Code originates from:
910b9f30 libavcodec/dsputil.c            (David Conrad        2010-05-27 04:39:27 +0000  334) void ff_emulated_edge_mc(uint8_t *buf, const uint8_t *src, int linesize, int block_w, int block_h,
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  335)                                     int src_x, int src_y, int w, int h){
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  336)     int x, y;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  337)     int start_y, start_x, end_y, end_x;
b5a093b3 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-25 20:22:36 +0000  338)
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  339)     if(src_y>= h){
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  340)         src+= (h-1-src_y)*linesize;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  341)         src_y=h-1;
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  342)     }else if(src_y<=-block_h){
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  343)         src+= (1-block_h-src_y)*linesize;
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  344)         src_y=1-block_h;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  345)     }
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  346)     if(src_x>= w){
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  347)         src+= (w-1-src_x);
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  348)         src_x=w-1;
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  349)     }else if(src_x<=-block_w){
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  350)         src+= (1-block_w-src_x);
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  351)         src_x=1-block_w;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  352)     }
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  353)
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  354)     start_y= FFMAX(0, -src_y);
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  355)     start_x= FFMAX(0, -src_x);
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  356)     end_y= FFMIN(block_h, h-src_y);
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  357)     end_x= FFMIN(block_w, w-src_x);
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

The attribute container of the top-level div is changed from "class" to
"id" to match the website CSS.

Improve consistency between website docs and local documentation style.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

It breaks some opaque samples.

This reverts commit d4fdaafd.

Tested-by: Val Malykh

* commit 'c7d4de3d':
  rtpdec_vp8: Don't return known-broken packets
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '90c784cc':
  rtpdec: Pass the sequence number to depacketizers
  configure: Make avconv depend on null, anull and resample filters

Conflicts:
	configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '69f086e0':
  build: avfilter: Remove duplicate compilation entry for vf_scale

Conflicts:
	libavfilter/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '511cf612':
  miscellaneous typo fixes

Conflicts:
	libavcodec/4xm.c
	libavcodec/lagarith.c
	libavcodec/parser.c
	libavcodec/ratecontrol.c
	libavcodec/shorten.c
	libavcodec/vda_h264.c
	libavformat/dvenc.c
	libavformat/wtv.c
	tools/patcheck
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '6906b193':
  lavc: add missing files for arm
  lavc: introduce VideoDSPContext

Conflicts:
	configure
	libavcodec/arm/dsputil_init_armv5te.c
	libavcodec/dsputil.c
	libavcodec/dsputil.h
	libavcodec/dsputil_template.c
	libavcodec/h264.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/x86/dsputil_mmx.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

* commit 'a925f723':
  rtp: Don't read priv_data unless it is allocated
  flvenc: Check whether seeking back to the header succeeded
  sapenc: Pass the title on to the chained muxers

Conflicts:
	libavformat/flvenc.c
	libavformat/sapenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This is built on the assumption that the first partition of each
VP8 packet is essential for decoding any later packet - if this
partition is broken/missed, the arithmetic coder gets out of sync
and decoding the bitstream in further packet ends up with total
garbage. If packets of a frame are lost, make sure the first
partition is intact (return only this part of the packet, nothing
else), otherwise stop returning data until the next keyframe is
received.

Alternatively, one would simply not return any packets at all
until the next keyframe, if packet loss is detected.
Signed-off-by: Martin Storsjö <martin@martin.st>

This allows depacketizers to figure out if packets have been lost.
Signed-off-by: Martin Storsjö <martin@martin.st>

it causes problems (incorrectly detect TS discontinuities)
 with a brokan TS file (test-audio-broken.ts)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Building avconv without that functionality makes little sense.

vf_scale should not be unconditionally compiled even if disabled.

This shrinks the tool manuals to a manageable size. Relevant manuals are
referenced in the "See Also" chapter.

Overall documentation inclusion should still be possible through the use
of a conditional variable set during configuration time, if someone feels
the need for a huge-wall-of-text-fashioned manual.

The metadata muxer/demuxer belongs to the formats documentation.

This fixes the colour of the transparent background (as seen with ffplay),
and makes the background of some non-keyframes transparent that was
incorrectly shown as opaque for some samples.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

This should fix valgrind complaints.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>