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69 Commits

Author SHA1 Message Date
Andreas Rheinhardt
d26198ada3 avcodec/g2meet, mjpegdec: Factor out common VLC initialization code 
While just at it, remove the nb_codes parameter: It is redundant
(the number of codes is implicitly contained in the array containing how
many entries of a specific size there are) and for this reason it might
even be wrong, so it is better to check what is actually used instead.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-02-23 10:14:25 +01:00
Anton Khirnov
15baa0c1ac lavc/mjpegdec: cosmetics, org->orig 2021-01-01 14:33:47 +01:00
Anton Khirnov
e15371061d lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 
They are not properly namespaced and not intended for public use.
 2021-01-01 14:14:57 +01:00
Anton Khirnov
19ce064239 smvjpegdec: merge into mjpegdec 
SMVJPEG stores frames as slices of a big JPEG image. The decoder is
implemented as a wrapper that instantiates a full internal MJPEG
decoder, then forwards the decoded frames with offset data pointers.
This is unnecessarily complex and fragile, not supporting useful decoder
capabilities like direct rendering.

Re-implement the decoder inside the MJPEG decoder, which is accomplished
by returning each decoded frame multiple times, setting cropping
information appropriately on each instance.

One peculiar aspect of the previous design is that since
- the smvjpeg decoder returns one frame per input packet
- there are multiple frames in each packets (the aformentioned slices)
the demuxer needs to return each packet multiple times.
This is now also eliminated - the demuxer now returns each packet
exactly once, with the duration set to the number of frames it decodes
to.

This also removes one of the last remaining internal uses of the old
video decoding API.
 2020-12-10 10:07:09 +01:00
Anton Khirnov
e9a2a87773 mjpegdec: convert to receive_frame() 
This will be useful in the following commit.
 2020-12-10 10:03:58 +01:00
Nick Renieris
40abff05d2 lavc/mjpegdec: Decode Huffman-coded lossless JPEGs embedded in DNGs 
Main image data in DNGs is usually comprised of tiles, each of which is a Huffman-encoded lossless JPEG.

Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs without issues.

Signed-off-by: Nick Renieris <velocityra@gmail.com>
 2019-09-02 09:26:52 +02:00
Michael Niedermayer
8d381b57fd avcodec/mjpegdec: Check input buffer size. 
Fixes: Timeout
Fixes: 6381/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-5665032743419904

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-12 23:52:59 +02:00
Mark Thompson
6c0bfa30c0 mjpegdec: Add hwaccel hooks 
Also adds some extra fields to the main context structure that may
be needed by a hwaccel decoder.
 2018-02-21 23:38:10 +00:00
Mateusz
149268b47c fix MSVC compilation errors 
After commit 3701d49 'error_resilience: remove avpriv_atomic usage'
we have included windows.h in much more files and we should
avoid conflicts with defines/function declarations.

Signed-off-by: Mateusz Brzostek <mateuszb@poczta.onet.pl>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-12-10 14:43:01 +01:00
Martin Vignali
cbbec68847 libavcodec/blockdsp : add AVX version 
Also modify the required alignment, to 32 instead of 16
for several codecs

Signed-off-by: James Almer <jamrial@gmail.com>
 2017-10-03 19:47:37 -03:00
Derek Buitenhuis
9e02f35f6a mjpeg: Add support for ICC side data 
JPEGs store embedded profiles under the APP2 marker, signified
with a "ICC_PROFILE" null-terminated string header, and can be
split across multiple APP2 markers, out of order.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2017-08-25 13:44:41 +01:00
Michael Niedermayer
23f3f92361 avcodec/mjpegdec: quant_matrixes can be up to 65535, use uint16_t 
Fixes invalid shift
Fixes: 870/clusterfuzz-testcase-5649105424482304

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-03-20 01:38:04 +01:00
Michael Niedermayer
dde6b2a355 avcodec/mjpegdec: dont try to combine fields for decimated multiscope 2 material 
Fixes Ticket4535

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-06-21 02:53:06 +02:00
Michael Niedermayer
e15455891b avcodec/mjpegdec: Change upscale_* to an array instead of a bitmask 
This allows storing integer factors instead of just 0 and 1

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-03-18 23:13:44 +01:00
Michael Niedermayer
d5a3a20d1e avcodec/mjpegdec: simplify chroma_height calculation 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-10-21 21:36:17 +02:00
Michael Niedermayer
581b5f0b9b Merge commit 'e3fcb14347466095839c2a3c47ebecff02da891e' 
* commit 'e3fcb14347466095839c2a3c47ebecff02da891e':
  dsputil: Split off IDCT bits into their own context

Conflicts:
	configure
	libavcodec/aic.c
	libavcodec/arm/Makefile
	libavcodec/arm/dsputil_init_arm.c
	libavcodec/arm/dsputil_init_armv6.c
	libavcodec/asvdec.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.c
	libavcodec/dvdec.c
	libavcodec/dxva2_mpeg2.c
	libavcodec/intrax8.c
	libavcodec/mdec.c
	libavcodec/mjpegdec.c
	libavcodec/mjpegenc_common.h
	libavcodec/mpegvideo.c
	libavcodec/ppc/dsputil_altivec.h
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/ppc/idctdsp.c
	libavcodec/x86/Makefile
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/dsputil_mmx.c
	libavcodec/x86/dsputil_x86.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-07-01 15:22:11 +02:00
Diego Biurrun
e3fcb14347 dsputil: Split off IDCT bits into their own context 2014-06-30 07:58:46 -07:00
Michael Niedermayer
2b05db4f81 Merge commit 'e74433a8e6fc00c8dbde293c97a3e45384c2c1d9' 
* commit 'e74433a8e6fc00c8dbde293c97a3e45384c2c1d9':
  dsputil: Split clear_block*/fill_block* off into a separate context

Conflicts:
	configure
	libavcodec/asvdec.c
	libavcodec/dnxhddec.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.h
	libavcodec/eamad.c
	libavcodec/intrax8.c
	libavcodec/mjpegdec.c
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/vc1dec.c
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-19 04:54:38 +02:00
Diego Biurrun
e74433a8e6 dsputil: Split clear_block*/fill_block* off into a separate context 2014-06-18 14:07:23 -07:00
Michael Niedermayer
254f653b24 avcodec/jpeglsdec: add PAL8 support 
Fixes Ticket3478

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-01 13:43:44 +02:00
Michael Niedermayer
681e72a668 avcodec/mjpegdec: parse adobe_transform 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-27 20:13:48 +01:00
Michael Niedermayer
2884688bd5 avcodec/mjpegdec: pass into ff_mjpeg_decode_sos() and check bitmask size 
Fixes: heap array overread
Fixes: asan_heap-oob_149b2bc_6577_m1.mxg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-01-31 18:34:08 +01:00
Kirill Gavrilov
e9e7e68516 mjpegdec: parse JPS extension and save relevant stereo3d information 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-01-30 00:17:02 +01:00
Michael Niedermayer
cab5315519 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  mjpegdec: apply flipping after decoding, not before

Conflicts:
	libavcodec/mjpegdec.c
	libavcodec/mjpegdec.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-01-09 15:46:31 +01:00
Anton Khirnov
d48132b7de mjpegdec: apply flipping after decoding, not before 
This is simpler and removes a silly restriction on edges being present.
 2014-01-09 09:56:51 +01:00
Michael Niedermayer
6393038676 Merge commit 'e2274aa555f023e4f4e4819bf29b2d7e0adec7d5' 
* commit 'e2274aa555f023e4f4e4819bf29b2d7e0adec7d5':
  mjpegdec: use the AVFrame API properly.

Conflicts:
	libavcodec/mjpegdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-09 12:42:10 +01:00
Anton Khirnov
e2274aa555 mjpegdec: use the AVFrame API properly. 2013-12-09 08:40:29 +01:00
Thilo Borgmann
bb4e1b4cf9 avcodec/mjpegdec: Read EXIF metadata in JPEG input. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-08-13 00:30:34 +02:00
Michael Niedermayer
96747e6cbe mjpegdec: parse app-xfrm 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-11 16:08:49 +02:00
Michael Niedermayer
7afa68d37d mjpegdec: parse app-colr 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-11 16:08:36 +02:00
Michael Niedermayer
15cee5e562 mjpegdec: Fix used quant index for gbr 
Fixes Ticket1651

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-11 02:31:58 +02:00
Ronald S. Bultje
28bc406c84 mjpeg: Use hpeldsp instead of dsputil for half-pel functions 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-04-19 23:18:38 +03:00
Ronald S. Bultje
e0a8f31591 mjpeg: use hpeldsp instead of dsputil for half-pel functions. 2013-03-13 03:59:10 +01:00
Michael Niedermayer
ac8987591f Merge commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f' 
* commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f':
  Drop DCTELEM typedef

Conflicts:
	libavcodec/alpha/dsputil_alpha.h
	libavcodec/alpha/motion_est_alpha.c
	libavcodec/arm/dsputil_init_armv6.c
	libavcodec/bfin/dsputil_bfin.h
	libavcodec/bfin/pixels_bfin.S
	libavcodec/cavs.c
	libavcodec/cavsdec.c
	libavcodec/dct-test.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.c
	libavcodec/dsputil.h
	libavcodec/dsputil_template.c
	libavcodec/eamad.c
	libavcodec/h264_cavlc.c
	libavcodec/h264idct_template.c
	libavcodec/mpeg12.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/ppc/dsputil_altivec.c
	libavcodec/proresdsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-23 17:44:56 +01:00
Diego Biurrun
88bd7fdc82 Drop DCTELEM typedef 
It does not help as an abstraction and adds dsputil dependencies.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2013-01-22 18:32:56 -08:00
Michael Niedermayer
fc1152de41 Merge commit 'df9b9567518f2840d79a4a96b447ebe1aa326408' 
* commit 'df9b9567518f2840d79a4a96b447ebe1aa326408':
  lavc: fix decode_frame() third parameter semantics for video decoders

Conflicts:
	libavcodec/cscd.c
	libavcodec/eamad.c
	libavcodec/ffv1dec.c
	libavcodec/gifdec.c
	libavcodec/h264.c
	libavcodec/iff.c
	libavcodec/mjpegdec.c
	libavcodec/pcx.c
	libavcodec/vp56.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-05 17:20:19 +01:00
Anton Khirnov
df9b956751 lavc: fix decode_frame() third parameter semantics for video decoders 
It's got_frame, not data size
 2012-12-04 21:45:36 +01:00
Lou Logan
6851130fd6 cosmetics: minor libavcodec spelling errors 
Also update some common misspelled words in patcheck

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-06-29 14:54:15 +02:00
Carl Eugen Hoyos
d185278c36 Support decoding of some unusual jpeg samples. 
Avoid unsupported pix_fmts by upscaling chroma.

Fixes ticket #878.
 2012-01-06 00:51:31 +01:00
Carl Eugen Hoyos
387d86077f Support decoding yuv442 and yuv421 jpeg images. 
Fixes ticket #787.
 2011-12-27 18:21:38 +01:00
Michael Niedermayer
0ed7bc49a3 Merge remote-tracking branch 'qatar/master' 
* qatar/master: (31 commits)
  libx264: set default thread count to 0 (auto)
  lavc: cosmetics, group deprecated codec flags
  mpeg12: add 'scan_offset' private option.
  h263/p encoder: add 'structured_slices' private option.
  h263/p encoder: add 'obmc' private option.
  h263p encoder: add 'aiv' private option.
  h263p encoder: add 'umv' private option.
  mpeg12enc/mpeg4videoenc: add 'alternate_scan' private option.
  mjpegdec: add 'extern_huff' private option.
  mpeg4enc: add 'data_partitioning' private option.
  snow: add 'memc_only' private option.
  libx264: add 'mbtree' private option.
  libx264: add 'psy' private option.
  libmp3lame: add 'reservoir' private option.
  mpeg2enc: add 'non_linear_quant' private option
  mpeg12enc: add drop_frame_timecode private option.
  mpeg12enc: add intra_vlc private option.
  VC1: Support dynamic dimension changes
  mjpeg: treat external huffman table setup failure as codec init failure if external huffman table use requested
  lavc: deprecate CODEC_FLAG2_BRDO
  ...

Conflicts:
	avconv.c
	libavcodec/libmp3lame.c
	libavcodec/libx264.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.h
	libavcodec/vc1.c
	libavcodec/vc1dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-01 00:01:21 +02:00
Anton Khirnov
1f0c7020a1 mjpegdec: add 'extern_huff' private option. 
Deprecate CODEC_FLAG_EXTERN_HUFF
 2011-08-31 13:25:54 +02:00
anatoly
dd1e5bfd5e Add support for picture_ptr field in MJpegDecodeContext 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-26 22:06:13 +02:00
anatoly
7e6a9e6444 Move MJPEG's input buffer preprocessing in separate public function 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-26 22:06:13 +02:00
anatoly
34686566f3 Support reference picture defined by bitmask in MJPEG's SOS decoder 
With cleanup & simplification by me

Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-26 22:06:13 +02:00
anatoly
e0e3b8b297 Add support for picture_ptr field in MJpegDecodeContext 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-03-30 07:18:34 +02:00
anatoly
f16055eedf Move MJPEG's input buffer preprocessing in separate public function 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-03-30 07:18:34 +02:00
anatoly
8f0bd2c07d Support reference picture defined by bitmask in MJPEG's SOS decoder 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-03-30 07:18:34 +02:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Michael Niedermayer
5675a11f92 Add a seperate VLC table for progressive jpeg so we dont have to subtract 16 in the inner loop. 
Originally committed as revision 25545 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-10-21 22:44:41 +00:00