Just realized my previous patch doesn't work quite right.  I uploaded a better
sample file that actually has visible captions to /incoming/hevc_cc.ts.  I
tested with that file doing hevc->x264 and it works.

This is basically an exact copy of the existing h264 logic.
Signed-off-by: Will Kelleher <wkelleher@gogoair.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Matt Oliver <protogonoi@gmail.com>

This adds msvc optimisations as well as fixing an error in icl whereby it will generate invalid code otherwise.
Signed-off-by: Matt Oliver <protogonoi@gmail.com>

Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

A too small buffer will cause segfaults somewhere below
decompress_texture_thread.
Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

If it is too small av_image_copy_plane segfaults.
Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This prevents various values from getting an insanely huge exponent.
If someone knows a cleaner solution, thats welcome!

This is similar to commit 8978c743 for aacsbr.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This fixes a null pointer dereference from the recently introduced
AVStream->internal
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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>