Michael Niedermayer
d134b8d85f
avcodec/cdgraphics: Clear first frame only once
...
frame_number will not increase if nothing is output
Fixes: Timeout
Fixes: 9057/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CDGRAPHICS_fuzzer-4844661498707968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
7 years ago
Carl Eugen Hoyos
2f1d6d45af
lavc/cdg: Add transparency support.
9 years ago
Vittorio Giovara
def97856de
lavc: AV-prefix all codec capabilities
...
Express bitfields more simply.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
10 years ago
Anton Khirnov
c7d9b473e2
cdgraphics: do not return 0 from the decode function
...
0 means no data consumed, so it can trigger an infinite loop in the
caller.
CC:libav-stable@libav.org
11 years ago
Anton Khirnov
a1599f3f7e
cdgraphics: switch to bytestream2
...
Fixes possible invalid memory accesses on corrupted data.
CC:libav-stable@libav.org
Bug-ID: CVE-2013-3674
11 years ago
Diego Biurrun
b2bed9325d
cosmetics: Group .name and .long_name together in codec/format declarations
11 years ago
Michael Niedermayer
f9db2fc84d
cdgraphics: initialize buffer
...
Prevent use of uninitialized memory
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
ad002e1a13
avcodec/cdgraphics: check buffer size before use
...
Fixes out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Clément Bœsch
1ec94b0f06
lavc: factorize ff_{thread_,re,}get_buffer error messages.
...
Coccinelle profile used:
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_get_buffer(ctx, f, flags)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str;
@@
-if ((r = ff_reget_buffer(ctx, f)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_reget_buffer(ctx, f)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
+ return r;
...along with some manual patches for the remaining ones.
12 years ago
Anton Khirnov
759001c534
lavc decoders: work with refcounted frames.
12 years ago
Paul B Mahol
85921499c7
cdgraphics: set palette to zero too
...
Signed-off-by: Paul B Mahol <onemda@gmail.com>
12 years ago
Anton Khirnov
238614de67
cdgraphics: do not rely on get_buffer() initializing the frame.
...
Setting it to zero (instead of 128, as the default get_buffer() does)
also produces more correctly-looking output.
12 years ago
Anton Khirnov
df9b956751
lavc: fix decode_frame() third parameter semantics for video decoders
...
It's got_frame, not data size
12 years ago
Anton Khirnov
594d4d5df3
lavc: add a wrapper for AVCodecContext.get_buffer().
...
It will be useful in the upcoming transition to refcounted AVFrames.
12 years ago
Xi Wang
0d3123666a
cdgraphics: fix incorrect vertical offset mask in cdg_scroll()
...
The vertical offset mask 0x07 is suspicious.
v_off = FFMIN(data[2] & 0x07, CDG_BORDER_HEIGHT - 1);
Note that v_off is up to 11 (CDG_BORDER_HEIGHT - 1), the correct mask
should be 0x0F.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
12 years ago
Michael Niedermayer
b12d92efd6
avoid "0xFF << 24" as it is considered a integer overflow in C99
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
716d413c13
Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat
12 years ago
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
13 years ago
Michael Niedermayer
1e5c7376c4
cdgraphics: Fix out of array write
...
Fixes Ticket1359
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
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>
13 years ago
Carl Eugen Hoyos
973f3d3e0e
Set CD Graphics palette opaque.
13 years ago
Anton Khirnov
ec6402b7c5
lavc: use designated initialisers for all codecs.
...
It's more readable and less prone to breakage.
14 years ago
Mans Rullgard
e23a05ab06
Fix incorrect max_lowres values
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Diego Biurrun
bee6d2fd76
doxygen: replace @sa tag by the more readable but equivalent @see
14 years ago
ami_stuff
0fea3b7b80
Remove lowres support from cdgraphics decoder
...
The lowres support doesn't work correctly (crops the video), so let's remove it.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Diego Elio Pettenò
e7e2df27f8
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
...
None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit d36beb3f69
)
14 years ago
Diego Elio Pettenò
d36beb3f69
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
...
None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Carl Eugen Hoyos
0fd0ef7947
Add new decoder property max_lowres and do not init decoder if requested value is higher.
...
Originally committed as revision 24098 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Diego Biurrun
ba87f0801d
Remove explicit filename from Doxygen @file commands.
...
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Stefano Sabatini
72415b2adb
Define AVMediaType enum, and use it instead of enum CodecType, which
...
is deprecated and will be dropped at the next major bump.
Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Reimar Döffinger
b03a63d16a
Fix cdg reference and buffer_hints value:
...
reference must be 3 because both "fields" are used as reference,
and buffer_hints must include readable since we might memcpy from the old frame.
Originally committed as revision 20923 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Michael Tison
a3d995c1eb
CD+G demuxer and decoder
...
Patch by Michael Tison (gmail address: blackspike@....)
Originally committed as revision 20890 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago