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AviStreamingDemuxer

Struct AviStreamingDemuxer 

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

Streaming AVI demuxer. Owns the input bytes and walks the movi LIST(s) one chunk at a time. Two backends:

  • Legacy single-movi cursor walk (Backend::Cursor): a stack of (pos, end) frames over a single LIST movi. rec sub-LISTs push a new frame; we pop on EOF to resume the parent.
  • OpenDML index walk (Backend::OpenDml): a precomputed list of (absolute byte offset, size) sample chunks assembled from the stream’s indx superindex + each ix## sub-index. next_video_sample advances cursor and reads data[offset..offset+size]. The streaming impl never holds more than the current sample’s bytes regardless of backend.

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impl StreamingDemuxer for AviStreamingDemuxer

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fn header(&self) -> &DemuxHeader

Header info parsed from the container header. Cheap to call — returns a borrow of the cached DemuxHeader populated at construction time.
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fn next_video_sample(&mut self) -> Result<Option<Sample>>

Pull the next video sample. Returns Ok(None) at EOF. Allocates a fresh Vec per sample; nothing is retained internally beyond the reader’s per-format cursor state.
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fn audio(&self) -> Option<&AudioTrack>

Audio is a single buffered slab populated at construction time (Squad-18/23/27 passthrough pattern). Streaming audio is out of scope for this sprint per the pinned design.

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