| Commit message (Collapse) | Author | Age | Files | Lines |
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Note that this does not pass through QP information (qscale field).
The only filter for which this matters is vf_pp, and we have this
natively.
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Now lavc_dr1.c is not used anymore if libavcodec is recent enough.
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Some minor refactoring and moving code around.
There should be no functional changes.
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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.
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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)
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Actually stolen from draw_bmp.c.
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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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These functions weren't specific to video filters and were misplaced
in vf.c. Move them to mp_image.c.
Fix the big endian test in vf_mpi_clear/mp_image_clear, which has been
messed up in 74df1d.
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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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Replace the internal pixel format stuff with code that queries the
libavutil list of pixel format descriptors.
Trying to map IMGFMT_IS_RGB() etc. turned out extremely hacky.
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Remove mp_image.width/height. The w/h members are the ones to use.
width/height were used internally by vf_get_image(), and sometimes for
other purposes.
Remove some image flags, most of which are now useless or completely
unused. This includes VFCAP_ACCEPT_STRIDE: the vf_expand insertion in
vf.c does nothing.
Remove some other unused mp_image fields.
Some rather messy changes in vo_opengl[_old] to get rid of legacy
mp_image flags and fields. This is left from when vo_gl supported DR.
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Change the entire filter API to use reference counted images instead
of vf_get_image().
Remove filter "direct rendering". This was useful for vf_expand and (in
rare cases) vf_sub: DR allowed these filters to pass a cropped image to
the filters before them. Then, on filtering, the image was "uncropped",
so that black bars could be added around the image without copying. This
means that in some cases, vf_expand will be slower (-vf gradfun,expand
for example).
Note that another form of DR used for in-place filters has been replaced
by simpler logic. Instead of trying to do DR, filters can check if the
image is writeable (with mp_image_is_writeable()), and do true in-place
if that's the case. This affects filters like vf_gradfun and vf_sub.
Everything has to support strides now. If something doesn't, making a
copy of the image data is required.
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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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Slices allowed filtering or drawing video in horizontal bands or
blocks. This allowed working on the video in smaller units. In theory,
this could bring a performance win by lowering cache pressure, as you
didn't have to keep the whole video frame in cache while filtering,
only the slice.
In practice, the slice code path was barely used for the following
reasons:
- Multithreaded decoding with ffmpeg didn't use slices. The ffmpeg
slice callback was disabled, because it can be called from another
thread, and the mplayer video chain is not thread-safe.
- There was nothing that would turn "full" images into appropriate
slices, so slices were rarely used.
- Most filters didn't actually support slices.
On the other hand, supporting slices lead to code duplication and more
complex code in general. I made some experiments and didn't find any
actual measurable performance improvements when using slices. Even
ffmpeg removed slices based filtering from libavfilter in favor of
simpler code.
The most broken thing about the slices code path is that slices can't
be queued, like it is done for images in vo.c.
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By "design", mplayer normally allocates aligned images only inside the
filter chain, via the vf_get_image() function. This function pads the
width of the requested image if a stride is allowed, sets that new width
before calling mp_image_alloc_planes().
However, newer code wants aligned images as well (basically to satisfy
libswscale). This affects all uses of alloc_mpi(). To get aligned
strides, simply change alloc_mpi() to request an aligned width.
Remove the old hack in mp_image_alloc_planes(), which special cases some
image formats to be allocated with aligned strides.
This is a temporary hack until mp_image_alloc_planes() is revised.
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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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Tis drops the silly lib prefixes, and attempts to organize the tree in
a more logical way. Make the top-level directory less cluttered as
well.
Renames the following directories:
libaf -> audio/filter
libao2 -> audio/out
libvo -> video/out
libmpdemux -> demux
Split libmpcodecs:
vf* -> video/filter
vd*, dec_video.* -> video/decode
mp_image*, img_format*, ... -> video/
ad*, dec_audio.* -> audio/decode
libaf/format.* is moved to audio/ - this is similar to how mp_image.*
is located in video/.
Move most top-level .c/.h files to core. (talloc.c/.h is left on top-
level, because it's external.) Park some of the more annoying files
in compat/. Some of these are relicts from the time mplayer used
ffmpeg internals.
sub/ is not split, because it's too much of a mess (subtitle code is
mixed with OSD display and rendering).
Maybe the organization of core is not ideal: it mixes playback core
(like mplayer.c) and utility helpers (like bstr.c/h). Should the need
arise, the playback core will be moved somewhere else, while core
contains all helper and common code.
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