* all : begin to support VOD, but it segfault very quickly (unless you

disable audio or video !)and cannot support seeking( will just stop ).
Moreover it can't work for all files, only interleaved ones.

plugins/avi/avi.c

@@ -2,7 +2,7 @@
  * avi.c : AVI file Stream input module for vlc
  *****************************************************************************
  * Copyright (C) 2001 VideoLAN
- * $Id: avi.c,v 1.28 2002/06/30 15:07:57 fenrir Exp $
+ * $Id: avi.c,v 1.29 2002/07/02 17:54:49 fenrir Exp $
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  * 
  * This program is free software; you can redistribute it and/or modify
@@ -836,18 +836,19 @@ static int AVIInit( input_thread_t *p_input )
         __AVI_UpdateIndexOffset( p_input );
         /* to make sure to go the begining unless demux will see a seek */
         RIFF_GoToChunk( p_input, p_avi_demux->p_movi );
-        if( RIFF_DescendChunk( p_input ) != 0 )
-        {
-            AVIEnd( p_input );
-            msg_Err( p_input, "cannot go in (\"movi\")" );
-            return( -1 );
-        }
+
     }
     else
     {
         msg_Warn( p_input, "no index!" );
     }
 
+    if( RIFF_DescendChunk( p_input ) != 0 )
+    {
+        AVIEnd( p_input );
+        msg_Err( p_input, "cannot go in (\"movi\")" );
+        return( -1 );
+    }
 
     /* print informations on streams */
     msg_Dbg( p_input, "AVIH: %d stream, flags %s%s%s%s ", 
@@ -962,7 +963,8 @@ static mtime_t AVI_GetPTS( AVIStreamInfo_t *p_info )
             }
             else
             {
-                i_len = 0; /* no valid zntry */
+                i_len = p_info->i_idxposb; 
+                /* no valid entry use only offset*/
             }
         }
         else
@@ -1004,11 +1006,22 @@ static int __AVI_GetDataInPES( input_thread_t *p_input,
     int i_read;
     data_packet_t *p_data;
 
+    
     if( !(*pp_pes = input_NewPES( p_input->p_method_data ) ) )
     {
         return( 0 );
     }
 
+    
+    if( !i_size )
+    {
+        p_data = input_NewPacket( p_input->p_method_data, 0 );
+        (*pp_pes)->p_first = (*pp_pes)->p_last  = p_data;
+        (*pp_pes)->i_nb_data = 1;
+        (*pp_pes)->i_pes_size = 0;
+        return( 0 );
+    }
+    
     if( ( i_size&1 )&&( b_pad ) )
     {
         b_pad = 1;
@@ -1019,14 +1032,6 @@ static int __AVI_GetDataInPES( input_thread_t *p_input,
         b_pad = 0;
     }
 
-    if( !i_size )
-    {
-        (*pp_pes)->p_first = (*pp_pes)->p_last  = NULL;
-        (*pp_pes)->i_nb_data = 0;
-        (*pp_pes)->i_pes_size = 0;
-        return( 0 );
-    }
-
     do
     {
         i_read = input_SplitBuffer(p_input, &p_data, i_size - 
@@ -1197,6 +1202,7 @@ static int __AVI_GetAndPutChunkInBuffer( input_thread_t  *p_input,
         return( 0 );
     }
     p_pes->p_first->p_payload_start += 8;
+    p_pes->i_pes_size -= 8;
 
     i_size = GetDWLE( p_pes->p_first->p_demux_start + 4);
 
@@ -1820,6 +1826,303 @@ static inline void AVI_DecodePES( input_thread_t *p_input,
   
 }
 
+/*****************************************************************************
+ * AVIDemux_Seekable: reads and demuxes data packets for stream seekable
+ *****************************************************************************
+ * Called by AVIDemux, that make common work
+ * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
+ *****************************************************************************/
+static int AVIDemux_Seekable( input_thread_t *p_input,
+                              AVIStreamInfo_t *p_info_master,
+                              AVIStreamInfo_t *p_info_slave )
+{
+    demux_data_avi_file_t *p_avi_demux = 
+                (demux_data_avi_file_t*)p_input->p_demux_data;
+
+    pes_packet_t *p_pes_master;
+    pes_packet_t *p_pes_slave;
+
+    /* check for signal from interface */
+    if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
+    { 
+        /* we can supposed that is a seek */
+        /* first wait for empty buffer, arbitrary time */
+        msleep( DEFAULT_PTS_DELAY );
+        /* then try to realign in stream */
+        if( !AVI_ReAlign( p_input, p_info_master ) )
+        {
+            return( 0 ); /* assume EOF */
+        }
+        AVI_SynchroReInit( p_input ); 
+    }
+
+    /* take care of newly selected audio ES */
+    if( p_info_master->b_selected )
+    {
+        p_info_master->b_selected = 0;
+        AVI_SynchroReInit( p_input ); 
+    }
+    if( ( p_info_slave )&&( p_info_slave->b_selected ) )
+    {
+        p_info_slave->b_selected = 0;
+        AVI_SynchroReInit( p_input );
+    }
+
+    /* wait for the good time */
+    input_ClockManageRef( p_input,
+                          p_input->stream.p_selected_program,
+                          p_avi_demux->i_pcr /*- DEFAULT_PTS_DELAY / 2 */); 
+    /* calculate pcr, time when we must read the next data */
+    /* 9/100 kludge ->need to convert to 1/1000000 clock unit to 1/90000 */
+    if( p_info_slave )
+    {
+        p_avi_demux->i_pcr =  __MIN( AVI_GetPTS( p_info_master ),
+                                     AVI_GetPTS( p_info_slave ) ) * 9/100;
+    }
+    else
+    {
+        p_avi_demux->i_pcr =  AVI_GetPTS( p_info_master ) * 9/100;
+    }
+
+    /* get video and audio frames */
+    p_pes_master = AVI_GetFrameInPES( p_input,
+                                      p_info_master,
+                                      100000 ); /* 100 ms */
+    AVI_DecodePES( p_input,
+                   p_info_master,
+                   p_pes_master);
+
+
+    if( p_info_slave )
+    {
+        p_pes_slave = AVI_GetFrameInPES( p_input,
+                                         p_info_slave,
+                                         AVI_GetPTS( p_info_master ) -
+                                             AVI_GetPTS( p_info_slave) );
+        AVI_DecodePES( p_input,
+                       p_info_slave,
+                       p_pes_slave );
+    }
+
+
+    /* at the end ? */
+    return( p_pes_master ? 1 : 0 );
+
+}
+
+/*****************************************************************************
+ * AVIDemux_NotSeekable: reads and demuxes data packets for stream seekable
+ *****************************************************************************
+ * Called by AVIDemux, that makes common work
+ * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
+ *****************************************************************************/
+
+/* 0 if can be load/updated, 1 if skip, 2 if descend into, 3 if exit, 4 if error and need recover */
+static int __AVIDemux_ChunkAction( int i_streams_max,
+                                   riffchunk_t *p_ck )
+{
+    int i_stream;
+    int i_type;
+
+    AVI_ParseStreamHeader( p_ck->i_id, &i_stream, &i_type );
+    if( i_stream < i_streams_max )
+    {
+        return( 0 ); /* read and/or update stream info */
+    }
+
+    if( i_stream <= 99 )
+    {
+        /* should not happen but ... */
+        return( 1 );
+    }
+
+    /* now we know that it's not a stream */
+
+    switch( p_ck->i_id )
+    {
+        case( FOURCC_JUNK ):
+            return( 1 );
+        case( FOURCC_idx1 ):
+            return( 3 );
+        case( FOURCC_LIST ):
+            if( p_ck->i_type == FOURCC_rec )
+            {
+                return( 2 );
+            }
+            else
+            {
+                return( 1 );
+            }
+        default:
+            break;
+    } 
+    /* test for ix?? */
+
+    if( ( p_ck->i_id & 0xFFFF ) == VLC_TWOCC( 'i','x' ) )
+    {
+        return( 1 );
+    }
+
+    return( 4 );
+}
+
+static int AVIDemux_NotSeekable( input_thread_t *p_input,
+                                 AVIStreamInfo_t *p_info_master,
+                                 AVIStreamInfo_t *p_info_slave )
+{
+    demux_data_avi_file_t *p_avi_demux = 
+                (demux_data_avi_file_t*)p_input->p_demux_data;
+    int i_loop;
+    int i_stream;
+    int i_type;
+    
+    riffchunk_t *p_ck;
+    pes_packet_t *p_pes;
+   
+/*
+    i_filepos = AVI_TellAbsolute( p_input );
+    p_input->pf_seek( p_input, i_filepos ); 
+    input_AccessReinit( p_input );
+*/
+    
+#define p_info p_avi_demux->pp_info[i_stream]
+
+    /* The managment is very basic, we will read packets, caclulate pts 
+    and send it to decoder, synchro made on video, and audio is very less
+    important */
+    
+    /* wait the good time */
+    input_ClockManageRef( p_input,
+                          p_input->stream.p_selected_program,
+                          p_avi_demux->i_pcr /*- DEFAULT_PTS_DELAY / 2 */); 
+    /* TODO be smart, seeing if we can wait for min( audio, video )
+        or there is a too big deep */
+    if( !p_info_slave )
+    {
+        p_avi_demux->i_pcr =  AVI_GetPTS( p_info_master ) * 9/100;
+    }
+    else
+    {
+        p_avi_demux->i_pcr =  __MIN( AVI_GetPTS( p_info_master ),
+                                 AVI_GetPTS( p_info_slave ) ) * 9/100;
+        p_avi_demux->i_pcr =  AVI_GetPTS( p_info_master ) * 9/100;
+    }
+    
+    for( i_loop = 0; i_loop < 10; i_loop++ )
+    {
+        int b_load =0;
+        
+        /* first find a ck for master or slave */
+        do
+        {
+
+            if( !(p_ck = RIFF_ReadChunk( p_input ) ) )
+            {
+                msg_Err( p_input, "Badd" );
+                return( 0 ); /* assume EOF */
+            }
+            //msg_Err( p_input,"Looking ck: %4.4s %d",&p_ck->i_id, p_ck->i_size );
+
+            switch( __AVIDemux_ChunkAction( p_avi_demux->i_streams, p_ck ) )
+            {
+                case( 0 ): /* load it if possible */
+                    b_load = 1;
+                    break;
+                case( 1 ): /* skip it */
+                    RIFF_DeleteChunk( p_input, p_ck );
+                    if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
+                    {
+                        return( 0 );
+                    }
+                    b_load = 0;
+                    break;
+                case( 2 ): /* descend into */
+                    RIFF_DeleteChunk( p_input, p_ck );
+                    RIFF_DescendChunk( p_input );
+                    b_load = 0;
+                    break;
+                case( 3 ): /* exit */
+                    RIFF_DeleteChunk( p_input, p_ck );
+                    return( 0 );
+                case( 4 ): /* Error */
+                    RIFF_DeleteChunk( p_input, p_ck );
+                    msg_Err( p_input, "unknown chunk id %4.4s trying to recover", &p_ck->i_id );
+                    msg_Err( p_input, "cannot recover, dying" );
+                    return( -1 );
+            }
+
+        } while( !b_load );
+
+        AVI_ParseStreamHeader( p_ck->i_id, &i_stream, &i_type );
+        /* now check if we really have to load it */
+        if( ( p_info != p_info_master )&&( p_info != p_info_slave ) )
+        {
+            b_load = 0;
+        }
+        else
+        {
+            if( p_info == p_info_master )
+            {
+                b_load = 1;
+            }
+            else
+            {
+                mtime_t i_dpts;
+                i_dpts = AVI_GetPTS( p_info_slave ) - 
+                            AVI_GetPTS( p_info_master );
+                if( i_dpts < 0 ) {i_dpts = - i_dpts; }
+                if( i_dpts < 600000 )
+                {
+                    b_load = 1;
+                } 
+                else
+                {
+                    b_load = 0;
+                }
+            }
+
+        }
+
+        /* now do we can load this chunk ? */ 
+        if( b_load )
+        {
+
+            if( __AVI_GetDataInPES( p_input, &p_pes, p_ck->i_size + 8, 1) != p_ck->i_size + 8)
+            {
+                return( 0 );
+            }
+            p_pes->p_first->p_payload_start += 8;
+            p_pes->i_pes_size -= 8;
+            /* get PTS */
+            p_pes->i_pts = AVI_GetPTS( p_info );
+            AVI_DecodePES( p_input, p_info, p_pes );
+        }
+        else
+        {
+
+            if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
+            {
+                RIFF_DeleteChunk( p_input, p_ck );
+                return( 0 );
+            }
+        } 
+        
+        /* finaly update stream information */
+        if( p_info->header.i_samplesize )
+        {
+            p_info->i_idxposb += p_ck->i_size;
+        }
+        else
+        {
+            p_info->i_idxposc++;
+        }
+        
+        RIFF_DeleteChunk( p_input, p_ck );
+    }
+
+    return( 1 );
+#undef p_info
+}
 /*****************************************************************************
  * AVIDemux: reads and demuxes data packets
  *****************************************************************************
@@ -1831,7 +2134,6 @@ static inline void AVI_DecodePES( input_thread_t *p_input,
 static int AVIDemux( input_thread_t *p_input )
 {
     int i;
-    pes_packet_t *p_pes;
     AVIStreamInfo_t *p_info_master;
     AVIStreamInfo_t *p_info_slave;    
 
@@ -1888,20 +2190,6 @@ static int AVIDemux( input_thread_t *p_input )
         return( -1 );
     }
 
-    /* check for signal from interface */
-    if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
-    { 
-        /* we can supposed that is a seek */
-        /* first wait for empty buffer, arbitrary time */
-        msleep( DEFAULT_PTS_DELAY );
-        /* then try to realign in stream */
-        if( !AVI_ReAlign( p_input, p_info_master ) )
-        {
-            return( 0 ); /* assume EOF */
-        }
-        AVI_SynchroReInit( p_input ); 
-    }
-
     /* manage rate, if not default: skeep audio */
     vlc_mutex_lock( &p_input->stream.stream_lock );
     if( p_input->stream.control.i_rate != p_avi_demux->i_rate )
@@ -1918,58 +2206,19 @@ static int AVIDemux( input_thread_t *p_input )
         p_info_slave = NULL;
     }
 
-    /* take care of newly selected audio ES */
-    if( p_info_master->b_selected )
+    if( p_avi_demux->b_seekable )
     {
-        p_info_master->b_selected = 0;
-        AVI_SynchroReInit( p_input ); 
-    }
-    if( ( p_info_slave )&&( p_info_slave->b_selected ) )
-    {
-        p_info_slave->b_selected = 0;
-        AVI_SynchroReInit( p_input );
-    }
-
-    /* wait for the good time */
-    input_ClockManageRef( p_input,
-                          p_input->stream.p_selected_program,
-                          p_avi_demux->i_pcr /*- DEFAULT_PTS_DELAY / 2 */); 
-    /* calculate pcr, time when we must read the next data */
-    /* 9/100 kludge ->need to convert to 1/1000000 clock unit to 1/90000 */
-    if( p_info_slave )
-    {
-        p_avi_demux->i_pcr =  __MIN( AVI_GetPTS( p_info_master ),
-                                     AVI_GetPTS( p_info_slave ) ) * 9/100;
+        return( AVIDemux_Seekable( p_input,
+                                   p_info_master,
+                                   p_info_slave) );
     }
     else
     {
-        p_avi_demux->i_pcr =  AVI_GetPTS( p_info_master ) * 9/100;
-    }
-
-    /* get video and audio frames */
-    p_pes = AVI_GetFrameInPES( p_input,
+        return( AVIDemux_NotSeekable( p_input,
                                       p_info_master,
-                               100000 ); /* 100 ms */
-
-
-    if( p_info_slave )
-    {
-        pes_packet_t *p_pes_slave;
-        p_pes_slave = AVI_GetFrameInPES( p_input,
-                                         p_info_slave,
-                                         AVI_GetPTS( p_info_master ) -
-                                             AVI_GetPTS( p_info_slave) );
-        AVI_DecodePES( p_input,
-                       p_info_slave,
-                       p_pes_slave );
+                                      p_info_slave ) );
     }
+}
 
-    AVI_DecodePES( p_input,
-                   p_info_master,
-                   p_pes);
-
-    /* at the end ? */
-    return( p_pes ? 1 : 0 );
 
-}
 

plugins/avi/libioRIFF.c

@@ -2,7 +2,7 @@
  * libioRIFF.c : AVI file Stream input module for vlc
  *****************************************************************************
  * Copyright (C) 2001 VideoLAN
- * $Id: libioRIFF.c,v 1.11 2002/06/30 15:07:57 fenrir Exp $
+ * $Id: libioRIFF.c,v 1.12 2002/07/02 17:54:49 fenrir Exp $
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  * 
  * This program is free software; you can redistribute it and/or modify
@@ -62,7 +62,7 @@ int 	__RIFF_SkipBytes(input_thread_t * p_input,int nb)
     data_packet_t *p_pack;
     int i;
     int i_rest;
-    if( p_input->stream.b_seekable )
+    if( ( p_input->stream.b_seekable )&&( p_input->stream.i_method == INPUT_METHOD_FILE ) )
     {
         u32 i_pos;
         __RIFF_TellPos( p_input, &i_pos);
@@ -120,6 +120,7 @@ riffchunk_t     * RIFF_ReadChunk(input_thread_t * p_input)
 	
 	p_riff->p_data = NULL;
 	/* peek to have the begining, 8+8 get i_8bytes */
+
 	if( ( count = input_Peek( p_input, &p_peek, 16 ) ) < 8 )
 	{
 		msg_Err( p_input, "cannot peek()" );
@@ -130,7 +131,7 @@ riffchunk_t     * RIFF_ReadChunk(input_thread_t * p_input)
 	p_riff->i_id = __GetDWLE( p_peek );
 	p_riff->i_size =__GetDWLE( p_peek + 4 );
 	p_riff->i_type = ( count >= 12 ) ? __GetDWLE( p_peek + 8 ) : 0 ;
-    memset( &p_riff->i_8bytes, 8, 0 );
+    memset( &p_riff->i_8bytes, 0, 8 );
     if( count >= 12 )
     {
         memcpy( &p_riff->i_8bytes, p_peek + 8, count - 8 );