Right now the buffer is zeroed, which does not represent silence for U8(P).

This will happen when the extradata is not a valid Speex header.

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

AVFrame.extended_data has to reset to the AVFrame.data of the current
thread context after copying the frame contents.
Fixes crashes with frame-threading after 2bc0de38.

When initialized as stereo, libspeex can decode either mono or stereo packets
and will output stereo.

If there is no extradata and the sample rate given by the user is not valid,
decode as ultra-wideband.

Speex detects non-speech periods and encodes them with just enough bits
to reproduce the background noise, aka ``comfort noise generation''.
Signed-off-by: Martin Storsjö <martin@martin.st>

Based on test code by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>

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

Based on a patch by Michael Niedermayer.
Signed-off-by: Martin Storsjö <martin@martin.st>

There are cases where strncpy() does exactly what is required.
A blanket ban forces more convoluted solutions to be used in those
cases and has been a cause of bugs.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Test inplace ECB, normal CBC and inplace CBC encryption/decryption.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

Some old assemblers still in use do not support named tags.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This might not be needed at the moment, but it's good practice to
pass it to all chained AVFormatContexts, if it would happen to be
used there at a later point.
Signed-off-by: Martin Storsjö <martin@martin.st>

This function causes several versions of armcc to miscompile code,
and the performance impact is small.
Signed-off-by: Mans Rullgard <mans@mansr.com>

All our ARM asm preserves alignment so setting this attribute
in a common location is simpler.  This removes numerous warnings
when linking with armcc.
Signed-off-by: Mans Rullgard <mans@mansr.com>

LDR with register offset and PC as base register is not available in
the Thumb instruction set so the addition must be done separately.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Make it consistent with the other function-like macros.

It should be vfw32.lib with MSVC.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Split away option settings, sanity checks and general setup.

Mostly cosmetic changes adding some intermediate to shorten the lines.