pdf: Add decoder

Author: wader

format/all/all.go

@@ -36,6 +36,7 @@ import (
 	_ "github.com/wader/fq/format/ogg"
 	_ "github.com/wader/fq/format/opus"
 	_ "github.com/wader/fq/format/pcap"
+	_ "github.com/wader/fq/format/pdf"
 	_ "github.com/wader/fq/format/png"
 	_ "github.com/wader/fq/format/protobuf"
 	_ "github.com/wader/fq/format/raw"

format/format.go

@@ -98,6 +98,7 @@ const (
 	OPUS_PACKET         = "opus_packet"
 	PCAP                = "pcap"
 	PCAPNG              = "pcapng"
+	PDF                 = "pdf"
 	PNG                 = "png"
 	PROTOBUF            = "protobuf"
 	PROTOBUF_WIDEVINE   = "protobuf_widevine"