Move main() outside atrac3.c and create atrac3.h

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22307 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 80 insertions, 0 deletions

diff --git a/apps/codecs/libatrac/atrac3.h b/apps/codecs/libatrac/atrac3.h
new file mode 100644
index 0000000000..e4121d7b4e
--- /dev/null
+++ b/apps/codecs/libatrac/atrac3.h
@@ -0,0 +1,80 @@
+#include "bitstream.h"
+#include "../librm/rm.h"
+
+/* These structures are needed to store the parsed gain control data. */
+typedef struct {
+    int   num_gain_data;
+    int   levcode[8];
+    int   loccode[8];
+} gain_info;
+
+typedef struct {
+    gain_info   gBlock[4];
+} gain_block;
+
+typedef struct {
+    int     pos;
+    int     numCoefs;
+    int32_t coef[8];
+} tonal_component;
+
+typedef struct {
+    int               bandsCoded;
+    int               numComponents;
+    tonal_component   components[64];
+    int32_t           prevFrame[1024];
+    int               gcBlkSwitch;
+    gain_block        gainBlock[2];
+
+    int32_t           spectrum[1024] __attribute__((aligned(16)));
+    int32_t           IMDCT_buf[1024] __attribute__((aligned(16)));
+
+    int32_t           delayBuf1[46]; ///<qmf delay buffers
+    int32_t           delayBuf2[46];
+    int32_t           delayBuf3[46];
+} channel_unit;
+
+typedef struct {
+    GetBitContext       gb;
+    //@{
+    /** stream data */
+    int                 channels;
+    int                 codingMode;
+    int                 bit_rate;
+    int                 sample_rate;
+    int                 samples_per_channel;
+    int                 samples_per_frame;
+
+    int                 bits_per_frame;
+    int                 bytes_per_frame;
+    int                 pBs;
+    channel_unit*       pUnits;
+    //@}
+    //@{
+    /** joint-stereo related variables */
+    int                 matrix_coeff_index_prev[4];
+    int                 matrix_coeff_index_now[4];
+    int                 matrix_coeff_index_next[4];
+    int                 weighting_delay[6];
+    //@}
+    //@{
+    /** data buffers */
+    int32_t             outSamples[2048];
+    uint8_t             decoded_bytes_buffer[1024];
+    int32_t             tempBuf[1070];
+    //@}
+    //@{
+    /** extradata */
+    int                 atrac3version;
+    int                 delay;
+    int                 scrambled_stream;
+    int                 frame_factor;
+    //@}
+} ATRAC3Context;
+
+int atrac3_decode_init(ATRAC3Context *q, RMContext *rmctx);
+
+int atrac3_decode_frame(RMContext *rmctx, ATRAC3Context *q,
+                        void *data, int *data_size, 
+                        const uint8_t *buf, int buf_size);
+