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1119 Commits

Author SHA1 Message Date
Anton Khirnov
f9f883af4f h264: simplify code in flush_dpb() 
There is no point in clearing reference explicitly, since that will be
done as a part of ff_h264_unref_picture() right below.
 2015-01-27 08:34:24 +01:00
Anton Khirnov
60d4c6ff76 h264: restore a block mistakenly removed in e10fd08a 
CC: libav-stable@libav.org
Bug-ID: 781
 2014-12-27 10:44:48 +01:00
Michael Niedermayer
d69d787dad h264: proper cleanup in ff_h264_alloc_tables() if DPB alloc fails 
CC: libav-devel@libav.org
 2014-12-03 02:51:27 +00:00
Dale Curtis
56de2897a6 h264: Fix memory leak on ff_h264_decode_init() failure 
CC: libav-devel@libav.org
 2014-12-03 02:51:18 +00:00
Vittorio Giovara
b1b1a7370e display: fix order of operands 
CC: libav-stable@libav.org
Bug-Id: CID 1238828 / CID 1238832
 2014-11-13 01:41:25 +01:00
Anton Khirnov
7ea1b3472a lavc: deprecate the use of AVCodecContext.time_base for decoding 
When decoding, this field holds the inverse of the framerate that can be
written in the headers for some codecs. Using a field called 'time_base'
for this is very misleading, as there are no timestamps associated with
it. Furthermore, this field is used for a very different purpose during
encoding.

Add a new field, called 'framerate', to replace the use of time_base for
decoding.
 2014-10-15 06:37:43 +00:00
Michael Niedermayer
2cd7c99498 h264: reset ret to avoid propagating minor failures 
Unbreak 772d150a6e82542c06b0c251e73dd299d98d1027.

CC: libav-stable@libav.org
Bug-Id: 750 / 905753
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-09-29 12:33:55 +01:00
Gabriel Dume
f929ab0569 cosmetics: Write NULL pointer equality checks more compactly 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-08-15 03:18:18 -07:00
Felix Abecassis
a7e541c992 h264: fix interpretation of interleved stereo modes 
Column and row frame packing arrangements were inverted.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-08-07 11:31:47 +01:00
Diego Biurrun
2d60444331 dsputil: Split motion estimation compare bits off into their own context 2014-07-17 09:07:10 -07:00
Luca Barbato
2db953f846 h264: K&R formatting cosmetics 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-07-17 03:05:24 -07:00
Vittorio Giovara
18e3d61e9e h264: parse display orientation SEI message 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-07-09 10:17:42 -04:00
Vittorio Giovara
772d150a6e h264: error out from decode_nal_units() when AV_EF_EXPLODE is set 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-06-23 18:58:57 -04:00
Luca Barbato
e10fd08aa7 h264: Refactor decode_nal_units 2014-04-06 23:33:17 +02:00
Luca Barbato
f51d0f39c0 h264: Split h264 slice decoding from nal decoding 2014-03-23 22:41:12 +01:00
Vittorio Giovara
e9a77f4bc0 h264: move macroblock decoding into its own file 2014-03-23 22:41:12 +01:00
Vittorio Giovara
d24e9a99a4 h264 does not depend on mpegvideo any more 2014-03-16 23:05:47 +01:00
Vittorio Giovara
e0c16e4e32 mpegvideo: move mpegvideo formats-related defines to mpegutils.h 2014-03-16 23:04:41 +01:00
Vittorio Giovara
136034d86b h264: Remove MotionEstContext and move the relevant fields to H264Context 
Unused buffers scratchpad and temp have been dropped too.
 2014-03-16 23:01:01 +01:00
Vittorio Giovara
e3c2d0f3d4 h264: Replace mpegvideo-specific MAX_THREADS by private define 2014-03-16 23:01:01 +01:00
Vittorio Giovara
5d1c2e53ab h264: Replace mpegvideo-specific MAX_PICTURE_COUNT by private define 2014-03-16 23:01:01 +01:00
Vittorio Giovara
9b749c8274 h264: move relevant fields from Picture to H264Picture 2014-03-16 23:01:00 +01:00
Vittorio Giovara
d66e305bd1 er: move relevant fields from Picture to ERPicture 
This is done to disentangle ER from mpegvideo. In order to use a
classic Picture, callers can use ff_mpeg_set_erpic() or use a custom function
to set the fields. Please note that buffers need to be allocated before
calling ff_er_frame_end().
 2014-03-16 23:01:00 +01:00
Vittorio Giovara
1c79b1625d h264: directly use frames in ff_h264_draw_horiz_band() 2014-03-16 23:01:00 +01:00
Diego Biurrun
f2408ec9d7 Give IDCT matrix transpose macro a more descriptive name 
This also avoids a macro name clash and related warning on ARM.
 2014-02-27 13:38:00 -08:00
Luca Barbato
d922c5a5fb h264: Fix a typo from the previous commit 
f777504f640260337974848c7d5d7a3f064bbb45 changed a - in +

CC: libav-stable@libav.org
 2014-02-22 12:26:32 +01:00
Vittorio Giovara
f777504f64 h264: Lower bound check for slice offsets 
And use the value from the specification.

Sample-Id: 00000451-google
Found-by: Mateusz j00ru Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-02-20 18:58:38 +01:00
Luca Barbato
fea6db064b h264: informative error reporting in decode_slice_header() 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-02-18 23:47:55 +01:00
Luca Barbato
96f9fbe109 h264: fix slice_type value reported in decode_slice_header() 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-02-18 23:47:32 +01:00
Vittorio Giovara
15210354cf h264: drop outdated comments 2014-02-14 05:08:37 +01:00
Vittorio Giovara
3a05767028 h264: store current_sps_id inside the current sps 
In preparation for MVC support.
 2014-02-14 05:05:46 +01:00
Vittorio Giovara
73e8fab31d h264: print values in case of error 
Also make error style consistent and drop redundant information.
 2014-02-14 05:05:35 +01:00
Janne Grunau
f795a8a8bf h264: make context_count unsigned 
Removes the bogus but scary looking warning 'libavcodec/h264.c:4529:49:
warning: array subscript is below array bounds [-Warray-bounds]'.
 2014-02-12 15:48:03 +01:00
Anton Khirnov
1f097d168d h264: reset data partitioning at the beginning of each decode call 
Prevents using GetBitContexts with data from previous calls.

Fixes access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-02-04 11:26:17 +01:00
Janne Grunau
fb0c9d41d6 avutil: remove timer.h include from internal.h 
Added libavutil/timer.h include to all files with {START,STOP}_TIMER.
 2014-01-25 21:50:20 +01:00
Janne Grunau
ea49f60523 h264: skip chroma edges at the picture boundary while deblocking 4:4:4 
This handles macroblock edges for the chroma components in the same way
as for the luma compoment for 4:4:4 streams. The Spec explicitly states
that the deblocking filter is not applied to edges at the boundary of
the picture.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-01-22 13:44:28 +01:00
Anton Khirnov
8b2e5e42bb h264: check that an IDR NAL only contains I slices 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:53:31 +01:00
Anton Khirnov
0652e024c6 h264: reset ref count if decoding the slice header fails 
Otherwise the ER code might try to use some already freed references.

Fixes possible access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:51:04 +01:00
Anton Khirnov
00dbff4c3e h264: do not call field_end if we do not have a current picture 
Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:42:21 +01:00
Anton Khirnov
7f0e81db3c h264: limit allowed pred modes in ff_h264_check_intra_pred_mode() to 3 
Higher modes are not allowed for 16x16/chroma, which is what this
function is used for. Otherwise this function would return 0 (vertical
prediction) for invalid higher modes, which could result in invalid
reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:41:59 +01:00
Anton Khirnov
d1b3fabe69 h264: reset first_field if frame_start() fails for missing refs 
In this case we may not have a current frame, while first_field being
set implies we do.

Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:41:24 +01:00
Anton Khirnov
9eef9eb301 h264: check that execute_decode_slices() is not called too many times 
Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-06 08:25:25 +01:00
Anton Khirnov
bfd26b7ce6 h264: reject mismatching luma/chroma bit depths during sps parsing 
There is no point in delaying the check and it avoids bugs with a
half-initialized context.

Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-06 08:23:45 +01:00
Anton Khirnov
9a026c7298 h264: rebuild the default ref list if the reference count changes 
Fixes possible access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-06 08:23:17 +01:00
Anton Khirnov
58312b2472 h264: reset data_partitioning if decoding the slice header for NAL_DPA fails 
If it was set before then we can end up trying to decode a slice without
a valid slice header, which can lead to invalid memory access.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-03 16:42:02 +01:00
Luca Barbato
4d2bb28931 h264: namespace the decode function 
Make much easier debugging.
 2013-12-27 07:48:13 +01:00
Anton Khirnov
598ce4ab4f h264: call av_frame_unref() instead of avcodec_get_frame_defaults(). 
This is a temporary workaround to allow deprecating
avcodec_get_frame_defaults(). The proper solution will be using a
properly allocated AVFrame in Picture.
 2013-12-11 20:39:55 +01:00
Vittorio Giovara
5b10ef729f h264: parse frame packing arrangement SEI messages and save relevant stereo3d information 2013-12-09 16:02:43 +01:00
Anton Khirnov
f0259a587e h264: check buffer size before accessing it 
Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:54:20 +01:00
Anton Khirnov
a553c6a347 lavc: use buf[0] instead of data[0] in checks whether a frame is allocated 
data[0] may be NULL for valid frames with hwaccel pixel formats.
 2013-11-18 18:09:48 +01:00