samples_size and samples_idx are supposed to be multiple of
channels at all time. If they are, the division is exact;
if they are not, something is very wrong in the code.

esc->table was inited based on codec->id: re-testing codec->id
is code duplication and can lead to inconsistencies.

MM_PREAMBLE_SIZE is subtracted from buf_size almost immediately.
The original size is still in avpkt->size.

Add "data" and "extradata" attributes to the schema.
Add "tag" element in "streams".
Print extradata before tags to avoid closing the element.

Fix trac ticket #1588.

This ensures that the output buffers will have the channel layout set,
which is required by filters.

Also consistent with ffmpeg.c behavior.

This is required otherwise it is not always possible to guess the number
of channels from the layout, for example if the channel layout is
unknown.

There is no need to duplicate the input reference, since a filter should
not pass along a reference which is later modified. If this happens the
filter passing the reference should be fixed.

Also improve consistency with start_frame() of settb, allowing a pending
factorization.

The documentation was erroneously removed in 7cf9aadd.

Fixes Ticket1586
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket1502
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  avformat: Drop pointless "format" from container long names
  swscale: bury one more piece of inline asm under HAVE_INLINE_ASM.
  wv: K&R formatting cosmetics
  configure: Add missing descriptions to help output
  h264_ps: declare array of colorspace strings on its own line.
  fate: amix: specify f32 sample format for comparison
  tiny_psnr: support 32-bit float samples
  eamad/eatgq/eatqi: call special EA IDCT directly
  eamad: remove use of MpegEncContext
  mpegvideo: remove unnecessary inclusions of faandct.h
  af_asyncts: avoid overflow in out_size with large delta values
  af_asyncts: add first_pts option

Conflicts:
	configure
	libavcodec/eamad.c
	libavcodec/h264_ps.c
	libavformat/crcenc.c
	libavformat/ffmdec.c
	libavformat/ffmenc.c
	libavformat/framecrcenc.c
	libavformat/md5enc.c
	libavformat/nutdec.c
	libavformat/rawenc.c
	libavformat/yuv4mpeg.c
	tests/tiny_psnr.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

When start_frame has returned, the buffer reference's PTS
may have been modified by another filter.

Based on code by: carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

broken by: cbb2c95e
i had fixed that commit but pushed from an old branch
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Also bump minor version and add APIchanges entry.

While here refactor code.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

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

* qatar/master:
  flvdec: remove spurious use of stream id
  lavf: deprecate r_frame_rate.
  lavf: round estimated average fps to a "standard" fps.

Conflicts:
	ffmpeg.c
	ffprobe.c
	libavformat/avformat.h
	libavformat/electronicarts.c
	libavformat/flvdec.c
	libavformat/rawdec.c
	libavformat/utils.c
	tests/ref/fate/iv8-demux
Merged-by: Michael Niedermayer <michaelni@gmx.at>

The new name is more meaningful in that context.

Keeping the set options in the context when the component is still used
can be useful for debugging purposes.

Avoid to fill the same picture again and again with the same content.

Optimize computation, and provides an example for the use of the
AV_PERM_REUSE permission flag.

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