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.
The shift parameter was removed from this interface in 7e1ce6a.
This updates the Altivec implementation to match.
Signed-off-by: Mans Rullgard <mans@mansr.com>
To load unaligned vector data in the usual way, explicit vec_ld()
should be used rather than dereferencing a pointer to a vector type.
When the VSX extension is enabled, gcc may compile vector pointer
dereferences using the VSX lxvw4x instruction instead of the lvx
instruction typically used with Altivec/VMX. As the behaviour of
these instructions with unaligned addresses differs, it is important
that only lvx is used here.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Allowing dsputil functions to assume the stride is a multiple of 16
even for smaller block sizes can simplify their implementation.
This appears to be the only place this guarantee is not met.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Currently it always exits with an error when more than
one position is specified.
Fixes trac issue #1266.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This is useful for marking progressive video processed by the filter as
interlaced, avoiding the interlaced flag to switch back and forth at each
frame.
This new mode is useful for generating frames for interlaced video
displays. Typically interlaced video displays have no form of field
synchronisation. This new mode guarantees correct field order without
any requirement for field synchronisation.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
* qatar/master:
mkv: mark corrupted packets and return them
mkv: forward EMBL block data error
avcodec: introduce YCoCg colorspace
avcodec: cosmetic cleanup on header
aac sbr: align struct member by 32 byte.
Conflicts:
libavcodec/avcodec.h
libavformat/matroskadec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Non perceptual color model that aims to have an increase effectiveness
in compression like the normal YCbCr while having near-lossless/lossless
mapping to RGB.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* qatar/master:
4xm: fix invalid array indexing
rv34dsp: factorize a multiplication in the noround inverse transform
rv40: perform bitwise checks in loop filter
rv34: remove inline keyword from rv34_decode_block().
rv40: change a logical test into a bitwise one.
rv34: remove constant parameter
rv40: don't always do the full prev_type search
dsputil x86: revert a test back to its previous value
rv34dsp x86: implement MMX2 inverse transform
Merged-by: Michael Niedermayer <michaelni@gmx.at>
It is possible that just extending the RMMuxContext.streams
array would avoid it.
It is also possible that two audio streams will fail to mux
correctly as well, though at least it should not crash for
this reason.
I do not feel like checking either of these.
This patch fixes trac issue #1022 (at least it makes it
exit with a proper error message instead of crashing).
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Also fixes an (incorrect) "control reaches end of non-void function"
warning with some compilers.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
