| Commit message (Collapse) | Author | Age | Files | Lines |
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Until now, failure to allocate image data resulted in a crash (i.e.
abort() was called). This was intentional, because it's pretty silly to
degrade playback, and in almost all situations, the OOM will probably
kill you anyway. (And then there's the standard Linux overcommit
behavior, which also will kill you at some point.)
But I changed my opinion, so here we go. This change does not affect
_all_ memory allocations, just image data. Now in most failure cases,
the output will just be skipped. For video filters, this coincidentally
means that failure is treated as EOF (because the playback core assumes
EOF if nothing comes out of the video filter chain). In other
situations, output might be in some way degraded, like skipping frames,
not scaling OSD, and such.
Functions whose return values changed semantics:
mp_image_alloc
mp_image_new_copy
mp_image_new_ref
mp_image_make_writeable
mp_image_setrefp
mp_image_to_av_frame_and_unref
mp_image_from_av_frame
mp_image_new_external_ref
mp_image_new_custom_ref
mp_image_pool_make_writeable
mp_image_pool_get
mp_image_pool_new_copy
mp_vdpau_mixed_frame_create
vf_alloc_out_image
vf_make_out_image_writeable
glGetWindowScreenshot
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Minor cleanup, so that we can stuff more information into
mp_image_params later.
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This was way too misleading. osd.c merely calls the subtitle renderers,
instead of actually dealing with subtitles.
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Followup commit. Fixes all the files references.
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Add libswscale includes where they are actually needed instead.
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mp_get_yuv2rgb_coeffs() will crash if the colorspace is explicitly set
to RGB.
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Seems to make it about up to 20% faster in some cases.
Slightly slower in some others.
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mp_sub_bitmaps_bb is just sub_bitmaps_bb renamed/moved.
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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.
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Doesn't seem to help too much...
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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.
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Actually stolen from draw_bmp.c.
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In order to support OSD redrawing for vo_xv and vo_x11, draw_bmp.c
included an awkward "backup" mechanism to copy and restore image
regions that have been changed by OSD/subtitles.
Replace this by a much simpler mechanism: keep a reference to the
original image, and use that to restore the Xv/X framebuffers.
In the worst case, this may increase cache pressure and memory usage,
even if no OSD or subtitles are rendered. In practice, it seems to be
always faster.
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Even though #ifdef ACCURATE is removed, the result should be about the
same. The fallback is only used by packed YUV formats (YUYV, NV12), and
doing 16 bit for them instead of 8 bit is not useful.
A side effect is that Y8 (gray) is not converted drawing subs, and for
alpha formats, the alpha plane is not removed. This means the number of
planes after upsampling can be 1-4 (1: gray, 2: gray+alpha, 3: planar,
4: planar+alpha). The code has to be adjusted accordingly to work on the
color planes only. Also remove the workaround for the chroma shift 31
hack.
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mp_image_alloc() also changes argument order compared to alloc_mpi().
The format now comes first, then width/height.
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mp_image_alloc_planes() allocated images with minimal stride, even if
the resulting stride was unaligned. It was the responsibility of
vf_get_image() to set an image's width to something larger than
required to get an aligned stride, and then crop it. Always allocate
with aligned strides instead.
Get rid of IMGFMT_IF09 special handling. This format is not used
anymore. (IF09 has 4x4 chroma sub-sampling, and that is what it was
mainly used for - this is still supported.) Get rid of swapped chroma
plane allocation. This is not used anywhere, and VOs like vo_xv,
vo_direct3d and vo_sdl do their own swapping.
Always round chroma width/height up instead of down. Consider 4:2:0 and
an uneven image size. For luma, the size was left uneven, and the chroma
size was rounded down. This doesn't make sense, because chroma would be
missing for the bottom/right border.
Remove mp_image_new_empty() and mp_image_alloc_planes(), they were not
used anymore, except in draw_bmp.c. (It's still allowed to setup
mp_images manually, you just can't allocate image data with them
anymore - this is also done in draw_bmp.c.)
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Setting the size of a mp_image must be done with mp_image_set_size()
now. Do this to guarantee that the redundant fields (like chroma_width)
are updated consistently. Replacing the redundant fields by function
calls would probably be better, but there are too many uses of them,
and is a bit less convenient.
Most code actually called mp_image_setfmt(), which did this as well.
This commit just makes things a bit more explicit.
Warning: the video filter chain still sets up mp_images manually,
and vf_get_image() is not updated.
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Based on a patch by qyot27. Add the missing parts in mp_get_chroma_shift(),
which allow allocation of such images, and which make vo_opengl
automatically accept the new formats. Change the IMGFMT_IS_YUVP16_LE/BE
macros to properly report IMGFMT_444P14 as supported: this pixel format
has the highest numerical bit width identifier (0x55), which is not
covered by the mask ~0xfc. Remove 1 bit from the mask (makes it 0xf8) so
that IMGFMT_IS_YUVP16(IMGFMT_444P14) is 1. This is slightly risky, as
the organization of the image format IDs (actually FourCCs + mplayer
internal IDs) is messy at best, but it should be ok.
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As pointed out in commit ed01df, the quality loss due to frequent
conversion between RGB and YUV is too much when drawing OSD and
subtitles.
Fix this by staying in the same colorspace when drawing subtitles.
Render directly to RGB, without converting to YUV first.
The bad thing about packed RGB is that there are many pixel formats,
which would all require special code for blending. It's also completely
incompatible to planar YUV. Use planar RGB instead, which allows us to
reuse all code originally written for planar YUV. The only thing that
needs to be changed is the color conversion in the libass case. (In
exchange for simpler code, the image has to be copied, but this is
still much better than converting to YUV.)
Unfortunately, libswscale doesn't support planar RGB output. Add a hack
to sws_utils.c to handle conversion to planar RGB. In the common case,
when converting 32 bit per pixel RGB, calling swscale can be avoided
entirely.
The change in mp_image.c is needed to allocate GBRP images correctly.
(The issue with vo_x11 could be easily solved by always backing up the
same bounding box as the bitmap drawing RGB<->YUV conversion does, but
this commit is probably the better fix.)
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In order to improve performance, vo_xv didn't create a backup of the
video frame before drawing OSD and subtitles during normal playback. It
required the frontend to do frame stepping if it wanted to redraw the
OSD, but no backup of the video frame was available. (Consider the
following use case: enable the OSD permanently with --osd-level=3, then
pause during playback and do something that shows an OSD message. The
player will advance the video by one frame at the time the new OSD
message is first drawn.)
This also meant that taking a screenshot during playback with vo_xv
would include OSD and subtitles in the resulting image.
Fix this by always creating a backup before drawing OSD or subtitles.
In order to avoid having to create a full copy of the whole image frame,
introduce a complex scheme that tries to backup only the changed
regions.
It's unclear whether the additional complexity in draw_bmp.c for
backing up only the changed areas of the frame is worth it. Possibly
a simpler implementation would suffice, such as tracking only Y ranges
of changed image data, or even just copying the full frame.
vo_xv's get_screenshot() now always creates a copy in order not to
modify the currently displayed frame.
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Finish renaming directories and moving files. Adjust all include
statements to make the previous commit compile.
The two commits are separate, because git is bad at tracking renames
and content changes at the same time.
Also take this as an opportunity to remove the separation between
"common" and "mplayer" sources in the Makefile. ("common" used to be
shared between mplayer and mencoder.)
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ffmpeg ticket #1852 is fixed with 425c30dda. This didn't actually happen
in practice.
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Remove the explicit struct mp_csp_details parameters from all related
functions, and use mp_image.colorspace/levels instead.
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Mostly pedantic bikeshedding issues.
Move some code around, so that the sub_bitmap_to_mp_images() function
can be split into two parts. This is better than having a big function
with many input and outputs, of which only half are used in each code
path.
Also, try to make code simpler by using a mp_rect type.
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This was sometimes slower, sometimes slightly faster. Remove it.
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Most of these cased working when the OSD was switched to libass, or
didn't do anything even before that.
Also don't recursively include subreader.h in sub.h.
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mp_get_chroma_shift() modifies its argument even if it fails, so we have
to restore that.
mp_image didn't set chroma shifts for yuy2.
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If that happens, we silently fail.
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This caches scaled RGBA sub-bitmaps.
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libswscale tends to overwrite the area between (w,y)-(0,y+1). It tries
to process multiple pixels at once, and if the memory past the last x
pixel is inside a SIMD operation, but still below the image stride, it
overwrites that data with black.
This happens with vo_x11 and 32 bit RGBA formats. The bug is visible as
black bar right of the subtitle bounding box. Fix by giving libswscale
more alignment. Then the "outside" pixels are inside, and are processed
normally instead of overwritten with black.
NOTE: we do not increase the alignment constant, because this is a
separate issue from pointer alignment. libavutil's av_malloc() wouldn't
actually satisfy the increased alignment either.
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Merged by wm4 from commits 93978f17b76d..13211ef5fc20. Changed copyright
header in draw_bmp.c to "mpv", and removed the one in draw_bmp.h.
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