The code for copying a videotoolbox surface to mp_image was duplicated
(with some minor differences - I picked the hw_videotoolbox.c version,
because it was "better"). mp_imgfmt_from_cvpixelformat() is somewhat
duplicated with the vt_formats[] table, but this will be fixed in a
later commit, and moving the function to shared code is preparation.
This should allow us to create the device in situations when
Direct3DCreate9 normally fails, for example if no user is logged in.
While the later use-case is not very interesting, I hope it to work in
some other situations as well, for example while certain drivers are in
exclusive full screen mode.
This is available since Windows 7, so I'm removing the old call
completely.
The lock was disabled recently. This commit gets rid of the dummied out
calls. The main reason for removing it is that there is no apparent need
for it anymore, and the new FFmpeg vaapi code does not use or provide
such a lock (there are some places which we cannot control and which do
vaapi API calls, like frame destructors).
Apparently this is the maximum that can be preserved. There is also
something about the decoder being able only to use 3 frames at a time,
and I'm assuming these are part of the 8 frames.
This can be useful in other contexts.
Note that we end up setting AVCodecContext.width/height instead of
coded_width/coded_height now. AVCodecParameters can't set coded_width,
but this is probably more correct anyway.
The FFmpeg versions we support all have the APIs we were checking for.
Only Libav missed them. Simplify this by explicitly checking for FFmpeg
in the code, instead of trying to detect the presence of the API.
Tried to decode a High 4:2:2 file, since libavcodec code seemed to
indicate that it's supported. Well, it decodes to garbage.
I couldn't find out why ffmpeg.c actually appears to reject this
correctly. The API seems to be fine with, just that the output is
garbage.
Add a hack for now.
Successful decoding of a frame resets ctx->hwdec_fail_count to 0 - which
us ok, but prevents fallback if it fails if --vd-lavc-software-fallback
is set to something higher than 1.
Just fail it immediately, since failing here always indicates some real
error (or OOM), not e.g. a video parsing error or such, which we try to
tolerate via the error counter.
Use the libavutil vdpau frame allocation code instead of our own "old"
code. This also uses its code for copying a video surface to normal
memory (used by vdpau-copy).
Since vdpau doesn't really have an internal pixel format, 4:2:0 can be
accessed as both nv12 and yuv420p - and libavutil prefers to report
yuv420p. The OpenGL interop has to be adjusted accordingly.
Preemption is a potential problem, but it doesn't break it more than it
already is.
This requires a bug fix to FFmpeg's vdpau code, or vdpau-copy (as well
as taking screenshots) will fail. Libav has fixed this bug ages ago.
In a way it can be reused. For now, sw_format and initial_pool_size
determination are still vaapi-specific. I'm hoping this can be eventally
moved to libavcodec in some way. Checking the supported_formats array is
not really vaapi-specific, and could be moved to the generic code path
too, but for now it would make things more complex.
hw_cuda.c can't use this, but hw_vdpau.c will in the following commit.
If hardware decoding is enabled (via --hwdec anything), the player was
printing an informational message that software decdoing is used.
Basically, this confuses users, because they think there is a problem or
such. Just disable the message, it's semi-useless anyway.
This was suggested on IRC, after yet another user was asking why this
message was shown (with a follow up discussion which CPUs can decode
what kind of video codecs).
There are going to be users who have a Mesa installation which do not
support 10 bit, but a GPU which can decode to 10 bit. So it's probably
better not to hardcode whether it is supported.
Introduce a more general way to signal supported formats from renderer
to decoder. Obviously this is imperfect, because it still isn't part of
proper format negotation (for example, what if there's a vavpp filter,
which accepts anything). Still slightly better than before.
I don't know any way to probe for vaapi dmabuf/EGL dmabuf support
properly (in particular testing specific formats, not just general
availability). So we stay with the current approach and try to create
and map dummy surfaces on init to probe for support. Overdo it and check
all formats that AVHWFramesConstraints reports, instead of only NV12 and
P010 surfaces.
Since we can support unknown formats now, add explicitly checks to the
EGL/dmabuf mapper code to reject unsupported formats. I also noticed
that libavutil signals support for RGB0/BGR0, but couldn't get it to
work. Remove the DRM formats that are unused/didn't work the way I tried
to use them.
With this, 10 bit decoding + rendering should work, provided you have
a capable CPU and a patched Mesa. The required Mesa patch adds support
for the R16 and GR32 formats. It was sent by a Kodi developer to the
Mesa developer mailing list and was not accepted yet.
For convenience. Since we still have code that works even if creating a
AVHWDeviceContext fails, failure is ignored. (Although currently, it
succeeds creation even with the stale/abandoned vdpau wrapper driver.)
Rendering support in Mesa probably doesn't exist yet. In theory it might
be possible to use VPP to convert the surfaces to 8 bit (like we do it
with dxva2/d3d11va as ANGLE doesn't support rendering 10 bit surface
either), but that too would require explicit mechanisms. This can't be
implemented either until I have a GPU with actual support.
Other hwdecs will also be able to use this (as soon as they are switched
to use AVHWFramesContext).
As an additional feature, failing to copy back the frame counts as
hardware decoding failure and can trigger fallback. This can be done
easily now, because it needs no way to communicate this from the hwaccel
glue code to the common code.
The old code is still required for the old decode API, until we either
drop or rewrite it. vo_vaapi.c's OSD code (fuck...) also uses these
surface functions to a higher degree.
Mostly affects conversion of the colorimetric parameters.
Not changing AV_FRAME_DATA_MASTERING_DISPLAY_METADATA handling - that's
too messy, as decoders typically output it for keyframes only, and would
require weird caching that can't even be done on the level of the frame
rewrapping functions.
This fixes direct rendering with hwdec_vaegl.c.
The code duplication between update_image_params() and
mp_image_copy_fields_from_av_frame() is quite annoying,
bit will have to be resolved in another commit.
AVHWDeviceContext.user_opaque is reserved to libavutil under certain
circumstances, while AVHWFramesContext.user_opaque is truly free for use
by us. It's slightly simpler too.
The old API is deprecated, and libavcodec prints a warning at runtime.
The new API is a bit nicer and does many things for you, such as
managing the underlying hwaccel decoder. libavutil also provides code
for managing surfaces (we use their surface pool).
The new code does not contain any code from the original MPlayer VAAPI
patch (that was used as base for some of the vaapi code in mpv). Thus
the new code is LGPL.
The new API actually does not add any visible symbols, so the only way
to detect it is a version check. Of course, the versions overlap
between FFmpeg and Libav, which requires additional care. The new
API did not get merged into FFmpeg yet, so there's no check for
FFmpeg.
This is simpler and more robust, especially for the hwdec fallback case.
The most annoying issue is that C doesn't support multiple return values
(or sum types), so the decode call gets all awkward.
The hwdec fallback case does not need to try to produce some output
after the fallback anymore. Instead, it can use the normal "replay"
code path.
We invert the "eof" bool that vd_lavc.c used internally. The
receive_frame decoder API returns the inverse of EOF, because
returning "true" from the decode function if EOF was reached
feels awkward.
Usually they happen at the same time, but conflating them is still a bit
unclean and could possibly cause problems in the future. It's also
really unnecessary.
The ffmpeg cuda wrappers need more than 1 packet for determining whether
hw decoding will work. So do something complicated and keep up to 32
packets when trying to do hw decoding, and replay the packets on the
software decoder if it doesn't work.
This code was written in a delirious state, testing for regressions and
determining whether this is worth the trouble will follow later. All mpv
git users are alpha testers as of this moment.
Fixes#3914.
Cover art handling is a disgusting hack that causes a mess in all
components. And this will stay this way. This is the Xth time I've
changed cover art handling, and that will probably also continue.
But change the code such that cover art is injected into the demux
packet stream, instead of having an explicit special case it in the
decoder glue code. (This is somewhat more similar to the cover art hack
in libavformat.)
To avoid that the over art picture is decoded again on each seek, we
need some additional "caching" in player/video.c. Decoding it after each
seek would work as well, but since cover art pictures can be pretty
huge, it's probably ok to invest some lines of code into caching it.
One weird thing is that the cover art packet will remain queued after
seeks, but that is probably not an issue.
In exchange, we can drop the dec_video.c code, which is pretty
convenient for one of the following commits. This code duplicates a
bunch of lower-level decode calls and does icky messing with this weird
state stuff, so I'm glad it goes away.
Conceptually cleaner, although the API claims this is equivalent.
Originally, AVCodecContext fields were used, because not all supported
libavcodec/libavutil versions had the AVFrame fields.
This is not done for chroma_sample_location - it has no AVFrame field.
Helps with gif, probably does unwanted things with other formats.
This doesn't handle --end quite correctly, but this could be added
later.
Fixes#3924.
Needs explicit logic. Fixes a pretty bad regression which prefers
vdpau-copy over native vaapi with direct rendering (with --hwdec=auto)
if libvdpau-va-gl1 is present. The reason is that vdpau-copy is above
vaapi, simply because all vdpau hwdecs are grouped and happened to be
listed before vaapi.
Although this is not that bad for copy-mode (unlike the case described
above), it's still a good idea to use our native vaapi code instead.
The latest 375.xx nvidia drivers add support for P016 output
surfaces. In combination with an ffmpeg change to return those
surfaces, we can display them.
The bulk of the work is related to knowing which format you're
dealing with at the right time. Once you know, it's straight forward.
At least with Nvidia drivers, some thread tries to access D3D11 objects
after ANGLE unloads d3d11.dll. Fix this by holding a reference to
d3d11.dll ourselves.
Might fix the crash in #3348. (I wish I knew why though.)
wm4