]> git.sesse.net Git - vlc/blobdiff - src/input/stream.c
Use var_Inherit* instead of var_CreateGet*.
[vlc] / src / input / stream.c
index 23276e31a9b4a4a43447166ceb0d85c828b95627..f0a90dc1286c09e5587e386aa1222fa53b0db062 100644 (file)
@@ -30,8 +30,7 @@
 
 #include <vlc_common.h>
 #include <vlc_strings.h>
-#include <vlc_osd.h>
-#include <vlc_charset.h>
+#include <vlc_memory.h>
 
 #include <libvlc.h>
 
@@ -100,8 +99,8 @@ typedef struct
 {
     int64_t i_date;
 
-    int64_t i_start;
-    int64_t i_end;
+    uint64_t i_start;
+    uint64_t i_end;
 
     uint8_t *p_buffer;
 
@@ -110,7 +109,7 @@ typedef struct
 typedef struct
 {
     char     *psz_path;
-    int64_t  i_size;
+    uint64_t  i_size;
 
 } access_entry_t;
 
@@ -126,16 +125,16 @@ struct stream_sys_t
 
     stream_read_method_t   method;    /* method to use */
 
-    int64_t     i_pos;      /* Current reading offset */
+    uint64_t     i_pos;      /* Current reading offset */
 
     /* Method 1: pf_block */
     struct
     {
-        int64_t i_start;        /* Offset of block for p_first */
-        int64_t i_offset;       /* Offset for data in p_current */
+        uint64_t i_start;        /* Offset of block for p_first */
+        uint64_t i_offset;       /* Offset for data in p_current */
         block_t *p_current;     /* Current block */
 
-        int     i_size;         /* Total amount of data in the list */
+        uint64_t i_size;         /* Total amount of data in the list */
         block_t *p_first;
         block_t **pp_last;
 
@@ -144,16 +143,16 @@ struct stream_sys_t
     /* Method 2: for pf_read */
     struct
     {
-        int i_offset;   /* Buffer offset in the current track */
-        int i_tk;       /* Current track */
+        unsigned i_offset;   /* Buffer offset in the current track */
+        int      i_tk;       /* Current track */
         stream_track_t tk[STREAM_CACHE_TRACK];
 
         /* Global buffer */
         uint8_t *p_buffer;
 
         /* */
-        int i_used; /* Used since last read */
-        int i_read_size;
+        unsigned i_used; /* Used since last read */
+        unsigned i_read_size;
 
     } stream;
 
@@ -167,13 +166,13 @@ struct stream_sys_t
         bool b_fastseek;  /* From access */
 
         /* Stat about reading data */
-        int64_t i_read_count;
-        int64_t i_bytes;
-        int64_t i_read_time;
+        uint64_t i_read_count;
+        uint64_t i_bytes;
+        uint64_t i_read_time;
 
         /* Stat about seek */
-        int     i_seek_count;
-        int64_t i_seek_time;
+        unsigned i_seek_count;
+        uint64_t i_seek_time;
 
     } stat;
 
@@ -187,14 +186,14 @@ struct stream_sys_t
 /* Method 1: */
 static int  AStreamReadBlock( stream_t *s, void *p_read, unsigned int i_read );
 static int  AStreamPeekBlock( stream_t *s, const uint8_t **p_peek, unsigned int i_read );
-static int  AStreamSeekBlock( stream_t *s, int64_t i_pos );
+static int  AStreamSeekBlock( stream_t *s, uint64_t i_pos );
 static void AStreamPrebufferBlock( stream_t *s );
 static block_t *AReadBlock( stream_t *s, bool *pb_eof );
 
 /* Method 2 */
 static int  AStreamReadStream( stream_t *s, void *p_read, unsigned int i_read );
 static int  AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, unsigned int i_read );
-static int  AStreamSeekStream( stream_t *s, int64_t i_pos );
+static int  AStreamSeekStream( stream_t *s, uint64_t i_pos );
 static void AStreamPrebufferStream( stream_t *s );
 static int  AReadStream( stream_t *s, void *p_read, unsigned int i_read );
 
@@ -202,7 +201,7 @@ static int  AReadStream( stream_t *s, void *p_read, unsigned int i_read );
 static int AStreamControl( stream_t *s, int i_query, va_list );
 static void AStreamDestroy( stream_t *s );
 static void UStreamDestroy( stream_t *s );
-static int  ASeek( stream_t *s, int64_t i_pos );
+static int  ASeek( stream_t *s, uint64_t i_pos );
 
 /****************************************************************************
  * stream_CommonNew: create an empty stream structure
@@ -229,6 +228,7 @@ stream_t *stream_CommonNew( vlc_object_t *p_obj )
 
     return s;
 }
+
 void stream_CommonDelete( stream_t *s )
 {
     if( s->p_text )
@@ -241,10 +241,11 @@ void stream_CommonDelete( stream_t *s )
     vlc_object_release( s );
 }
 
+#undef stream_UrlNew
 /****************************************************************************
  * stream_UrlNew: create a stream from a access
  ****************************************************************************/
-stream_t *__stream_UrlNew( vlc_object_t *p_parent, const char *psz_url )
+stream_t *stream_UrlNew( vlc_object_t *p_parent, const char *psz_url )
 {
     const char *psz_access, *psz_demux;
     char *psz_path;
@@ -258,8 +259,15 @@ stream_t *__stream_UrlNew( vlc_object_t *p_parent, const char *psz_url )
     strcpy( psz_dup, psz_url );
     input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_dup );
 
+    /* Get a weak link to the parent input */
+    /* FIXME: This should probably be removed in favor of a NULL input. */
+    input_thread_t *p_input = (input_thread_t *)vlc_object_find( p_parent, VLC_OBJECT_INPUT, FIND_PARENT );
+    
     /* Now try a real access */
-    p_access = access_New( p_parent, psz_access, psz_demux, psz_path );
+    p_access = access_New( p_parent, p_input, psz_access, psz_demux, psz_path );
+
+    if(p_input)
+        vlc_object_release((vlc_object_t*)p_input);
 
     if( p_access == NULL )
     {
@@ -285,7 +293,8 @@ stream_t *stream_AccessNew( access_t *p_access, char **ppsz_list )
     if( !s )
         return NULL;
 
-    s->psz_path = strdup( p_access->psz_path );
+    s->p_input = p_access->p_input;
+    s->psz_path = strdup( p_access->psz_location );
     s->p_sys = p_sys = malloc( sizeof( *p_sys ) );
     if( !s->psz_path || !s->p_sys )
     {
@@ -330,7 +339,7 @@ stream_t *stream_AccessNew( access_t *p_access, char **ppsz_list )
             goto error;
 
         p_entry->i_size = p_access->info.i_size;
-        p_entry->psz_path = strdup( p_access->psz_path );
+        p_entry->psz_path = strdup( p_access->psz_location );
         if( !p_entry->psz_path )
         {
             free( p_entry );
@@ -348,7 +357,7 @@ stream_t *stream_AccessNew( access_t *p_access, char **ppsz_list )
             if( !psz_name )
                 break;
 
-            access_t *p_tmp = access_New( p_access,
+            access_t *p_tmp = access_New( p_access, p_access->p_input,
                                           p_access->psz_access, "", psz_name );
             if( !p_tmp )
                 continue;
@@ -451,7 +460,6 @@ error:
         free( p_sys->list[--(p_sys->i_list)] );
     free( p_sys->list );
     free( s->p_sys );
-    vlc_object_detach( s );
     stream_CommonDelete( s );
     return NULL;
 }
@@ -463,8 +471,6 @@ static void AStreamDestroy( stream_t *s )
 {
     stream_sys_t *p_sys = s->p_sys;
 
-    vlc_object_detach( s );
-
     if( p_sys->method == STREAM_METHOD_BLOCK )
         block_ChainRelease( p_sys->block.p_first );
     else
@@ -568,14 +574,14 @@ static int AStreamControl( stream_t *s, int i_query, va_list args )
     stream_sys_t *p_sys = s->p_sys;
     access_t     *p_access = p_sys->p_access;
 
-    bool    *p_bool;
-    int64_t *pi_64, i_64;
-    int     i_int;
+    bool     *p_bool;
+    uint64_t *pi_64, i_64;
+    int      i_int;
 
     switch( i_query )
     {
         case STREAM_GET_SIZE:
-            pi_64 = (int64_t*)va_arg( args, int64_t * );
+            pi_64 = va_arg( args, uint64_t * );
             if( s->p_sys->i_list )
             {
                 int i;
@@ -598,12 +604,12 @@ static int AStreamControl( stream_t *s, int i_query, va_list args )
             break;
 
         case STREAM_GET_POSITION:
-            pi_64 = (int64_t*)va_arg( args, int64_t * );
+            pi_64 = va_arg( args, uint64_t * );
             *pi_64 = p_sys->i_pos;
             break;
 
         case STREAM_SET_POSITION:
-            i_64 = (int64_t)va_arg( args, int64_t );
+            i_64 = va_arg( args, uint64_t );
             switch( p_sys->method )
             {
             case STREAM_METHOD_BLOCK:
@@ -678,7 +684,7 @@ static void AStreamPrebufferBlock( stream_t *s )
                          (p_sys->stat.i_read_time + 1);
 
             msg_Dbg( s, "prebuffering done %"PRId64" bytes in %"PRId64"s - "
-                     "%"PRId64" kbytes/s",
+                     "%"PRId64" KiB/s",
                      p_sys->stat.i_bytes,
                      p_sys->stat.i_read_time / INT64_C(1000000),
                      i_byterate / 1024 );
@@ -796,7 +802,7 @@ static int AStreamPeekBlock( stream_t *s, const uint8_t **pp_peek, unsigned int
     /* We need to create a local copy */
     if( p_sys->i_peek < i_read )
     {
-        p_sys->p_peek = realloc( p_sys->p_peek, i_read );
+        p_sys->p_peek = realloc_or_free( p_sys->p_peek, i_read );
         if( !p_sys->p_peek )
         {
             p_sys->i_peek = 0;
@@ -843,7 +849,7 @@ static int AStreamPeekBlock( stream_t *s, const uint8_t **pp_peek, unsigned int
     return i_data;
 }
 
-static int AStreamSeekBlock( stream_t *s, int64_t i_pos )
+static int AStreamSeekBlock( stream_t *s, uint64_t i_pos )
 {
     stream_sys_t *p_sys = s->p_sys;
     access_t   *p_access = p_sys->p_access;
@@ -851,12 +857,12 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos )
     bool b_seek;
 
     /* We already have thoses data, just update p_current/i_offset */
-    if( i_offset >= 0 && i_offset < p_sys->block.i_size )
+    if( i_offset >= 0 && (uint64_t)i_offset < p_sys->block.i_size )
     {
         block_t *b = p_sys->block.p_first;
         int i_current = 0;
 
-        while( i_current + b->i_buffer < i_offset )
+        while( i_current + b->i_buffer < (uint64_t)i_offset )
         {
             i_current += b->i_buffer;
             b = b->p_next;
@@ -950,17 +956,18 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos )
     {
         do
         {
-            /* Read and skip enough data */
-            if( AStreamRefillBlock( s ) )
-                return VLC_EGENERIC;
-
             while( p_sys->block.p_current &&
-                   p_sys->i_pos + p_sys->block.p_current->i_buffer - p_sys->block.i_offset < i_pos )
+                   p_sys->i_pos + p_sys->block.p_current->i_buffer - p_sys->block.i_offset <= i_pos )
             {
                 p_sys->i_pos += p_sys->block.p_current->i_buffer - p_sys->block.i_offset;
                 p_sys->block.p_current = p_sys->block.p_current->p_next;
                 p_sys->block.i_offset = 0;
             }
+            if( !p_sys->block.p_current && AStreamRefillBlock( s ) )
+            {
+                if( p_sys->i_pos != i_pos )
+                    return VLC_EGENERIC;
+            }
         }
         while( p_sys->block.i_start + p_sys->block.i_size < i_pos );
 
@@ -1040,98 +1047,31 @@ static int AStreamRefillBlock( stream_t *s )
  * Method 2:
  ****************************************************************************/
 static int AStreamRefillStream( stream_t *s );
+static int AStreamReadNoSeekStream( stream_t *s, void *p_read, unsigned int i_read );
 
 static int AStreamReadStream( stream_t *s, void *p_read, unsigned int i_read )
 {
     stream_sys_t *p_sys = s->p_sys;
-    stream_track_t *tk = &p_sys->stream.tk[p_sys->stream.i_tk];
-
-    uint8_t *p_data = (uint8_t *)p_read;
-    unsigned int i_data = 0;
 
-    if( tk->i_start >= tk->i_end )
-        return 0; /* EOF */
-
-    if( p_data == NULL )
+    if( !p_read )
     {
-        /* seek within this stream if possible, else use plain old read and discard */
-        stream_sys_t *p_sys = s->p_sys;
-        access_t     *p_access = p_sys->p_access;
+        const uint64_t i_pos_wanted = p_sys->i_pos + i_read;
 
-        bool   b_aseek;
-        access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek );
-        if( b_aseek )
+        if( AStreamSeekStream( s, i_pos_wanted ) )
         {
-            const int64_t i_pos_wanted = p_sys->i_pos + i_read;
-
-            if( AStreamSeekStream( s, i_pos_wanted ) )
-            {
-                if( p_sys->i_pos != i_pos_wanted )
-                    return 0;
-            }
-            return i_read;
-        }
-    }
-
-#ifdef STREAM_DEBUG
-    msg_Dbg( s, "AStreamReadStream: %d pos=%"PRId64" tk=%d start=%"PRId64
-             " offset=%d end=%"PRId64,
-             i_read, p_sys->i_pos, p_sys->stream.i_tk,
-             tk->i_start, p_sys->stream.i_offset, tk->i_end );
-#endif
-
-    while( i_data < i_read )
-    {
-        int i_off = (tk->i_start + p_sys->stream.i_offset) %
-                    STREAM_CACHE_TRACK_SIZE;
-        unsigned int i_current =
-            __MAX(0,__MIN( tk->i_end - tk->i_start - p_sys->stream.i_offset,
-                   STREAM_CACHE_TRACK_SIZE - i_off ));
-        int i_copy = __MIN( i_current, i_read - i_data );
-
-        if( i_copy <= 0 ) break; /* EOF */
-
-        /* Copy data */
-        /* msg_Dbg( s, "AStreamReadStream: copy %d", i_copy ); */
-        if( p_data )
-        {
-            memcpy( p_data, &tk->p_buffer[i_off], i_copy );
-            p_data += i_copy;
-        }
-        i_data += i_copy;
-        p_sys->stream.i_offset += i_copy;
-
-        /* Update pos now */
-        p_sys->i_pos += i_copy;
-
-        /* */
-        p_sys->stream.i_used += i_copy;
-
-        if( tk->i_end - tk->i_start - p_sys->stream.i_offset <= i_read -i_data )
-        {
-            const int i_read_requested = __MAX( __MIN( i_read - i_data,
-                                                       STREAM_READ_ATONCE * 10 ),
-                                                STREAM_READ_ATONCE / 2 );
-
-            if( p_sys->stream.i_used < i_read_requested )
-                p_sys->stream.i_used = i_read_requested;
-
-            if( AStreamRefillStream( s ) )
-            {
-                /* EOF */
-                if( tk->i_start >= tk->i_end ) break;
-            }
+            if( p_sys->i_pos != i_pos_wanted )
+                return 0;
         }
+        return i_read;
     }
-
-    return i_data;
+    return AStreamReadNoSeekStream( s, p_read, i_read );
 }
 
 static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, unsigned int i_read )
 {
     stream_sys_t *p_sys = s->p_sys;
     stream_track_t *tk = &p_sys->stream.tk[p_sys->stream.i_tk];
-    int64_t i_off;
+    uint64_t i_off;
 
     if( tk->i_start >= tk->i_end ) return 0; /* EOF */
 
@@ -1146,19 +1086,21 @@ static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, unsigned int
     if( i_read > STREAM_CACHE_TRACK_SIZE / 2 )
         i_read = STREAM_CACHE_TRACK_SIZE / 2;
 
-    while( tk->i_end - tk->i_start - p_sys->stream.i_offset < i_read )
+    while( tk->i_end < tk->i_start + p_sys->stream.i_offset + i_read )
     {
         if( p_sys->stream.i_used <= 1 )
         {
             /* Be sure we will read something */
-            p_sys->stream.i_used += i_read -
-                (tk->i_end - tk->i_start - p_sys->stream.i_offset);
+            p_sys->stream.i_used += tk->i_start + p_sys->stream.i_offset + i_read - tk->i_end;
         }
         if( AStreamRefillStream( s ) ) break;
     }
 
-    if( tk->i_end - tk->i_start - p_sys->stream.i_offset < i_read )
+    if( tk->i_end < tk->i_start + p_sys->stream.i_offset + i_read )
+    {
         i_read = tk->i_end - tk->i_start - p_sys->stream.i_offset;
+    }
+
 
     /* Now, direct pointer or a copy ? */
     i_off = (tk->i_start + p_sys->stream.i_offset) % STREAM_CACHE_TRACK_SIZE;
@@ -1170,7 +1112,7 @@ static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, unsigned int
 
     if( p_sys->i_peek < i_read )
     {
-        p_sys->p_peek = realloc( p_sys->p_peek, i_read );
+        p_sys->p_peek = realloc_or_free( p_sys->p_peek, i_read );
         if( !p_sys->p_peek )
         {
             p_sys->i_peek = 0;
@@ -1188,146 +1130,218 @@ static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, unsigned int
     return i_read;
 }
 
-static int AStreamSeekStream( stream_t *s, int64_t i_pos )
+static int AStreamSeekStream( stream_t *s, uint64_t i_pos )
 {
     stream_sys_t *p_sys = s->p_sys;
-    access_t     *p_access = p_sys->p_access;
-    bool   b_aseek;
-    bool   b_afastseek;
-    int i_maxth;
-    int i_new;
-    int i;
+
+    stream_track_t *p_current = &p_sys->stream.tk[p_sys->stream.i_tk];
+    access_t *p_access = p_sys->p_access;
+
+    if( p_current->i_start >= p_current->i_end  && i_pos >= p_current->i_end )
+        return 0; /* EOF */
 
 #ifdef STREAM_DEBUG
     msg_Dbg( s, "AStreamSeekStream: to %"PRId64" pos=%"PRId64
              " tk=%d start=%"PRId64" offset=%d end=%"PRId64,
              i_pos, p_sys->i_pos, p_sys->stream.i_tk,
-             p_sys->stream.tk[p_sys->stream.i_tk].i_start,
+             p_current->i_start,
              p_sys->stream.i_offset,
-             p_sys->stream.tk[p_sys->stream.i_tk].i_end );
+             p_current->i_end );
 #endif
 
-
-    /* Seek in our current track ? */
-    if( i_pos >= p_sys->stream.tk[p_sys->stream.i_tk].i_start &&
-        i_pos < p_sys->stream.tk[p_sys->stream.i_tk].i_end )
-    {
-        stream_track_t *tk = &p_sys->stream.tk[p_sys->stream.i_tk];
-#ifdef STREAM_DEBUG
-        msg_Dbg( s, "AStreamSeekStream: current track" );
-#endif
-        p_sys->i_pos = i_pos;
-        p_sys->stream.i_offset = i_pos - tk->i_start;
-
-        /* If there is not enough data left in the track, refill  */
-        /* \todo How to get a correct value for
-         *    - refilling threshold
-         *    - how much to refill
-         */
-        if( (tk->i_end - tk->i_start ) - p_sys->stream.i_offset <
-                                             p_sys->stream.i_read_size )
-        {
-            if( p_sys->stream.i_used < STREAM_READ_ATONCE / 2  )
-            {
-                p_sys->stream.i_used = STREAM_READ_ATONCE / 2 ;
-                AStreamRefillStream( s );
-            }
-        }
-        return VLC_SUCCESS;
-    }
-
+    bool   b_aseek;
     access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek );
-    if( !b_aseek )
+    if( !b_aseek && i_pos < p_current->i_start )
     {
-        /* We can't do nothing */
-        msg_Dbg( s, "AStreamSeekStream: can't seek" );
+        msg_Warn( s, "AStreamSeekStream: can't seek" );
         return VLC_EGENERIC;
     }
 
-    /* Date the current track */
-    p_sys->stream.tk[p_sys->stream.i_tk].i_date = mdate();
+    bool   b_afastseek;
+    access_Control( p_access, ACCESS_CAN_FASTSEEK, &b_afastseek );
 
-    /* Try to reuse already read data */
-    for( i = 0; i < STREAM_CACHE_TRACK; i++ )
-    {
-        stream_track_t *tk = &p_sys->stream.tk[i];
+    /* FIXME compute seek cost (instead of static 'stupid' value) */
+    uint64_t i_skip_threshold;
+    if( b_aseek )
+        i_skip_threshold = b_afastseek ? 128 : 3*p_sys->stream.i_read_size;
+    else
+        i_skip_threshold = INT64_MAX;
 
-        if( i_pos >= tk->i_start && i_pos <= tk->i_end )
-        {
-#ifdef STREAM_DEBUG
-            msg_Dbg( s, "AStreamSeekStream: reusing %d start=%"PRId64
-                     " end=%"PRId64, i, tk->i_start, tk->i_end );
-#endif
+    /* Date the current track */
+    p_current->i_date = mdate();
 
-            /* Seek at the end of the buffer */
-            if( ASeek( s, tk->i_end ) ) return VLC_EGENERIC;
+    /* Search a new track slot */
+    stream_track_t *tk = NULL;
+    int i_tk_idx = -1;
 
-            /* That's it */
-            p_sys->i_pos = i_pos;
-            p_sys->stream.i_tk = i;
-            p_sys->stream.i_offset = i_pos - tk->i_start;
+    /* Prefer the current track */
+    if( p_current->i_start <= i_pos && i_pos <= p_current->i_end + i_skip_threshold )
+    {
+        tk = p_current;
+        i_tk_idx = p_sys->stream.i_tk;
+    }
+    if( !tk )
+    {
+        /* Try to maximize already read data */
+        for( int i = 0; i < STREAM_CACHE_TRACK; i++ )
+        {
+            stream_track_t *t = &p_sys->stream.tk[i];
 
-            if( p_sys->stream.i_used < STREAM_READ_ATONCE )
-                p_sys->stream.i_used = STREAM_READ_ATONCE;
+            if( t->i_start > i_pos || i_pos > t->i_end )
+                continue;
 
-            if( AStreamRefillStream( s ) && i_pos == tk->i_end )
-                return VLC_EGENERIC;
+            if( !tk || tk->i_end < t->i_end )
+            {
+                tk = t;
+                i_tk_idx = i;
+            }
+        }
+    }
+    if( !tk )
+    {
+        /* Use the oldest unused */
+        for( int i = 0; i < STREAM_CACHE_TRACK; i++ )
+        {
+            stream_track_t *t = &p_sys->stream.tk[i];
 
-            return VLC_SUCCESS;
+            if( !tk || tk->i_date > t->i_date )
+            {
+                tk = t;
+                i_tk_idx = i;
+            }
         }
     }
+    assert( i_tk_idx >= 0 && i_tk_idx < STREAM_CACHE_TRACK );
 
-    access_Control( p_access, ACCESS_CAN_SEEK, &b_afastseek );
-    /* FIXME compute seek cost (instead of static 'stupid' value) */
-    i_maxth = __MIN( p_sys->stream.i_read_size, STREAM_READ_ATONCE / 2 );
-    if( !b_afastseek )
-        i_maxth *= 3;
-
-    /* FIXME TODO */
-#if 0
-    /* Search closest segment TODO */
-    for( i = 0; i < STREAM_CACHE_TRACK; i++ )
+    if( tk != p_current )
+        i_skip_threshold = 0;
+    if( tk->i_start <= i_pos && i_pos <= tk->i_end + i_skip_threshold )
     {
-        stream_track_t *tk = &p_sys->stream.tk[i];
-
-        if( i_pos + i_maxth >= tk->i_start )
+#ifdef STREAM_DEBUG
+        msg_Err( s, "AStreamSeekStream: reusing %d start=%"PRId64
+                 " end=%"PRId64"(%s)",
+                 i_tk_idx, tk->i_start, tk->i_end,
+                 tk != p_current ? "seek" : i_pos > tk->i_end ? "skip" : "noseek" );
+#endif
+        if( tk != p_current )
         {
-            msg_Dbg( s, "good segment before current pos, TODO" );
+            assert( b_aseek );
+
+            /* Seek at the end of the buffer
+             * TODO it is stupid to seek now, it would be better to delay it
+             */
+            if( ASeek( s, tk->i_end ) )
+                return VLC_EGENERIC;
         }
-        if( i_pos - i_maxth <= tk->i_end )
+        else if( i_pos > tk->i_end )
         {
-            msg_Dbg( s, "good segment after current pos, TODO" );
+            uint64_t i_skip = i_pos - tk->i_end;
+            while( i_skip > 0 )
+            {
+                const int i_read_max = __MIN( 10 * STREAM_READ_ATONCE, i_skip );
+                if( AStreamReadNoSeekStream( s, NULL, i_read_max ) != i_read_max )
+                    return VLC_EGENERIC;
+                i_skip -= i_read_max;
+            }
         }
     }
+    else
+    {
+#ifdef STREAM_DEBUG
+        msg_Err( s, "AStreamSeekStream: hard seek" );
 #endif
+        /* Nothing good, seek and choose oldest segment */
+        if( ASeek( s, i_pos ) )
+            return VLC_EGENERIC;
 
-    /* Nothing good, seek and choose oldest segment */
-    if( ASeek( s, i_pos ) ) return VLC_EGENERIC;
+        tk->i_start = i_pos;
+        tk->i_end   = i_pos;
+    }
+    p_sys->stream.i_offset = i_pos - tk->i_start;
+    p_sys->stream.i_tk = i_tk_idx;
     p_sys->i_pos = i_pos;
 
-    i_new = 0;
-    for( i = 1; i < STREAM_CACHE_TRACK; i++ )
+    /* If there is not enough data left in the track, refill  */
+    /* TODO How to get a correct value for
+     *    - refilling threshold
+     *    - how much to refill
+     */
+    if( tk->i_end < tk->i_start + p_sys->stream.i_offset + p_sys->stream.i_read_size )
     {
-        if( p_sys->stream.tk[i].i_date < p_sys->stream.tk[i_new].i_date )
-            i_new = i;
+        if( p_sys->stream.i_used < STREAM_READ_ATONCE / 2 )
+            p_sys->stream.i_used = STREAM_READ_ATONCE / 2;
+
+        if( AStreamRefillStream( s ) && i_pos == tk->i_end )
+            return VLC_EGENERIC;
     }
+    return VLC_SUCCESS;
+}
 
-    /* Reset the segment */
-    p_sys->stream.i_tk     = i_new;
-    p_sys->stream.i_offset =  0;
-    p_sys->stream.tk[i_new].i_start = i_pos;
-    p_sys->stream.tk[i_new].i_end   = i_pos;
+static int AStreamReadNoSeekStream( stream_t *s, void *p_read, unsigned int i_read )
+{
+    stream_sys_t *p_sys = s->p_sys;
+    stream_track_t *tk = &p_sys->stream.tk[p_sys->stream.i_tk];
 
-    /* Read data */
-    if( p_sys->stream.i_used < STREAM_READ_ATONCE / 2 )
-        p_sys->stream.i_used = STREAM_READ_ATONCE / 2;
+    uint8_t *p_data = (uint8_t *)p_read;
+    unsigned int i_data = 0;
 
-    if( AStreamRefillStream( s ) )
-        return VLC_EGENERIC;
+    if( tk->i_start >= tk->i_end )
+        return 0; /* EOF */
 
-    return VLC_SUCCESS;
+#ifdef STREAM_DEBUG
+    msg_Dbg( s, "AStreamReadStream: %d pos=%"PRId64" tk=%d start=%"PRId64
+             " offset=%d end=%"PRId64,
+             i_read, p_sys->i_pos, p_sys->stream.i_tk,
+             tk->i_start, p_sys->stream.i_offset, tk->i_end );
+#endif
+
+    while( i_data < i_read )
+    {
+        unsigned i_off = (tk->i_start + p_sys->stream.i_offset) % STREAM_CACHE_TRACK_SIZE;
+        unsigned int i_current =
+            __MIN( tk->i_end - tk->i_start - p_sys->stream.i_offset,
+                   STREAM_CACHE_TRACK_SIZE - i_off );
+        int i_copy = __MIN( i_current, i_read - i_data );
+
+        if( i_copy <= 0 ) break; /* EOF */
+
+        /* Copy data */
+        /* msg_Dbg( s, "AStreamReadStream: copy %d", i_copy ); */
+        if( p_data )
+        {
+            memcpy( p_data, &tk->p_buffer[i_off], i_copy );
+            p_data += i_copy;
+        }
+        i_data += i_copy;
+        p_sys->stream.i_offset += i_copy;
+
+        /* Update pos now */
+        p_sys->i_pos += i_copy;
+
+        /* */
+        p_sys->stream.i_used += i_copy;
+
+        if( tk->i_end + i_data <= tk->i_start + p_sys->stream.i_offset + i_read )
+        {
+            const unsigned i_read_requested = __MAX( __MIN( i_read - i_data,
+                                                            STREAM_READ_ATONCE * 10 ),
+                                                     STREAM_READ_ATONCE / 2 );
+
+            if( p_sys->stream.i_used < i_read_requested )
+                p_sys->stream.i_used = i_read_requested;
+
+            if( AStreamRefillStream( s ) )
+            {
+                /* EOF */
+                if( tk->i_start >= tk->i_end ) break;
+            }
+        }
+    }
+
+    return i_data;
 }
 
+
 static int AStreamRefillStream( stream_t *s )
 {
     stream_sys_t *p_sys = s->p_sys;
@@ -1376,9 +1390,9 @@ static int AStreamRefillStream( stream_t *s )
         tk->i_end += i_read;
 
         /* Windows of STREAM_CACHE_TRACK_SIZE */
-        if( tk->i_end - tk->i_start > STREAM_CACHE_TRACK_SIZE )
+        if( tk->i_start + STREAM_CACHE_TRACK_SIZE < tk->i_end )
         {
-            int i_invalid = tk->i_end - tk->i_start - STREAM_CACHE_TRACK_SIZE;
+            unsigned i_invalid = tk->i_end - tk->i_start - STREAM_CACHE_TRACK_SIZE;
 
             tk->i_start += i_invalid;
             p_sys->stream.i_offset -= i_invalid;
@@ -1412,19 +1426,20 @@ static void AStreamPrebufferStream( stream_t *s )
 
         int64_t i_date = mdate();
         int i_read;
+        int i_buffered = tk->i_end - tk->i_start;
 
-        if( s->b_die || tk->i_end >= STREAM_CACHE_PREBUFFER_SIZE )
+        if( s->b_die || i_buffered >= STREAM_CACHE_PREBUFFER_SIZE )
         {
             int64_t i_byterate;
 
             /* Update stat */
-            p_sys->stat.i_bytes = tk->i_end - tk->i_start;
+            p_sys->stat.i_bytes = i_buffered;
             p_sys->stat.i_read_time = i_date - i_start;
             i_byterate = ( INT64_C(1000000) * p_sys->stat.i_bytes ) /
                          (p_sys->stat.i_read_time+1);
 
             msg_Dbg( s, "pre-buffering done %"PRId64" bytes in %"PRId64"s - "
-                     "%"PRId64" kbytes/s",
+                     "%"PRId64" KiB/s",
                      p_sys->stat.i_bytes,
                      p_sys->stat.i_read_time / INT64_C(1000000),
                      i_byterate / 1024 );
@@ -1432,9 +1447,9 @@ static void AStreamPrebufferStream( stream_t *s )
         }
 
         /* */
-        i_read = STREAM_CACHE_TRACK_SIZE - tk->i_end;
-        i_read = __MIN( p_sys->stream.i_read_size, i_read );
-        i_read = AReadStream( s, &tk->p_buffer[tk->i_end], i_read );
+        i_read = STREAM_CACHE_TRACK_SIZE - i_buffered;
+        i_read = __MIN( (int)p_sys->stream.i_read_size, i_read );
+        i_read = AReadStream( s, &tk->p_buffer[i_buffered], i_read );
         if( i_read <  0 )
             continue;
         else if( i_read == 0 )
@@ -1527,13 +1542,11 @@ char *stream_ReadLine( stream_t *s )
                 }
 
                 /* FIXME that's UGLY */
-                input_thread_t *p_input;
-                p_input = (input_thread_t *)vlc_object_find( s, VLC_OBJECT_INPUT, FIND_PARENT );
+                input_thread_t *p_input = s->p_input;
                 if( p_input != NULL)
                 {
                     var_Create( p_input, "subsdec-encoding", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
                     var_SetString( p_input, "subsdec-encoding", "UTF-8" );
-                    vlc_object_release( p_input );
                 }
             }
         }
@@ -1553,42 +1566,46 @@ char *stream_ReadLine( stream_t *s )
         {
             /* UTF-8: 0A <LF> */
             psz_eol = memchr( p_data, '\n', i_data );
+            if( psz_eol == NULL )
+                /* UTF-8: 0D <CR> */
+                psz_eol = memchr( p_data, '\r', i_data );
         }
         else
         {
-            const uint8_t *p = p_data;
-            const uint8_t *p_last = p + i_data - s->p_text->i_char_width;
+            const uint8_t *p_last = p_data + i_data - s->p_text->i_char_width;
+            uint16_t eol = s->p_text->b_little_endian ? 0x0A00 : 0x00A0;
 
-            if( s->p_text->i_char_width == 2 )
+            assert( s->p_text->i_char_width == 2 );
+            psz_eol = NULL;
+            /* UTF-16: 000A <LF> */
+            for( const uint8_t *p = p_data; p <= p_last; p += 2 )
             {
-                if( s->p_text->b_little_endian == true)
-                {
-                    /* UTF-16LE: 0A 00 <LF> */
-                    while( p <= p_last && ( p[0] != 0x0A || p[1] != 0x00 ) )
-                        p += 2;
-                }
-                else
+                if( U16_AT( p ) == eol )
                 {
-                    /* UTF-16BE: 00 0A <LF> */
-                    while( p <= p_last && ( p[1] != 0x0A || p[0] != 0x00 ) )
-                        p += 2;
+                     psz_eol = (char *)p + 1;
+                     break;
                 }
             }
 
-            if( p > p_last )
-            {
-                psz_eol = NULL;
-            }
-            else
-            {
-                psz_eol = (char *)p + ( s->p_text->i_char_width - 1 );
+            if( psz_eol == NULL )
+            {   /* UTF-16: 000D <CR> */
+                eol = s->p_text->b_little_endian ? 0x0D00 : 0x00D0;
+                for( const uint8_t *p = p_data; p <= p_last; p += 2 )
+                {
+                    if( U16_AT( p ) == eol )
+                    {
+                        psz_eol = (char *)p + 1;
+                        break;
+                    }
+                }
             }
         }
 
         if( psz_eol )
         {
             i_data = (psz_eol - (char *)p_data) + 1;
-            p_line = realloc( p_line, i_line + i_data + s->p_text->i_char_width ); /* add \0 */
+            p_line = realloc_or_free( p_line,
+                     i_line + i_data + s->p_text->i_char_width ); /* add \0 */
             if( !p_line )
                 goto error;
             i_data = stream_Read( s, &p_line[i_line], i_data );
@@ -1601,7 +1618,8 @@ char *stream_ReadLine( stream_t *s )
         }
 
         /* Read data (+1 for easy \0 append) */
-        p_line = realloc( p_line, i_line + STREAM_PROBE_LINE + s->p_text->i_char_width );
+        p_line = realloc_or_free( p_line,
+                       i_line + STREAM_PROBE_LINE + s->p_text->i_char_width );
         if( !p_line )
             goto error;
         i_data = stream_Read( s, &p_line[i_line], STREAM_PROBE_LINE );
@@ -1710,7 +1728,7 @@ static int AReadStream( stream_t *s, void *p_read, unsigned int i_read )
 
         msg_Dbg( s, "opening input `%s'", psz_name );
 
-        p_list_access = access_New( s, p_access->psz_access, "", psz_name );
+        p_list_access = access_New( s, s->p_input, p_access->psz_access, "", psz_name );
 
         if( !p_list_access ) return 0;
 
@@ -1782,7 +1800,7 @@ static block_t *AReadBlock( stream_t *s, bool *pb_eof )
 
         msg_Dbg( s, "opening input `%s'", psz_name );
 
-        p_list_access = access_New( s, p_access->psz_access, "", psz_name );
+        p_list_access = access_New( s, s->p_input, p_access->psz_access, "", psz_name );
 
         if( !p_list_access ) return 0;
 
@@ -1811,7 +1829,7 @@ static block_t *AReadBlock( stream_t *s, bool *pb_eof )
     return p_block;
 }
 
-static int ASeek( stream_t *s, int64_t i_pos )
+static int ASeek( stream_t *s, uint64_t i_pos )
 {
     stream_sys_t *p_sys = s->p_sys;
     access_t *p_access = p_sys->p_access;
@@ -1837,7 +1855,7 @@ static int ASeek( stream_t *s, int64_t i_pos )
         if( i != p_sys->i_list_index && i != 0 )
         {
             p_list_access =
-                access_New( s, p_access->psz_access, "", psz_name );
+                access_New( s, s->p_input, p_access->psz_access, "", psz_name );
         }
         else if( i != p_sys->i_list_index )
         {