Fixes ticket #892.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

The sporadic threading errors during fate-rv30 were caused by calling
ff_thread_await_progress with mb row -1 as argument. That returns
immediately since progress is initialized to -1. Not yet computed
motion vectors from the reference could be used for the first
macroblocks.

30-50% faster than the C implementation, 0.5% overall speedup on
bourne.rmvb.

Fixes ticket #823.

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

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

From the patch by Reimar Döffinger.

When decoding coefficients, detect whether the block is DC-only, and take
advantage of this knowledge to perform DC-only inverse transform.

This is achieved by:
- first, changing the 108x4 element modulo_three_table into a 108 element
  table (kind of base4), and accessing each value using mask and shifts.
- then, checking low bits for 0 (as they represent the presence of higher
  frequency coefficients)

Also provide x86 SIMD code for the DC-only inverse transform.

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

Reviewed-by: Michael Bradshaw

This is different than a normal get_bits() over read because
decode_audio_specific_config() creates its own GetBitContext.

Fixes Bug 170.

This should fix compilation with gcc-llvm (see darwin fate box)

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

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

Increase it by an arbitrary amount.
Fixes part of Ticket676

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

This is required to handle clobbering of XMM registers on Win64
correctly. Fixes FFT and all tests depending on FFT on Win64.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Timecode can be specified with a negative value in MOV...

This indicates that the actual frame size is based on the buf_size passed to
avcodec_encode_audio().

Fixes #740

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

The WAVE demuxer returns packets with many blocks per frame, which needs to be
parsed into single blocks. This has a side-effect of fixing the timestamps.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Fixes Ticket894

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

Statistics for bourne.rmvb -an -f null

1 thread:  37.12s user 0.03s system  99% cpu 37.174 total
2 threads: 47.63s user 0.24s system 185% cpu 25.807 total
4 threads: 41.21s user 0.30s system 327% cpu 12.674 total

Under certain conditions pictures could be released before they were
returned with frame-threading. Broken mv computation in the upcoming
rv34 frame-threading patch was caused by this.

To prevent contexts from running out of available pictures the loop
releasing "unused" pictures has to be run for B frames too.

Fixes Libav Bug 195.

This doesn't make the code handle sample rate or upsample/downsample
change properly but this is still a good sanity check.

Based on change by Michael Niedermayer.

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

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

Do not display garbage for invalid/unsupported bitfields values.

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

It is not necessary to store the bit stream length in a RV34DecContext
field.

Do not display garbage for invalid/unsupported bitfields values.

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

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

Fixes ticket #864 and ticket #897.

Fixes al_sbr_cm_48_5.1.mp4.

Switch to a broader detection of versions.

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

The functions are not used in any part of Libav, therefore testing them in the
cabac-test is unnecessary. Since this makes them unused, remove the functions.

Using an always_inline function makes the memcpy length a constant,
any reasonable compiler will replace it by a single mov instruction
without us having to duplicate the actual code.

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

This should finally fix the compilation issue on darwin

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