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77 Commits

Author SHA1 Message Date
Diego Biurrun
a25dac976a Use bitstream_init8() where appropriate 2017-02-07 18:27:21 +01:00
Alexandra Hájková
9f78e3a46d svq1dec: Convert to the new bitstream reader 2016-11-24 11:22:12 +01:00
Diego Biurrun
21e500ba64 svq1dec: Change type of array pitch parameters to ptrdiff_t 
ptrdiff_t is the correct type for array pitches and similar.
 2016-09-04 11:57:15 +02:00
Vittorio Giovara
41ed7ab45f cosmetics: Fix spelling mistakes 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 18:16:21 +02:00
Diego Biurrun
0f40c90984 Drop pointless assert.h #includes 2016-05-03 15:45:10 +02:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Vittorio Giovara
7c6eb0a1b7 lavc: AV-prefix all codec flags 
Convert doxygen to multiline and express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Vittorio Giovara
6a85dfc830 lavc: Replace av_dlog and tprintf with internal macros 2015-04-19 12:41:59 +01:00
Luca Barbato
9b8c8a9395 svq1dec: Validate the stages value strictly 
It can be less than -1.

Bug-Id: CID 1194397 / CID 1194398
CC: libav-stable@libav.org
 2015-02-03 15:23:21 +00:00
Michael Niedermayer
5a82ad644f svq1dec: Unbreak the scratch buffer allocation 
The input packets are always assumed to be padded and
the av_fast_ family of function takes a pointer to a pointer.

Thanks to Nicolas Dufresne <nicolas.dufresne@collabora.com> for
a similar patch.

Introduced in 7b588bb691.

Bug-Id: 766
CC: libav-stable@libav.org
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-12-14 22:03:58 +01:00
Anton Khirnov
7b588bb691 svq1: do not modify the input packet 
The input data must remain constant, make a copy instead. This is in
theory a performance hit, but since I failed to find any samples
using this feature, this should not matter in practice.

Also, check the size of the header, avoiding invalid reads on truncated
data.

CC:libav-stable@libav.org
 2014-08-06 18:59:27 +00:00
Anton Khirnov
5b9c3b4505 Replace all instances of avcodec_alloc_frame() with av_frame_alloc(). 2013-11-16 12:44:20 +01:00
Anton Khirnov
7fbb75cc70 svq1dec: stop using deprecated avcodec_set_dimensions 2013-10-31 20:14:16 +01:00
Diego Biurrun
b2bed9325d cosmetics: Group .name and .long_name together in codec/format declarations 2013-10-03 23:32:01 +02:00
Diego Biurrun
c591d4575a avcodec: Replace local extern declarations for tables with header #includes 2013-08-15 14:38:03 +02:00
Ronald S. Bultje
6caa44aa7d svq1: Use hpeldsp instead of dsputil for half-pel functions 
This makes svq1 independent of dsputil.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-04-19 23:18:14 +03:00
Anton Khirnov
ecff5acb5a svq1dec: clip motion vectors to the frame size. 
Fixes invalid reads for corrupted files.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-04-17 10:55:51 +02:00
Anton Khirnov
b1bb8fb860 svq1dec: check that the reference frame has the same dimensions as the current one 
They can be different if the last keyframe failed to decode correctly.
Fixes possible invalid reads in such a case.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-04-17 10:55:30 +02:00
Janne Grunau
e3232f3431 svq1: use av_frame_free to free refcounted frame 
Fixes a memleak due to avcodec_free_frame not freeing the frame data.
 2013-03-10 22:28:18 +01:00
Anton Khirnov
759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Anton Khirnov
6ed9fc44ba svq1: replace struct svq1_frame_size with an array. 
It is used as an array in svq1enc, so this is more correct.
 2013-02-06 10:21:52 +01:00
Martin Storsjö
48238fd00b svq1: Fix building with -DDEBUG 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:17:52 +02:00
Anton Khirnov
c4182d72c9 svq1: return meaningful error codes. 2012-12-12 10:00:08 +01:00
Anton Khirnov
998fdcff41 lavc: replace some forgotten instances of PixelFormat with AVPixelFormat 2012-12-12 09:59:58 +01:00
Anton Khirnov
84a0806680 svq1: unmacroify macros used only once. 2012-12-12 09:59:41 +01:00
Anton Khirnov
95baf701db svq1: deMpegEncContextize 
This decoder is quite simple and none of the MpegEncContext complexity
is actually needed.
 2012-12-12 09:57:21 +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
Diego Biurrun
63a46c6101 svq1: Drop a bunch of useless parentheses 2012-10-10 15:10:53 +02:00
Diego Biurrun
ada12f8366 svq1: K&R formatting cosmetics 2012-10-10 14:14:22 +02:00
Anton Khirnov
716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Diego Biurrun
1218777ffd avcodec: Convert some commented-out printf/av_log instances to av_dlog 2012-10-01 10:24:28 +02:00
Diego Biurrun
f1e06d37c9 svq1/svq3: Move common code out of SVQ1 decoder-specific file 2012-08-24 02:23:15 +02:00
Anton Khirnov
36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Martin Storsjö
00c3b67b8a cosmetics: Align codec declarations 
Also break some long lines, remove codec function placeholder comments
and add spaces in sample/pixel format lists.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-04-06 22:37:38 +03:00
Diego Biurrun
324deaa268 Replace AVFrame pointer type punning by proper struct member assignments. 2012-03-01 23:11:13 +01:00
Martin Storsjö
efd29844eb mpegvideo: Add ff_ prefix to nonstatic functions 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-02-15 22:07:23 +02:00
Martin Storsjö
ddce8953a5 h263: Add ff_ prefix to nonstatic symbols 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-02-15 22:06:22 +02:00
Michael Niedermayer
6e24b9488e svq1dec: call avcodec_set_dimensions() after dimensions changed. 
Fixes NGS00148, CVE-2011-4579

Found-by: Phillip Langlois
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-12-23 15:42:24 +01:00
Mans Rullgard
51a16077da svq1dec: avoid undefined get_bits(0) call 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-12-02 21:52:09 +00:00
Mans Rullgard
e4faa31a0a svq1dec: use sign_extend() 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-11-26 18:50:02 +00:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Diego Biurrun
657ccb5ac7 Eliminate FF_COMMON_FRAME macro. 
FF_COMMON_FRAME holds the contents of the AVFrame structure and is also copied
to struct Picture.  Replace by an embedded AVFrame structure in struct Picture.
 2011-07-11 00:19:00 +02:00
Diego Biurrun
f8ea0eb6ff svq1dec: Fix debug statements that referenced non-existing context. 2011-06-07 13:20:57 +02:00
Diego Biurrun
f190f676bc Replace custom DEBUG preprocessor trickery by the standard one. 2011-06-03 00:44:06 +02:00
Diego Biurrun
2366462429 Replace #ifdef + av_log() combinations by av_dlog(). 2011-06-03 00:44:03 +02:00
Mans Rullgard
e65ab9d94f Remove unused variables 2011-06-02 20:06:00 +01:00
Stefano Sabatini
975a1447f7 Replace deprecated FF_*_TYPE symbols with AV_PICTURE_TYPE_*. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-05-02 12:18:44 +02:00
Diego Biurrun
2e15305b70 Remove some disabled printf debug cruft. 2011-04-29 20:00:53 +02:00
Anton Khirnov
e7021c0ed5 lavc: remove FF_API_HURRY_UP cruft 2011-04-26 08:16:05 +02:00
Anton Khirnov
8ed2ae09a2 lavc: mark hurry_up for removal on next major bump 
It has been deprecated for about five years, skip_idct/skip_frame should
be used instead.
 2011-04-02 16:17:24 +02:00