Struct exr::block::writer::ChunkWriter [−][src]
#[must_use]pub struct ChunkWriter<W> { /* fields omitted */ }
Expand description
Can consume compressed pixel chunks, writing them a file.
Use sequential_blocks_compressor
or parallel_blocks_compressor
to compress your data,
or use compress_all_blocks_sequential
or compress_all_blocks_parallel
.
Use on_progress
to obtain a new writer
that triggers a callback for each block.
Trait Implementations
impl<W> ChunksWriter for ChunkWriter<W> where
W: Write + Seek,
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impl<W> ChunksWriter for ChunkWriter<W> where
W: Write + Seek,
[src]fn total_chunks_count(&self) -> usize
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fn total_chunks_count(&self) -> usize
[src]The total number of chunks that the complete file will contain.
fn write_chunk(
&mut self,
index_in_header_increasing_y: usize,
chunk: Chunk
) -> UnitResult
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fn write_chunk(
&mut self,
index_in_header_increasing_y: usize,
chunk: Chunk
) -> UnitResult
[src]Any more calls will result in an error and have no effect. If writing results in an error, the file and the writer may remain in an invalid state and should not be used further. Errors when the chunk at this index was already written.
fn on_progress<F>(
&mut self,
on_progress: F
) -> OnProgressChunkWriter<'_, Self, F> where
F: FnMut(f64),
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fn on_progress<F>(
&mut self,
on_progress: F
) -> OnProgressChunkWriter<'_, Self, F> where
F: FnMut(f64),
[src]Obtain a new writer that calls the specified closure for each block that is written to this writer.
fn sequential_blocks_compressor<'w>(
&'w mut self,
meta: &'w MetaData
) -> SequentialBlocksCompressor<'w, Self>
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fn sequential_blocks_compressor<'w>(
&'w mut self,
meta: &'w MetaData
) -> SequentialBlocksCompressor<'w, Self>
[src]Obtain a new writer that can compress blocks to chunks, which are then passed to this writer.
fn parallel_blocks_compressor<'w>(
&'w mut self,
meta: &'w MetaData
) -> Option<ParallelBlocksCompressor<'w, Self>>
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fn parallel_blocks_compressor<'w>(
&'w mut self,
meta: &'w MetaData
) -> Option<ParallelBlocksCompressor<'w, Self>>
[src]Obtain a new writer that can compress blocks to chunks on multiple threads, which are then passed to this writer. Returns none if the sequential compressor should be used instead (thread pool creation failure or too large performance overhead). Read more
fn compress_all_blocks_sequential(
self,
meta: &MetaData,
blocks: impl Iterator<Item = (usize, UncompressedBlock)>
) -> UnitResult
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fn compress_all_blocks_sequential(
self,
meta: &MetaData,
blocks: impl Iterator<Item = (usize, UncompressedBlock)>
) -> UnitResult
[src]Compresses all blocks to the file.
The index of the block must be in increasing line order within the header.
Obtain iterator with MetaData::collect_ordered_blocks(...)
or similar methods. Read more
fn compress_all_blocks_parallel(
self,
meta: &MetaData,
blocks: impl Iterator<Item = (usize, UncompressedBlock)>
) -> UnitResult
[src]
fn compress_all_blocks_parallel(
self,
meta: &MetaData,
blocks: impl Iterator<Item = (usize, UncompressedBlock)>
) -> UnitResult
[src]Compresses all blocks to the file.
The index of the block must be in increasing line order within the header.
Obtain iterator with MetaData::collect_ordered_blocks(...)
or similar methods. Read more
Auto Trait Implementations
impl<W> RefUnwindSafe for ChunkWriter<W> where
W: RefUnwindSafe,
W: RefUnwindSafe,
impl<W> Send for ChunkWriter<W> where
W: Send,
W: Send,
impl<W> Sync for ChunkWriter<W> where
W: Sync,
W: Sync,
impl<W> Unpin for ChunkWriter<W> where
W: Unpin,
W: Unpin,
impl<W> UnwindSafe for ChunkWriter<W> where
W: UnwindSafe,
W: UnwindSafe,