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Mp4VideoReader

Struct Mp4VideoReader 

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pub struct Mp4VideoReader { /* private fields */ }
Expand description

Reads H.264-encoded MP4 video files and decodes frames to RGB8.

Combines the MP4 box parser, Annex B NAL extraction, and H.264 decoder into a single end-to-end reader.

let mut reader = Mp4VideoReader::open("input.mp4")?;
while let Some(frame) = reader.next_frame()? {
    // frame.rgb8_data is Vec<u8>, frame.width / frame.height
}

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impl Mp4VideoReader

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pub fn open(path: &Path) -> Result<Self, VideoError>

Open an MP4 file containing H.264 video.

Reads the entire file, parses MP4 boxes to find the mdat box, and extracts NAL units from the raw data.

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pub fn next_frame(&mut self) -> Result<Option<DecodedFrame>, VideoError>

Decode the next frame. Returns None when all NAL units are consumed.

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pub fn seek_start(&mut self)

Reset to the beginning (re-decode from first NAL).

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pub fn nal_count(&self) -> usize

Total number of NAL units found.

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