Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit b9a639ddd6)

This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit c73d99e672)

Gcc 4.6 only preserves the first value when using an array with an "m"
constraint.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 770c410fbb)

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

Tested to compile with lavc major bump.

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

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

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

This was missed when pkt_pts was first added.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Mans Rullgard <mans@mansr.com>

This patch changes the exponent difference threshold in the exponent
strategy decision function of the AC-3 encoder.  I tested lowering in
increments of 100.  From 1000 down to 500 generally increased in quality
with each step, but 400 was generally much worse.

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

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

This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.

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

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 71e0bee9ea)

(cherry picked from commit fe9a3fbe42)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e86e858111)

Adds some duplicated code, but avoids duplicate edge checks and similar.
~0.5% faster overall on Parkjoy test sample.
(cherry picked from commit 64233e702a)

From ~550 cycles (C version) to 170 (SSE/x86-64), 206 (MMX/x86-32)
and 196 (SSE2/x86-32) cycles.
(cherry picked from commit 81f2a3f4ff)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit d19b744a36)

DSPContext.vector_fmul_window()
DCADSPContext.lfe_fir()
SynthFilterContext.synth_filter_float()

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 80ba1ddb58)

Gcc 4.6 only preserves the first value when using an array with an "m"
constraint.

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

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

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

Adds some duplicated code, but avoids duplicate edge checks and similar.
~0.5% faster overall on Parkjoy test sample.

From ~550 cycles (C version) to 170 (SSE/x86-64), 206 (MMX/x86-32)
and 196 (SSE2/x86-32) cycles.

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

DSPContext.vector_fmul_window()
DCADSPContext.lfe_fir()
SynthFilterContext.synth_filter_float()

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

Merge an if and a switch.
(cherry picked from commit 73be29b0c4)

Merge an if and a switch.

dprintf clashes with POSIX.1-2008
(cherry picked from commit dfd2a005eb)

Gives decoded output identical in length to faac commandline encoder.
Fixes Issue 670.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 243f8241db)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e0eb963aaa)

This moves the fields needed by asm near the top, before any
structs or other members which complicate the offset calculation.
Modifying other structs will no longer require updating the offsets,
and the asm code is slightly simpler due to the smaller offsets.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit d461a47317)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 3af1fe829e)

(cherry picked from commit 0745116c10)

(cherry picked from commit 2e27959879)

From ~780 cycles to 551 cycles, mostly just by using libc memcpy()
instead of manually shuffling individual bytes around.
(cherry picked from commit e5262ec44a)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e5c82df80e)

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 3c802cabba)

Replace * (uint32_t *) buf accesses with AV_WN32A/AV_COPY32.
(cherry picked from commit 9d4bdcb714)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 5ce5dbc5f3)

This significantly reduces the size of the symbol table in the generated ELF
shared object (as well as the other linked tables).

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit ac28ce5fac)

dprintf clashes with POSIX.1-2008

Gives decoded output identical in length to faac commandline encoder.
Fixes Issue 670.

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

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

This moves the fields needed by asm near the top, before any
structs or other members which complicate the offset calculation.
Modifying other structs will no longer require updating the offsets,
and the asm code is slightly simpler due to the smaller offsets.

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

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

From ~780 cycles to 551 cycles, mostly just by using libc memcpy()
instead of manually shuffling individual bytes around.

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