diff options
Diffstat (limited to 'pica-client/videodevice.h')
| -rw-r--r-- | pica-client/videodevice.h | 48 |
1 files changed, 34 insertions, 14 deletions
diff --git a/pica-client/videodevice.h b/pica-client/videodevice.h index 5c4585c..3119652 100644 --- a/pica-client/videodevice.h +++ b/pica-client/videodevice.h @@ -18,6 +18,7 @@ #define VIDEODEVICE_H #include "mediadevice.h" +#include "callsettings.h" #include "vaapi.h" #include <QObject> #include <QString> @@ -173,22 +174,31 @@ public: // looking for one to forward, so choosing a codec the camera can produce // itself gets that one rather than merely a compatible one. // - // useVaapi asks for the frames to be encoded on the GPU, through whichever - // accelerator the build has - VAAPI where there is libva, Direct3D 12 on - // Windows. It is a request, not a guarantee: with no such support built - // in, without usable hardware, or if the hardware encoder will not open, - // capture falls back to encoding in software. + // acceleration is a set of VideoAcceleration flags naming the hardware + // encoders that may be tried, in this order when several are set: VAAPI, + // Direct3D 12, Media Foundation. Each is a request, not a guarantee: one not + // built in, without usable hardware, or that will not open is passed over + // for the next, and with none left capture encodes in software. Flags for + // decoding-only paths are ignored. Q_INVOKABLE void configureCapture(QString deviceName, int width, int height, int frameRate, bool preferCompressed, QString codec, int bitrate, - bool useVaapi); - - // useVaapi decodes on the GPU. useVaapiRender additionally keeps the - // decoded frames there and emits them through hwFrameReady() instead of - // frameReady(), for a renderer that can draw a VA surface directly; it - // implies GPU decoding, since there is no surface to draw otherwise. Both - // fall back to software the same way capture does. + int acceleration); + + // acceleration is the decoding counterpart of configureCapture()'s: the + // VideoAcceleration flags for the GPU decoders that may be tried, in this + // order: VAAPI, Direct3D 11, Direct3D 12, DXVA2. The first whose device + // comes up is the one used - whether the GPU can decode the particular + // stream is only found out from the stream itself, and a GPU that cannot + // leaves decoding in software rather than moving on to the next API. + // + // useVaapiRender additionally keeps the decoded frames on the GPU and emits + // them through hwFrameReady() instead of frameReady(), for a renderer that + // can draw a VA surface directly; it implies VAAPI decoding, since there is + // no surface to draw otherwise. The Windows decoders always bring their + // frames back to system memory - nothing in the client can draw a Direct3D + // surface yet. Q_INVOKABLE void configurePlayback(QString codec, int width, int height, - bool useVaapi, bool useVaapiRender); + int acceleration, bool useVaapiRender); // Push one complete encoded frame (already reassembled from 0x77 // fragments by the caller) into the decode queue. Safe to call from any @@ -312,6 +322,14 @@ public: // the same way it may refuse any other request. static QList<VideoCaptureFormat> CaptureFormats(const QString &device); + // Whether the FFmpeg the client runs with was built with what one + // acceleration flag needs in the given direction: a hardware encoder for at + // least one of the call codecs, or the hardware context and a hwaccel for + // at least one of their decoders. Says nothing about whether this machine's + // GPU can use it - only whether there is anything to try at all, which is + // what the settings dialog needs to know before offering it. + static bool AccelerationBuiltIn(VideoAcceleration acceleration, bool encoding); + private: QString m_deviceName; QString m_codec; @@ -320,7 +338,9 @@ private: int m_frameRate; int m_bitrate; bool m_preferCompressed; - bool m_useVaapi; + // VideoAcceleration flags; which of them apply depends on the direction + // this instance was configured for. + int m_acceleration; bool m_useVaapiRender; QAtomicInt m_abort; |