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

$subject. Have used this for loopback testing with mpegts.c.

-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
[2. text/x-diff; 0001-mpegtsenc-support-CODEC_ID_AAC_LATM.patch]

From 0f7f9db4b7da1793996af6dda84298507703759a Mon Sep 17 00:00:00 2001
From: Peter Ross <pross@xvid.org>
Date: Sun, 9 Jan 2011 09:45:50 +1100
Subject: [PATCH] mpegtsenc: support CODEC_ID_AAC_LATM
Signed-off-by: NMans Rullgard <mans@mansr.com>

fix compile on OS/2
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

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

poll() is only used by networking code, so the fallback should
only be built if networking is enabled.  Also remove CONFIG_FFSERVER
condition from the declarations.

This should fix building on systems without poll(), broken
by a8475bbd.
Signed-off-by: NMans Rullgard <mans@mansr.com>

Add an error message in case the user requests to write more than one file
and the path does not contain a "%d" or "%0Nd" pattern.
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

The output was changed by a7827a17.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

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

According to EN 300 468 section 3.1 (Definitions):

   Unless otherwise specified within the present document all
   "reserved_future_use" bits is set to "1".

This was not the case for SDT generation so this patch fixes it.
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

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

In the start_frame() debug log, print the reference pos value rather than the evaluated value converted to int.

That's required because -1 is evaluated as NAN, which converted back
to int looks like a random number, this is especially annoying when
debugging sources with undefined pos (as the video4linux2 device).
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

Replace * (uint32_t *) buf accesses with AV_WN32A/AV_COPY32.

the sdp demuxer did not forward it at all while the rtsp demuxer assumed
a single kind of error

Select has limitations on the fd values it could accept and silently
breaks when it is reached.

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

This reduces the symbols exported by libavformat from 699 to 451.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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: NMans Rullgard <mans@mansr.com>

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

based on Alex Converse's "Fix ADPCM MS in mov muxing" patch

In mov demuxer, set adpcm_ms and adpcm_ima_wav frame size to stsd samples per packet.
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

40% faster in ff_iir_filter_flt() when c->order == 2.

That unbreaks compilation of vaapi and dxva2
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

This also lists the objects from those two libraries as internal (by adding
the ff_ prefix) so that they can then be hidden via linker scripts.

It probably also fixes a memleak or two.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This reverts commit c34461b3.
The wrong version of the patch was committed.

Fix C VP8 H+V MC functions which do two-dimensional 4/6-tap filters to
not overread beyond their edges if the second filter is 4-tap, since
the outer pixels aren't there anymore since
44002d83.

None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: NMans Rullgard <mans@mansr.com>

The iff.h header only declared one function that is now static, the
libavformat/iff.c source file wasn't using it before. Drop the file
entirely.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

It is only used to generate band_start_tab, which about the same size, at
runtime, so it's simpler just to always hardcode band_start_tab.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This removes ff_get_ref_perms_string, ff_dprintf_ref and ff_dprintf_link
fro the interface of libavfilter.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

Signed-off-by: NJason Garrett-Glaser <jason@x264.com>

The reserved bits between PCR base and extension fields must be
set to 1.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

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