// VIDEO DECODERS: the framework uses OMX_SetConfig to specify the default color aspects to use
// for the video.
// This may happen:
-// f) before the component transitions to idle state
-// g) during execution, when the resolution or the default color aspects change.
+// a) before the component transitions to idle state
+// b) during execution, when the resolution or the default color aspects change.
//
// The framework also uses OMX_GetConfig to
-// h) get the final color aspects reported by the coded bitstream after taking the default values
+// c) get the final color aspects reported by the coded bitstream after taking the default values
// into account.
//
// 1. Decoders should maintain two color aspect states - the default state as reported by the
// or as Unspecified, if not defined.
//
// BOTH DECODERS AND ENCODERS: the framework uses OMX_GetConfig during idle and executing state to
-// i) (optional) get guidance for the dataspace to set for given color aspects, by setting
+// f) (optional) get guidance for the dataspace to set for given color aspects, by setting
// bRequestingDataSpace to OMX_TRUE. The component SHALL return OMX_ErrorUnsupportedSettings
// IF it does not support this request.
//
// to perform color-space extension by inline color-space conversion to facilitate a more optimal
// rendering pipeline.).
//
+// Note: the size of sAspects may increase in the future by additional fields.
+// Implementations SHOULD NOT require a certain size.
struct DescribeColorAspectsParams {
OMX_U32 nSize; // IN
OMX_VERSIONTYPE nVersion; // IN
ColorAspects sAspects; // IN/OUT
};
+// HDR color description parameters.
+// This is passed via OMX_SetConfig or OMX_GetConfig to video encoders and decoders when the
+// 'OMX.google.android.index.describeHDRColorInfo' extension is given and an HDR stream
+// is detected. Component SHALL behave as described below if it supports this extension.
+//
+// Currently, only Static Metadata Descriptor Type 1 support is required.
+//
+// VIDEO ENCODERS: the framework uses OMX_SetConfig to specify the HDR static information of the
+// coded video.
+// This may happen:
+// a) before the component transitions to idle state
+// b) before the input frame is sent via OMX_EmptyThisBuffer in executing state
+// c) during execution, just before an input frame with a different HDR static
+// information is sent.
+//
+// The framework also uses OMX_GetConfig to
+// d) verify the HDR static information that will be written to the stream.
+//
+// 1. Encoders SHOULD maintain an internal HDR static info data, initialized to Unspecified values.
+// This represents the values that will be written into the bitstream.
+// 2. Upon OMX_SetConfig, they SHOULD update their internal state to the info received
+// (including Unspecified values). For specific parameters that are not supported by the
+// codec standard, encoders SHOULD substitute Unspecified values. NOTE: no other substitution
+// is allowed.
+// 3. OMX_GetConfig SHALL return the internal state (values that will be written).
+// 4. OMX_SetConfig SHALL always succeed before receiving the first frame if the encoder is
+// configured into an HDR compatible profile. It MAY fail with OMX_ErrorUnsupportedSettings error
+// code if it is not configured into such a profile, OR if the configured values would change
+// AND the component does not support updating the HDR static information mid-stream. If the
+// component supports updating a portion of the information, those values should be updated in
+// the internal state, and OMX_SetConfig SHALL succeed. Otherwise, the internal state SHALL
+// remain intact.
+//
+// VIDEO DECODERS: the framework uses OMX_SetConfig to specify the default HDR static information
+// to use for the video.
+// a) This only happens if the client supplies this information, in which case it occurs before
+// the component transitions to idle state.
+// b) This may also happen subsequently if the default HDR static information changes.
+//
+// The framework also uses OMX_GetConfig to
+// c) get the final HDR static information reported by the coded bitstream after taking the
+// default values into account.
+//
+// 1. Decoders should maintain two HDR static information structures - the default values as
+// reported by the framework, and the coded values as reported by the bitstream - as each
+// structure can change independently from the other.
+// 2. Upon OMX_SetConfig, it SHALL update its default structure regardless of whether such static
+// parameters could be supplied by the component bitstream. (E.g. it should blindly support all
+// parameter values, even seemingly illegal ones). This SHALL always succeed.
+// Note: The descriptor ID used in sInfo may change in subsequent calls. (although for now only
+// Type 1 support is required.)
+// 3. Upon OMX_GetConfig, the component SHALL return the final HDR static information by replacing
+// Unspecified coded values with the default values. This SHALL always succeed. This may be
+// provided using any supported descriptor ID (currently only Type 1) with the goal of expressing
+// the most of the available static information.
+// 4. Whenever the component processes HDR static information in the bitstream even ones with
+// Unspecified parameters, it SHOULD update its internal coded structure with that information
+// just before the frame with the new information would be outputted, and the component SHALL
+// signal an OMX_EventPortSettingsChanged event with data2 set to the extension index.
+// NOTE: Component SHOULD NOT signal a separate event purely for HDR static info change, if it
+// occurs together with a port definition (e.g. size), color aspect or crop change.
+// 5. If certain parameters of the HDR static information encountered in the bitstream cannot be
+// represented using sInfo, the component SHALL use the closest representation.
+//
+// Note: the size of sInfo may increase in the future by supporting additional descriptor types.
+// Implementations SHOULD NOT require a certain size.
+struct DescribeHDRStaticInfoParams {
+ OMX_U32 nSize; // IN
+ OMX_VERSIONTYPE nVersion; // IN
+ OMX_U32 nPortIndex; // IN
+ HDRStaticInfo sInfo; // IN/OUT
+};
+
} // namespace android
extern android::OMXPluginBase *createOMXPlugin();
/**
* Structure describing a media image (frame)
*/
-struct MediaImage2 {
+struct __attribute__ ((__packed__)) MediaImage2 {
enum Type : uint32_t {
MEDIA_IMAGE_TYPE_UNKNOWN = 0,
MEDIA_IMAGE_TYPE_YUV,
uint32_t mBitDepth; // useable bit depth (always MSB)
uint32_t mBitDepthAllocated; // bits per component (must be 8 or 16)
- struct PlaneInfo {
+ struct __attribute__ ((__packed__)) PlaneInfo {
uint32_t mOffset; // offset of first pixel of the plane in bytes
// from buffer offset
int32_t mColInc; // column increment in bytes
void initFromV1(const MediaImage&); // for internal use only
};
+static_assert(sizeof(MediaImage2::PlaneInfo) == 20, "wrong struct size");
+static_assert(sizeof(MediaImage2) == 104, "wrong struct size");
+
/**
* Aspects of color.
*/
// though could verify that nSize is at least the size of the structure at the
// time of implementation. All new fields will be added at the end of the structure
// ensuring backward compatibility.
-struct ColorAspects {
+struct __attribute__ ((__packed__)) ColorAspects {
// this is in sync with the range values in graphics.h
enum Range : uint32_t {
RangeUnspecified,
MatrixCoeffs mMatrixCoeffs; // IN/OUT
};
+static_assert(sizeof(ColorAspects) == 16, "wrong struct size");
+
+/**
+ * HDR Metadata.
+ */
+
+// HDR Static Metadata Descriptor as defined by CTA-861-3.
+struct __attribute__ ((__packed__)) HDRStaticInfo {
+ // Static_Metadata_Descriptor_ID
+ enum ID : uint8_t {
+ kType1 = 0, // Static Metadata Type 1
+ } mID;
+
+ struct __attribute__ ((__packed__)) Primaries1 {
+ // values are in units of 0.00002
+ uint16_t x;
+ uint16_t y;
+ };
+
+ // Static Metadata Descriptor Type 1
+ struct __attribute__ ((__packed__)) Type1 {
+ Primaries1 mR; // display primary 0
+ Primaries1 mG; // display primary 1
+ Primaries1 mB; // display primary 2
+ Primaries1 mW; // white point
+ uint16_t mMaxDisplayLuminance; // in cd/m^2
+ uint16_t mMinDisplayLuminance; // in 0.0001 cd/m^2
+ uint16_t mMaxContentLightLevel; // in cd/m^2
+ uint16_t mMaxFrameAverageLightLevel; // in cd/m^2
+ };
+
+ union {
+ Type1 sType1;
+ };
+};
+
+static_assert(sizeof(HDRStaticInfo::Primaries1) == 4, "wrong struct size");
+static_assert(sizeof(HDRStaticInfo::Type1) == 24, "wrong struct size");
+static_assert(sizeof(HDRStaticInfo) == 25, "wrong struct size");
+
#ifdef STRINGIFY_ENUMS
inline static const char *asString(MediaImage::Type i, const char *def = "??") {
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