From 380d83f9a968da60419e0afbd8b37bd50ba953de Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 25 Sep 2023 11:33:10 +0100
Subject: [chore]: Bump github.com/abema/go-mp4 from 0.13.0 to 1.0.0 (#2222)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .../abema/go-mp4/internal/bitio/write.go           | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 vendor/github.com/abema/go-mp4/internal/bitio/write.go

(limited to 'vendor/github.com/abema/go-mp4/internal/bitio/write.go')

diff --git a/vendor/github.com/abema/go-mp4/internal/bitio/write.go b/vendor/github.com/abema/go-mp4/internal/bitio/write.go
new file mode 100644
index 000000000..5f63dd2d2
--- /dev/null
+++ b/vendor/github.com/abema/go-mp4/internal/bitio/write.go
@@ -0,0 +1,61 @@
+package bitio
+
+import (
+	"io"
+)
+
+type Writer interface {
+	io.Writer
+
+	// alignment:
+	//  |-1-byte-block-|--------------|--------------|--------------|
+	//  |<-offset->|<-------------------width---------------------->|
+	WriteBits(data []byte, width uint) error
+
+	WriteBit(bit bool) error
+}
+
+type writer struct {
+	writer io.Writer
+	octet  byte
+	width  uint
+}
+
+func NewWriter(w io.Writer) Writer {
+	return &writer{writer: w}
+}
+
+func (w *writer) Write(p []byte) (n int, err error) {
+	if w.width != 0 {
+		return 0, ErrInvalidAlignment
+	}
+	return w.writer.Write(p)
+}
+
+func (w *writer) WriteBits(data []byte, width uint) error {
+	length := uint(len(data)) * 8
+	offset := length - width
+	for i := offset; i < length; i++ {
+		oi := i / 8
+		if err := w.WriteBit((data[oi]>>(7-i%8))&0x01 != 0); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (w *writer) WriteBit(bit bool) error {
+	if bit {
+		w.octet |= 0x1 << (7 - w.width)
+	}
+	w.width++
+
+	if w.width == 8 {
+		if _, err := w.writer.Write([]byte{w.octet}); err != nil {
+			return err
+		}
+		w.octet = 0x00
+		w.width = 0
+	}
+	return nil
+}
-- 
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