Options that take pixel format names now also accept ffmpeg names.
mpv internal names are preferred. We leave this undocumented
intentionally, and may be removed once libswscale stops printing
ffmpeg pixel format names to the terminal (or if we stop passing the
SWS_PRINT_INFO flag to it, which makes it print these).
(We insist on keeping the mpv specific names instead of dropping them
in favor of ffmpeg's name due to NIH, and also because ffmpeg always
appends the endian suffixes "le" and "be".)
The video filter chain traditionally used FourCCs for pixel formats.
This was recently changed, but some parts of the manpage were not
updated properly. Now there are two rypes of options: some which take
a FourCC (as used with raw video formats), and some which take a
symbolic format identifier (as used in the video filter chain).
I realize that it's harder to specify FourCC for RGB formats now (TV
stuff may need RGB). They use non-printable characters as part of the
FourCC, and have to be specified as hexadecimal numbers (instead of
a symbolic identifier). Because I can't be bothered to find out what
these numbers are for the respective formats, just remove the old
pseudo-FourCCs from the documentation.
<ctype.h> is needed at least for isalnum(). Most time this worked,
because some ffmpeg or Libav versions recursively include this header
from libavutil/common.h. Fix it so it always works.
This printed per-frame statistics into a file, like bitrate or frame
type. Not very useful and accesses obscure AVCodecContext fields
(danger of deprecation/breakage), so get rid of it.
This was a "broken misfeature" according to Libav developers. It wasn't
implemented for modern codecs (like h264), and has been removed from
Libav a while ago (the AVCodecContext field has been marked as
deprecated and its value is ignored). FFmpeg still supports it, but
isn't much useful due to aforementioned reasons.
Remove the code to enable it.
Image areas with subtitles are upsampled to 4:4:4 in order to render
the subtitles (makes blending easier). Try not to copy the Y plane on
upsampling. The libswscale API requires this, but this commit works it
around by scaling the chroma planes separately as AV_PIX_FMT_GRAY8. The
Y plane is not touched at all. This is done for 420p8 only, which is the
most commonly needed case. For other formats, the old way is used.
Seems to make ASS rendering faster about 15% in the setup I tested.
Allocate it even if it's needed. The actually done work is almost the
same, except that the code is a bit simpler. May need more memory at
once for RGB subs that use more than one part, which is rare.
This was an awkward hack that attempted to avoid the use of 16 bit
textures, while still allowing rendering 10-16 bit YUV formats. The
idea was that even if the hardware doesn't support 16 bit textures,
an A8L8 textures could be used to convert 10 bit (etc.) to 8 bit in
the shader, instead of doing this on the CPU.
This was an experiment, disabled by default, and was (probably) rarely
used. I've never heard of this being used successfully. Remove it.
This is more correct. Not all frame specific fields are in AVFrame,
such as colorspace and color_range, and these are still queried
through the decoder context.
This field contained the "average" bit depth per pixel. It serves no
purpose anymore. Remove it.
Only vo_opengl_old still uses this in order to allocate a buffer that is
shared between all planes.
This used to mean that there is more than one plane. This is not very
useful: IMGFMT_Y8 was not considered planar, but it's just a Y plane,
and could be treated the same as actual planar formats. On the other
hand, IMGFMT_NV12 is partially packed, and usually requires special
handling, but was considered planar.
Change its meaning. Now the flag is set if the format has a separate
plane for each component. IMGFMT_Y8 is now planar, IMGFMT_NV12 is not.
As an odd special case, IMGFMT_MONO (1 bit per pixel) is like a planar
RGB format with a single plane.
In theory, vf_sub could take any format supported by swscale. But to be
sure that it's reasonably fast, only 420P was allowed. However, other
similar 8 bit planar formats will be just as fast and there's no reason
to exclude them. Even for completely different formats there doesn't
seem to be any significant advantage to force vf_sub to convert to a
simpler/more common format.
This did random things with some image formats, including 10 bit
formats. Fixes the mp_image_clear() function too.
This still has some caveats:
- doesn't clear alpha to opaque (too hard with packed RGB, and is rarely
needed)
- sets luma to 0 for mpeg-range YUV, instead of the lowest possible
value (e.g. 16 for 8 bit)
Needed because mplayer* basically tracks DAR, which makes it harder for
filters which want to keep the SAR.
The contents of this function are duplicated in a few filters, and will
be used instead of custom code as the filters are updated later.
This makes it behave like vo_lavc.
Unfortunately, the code for setting up the OSD dimensions (mp_osd_res)
is copied from vo_lavc, but it doesn't look like something that should
be factored out.
redraw_frame() copied the image into the currently visible buffer. This
resulted in flicker when doing heavy OSD redrawing (like changing the
subtitle size to something absurdly large).
Use the same logic as draw_image instead.
wm4
Stefano Pigozzi
Rudolf Polzer