Merged in mjpeg-to-jpeg (pull request #446)

codec: renmaed mjpeg package to jpeg and alter terminology throughout av repo to use mjpeg and jpeg terms appropriately.

Approved-by: Trek Hopton

codec/codecutil/list.go

@@ -24,9 +24,6 @@ LICENSE
 
 package codecutil
 
-// numCodecs is the number of entries in the list of codecs.
-const numCodecs = 5
-
 // A global list containing all available codecs for reference in any application.
 // When adding or removing a codec from this list, the numCodecs const must be updated.
 const (
@@ -37,9 +34,10 @@ const (
 	H265
 	MJPEG
 	JPEG
+	maxCodec
 )
 
 // IsValid recieves an int representing a codec and checks if it is valid.
 func IsValid(codec uint8) bool {
-	return 0 < codec && codec <= numCodecs
+	return 0 < codec && codec < maxCodec
 }

codec/jpeg/extract.go

@@ -23,10 +23,7 @@ LICENSE
   along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
 */
 
-// Package mjpeg provides functionality for extraction of MJPEG from an
-// RTP-MJPEG stream and lexing of individual JPEGs from a bare bones
-// MJPEG stream.
-package mjpeg
+package jpeg
 
 import (
 	"fmt"

codec/jpeg/extract_test.go

@@ -22,7 +22,7 @@ LICENSE
   along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
 */
 
-package mjpeg
+package jpeg
 
 import (
 	"bytes"
@@ -53,7 +53,7 @@ func TestExtract(t *testing.T) {
 
 	want, err := ioutil.ReadFile("testdata/expect.mjpeg")
 	if err != nil {
-		t.Fatalf("could not read file for wanted MJPEG data: %v", err)
+		t.Fatalf("could not read file for wanted JPEG data: %v", err)
 	}
 
 	if !bytes.Equal(got.Bytes(), want) {

codec/jpeg/jpeg.go

@@ -30,7 +30,7 @@ LICENSE
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
-package mjpeg
+package jpeg
 
 import (
 	"encoding/binary"

codec/jpeg/jpeg_test.go

@@ -22,7 +22,7 @@ LICENSE
   along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
 */
 
-package mjpeg
+package jpeg
 
 import (
 	"bytes"

codec/jpeg/lex.go

@@ -27,7 +27,7 @@ LICENSE
   along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
 */
 
-package mjpeg
+package jpeg
 
 import (
 	"bufio"

codec/jpeg/lex_test.go

@@ -27,7 +27,7 @@ LICENSE
 
 // lex_test.go provides testing for the lexer in lex.go.
 
-package mjpeg
+package jpeg
 
 import (
 	"bytes"

container/mts/encoder.go

@@ -51,6 +51,7 @@ const (
 const (
 	EncodeH264 = iota
 	EncodeH265
+	EncodeJPEG
 	EncodeMJPEG
 	EncodePCM
 	EncodeADPCM

container/mts/options.go

@@ -67,8 +67,8 @@ func TimeBasedPSI(dur time.Duration) func(*Encoder) error {
 
 // MediaType is an option that can be passed to NewEncoder. It is used to
 // specifiy the media type/codec of the data we are packetising using the
-// encoder. Currently supported options are EncodeH264, EncodeH265, EncodeMJPEG, EncodePCM
-// and EncodeADPCM.
+// encoder. Currently supported options are EncodeH264, EncodeH265, EncodeMJPEG,
+// EncodeJPEG, EncodePCM and EncodeADPCM.
 func MediaType(mt int) func(*Encoder) error {
 	return func(e *Encoder) error {
 		switch mt {
@@ -92,6 +92,10 @@ func MediaType(mt int) func(*Encoder) error {
 			e.mediaPID = PIDVideo
 			e.streamID = pes.MJPEGSID
 			e.log.Debug("configured for MJPEG packetisation")
+		case EncodeJPEG:
+			e.mediaPID = PIDVideo
+			e.streamID = pes.JPEGSID
+			e.log.Debug("configure for JPEG packetisation")
 		default:
 			return ErrUnsupportedMedia
 		}

container/mts/pes/helpers.go

@@ -30,7 +30,8 @@ import "errors"
 const (
 	H264SID  = 27
 	H265SID  = 36
-	MJPEGSID = 28
+	MJPEGSID = 136
+	JPEGSID = 137
 	PCMSID   = 192
 	ADPCMSID = 193
 )
@@ -44,6 +45,8 @@ func SIDToMIMEType(id int) (string, error) {
 		return "video/h265", nil
 	case MJPEGSID:
 		return "video/x-motion-jpeg", nil
+	case JPEGSID:
+		return "image/jpeg", nil
 	case PCMSID:
 		return "audio/pcm", nil
 	case ADPCMSID:

revid/config/config.go

@@ -59,7 +59,7 @@ const (
 	// Codecs.
 	H264
 	H265
-	MJPEG
+	JPEG
 )
 
 // Quality represents video quality.

revid/pipeline.go

@@ -37,7 +37,7 @@ import (
 	"bitbucket.org/ausocean/av/codec/codecutil"
 	"bitbucket.org/ausocean/av/codec/h264"
 	"bitbucket.org/ausocean/av/codec/h265"
-	"bitbucket.org/ausocean/av/codec/mjpeg"
+	"bitbucket.org/ausocean/av/codec/jpeg"
 	"bitbucket.org/ausocean/av/container/flv"
 	"bitbucket.org/ausocean/av/container/mts"
 	"bitbucket.org/ausocean/av/device"
@@ -324,11 +324,11 @@ func (r *Revid) setLexer(c uint8, isRTSP bool) error {
 		if !isRTSP {
 			return errors.New("byte stream h.265 lexing not implemented")
 		}
-	case codecutil.MJPEG:
-		r.cfg.Logger.Log(logger.Debug, "using MJPEG codec")
-		r.lexTo = mjpeg.Lex
+	case codecutil.MJPEG, codecutil.JPEG:
+		r.cfg.Logger.Log(logger.Debug, "using MJPEG/JPEG codec")
+		r.lexTo = jpeg.Lex
 		if isRTSP {
-			r.lexTo = mjpeg.NewExtractor().Extract
+			r.lexTo = jpeg.NewExtractor().Extract
 		}
 	case codecutil.PCM, codecutil.ADPCM:
 		return errors.New("invalid codec for this selected input")