travail sur l'ac3_decoder : debut de separation de ce qui est specifique a
videolan (ac3_decoder_thread) et de ce qui ne l'est pas. Ce n'est pas encore
ideal, la partie "videolan" fait des inits a l'interieur de la partie
"ac3"... il faudra que je fasse une belle interface pour ca.

Le probleme des includes n'est pas non plus regle, mais c'est a cause des
bit_streams :) patience.

Makefile

@@ -201,7 +201,8 @@ video_output_obj = 		video_output/video_output.o \
 						video_output/video_text.o \
 						video_output/video_yuv.o
 
-ac3_decoder_obj =		ac3_decoder/ac3_decoder.o \
+ac3_decoder_obj =		ac3_decoder/ac3_decoder_thread.o \
+						ac3_decoder/ac3_decoder.o \
 						ac3_decoder/ac3_parse.o \
 						ac3_decoder/ac3_exponent.o \
 						ac3_decoder/ac3_bit_allocate.o \

include/ac3_decoder.h

@@ -325,22 +325,16 @@ typedef struct stream_samples_s
 typedef s16 ac3dec_frame_t[ AC3DEC_FRAME_SIZE ];
 
 /*****************************************************************************
- * ac3dec_thread_t : ac3 decoder thread descriptor
+ * ac3dec_t : ac3 decoder descriptor
  *****************************************************************************/
-typedef struct ac3dec_thread_s
+typedef struct ac3dec_s
 {
-    /*
-     * Thread properties
-     */
-    vlc_thread_t        thread_id;                /* id for thread functions */
-    boolean_t           b_die;                                 /* `die' flag */
-    boolean_t           b_error;                             /* `error' flag */
     boolean_t           b_invalid;                         /* `invalid' flag */
 
     /*
      * Input properties
      */
-    decoder_fifo_t      fifo;                  /* stores the PES stream data */
+
     /* The bit stream structure handles the PES stream at the bit level */
     bit_stream_t        bit_stream;
 
@@ -356,16 +350,6 @@ typedef struct ac3dec_thread_s
     stream_coeffs_t     coeffs;
     stream_samples_t    samples;
 
-    /*
-     * Output properties
-     */
-    aout_fifo_t *       p_aout_fifo; /* stores the decompressed audio frames */
-    aout_thread_t *     p_aout;           /* needed to create the audio fifo */
-
-} ac3dec_thread_t;
+} ac3dec_t;
 
-/*****************************************************************************
- * Prototypes
- *****************************************************************************/
-ac3dec_thread_t *       ac3dec_CreateThread( input_thread_t * p_input );
-void                    ac3dec_DestroyThread( ac3dec_thread_t * p_ac3dec );
+int ac3_audio_block (ac3dec_t * p_ac3dec, s16 * buffer);

include/ac3_decoder_thread.h

+/*****************************************************************************
+ * ac3_decoder.h : ac3 decoder thread interface
+ * (c)1999 VideoLAN
+ *****************************************************************************/
+
+/*****************************************************************************
+ * ac3dec_thread_t : ac3 decoder thread descriptor
+ *****************************************************************************/
+typedef struct ac3dec_thread_s
+{
+    /*
+     * Thread properties
+     */
+    vlc_thread_t        thread_id;                /* id for thread functions */
+    boolean_t           b_die;                                 /* `die' flag */
+    boolean_t           b_error;                             /* `error' flag */
+
+    /*
+     * Input properties
+     */
+    decoder_fifo_t      fifo;                  /* stores the PES stream data */
+
+    /*
+     * Decoder properties
+     */
+
+    ac3dec_t            ac3_decoder;
+
+    /*
+     * Output properties
+     */
+    aout_fifo_t *       p_aout_fifo; /* stores the decompressed audio frames */
+    aout_thread_t *     p_aout;           /* needed to create the audio fifo */
+
+} ac3dec_thread_t;
+
+/*****************************************************************************
+ * Prototypes
+ *****************************************************************************/
+ac3dec_thread_t *       ac3dec_CreateThread( input_thread_t * p_input );
+void                    ac3dec_DestroyThread( ac3dec_thread_t * p_ac3dec );

src/ac3_decoder/ac3_bit_allocate.c

@@ -202,7 +202,7 @@ static __inline__ s16 calc_lowcomp( s16 a, s16 b0, s16 b1, s16 bin )
 	return(a);
 }
 
-void bit_allocate( ac3dec_thread_t * p_ac3dec )
+void bit_allocate( ac3dec_t * p_ac3dec )
 {
 	u16 i;
 	s16 fgain;

src/ac3_decoder/ac3_bit_allocate.h

-void bit_allocate( ac3dec_thread_t * );
+void bit_allocate( ac3dec_t * );

src/ac3_decoder/ac3_downmix.c

@@ -42,7 +42,7 @@ static float smixlev_lut[4] = { 0.2928, 0.2071, 0.0   , 0.2071 };
  * to reduce complexity. Realistically, there aren't many machines around
  * with > 2 channel output anyways */
 
-void downmix( ac3dec_thread_t * p_ac3dec, s16 * out_buf )
+void downmix( ac3dec_t * p_ac3dec, s16 * out_buf )
 {
 	int j;
 	float right_tmp;

src/ac3_decoder/ac3_downmix.h

-void downmix( ac3dec_thread_t *, s16 * );
+void downmix( ac3dec_t *, s16 * );

src/ac3_decoder/ac3_exponent.c

@@ -29,7 +29,7 @@ static const s16 exps_2[128] = { -2, -2, -2, -2, -2, -1, -1, -1, -1, -1, 0, 0, 0
 
 static const s16 exps_3[128] = { -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0 };
 
-static __inline__ void exp_unpack_ch( ac3dec_thread_t * p_ac3dec, u16 type, u16 expstr, u16 ngrps, u16 initial_exp, u16 exps[], u16 * dest )
+static __inline__ void exp_unpack_ch( ac3dec_t * p_ac3dec, u16 type, u16 expstr, u16 ngrps, u16 initial_exp, u16 exps[], u16 * dest )
 {
 	u16 i,j;
 	s16 exp_acc;
@@ -118,7 +118,7 @@ static __inline__ void exp_unpack_ch( ac3dec_thread_t * p_ac3dec, u16 type, u16
 	}
 }
 
-void exponent_unpack( ac3dec_thread_t * p_ac3dec )
+void exponent_unpack( ac3dec_t * p_ac3dec )
 {
 	u16 i;
 

src/ac3_decoder/ac3_exponent.h

@@ -2,4 +2,4 @@
 #define UNPACK_CPL  2
 #define UNPACK_LFE  4
 
-void exponent_unpack( ac3dec_thread_t * );
+void exponent_unpack( ac3dec_t * );

src/ac3_decoder/ac3_imdct.c

-#include <unistd.h>                                              /* getpid() */
-
 #include <math.h>
-
-#include <stdio.h>                                           /* "intf_msg.h" */
-#include <stdlib.h>                                      /* malloc(), free() */
-#include <sys/soundcard.h>                               /* "audio_output.h" */
-#include <sys/types.h>
 #include <sys/uio.h>                                            /* "input.h" */
 
 #include "common.h"
 #include "config.h"
-#include "mtime.h"
 #include "vlc_thread.h"
-#include "debug.h"                                      /* "input_netlist.h" */
-
-#include "intf_msg.h"                        /* intf_DbgMsg(), intf_ErrMsg() */
-
-#include "input.h"                                           /* pes_packet_t */
-#include "input_netlist.h"                         /* input_NetlistFreePES() */
-#include "decoder_fifo.h"         /* DECODER_FIFO_(ISEMPTY|START|INCSTART)() */
-
+#include "mtime.h"
+#include "input.h"
+#include "decoder_fifo.h"
 #include "audio_output.h"
-
 #include "ac3_decoder.h"
 #include "ac3_imdct.h"
 
@@ -185,7 +171,7 @@ void imdct_init(void)
 	}
 }
 
-void imdct( ac3dec_thread_t * p_ac3dec )
+void imdct( ac3dec_t * p_ac3dec )
 {
 	int i;
 

src/ac3_decoder/ac3_imdct.h

-void imdct( ac3dec_thread_t * p_ac3dec );
+void imdct( ac3dec_t * p_ac3dec );
 void imdct_init( void );

src/ac3_decoder/ac3_mantissa.c

@@ -101,7 +101,7 @@ static float exp_lut[ 25 ] =
 };
 
 /* Fetch an unpacked, left justified, and properly biased/dithered mantissa value */
-static __inline__ float float_get( ac3dec_thread_t * p_ac3dec, u16 bap, u16 exp )
+static __inline__ float float_get( ac3dec_t * p_ac3dec, u16 bap, u16 exp )
 {
 	u32 group_code;
 
@@ -217,7 +217,7 @@ static __inline__ float float_get( ac3dec_thread_t * p_ac3dec, u16 bap, u16 exp
 	}
 }
 
-static __inline__ void uncouple_channel( ac3dec_thread_t * p_ac3dec, u32 ch )
+static __inline__ void uncouple_channel( ac3dec_t * p_ac3dec, u32 ch )
 {
 	u32 bnd = 0;
 	u32 i,j;
@@ -247,7 +247,7 @@ static __inline__ void uncouple_channel( ac3dec_thread_t * p_ac3dec, u32 ch )
 	}
 }
 
-void mantissa_unpack( ac3dec_thread_t * p_ac3dec )
+void mantissa_unpack( ac3dec_t * p_ac3dec )
 {
 	int i, j;
 

src/ac3_decoder/ac3_mantissa.h

-void mantissa_unpack( ac3dec_thread_t * );
+void mantissa_unpack( ac3dec_t * );

src/ac3_decoder/ac3_parse.c

@@ -70,7 +70,7 @@ static struct frmsize_s frmsizecod_tbl[] = {
       { 640 ,{1280 ,1394 ,1920 } }};
 
 /* Parse a syncinfo structure, minus the sync word */
-void parse_syncinfo( ac3dec_thread_t * p_ac3dec )
+void parse_syncinfo( ac3dec_t * p_ac3dec )
 {
         /* Get crc1 - we don't actually use this data though */
 	NeedBits( &(p_ac3dec->bit_stream), 16 );
@@ -100,7 +100,7 @@ void parse_syncinfo( ac3dec_thread_t * p_ac3dec )
 /*
  * This routine fills a bsi struct from the AC3 stream
  */
-void parse_bsi( ac3dec_thread_t * p_ac3dec )
+void parse_bsi( ac3dec_t * p_ac3dec )
 {
 	u32 i;
 
@@ -336,7 +336,7 @@ void parse_bsi( ac3dec_thread_t * p_ac3dec )
 }
 
 /* More pain inducing parsing */
-void parse_audblk( ac3dec_thread_t * p_ac3dec )
+void parse_audblk( ac3dec_t * p_ac3dec )
 {
 	int i, j;
 
@@ -861,7 +861,7 @@ void parse_audblk( ac3dec_thread_t * p_ac3dec )
 	}
 }
 
-void parse_auxdata( ac3dec_thread_t * p_ac3dec )
+void parse_auxdata( ac3dec_t * p_ac3dec )
 {
 	int i;
 	int skip_length;

src/ac3_decoder/ac3_parse.h

-void parse_syncinfo( ac3dec_thread_t * );
-void parse_bsi( ac3dec_thread_t * );
-void parse_audblk( ac3dec_thread_t * );
-void parse_auxdata( ac3dec_thread_t * );
+void parse_syncinfo( ac3dec_t * );
+void parse_bsi( ac3dec_t * );
+void parse_audblk( ac3dec_t * );
+void parse_auxdata( ac3dec_t * );

src/ac3_decoder/ac3_rematrix.c

@@ -42,7 +42,7 @@ static __inline__ u32 min( u32 a, u32 b )
 
 /* This routine simply does stereo rematixing for the 2 channel
  * stereo mode */
-void rematrix( ac3dec_thread_t * p_ac3dec )
+void rematrix( ac3dec_t * p_ac3dec )
 {
 	u32 num_bands;
 	u32 start;

src/ac3_decoder/ac3_rematrix.h

-void rematrix( ac3dec_thread_t * );
+void rematrix( ac3dec_t * );

src/input/input.c

@@ -48,6 +48,7 @@
 #include "video_parser.h"
 
 #include "ac3_decoder.h"
+#include "ac3_decoder_thread.h"
 #include "spu_decoder.h"
 
 #include "main.h"

src/input/input_ctrl.c

@@ -34,6 +34,7 @@
 #include "audio_output.h"
 #include "audio_decoder.h"
 #include "ac3_decoder.h"
+#include "ac3_decoder_thread.h"
 
 #include "video.h"
 #include "video_output.h"