Commits 43bc5cf9 and c5371f77 add code for skipping initial zeros in mp3
packets. This code forgot to report to the user that data was skipped at
all.

Since audio codecs allow partial packet decoding, the user application
has to rely on the return value. It will remove the data reported as
consumed by the decoder, and feed it to the decoder again. This resulted
in the mp3 frame after the zero region to be decoded over and over
again, until the zero region was finally skipped by the application.

Fix this by including the amount of skipped bytes to the number of
consumed bytes returned by the decode call.

Fixes trac ticket #4890.

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

Tested-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

The DDTS atom is defined in ETSI TS 102 114, v1.4.1, Annex E.
This is useful for DTS-HD formats, some of which cannot be
decoded by dcadec.c or libdcadec.
Signed-off-by: Shawn Singh <shawnsingh@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

CID 1256 is specified as using the same table for luma and chroma,
which is the same as CID 1235 luma table. This is consistent with
the format supposedly being RGB, although most sequences seem to
actually be YCbCr-encoded.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

VideoToolbox also implements a software decoder for h264, and will fallback to
using it if the file cannot be decoded on the GPU. In these cases though,
we want the hwaccel to fail so that we can use the libavcodec software decoder
instead of the Apple one.
Signed-off-by: wm4 <nfxjfg@googlemail.com>

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

This silences some of the -Wunused-function warnings when compiled with --disable-mmx, e.g
http://fate.ffmpeg.org/log.cgi?time=20150919094617&log=compile&slot=x86_64-archlinux-gcc-disable-mmx.
Header guards are too brittle and ugly for this case.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes #4886
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '26e8fa3b':
  tiny_psnr: Use the correct abs() version
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'c9943f00':
  vf_framepack: Use av_image_copy() where appropriate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'e94e651c':
  dnxhddec: Enable frame threading

FFmpeg has much more threading modes for DNxHD
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'c49cbecb':
  dnxhddec: Decode and use interlace mb flag
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'c5e5e630':
  riff: Add support for RV40 codec in AVI
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'b5e4f393':
  avconv: Make the private options discovery more manifest
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '3973f0f7':
  Revert "avconv_opt: Allow printing private options"
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'cf7d2f2d':
  lavc: Simplify checking quant bias option
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '84dfc426':
  avresample: Remove an unused variable
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '4885bde3':
  motion_est_template: Fix undefined left shift of negative number
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '977f41e2':
  mlpdec: Fix a undefined left shift of negative number
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '948f3c19':
  lavc: Make AVPacket.duration int64, and deprecate convergence_duration
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

This fixes -Wshift-negative-value reported with clang 3.7+, e.g
http://fate.ffmpeg.org/log.cgi?time=20150919172459&log=compile&slot=x86_64-darwin-clang-polly-notiling-3.7.
Note that the patch crucially depends on int >= 32 bits,
an assumption made in many places in the codebase.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'd00bb8ad':
  mips: intreadwrite: Only execute that code for mips r1 or r2

Not merged, as FFmpeg has a separate condition to protect this code.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '1016a75c':
  configure: mips: Support mips r6, r2 and r1

Not merge, as MIPS support in ffmpeg is handled
quite differently and I do not have an env to test.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

This correctly adjust chroma subsampling for column interleaved mode,
and allows future high bitdepth support.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

This bit is 1 in some samples, and seems to coincide with interlaced
mbs and CID1260. 2008 specs do not know about it, and maintain qscale
is 11 bits. This looks oversized, but may help larger bitdepths.

Currently, it leads to an obviously incorrect qscale value, meaning
its syntax is shifted by 1. However, reading 11 bits also leads to
obviously incorrect decoding: qscale seems to be 10 bits.

However, as most profiles still have 11bits qscale, the feature is
restricted to the CID1260 profile (this flag is dependent on
a higher-level flag located in the header).

The encoder writes 12 bits of syntax, last and first bits always 0,
which is now somewhat inconsistent with the decoder, but ends up with
the same effect (progressive + reserved bit).
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This reverts commit 7bb1c1bf.
A long existing version in the form of avconv -h decoder=h264 already
existed, and this just duplicates it.

This fixes a -Wunused-variable warning.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This fixes a -Wshift-negative-value warning reported with clang 3.7+.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This fixes a -Wshift-negative-value warning reported with clang 3.7+.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Note that convergence_duration had another meaning, one which was in
practice never used. The only real use for it was a 64 bit replacement
for the duration field. It's better just to make duration 64 bits, and
to get rid of it.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>