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63 Commits

Author SHA1 Message Date
Diego Biurrun 060ce0c697 ivi_common: Make some tables only used within the file static 2013-08-15 14:38:03 +02:00
Luca Barbato 5b2a29552c indeo: Reject impossible FRAMETYPE_NULL 
A frame marked FRAMETYPE_NULL cannot be scalable and requires a
previous frame successfully decoded.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-15 11:46:50 +02:00
Luca Barbato f9e5261cab indeo: Do not reference mismatched tiles 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-15 11:46:30 +02:00
Luca Barbato 28dda8a691 indeo: Sanitize ff_ivi_init_planes fail paths 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-15 11:29:59 +02:00
Luca Barbato 25a6666f6c indeo: Bound-check before applying motion compensation 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-15 11:29:59 +02:00
Luca Barbato dc79685195 indeo: Bound-check before applying transform 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-13 19:11:18 +02:00
Luca Barbato 6a10142faa indeo: reject negative array indexes 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-04 16:06:11 +02:00
Luca Barbato 6dfacd7ab1 indeo: Cosmetic formatting 
Trim some overly long lines.
 2013-07-04 16:06:10 +02:00
Luca Barbato 62256010e9 indeo: Refactor ff_ivi_init_tiles and ivi_decode_blocks 
Spin large and mostly self contained blocks into stand alone
functions.
 2013-07-04 16:06:10 +02:00
Luca Barbato f6f36ca8ca indeo: Refactor ff_ivi_dec_huff_desc 
Spare an indentation level.
 2013-07-04 16:06:10 +02:00
Luca Barbato e6d8acf6a8 indeo: use a typedef for the mc function pointer 2013-07-04 16:06:10 +02:00
Luca Barbato b36e1893ef indeo: check for reference when inheriting mvs 
The same is done already for qdelta.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-01 04:20:58 +02:00
Luca Barbato dd3754a488 indeo: use proper error code 2013-07-01 04:17:46 +02:00
Luca Barbato 7388c0c586 indeo: Properly forward the error codes 
If the tile data size does not match the buffer size it did not
return an AVERROR_INVALIDDATA causing futher corruption later.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-01 04:17:46 +02:00
Kostya Shishkov 33f64fd5d5 indeo4: expand allowed quantiser range 
Indeo 4 has quantiser range 0-31 instead of 0-23 for Indeo 5, and clipping
quantiser leads to incorrect quantisation and DC prediction on low-quality
videos.

This fixes bug 259.
 2013-06-01 06:36:47 +02:00
Diego Biurrun 6fee1b90ce avcodec: Add av_cold attributes to init functions missing them 2013-05-04 21:09:45 +02:00
Anton Khirnov 3ba40ebb6c ivi_common: do not call MC for intra frames when dc_transform is unset 
CC:libav-stable@libav.org
 2013-03-08 08:11:46 +01:00
Anton Khirnov 759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Anton Khirnov deabb52ab4 ivi_common: check that scan pattern is set before using it. 
Fixes CVE-2012-2791.

CC: libav-stable@libav.org
 2012-12-14 07:10:53 +01:00
Anton Khirnov 07acdd651d ivi_common: use proper logging context in ivi_decode_blocks(). 2012-12-14 07:10:48 +01:00
Anton Khirnov 8ab42021f2 ivi_common: make some functions and tables static. 2012-12-14 07:08:38 +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
Anton Khirnov 594d4d5df3 lavc: add a wrapper for AVCodecContext.get_buffer(). 
It will be useful in the upcoming transition to refcounted AVFrames.
 2012-12-04 21:41:59 +01:00
Diego Biurrun 87cdd7c694 ivi_common: Drop unused function parameter from decode_band() 2012-10-26 18:28:38 +02:00
Diego Biurrun d5c62122a7 Move av_reverse table to libavcodec 
It is only used in that library.
 2012-10-12 20:39:18 +02:00
Janne Grunau 6d556e8327 indeo4/5: remove constant parameter num_bands from wavelet recomposition 
Fixes bogus uninitialized value compiler and coverity warnings.
 2012-10-10 21:24:32 +02:00
Anton Khirnov ae3da0ae55 indeo4/5: check empty tile size in decode_mb_info(). 
This prevents writing into a too small array if some parameters changed
without the tile being reallocated.

Based on a patch by Michael Niedermayer <michaelni@gmx.at>

Fixes CVE-2012-2800

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2012-09-29 19:13:45 +02:00
Anton Khirnov 5d2170c53b ivi_common: make ff_ivi_process_empty_tile() static. 
It's not used outside of ivi_common.c
 2012-09-29 19:12:57 +02:00
Michael Niedermayer b146d74730 indeo4: update AVCodecContext width/height on size change 
Fixes CVE-2012-2787

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-09-29 09:27:32 +02:00
Michael Niedermayer 891918431d indeo5dec: Make sure we have had a valid gop header. 
This prevents decoding happening on a half initialized context.

Fixes CVE-2012-2779

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-09-29 09:26:30 +02:00
Anton Khirnov 36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Diego Biurrun 4f04f5cc8b indeo: Make ivi_calc_band_checksum() static, it is only used in one file. 2012-05-20 15:59:30 +02:00
Diego Biurrun 9ccbdc0aca indeo: Drop unused debug function ivi_check_band(). 2012-05-20 15:56:25 +02:00
Kostya Shishkov cf61aaaca1 indeo: check for invalid motion vectors 2012-05-20 11:19:48 +02:00
Kostya Shishkov 9603738221 indeo: check that band output buffer exists 2012-05-20 11:19:48 +02:00
Kostya Shishkov 23ba1503f2 indeo: clear allocated band buffers 2012-05-20 11:19:48 +02:00
Kostya Shishkov a6e4ac40a6 indeo: track tile macroblock size 2012-05-20 11:19:48 +02:00
Kostya Shishkov fe7a37c36f indeo: check custom Huffman tables for errors 2012-05-20 11:19:47 +02:00
Kostya Shishkov aa372cf470 factor out common decoding code for Indeo 4 and Indeo 5 2012-05-20 11:19:30 +02:00
Diego Biurrun b1563d0cf9 ivi_common: Initialize a variable at declaration in ff_ivi_decode_blocks(). 
This simplifies the code a bit and avoids an uninitialized variable warning.
 2012-04-20 21:08:34 +02:00
Diego Biurrun 3dde147ff9 cosmetics: Consistently place static, inline and av_cold attributes/keywords. 2012-04-04 14:54:13 +02:00
Martin Storsjö e96b4a53df vlc/rl: Add ff_ prefix to the nonstatic symbols 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-02-15 22:06:26 +02:00
Michael Niedermayer b18a0cc781 indeo5: Fix null pointer dereference. 
Bug found by: Oana Stratulat

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2012-01-07 00:18:42 +01:00
Diego Biurrun aaf47bcde7 Drop ALT_ prefix from BITSTREAM_READER_LE name. 
The prefix is a historic remnant that probably meant "alternative".
Now that the A32 bitstream reader has been dropped it makes no sense anymore.
 2011-12-22 16:51:23 +01:00
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 2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Daniel Kang eb40d7ffa7 Check symbol validity to avoid a crash, fixes issue 2523. 
Patch by Daniel Kang, daniel.d.kang at gmail

Originally committed as revision 26360 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2011-01-15 10:18:38 +00:00
Måns Rullgård 49bd8e4b84 Fix grammar errors in documentation 
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-30 15:38:06 +00:00
Maxim Poliakovski 79d46cbea6 Quant changes only once per MB so move the corresponding scale factor assignment 
out of the block decoding loop. Indeo4 doesn't use any scale table but the quant
level itself as scale. Therefore access scale table only if its pointer != NULL.

Originally committed as revision 23569 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-10 17:31:12 +00:00