* ALL: removed GetPES and NextPES, we now use input_ExtractPES everywhere instead
   of these. The bitstream facility has also been changed to use input_ExtractPES
   and now stores the current PES in its structure.
   Introduced input_FlushPESFifo() and CloseBitstream().

include/input_ext-dec.h

@@ -2,7 +2,7 @@
  * input_ext-dec.h: structures exported to the VideoLAN decoders
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: input_ext-dec.h,v 1.74 2002/10/24 09:37:48 gbazin Exp $
+ * $Id: input_ext-dec.h,v 1.75 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *          Michel Kaempf <maxx@via.ecp.fr>
@@ -167,7 +167,9 @@ struct bit_stream_t
     /*
      * Byte structures
      */
-    /* Current data packet (in the current PES packet of the PES stream) */
+    /* Current PES packet (extracted from the PES stream) */
+    pes_packet_t *          p_pes;
+    /* Current data packet (in the current PES packet) */
     data_packet_t *         p_data;
     /* Pointer to the next byte that is to be read (in the current packet) */
     byte_t *                p_byte;
@@ -207,19 +209,16 @@ struct bit_stream_t
 /*****************************************************************************
  * Prototypes from input_ext-dec.c
  *****************************************************************************/
-VLC_EXPORT( void, InitBitstream,  ( bit_stream_t *, decoder_fifo_t *, void ( * )( bit_stream_t *, vlc_bool_t ), void * p_callback_arg ) );
-VLC_EXPORT( vlc_bool_t, NextDataPacket,    ( decoder_fifo_t *, data_packet_t ** ) );
-VLC_EXPORT( pes_packet_t *, GetPES,        ( decoder_fifo_t * ) );
-VLC_EXPORT( pes_packet_t *, NextPES,       ( decoder_fifo_t * ) );
+VLC_EXPORT( int, InitBitstream, ( bit_stream_t *, decoder_fifo_t *, void ( * )( bit_stream_t *, vlc_bool_t ), void * p_callback_arg ) );
+VLC_EXPORT( vlc_bool_t, NextDataPacket,    ( decoder_fifo_t *, bit_stream_t * ) );
 VLC_EXPORT( void, BitstreamNextDataPacket, ( bit_stream_t * ) );
 VLC_EXPORT( u32,  UnalignedShowBits,       ( bit_stream_t *, unsigned int ) );
 VLC_EXPORT( void, UnalignedRemoveBits,     ( bit_stream_t * ) );
 VLC_EXPORT( u32,  UnalignedGetBits,        ( bit_stream_t *, unsigned int ) );
+VLC_EXPORT( void, CloseBitstream,          ( bit_stream_t * ) );
 VLC_EXPORT( void, CurrentPTS,              ( bit_stream_t *, mtime_t *, mtime_t * ) );
 VLC_EXPORT( void, NextPTS,                 ( bit_stream_t *, mtime_t *, mtime_t * ) );
 
-VLC_EXPORT( int,  input_ExtractPES,        ( decoder_fifo_t *, pes_packet_t ** ) );
-
 /*****************************************************************************
  * AlignWord : fill in the bit buffer so that the byte pointer be aligned
  * on a word boundary (XXX: there must be at least sizeof(WORD_TYPE) - 1

include/input_ext-plugins.h

@@ -3,7 +3,7 @@
  *                      but exported to plug-ins
  *****************************************************************************
  * Copyright (C) 1999-2002 VideoLAN
- * $Id: input_ext-plugins.h,v 1.35 2002/08/08 00:35:10 sam Exp $
+ * $Id: input_ext-plugins.h,v 1.36 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *
@@ -58,6 +58,8 @@ VLC_EXPORT( int,  input_UnselectES,( input_thread_t *, es_descriptor_t * ) );
 decoder_fifo_t * input_RunDecoder( input_thread_t *, es_descriptor_t * );
 void input_EndDecoder( input_thread_t *, es_descriptor_t * );
 VLC_EXPORT( void, input_DecodePES, ( decoder_fifo_t *, pes_packet_t * ) );
+VLC_EXPORT( void, input_ExtractPES, ( decoder_fifo_t *, pes_packet_t ** ) );
+VLC_EXPORT( void, input_FlushPESFifo, ( decoder_fifo_t * ) );
 void input_EscapeDiscontinuity( input_thread_t * );
 void input_EscapeAudioDiscontinuity( input_thread_t * );
 

modules/codec/a52.c

@@ -2,7 +2,7 @@
  * a52.c: A/52 basic parser
  *****************************************************************************
  * Copyright (C) 2001-2002 VideoLAN
- * $Id: a52.c,v 1.15 2002/10/24 09:37:48 gbazin Exp $
+ * $Id: a52.c,v 1.16 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Stphane Borel <stef@via.ecp.fr>
  *          Christophe Massiot <massiot@via.ecp.fr>
@@ -130,8 +130,14 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
     aout_DateSet( &end_date, 0 );
 
     /* Init the bitstream */
-    InitBitstream( &p_dec->bit_stream, p_dec->p_fifo,
-                   NULL, NULL );
+    if( InitBitstream( &p_dec->bit_stream, p_dec->p_fifo,
+                       NULL, NULL ) != VLC_SUCCESS )
+    {
+        msg_Err( p_fifo, "cannot initialize bitstream" );
+        DecoderError( p_fifo );
+        free( p_dec );
+        return -1;
+    }
 
     /* decoder thread's main loop */
     while ( !p_dec->p_fifo->b_die && !p_dec->p_fifo->b_error )
@@ -252,6 +258,7 @@ static void EndThread( dec_thread_t * p_dec )
         aout_DecDelete( p_dec->p_aout, p_dec->p_aout_input );
     }
 
+    CloseBitstream( &p_dec->bit_stream );
     free( p_dec );
 }
 

modules/codec/a52old/a52old.c

@@ -2,7 +2,7 @@
  * a52old.c: A52 decoder module main file
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: a52old.c,v 1.7 2002/09/26 22:40:20 massiot Exp $
+ * $Id: a52old.c,v 1.8 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Michel Lespinasse <walken@zoy.org>
  *
@@ -330,10 +330,8 @@ static int InitThread( a52dec_t * p_a52dec )
     /*
      * Bit stream
      */
-    InitBitstream( &p_a52dec->bit_stream, p_a52dec->p_fifo,
-                   BitstreamCallback, (void *) p_a52dec );
-    
-    return( 0 );
+    return( InitBitstream( &p_a52dec->bit_stream, p_a52dec->p_fifo,
+                           BitstreamCallback, (void *) p_a52dec ) );
 }
 
 /*****************************************************************************
@@ -377,6 +375,7 @@ static void EndThread (a52dec_t * p_a52dec)
 
     /* Free what's left of the decoder */
     free( p_a52dec->imdct_orig );
+    CloseBitstream( p_a52dec->bit_stream );
 }
 
 /*****************************************************************************

modules/codec/araw.c

@@ -2,7 +2,7 @@
  * araw.c: Pseudo audio decoder; for raw pcm data
  *****************************************************************************
  * Copyright (C) 2001, 2002 VideoLAN
- * $Id: araw.c,v 1.4 2002/10/24 09:37:48 gbazin Exp $
+ * $Id: araw.c,v 1.5 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *      
@@ -315,7 +315,8 @@ static void DecodeThread( adec_thread_t *p_adec )
     pes_packet_t    *p_pes;
 
     /* **** get samples count **** */
-    if( input_ExtractPES( p_adec->p_fifo, &p_pes ) < 0 )
+    input_ExtractPES( p_adec->p_fifo, &p_pes );
+    if( !p_pes )
     {
         p_adec->p_fifo->b_error = 1;
         return;

modules/codec/cinepak/cinepak.c

@@ -2,7 +2,7 @@
  * cinepak.c: cinepak video decoder 
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: cinepak.c,v 1.5 2002/10/24 09:37:48 gbazin Exp $
+ * $Id: cinepak.c,v 1.6 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *
@@ -162,12 +162,24 @@ static inline void __GetFrame( videodec_thread_t *p_vdec )
     data_packet_t *p_data;
     byte_t        *p_buffer;
 
-    p_pes = GetPES( p_vdec->p_fifo );
+    input_ExtractPES( p_vdec->p_fifo, &p_pes );
+    if( !p_pes )
+    {
+        p_vdec->p_framedata = NULL;
+        return;
+    }
+
     p_vdec->i_pts = p_pes->i_pts;
 
     while( ( !p_pes->i_nb_data )||( !p_pes->i_pes_size ) )
     {
-        p_pes = NextPES( p_vdec->p_fifo );
+        input_DeletePES( p_vdec->p_fifo->p_packets_mgt, p_pes );
+        input_ExtractPES( p_vdec->p_fifo, &p_pes );
+        if( !p_pes )
+        {
+            p_vdec->p_framedata = NULL;
+            return;
+        }
     }
     p_vdec->i_framesize = p_pes->i_pes_size;
     if( p_pes->i_nb_data == 1 )
@@ -185,18 +197,19 @@ static inline void __GetFrame( videodec_thread_t *p_vdec )
         p_buffer += p_data->p_payload_end - p_data->p_payload_start;
         p_data = p_data->p_next;
     } while( p_data );
+    input_DeletePES( p_vdec->p_fifo->p_packets_mgt, p_pes );
 }
 
 static inline void __NextFrame( videodec_thread_t *p_vdec )
 {
     pes_packet_t  *p_pes;
 
-    p_pes = GetPES( p_vdec->p_fifo );
-    if( p_pes->i_nb_data != 1 )
+    input_ExtractPES( p_vdec->p_fifo, &p_pes );
+    if( p_pes && (p_pes->i_nb_data != 1) )
     {
         free( p_vdec->p_framedata ); /* FIXME keep this buffer */
     }
-    NextPES( p_vdec->p_fifo );
+    input_DeletePES( p_vdec->p_fifo->p_packets_mgt, p_pes );
 }
 
 static int cinepak_CheckVout( vout_thread_t *p_vout,

modules/codec/dv/dv.c

@@ -2,7 +2,7 @@
  * dv.c: a decoder for DV video
  *****************************************************************************
  * Copyright (C) 2002 VideoLAN
- * $Id: dv.c,v 1.2 2002/08/12 09:34:15 sam Exp $
+ * $Id: dv.c,v 1.3 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *      
@@ -99,7 +99,14 @@ static int RunDecoder ( decoder_fifo_t *p_fifo )
         return -1;
     }
 
-    InitBitstream( &bit_stream, p_fifo, NULL, NULL );
+    if( InitBitstream( &bit_stream, p_fifo, NULL, NULL ) != VLC_SUCCESS )
+    {
+        msg_Err( p_fifo, "cannot initialise bitstream" );
+        free( p_buffer );
+        p_fifo->b_error = 1;
+        DecoderError( p_fifo );
+        return -1;
+    }
 
     /* Fill the buffer */
     GetChunk( &bit_stream, p_buffer, i_data );
@@ -260,6 +267,7 @@ static int RunDecoder ( decoder_fifo_t *p_fifo )
     }
 
     free( p_buffer );
+    CloseBitstream( bit_stream );
 
     if( p_fifo->b_error )
     {
@@ -303,4 +311,3 @@ static pes_packet_t *GetFirstPES( decoder_fifo_t *p_fifo )
     
     return p_pes;
 }
-

modules/codec/faad/decoder.c

@@ -2,7 +2,7 @@
  * decoder.c: AAC decoder using libfaad2
  *****************************************************************************
  * Copyright (C) 2001, 2002 VideoLAN
- * $Id: decoder.c,v 1.7 2002/10/24 09:37:47 gbazin Exp $
+ * $Id: decoder.c,v 1.8 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *      
@@ -154,7 +154,13 @@ static inline void __GetFrame( adec_thread_t *p_adec )
     data_packet_t *p_data;
     byte_t        *p_buffer;
 
-    p_pes = GetPES( p_adec->p_fifo );
+    input_ExtractPES( p_adec->p_fifo, &p_pes );
+    if( !p_pes )
+    {
+        p_adec->p_framedata = NULL;
+        return;
+    }
+
     if( p_pes->i_pts )
     {
         p_adec->pts = p_pes->i_pts;
@@ -162,7 +168,13 @@ static inline void __GetFrame( adec_thread_t *p_adec )
 
     while( ( !p_pes->i_nb_data )||( !p_pes->i_pes_size ) )
     {
-        p_pes = NextPES( p_adec->p_fifo );
+        input_DeletePES( p_adec->p_fifo->p_packets_mgt, p_pes );
+        input_ExtractPES( p_adec->p_fifo, &p_pes );
+        if( !p_pes )
+        {
+            p_vdec->p_framedata = NULL;
+            return;
+        }
     }
     p_adec->i_framesize = p_pes->i_pes_size;
     if( p_pes->i_nb_data == 1 )
@@ -194,11 +206,13 @@ static inline void __GetFrame( adec_thread_t *p_adec )
         p_buffer += p_data->p_payload_end - p_data->p_payload_start;
         p_data = p_data->p_next;
     } while( p_data );
+
+    input_DeletePES( p_adec->p_fifo->p_packets_mgt, p_pes );
 }
 
 static inline void __NextFrame( adec_thread_t *p_adec )
 {
-    NextPES( p_adec->p_fifo );
+    input_ExtractPES( p_vdec->p_fifo, NULL );
 }
 
 

modules/codec/ffmpeg/ffmpeg.c

@@ -2,7 +2,7 @@
  * ffmpeg.c: video decoder using ffmpeg library
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: ffmpeg.c,v 1.10 2002/10/24 10:33:09 fenrir Exp $
+ * $Id: ffmpeg.c,v 1.11 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *
@@ -795,7 +795,7 @@ static void  DecodeThread( videodec_thread_t *p_vdec )
             /* too much late picture, won't decode 
                but break picture until a new I, and for mpeg4 ...*/
             p_vdec->i_frame_late--; /* needed else it will never be decrease */
-            NextPES( p_vdec->p_fifo );
+            input_ExtractPES( p_vdec->p_fifo, NULL );
             return;
         }
 #else
@@ -808,7 +808,7 @@ static void  DecodeThread( videodec_thread_t *p_vdec )
             /* too much late picture, won't decode 
                but break picture until a new I, and for mpeg4 ...*/
             p_vdec->i_frame_late--; /* needed else it will never be decrease */
-            NextPES( p_vdec->p_fifo );
+            input_ExtractPES( p_vdec->p_fifo, NULL );
             return;
         }
 #endif
@@ -823,7 +823,8 @@ static void  DecodeThread( videodec_thread_t *p_vdec )
 
     do
     {
-        if( !( p_pes = GetPES( p_vdec->p_fifo ) ) )
+        input_ExtractPES( p_vdec->p_fifo, &p_pes );
+        if( !p_pes )
         {
             p_vdec->p_fifo->b_error = 1;
             return;
@@ -842,7 +843,7 @@ static void  DecodeThread( videodec_thread_t *p_vdec )
             
             GetPESData( p_vdec->p_buffer, p_vdec->i_buffer, p_pes );
         }
-        NextPES( p_vdec->p_fifo );
+        input_DeletePES( p_vdec->p_fifo->p_packets_mgt, p_pes );
     } while( i_frame_size <= 0 );
 
 

modules/codec/lpcm.c

@@ -2,7 +2,7 @@
  * lpcm.c: lpcm decoder module
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: lpcm.c,v 1.5 2002/10/15 23:10:54 massiot Exp $
+ * $Id: lpcm.c,v 1.6 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *          Henri Fallon <henri@videolan.org>
@@ -121,8 +121,14 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
     p_dec->p_fifo = p_fifo;
 
     /* Init the bitstream */
-    InitBitstream( &p_dec->bit_stream, p_dec->p_fifo,
-                   NULL, NULL );
+    if( InitBitstream( &p_dec->bit_stream, p_dec->p_fifo,
+                       NULL, NULL ) != VLC_SUCCESS )
+    {
+        msg_Err( p_fifo, "cannot initialize bitstream" );
+        DecoderError( p_fifo );
+        EndThread( p_dec );
+        return -1;
+    }
    
     /* FIXME : I suppose the number of channel and sampling rate 
      * are somewhere in the headers */
@@ -140,6 +146,7 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
     {
         msg_Err( p_dec->p_fifo, "failed to create aout fifo" );
         p_dec->p_fifo->b_error = 1;
+        EndThread( p_dec );
         return( -1 );
     }
 
@@ -220,5 +227,6 @@ static void EndThread( dec_thread_t * p_dec )
         aout_DecDelete( p_dec->p_aout, p_dec->p_aout_input );
     }
 
+    CloseBitstream( &p_dec->bit_stream );
     free( p_dec );
 }

modules/codec/mad/decoder.c

@@ -136,8 +136,6 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
  *****************************************************************************/
 static int InitThread( mad_adec_thread_t * p_dec )
 {
-    decoder_fifo_t * p_fifo = p_dec->p_fifo;
-
     /* Initialize the thread properties */
     p_dec->p_aout = NULL;
     p_dec->p_aout_input = NULL;
@@ -165,21 +163,7 @@ static int InitThread( mad_adec_thread_t * p_dec )
      * Initialize the input properties
      */
 
-    /* Get the first data packet. */
-    vlc_mutex_lock( &p_fifo->data_lock );
-    while ( p_fifo->p_first == NULL )
-    {
-        if ( p_fifo->b_die )
-        {
-            vlc_mutex_unlock( &p_fifo->data_lock );
-            return VLC_EGENERIC;
-        }
-        vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
-    }
-    vlc_mutex_unlock( &p_fifo->data_lock );
-    p_dec->p_data = p_fifo->p_first->p_first;
-
-    return VLC_SUCCESS;
+    return InitBitstream( &p_dec->bit_stream, p_dec->p_fifo, NULL, NULL );
 }
 
 /*****************************************************************************
@@ -196,6 +180,6 @@ static void EndThread (mad_adec_thread_t * p_dec)
     /* mad_decoder_finish releases the memory allocated inside the struct */
     mad_decoder_finish( &p_dec->libmad_decoder );
 
+    CloseBitstream( &p_dec->bit_stream );
     free( p_dec );
 }
-

modules/codec/mad/decoder.h

@@ -42,7 +42,7 @@ typedef struct mad_adec_thread_s
      * Input properties
      */
     decoder_fifo_t *    p_fifo;                /* stores the PES stream data */
-    data_packet_t *     p_data;
+    bit_stream_t        bit_stream;    /* handle PES stream at the bit level */
 
     /* Store i_pts for syncing audio frames */
     mtime_t             i_current_pts, i_next_pts;

modules/codec/mad/libmad.c

@@ -81,7 +81,7 @@ enum mad_flow libmad_input( void *p_data, struct mad_stream *p_stream )
             i_wanted = MAD_BUFFER_MDLEN - i_left;
 
             /* Store timestamp for next frame */
-            p_dec->i_next_pts = p_dec->p_fifo->p_first->i_pts;
+            p_dec->i_next_pts = p_dec->bit_stream.p_pes->i_pts;
         }
         else
         {
@@ -89,27 +89,28 @@ enum mad_flow libmad_input( void *p_data, struct mad_stream *p_stream )
             i_left = 0;
 
             /* Store timestamp for this frame */
-            p_dec->i_current_pts = p_dec->p_fifo->p_first->i_pts;
+            p_dec->i_current_pts = p_dec->bit_stream.p_pes->i_pts;
         }
-        p_dec->p_fifo->p_first->i_pts = 0;
 
         /* Fill-in the buffer. If an error occurs print a message and leave
          * the decoding loop. If the end of stream is reached we also leave
          * the loop but the return status is left untouched. */
-        if( i_wanted > p_dec->p_data->p_payload_end
-                        - p_dec->p_data->p_payload_start )
+        if( i_wanted > p_dec->bit_stream.p_data->p_payload_end
+                        - p_dec->bit_stream.p_data->p_payload_start )
         {
-            i_wanted = p_dec->p_data->p_payload_end
-                        - p_dec->p_data->p_payload_start;
+            i_wanted = p_dec->bit_stream.p_data->p_payload_end
+                        - p_dec->bit_stream.p_data->p_payload_start;
             memcpy( p_dec->buffer + i_left,
-                    p_dec->p_data->p_payload_start, i_wanted );
-            NextDataPacket( p_dec->p_fifo, &p_dec->p_data );
+                    p_dec->bit_stream.p_data->p_payload_start, i_wanted );
+            NextDataPacket( p_dec->p_fifo, &p_dec->bit_stream );
+            /* No need to check that p_dec->bit_stream->p_data is valid
+             * since we check later on for b_die and b_error */
         }
         else
         {
             memcpy( p_dec->buffer + i_left,
-                    p_dec->p_data->p_payload_start, i_wanted );
-            p_dec->p_data->p_payload_start += i_wanted;
+                    p_dec->bit_stream.p_data->p_payload_start, i_wanted );
+            p_dec->bit_stream.p_data->p_payload_start += i_wanted;
         }
 
         if ( p_dec->p_fifo->b_die )
@@ -354,7 +355,7 @@ enum mad_flow libmad_error( void *data, struct mad_stream *p_libmad_stream,
 
 
 /****************************************************************************
- * Print human readable informations about an audio MPEG frame.				*
+ * Print human readable informations about an audio MPEG frame.
  ****************************************************************************/
 static void PrintFrameInfo(struct mad_header *Header)
 {

modules/codec/mpeg_audio/decoder.c

@@ -2,7 +2,7 @@
  * decoder.c: MPEG audio decoder thread
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: decoder.c,v 1.6 2002/10/15 23:10:54 massiot Exp $
+ * $Id: decoder.c,v 1.7 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Michel Kaempf <maxx@via.ecp.fr>
  *          Michel Lespinasse <walken@via.ecp.fr>
@@ -109,7 +109,13 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
     /*
      * Initialize bit stream 
      */
-    InitBitstream( &p_dec->bit_stream, p_dec->p_fifo, NULL, NULL );
+    if( InitBitstream( &p_dec->bit_stream, p_dec->p_fifo, NULL, NULL )
+        != VLC_SUCCESS )
+    {
+        msg_Err( p_fifo, "cannot initialize bitstream" );
+        DecoderError( p_fifo );
+        return 0;
+    }
 
     /* We do not create the audio output fifo now, but
        it will be created when the first frame is received */
@@ -242,6 +248,8 @@ static void EndThread ( adec_thread_t *p_dec )
         
     }
 
+    CloseBitstream( &p_dec->bit_stream );
+
     /* Destroy descriptor */
     free( p_dec );
 }

modules/codec/mpeg_video/parser.c

@@ -2,7 +2,7 @@
  * video_parser.c : video parser thread
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: parser.c,v 1.4 2002/08/12 09:34:15 sam Exp $
+ * $Id: parser.c,v 1.5 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *          Samuel Hocevar <sam@via.ecp.fr>
@@ -231,8 +231,14 @@ static int InitThread( vpar_thread_t *p_vpar )
     p_vpar->pf_idct_copy        = ((void**)p_vpar->p_fifo->p_private)[5];
 
     /* Initialize input bitstream */
-    InitBitstream( &p_vpar->bit_stream, p_vpar->p_fifo,
-                   BitstreamCallback, (void *)p_vpar );
+    if( InitBitstream( &p_vpar->bit_stream, p_vpar->p_fifo,
+                       BitstreamCallback, (void *)p_vpar ) != VLC_SUCCESS )
+    {
+        msg_Err( p_vpar->p_fifo, "cannot initialize bitstream" );
+        module_Unneed( p_vpar->p_fifo, p_vpar->p_motion );
+        free( p_vpar );
+        return( -1 );
+    }
 
     /* Initialize parsing data */
     p_vpar->sequence.p_forward = NULL;
@@ -383,6 +389,7 @@ static void EndThread( vpar_thread_t *p_vpar )
     module_Unneed( p_vpar->p_fifo, p_vpar->p_idct );
     module_Unneed( p_vpar->p_fifo, p_vpar->p_motion );
 
+    CloseBitstream( &p_vpar->bit_stream );
     free( p_vpar );
 }
 
@@ -399,9 +406,9 @@ static void BitstreamCallback ( bit_stream_t * p_bit_stream,
     if( b_new_pes )
     {
         p_vpar->sequence.i_current_rate =
-            p_bit_stream->p_decoder_fifo->p_first->i_rate;
+            p_bit_stream->p_pes->i_rate;
 
-        if( p_bit_stream->p_decoder_fifo->p_first->b_discontinuity )
+        if( p_bit_stream->p_pes->b_discontinuity )
         {
             /* Escape the current picture and reset the picture predictors. */
             p_vpar->sequence.b_expect_discontinuity = 1;

modules/codec/spudec/spudec.c

@@ -2,7 +2,7 @@
  * spudec.c : SPU decoder thread
  *****************************************************************************
  * Copyright (C) 2000-2001 VideoLAN
- * $Id: spudec.c,v 1.4 2002/09/14 20:50:24 stef Exp $
+ * $Id: spudec.c,v 1.5 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *
@@ -166,10 +166,8 @@ static int InitThread( spudec_thread_t *p_spudec )
     }
     while( 1 );
 
-    InitBitstream( &p_spudec->bit_stream, p_spudec->p_fifo, NULL, NULL );
-
-    /* Mark thread as running and return */
-    return 0;
+    return InitBitstream( &p_spudec->bit_stream, p_spudec->p_fifo,
+                          NULL, NULL );
 }
 
 /*****************************************************************************
@@ -201,6 +199,7 @@ static void EndThread( spudec_thread_t *p_spudec )
         vlc_object_release( p_spudec->p_vout );
     }
     
+    CloseBitstream( &p_spudec->bit_stream );
     free( p_spudec );
 }
 

modules/codec/vorbis.c

@@ -2,7 +2,7 @@
  * vorbis.c: vorbis decoder module making use of libvorbis.
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: vorbis.c,v 1.1 2002/10/24 09:30:47 gbazin Exp $
+ * $Id: vorbis.c,v 1.2 2002/10/27 16:58:14 gbazin Exp $
  *
  * Authors: Gildas Bazin <gbazin@netcourrier.com>
  *
@@ -61,7 +61,8 @@ typedef struct dec_thread_t
     /*
      * Input properties
      */
-    decoder_fifo_t *    p_fifo;                /* stores the PES stream data */
+    decoder_fifo_t         *p_fifo;            /* stores the PES stream data */
+    pes_packet_t           *p_pes;            /* current PES we are decoding */
 
     /*
      * Output properties
@@ -81,7 +82,7 @@ static int  RunDecoder   ( decoder_fifo_t * );
 static void CloseDecoder ( dec_thread_t * );
 
 static void DecodePacket ( dec_thread_t * );
-static int  GetOggPacket ( dec_thread_t *, ogg_packet *, mtime_t *, int );
+static int  GetOggPacket ( dec_thread_t *, ogg_packet *, mtime_t * );
 
 static void Interleave   ( float *, const float **, int, int );
 
@@ -129,12 +130,13 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
 
     /* Initialize the thread properties */
     p_dec->p_fifo = p_fifo;
+    p_dec->p_pes  = NULL;
 
     /* Take care of the initial Vorbis header */
     vorbis_info_init( &p_dec->vi );
     vorbis_comment_init( &p_dec->vc );
 
-    if( GetOggPacket( p_dec, &oggpacket, &i_pts, 0 ) != VLC_SUCCESS )
+    if( GetOggPacket( p_dec, &oggpacket, &i_pts ) != VLC_SUCCESS )
         goto error;
 
     oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
@@ -148,7 +150,7 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
     /* The next two packets in order are the comment and codebook headers.
        We need to watch out that these packets are not missing as a
        missing or corrupted header is fatal. */
-    if( GetOggPacket( p_dec, &oggpacket, &i_pts, 1 ) != VLC_SUCCESS )
+    if( GetOggPacket( p_dec, &oggpacket, &i_pts ) != VLC_SUCCESS )
         goto error;
 
     if( vorbis_synthesis_headerin( &p_dec->vi, &p_dec->vc, &oggpacket ) < 0 )
@@ -157,7 +159,7 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
         goto error;
     }
 
-    if( GetOggPacket( p_dec, &oggpacket, &i_pts, 1 ) != VLC_SUCCESS )
+    if( GetOggPacket( p_dec, &oggpacket, &i_pts ) != VLC_SUCCESS )
         goto error;
 
     if( vorbis_synthesis_headerin( &p_dec->vi, &p_dec->vc, &oggpacket ) < 0 )
@@ -235,7 +237,7 @@ static void DecodePacket( dec_thread_t *p_dec )
     int           i_samples;
     mtime_t       i_pts;
 
-    if( GetOggPacket( p_dec, &oggpacket, &i_pts, 1 ) != VLC_SUCCESS )
+    if( GetOggPacket( p_dec, &oggpacket, &i_pts ) != VLC_SUCCESS )
     {
         /* This should mean an eos */
         return;
@@ -297,23 +299,24 @@ static void DecodePacket( dec_thread_t *p_dec )
  * Returns VLC_EGENERIC in case of eof.
  *****************************************************************************/
 static int GetOggPacket( dec_thread_t *p_dec, ogg_packet *p_oggpacket,
-                         mtime_t *p_pts, int b_next )
+                         mtime_t *p_pts )
 {
-    pes_packet_t *p_pes;
+    if( p_dec->p_pes ) input_DeletePES( p_dec->p_fifo->p_packets_mgt,
+                                        p_dec->p_pes );
 
-    if( b_next ) NextPES( p_dec->p_fifo );
-    p_pes = GetPES( p_dec->p_fifo );
+    input_ExtractPES( p_dec->p_fifo, &p_dec->p_pes );
+    if( !p_dec->p_pes ) return VLC_EGENERIC;
 
-    p_oggpacket->packet = p_pes->p_first->p_payload_start;
-    p_oggpacket->bytes = p_pes->i_pes_size;
-    p_oggpacket->granulepos = p_pes->i_dts;
+    p_oggpacket->packet = p_dec->p_pes->p_first->p_payload_start;
+    p_oggpacket->bytes = p_dec->p_pes->i_pes_size;
+    p_oggpacket->granulepos = p_dec->p_pes->i_dts;
     p_oggpacket->b_o_s = 0;
     p_oggpacket->e_o_s = 0;
     p_oggpacket->packetno = 0;
 
-    *p_pts = p_pes->i_pts;
+    *p_pts = p_dec->p_pes->i_pts;
 
-    return p_pes ? VLC_SUCCESS : VLC_EGENERIC;
+    return VLC_SUCCESS;
 }
 
 /*****************************************************************************
@@ -345,6 +348,8 @@ static void CloseDecoder( dec_thread_t * p_dec )
 
     if( p_dec )
     {
+        if( p_dec->p_pes )
+            input_DeletePES( p_dec->p_fifo->p_packets_mgt, p_dec->p_pes );
         vorbis_block_clear( &p_dec->vb );
         vorbis_dsp_clear( &p_dec->vd );
         vorbis_comment_clear( &p_dec->vc );

modules/misc/dummy/decoder.c

@@ -2,7 +2,7 @@
  * dec_dummy.c: dummy decoder plugin for vlc.
  *****************************************************************************
  * Copyright (C) 2002 VideoLAN
- * $Id: decoder.c,v 1.2 2002/08/04 17:40:49 sam Exp $
+ * $Id: decoder.c,v 1.3 2002/10/27 16:58:13 gbazin Exp $
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *      
@@ -81,7 +81,14 @@ static int Run ( decoder_fifo_t *p_fifo )
 
     msg_Dbg( p_fifo, "dumping stream to file `%s'", psz_file );
 
-    InitBitstream( &bit_stream, p_fifo, NULL, NULL );
+    if( InitBitstream( &bit_stream, p_fifo, NULL, NULL ) != VLC_SUCCESS )
+    {
+        msg_Err( p_fifo, "cannot initialize bitstream" );
+        p_fifo->b_error = 1;
+        DecoderError( p_fifo );
+        close( i_fd );
+        return -1;
+    }
 
     while( !p_fifo->b_die && !p_fifo->b_error )
     {
@@ -107,6 +114,7 @@ static int Run ( decoder_fifo_t *p_fifo )
     }
 
     close( i_fd );
+    CloseBitstream( &bit_stream );
 
     if( p_fifo->b_error )
     {
@@ -116,4 +124,3 @@ static int Run ( decoder_fifo_t *p_fifo )
 
     return 0;
 }
-

src/input/input_dec.c

@@ -2,7 +2,7 @@
  * input_dec.c: Functions for the management of decoders
  *****************************************************************************
  * Copyright (C) 1999-2001 VideoLAN
- * $Id: input_dec.c,v 1.47 2002/09/01 21:20:29 massiot Exp $
+ * $Id: input_dec.c,v 1.48 2002/10/27 16:58:12 gbazin Exp $
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *
@@ -155,6 +155,76 @@ void input_DecodePES( decoder_fifo_t * p_decoder_fifo, pes_packet_t * p_pes )
     vlc_mutex_unlock( &p_decoder_fifo->data_lock );
 }
 
+/****************************************************************************
+ * input_ExtractPES
+ *****************************************************************************
+ * Extract a PES from the fifo. If pp_pes is NULL then the PES is just
+ * deleted, otherwise *pp_pes will point to this PES.
+ ****************************************************************************/
+void input_ExtractPES( decoder_fifo_t *p_fifo, pes_packet_t **pp_pes )
+{
+    pes_packet_t *p_pes;
+
+    vlc_mutex_lock( &p_fifo->data_lock );
+
+    if( p_fifo->p_first == NULL )
+    {
+        if( p_fifo->b_die )
+        {
+            vlc_mutex_unlock( &p_fifo->data_lock );
+            if( pp_pes ) *pp_pes = NULL;
+            return;
+        }
+
+        /* Signal the input thread we're waiting. This is only
+         * needed in case of slave clock (ES plug-in) but it won't
+         * harm. */
+        vlc_cond_signal( &p_fifo->data_wait );
+
+        /* Wait for the input to tell us when we received a packet. */
+        vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
+    }
+
+    p_pes = p_fifo->p_first;
+    p_fifo->p_first = p_pes->p_next;
+    p_pes->p_next = NULL;
+    p_fifo->i_depth--;
+
+    if( !p_fifo->p_first )
+    {
+        /* No PES in the FIFO. p_last is no longer valid. */
+        p_fifo->pp_last = &p_fifo->p_first;
+    }
+
+    vlc_mutex_unlock( &p_fifo->data_lock );
+
+    if( pp_pes )
+        *pp_pes = p_pes;
+    else
+        input_DeletePES( p_fifo->p_packets_mgt, p_pes );
+}
+
+/****************************************************************************
+ * input_FlushPESFifo
+ *****************************************************************************
+ * Empties the PES fifo of the decoder.
+ ****************************************************************************/
+void input_FlushPESFifo( decoder_fifo_t *p_fifo )
+{
+    pes_packet_t * p_pes;
+
+    vlc_mutex_lock( &p_fifo->data_lock );
+    while( p_fifo->p_first )
+    {
+        p_pes = p_fifo->p_first;
+        p_fifo->p_first = p_fifo->p_first->p_next;
+        input_DeletePES( p_fifo->p_packets_mgt, p_pes );
+    }
+    /* No PES in the FIFO. p_last is no longer valid. */
+    p_fifo->pp_last = &p_fifo->p_first;
+    vlc_mutex_unlock( &p_fifo->data_lock );
+}
+
 /*****************************************************************************
  * input_EscapeDiscontinuity: send a NULL packet to the decoders
  *****************************************************************************/