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

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

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

Adds a flag context_reinit to MpegEncContext to relieable keep track
of frame parameter changes which require a context reinitialization.
This is required for broken inputs which change the frame size but
error out before the context can be reinitialized.

This is mainly required for frame parameter changes during frame based
multithreading but single threaded usage profits too from avoiding
ff_MPV_common_end()/ff_MPV_common_init() cycles.

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

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

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

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

This file defines a single, huge function, MPV_motion(), which
although being declared inline is not actually inlined by the
compiler (for good reason).  There is thus no sense in defining
this function in a header file, resulting in multiple copies of
it in the final library.

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

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

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

16 seems a bit tight for current high end and expected near term future boxes.

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

The new lowres support is limited to decoders where lowres decoding
is possible in high quality.
I was not able to measure any speed difference, but if one is found
the 2-3 lines that might affect speed can be made compile time conditional

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

This feature is complex, of questionable utility, and slows down
normal decoding.

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

The struct has some of its fields changed, thus is not strictly const.

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

Interlaced images can have 32 references (16 per field), so limiting the
array size to 16 leads to invalid writes.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Patch attached.
From 2d4094fc0d Mon Sep 17 00:00:00 2001
From: Lou Logan <lou@lrcd.com>
Date: Mon, 12 Mar 2012 14:13:44 -0800
Subject: [PATCH] cosmetics: fix some typos

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

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

Deprecate corresponding AVCodecContext field.

Deprecate corresponding AVCodecContext fields.

Deprecate CODEC_FLAG_CBP_RD.

Deprecate CODEC_FLAG_QP_RD.

Deprecate CODEC_FLAG2_STRICT_GOP.

Deprecate CODEC_FLAG2_SKIP_RD in favor of the corresponding mpv_flags
flag.

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

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

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

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

It is obscure, most likely unused and not bit-exact compared to
libavcodec due to a different IDCT transform algorithm.

Adds a new member to MpegEncContext to hold the number of used slice
contexts. Fixes segfaults with '-threads 17 -thread_type slice' and
fate-vsynth{1,2}-mpeg{2,4}thread{,_ilace} with --disable-pthreads.

This was intended as an optimisation for skipped blocks in MPEG2
P-frames and never used elsewhere.  Removing this "optimisation"
speeds up MPEG2 decoding by 1-2% (ARM Cortex-A9).

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

Simplify a little error resilience calls

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

Add the namespace to {AC_,DC_,MV_}{END,ERROR} macros

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

Signed-off-by: Anton Khirnov <anton@khirnov.net>

This reverts commit da22ba7df4.

Conflicts:

	libavcodec/mpeg12.c
	libavcodec/mpeg12.h

This reverts commit 3fc0830432.
The revert is done because the reasoning behind the commit was
flawed, closed_gop is not mpeg1/2 specific.

Conflicts:

	libavcodec/mpeg12.c
	libavcodec/mpeg12.h

This reverts commit da22ba7df4 since it
broke slice threading. Slice threading just duplicates MpegEncContext
so every value used during mpeg_decode_slice has to be in it.
A second patch will fix the illusion that Mpeg1Context is available
in mpeg_decode_slice.

It's MPEG-1/2 specific.

It's MPEG-1 specific.

It's used in lavf.