* input/input.c :

- Correction de deux bugs concernant le calcul de b_has_pts et d'une autre
variable de la structure pes (les masques utilis�s n'�taient pas les bons...
cons�quence imm�diate : la synchro ne voyait jamais de paquet dat�) ;
- Correction d'un bug de la m�thode de calcul de i_pts ;

* audio_decoder/audio_decoder.c :
- Autod�tection des dates en utilisant le champ i_pts fourni par la
synchro... le son � fr�quence variable adapt�e aux pertes de paquets TS et
autres probl�mes est d�sormais une r�alit� :-)

* audio_output/audio_output.c :
+ Rajout de la synchro :
- On attend si on est en avance ;
- On saute des frames si on est en retard ;
+ Ce n'est pas encore tout � fait �a, mais �a commence � prendre forme...
On dirait que le mini-server va trop vite, parce que l'audio est souvent
en retard... Polux ?

* Makefile :
- Modifications cosm�tiques ;

--
MaXX

Makefile

@@ -45,7 +45,6 @@ CCFLAGS += -D_GNU_SOURCE
 #CCFLAGS += -s -fargument-noalias-global -fexpensive-optimizations -ffast-math -funroll-loops -fomit-frame-pointer #-march=pentiumpro
 #(Uncomment -march=pentiumpro if it applies)
 
-
 #
 # C compiler flags: dependancies
 #

src/audio_decoder/audio_decoder.c

@@ -770,17 +770,6 @@ static int InitThread( adec_thread_t * p_adec )
     return( 0 );
 }
 
-#define UPDATE_INCREMENT( increment, integer ) \
-    if ( ((increment).l_remainder += (increment).l_euclidean_remainder) >= 0 ) \
-    { \
-        (integer) += (increment).l_euclidean_integer + 1; \
-        (increment).l_remainder -= (increment).l_euclidean_denominator; \
-    } \
-    else \
-    { \
-        (integer) += (increment).l_euclidean_integer; \
-    }
-
 /******************************************************************************
  * RunThread : audio decoder thread
  ******************************************************************************
@@ -793,11 +782,6 @@ static void RunThread( adec_thread_t * p_adec )
 //    int                 i_header;
 //    int                 i_framesize;
 //    int                 i_dummy;
-    s64                 s64_numerator;
-    s64                 s64_denominator;
-    /* The synchronization needs date and date_increment for the moment */
-    mtime_t             date = 0;
-    aout_increment_t    date_increment;
 
     intf_DbgMsg("adec debug: running audio decoder thread (%p) (pid == %i)\n", p_adec, getpid());
 
@@ -807,30 +791,6 @@ static void RunThread( adec_thread_t * p_adec )
         p_adec->b_error = 1;
     }
 
-    /* Initializing date_increment */
-    s64_denominator = (s64)p_adec->p_aout_fifo->l_rate;
-    switch ( (p_adec->bit_stream.fifo.buffer & ADEC_HEADER_LAYER_MASK) >> ADEC_HEADER_LAYER_SHIFT )
-    {
-        /* Layer 2 */
-        case 2:
-            s64_numerator = 1152 * 1000000;
-            break;
-
-        /* Layer 1 */
-        case 3:
-            s64_numerator = 384 * 1000000;
-            break;
-    }
-    date_increment.l_remainder = -(long)s64_denominator;
-    date_increment.l_euclidean_integer = 0;
-    while ( s64_numerator >= s64_denominator )
-    {
-        date_increment.l_euclidean_integer++;
-        s64_numerator -= s64_denominator;
-    }
-    date_increment.l_euclidean_remainder = (long)s64_numerator;
-    date_increment.l_euclidean_denominator = (long)s64_denominator;
-
     /* Audio decoder thread's main loop */
     while ( (!p_adec->b_die) && (!p_adec->b_error) )
     {
@@ -893,8 +853,15 @@ static void RunThread( adec_thread_t * p_adec )
                     {
                         pthread_mutex_lock( &p_adec->p_aout_fifo->data_lock );
                         /* Frame 1 */
-                        p_adec->p_aout_fifo->date[p_adec->p_aout_fifo->l_end_frame] = date; /* DECODER_FIFO_START(p_adec->fifo)->i_pts; */
-                        /* DECODER_FIFO_START(p_adec->fifo)->i_pts = LAST_MDATE; */
+                        if ( DECODER_FIFO_START(p_adec->fifo)->b_has_pts )
+                        {
+                            p_adec->p_aout_fifo->date[p_adec->p_aout_fifo->l_end_frame] = DECODER_FIFO_START(p_adec->fifo)->i_pts;
+                            DECODER_FIFO_START(p_adec->fifo)->b_has_pts = 0;
+                        }
+                        else
+                        {
+                            p_adec->p_aout_fifo->date[p_adec->p_aout_fifo->l_end_frame] = LAST_MDATE;
+                        }
                         p_adec->p_aout_fifo->l_end_frame = (p_adec->p_aout_fifo->l_end_frame + 1) & AOUT_FIFO_SIZE;
                         /* Frame 2 */
                         p_adec->p_aout_fifo->date[p_adec->p_aout_fifo->l_end_frame] = LAST_MDATE;
@@ -912,7 +879,6 @@ static void RunThread( adec_thread_t * p_adec )
                         p_adec->p_aout_fifo->date[p_adec->p_aout_fifo->l_end_frame] = LAST_MDATE;
                         p_adec->p_aout_fifo->l_end_frame = (p_adec->p_aout_fifo->l_end_frame + 1) & AOUT_FIFO_SIZE;
                         pthread_mutex_unlock( &p_adec->p_aout_fifo->data_lock );
-                        UPDATE_INCREMENT( date_increment, date )
                     }
                 }
                 break;

src/audio_output/audio_output.c

@@ -52,7 +52,7 @@ void aout_Thread_S16_Stereo     ( aout_thread_t * p_aout );
 void aout_Thread_U16_Stereo     ( aout_thread_t * p_aout );
 
 static __inline__ void InitializeIncrement( aout_increment_t * p_increment, long l_numerator, long l_denominator );
-static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo );
+static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo, mtime_t aout_date );
 
 /******************************************************************************
  * aout_Open
@@ -426,7 +426,7 @@ static __inline__ void InitializeIncrement( aout_increment_t * p_increment, long
 /******************************************************************************
  * NextFrame
  ******************************************************************************/
-static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo )
+static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo, mtime_t aout_date )
 {
     long l_units, l_rate;
 
@@ -453,14 +453,29 @@ static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo )
         }
     }
 
+    if ( aout_date < p_fifo->date[p_fifo->l_start_frame] )
+    {
+        fprintf(stderr, "+");
+        pthread_mutex_unlock( &p_fifo->data_lock );
+        return( -1 );
+    }
+
     /* We are looking for the next dated frame */
     while ( p_fifo->l_next_frame != p_fifo->l_end_frame )
     {
         if ( p_fifo->date[p_fifo->l_next_frame] != LAST_MDATE )
+        {
+            if ( aout_date < p_fifo->date[p_fifo->l_next_frame] )
             {
                 p_fifo->b_next_frame = 1;
                 break;
             }
+            else
+            {
+                fprintf(stderr, "-");
+                p_fifo->l_start_frame = p_fifo->l_next_frame;
+            }
+        }
         p_fifo->l_next_frame = (p_fifo->l_next_frame + 1) & AOUT_FIFO_SIZE;
     }
     if ( p_fifo->l_next_frame == p_fifo->l_end_frame )
@@ -603,7 +618,7 @@ void aout_Thread_S16_Stereo( aout_thread_t * p_aout )
                     {
                         if ( !p_aout->fifo[i_fifo].b_next_frame )
                         {
-                            if ( NextFrame(p_aout, &p_aout->fifo[i_fifo]) )
+                            if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + (mtime_t)((l_buffer >> p_aout->dsp.b_stereo) / p_aout->dsp.l_rate)) )
                             {
                                 break;
                             }
@@ -671,7 +686,7 @@ void aout_Thread_S16_Stereo( aout_thread_t * p_aout )
                     {
                         if ( !p_aout->fifo[i_fifo].b_next_frame )
                         {
-                            if ( NextFrame(p_aout, &p_aout->fifo[i_fifo]) )
+                            if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + (mtime_t)((l_buffer >> p_aout->dsp.b_stereo) / p_aout->dsp.l_rate)) )
                             {
                                 break;
                             }

src/input/input.c

@@ -322,7 +322,7 @@ static void ErrorThread( input_thread_t *p_input )
 /*******************************************************************************
  * EndThread: end the input thread
  *******************************************************************************/
-static void EndThread( input_thread_t *p_input )
+static void EndThread( input_thread_t * p_input )
 {
     int i_es_loop;
 
@@ -889,30 +889,27 @@ static __inline__ void input_DemuxPES( input_thread_t *p_input,
 
             default:
                 /* The PES header contains at least 3 more bytes: parse them */
-                p_pes->b_data_alignment = p_pes->p_pes_header[6] & 0x10;
-                p_pes->b_has_pts = p_pes->p_pes_header[7] & 0x4;
+                p_pes->b_data_alignment = p_pes->p_pes_header[6] & 0x04;
+                p_pes->b_has_pts = p_pes->p_pes_header[7] & 0x80;
                 i_pes_header_size = 9 + p_pes->p_pes_header[8];
 
                 /* Now parse the optional header extensions (in the limit of
                    the 14 bytes */
                 if( p_pes->b_has_pts )
                 {
-                    pcr_descriptor_t *p_pcr;
-                    /* The PTS field is split in 3 bit records. We have to add
-                       them, and thereafter we substract the 2 marker_bits */
+                    pcr_descriptor_t * p_pcr;
 
                     p_pcr = p_input->p_pcr;
                     pthread_mutex_lock( &p_pcr->lock );
                     if( p_pcr->delta_clock == 0 )
                     {
-                        p_pes->i_pts = 0;
+                        p_pes->b_has_pts = 0;
                     }
                     else
                     {
-                        p_pes->i_pts = ( ((mtime_t)p_pes->p_pes_header[9] << 29) +
-                                         ((mtime_t)U16_AT(p_pes->p_pes_header + 10) << 14) +
-                                         ((mtime_t)U16_AT(p_pes->p_pes_header + 12) >> 1) -
-                                         (1 << 14) - (1 << 29) );
+                        p_pes->i_pts = ( ((mtime_t)(p_pes->p_pes_header[9] & 0x0E) << 29) |
+                                         (((mtime_t)U16_AT(p_pes->p_pes_header + 10) << 14) - (1 << 14)) |
+                                         ((mtime_t)U16_AT(p_pes->p_pes_header + 12) >> 1) );
                         p_pes->i_pts *= 300;
                         p_pes->i_pts /= 27;
                         p_pes->i_pts += p_pcr->delta_clock;
@@ -921,8 +918,8 @@ static __inline__ void input_DemuxPES( input_thread_t *p_input,
                             p_pcr->delta_decode = mdate() - p_pes->i_pts + 500000;
                         }
                         p_pes->i_pts += p_pcr->delta_decode;
-                    }
                         p_pcr->c_pts += 1;
+                    }
                     pthread_mutex_unlock( &p_pcr->lock );
                 }
                 break;