On systems which deliver SIGPIPE (Unices), a broken pipe will currently
result in the immediate termination of the ffmpeg process (the default
disposition as required by POSIX). This is undesirable, because while
the broken pipe is likely fatal to useful cleanup of whatever component
is writing to it, there might be other components which can do useful
cleanup - for example, a muxer on another stream may still need to write
indexes to complete a file. Therefore, set the signal disposition for
SIGPIPE to ignore the signal - the call which caused the signal will
fail with EPIPE and the error will be propagated upwards like any other
I/O failure on a single stream.
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>
This was added in early 2013 and abandoned several months later; as far as
I can tell, there are no external users. Future OpenCL use will be via
hwcontext, which requires neither special OpenCL-only API nor global state
in libavutil.
All internal users are also deleted - this is just the unsharp filter
(replaced by unsharp_opencl, which is more flexible) and the deshake filter
(no replacement).
add return value check to supress the build warning message like
"warning: ignoring return value" when use attribute -Wunused-result.
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Reviewed-by: 刘歧 <lq@chinaffmpeg.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Adds ui64 (uint64_t) as a possible type for SpecifierOpt. This enables
use of uint64_t options with SpecifierOpt such as channel_layout
when expressed as a 64 bit channel mask.
Signed-off-by: pkviet <pkv.stream@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
For some strange reason "-t" option was only implemented
for input files while both "-t" and "-to" were available
for use for output files. This made extracting a range from
input file inconvenient.
This patch enables -to option for input so one can do
ffmpeg -ss 1:23:20 -to 1:27:22.3 -i myinput.mkv ...
Signed-off-by: Vitaly _Vi Shukela <vi0oss@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
With there being two hwaccels that use the CUDA pix_fmt now, just
relying on the pix_fmt to identify the selected hwaccel is not enough
anymore.
So this checks if the user explicitly selected a hwaccel, and only
accepts that one.
* commit 'a58873b11198d04670b7f98f5a8a749d742db7c5':
avconv: when using -loop option bail out if seek to start fails
Merged-by: James Almer <jamrial@gmail.com>
Some parts of the code are based on a patch by
Timo Rothenpieler <timo@rothenpieler.org>
Merges Libav commit b9129ec466.
Due to the name clash with our cuvid decoder, rename it to nvdec.
This commit also changes the Libav code to dynamic loading of the
cuda/cuvid libraries.
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
Fixes looping files without audio or when using stream_copy, where
ist->nb_samples is not set since no decoding is done.
This fixes ticket #5719 and also fixes an endless loop with the sample
in ticket #6139.
Signed-off-by: Peter Große <pegro@friiks.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Typically only a small subset of the SDL texture formats are supported directly
by the SDL renderer drivers, the rest is software emulated. It's better if
libswscale does the format conversion to a hardware-accelerated texture format
instead of SDL.
This should fix video render slowdowns with some texture formats after
3bd2228d05.
Signed-off-by: Marton Balint <cus@passwd.hu>
* commit '908f737d6c2900b5d34319ca6ea1d1cb71221463':
cmdutils: Mark conditionally used variable as av_unused
Merged-by: James Almer <jamrial@gmail.com>
Since a7da134742, flush packets are passed
to process_input_packet() during stream copy. This modifies the input
timestamp handling to ignore them - since they contain no data, timestamps
should not be affected.
* commit '91622f6446b463abe6507ad2cd5d1fbf7e49c424':
avconv: Always initialize the opkt struct on streamcopy
Merged-by: James Almer <jamrial@gmail.com>
It has no effect whatsoever since the major bump.
Replace the flag's documentation to reflect this as well.
Signed-off-by: James Almer <jamrial@gmail.com>
Otherwise the frame size of the codec is not set in the buffersink.
Fixes ticket #6603 and the following simpler case:
ffmpeg -c aac -filter_complex "sine=d=0.1,asetnsamples=1025" out.aac
Signed-off-by: Marton Balint <cus@passwd.hu>
This has been unused for a long time, and the original purpose has been
replaced by the per-stream hwaccel_flags.
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>
This is required for FLV files, for which duration_pts comes out to be zero.
Signed-off-by: Sasi Inguva <isasi@google.com>
Reviewed-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Since af1761f7b5 ffmpeg waits for a frame in each
stream before writing the output header. If we are using threaded decoding for
attached pictures, we have to read till EOF to be able to finally flush the
decoder and output the decoded frame. This essentially makes ffmpeg buffer all
non-attached picture packets, which will cause a "Too many packets buffered for
output stream" eventually.
By forcing single threaded decoding, we get a frame from a single packet as
well and we can avoid the error.
Fixes part of ticket #6375:
ffmpeg -i 46564100.mp3 -acodec libmp3lame -ab 128k -ac 2 out.mp3
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
* commit 'c95169f0ec68bdeeabc5fde8aa4076f406242524':
build: Move cli tool sources to a separate subdirectory
Merged-by: James Almer <jamrial@gmail.com>
