Pan Bian [Mon, 27 Nov 2017 06:56:32 +0000 (14:56 +0800)]
avcodec/samidec: check av_strdup() return value
In function sami_paragraph_to_ass(), the return value of av_strdup() is
not checked. To avoid potential NULL dereference, the return value
should be checked against NULL.
wm4 [Fri, 17 Nov 2017 13:15:22 +0000 (14:15 +0100)]
vp9: use superframe split BSF
webm usually has invisible superframes merged with normal frames.
(vpxenc muxes them in this form, which is evidence enough that this is
the standard webm packet format. It's rather unclear whether ffmpeg is
even allowed to remux them with split packets.)
The vp9 decoder needs them to be in separate packets for multithreading
to work. Add the BSF to the decoder, so the conversion happens
automatically.
This contains the important part of fa1749dd34c55fb9, which
was apparently skipped in commit d417e95af76. This restores Libav API
compatibility.
Pan Bian [Mon, 27 Nov 2017 01:52:50 +0000 (09:52 +0800)]
avcodec/nvenc: set correct error code
In function process_output_surface(), the return value is 0 on the path
that av_mallocz() returns a NULL pointer. 0 indicates success, which
deviates from the fact. Return "AVERROR(ENOMEM)" instead of "0".
Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
James Zern [Tue, 21 Nov 2017 01:32:23 +0000 (17:32 -0800)]
libvpxenc,vp9: add corpus-complexity option
Corpus VBR mode is a variant of standard VBR where the complexity
distribution midpoint is passed in rather than calculated for a specific
clip or chunk.
The valid range is [0, 10000]. 0 (default) uses standard VBR.
Pan Bian [Mon, 27 Nov 2017 03:12:56 +0000 (11:12 +0800)]
avformat/mov: set correct error code in mov_read_custom
In function mov_read_custom(), it returns 0 on the path that av_malloc()
returns a NULL pointer. 0 indicates success. An error code should be
assigned to ret.
Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Pan Bian [Mon, 27 Nov 2017 12:41:10 +0000 (20:41 +0800)]
avcodec: set correct return value in ff_mpeg_ref_picture
In function ff_mpeg_ref_picture(), it returns 0 on the error path that
the return value of av_buffer_ref() is NULL. 0 indicates success, which
seems to deviate from the fact. Set ret to AVERROR(ENOMEM) to propagate
the error status to the callers.
Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Karthick J [Tue, 28 Nov 2017 12:03:15 +0000 (20:03 +0800)]
avformat/hlsenc: Fixed initial setting for end_pts
This patch fixes Bug #6868
Sometimes end_pts is getting initialized to audio stream's
first pts, while the duration is calculated based on video stream's pts.
In this patch the end_pts is initialized with the correct stream's first pts.
Reviewed-by: Steven Liu <lq@onvideo.cn> Tested-by: beloko
Pan Bian [Mon, 27 Nov 2017 01:12:54 +0000 (09:12 +0800)]
ffmpeg: Check read_ffserver_streams() return value
The function avformat_alloc_context() will return a NULL pointer on
failure. However, in function read_ffserver_streams(), its return value
is not validated and the subsequent dereference may result in a bad
memory access bug. Check its return value against NULL and avoid
potential NULL dereference.
Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Pan Bian [Mon, 27 Nov 2017 01:30:53 +0000 (09:30 +0800)]
libavformat/rtpenc_mpegts: check avformat_new_stream() return value
The function avformat_new_stream() returns a NULL pointer on failure.
However, in function rtp_mpegts_write_header(), its return value is not
validated before it is dereferenced. Check the return value against NULL
to avoid potential NULL dereference.
Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Tobias Rapp [Mon, 27 Nov 2017 08:13:05 +0000 (09:13 +0100)]
avformat/avienc: fix fields-per-frame value for interlaced video streams
Writes one set of field framing information for progressive streams and
two sets for interlaced streams. Fixes ticket #6383.
Unfortunately the OpenDML v1.02 document is not very specific on what
value to use for start_line when frame data is not coming from a
capturing device, so this is just using 0/1 depending on the field order
as a best-effort guess.
Philip Langdale [Mon, 27 Nov 2017 06:18:22 +0000 (22:18 -0800)]
avcodec/nvdec: More effort to make vp8 compile with gcc < 4.6
I'm told my prefix work-around wasn't enough to make it compile,
although I'm not sure why; I did some basic testing and that
approach appeared to work, but I'm not in a position to do a
full compile on CentOS 6 so I can't be sure of anything.
I have had it confirmed that the additional change to not use
named initialisers is enough to make it compile, so let's
throw that into the mix too.
Unfortunately, RHEL 6 shipped with one of these ancient
versions and so we're stuck with it until approximately the
heat death of the universe.
Putting explicit braces into the initialisation is possibly a
work-around but the behaviour there was never fully understood
before direct initialisation was made to work.
avcodec/mlpdsp: Fix signed integer overflow, 2nd try
The outputted bits should match what is used in the lossless check
Fixes: runtime error: signed integer overflow: -538697856 * 256 cannot be represented in type 'int' Fixes: 4326/clusterfuzz-testcase-minimized-5689449645080576 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
avcodec/h264idct_template: Fix integer overflow in ff_h264_idct8_add
Fixes: signed integer overflow: 452986184 - -2113885312 cannot be represented in type 'int' Fixes: 4196/clusterfuzz-testcase-minimized-5580648594014208 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Mark Thompson [Sat, 18 Nov 2017 17:55:18 +0000 (17:55 +0000)]
vp8: Add hwaccel hooks
Also adds some extra fields to the main context structure that may
be needed by a hwaccel decoder.
The current behaviour of the WebP decoder is maintained by adding an
additional field to the VP8 decoder private context to indicate that
it is actually being used as WebP (no hwaccel is supported for that
case).
Mark Thompson [Wed, 25 Oct 2017 23:18:45 +0000 (00:18 +0100)]
lavc: Remove register mechanism for hwaccels
There is no longer any need for a list of them at runtime, because
decoders now carry the pointers to their associated hwaccels internally.
The file containing external declarations is now used to make the list
of hwaccels for configure.
Mark Thompson [Wed, 25 Oct 2017 23:18:43 +0000 (00:18 +0100)]
lavc: Use hardware config information in ff_get_format()
This removes the dependency that hardware pixel formats previously had on
AVHWAccel instances, meaning only those which actually do something need
exist after this patch.
Also updates avcodec_default_get_format() to be able to choose hardware
formats if either a matching device has been supplied or no additional
external configuration is required, and avcodec_get_hw_frames_parameters()
to use the hardware config rather than searching the old hwaccel list.
The FF_CODEC_CAP_HWACCEL_REQUIRE_CLASS mechanism is deleted because it
no longer does anything (the codec already contains the pointers to the
matching hwaccels).
Mark Thompson [Wed, 25 Oct 2017 23:18:40 +0000 (00:18 +0100)]
lavc: Add hardware config metadata for decoders supporting hardware output
This includes a pointer to the associated hwaccel for decoders using
hwaccels - these will be used later to implement the hwaccel setup
without needing a global list.
Also added is a new file listing all hwaccels as external declarations -
this will be used later to generate the hwaccel list at configure time.
avcodec/dirac_dwt: Fix integer overflow in COMPOSE_FIDELITYi*
Fixes: runtime error: signed integer overflow: -2143827186 - 7404944 cannot be represented in type 'int' Fixes: 4354/clusterfuzz-testcase-minimized-4671122764201984 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Mark Thompson [Fri, 24 Nov 2017 00:21:26 +0000 (00:21 +0000)]
hwcontext_vaapi: Do not assume that sw_format is transferable
Drivers can support a format for surfaces without also supporting it for
images, so we can't assume that sw_format is usable for transfer. This
would previously hit an assert in cases where it isn't.
Jan Ekström [Fri, 24 Nov 2017 00:44:44 +0000 (02:44 +0200)]
hwcontext_d3d11va: properly reset values after release/close
Makes the uninit function re-entrable, which can be a common case
when an API user first tries to initialize its context, fails, and
then finally unrefs the AVHWDevice.
Mikulas Patocka [Thu, 23 Nov 2017 19:12:55 +0000 (20:12 +0100)]
avcodec/fft: fix INTERL macro on 3dnow
The commit b7c16a3f2c4921f613319938b8ee0e3d6fa83e8d ("x86: fft: Port to
cpuflags") breaks the opus decoder in ffmpeg when compiling for 3dnow. The
output is audible, but there's a lot of noise.
The reason for the breakage is that the commit unintentionally changed the
INTERL macro so that it is empty when compiling for 3dnow. This patch
fixes it.
Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Signed-off-by: James Almer <jamrial@gmail.com>
Mark Thompson [Fri, 24 Nov 2017 12:36:09 +0000 (12:36 +0000)]
lavu/pixfmt: Remove gap in the middle of enum AVPixelFormat
This was added for compatibility with libav, by leaving a space for
formats added in libav to be merged. Since that feature has been
removed, we don't need a gap here.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Mikulas Patocka [Thu, 23 Nov 2017 19:22:56 +0000 (20:22 +0100)]
ffmpeg libopusdec: fix missing include file in libopusdec.c
This patch fixes the following error when compiling mplayer with libopus.
libavcodec/libopusdec.c: In function 'libopus_decode_init':
libavcodec/libopusdec.c:130:27: error: implicit declaration of function 'ff_exp10'; did you mean 'ff_exp2fi'? [-Werror=implicit-function-declaration]
double gain_lin = ff_exp10(gain_db / (20.0 * 256));
^~~~~~~~
ff_exp2fi
Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: signed integer overflow: 2147483598 + 64 cannot be represented in type 'int' Fixes: 4337/clusterfuzz-testcase-minimized-6192658616680448 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
projects / ffmpeg / log