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Diffstat (limited to 'media/libstagefright/wifi-display/VideoFormats.h')
-rw-r--r-- | media/libstagefright/wifi-display/VideoFormats.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/media/libstagefright/wifi-display/VideoFormats.h b/media/libstagefright/wifi-display/VideoFormats.h new file mode 100644 index 0000000..fd38fd1 --- /dev/null +++ b/media/libstagefright/wifi-display/VideoFormats.h @@ -0,0 +1,125 @@ +/* + * Copyright 2013, The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef VIDEO_FORMATS_H_ + +#define VIDEO_FORMATS_H_ + +#include <media/stagefright/foundation/ABase.h> + +#include <stdint.h> + +namespace android { + +struct AString; + +// This class encapsulates that video resolution capabilities of a wfd source +// or sink as outlined in the wfd specs. Currently three sets of resolutions +// are specified, each of which supports up to 32 resolutions. +// In addition to its capabilities each sink/source also publishes its +// "native" resolution, presumably one that is preferred among all others +// because it wouldn't require any scaling and directly corresponds to the +// display capabilities/pixels. +struct VideoFormats { + VideoFormats(); + + struct config_t { + size_t width, height, framesPerSecond; + bool interlaced; + unsigned char profile, level; + }; + + enum ProfileType { + PROFILE_CBP = 0, + PROFILE_CHP, + kNumProfileTypes, + }; + + enum LevelType { + LEVEL_31 = 0, + LEVEL_32, + LEVEL_40, + LEVEL_41, + LEVEL_42, + kNumLevelTypes, + }; + + enum ResolutionType { + RESOLUTION_CEA, + RESOLUTION_VESA, + RESOLUTION_HH, + kNumResolutionTypes, + }; + + void setNativeResolution(ResolutionType type, size_t index); + void getNativeResolution(ResolutionType *type, size_t *index) const; + + void disableAll(); + void enableAll(); + void enableResolutionUpto( + ResolutionType type, size_t index, + ProfileType profile, LevelType level); + + void setResolutionEnabled( + ResolutionType type, size_t index, bool enabled = true); + + bool isResolutionEnabled(ResolutionType type, size_t index) const; + + void setProfileLevel( + ResolutionType type, size_t index, + ProfileType profile, LevelType level); + + void getProfileLevel( + ResolutionType type, size_t index, + ProfileType *profile, LevelType *level) const; + + static bool GetConfiguration( + ResolutionType type, size_t index, + size_t *width, size_t *height, size_t *framesPerSecond, + bool *interlaced); + + static bool GetProfileLevel( + ProfileType profile, LevelType level, + unsigned *profileIdc, unsigned *levelIdc, + unsigned *constraintSet); + + bool parseFormatSpec(const char *spec); + AString getFormatSpec(bool forM4Message = false) const; + + static bool PickBestFormat( + const VideoFormats &sinkSupported, + const VideoFormats &sourceSupported, + ResolutionType *chosenType, + size_t *chosenIndex, + ProfileType *chosenProfile, + LevelType *chosenLevel); + +private: + bool parseH264Codec(const char *spec); + ResolutionType mNativeType; + size_t mNativeIndex; + + uint32_t mResolutionEnabled[kNumResolutionTypes]; + static const config_t mResolutionTable[kNumResolutionTypes][32]; + config_t mConfigs[kNumResolutionTypes][32]; + + DISALLOW_EVIL_CONSTRUCTORS(VideoFormats); +}; + +} // namespace android + +#endif // VIDEO_FORMATS_H_ + |