Transcoder

High-level pipeline: open input → decode → optionally filter → encode → mux. The equivalent of ffmpeg -ss 12 -to 45 -i in.mp4 -vf "scale=…" -c:v libx264 -c:a aac out.mp4 as one Kotlin call with proper cancellation and typed errors.

All selected streams are demuxed in a single pass. Their packets are interleaved into the output as they are produced, so memory use stays constant regardless of input length.

High-level pipeline: open input → decode → optionally filter → encode → mux. The equivalent of ffmpeg -ss 12 -to 45 -i in.mp4 -vf "scale=…" -c:v libx264 -c:a aac out.mp4 as one Kotlin call with proper cancellation and typed errors.

All selected streams are demuxed in a single pass. Their packets are interleaved into the output as they are produced, so memory use stays constant regardless of input length.

High-level pipeline: open input → decode → optionally filter → encode → mux. The equivalent of ffmpeg -ss 12 -to 45 -i in.mp4 -vf "scale=…" -c:v libx264 -c:a aac out.mp4 as one Kotlin call with proper cancellation and typed errors.

All selected streams are demuxed in a single pass. Their packets are interleaved into the output as they are produced, so memory use stays constant regardless of input length.

High-level pipeline: open input → decode → optionally filter → encode → mux. The equivalent of ffmpeg -ss 12 -to 45 -i in.mp4 -vf "scale=…" -c:v libx264 -c:a aac out.mp4 as one Kotlin call with proper cancellation and typed errors.

All selected streams are demuxed in a single pass. Their packets are interleaved into the output as they are produced, so memory use stays constant regardless of input length.