mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-10-30 21:12:24 -05:00
cde2fb6244* initial work replacing our media decoding / encoding pipeline with ffprobe + ffmpeg
* specify the video codec to use when generating static image from emoji
* update go-storage library (fixes incompatibility after updating go-iotools)
* maintain image aspect ratio when generating a thumbnail for it
* update readme to show go-ffmpreg
* fix a bunch of media tests, move filesize checking to callers of media manager for more flexibility
* remove extra debug from error message
* fix up incorrect function signatures
* update PutFile to just use regular file copy, as changes are file is on separate partition
* fix remaining tests, remove some unneeded tests now we're working with ffmpeg/ffprobe
* update more tests, add more code comments
* add utilities to generate processed emoji / media outputs
* fix remaining tests
* add test for opus media file, add license header to utility cmds
* limit the number of concurrently available ffmpeg / ffprobe instances
* reduce number of instances
* further reduce number of instances
* fix envparsing test with configuration variables
* update docs and configuration with new media-{local,remote}-max-size variables
85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package iotools
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import "io"
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// AtEOF returns true when reader at EOF,
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// this is checked with a 0 length read.
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func AtEOF(r io.Reader) bool {
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_, err := r.Read(nil)
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return (err == io.EOF)
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}
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// GetReadCloserLimit attempts to cast io.Reader to access its io.LimitedReader with limit.
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func GetReaderLimit(r io.Reader) (*io.LimitedReader, int64) {
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lr, ok := r.(*io.LimitedReader)
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if !ok {
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return nil, -1
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}
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return lr, lr.N
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}
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// UpdateReaderLimit attempts to update the limit of a reader for existing, newly wrapping if necessary.
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func UpdateReaderLimit(r io.Reader, limit int64) (*io.LimitedReader, int64) {
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lr, ok := r.(*io.LimitedReader)
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if !ok {
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lr = &io.LimitedReader{r, limit}
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return lr, limit
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}
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if limit < lr.N {
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// Update existing.
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lr.N = limit
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}
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return lr, lr.N
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}
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// GetReadCloserLimit attempts to unwrap io.ReadCloser to access its io.LimitedReader with limit.
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func GetReadCloserLimit(rc io.ReadCloser) (*io.LimitedReader, int64) {
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rct, ok := rc.(*ReadCloserType)
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if !ok {
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return nil, -1
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}
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lr, ok := rct.Reader.(*io.LimitedReader)
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if !ok {
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return nil, -1
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}
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return lr, lr.N
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}
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// UpdateReadCloserLimit attempts to update the limit of a readcloser for existing, newly wrapping if necessary.
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func UpdateReadCloserLimit(rc io.ReadCloser, limit int64) (io.ReadCloser, *io.LimitedReader, int64) {
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// Check for our wrapped ReadCloserType.
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if rct, ok := rc.(*ReadCloserType); ok {
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// Attempt to update existing wrapped limit reader.
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if lr, ok := rct.Reader.(*io.LimitedReader); ok {
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if limit < lr.N {
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// Update existing.
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lr.N = limit
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}
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return rct, lr, lr.N
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}
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// Wrap the reader type with new limit.
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lr := &io.LimitedReader{rct.Reader, limit}
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rct.Reader = lr
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return rct, lr, lr.N
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}
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// Wrap separated types.
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rct := &ReadCloserType{
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Reader: rc,
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Closer: rc,
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}
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// Wrap separated reader part with limit.
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lr := &io.LimitedReader{rct.Reader, limit}
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rct.Reader = lr
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return rct, lr, lr.N
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}
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