Reviewed-by: Michael Bradshaw
Reviewed-by: Paul B Mahol

Reviewed-by: Paul B Mahol

Suggested by Jean First.

Signed-off-by: Javier Cabezas <jcabgz@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Jindrich Makovicka <makovick@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

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

This one was missed in the previous fraps fix, the
allocation is exactly the same in both cases.
Fixes fraps-v5 under valgrind.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Fixes use of uninitialized data errors under valgrind.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Fixes FATE failures due to uninitialized reads under valgrind
for these two codecs.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

This is needed in case the get_buffer() callback doesnt set
width/height.
Ideally all decoders would make calls through some wraper
to the callbacks and that wraper would call ff_init_buffer_info()
But until thats done, the default reget buffer must call this
itself as it needs the values for the changed size check later.

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

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

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

The same as av_fast_malloc but uses av_mallocz and keeps extra
always-0 padding.
This does not mean the memory will be 0-initialized after each call,
but actually only after each growth of the buffer.
However this makes sure that
a) all data anywhere in the buffer is always initialized
b) the padding is always 0
c) the user does not have to bother with adding the padding themselves
Fixes another valgrind warning about use of uninitialized data,
this time with fate-vsynth1-jpegls.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

This combination is quite odd and almost certainly a bug if
it happens.

Reviewed-by: Justin Ruggles <justin.ruggles@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is safer

Reviewed-by: Justin Ruggles <justin.ruggles@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

fixes "warning: assignment from incompatible pointer type"

Change log level from ERROR to WARNING and provide more specific
information in the message itself.

Fixes compilation with NASM.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

This avoids fate breakage from bumping version.

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

This allows correct output pix_fmt auto-selection
if the input pix_fmt is yuva420.

Fixes ticket #290.

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

Overall almost 4% faster, idct_add down from 350 to 85 cycles, idct_dc_add
down from 83 to 30 cycles.

squash: rv34 idct rearrange partial register loads

Implement 1-pass inverse transform and reconstruction for inter blocks.

This reworks the frame skipping code such that the reference
buffers are still updated according to the header.
However it also ensures that the current frame will not end
up in any reference buffer.
Also fixes a hang with frame-multithreading, probably because
get_buffer was already called and would have reset the progress,
however the frame could remain in framep due to the missing update
(or it could be assigned to next_framep and a skip_frame skip would
then write it into framep - there might be even more failure modes).
Sample might become available at samples/nsv/vp8.nsv

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This is required by the spec and fixes video-1frag.ogg.48.ogg. (FPE)

Based on the debuging work of Oana Stratulat and ubitux.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This allows audio encoders to optionally take an AVFrame as input and write
encoded output to an AVPacket.

This also adds AVCodec.encode2() which will also be usable by video and
subtitle encoders once support is implemented in the public functions.

This is a convenience function for the user to fill audio AVFrame information.

Extract processing of intra 16x16 blocks from intra macroblock
processing.
Also implement a function performing inverse transform and block
reconstruction for DC-only blocks in 1 pass instead of 2.

Split inter/intra macroblock handling code. This will allow further
optimizations such as performing inverse transform and block reconstruction
in a single pass as well as specialize code.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Do not fail audio decoding with avcodec_decode_audio3 if user has set a
custom get_buffer. Strictly speaking, this was never allowed by the API,
but it seems that some software packages did so anyways. In order to
unbreak applications (cf. http://bugs.debian.org/655890), this change
clarifies the API and overrides the custom get_buffer() with the defaults.

This change is inspired by a similar
commit (c3846e3eba) in FFmpeg.

Signed-off-by: Reinhard Tartler <siretart@tauware.de>