GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/gmp/include/xmedia_audio_codec_mp3.h

@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) XMEDIA. All rights reserved.
+ */
+#ifndef _AUDIO_CODEC_MP3_H_
+#define _AUDIO_CODEC_MP3_H_
+
+#include "xmedia_type.h"
+#include "xmedia_audio_codec.h"
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif
+#endif /* End of #ifdef __cplusplus */
+
+/*samples per frame for MP3LC and MP3Plus */
+#define MP3_SAMPLES_PER_FRAME   1152
+
+/*max length of MP3 stream by bytes */
+#define MAX_MP3_MAINBUF_SIZE    1152 * 2
+
+typedef enum
+{
+    MP3_BPS_8K  = 8000,
+    MP3_BPS_16K = 16000,
+    MP3_BPS_24K = 24000,
+    MP3_BPS_32K = 32000,
+    MP3_BPS_40K = 40000,
+    MP3_BPS_48K = 48000,
+    MP3_BPS_56K = 56000,
+    MP3_BPS_64K = 64000,
+    MP3_BPS_80K = 80000,
+    MP3_BPS_96K = 96000,
+    MP3_BPS_112K = 112000,
+    MP3_BPS_128K = 128000,
+    MP3_BPS_144K = 144000,
+    MP3_BPS_160K = 160000,
+    MP3_BPS_192K = 192000,
+    MP3_BPS_224K = 224000,
+    MP3_BPS_256K = 256000,
+    MP3_BPS_320K = 320000,
+    MP3_BPS_MAX
+} mp3_bps;
+
+typedef enum
+{
+  MP3_VBR_OFF=0,
+  MP3_VBR_MT,               /* obsolete, same as vbr_mtrh */
+  MP3_VBR_RH,
+  MP3_VBR_ABR,
+  MP3_VBR_MTRH,
+  MP3_VBR_MAX_INDICATOR,    /* Don't use this! It's used for sanity checks.       */
+  MP3_VBR_DEFAULT=MP3_VBR_MTRH    /* change this to change the default VBR mode of LAME */
+} mp3_vbr_mode;
+
+typedef struct
+{
+    /*vbr_off for constant bitrate
+      vbr_abr for variable bitrate abr mode
+      vbr_default for variable bitrate vbr mode
+    */
+    mp3_vbr_mode mode;
+    /* quality setting 0..9., default is 7
+       0 = slowest algorithms, but potentially highest quality
+       9 = faster algorithms, very poor quality
+    */
+    xmedia_u32 quality;
+    /*
+      MPEG-1   layer III sample frequencies (kHz):  32  48  44.1
+      bitrates (kbps): 32 40 48 56 64 80 96 112 128 160 192 224 256 320
+      MPEG-2   layer III sample frequencies (kHz):  16  24  22.05
+      bitrates (kbps):  8 16 24 32 40 48 56 64 80 96 112 128 144 160
+      MPEG-2.5 layer III sample frequencies (kHz):   8  12  11.025
+      bitrates (kbps):  8 16 24 32 40 48 56 64
+      The bitrate to be used.  Default is 128kbps in MPEG1 (64 for mono),
+      64kbps in MPEG2 (32 for mono) and 32kbps in MPEG2.5 (16 for mono).
+   */
+    mp3_bps bit_rate;
+    xmedia_s32 bit_per_sample;
+    xmedia_u32 channels;
+    xmedia_u32 sample_rate;
+} mp3_encoder_config;
+
+typedef struct
+{
+    xmedia_void* reversed;
+} mp3_decoder_config;
+
+#define mp3_enc_get_default_config(config) \
+    do { \
+        ((mp3_encoder_config *)(config))->quality = 7; \
+        ((mp3_encoder_config *)(config))->bit_rate = MP3_BPS_128K; \
+        ((mp3_encoder_config *)(config))->sample_rate = 48000; \
+        ((mp3_encoder_config *)(config))->channels  = 2; \
+        ((mp3_encoder_config *)(config))->bit_per_sample  = 16; \
+        ((mp3_encoder_config *)(config))->mode = MP3_VBR_OFF; \
+    } while (0)
+
+#define mp3_enc_get_default_param(open_param, private_config) \
+    do { \
+        xmedia_u32 in_sample_per_frame = 1152; \
+        ((encoder_param *)(open_param))->channels = \
+            ((mp3_encoder_config *)private_config)->channels; \
+        ((encoder_param *)(open_param))->interleaved = XMEDIA_TRUE; \
+        ((encoder_param *)(open_param))->bit_per_sample = \
+            ((mp3_encoder_config *)private_config)->bit_per_sample; \
+        ((encoder_param *)(open_param))->sample_rate = \
+            ((mp3_encoder_config *)private_config)->sample_rate; \
+        ((encoder_param *)(open_param))->sample_per_frame = in_sample_per_frame; \
+        ((encoder_param *)(open_param))->encoder_config = (xmedia_void *)private_config; \
+    } while (0)
+
+#define mp3_dec_get_default_config(config) \
+        do { \
+        } while (0)
+
+#define mp3_dec_get_default_param(open_param, private_config) \
+        do { \
+            ((decoder_param *)(open_param))->desired_out_channels = 2; \
+            ((decoder_param *)(open_param))->desired_out_samplerate = 48000; \
+            ((decoder_param *)(open_param))->bit_per_sample = 16; \
+            ((decoder_param *)(open_param))->interleaved  = XMEDIA_TRUE; \
+            ((decoder_param *)(open_param))->decoder_config = (xmedia_void *)private_config; \
+        } while (0)
+
+/*
+ *  函数功能：获取aac编码器句柄
+ *  函数参数：
+ *     无
+ *  返回值：
+ *     编码器入口句柄
+ */
+audio_encoder* xmedia_mp3_enc_get_handle(xmedia_void);
+
+/*
+ *  函数功能：获取mp3解码器句柄
+ *  函数参数：
+ *     无
+ *  返回值：
+ *     解码器入口句柄
+ */
+audio_decoder* xmedia_mp3_dec_get_handle(xmedia_void);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif /* End of #ifdef __cplusplus */
+
+#endif
+