Age | Commit message (Collapse) | Author |
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Silence a valgrind warning about uninitialized memory.
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In particular we needed a '\n' at the end of the line when the format is emulated.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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This is consistent with the rest of the file and makes listing of
emulated formats possible when ffmpeg is compiled with libv4l2.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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An input channel could have been previously set with another application, like
v4l2-ctl, so if no input channel is specified use the previosly selected one.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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fullscreen mode
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Fix a memory leak because the compat implementation of
AV_BUFFERSINK_FLAG_PEEK is not identical to the previous one.
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Our previous release (1.1) contained a version 54 libavdevice
and this version here is not ABI compatible thus a bump is
needed
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
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The current code returned a period=0, resulting in identical pts for all frames
after time-filtering. This is because AV_TIME_BASE_Q={1, AV_TIME_BASE} and
not {AV_TIME_BASE, 1}. With this patch the correct period in microseconds is computed.
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* commit 'd8b31be6caebd8d1321ecb754b6e7daaf81dc111':
Add the bumps and APIchanges entries for reference counted buffers changes.
Conflicts:
Changelog
doc/APIchanges
libavcodec/version.h
libavdevice/version.h
libavfilter/version.h
libavformat/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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struct buff_data contains a pointer to struct video_data, so passing the
file descriptor again is redundant.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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In particular:
1) save errno before it (possibly) gets overwritten by other calls
2) do not forget to enqueue the buffer again in case of error
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '1afddbe59e96af75f1c07605afc95615569f388f':
avpacket: use AVBuffer to allow refcounting the packets.
Conflicts:
libavcodec/avpacket.c
libavcodec/utils.c
libavdevice/v4l2.c
libavformat/avidec.c
libavformat/flacdec.c
libavformat/id3v2.c
libavformat/matroskaenc.c
libavformat/mux.c
libavformat/utils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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This will allow us to avoid copying the packets in many cases.
This breaks ABI.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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just one buffer left available
This will avoid the possibility that we dequeue more buffers than we
have obtained from the v4l2 driver.
Fixes ticket #1570
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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This ensures that fps and other values are estimated correctly,
the probesize also is intended to limit disk/protocol reads which
does not apply to lavfi inputs at all.
Fixes Ticket1051
Something similar could be usefull to other input devices
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Also cleanup exported symbols
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Set ret to 0 before enumerating standards in v4l2_set_parameters(), avoid
use of uninitialized variable.
Regression introduced in 60950adc18fe145a235211e75da68ab07123fcaa.
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In particular, avoid use of non-thread-safe strerror(), and store errno
before calling av_log().
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Upstream decided to split the paranoia interface and move the headers
accordingly.
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Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
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Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
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Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
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Generally speaking, there are two types of v4l2 devices [1]:
1) devices that support a standard, like PAL or NTFS (tv cards, for example). For
this class of devices the framerate is fixed by the standard (for example PAL uses
25 fps) and the v4l2 driver cannot usually negotiate a different framerate (unless
it can skip frames on the driver side, to save I/O bandwidth).
2) devices for which the notion of standard does not make sense (webcams, for example).
For these devices it is usually possibile to request a desidered framerate.
In either case, the desidered frame rate can be requested when the VIDIOC_G_PARM
ioctl returns the V4L2_CAP_TIMEPERFRAME flag in the capability field.
Currently the code does not check for V4L2_CAP_TIMEPERFRAME and supports only the
second category of devices, returning a time per frame of 0/0 for devices in the
first group that do not permit to negotiate the framerate.
This patch adds support to read the correct framerate in all cases.
[1] http://linuxtv.org/downloads/v4l-dvb-apis/standard.html
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
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Since the user is expected to choose the standard by name (with -standard
option), add the possibility to list all the supported standards.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
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Because libavdevice/v4l2 is a demuxer, it makes sense to look for
decoders instead of encoders when listing the formats supported by the
device.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
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After opening the device, the first thing we should do is selecting the
input. This is because the image formats (VIDIOC_ENUM_FMT ioctl) and the
standards (VIDIOC_ENUMSTD ioctl) supported may depend on the selected
input ([1] and [2]).
[1] http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-enum-fmt.html
[2] http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-enumstd.html
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
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errors
Make device_try_init() return an error value, and allow to properly
report errors which are not due to a wrong pixel/codec configuration.
In particular, report intelligible feedback in case of busy device.
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* commit '80ac87c13dc8c6c063e26a464c5c542357c0583f':
lavc: support ZenoXVID custom tag
libcdio: support recent cdio-paranoia
float_dsp: Add #ifdef HAVE_INLINE_ASM around vector_fmul_window
theora: Skip zero-sized headers
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Fix a warning and random failures.
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Reviewed-by: Stefano Sabatini
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Reviewed-by: Stefano Sabatini
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Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
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Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
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