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This reduces the dependency on unistd.h which is not available
on all systems.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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We generally do not declare variables within for statements and
there are compilers that choke on such constructs.
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We do not allow user filters, so avtools shouldn't use them either.
It also allows to reuse buffer management code from avconv, thus
reducing duplication.
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Also add the public interface libavfilter/buffersink.h.
Based on a commit by Stefano Sabatini.
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fixes Bug#280
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SDL only supports s16 sample format and a limited number of channel layouts.
Some versions of SDL on some systems support 4-channel and 6-channel output,
but it's safer overall to downmix any layout with more than 2 channels to
stereo.
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This feature is complex, of questionable utility, and slows down
normal decoding.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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The buffer must have its dimension, pixel format and aspect ratio
set.
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This way we don't require a clearly defined corresponding input stream.
The result for the xwd test changes because rgb24 is now chosen instead
of bgra.
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This is required for letting applications to create and destroy
AVFilterInOut structs in a convenient way.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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av_freep()ing inside configure_video_filters() leaves a dangling
reference in the calling code, and the filter string is needed again when
reconfiguring video filters for a size change.
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If get_filtered_video_frame failed above, tb might not be
initialized at all, so don't scale using it.
This fixes cases where avplay could crash if aborting
avformat_find_stream_info with ctrl+c.
Signed-off-by: Martin Storsjö <martin@martin.st>
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Also remove one pointless zero initialization in rangecoder.c.
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The AVOptions based default to threads auto in 2473a45c8
works only if avplay does not use custom option handling
for -threads.
CC: <libav-stable@libav.org>
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Fixes seeking after decoder has already been flushed for codecs using
CODEC_CAP_DELAY.
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AV_NUM_DATA_POINTERS instead of 4.
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Error recognition flags can and should be set directly with AVOptions.
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Using threaded decoding by default breaks backward compatibility if
AVHWAccel is used or if an appliction sets threadunsafe callbacks.
Avconv and avplay still use -threads auto if not specified.
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Since we don't use avio_set_interrupt_cb for interrupt callbacks,
we don't need to call it to reset the interrupt cb either.
This avoids a warning about use of deprecated functions.
Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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avfilter_copy_frame_props() avoids code duplication and increases
robustness.
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The sample aspect ratio is a per-frame property, so it makes sense to
define it in AVFrame rather than in the codec/stream context.
Simplify application-level sample aspect ratio information extraction,
and allow further simplifications.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
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This was intended as an optimisation for skipped blocks in MPEG2
P-frames and never used elsewhere. Removing this "optimisation"
speeds up MPEG2 decoding by 1-2% (ARM Cortex-A9).
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Multi-channel output works just fine for me with SDL 1.2.14.
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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this fixes a crash when cycling audio streams if the spectrograph is
displayed.
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Calling the init function will become mandatory at some later
point. By calling it, more heavy network init (such as SSL/TLS
library init) can be done once at startup, instead of implicitly
when used (which could lead to it being done a number of times).
Signed-off-by: Martin Storsjö <martin@martin.st>
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The blue channel went missing when toggling fullscreen on Mac OS X.
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SDL 1.2.14 works fine with default colorspace on macosx and seems
to have some issues with 24bit surfaces and resize in addition.
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fixes a memleak
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fixes a memleak
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This way it can be applied to cmdutils too -- e.g. showing the banner
and printing startup messages.
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CODEC_CAP_DELAY set.
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This is the first step to removing the globals plague from avtools.
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Allows cmdutils to call each tool's own cleanup function.
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Replace it with newly introduced libavutil API.
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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