Since de0e219a cur_dts is sometimes invalid

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

I didnt find any case that triggers this but if it gets triggered it needs to be
investigated
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

a set ost->frame_rate does not imply CFR in ffmpeg

The changed fate tests had all wrong packet durations
(like 1/1000 or 1/90000)

There might be more cases in which is_cfr could be set
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '8ad5124b':
  movenc: Automatically flush after writing the initial moov
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'db9b7321':
  vsrc_color: implement frame rate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '1339009c':
  vf_showinfo: show timebase & framerate too
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '11f87ca7':
  vf_frei0r: also set AVFilterLink.frame_rate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '7d12cba9':
  vf_framepack: Check and update frame_rate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '65e73bc6':
  vf_interlace: implement frame rate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '018bdaed':
  setpts: add FRAME_RATE constant
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '5e91a5c5':
  testsrc: set output framerate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '9df477e0':
  yadif: update frame rate
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '1062880d':
  vf_fps: set frame_rate.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '61fb67dc':
  buffersrc: accept the frame rate as argument.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '48ff6683':
  lavfi: add a frame_rate field to AVFilterLink.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '79f5347a':
  avcodec: fix doxy placement
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '8de1ee9f':
  lavf: deprecate compute_pkt_fields2
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

This matches the Libav signature and simplifies merging future changes.

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

Fixes: CID1338331
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes CID1322329
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes CID1338336
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

If it is negative, it causes segmentation faults in decode_rle.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

ICC versions older than atleast 12.1.6 dont have the tzcnt intrinsics.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Matt Oliver <protogonoi@gmail.com>

Chapter-indexing can be expensive since chapters may be interspersed
throughout the entire file and may require many seeks - especially
costly when consuming a video over a remote protocol like http.
Furthermore it is often unnecessary, especially when only trying to get
video info (e.g. via ffprobe).
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Also support disabling them as they seem to cause problems to some
Users. They are also not allowed in IRT D-10 thus the default for
mxf_d10 is not to write them

This also decreases the filesize when no user comment are stored
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

this fixes the return code of avcodec_decode_video2 for gif decoding
and the gif frame data buffer is skipped properly
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

A negative sample rate causes assertion failures in av_rescale_rnd.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

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

In most other cases when writing fragmented mp4 files, the output
IO context is flushed after each fragment. Also flush it after
writing the initial moov, to have it behave in the same way.
Signed-off-by: Martin Storsjö <martin@martin.st>

Remove loops, output is also more interesting.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

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

* commit 'aeda1121':
  lavf: factor out freeing an AVStream
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '3efd71b4':
  avconv: set packet duration for CFR video streams
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'a0c71a57':
  lavf: initialize cur_dts to AV_NOPTS_VALUE for muxing
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'cc96018c':
  libopenh264enc: Set AVOption data type
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fcc49924':
  vdpau: Remove a spurious CONFIG_H263_VDPAU_HWACCEL
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>