:42 +01:00
Stefan Kost
7e5d4b0fa9 jpegdec: move macro to c source 
One less semi public symbol without namespace prefix in the headers.
 2010-04-08 13:40:36 +03:00
Benjamin Otte
cccfeaa59c gst_element_class_set_details => gst_element_class_set_details_simple 2010-03-18 14:32:00 +01:00
Benjamin Otte
1055aaa9cb Add -Wredundant-decls warning flag 
Also fix compile issues
 2010-03-17 19:35:10 +01:00
Benjamin Otte
3342b1679e Add -Wmissing-declarations -Wmissing-prototypes warning flags 
And fix all the warnings.
 2010-03-17 18:23:28 +01:00
David Hoyt
ad05705afb jpegdec: Fix invalid memory access by first checking and then reading 
Fixes bug #610483.
 2010-02-22 20:55:29 +01:00
Stefan Kost
a9f5bbe1ff jpeg: don't directly access message, some message have args 
This caused bogus messages, such as reported in bug #607471.
 2010-02-02 17:23:49 +02:00
Wim Taymans
384c4a2495 jpegdec: reset segment info after flush 
Reset the segment info after a flush. We use the segment for handling QoS and if
we don't reset the segment, QoS is basically disabled after a flushing seek.
 2009-12-01 19:25:04 +01:00
Tim-Philipp Müller
7af7d93b27 jpegdec: free temporary buffer when changing state to NULL 
Free temporary allocations in the state change function and not
only when the object is finalised.
 2009-11-09 15:20:00 +00:00
Tim-Philipp Müller
26e7fe27d7 jpegdec: only allocate as much temporary memory as needed for indirect decoding 
When we can't decode directly into the output buffer, make our temp buffers
only as big as needed instead of allocating for the worst case scenario (well,
we still alloc more than strictly needed for some cases, but significantly
less than before).
 2009-11-09 15:18:58 +00:00
Stefan Kost
e3e910e971 jpegdec: don't allocate big arrays on the stack 
Add the arrays to the instance data and allocate on first use.
 2009-11-03 17:49:24 +02:00
Tim-Philipp Müller
c83ea23a03 jpegdec: fix branch hints 
Remove inappropriate branching hints and add some new ones.
 2009-10-16 13:41:45 +01:00
Tim-Philipp Müller
4fb3f2519c jpegdec: fix regression in indirect decode path 
Revert variable name back to what it was before the G_LIKELY was
added (in commit 69c24fb9). The code works better that way.
 2009-10-16 13:36:42 +01:00
Tim-Philipp Müller
0c92e70f6c jpegdec: fix regression with certain formats 
Fix regression introduced by previous commit (#598517).
 2009-10-16 13:00:12 +01:00
Tim-Philipp Müller
30cb82da96 jpegdec: don't use decompress structure members we shouldn't be using 2009-10-16 13:00:12 +01:00
Tim-Philipp Müller
87bd79f4ba jpegdec: fix bogus warning about discont flag on first buffer 
The very first buffer should always have the DISCONT flag set, no
need to warn about that. Only warn if we get a DISCONT buffer in
non-packetised mode and we already have some data.
 2009-10-13 01:10:59 +01:00
Tim-Philipp Müller
6ae6af9dab jpegdec: fix crash for unusual vertical chroma subsampling factors 
Fixes #597351.
 2009-10-13 01:10:59 +01:00
Josep Torra
c581e6f205 jpegdec: fixes warning building in snow leopard 2009-10-10 00:37:08 +02:00
Stefan Kost
86b8935b07 jpegdec: comment/logging cleanups and more branch guides 2009-10-06 17:46:49 +03:00
Stefan Kost
b1feeee166 jpegdec: don't leak output buffers on decoding errors 
The setjmp handles libjpeg error. Free the outputbffer if we don't need it.
 2009-09-30 09:19:48 +03:00
Tim-Philipp Müller
477cb58640 jpegdec: fix 'unused variable' compiler warning when compiling with GST_DISABLE_GST_DEBUG 2009-09-29 00:01:59 +01:00
Stefan Kost
69c24fb991 jpeg: handle more libjpeg return values, add some more branch hints 
Also remove unused size variable in _chain().
 2009-09-28 17:25:35 +03:00
Alessandro Decina
195883b30a Fix compile warnings with gcc 4.0.1. 2009-09-22 15:04:36 +02:00
Stefan Kost
253f43203d jpegdec: add a G_UNLIKELY and put perf-cat log to code path that copies 2009-09-21 16:07:50 +03:00
Edward Hervey
65d90baf84 jpegdec: Avoid unnecessary processing until we have a full picture. 
This is for non-packetized mode, when we know the upstream size in bytes.
 2009-09-03 17:40:20 +02:00
Stefan Kost
a07a575209 jpeg: use longer macro names to not clash with some stupid windows defines 
libjpeg headers pull some windows system inlcudes (on windows) that contain a
define for DEFAULT_QUALITY.
 2009-07-30 17:57:53 +03:00
Mark Nauwelaerts
7a89fb0468 jpegdec: when scanning for 0xff marker ends, ensure desired result 
Otherwise, any non 0xff byte at end of data would be mistaken for
a tag byte, and in case of a frame_len 0 tag subsequently lead to an
infinite loop.
 2009-07-28 16:18:38 +02:00
Stefan Kost
11c93fc1df jpeg: code cleanups for encoder 
Remove some disabled code in encoder. Try #if 0'ed code and add comments about
why it is disabled. Move idct-method enum to jpeg.c and use in both encoder and
decoder. Add idct-method property to encoder.
 2009-07-21 10:04:36 +03:00
Philippe Normand
a0de8567ca jpegdec: bump max size to 65535x65535 
Remove artificial jpeg image limits.
Fixes #583048.
 2009-05-21 23:39:13 +02:00
Arnout Vandecappelle
99efbfcf4d jpegdec: refactored gst_jpeg_dec_parse_image_data 
Fixes #579808
 2009-05-06 13:22:51 +02:00
Arnout Vandecappelle
788986e269 jpegdec: support additional 0xff before end marker. 
JPEG markers may be preceded by additional 0xff.  jpegdec should
skip over these, even before the end marker.
See #579808
 2009-05-06 13:11:53 +02:00
Tim-Philipp Müller
8d8e9af0a8 jpegdec: fix warning for still images by not trying to divide by 0 
Don't pass a 0 divisor to gst_util_uint64_scale(), or it will complain
in the single image case where fps=0/1 (are we supposed to differentiate
between no fps=still image and fps=0/1=variable rate here btw?)
 2009-04-20 19:42:13 +01:00
Tim-Philipp Müller
e14bae6637 jpegdec: use slightly more adaptive formula for QoS 
Should work at least a tad better if the decoder can't keep up, and
should also spread dropped frames a bit more evenly over time.
 2009-04-09 11:34:19 +01:00
Tim-Philipp Müller
f1fb1f80fa jpegdec: demote some log message from DEBUG to LOG 
And log decoder object.
 2009-04-02 00:05:14 +01:00
Tim-Philipp Müller
00c4b0b17a jpegdec: implement basic QoS 
Don't decode frames that are going to be too late anyway.
 2009-04-01 21:15:02 +01:00
Tim-Philipp Müller
ab1bbcd58d jpegdec: put GstSegment inside the element struct instead of allocating it separately 2009-03-25 10:36:49 +00:00
Stefan Kost
eb89143219 Add examples for the jpeg elements. 2009-01-29 10:12:43 +02:00
Mark Nauwelaerts
173741c10c ext/jpeg/gstjpegdec.c: Align documentation with reality. 
Original commit message from CVS:
* ext/jpeg/gstjpegdec.c:
Align documentation with reality.
 2008-07-14 16:28:25 +00:00
Edward Hervey
badcd298cc ext/jpeg/gstjpegdec.c: Actually drop the buffers which are outside the currently configured segment instead of just e... 
Original commit message from CVS:
* ext/jpeg/gstjpegdec.c: (gst_jpeg_dec_chain):
Actually drop the buffers which are outside the currently configured
segment instead of just emitting a WARNING.
 2007-12-16 23:43:46 +00:00