Module stream_copy 

Watermark and graphic overlay embedding during transcoding. Stream copy (passthrough) mode for transcoding.

When the source codec matches the desired output codec and no filters (resize, crop, tone-map, etc.) are required, the stream can be copied bit-for-bit without re-encoding. This is dramatically faster and preserves the original quality.

Structs

CopyDecision

Result of a stream copy eligibility check.

StreamCopyConfig

Configuration for stream copy decisions.

StreamCopyDetector

Detects whether streams can be copied without re-encoding.

StreamInfo

Information about a single media stream used for copy-eligibility checks.

Enums

StreamCopyMode

Describes which streams should be copied vs. re-encoded.

StreamType

Type of a media stream.

Constants

STREAM_COPY_SPEEDUP_FACTOR

Estimated speedup factor when stream-copying vs. re-encoding.

Functions

estimate_time_saved

Estimates the time saved by stream copying instead of re-encoding.