fate: Use bitexact conversions in the dpxparser test

This fixes fate on e.g. ppc.

Signed-off-by: Martin Storsjö <martin@martin.st>
dashenc: Fix writing of timelines that don't start at t=0

When writing an explicit time, reset the cur_time variable to this
value as well. This avoids writing excessive time attributes for each
segment in the timeline, as long as the segments are continuous.

Signed-off-by: Martin Storsjö <martin@martin.st>
dashenc: Remove some stray double spaces

Signed-off-by: Martin Storsjö <martin@martin.st>
Merge commit '50036c30df83b609bc5a95276f1287f8b9b8bdd6'

* commit '50036c30df83b609bc5a95276f1287f8b9b8bdd6':
  fate: Use bitexact conversions in the dpxparser test

Conflicts:
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'b91a5757fcbf723da99b05b298a6f820271dbc2b'

* commit 'b91a5757fcbf723da99b05b298a6f820271dbc2b':
  dashenc: Fix writing of timelines that don't start at t=0

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '8d54bacb789c7d37ca3cf48d9ac13083ad0c1ba7'

* commit '8d54bacb789c7d37ca3cf48d9ac13083ad0c1ba7':
  dashenc: Remove some stray double spaces

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/vf_cropdetect: add RGB & RGBA support

These where already supported in the code but not listed in the supported
pixel formats.

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