[processor-sdk/performance-audio-sr.git] / processor_audio_sdk_1_00_00_00 / pasdk / common / paf_decOpCircBuf.h
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3 Copyright (c) 2016, Texas Instruments Incorporated - http://www.ti.com/
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36 #ifndef _DEC_OP_CIRC_BUF_H_
37 #define _DEC_OP_CIRC_BUF_H_
39 #include <xdc/std.h>
40 #include "paftyp.h"
42 #define PAF_DECOP_CB_SOK ( 0 ) // ok
43 #define PAF_DECOP_CB_INIT_INV_SOURCE_SEL ( -1 ) // error: invalid source selection on init
44 #define PAF_DECOP_CB_WRITE_OVERFLOW ( -2 ) // error: write overflow
45 #define PAF_DECOP_CB_READ_UNDERFLOW ( -3 ) // error: read underflow
46 #define PAF_DECOP_CB_READ_INVSTATE ( -4 ) // error: circular buffer invalid state on read
48 #define PAF_DECOP_CB_MAX_NUM_AF ( 4 ) // decoder output circular buffer maximum number audio frames
49 #define PAF_DECOP_CB_MAX_NUM_PCM_CH ( 16 ) // decoder output circular buffer maximum number audio PCM channels
50 #define PAF_DECOP_CB_MAX_NUM_PCM_FRAMES ( 2 ) // decoder output circular buffer maximum number PCM frames //Qin - Increased to prevent cb overflow for ddp.
51 #define PAF_DECOP_CB_MAX_PCM_FRAME_LEN ( 6*256 ) // decoder output circular buffer maximum PCM frame length
52 #define PAF_DECOP_CB_PCM_BUF_SZ ( PAF_DECOP_CB_MAX_NUM_PCM_CH * PAF_DECOP_CB_MAX_NUM_PCM_FRAMES * PAF_DECOP_CB_MAX_PCM_FRAME_LEN )
54 // Decoder output circular buffer
55 typedef struct PAF_DecodeOpCircBuf {
56 PAF_AudioFrame *afCb; // audio frame CB
57 PAF_AudioData *pcmBuf; // PCM buffer, contains PCM data associated with audio frames
58 Int8 *metaBuf; // metafdata buffer, contains metadata associated with audio frames //QIN
59 Int8 afRdIdx; // audio frame CB read index
60 Int8 afWrtIdx; // audio frame CB write index
61 Int16 pcmRdIdx; // pcm buffer read index
62 Int8 numAfCb; // current number frames in CB
63 Int8 maxNumAfCb; // maximum number of audio frames in CB
64 Int16 decOpFrameLen; // selected decoder output frame length (input transaction size)
65 Int16 strFrameLen; // stream frame length (output transaction size)
66 Int8 writerActiveFlag; // flag indicates whether CB writer is active
67 Int8 readerActiveFlag; // flag indicates whether CB reader is active
68 Int8 emptyFlag; // flag indicates whether reader should empty (drain) remaining frames in CB
69 //Int cbWriteAfInit; // indicates whether CB has been initialized for AF writes
70 } PAF_DecodeOpCircBuf;
72 // Start writes to circular buffer
73 Int cbWriteStart(
74 PAF_DecodeOpCircBuf *pCb // decoder output circular buffer
75 );
77 // Stop writes to circular buffer
78 Int cbWriteStop(
79 PAF_DecodeOpCircBuf *pCb // decoder output circular buffer
80 );
82 // Start reads from circular buffer
83 Int cbReadStart(
84 PAF_DecodeOpCircBuf *pCb // decoder output circular buffer
85 );
87 // Stop reads from circular buffer
88 Int cbReadStop(
89 PAF_DecodeOpCircBuf *pCb // decoder output circular buffer
90 );
92 // Read audio frame from circular buffer
93 Int cbReadAf(
94 PAF_DecodeOpCircBuf *pCb, // decoder output circular buffer
95 PAF_AudioFrame *pAfRd // audio frame into which to read
96 );
98 // Write audio frame to circular buffer
99 Int cbWriteAf(
100 PAF_DecodeOpCircBuf *pCb, // decoder output circular buffer
101 PAF_AudioFrame *pAfWrt // audio frame from which to write
102 );
104 // Get next audio frame to write in circular buffer
105 Int cbGetNextWriteAf(
106 PAF_DecodeOpCircBuf *pCb, // decoder output circular buffer
107 PAF_AudioFrame **ppAfWrt // audio frame next to be written
108 );
110 // Output log of circular buffer control variables (debug)
111 Int cbLog(
112 PAF_DecodeOpCircBuf *pCb,
113 Int8 fullLog
114 );
115 // restore read/write flags of the circular buffer. - QIN
116 Int cbReadWriteRestore(
117 PAF_DecodeOpCircBuf *pCb // decoder output circular buffer
118 );
120 #endif /* _DEC_OP_CIRC_BUF_H_ */