Initial community commit

Src/h264dec/lcommon/inc/nalucommon.h

@@ -0,0 +1,64 @@
+
+/*!
+ **************************************************************************************
+ * \file
+ *    nalucommon.h
+ * \brief
+ *    NALU handling common to encoder and decoder
+ * \author
+ *    Main contributors (see contributors.h for copyright, address and affiliation details)
+ *      - Stephan Wenger        <stewe@cs.tu-berlin.de>
+ *      - Karsten Suehring      <suehring@hhi.de>
+ ***************************************************************************************
+ */
+
+#ifndef _NALUCOMMON_H_
+#define _NALUCOMMON_H_
+
+#define MAXRBSPSIZE 64000
+#define MAXNALUSIZE 64000
+
+//! values for nal_unit_type
+typedef enum {
+ NALU_TYPE_SLICE    = 1,
+ NALU_TYPE_DPA      = 2,
+ NALU_TYPE_DPB      = 3,
+ NALU_TYPE_DPC      = 4,
+ NALU_TYPE_IDR      = 5,
+ NALU_TYPE_SEI      = 6,
+ NALU_TYPE_SPS      = 7,
+ NALU_TYPE_PPS      = 8,
+ NALU_TYPE_AUD      = 9,
+ NALU_TYPE_EOSEQ    = 10,
+ NALU_TYPE_EOSTREAM = 11,
+ NALU_TYPE_FILL     = 12
+} NaluType;
+
+//! values for nal_ref_idc
+typedef enum {
+ NALU_PRIORITY_HIGHEST     = 3,
+ NALU_PRIORITY_HIGH        = 2,
+ NALU_PRIORITY_LOW         = 1,
+ NALU_PRIORITY_DISPOSABLE  = 0
+} NalRefIdc;
+
+//! NAL unit structure
+typedef struct nalu_t
+{
+  int       startcodeprefix_len;   //!< 4 for parameter sets and first slice in picture, 3 for everything else (suggested)
+  unsigned  len;                   //!< Length of the NAL unit (Excluding the start code, which does not belong to the NALU)
+  unsigned  max_size;              //!< NAL Unit Buffer size
+  int       forbidden_bit;         //!< should be always FALSE
+  NaluType  nal_unit_type;         //!< NALU_TYPE_xxxx
+  NalRefIdc nal_reference_idc;     //!< NALU_PRIORITY_xxxx  
+  byte     *buf;                   //!< contains the first byte followed by the EBSP
+  uint16    lost_packets;     //!< true, if packet loss is detected
+} NALU_t;
+
+//! allocate one NAL Unit
+extern NALU_t *AllocNALU(int);
+
+//! free one NAL Unit
+extern void FreeNALU(NALU_t *n);
+
+#endif