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apps/common/audio/audio_plc.c

@@ -0,0 +1,138 @@
+/*
+ ************************************************************
+ *
+ *
+ *
+ ************************************************************
+ */
+#include "system/includes.h"
+#include "PLC.h"
+#include "os/os_api.h"
+#include "app_config.h"
+#include "audio_config.h"
+
+#if TCFG_ESCO_PLC
+
+//#define AUDIO_PLC_LOG_ENABLE
+#ifdef AUDIO_PLC_LOG_ENABLE
+#define PLC_LOG		y_printf
+#else
+#define PLC_LOG(...)
+#endif/*AUDIO_PLC_LOG_ENABLE*/
+
+enum {
+    PLC_STA_CLOSE = 0,
+    PLC_STA_OPEN,
+    PLC_STA_RUN,
+};
+
+
+#define PLC_FRAME_LEN	120
+typedef struct {
+    u8 state;
+    u8 repair;
+    u8 wideband;
+    OS_MUTEX mutex;
+    s16 *run_buf;
+} audio_plc_t;
+static audio_plc_t plc;
+
+int audio_plc_open(u16 sr)
+{
+    PLC_LOG("audio_plc_open:%d\n", sr);
+    memset((u8 *)&plc, 0, sizeof(audio_plc_t));
+    plc.run_buf	= malloc(PLC_query()); /*buf_size:1040*/
+    PLC_LOG("PLC_buf:%x,size:%d\n", plc.run_buf, PLC_query());
+    if (plc.run_buf) {
+        s8 err = PLC_init(plc.run_buf);
+        if (err) {
+            PLC_LOG("PLC_init err:%d", err);
+            free(plc.run_buf);
+            return -EINVAL;
+        }
+        os_mutex_create(&plc.mutex);
+        if (sr == 16000) {
+            plc.wideband = 1;
+        }
+        plc.state = PLC_STA_OPEN;
+    }
+    PLC_LOG("audio_plc_open succ\n");
+    return 0;
+}
+
+void audio_plc_run(s16 *data, u16 len, u8 repair)
+{
+    u16 repair_point, tmp_point;
+    s16 *p_in, *p_out;
+    p_in    = data;
+    p_out   = data;
+    tmp_point = len / 2;
+    u8 repair_flag = 0;
+
+    os_mutex_pend(&plc.mutex, 0);
+    if (plc.state == PLC_STA_CLOSE) {
+        os_mutex_post(&plc.mutex);
+        return;
+    }
+
+#if 0	//debug
+    static u16 repair_cnt = 0;
+    if (repair) {
+        repair_cnt++;
+        y_printf("[E%d]", repair_cnt);
+    } else {
+        repair_cnt = 0;
+    }
+    //printf("[%d]",point);
+#endif/*debug*/
+
+    repair_flag = repair;
+    if (plc.wideband) {
+        /*
+         *msbc plc deal
+         *如果上一帧是错误，则当前帧也要修复
+         */
+        if (plc.repair) {
+            repair_flag = 1;
+        }
+        plc.repair = repair;
+    }
+
+    while (tmp_point) {
+        repair_point = (tmp_point > PLC_FRAME_LEN) ? PLC_FRAME_LEN : tmp_point;
+        tmp_point = tmp_point - repair_point;
+        PLC_run(p_in, p_out, repair_point, repair_flag);
+        p_in  += repair_point;
+        p_out += repair_point;
+    }
+    os_mutex_post(&plc.mutex);
+}
+
+int audio_plc_close(void)
+{
+    PLC_LOG("audio_plc_close\n");
+    os_mutex_pend(&plc.mutex, 0);
+    plc.state = PLC_STA_CLOSE;
+    if (plc.run_buf) {
+        free(plc.run_buf);
+        plc.run_buf = NULL;
+    }
+    os_mutex_post(&plc.mutex);
+    PLC_LOG("audio_plc_close succ\n");
+    return 0;
+}
+#else
+int audio_plc_open(void)
+{
+    return 0;
+}
+
+void audio_plc_run(s16 *dat, u16 len, u8 repair_flag)
+{
+}
+
+int audio_plc_close()
+{
+    return 0;
+}
+#endif/*TCFG_ESCO_PLC*/