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video: add metadata handling for spherical video

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This adds handling of spherical video metadata: retrieving it from
demux_lavf and demux_mkv, passing it through filters, and adjusting it
with vf_format. This does not include support for rendering this type of
video.

We don't expect we need/want to support the other projection types like
cube maps, so we don't include that for now. They can be added later as
needed.

Also raise the maximum sizes of stringified image params, since they
can get really long.
This commit is contained in:
wm4
2017-08-21 14:56:07 +02:00
parent 82d9419f62
commit 028faacff5
11 changed files with 152 additions and 4 deletions
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3
demux/stheader.h
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@@ -22,7 +22,7 @@
#include "common/common.h"
#include "audio/chmap.h"
#include "video/csputils.h"
#include "video/mp_image.h"
struct MPOpts;
struct demuxer;
@@ -93,6 +93,7 @@ struct mp_codec_params {
int rotate; // intended display rotation, in degrees, [0, 359]
int stereo_mode; // mp_stereo3d_mode (0 if none/unknown)
struct mp_colorspace color; // colorspace info where available
struct mp_spherical_params spherical;
// STREAM_VIDEO + STREAM_AUDIO
int bits_per_coded_sample;