Luca Barbato
0f64cd1e81
mjpegdec: more meaningful return values
12 years ago
Michael Niedermayer
d9d0c1ccc3
mjpegdec: support AVRn interlaced
...
Fixes Ticket1527
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
12 years ago
Michael Niedermayer
4eae08b438
mjpegdec: use av_assert
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Paul B Mahol
137e80817d
lavc: build some codecs only if they are actually enabled
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Saves few bytes if only some of them in same file are enabled.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
13 years ago
Paul B Mahol
225489f19b
mjpegdec: remove superfluous "mjpeg "
...
Signed-off-by: Paul B Mahol <onemda@gmail.com>
13 years ago
Michael Niedermayer
5e50a5724b
Revert "removing lowres support"
...
There have been multiple user complaints about loosing this feature
while its not clear the 3% speedloss claims where real or fabricated.
My own testing indicates no statistically significant speed difference
both with mpeg2 and mpeg4, and if at all the code with lowres support
is a tiny bit faster than without.
This reverts commit 92ef4be4ab
, reversing
changes made to 2e07f42957
.
Conflicts:
cmdutils.c
libavcodec/arm/vp8dsp_init_arm.c
libavcodec/mpegvideo.c
libavcodec/mpegvideo.h
libavutil/arm/Makefile
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Ronald S. Bultje
5eec5a79da
jpeg: handle progressive in second field of interlaced.
...
Progressive data is allocated later in decode_sof(), not allocating
that data leads to NULL dereferences.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
13 years ago
Michael Niedermayer
70d54392f5
lowres2 support.
...
The new lowres support is limited to decoders where lowres decoding
is possible in high quality.
I was not able to measure any speed difference, but if one is found
the 2-3 lines that might affect speed can be made compile time conditional
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
9a4f5b7616
mjpegbdec: check SOS/SOF ordering.
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Fixes null ptr dereference
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Mans Rullgard
2bcbd98459
Remove lowres video decoding
...
This feature is complex, of questionable utility, and slows down
normal decoding.
Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years ago
Michael Niedermayer
0cd17a6291
mjpeg: fix crash with lowres and flipped images
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Fixes Ticket1155
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
8307025467
mjpegdec: Fix "assignment from incompatible pointer type" warnings
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Carl Eugen Hoyos
282ec7289d
Do not try to use lowres for unusual jpg subsampling.
...
Fixes ticket #1144 .
13 years ago
Diego Biurrun
a92be9b856
Replace memset(0) by zero initializations.
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Also remove one pointless zero initialization in rangecoder.c.
13 years ago
Michael Niedermayer
08c37a10e9
mjpegdec: check h/v_count.
...
Fixes FPE
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Carl Eugen Hoyos
7594ee2e6e
jpg: fix colors for sequential RGB
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Fixes Ticket850
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
ecc31630f9
mjpegb: Detect changing nb of planes in interlaced video.
...
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Alex Converse
3574a85ce5
Replace computations of remaining bits with calls to get_bits_left().
13 years ago
Michael Niedermayer
a3f5ee297a
mjpeg: Check for interlaced progressive frames
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Fixes null pointer dereference.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
1c4717be4f
mjpegdec: use correct variable in av_log invocation
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libavcodec/mjpegdec.c:1463: warning: format ‘%x’ expects type ‘unsigned int’, but argument 5 has type ‘const uint8_t *’
13 years ago
Ronald S. Bultje
ab492ca2ab
mjpeg: abort decoding if packet is too large.
...
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
13 years ago
Martin Storsjö
9cf0841ef3
dsputil: Add ff_ prefix to the dsputil*_init* functions
...
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Martin Storsjö
e96b4a53df
vlc/rl: Add ff_ prefix to the nonstatic symbols
...
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Reimar Döffinger
0880503fbb
mjpegdec: use av_fast_padded_malloc()
...
also check for allocation failure
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
13 years ago
Anton Khirnov
99ace37e68
lavc: remove disabled FF_API_MJPEG_GLOBAL_OPTS cruft.
13 years ago
Reimar Döffinger
3b55429d56
Add and use av_fast_padded_malloc.
...
The same as av_fast_malloc but uses av_mallocz and keeps extra
always-0 padding.
This does not mean the memory will be 0-initialized after each call,
but actually only after each growth of the buffer.
However this makes sure that
a) all data anywhere in the buffer is always initialized
b) the padding is always 0
c) the user does not have to bother with adding the padding themselves
Fixes another valgrind warning about use of uninitialized data,
this time with fate-vsynth1-jpegls.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
13 years ago
Michael Niedermayer
a91f206665
ljpegdec: reset restart interval for each plane of a non interleaved file.
...
Fixes Ticket907
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
1843e6c8aa
thp: Fix handling of restart interval
...
Fixes Ticket903
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Carl Eugen Hoyos
2c90204598
Fix decoding of progressive jpgs with unusual pixel formats.
...
Fixes ticket #892 .
13 years ago
Michael Niedermayer
24be30de64
ljpegdec: Fix the left column of rgb24 decoding
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Fixes Ticket894
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
anonymous
7e2ba2df28
mjpeg: update whitespaces to qatar
13 years ago
Michael Niedermayer
b143562639
ljpegdec: Support MCU in ljpeg_decode_yuv_scan()
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Daniel Huang
8549cf073b
mjpegdec: K&R formatting cosmetics
...
Signed-off-by: Diego Biurrun <diego@biurrun.de>
13 years ago
Michael Niedermayer
bbe25b4f3e
ljpegdec: support non zero MCU for RGB. 2nd try
...
Fixes Ticket875
Compared to patch 1 this fixes a bright line at the right side.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
12d8340f16
ljpeg: Fix bits != 8 or 16 support
...
Fixes 2nd half of Ticket889
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Carl Eugen Hoyos
d185278c36
Support decoding of some unusual jpeg samples.
...
Avoid unsupported pix_fmts by upscaling chroma.
Fixes ticket #878 .
13 years ago
Janne Grunau
e268a352af
mjpegdec: parse RSTn to prevent skipping other data in mjpeg_decode_scan
...
Check explicitly if enough bits are left to prevent an infinite loop
when the bitstream buffer is not followed by zero-padding.
Based on patches by Michael Niedermayer <michaelni@gmx.at>.
13 years ago
Michael Niedermayer
15b219fae9
jpegdec: Fix vlc table check for progressive jpegs.
...
Fixes Ticket834
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
45552371e3
jpegdec: non interleaved rgb ljpeg support.
...
Fixes Ticket856
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
465eb0eb48
jpegdec: 9-16 bit yuv/gray ljpeg support.
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
24964f21e4
jpegdec: Only enable rgb mode when there are 3 components.
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
b0143da806
ljpegdec: fix point transform injection.
...
Fix Ticket842
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Carl Eugen Hoyos
387d86077f
Support decoding yuv442 and yuv421 jpeg images.
...
Fixes ticket #787 .
13 years ago
Alex Converse
4bf3c8f226
mov: Don't stick the QuickTime field ordering atom in extradata.
...
The 'fiel' atoms can be found in H.264 tracks clobbering the extradata.
MJPEG supports non field based extradata, and this data should be
preserved when copying.
13 years ago
Michael Niedermayer
484b1cdd53
jpegdec: check return value of mjpeg_decode_dc()
...
Fixes Ticket754
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
f129f593f7
ljpeg: Check that lowres is 0 as lowres is not possible with ljpeg.
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
da9cea77e3
Fix a bunch of common typos.
13 years ago
Carl Eugen Hoyos
51d7cd3596
Decode RGB ljpeg to RGB24.
...
No alpha channel is decoded, the output used to be completely transparent.
13 years ago
Michael Niedermayer
c36edf3899
jpeg: rgb support
...
Fixes Ticket297
Based on a patch by Carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago