CMMFVideoEncodeHwDevice Class Reference

Constructor.

Destructor.

Returns coding-standard specific initialization output from the encoder. The information can contain, for example, the MPEG-4 VOL header. This method can be called after Initialize() has been called.

Returns coding-standard specific settings output from the encoder. The information can contain, for example, some bitstream headers that can change based on settings modified while encoding is in progress.

Gets the current output buffer status. The information includes the number of free output buffers and the total size of free buffers in bytes.

Returns implementation-specific initialization output from the encoder. This method can be called after Initialize() has been called.

Returns implementation-specific settings output from the encoder. The information can contain, for example, some bitstream headers that can change based on settings modified while encoding is in progress.

Creates a new video encoder hardware device object, based on the implementation UID.

Creates a new video encoder hardware device adapter object, based on the Interface Implementation of a Processing Unit.

Sends a reference picture selection request to the encoder. The request is delivered as a coding-standard specific binary message. Reference picture selection can be used to select a previous correctly transmitted picture to use as a reference in case later pictures have been lost.

Returns a used output buffer back to the encoder. The buffer can be reused or deallocated.

Requests the encoder to sends supplemental information in the bitstream. The information data format is coding-standard dependent. Only one supplemental information send request can be active at a time. This variant encodes the information to the next possible picture.

The client must be notified after then information has been sent by calling MMMFDevVideoRecordProxy::MdvrpSupplementalInfoSent().

Requests the encoder to sends supplemental information in the bitstream. The information data format is coding-standard dependent. Only one supplemental information send request can be active at a time. This variant encodes the information to the picture specified.

Sets encoder buffering options.

Sets the expected or prevailing channel conditions for an unequal error protection level, in terms of expected bit error rate. The video encoder can use this information to optimize the generated bitstream.

Sets the expected or prevailing channel conditions for an unequal error protection level, in terms of expected packet loss rate. The video encoder can use this information to optimize the generated bitstream.

Sets coding-standard specific encoder options.

Sets up an unequal error protection level. If unequal error protection is not used, this method can be used to control settings for the whole encoded bitstream.

Sets the number of unequal error protection levels. By default unequal error protection is not used.

Sets whether bit errors or packets losses can be expected in the video transmission. The video encoder can use this information to optimize the bitstream.

Sets the reference picture options to be used for all scalability layers. The settings can be overridden for an individual scalability layer by using SetLayerReferenceOptions().

Sets implementation-specific encoder options.

Sets in-layer scalability options for a layer. In-layer bit-rate scalability refers to techniques where a specific part of a single-layer coded stream can be decoded correctly without decoding the leftover part. For example, B-pictures can be used for this. By default in-layer scalability is not used.

Sets the pre-processor device that will write data to this encoder. Uncompressed pictures will be written with WritePictureL() or through a custom interface. After pictures have been processed, they must be returned to the pre-processor using ReturnPicture().

Sets the period for layer promotions points for a scalability layer. A layer promotion point is a picture where it is possible to start decoding this enhancement layer if only the lower layers were decoded earlier.

Sets the reference picture options to be used for a single scalability layer. These settings override those set with SetGlobalReferenceOptions().

Sets the minimum frequency (in time) for instantaneous random access points in the bitstream. An instantaneous random access point is such where the decoder can achieve a full output picture immediately by decoding data starting from the random access point. The random access point frequency may be higher than signalled, if the sequence contains scene cuts which typically cause a coding of a random access point.

Sets the number of bit-rate scalability layers to use. Set to 1 to disable layered scalability.

Bit-rate scalability refers to the ability of a coded stream to be decoded at different bit-rates. Scalable video is typically ordered into hierarchical layers of data. A base layer contains an individual representation of a video stream and enhancement layers contain refinement data in addition to the base layer. The quality of the decoded video stream progressively improves as enhancement layers are added to the base layer.

Sets the encoder output format. The picture size depends on the input data format and possible scaling performed.

Sets the encoder output rectangle. This rectangle specifies the part of the input and output pictures which is displayed after encoding. Many video codecs process data in 16x16 pixel units but enable specifying and coding the encoder output rectangle for image sizes that are not multiple of 16 pixels (e.g 160x120).

Set the proxy implementation to be used. Called just after the object is constructed.

Sets the bit-rate control options for a layer. If layered bit-rate scalability is not used, the options are set for the whole bitstream.

Sets the scalability type for a bit-rate scalability layer.

Sets the target size of each coded video segment. The segment target size can be specified in terms of number of bytes per segment, number of macroblocks per segment, or both.

Indicates a slice loss to the encoder.

Retrieves information about the video encoder.