The lavf-ffm test results change because ffmenc writes
AVCodecContext.flags/flags2 and the defaults for those change.

E.g. non_linear_quant mpeg2video private option.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Assemblers don't understand ! in %if statements.

Also implement sse2/ssse3/avx versions.

This allows combining multiple conditionals in a single statement.

This reverts commit fc115c80b7.

Tests are broken.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

MVDATA may or may not be transmitted. If it is not, both
dmv_x and dmv_y is to be assumed zero.

This may not trigger wrong picture in all systems, but
it's a bug nevertheless. Fixes SA10116.vc1 on my 64-bit
Windows 7.

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

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

Based in part by a fix from Michael Niedermayer <michaelni@gmx.at>

Fixes CVE-2011-3947

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

CC: libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

CC: libav-stable@libav.org

For such files, accumulating into an int would cause an overflow.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Jean First <jeanfirst@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Previously, it would not be read if refdist_flag was not set, however
according to the spec and the reference decoder, it should always be read.

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

If no data was seen for a stream decoder are returning 0 when fed with
empty packets for flushing. We can stop flushing when the decoder does
not return delayed delayed frames anymore. Changes try_decode_frame()
return value to got_picture or negative error.

CC: libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

CC: libav-stable@libav.org

Signed-off-by: Martin Storsjö <martin@martin.st>

The MDCT buffers in the decoder are only sized for up to 11 bits. The
reverse engineered documentation for WMA1/2 headers say that that for
all samplerates above 32kHz 11 bits are used. 12 and 13 bit support
were added for WMAPro. I was unable to make any Microsoft tools generate
a test file at a samplerate above 48kHz.

Discovered by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

CC: libav-stable@libav.org

The field frame_size isn't written to the output anywhere except
than in mov.

This facilitates stream copy from formats that don't set frame_size.

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Also add some space around operators and wrap a comment
that extends past the 80 char "limit"/guideline.

Signed-off-by: Martin Storsjö <martin@martin.st>

Prevents a crash of VLC during playback of a invalid matroska file,
found by John Villamil <johnv@matasano.com>.

CC: libav-stable@libav.org

Found by John Villamil <johnv@matasano.com>

MinGW doesn't have sleep, only _sleep (which is deprecated),
Sleep (which is defined in winbase.h and not in the standard
C headers) and usleep.

Signed-off-by: Martin Storsjö <martin@martin.st>

It can also optionally split the file into individual fragments,
which allows it to be served from any web server without any
server side support.

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

For ismv/isma, the time scale might not be the same as the sample
rate.

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes calculation of trackDuration if the MOVIentry array
is cleared. This is required by the fragmentation support in the
next patch.

Signed-off-by: Martin Storsjö <martin@martin.st>

Current code only writes 8 pixels of vertical edge for YUV422, which
causes MC artifacts when subsequent frames use data from that edge.

When the length is the escape value (15), the new length is calculated by
15 + get_bits(8) - 1.

Signed-off-by: Alex Converse <alex.converse@gmail.com>

There is only one stream, so it will always be index 0.
This also allows for removal of the private context.

also allows for removing some unused context fields

also allows for removing some unused context fields