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@ -57,20 +57,20 @@ static int useplc = 0;
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#include "slin_ulaw_ex.h"
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#include "ulaw_slin_ex.h"
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/*
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* Private workspace for translating signed linear signals to ulaw.
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/*!
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* \brief Private workspace for translating signed linear signals to ulaw.
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*/
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struct ulaw_encoder_pvt
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{
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struct ast_frame f;
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char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
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unsigned char outbuf[BUFFER_SIZE]; /* Encoded ulaw, two nibbles to a word */
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char offset[AST_FRIENDLY_OFFSET]; /*!< Space to build offset */
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unsigned char outbuf[BUFFER_SIZE]; /*!< Encoded ulaw, two nibbles to a word */
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int tail;
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};
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/*
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* Private workspace for translating ulaw signals to signed linear.
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/*!
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* \brief Private workspace for translating ulaw signals to signed linear.
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*/
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struct ulaw_decoder_pvt
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@ -82,8 +82,8 @@ struct ulaw_decoder_pvt
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plc_state_t plc;
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};
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/*
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* ulawToLin_New
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/*!
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* \brief ulawToLin_New
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* Create a new instance of ulaw_decoder_pvt.
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*
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* Results:
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@ -93,13 +93,11 @@ struct ulaw_decoder_pvt
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* None.
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*/
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static struct ast_translator_pvt *
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ulawtolin_new (void)
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static struct ast_translator_pvt *ulawtolin_new(void)
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{
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struct ulaw_decoder_pvt *tmp;
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tmp = malloc(sizeof(struct ulaw_decoder_pvt));
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if (tmp)
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{
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if (tmp) {
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memset(tmp, 0, sizeof(*tmp));
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tmp->tail = 0;
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plc_init(&tmp->plc);
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@ -109,8 +107,8 @@ ulawtolin_new (void)
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return (struct ast_translator_pvt *)tmp;
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}
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/*
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* LinToulaw_New
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/*!
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* \brief LinToulaw_New
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* Create a new instance of ulaw_encoder_pvt.
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*
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* Results:
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@ -120,13 +118,11 @@ ulawtolin_new (void)
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* None.
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*/
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static struct ast_translator_pvt *
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lintoulaw_new (void)
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static struct ast_translator_pvt *lintoulaw_new(void)
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{
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struct ulaw_encoder_pvt *tmp;
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tmp = malloc(sizeof(struct ulaw_encoder_pvt));
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if (tmp)
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{
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if (tmp) {
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memset(tmp, 0, sizeof(*tmp));
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localusecnt++;
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ast_update_use_count();
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@ -135,8 +131,8 @@ lintoulaw_new (void)
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return (struct ast_translator_pvt *)tmp;
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}
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/*
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* ulawToLin_FrameIn
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/*!
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* \brief ulawToLin_FrameIn
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* Fill an input buffer with packed 4-bit ulaw values if there is room
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* left.
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*
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@ -147,8 +143,7 @@ lintoulaw_new (void)
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* tmp->tail is the number of packed values in the buffer.
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*/
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static int
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ulawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
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static int ulawtolin_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
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{
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struct ulaw_decoder_pvt *tmp = (struct ulaw_decoder_pvt *)pvt;
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int x;
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@ -176,14 +171,15 @@ ulawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
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for (x=0;x<f->datalen;x++)
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tmp->outbuf[tmp->tail + x] = AST_MULAW(b[x]);
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if(useplc) plc_rx(&tmp->plc, tmp->outbuf+tmp->tail, f->datalen);
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if(useplc)
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plc_rx(&tmp->plc, tmp->outbuf+tmp->tail, f->datalen);
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tmp->tail += f->datalen;
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return 0;
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}
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/*
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* ulawToLin_FrameOut
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/*!
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* \brief ulawToLin_FrameOut
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* Convert 4-bit ulaw encoded signals to 16-bit signed linear.
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*
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* Results:
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@ -194,8 +190,7 @@ ulawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
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* None.
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*/
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static struct ast_frame *
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ulawtolin_frameout (struct ast_translator_pvt *pvt)
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static struct ast_frame *ulawtolin_frameout(struct ast_translator_pvt *pvt)
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{
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struct ulaw_decoder_pvt *tmp = (struct ulaw_decoder_pvt *)pvt;
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@ -214,8 +209,8 @@ ulawtolin_frameout (struct ast_translator_pvt *pvt)
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return &tmp->f;
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}
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/*
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* LinToulaw_FrameIn
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/*!
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* \brief LinToulaw_FrameIn
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* Fill an input buffer with 16-bit signed linear PCM values.
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*
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* Results:
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@ -225,14 +220,12 @@ ulawtolin_frameout (struct ast_translator_pvt *pvt)
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* tmp->tail is number of signal values in the input buffer.
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*/
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static int
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lintoulaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
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static int lintoulaw_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
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{
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struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *)pvt;
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int x;
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short *s;
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if (tmp->tail + f->datalen/2 >= sizeof(tmp->outbuf))
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{
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if (tmp->tail + f->datalen / 2 >= sizeof(tmp->outbuf)) {
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ast_log(LOG_WARNING, "Out of buffer space\n");
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return -1;
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}
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@ -243,8 +236,8 @@ lintoulaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
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return 0;
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}
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/*
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* LinToulaw_FrameOut
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/*!
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* \brief LinToulaw_FrameOut
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* Convert a buffer of raw 16-bit signed linear PCM to a buffer
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* of 4-bit ulaw packed two to a byte (Big Endian).
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*
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@ -255,8 +248,7 @@ lintoulaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
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* Leftover inbuf data gets packed, tail gets updated.
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*/
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static struct ast_frame *
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lintoulaw_frameout (struct ast_translator_pvt *pvt)
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static struct ast_frame *lintoulaw_frameout(struct ast_translator_pvt *pvt)
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{
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struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *)pvt;
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@ -271,16 +263,16 @@ lintoulaw_frameout (struct ast_translator_pvt *pvt)
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tmp->f.datalen = tmp->tail;
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tmp->tail = 0;
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return &tmp->f;
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} else return NULL;
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} else
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return NULL;
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}
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/*
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* ulawToLin_Sample
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/*!
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* \brief ulawToLin_Sample
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*/
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static struct ast_frame *
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ulawtolin_sample (void)
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static struct ast_frame *ulawtolin_sample(void)
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{
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static struct ast_frame f;
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f.frametype = AST_FRAME_VOICE;
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@ -294,12 +286,11 @@ ulawtolin_sample (void)
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return &f;
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}
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/*
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* LinToulaw_Sample
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/*!
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* \brief LinToulaw_Sample
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*/
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static struct ast_frame *
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lintoulaw_sample (void)
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static struct ast_frame *lintoulaw_sample(void)
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{
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static struct ast_frame f;
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f.frametype = AST_FRAME_VOICE;
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@ -314,8 +305,8 @@ lintoulaw_sample (void)
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return &f;
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}
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/*
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* ulaw_Destroy
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/*!
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* \brief ulaw_Destroy
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* Destroys a private workspace.
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*
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* Results:
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@ -325,16 +316,15 @@ lintoulaw_sample (void)
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* None.
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*/
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static void
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ulaw_destroy (struct ast_translator_pvt *pvt)
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static void ulaw_destroy(struct ast_translator_pvt *pvt)
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{
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free(pvt);
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localusecnt--;
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ast_update_use_count();
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}
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/*
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* The complete translator for ulawToLin.
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/*!
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* \brief The complete translator for ulawToLin.
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*/
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static struct ast_translator ulawtolin = {
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@ -349,8 +339,8 @@ static struct ast_translator ulawtolin = {
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ulawtolin_sample
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};
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/*
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* The complete translator for LinToulaw.
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/*!
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* \brief The complete translator for LinToulaw.
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*/
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static struct ast_translator lintoulaw = {
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@ -365,8 +355,7 @@ static struct ast_translator lintoulaw = {
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lintoulaw_sample
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};
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static void
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parse_config(void)
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static void parse_config(void)
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{
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struct ast_config *cfg;
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struct ast_variable *var;
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@ -385,16 +374,13 @@ parse_config(void)
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}
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}
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int
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reload(void)
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int reload(void)
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{
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parse_config();
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return 0;
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}
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int
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unload_module (void)
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int unload_module(void)
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{
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int res;
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ast_mutex_lock(&localuser_lock);
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@ -407,8 +393,7 @@ unload_module (void)
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return res;
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}
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int
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load_module (void)
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int load_module(void)
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{
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int res;
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parse_config();
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@ -424,22 +409,19 @@ load_module (void)
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* Return a description of this module.
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*/
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char *
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description (void)
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char *description(void)
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{
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return tdesc;
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}
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int
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usecount (void)
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int usecount(void)
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{
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int res;
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STANDARD_USECOUNT(res);
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return res;
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}
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char *
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key ()
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char *key()
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{
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return ASTERISK_GPL_KEY;
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}
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