codec/mjpeg: renamed Ctx type to Context and name value of this type ctx instead of c

This commit is contained in:
Saxon 2019-12-29 22:40:54 +10:30
parent b5f87481ba
commit c691d4c1ff
2 changed files with 8 additions and 8 deletions

View File

@ -48,7 +48,7 @@ func NewExtractor() *Extractor { return &Extractor{} }
// function expects that each read from src will provide a single RTP packet. // function expects that each read from src will provide a single RTP packet.
func (e *Extractor) Extract(dst io.Writer, src io.Reader, delay time.Duration) error { func (e *Extractor) Extract(dst io.Writer, src io.Reader, delay time.Duration) error {
buf := make([]byte, maxRTPSize) buf := make([]byte, maxRTPSize)
c := NewCtx(dst) ctx := NewContext(dst)
for { for {
n, err := src.Read(buf) n, err := src.Read(buf)
@ -72,7 +72,7 @@ func (e *Extractor) Extract(dst io.Writer, src io.Reader, delay time.Duration) e
return fmt.Errorf("could not read RTP marker: %w", err) return fmt.Errorf("could not read RTP marker: %w", err)
} }
err = c.ParsePayload(p, m) err = ctx.ParsePayload(p, m)
if err != nil { if err != nil {
return fmt.Errorf("could not parse JPEG scan: %w", err) return fmt.Errorf("could not parse JPEG scan: %w", err)
} }

View File

@ -135,25 +135,25 @@ var defaultQuantisers = []byte{
99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
} }
// Ctx describes a RTP/JPEG parsing context that will keep track of the current // Context describes a RTP/JPEG parsing context that will keep track of the current
// JPEG (held by p), and the state of the quantization tables. // JPEG (held by p), and the state of the quantization tables.
type Ctx struct { type Context struct {
qTables [128][128]byte qTables [128][128]byte
qTablesLen [128]byte qTablesLen [128]byte
p *putBuffer p *putBuffer
d io.Writer d io.Writer
} }
// NewCTX will return a new Ctx. // NewContext will return a new Context.
func NewCtx(d io.Writer) *Ctx { func NewContext(d io.Writer) *Context {
return &Ctx{ return &Context{
d: d, d: d,
p: newPutBuffer(make([]byte, maxJPEG)), p: newPutBuffer(make([]byte, maxJPEG)),
} }
} }
// ParsePayload will parse an RTP/JPEG payload and append to current image. // ParsePayload will parse an RTP/JPEG payload and append to current image.
func (c *Ctx) ParsePayload(p []byte, m bool) error { func (c *Context) ParsePayload(p []byte, m bool) error {
b := newByteStream(p) b := newByteStream(p)
_ = b.get8() // Ignore type-specific flag _ = b.get8() // Ignore type-specific flag