800*320工程文件+初始demo提交

SW/components/modules/audio/audio_encoder.h

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+#ifndef _AUDIO_ENCODER_H
+#define _AUDIO_ENCODER_H
+
+#include <stdint.h>
+
+#include "co_list.h"
+#include "codec.h"
+#include "resample.h"
+
+#include "audio_common.h"
+
+typedef struct {
+    struct co_list_hdr hdr;
+    
+    uint16_t length;
+    uint8_t data[];
+} audio_encoder_frame_t;
+
+typedef struct {
+    audio_type_t type;
+    uint8_t channels;
+    uint32_t sample_rate;
+    
+    void *encoder;
+    void *resampler;
+    
+    uint8_t frame_count;
+    uint16_t frame_max_length;
+    struct co_list frame_list;
+    audio_encoder_frame_t *frame_tmp;
+} audio_encoder_t;
+
+/************************************************************************************
+ * @fn      audio_encoder_init
+ *
+ * @brief   Init audio encoder module.
+ *
+ * @param   type: audio encoder type.
+ *          channels: mono or stereo.
+ *          sample_rate: input PCM sample rate.
+ *          frame_max_length: 
+ *          param: decoder parameter.
+ *
+ * @return  audio encoder handler, NULL will be returned when executation is failed.
+ */
+audio_encoder_t *audio_encoder_init(audio_type_t type, uint8_t channels, uint32_t sample_rate, uint16_t frame_max_length, void *param);
+
+/************************************************************************************
+ * @fn      audio_encoder_destroy
+ *
+ * @brief   destroy created audio encoder module.
+ *
+ * @param   encoder: encoder handler.
+ */
+void audio_encoder_destroy(audio_encoder_t *encoder);
+
+/************************************************************************************
+ * @fn      audio_encoder_encode
+ *
+ * @brief   encode input PCM data.
+ *
+ * @param   encoder: encoder handler.
+ *          buffer: PCM buffer.
+ *          length: size of input PCM data, unit is bytes.
+ *          channels: mono or stereo of input PCM data
+ *          sample_rate: sample rate of input PCM data.
+ *
+ * @return  encoder result, @ref audio_ret_t.
+ */
+int audio_encoder_encode(audio_encoder_t *encoder, const uint8_t *buffer, uint32_t length, uint8_t channels, uint32_t sample_rate);
+
+/************************************************************************************
+ * @fn      audio_encoder_get_frame_count
+ *
+ * @brief   Get the number of frames are stored in encoder module.
+ *
+ * @param   encoder: encoder handler.
+ *
+ * @return  the number of frames are stored in encoder module.
+ */
+int audio_encoder_get_frame_count(audio_encoder_t *encoder);
+
+/************************************************************************************
+ * @fn      audio_encoder_frame_pop
+ *
+ * @brief   Get the head of frames stored in encoder module.
+ *
+ * @param   encoder: encoder handler.
+ *
+ * @return  the head of frames stored in encoder module.
+ */
+audio_encoder_frame_t *audio_encoder_frame_pop(audio_encoder_t *encoder);
+
+/************************************************************************************
+ * @fn      audio_encoder_frame_release
+ *
+ * @brief   Release encoded frame.
+ *
+ * @param   frame: frame to be released.
+ */
+void audio_encoder_frame_release(audio_encoder_frame_t *frame);
+
+#endif  //_AUDIO_ENCODER_H