An encoder converts uncompressed audio or video into compressed packets in the format specified by the application. An encoder is identified by the GUID that represents the category: audio or video. The encoder's output type is represented by a media type's major and the sub type GUID. If you are using pipeline layer components for ASF encoding, the encoder MFT is inserted into the pipeline as a transform node because it is responsible for transforming media data that flows through the source to the sink.
If the source is a compressed type, then the pipeline adds the required decoders to convert the source into an uncompressed type. An encoder has one input stream and one output stream. The encoder receives input data and produces encoded data according to the configuration and format set by the application prior to the encoding session.
The format of the output stream is described by a media type. Skip to main content. This browser is no longer supported. Specifies an intermediate frame height for encoded video. Specifies an intermediate frame width for encoded video.
Specifies whether the codec should use median filtering during encoding. Specifies whether the encoder is allowed to drop frames. Specifies whether the codec output will be interlaced. Specifies the maximum time, in milliseconds, between key frames in the codec output. Specifies the number of frames after the current frame that the codec will evaluate before encoding the current frame.
Specifies whether the codec should use the in-loop deblocking filter during encoding. Specifies the cost method used by the codec to determine which macroblock mode to use. Specifies the method to use for motion matching. Specifies the types of video information that are used in motion search operations.
Specifies the range used in motion searches. Specifies whether the codec should attempt to detect noisy frame edges and remove them. Specifies the number of bidirectional predictive frames B-frames. Specifies the number of threads that the codec will use for encoding.
Specifies the maximum number of passes supported by the codec. Specifies the number of passes that the codec will use to encode the content. Specifies whether the codec should use conservative perceptual optimization when encoding. Specifies whether the encoder produces dummy frame entries in the bit stream for duplicate frames. Specifies QP. Specifies the degree to which the codec should reduce the effective color range of the video.
Specifies the average bit rate, in bits per second, used for 2-pass variable-bit-rate VBR encoding. Specifies whether the encoder uses RD-based sub-pixel MV search. For segment re-encoding, specifies the buffer size. For segment re-encoding, specifies the duration of the segment to be re-encoded. For segment re-encoding, specifies the quantizer of the frame prior to the starting segment. For segment re-encoding, specifies the starting buffer fullness.
Specifies the peak bit rate, in bits per second, used for constrained 2-pass variable-bit-rate VBR. Specifies the number of video frames passed to the encoder during the encoding process. Specifies whether the codec will use variable-bit-rate VBR encoding. Specifies the actual quality level for quality based 1-pass variable-bit-rate VBR encoding.
Specifies whether the codec will use video scaling optimization. Specifies the amount of content, in milliseconds, that can fit into the model buffer. For segment re-encoding, specifies the codec private data of the file that is being re-encoded.
Specifies the type of logic that the codec will use to detect interlaced source video.
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