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

Specifies how the server verifies client SWF files before allowing the
files to connect to an application. Verifying SWF files is a security
measure that prevents someone from creating their own SWF files that can
attempt to stream your resources.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Provides an option to disable mix level normalization
Signed-off-by: NDiego Biurrun <diego@biurrun.de>

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

The _checkbw calls were changed to use transactionId 0 in commit
82613564 so that servers would not return _result/_error about it.
While this is the strict interpretation of the spec, there are
servers that return _error about it, even if transactionId was 0.

The latest version of EvoStream Media Server (the commercial version
of crtmpserver) behaves properly as described, i.e. returning an
_error normally but not returning anything when using transactionId
0. The latest version of crtmpserver (right now at least) doesn't
behave like this though, it returns an error even if transactionId
was 0.

There are also other servers that return errors even if transactionId
is set to 0. Therefore set a proper transaction id so that the invoke
can be tracked and the error properly ignored instead.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

It is impossible for bits to be 15 here so the special case is
not needed.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This function is always called with a non-negative argument, so
those special cases are not needed.  In the places the argument
might be zero, the return value for a zero argument does not matter
since it would then be used to scale an array full of zeros.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

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

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

Note that the symbols used to run the hardware decoder in asynchronous mode
have been marked deprecated and will be dropped at a future version bump.
Signed-off-by: NDiego Biurrun <diego@biurrun.de>

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

A new hidden config variable is added for the codecs that depend on
the mpegvideo encoding parts.

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

Prevents reading past the end of frame buffer.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

0x03 (bytes read report) is a known type and should be safely ignored
beside in debug situations.

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

To access data at multiple fixed offsets from a base address, this
code uses a single "m" operand and code of the form "32%0", relying on
the memory operand instantiation having no displacement, giving a final
result of the form "32(%rax)".  If the compiler uses a register and
displacement, e.g. "64(%rax)", the end result becomes "3264(%rax)",
which obviously does not work.

Replacing the "m" operands with "r" operands allows safe addition of a
displacement.  In theory, multiple memory operands could use a shared
base register with different index registers, "(%rax,%rbx)", potentially
making more efficient use of registers.  In the cases at hand, no such
sharing is possible since the addresses involved are entirely unrelated.

After this change, the code somewhat rudely accesses memory without
using a corresponding memory operand, which in some cases can lead to
unwanted "optimisations" of surrounding code.  However, the original
code also accesses memory not covered by a memory operand, so this is
not adding any defect not already present.  It is also hightly unlikely
that any such optimisations could be performed here since the memory
locations in questions are not accessed elsewhere in the same functions.

This fixes crashes with suncc.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This code has been disabled since 2003.  Nobody will ever look at
it again.
Signed-off-by: NMans Rullgard <mans@mansr.com>

Under some circumstances, suncc will use a single register for the
address of all memory operands, inserting lea instructions loading
the correct address prior to each memory operand being used in the
code. In the yadif code, the branch in the asm block bypasses such
an lea instruction, causing an incorrect address to be used in the
following load.

This patch replaces the tmpX arrays with a single array and uses a
register operand to hold its address. Although this prevents using
offsets from the stack pointer to access these locations, the code
still builds as 32-bit PIC even with old compilers.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This fixes two issues preventing suncc from building this code.

The undocumented 'a' operand modifier, causing gcc to omit a $ in
front of immediate operands (as required in addresses), is not
supported by suncc.  Luckily, the also undocumented 'c' modifer
has the same effect and is supported.

On some asm statements with a large number of operands, suncc for no
obvious reason fails to correctly substitute some of the operands.
Fortunately, some of the operands in these statements are plain
numbers which can be inserted directly into the code block instead
of passed as operands.

With these changes, the code builds correctly with both gcc and
suncc.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This code contains a C array of addresses of labels defined in
inline asm.  To do this, the names must be declared as external
in C.  The declared type does not matter since only the address is
used, and for some reason, the author of the code used the 'void'
type despite taking the address of a void expression being invalid.

Changing the type to char, a reasonable choice since the alignment
of the code labels cannot be known or guaranteed, eliminates gcc
warnings and allows building with suncc.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This avoids having the compiler redundantly mask the values to
the smaller size.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

Although a reasonable compiler will probably optimise out the
actual store and load, this operation still implies a truncation
to 16 bits which the compiler will probably not realise is not
necessary here.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

Writing the scaled excitation to a scratch buffer (borrowing the
'audio' array) instead of modifying it in place avoids the need
to save and restore the unscaled values.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

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

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

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

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

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

Use saturating addition functions instead of 64-bit intermediates
and separate clipping.  This is much faster when dedicated
instructions are available.
Signed-off-by: NMans Rullgard <mans@mansr.com>