Mark Thompson [Mon, 29 Jan 2018 22:18:00 +0000 (22:18 +0000)]
lavc: Add support for increasing hardware frame pool sizes
AVCodecContext.extra_hw_frames is added to the size of hardware frame
pools created by libavcodec for APIs which require fixed-size pools.
This allows the user to keep references to a greater number of frames
after decode, which may be necessary for some use-cases.
It is also added to the initial_pool_size value returned by
avcodec_get_hw_frames_parameters() if a fixed-size pool is required.
Carl Eugen Hoyos [Sat, 10 Feb 2018 01:54:42 +0000 (02:54 +0100)]
lavf/rtpdec: Constify several pointers.
Fixes two warnings:
libavformat/rtpdec.c:155:20: warning: return discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
libavformat/rtpdec.c:168:20: warning: return discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
Nekopanda [Sun, 11 Feb 2018 08:15:54 +0000 (17:15 +0900)]
avcodec/mpeg2dec: Fix motion vector rounding for chroma components
In 16x8 motion compensation, for lower 16x8 region, the input to mpeg_motion() for motion_y was "motion_y + 16", which causes wrong rounding. For 4:2:0, chroma scaling for y is dividing by two and rounding toward zero. When motion_y < 0 and motion_y + 16 > 0, the rounding direction of "motion_y" and "motion_y + 16" is different and rounding "motion_y + 16" would be incorrect.
We should input "motion_y" as is to round correctly. I add "is_16x8" flag to do that.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: out of array access Fixes: 5919/clusterfuzz-testcase-minimized-5859311382167552 Fixes: special case for theora (untested due to lack of sample) Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: Timeout Fixes: 5487/clusterfuzz-testcase-4696837035393024 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
It introduced several issues in the command line tools, and it's
implementing a new API that may still see some changes.
Revert for the time being until the state of the API is defined.
Richard Shaffer [Fri, 2 Feb 2018 20:59:45 +0000 (12:59 -0800)]
avformat/hls: Support metadata updates from subdemuxers
If a subdemuxer has the updated metadata event flag set, the metadata is copied
to the corresponding stream. The flag is cleared on the subdemuxer and the
appropriate event flag is set on the stream.
James Almer [Tue, 6 Feb 2018 01:26:26 +0000 (22:26 -0300)]
avformat/mov: add VP8 codec support
Demuxing only. Muxing is disabled as altref frame handling is not
defined in the spec, and there's no way to know the presence of
such frames during stream initialization.
Based on a patch by Steven Liu.
Fixes ticket #7000
Reviewed-by: Carl Eugen Hoyos <ceffmpeg@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
wm4 [Tue, 30 Jan 2018 12:22:53 +0000 (13:22 +0100)]
id3v2: fix unsynchronization
The ID3v2 "unsynchronization scheme" requires replacing any 0xFF 0x00
sequences with 0xFF. This has to be done on every byte of the source
data, while the current code skipped a byte after a replacement. This
meant 0xFF 0x00 0xFF 00 was translated to 0xFF 0xFF 0x00 instead of 0xFF
0xFF. It feels a bit messy to do this correctly with the avio use. But
fortunately, this translation can be done in-place, so we can just do it
in memory.
wm4 [Thu, 25 Jan 2018 17:57:26 +0000 (18:57 +0100)]
rtsp: rename certain options after a deprecation period
The "timeout" option name inherently clashes with the meaning of the
HTTP libavformat protocol option with the same name. Rename it after a
deprecation period to make it compatible with the HTTP one.
Muhammad Faiz [Fri, 2 Feb 2018 18:18:27 +0000 (01:18 +0700)]
avcodec: do not use init_static_data on some codecs
They don't modify AVCodec, no needs to call it at register. They will be
wasteful if these codecs are unused. Instead, call static data initialization
at codecs' init.
Benchmark:
old: 51281340 decicycles in avcodec_register_all, 1 runs, 0 skips
new: 6738960 decicycles in avcodec_register_all, 1 runs, 0 skips
Reviewed-by: wm4 <nfxjfg@googlemail.com> Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself Fixes: 5396/clusterfuzz-testcase-minimized-6558555529281536 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Calvin Walton [Thu, 1 Feb 2018 18:28:25 +0000 (13:28 -0500)]
librsvgdec: Fix frame clearing code
The existing code attempts to clear the frame by painting in OVER
mode with transparent black - which is a no-op. As a result if you
have many input frames (e.g. you're using a sequence of svg files),
you'll start to see new frames drawn over old frames as memory gets
re-used.
Switch the code to paint using the CLEAR compositing operator,
which fills every channel with 0 values (setting a source colour
is not required).
Xiaohan Wang [Wed, 31 Jan 2018 22:20:02 +0000 (14:20 -0800)]
configure: Remove carriage return ('\r') in Windows CC_IDENT
Currently the Windows CC_IDENT is ended with '\r\n'. "head -n1" will not
remove the '\r' and this is causing building error in Chromium.
This CL adds "tr -d '\r'" to remove '\r' in the CC_IDENT string. Since in
most cases '\r' only appears at the end of a string/line, this should
work in most cases.
See example:
printf "hello\r\nworld\r\n" | head -n1 | hd 00000000 68 65 6c 6c 6f 0d 0a |hello..|
printf "hello\r\nworld\r\n" | head -n1 | tr -d '\r' | hd 00000000 68 65 6c 6c 6f 0a |hello.|
Also note a similar previous change at:
https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2013-October/069950.html
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
avcodec/aacsbr_fixed: Fix overflows in rounding in sbr_hf_assemble()
Fixes: runtime error: signed integer overflow: 2052929346 + 204817098 cannot be represented in type 'int' Fixes: 5275/clusterfuzz-testcase-minimized-5367635958038528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Martin Storsjö [Thu, 1 Feb 2018 12:56:49 +0000 (14:56 +0200)]
avpacket: Initialize the allocated padding area in side data
This makes sure that consumers of the side data actually can
rely on the padding as intended, without having the callers of
av_packet_new_side_data to explicitly zero initialize it.
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