Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

2026-07-06 11:30:13 +08:00
commit e76462eeb7
3451 changed files with 1415300 additions and 0 deletions
--- a/sdk/lib/audio/ring_buffer/ring_buffer.c
+++ b/sdk/lib/audio/ring_buffer/ring_buffer.c
@@ -0,0 +1,148 @@
+#include "basic_include.h"
+#include "lib/audio/ring_buffer/ring_buffer.h"
+#include "lib/heap/av_psram_heap.h"
+
+RINGBUF *ringbuf_Init(uint8_t elementsize, uint32_t elementcount)
+{
+    RINGBUF *ringbuf = (RINGBUF*)av_psram_zalloc(sizeof(RINGBUF));
+    if(ringbuf == NULL) {
+        return NULL;
+	}
+    ringbuf->front = 0;
+    ringbuf->rear = 0;
+    ringbuf->elementsize = elementsize;
+    ringbuf->elementcount = elementcount + 1;
+    ringbuf->data = av_psram_malloc(elementsize * (elementcount + 1) * sizeof(uint8_t));
+    if(ringbuf->data == NULL) {
+        av_psram_free(ringbuf);
+        ringbuf = NULL;
+    }
+    return ringbuf;
+}
+
+int32_t ringbuf_read_available(RINGBUF *ringbuf)
+{
+    if(ringbuf == NULL) {
+        return 0;
+    } 
+    return ((ringbuf->rear + ringbuf->elementcount - ringbuf->front) % ringbuf->elementcount);
+}
+
+int32_t ringbuf_write_available(RINGBUF *ringbuf)
+{
+    if(ringbuf == NULL) {
+        return 0;
+    } 
+	return ((ringbuf->front + ringbuf->elementcount - ringbuf->rear - 1) % ringbuf->elementcount);   
+}
+
+int32_t ringbuf_read(RINGBUF *ringbuf, void *data, uint32_t elementcount)
+{
+    uint32_t readcount = 0;
+    if(ringbuf == NULL) {
+        return 0;
+    }  
+    if(ringbuf->front == ringbuf->rear) {
+        return 0;        
+    }
+    if(elementcount > (uint32_t)ringbuf_read_available(ringbuf)) {
+        readcount = (uint32_t)ringbuf_read_available(ringbuf);
+	}
+    else {
+        readcount = elementcount;
+	}
+    if((ringbuf->front + readcount) > (ringbuf->elementcount))
+	{
+		os_memcpy((uint8_t*)data, ringbuf->data + ringbuf->front * ringbuf->elementsize, 
+                 (ringbuf->elementcount - ringbuf->front) * ringbuf->elementsize);
+		os_memcpy(((uint8_t*)data) + (ringbuf->elementcount - ringbuf->front) * ringbuf->elementsize, 
+                 ringbuf->data, (readcount - ringbuf->elementcount + ringbuf->front) * ringbuf->elementsize);		
+	}
+	else {
+		os_memcpy((uint8_t*)data, ringbuf->data + ringbuf->front * ringbuf->elementsize, readcount * ringbuf->elementsize);	
+	}
+	ringbuf->front = (ringbuf->front + readcount) % (ringbuf->elementcount);
+    return readcount;
+}
+
+int32_t ringbuf_write(RINGBUF *ringbuf, void *data, uint32_t elementcount)
+{
+    uint32_t writecount = 0;
+    if(ringbuf == NULL) {
+        return 0;
+    }
+    if(elementcount > (uint32_t)ringbuf_write_available(ringbuf)) {
+        writecount = (uint32_t)ringbuf_write_available(ringbuf);
+	}
+    else {
+        writecount = elementcount;
+	}
+	if((ringbuf->rear + writecount) > (ringbuf->elementcount))
+	{
+		os_memcpy(ringbuf->data + ringbuf->rear * ringbuf->elementsize, (uint8_t*)data, 
+                 (ringbuf->elementcount - ringbuf->rear) * ringbuf->elementsize);
+		os_memcpy(ringbuf->data, ((uint8_t*)data) + (ringbuf->elementcount - ringbuf->rear) * ringbuf->elementsize, 
+                 (writecount - ringbuf->elementcount + ringbuf->rear) * ringbuf->elementsize);
+	}
+	else {
+		os_memcpy(ringbuf->data + ringbuf->rear * ringbuf->elementsize, (uint8_t*)data, writecount * ringbuf->elementsize);
+	}
+    ringbuf->rear = (ringbuf->rear + writecount) % (ringbuf->elementcount);  
+    return writecount; 
+}
+
+int32_t ringbuf_move_readptr(RINGBUF *ringbuf, int32_t elementcount)
+{
+    uint32_t read_avable = ringbuf_read_available(ringbuf);
+    if(read_avable < elementcount) {
+        ringbuf->front = (ringbuf->front + read_avable) % (ringbuf->elementcount);
+        return read_avable;
+    }
+    else {
+        ringbuf->front = (ringbuf->front + elementcount) % (ringbuf->elementcount);
+        return elementcount;
+    }
+}
+
+int32_t ringbuf_read_nomove(RINGBUF *ringbuf, void *data, uint32_t elementcount)
+{
+    uint32_t readcount = 0;
+    if(ringbuf == NULL) {
+        return 0;
+    }  
+    if(ringbuf->front == ringbuf->rear) {
+        return 0;        
+    }
+    if(elementcount > (uint32_t)ringbuf_read_available(ringbuf)) {
+        readcount = (uint32_t)ringbuf_read_available(ringbuf);
+	}
+    else {
+        readcount = elementcount;
+	}
+    if((ringbuf->front + readcount) > (ringbuf->elementcount))
+	{
+		os_memcpy((uint8_t*)data, ringbuf->data + ringbuf->front * ringbuf->elementsize, 
+                 (ringbuf->elementcount - ringbuf->front) * ringbuf->elementsize);
+		os_memcpy(((uint8_t*)data) + (ringbuf->elementcount - ringbuf->front) * ringbuf->elementsize, 
+                 ringbuf->data, (readcount - ringbuf->elementcount + ringbuf->front) * ringbuf->elementsize);		
+	}
+	else {
+		os_memcpy((uint8_t*)data, ringbuf->data + ringbuf->front * ringbuf->elementsize, readcount * ringbuf->elementsize);	
+	}
+    return readcount;    
+}
+
+void ringbuf_clean(RINGBUF *ringbuf)
+{
+    ringbuf->front = 0;
+    ringbuf->rear = 0;    
+}
+
+void ringbuf_del(RINGBUF *ringbuf)
+{
+    if(ringbuf == NULL) {
+        return;
+    } 
+    av_psram_free(ringbuf->data);
+    av_psram_free(ringbuf);
+}