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This options is only used by huffyuv, ffvhuv, jpegls, mjpeg,
mpegvideoenc, png, utvideo.
It is a very codec-specific options, so deprecate the global variant.
Set proper limits to the maximum allowed values, and update utvideoenc
tests to use the new option name.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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This option is only used by ffv1 and ffvhuff.
It is a very codec-specific option, so deprecate the global variant.
Improve documentation a little.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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Convert doxygen to multiline and express bitfields more simply.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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The rationale is that coded_frame was only used to communicate key_frame,
pict_type and quality to the caller, as well as a few other random fields,
in a non predictable, let alone consistent way.
There was agreement that there was no use case for coded_frame, as it is
a full-sized AVFrame container used for just 2-3 int-sized properties,
which shouldn't even belong into the AVCodecContext in the first place.
The appropriate AVPacket flag can be used instead of key_frame, while
quality is exported with the new AVPacketSideData quality factor.
There is no replacement for the other fields as they were unreliable,
mishandled or just not used at all.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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Allocating coded_frame is what most encoders do anyway, so it makes
sense to always allocate and free it in a single place. Moreover a lot
of encoders freed the frame with av_freep() instead of the correct API
av_frame_free().
This bring uniformity to encoder behaviour and prevents applications
from erroneusly accessing this field when not allocated. Additionally
this helps isolating encoders that export information with coded_frame,
and heavily simplifies its deprecation.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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Also shorten HuffYUV context member names to avoid clutter.
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Almost all of the code is shared so there is little point in
enabling one decoder/encoder without the other.
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Bug-Id: 452
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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