Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes invalid reads/writes with this sample:
http://packetstorm.linuxsecurity.com/1103-exploits/vlc105-dos.txt

Merged-by: Michael Niedermayer <michaelni@gmx.at>

This reverts commit 7e0a284b.
revert at authors request due to better impementation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reverts commit cc4d3dd3.
revert at authors request due to better impementation being available
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Functions interrupted by url_interrupt_cb should not be restarted.
Therefore using AVERROR(EINTR) was wrong, as it did not allow to distinguish
when the underlying system call was interrupted and actually needed to be
restarted.

This fixes roundup issues 2657 and 2659 (ffplay not exiting for streamed
content).
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

This is different from AVERROR(EINTR) because calls that fail with EINTR
should usually be restarted.
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

AVIOContext.error should be used directly instead.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The error should be caught in write_packet()/write_trailer()
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

This file is a bad idea and also badly outdated.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This increases the accuracy of coefficients, leading to improved quality.
Rescaling of the coefficients to full 25-bit accuracy is done rather than
offsetting the exponent values. This requires coefficient scaling to be done
before determining the rematrixing strategy. Also, the rematrixing strategy
calculation must use 64-bit math to prevent overflow due to the higher
precision coefficients.

This permits playback in ffplay when libavfilter is enabled.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

In the event of overflow, the JV_PADDING state will avio_skip over
any overflow bytes (using JVFrame.total_size).
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The documentation might be extended once/if a live/store override option
will have to be provided for non-compliant segmenter.

this permits playback in ffplay when libavfilter is enabled.

In the event of overflow, the JV_PADDING state will avio_skip over
any overflow bytes (using JVFrame.total_size).

In fbdev_read_packet(): nanosleep returns -1 in case of errors,
the EINTR check has to be done on errno.

Spotted by Nicolas.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Was missed in 3efbe137.

This reverts commit edaf1ae2.

breaks windows builds

This reverts commit 3f8040db.

breaks windows builds

This reverts commit 4fa18c56.

breaks windows builds

Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Fix the warning:
ffmpeg.c: In function ‘ffmpeg_exit’:
ffmpeg.c:509: warning: unused variable ‘j’
Signed-off-by: Mans Rullgard <mans@mansr.com>

Shaves at least 3KB off code size on x86, should improve cache utilization.
This would probably be useful to do for other decoders/encoders as well.

prob[0] is the only prob array ever accessed, so prob[1] can serve as padding
for prob[0].

A break statement was supposed to break out of two loops, but only broke out of one.
Didn't affect output, just could have been marginally slower.

Signed-off-by: Mans Rullgard <mans@mansr.com>

This makes existing pkg-config uses as well as the libsdl checks
use the new pkg-config helper functions, which should be more
robust against broken systems.
Signed-off-by: Mans Rullgard <mans@mansr.com>