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Author SHA1 Message Date
Anton Khirnov
10bca66101 cmdutils: add a macro to simplify grow_array() calls. 2012-12-18 20:11:06 +01:00
Janne Grunau
9e696d2e5f h264: support frame parameter changes during frame-mt 
Fixes CVE-2012-2782.
 2012-12-18 19:55:10 +01:00
Janne Grunau
f1d8763a02 mpegvideo: allocate scratch buffers after linesize is known 
Since we can't know which stride a custom get_buffer() implementation is
going to use we have to allocate this scratch buffers after the linesize
is known. It was pretty safe for 8 bit per pixel pixel formats since we
always allocated memory for up to 16 bits per pixel. It broke hoever
with cmdutis.c's alloc_buffer() and high pixel bit depth since it
allocated larger edges than mpegvideo expected.

Fixes fuzzed sample nasa-8s2.ts_s244342.
 2012-12-18 19:48:30 +01:00
Michael Niedermayer
ed2d7d5868 ff_h264_direct_ref_list_init: fix B slice check. 
Fixes null pointer dereference.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2012-12-18 19:44:22 +01:00
Janne Grunau
73ad2c2fa7 h264: increase dist_scale_factor for up to 32 references 
Compute dist_scale_factor_field only for MBAFF since that is the only
case in which it is used.
 2012-12-18 19:36:58 +01:00
Diego Biurrun
523c7bd23c misc typo, style and wording fixes 2012-12-18 13:36:51 +01:00
Diego Biurrun
ea061af15a configure: formatting cosmetics 2012-12-18 13:36:50 +01:00
Michael Niedermayer
c9aab8a123 h264: use mbaff ref indices in fill_colmap() only for mbaff references 
Prevents writing beyond array bounds.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2012-12-18 11:02:23 +01:00
Janne Grunau
61c6eef545 h264: prevent decoding of slice NALs in extradata 
It is not posible to call get_buffer during frame-mt codec
initialization. Libavformat might pass huge amounts of data as
extradata after parsing broken files. The 'extradata' for the fuzzed
sample sample_varPAR_s5374_r001-02.avi is 2.8M large and contains
multiple slices.
 2012-12-18 11:01:14 +01:00
Derek Buitenhuis
26e4f0c70f doxy: Clarify what avpriv_set_pts_info does 
The "pts for a given stream" was nonsensical.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2012-12-17 11:20:00 -05:00
Diego Biurrun
c35f0e8495 au: Reorder code so that both muxer and demuxer are under #ifdefs 
This reduces code size when either piece has been disabled.
 2012-12-17 17:02:22 +01:00
Diego Biurrun
4d6c96fd69 fate: Move RALF test into lossless audio group 2012-12-17 17:02:22 +01:00
Diego Biurrun
81c7c817a4 cosmetics: Use consistent names for multiple inclusion guards. 2012-12-17 17:02:22 +01:00
Hendrik Leppkes
0cf3505930 avresample: use valid log context in mixing functions 
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
 2012-12-16 19:59:58 -05:00
Justin Ruggles
f1c2915ce1 lavr: remove automatic context close/open for resampling compensation 
It adds unnecessary complication for insignificant usability improvement.
The user really should know if they'll need resampling compensation before
opening the context.

Note that only the documentation has changed. The current functionality will
still work until the next major bump.
 2012-12-16 19:26:17 -05:00
Justin Ruggles
f322b20735 lavr: only save/restore the mixing matrix if mixing is being done 2012-12-16 19:26:17 -05:00
Martin Storsjö
e798085f96 rtpdec_vp8: Cosmetics: Fix bad alignment/indentation 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-16 21:33:20 +02:00
Martin Storsjö
3b2e8d1d21 rtpenc: Allow including a SDES/CNAME block in RTCP SR packets 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-16 21:32:58 +02:00
Martin Storsjö
65e053271a rtpenc_vp8: Include the picture number in VP8 packets 
This makes it easier for receivers to decide what to do if data
is lost.

Refactor calculating the max payload size, to avoid hardcoding the
header size in too many places, reducing the number of lines that
have to be touched if the header is adjusted further.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-16 21:32:13 +02:00
Janne Grunau
a421bbfe83 h264: fix memleak on error during SPS parsing 
Introduced in d7d6efe42b.
 2012-12-15 19:16:39 +01:00
Janne Grunau
27c8337e59 h264-mt: handle NAL_DPAs before calling ff_thread_finish_setup 
Since a NAL_DPA can start a new frame it has to be handled before
ff_thread_finish_setup is called.
 2012-12-15 19:06:37 +01:00
Justin Ruggles
230acdde26 lavr: move AudioMix struct definition to audio_mix.c 2012-12-15 12:26:15 -05:00
Luca Barbato
f33b5ba63e vp56: release frames on error 
Fixes CVE-2012-2783

CC: libav-stable@libav.org
 2012-12-14 13:21:59 +01:00
Luca Barbato
bb675d3ac6 vp56: make parse_header return standard error codes 
Returning 0 for failure is misleading.

CC: libav-stable@libav.org
 2012-12-14 13:21:59 +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
Justin Ruggles
4e5a8878d5 asyncts: ignore min_delta only if first_pts is set 2012-12-13 18:51:56 -05:00
Justin Ruggles
c0dc57f126 asyncts: merge two conditions 2012-12-13 18:51:56 -05:00
Janne Grunau
0995ad8db4 x86inc: fully concatenate tokens to fix macro expansion for nasm 
Fixes build errors with nasm introduced in 6f40e9f070 for stack
memory alignment. Noticed by BugMaster.
 2012-12-13 23:57:09 +01:00
Janne Grunau
0eae920c3c h264: initialize frame-mt context copies properly 2012-12-13 21:02:42 +01:00
Janne Grunau
6a27ae28f9 mpegvideo: treat delayed pictures as used 
This requires to move the avcodec_default_free_buffers() call to
ff_MPV_common_end() since otherwise delayed pictures would get freed
during a size change.
 2012-12-13 21:02:42 +01:00
Janne Grunau
bd255f9feb lavc: set frame parameters after decoding only if necessary 
Direct rendering capable decoders call get_buffer() which will set the
frame parameters.

Prevents frames with wrong parameters when a decoder outputs delayed
frames after a resolution or pixel format change.
 2012-12-13 21:02:42 +01:00
Janne Grunau
072be3e896 h264: set parameters from SPS whenever it changes 
Fixes a crash in the fuzzed sample sample_varPAR.avi_s26638 with
alternating bit depths.
 2012-12-13 21:02:42 +01:00
Justin Ruggles
0ee440fe38 asyncts: cosmetics: reindent 2012-12-13 13:02:21 -05:00
Justin Ruggles
b35e5d985d doc: improve documentation for the asyncts filter first_pts option 
Note the time base for the option. Add an additional example description.
 2012-12-13 13:02:21 -05:00
Justin Ruggles
c143de40c3 asyncts: fix the asyncts behavior when using the first_pts option 
Currently it will do padding, but it does not properly handle
start-of-stream trimming as documented.
 2012-12-13 13:02:21 -05:00
Justin Ruggles
8083332c2d asyncts: use clipped delta value when setting resample compensation 
The max_comp option is supposed to limit maximum compensation, but
currently the clipped value is not actually used.
 2012-12-13 13:02:21 -05:00
Justin Ruggles
f266486b2e asyncts: fix flushing of final samples at EOF 2012-12-13 13:02:21 -05:00
Luca Barbato
be75fed975 vp6: properly fail on unsupported feature 
Interlacing is not supported at all and mismanaged down the normal
codepaths causing possible buffer management issues.

CC: libav-stable@libav.org
 2012-12-13 17:05:45 +01:00
Alex Converse
6d5b009267 aacdec: Fix an off-by-one overwrite when switching to LTP profile from MAIN. 
Found-by: pawlkt
CC: libav-stable@libav.org
 2012-12-12 13:22:10 -08:00
Ronald S. Bultje
140367aff9 x86inc: fix stack alignment on win64 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 21:30:49 +02:00
Martin Storsjö
29d2595ad7 rtpproto: Remove unused defines 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 16:01:24 +02:00
Martin Storsjö
f3f60dcbdd rtpdec_mpeg4: Cosmetic cleanup 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:50 +02:00
Martin Storsjö
584a017925 rtpdec: Cosmetic cleanup of the header 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:44 +02:00
Martin Storsjö
abf74a1169 rtpdec: Get rid of a useless _s suffix on a struct name 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:38 +02:00
Martin Storsjö
7941159df6 rtpdec/enc: Remove outdated/useless/misleading comments 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:33 +02:00
Martin Storsjö
d6ec745246 rtpdec: Improve some comments 
The previous comment about the buffer was wildly inaccurate and
misleading.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:28 +02:00
Martin Storsjö
e66d448c75 rtpdec: Remove unused context variables 
These stem from back when both the rtp muxer and rtp depacketizing
shared the same struct.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:22 +02:00
Martin Storsjö
81ef519252 rtpdec: Limit writing to the buffer size 
This fixes potential buffer overwrites.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-12-12 12:18:16 +02:00