Crate oxframe_export 

Video export: raw RGBA frames are piped into ffmpeg (no intermediate files) from a writer thread, so encoding overlaps with rendering.

Status: oxframe is under very active development. The API is not stable yet and may change from version to version. Pin the exact version in your Cargo.toml and check the changelog before upgrading.

ffmpeg is looked up in PATH (or an explicit path); if it is missing, ExportError::FfmpegNotFound carries installation instructions.

Structs

Audio

Soundtrack to mux into the video.

ExportOptions

What to export and where.

Exporter

Receives frames in order and writes them out.

Image

8-bit sRGB RGBA, straight alpha, row-major, no padding.

MixClip

One clip on the output timeline.

MixRequest

What to mix.

Mixed

Mono PCM at SAMPLE_RATE.

Enums

ExportError

Why an export failed.

Format

Output format.

MixError

Why a mix failed.

Constants

FFMPEG_HELP

Installation hint shown when ffmpeg is missing.

PREVIEW_RATE

Preview playback is coarser than the render mix.

SAMPLE_RATE

Samples per second of every mix. One rate keeps renders comparable.

Functions

concat

Joins video files encoded with the same settings (segments, in order) into opts.out without re-encoding them, and adds opts.audio. Used by parallel rendering: each segment is encoded on its own, and the result does not depend on how many ran at once.

concat_args

Command line for concat() (without the program name): the segments listed in list joined without re-encoding, plus the soundtrack.

downsample

Average from Hz samples down to to Hz.

envelope

Peak envelope in 0..=1, one value per bucket.

ffmpeg_args

Command line for ffmpeg (without the program name).

find_ffmpeg

Finds ffmpeg: the explicit path if given, else the first match in PATH (with .exe on Windows).

media_duration

Duration of a media file in seconds (via ffmpeg’s decoder).

mix

Mix req into mono PCM.

probe_duration

Length of an audio file in seconds.

waveform

Peak envelope of an audio file for the editor’s waveform: buckets values in 0..=1, decoded with ffmpeg at 8 kHz mono.

write_wav

Write mono PCM as a stereo 16-bit WAV (both channels identical).