summaryrefslogtreecommitdiffstats
path: root/video/hwdec.c
Commit message (Collapse)AuthorAgeFilesLines
* video: rewrite filtering glue codewm42018-01-301-6/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the old vf.c code. Replace it with a generic filtering framework, which can potentially handle more than just --vf. At least reimplementing --af with this code is planned. This changes some --vf semantics (including runtime behavior and the "vf" command). The most important ones are listed in interface-changes. vf_convert.c is renamed to f_swscale.c. It is now an internal filter that can not be inserted by the user manually. f_lavfi.c is a refactor of player/lavfi.c. The latter will be removed once --lavfi-complex is reimplemented on top of f_lavfi.c. (which is conceptually easy, but a big mess due to the data flow changes). The existing filters are all changed heavily. The data flow of the new filter framework is different. Especially EOF handling changes - EOF is now a "frame" rather than a state, and must be passed through exactly once. Another major thing is that all filters must support dynamic format changes. The filter reconfig() function goes away. (This sounds complex, but since all filters need to handle EOF draining anyway, they can use the same code, and it removes the mess with reconfig() having to predict the output format, which completely breaks with libavfilter anyway.) In addition, there is no automatic format negotiation or conversion. libavfilter's primitive and insufficient API simply doesn't allow us to do this in a reasonable way. Instead, filters can use f_autoconvert as sub-filter, and tell it which formats they support. This filter will in turn add actual conversion filters, such as f_swscale, to perform necessary format changes. vf_vapoursynth.c uses the same basic principle of operation as before, but with worryingly different details in data flow. Still appears to work. The hardware deint filters (vf_vavpp.c, vf_d3d11vpp.c, vf_vdpaupp.c) are heavily changed. Fortunately, they all used refqueue.c, which is for sharing the data flow logic (especially for managing future/past surfaces and such). It turns out it can be used to factor out most of the data flow. Some of these filters accepted software input. Instead of having ad-hoc upload code in each filter, surface upload is now delegated to f_autoconvert, which can use f_hwupload to perform this. Exporting VO capabilities is still a big mess (mp_stream_info stuff). The D3D11 code drops the redundant image formats, and all code uses the hw_subfmt (sw_format in FFmpeg) instead. Although that too seems to be a big mess for now. f_async_queue is unused.
* video: remove some more hwdec legacy stuffwm42017-12-021-24/+0
| | | | | | | | | Finally get rid of all the HWDEC_* things, and instead rely on the libavutil equivalents. vdpau still uses a shitty hack, but fuck the vdpau code. Remove all the now unneeded remains. The vdpau preemption thing was not unused anymore; if someone cares this could probably be restored.
* hwdec: don't require setting legacy hwdec fieldswm42017-12-021-1/+1
| | | | | | | | | | With the recent changes, mpv's internal mechanisms got synced to libavcodec's once more. Some things are still needed for filters (until the mechanism gets replaced), but there's no need to require other hwdec methods to use these fields. So remove them where they are unnecessary. Also fix some minor leaks in the dxva2 backends, and set the driver_name field in the Apple ones. Untested on Apple crap.
* vd_lavc: rewrite how --hwdec is handledwm42017-12-011-0/+22
| | | | | | | | | | | | | | | | Change it from explicit metadata about every hwaccel method to trying to get it from libavcodec. As shown by add_all_hwdec_methods(), this is a quite bumpy road, and a bit worse than expected. This will probably cause a bunch of regressions. In particular I didn't check all the strange decoder wrappers, which all cause some sort of special cases each. You're volunteering for beta testing by using this commit. One interesting thing is that we completely get rid of mp_hwdec_ctx in vd_lavc.c, and that HWDEC_* mostly goes away (some filters still use it, and the VO hwdec interops still have a lot of code to set it up, so it's not going away completely for now).
* video: refactor hw device creation for hwdec copy modeswm42017-12-011-4/+9
| | | | | | | | | | Lots of shit code for nothing. We probably could just use libavutil's code for all of this. But for now go with this, since it tends to prevent stupid terminal messages during probing (libavutil has no mechanism to selectively suppress errors specifically during probing). Ignores the "emulated" API flag (for avoiding vaapi/vdpau wrappers), but it doesn't matter that much for -copy anyway.
* vo_gpu: make it possible to load multiple hwdec interop driverswm42017-12-011-15/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the VO<->decoder interface capable of supporting multiple hwdec APIs at once. The main gain is that this simplifies autoprobing a lot. Before this change, it could happen that the VO loaded the "wrong" hwdec API, and the decoder was stuck with the choice (breaking hw decoding). With the change applied, the VO simply loads all available APIs, so autoprobing trickery is left entirely to the decoder. In the past, we were quite careful about not accidentally loading the wrong interop drivers. This was in part to make sure autoprobing works, but also because libva had this obnoxious bug of dumping garbage to stderr when using the API. libva was fixed, so this is not a problem anymore. The --opengl-hwdec-interop option is changed in various ways (again...), and renamed to --gpu-hwdec-interop. It does not have much use anymore, other than debugging. It's notable that the order in the hwdec interop array ra_hwdec_drivers[] still matters if multiple drivers support the same image formats, so the option can explicitly force one, if that should ever be necessary, or more likely, for debugging. One example are the ra_hwdec_d3d11egl and ra_hwdec_d3d11eglrgb drivers, which both support d3d11 input. vo_gpu now always loads the interop lazily by default, but when it does, it loads them all. vo_opengl_cb now always loads them when the GL context handle is initialized. I don't expect that this causes any problems. It's now possible to do things like changing between vdpau and nvdec decoding at runtime. This is also preparation for cleaning up vd_lavc.c hwdec autoprobing. It's another reason why hwdec_devices_request_all() does not take a hwdec type anymore.
* video: add mp_image_params.hw_flags and add an examplewm42017-10-161-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems this will be useful for Rokchip DRM hwcontext integration. DRM hwcontexts have additional internal structure which can be different depending on the decoder, and which is not part of the generic hwcontext API. Rockchip has 1 layer, which EGL interop happens to translate to a RGB texture, while VAAPI (mapped as DRM hwcontext) will use multiple layers. Both will use sw_format=nv12, and thus are indistinguishable on the mp_image_params level. But this is needed to initialize the EGL mapping and the vo_gpu video renderer correctly. We hope that the layer count is enough to tell whether EGL will translate the data to a RGB texture (vs. 2 texture resembling raw nv12 data). For that we introduce MP_IMAGE_HW_FLAG_OPAQUE. This commit adds the flag, infrastructure to set it, and an "example" for D3D11. The D3D11 addition is quite useless at this point. But later we want to get rid of d3d11_update_image_attribs() anyway, while we still need a way to force d3d11vpp filter insertion, so maybe it has some justification (who knows). In any case it makes testing this easier. Obviously it also adds some basic support for triggering the opaque format for decoding, which will use a driver-specific format, but which is not supported in shaders. The opaque flag is not used to determine whether d3d11vpp needs to be inserted, though.
* vd_lavc, vaapi: move hw device creation to generic codewm42017-02-201-2/+0
| | | | | | | | hw_vaapi.c didn't do much interesting anymore. Other than the function to create a device for decoding with vaapi-copy, everything can be done by generic code. Other libavcodec hwaccels are planned to provide the same API as vaapi. It will be possible to drop the other hw_ files in the future. They will use this generic code instead.
* video: refactor how VO exports hwdec device handleswm42016-05-091-0/+90
The main change is with video/hwdec.h. mp_hwdec_info is made opaque (and renamed to mp_hwdec_devices). Its accessors are mainly thread-safe (or documented where not), which makes the whole thing saner and cleaner. In particular, thread-safety rules become less subtle and more obvious. The new internal API makes it easier to support multiple OpenGL interop backends. (Although this is not done yet, and it's not clear whether it ever will.) This also removes all the API-specific fields from mp_hwdec_ctx and replaces them with a "ctx" field. For d3d in particular, we drop the mp_d3d_ctx struct completely, and pass the interfaces directly. Remove the emulation checks from vaapi.c and vdpau.c; they are pointless, and the checks that matter are done on the VO layer. The d3d hardware decoders might slightly change behavior: dxva2-copy will not use the VO device anymore if the VO supports proper interop. This pretty much assumes that any in such cases the VO will not use any form of exclusive mode, which makes using the VO device in copy mode unnecessary. This is a big refactor. Some things may be untested and could be broken.