# include "config.h"
#endif
-#include <vlc/vlc.h>
+#include <dirent.h>
+
+#include <vlc_common.h>
+#include <vlc_strings.h>
+#include <vlc_osd.h>
+#include <vlc_charset.h>
+
+#include <assert.h>
#include "input_internal.h"
#undef STREAM_DEBUG
/* TODO:
- * - tune the 2 methods
+ * - tune the 2 methods (block/stream)
* - compute cost for seek
* - improve stream mode seeking with closest segments
* - ...
+ * - Maybe remove (block/stream) in favour of immediate
*/
/* Two methods:
* One linked list of data read
* - using pf_read
* More complex scheme using mutliple track to avoid seeking
+ * - using directly the access (only indirection for peeking).
+ * This method is known to introduce much less latency.
+ * It should probably defaulted (instead of the stream method (2)).
*/
/* How many tracks we have, currently only used for stream mode */
* We get blocks and put them in the linked list.
* We release blocks once the total size is bigger than CACHE_BLOCK_SIZE
*/
-#define STREAM_DATA_WAIT 40000 /* Time between before a pf_block retry */
/* Method2: A bit more complex, for pf_read
* - We use ring buffers, only one if unseekable, all if seekable
} access_entry_t;
+typedef enum stream_read_method_t
+{
+ STREAM_METHOD_IMMEDIATE,
+ STREAM_METHOD_BLOCK,
+ STREAM_METHOD_STREAM
+} stream_read_method_t;
+
struct stream_sys_t
{
access_t *p_access;
- bool b_block; /* Block method (1) or stream */
+ stream_read_method_t method; /* method to use */
int64_t i_pos; /* Current reading offset */
struct
{
int64_t i_start; /* Offset of block for p_first */
- int i_offset; /* Offset for data in p_current */
+ int64_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 */
} stream;
+ /* Method 3: for pf_read */
+ struct
+ {
+ int64_t i_end;
+ uint8_t *p_buffer;
+ } immediate;
+
/* Peek temporary buffer */
- int i_peek;
+ unsigned int i_peek;
uint8_t *p_peek;
/* Stat for both method */
/* Preparse mode ? */
bool b_quick;
+
+ /* */
+ struct
+ {
+ bool b_active;
+
+ FILE *f; /* TODO it could be replaced by access_output_t one day */
+ bool b_error;
+ } record;
};
/* Method 1: */
-static int AStreamReadBlock( stream_t *s, void *p_read, int i_read );
-static int AStreamPeekBlock( stream_t *s, const uint8_t **p_peek, int i_read );
+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 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, int i_read );
-static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, int i_read );
+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 void AStreamPrebufferStream( stream_t *s );
-static int AReadStream( stream_t *s, void *p_read, int i_read );
+static int AReadStream( stream_t *s, void *p_read, unsigned int i_read );
+
+/* Method 3 */
+static int AStreamReadImmediate( stream_t *s, void *p_read, unsigned int i_read );
+static int AStreamPeekImmediate( stream_t *s, const uint8_t **pp_peek, unsigned int i_read );
+static int AStreamSeekImmediate( stream_t *s, int64_t i_pos );
/* Common */
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 ARecordSetState( stream_t *s, bool b_record, const char *psz_extension );
+static void ARecordWrite( stream_t *s, const uint8_t *p_buffer, size_t i_buffer );
+/****************************************************************************
+ * Method 3 helpers:
+ ****************************************************************************/
+
+static inline int64_t stream_buffered_size( stream_t *s )
+{
+ return s->p_sys->immediate.i_end;
+}
+
+static inline void stream_buffer_empty( stream_t *s, int length )
+{
+ length = __MAX( stream_buffered_size( s ), length );
+ if( length )
+ {
+ memmove( s->p_sys->immediate.p_buffer,
+ s->p_sys->immediate.p_buffer + length,
+ stream_buffered_size( s ) - length );
+ }
+ s->p_sys->immediate.i_end -= length;
+}
+
+static inline void stream_buffer_fill( stream_t *s, int length )
+{
+ s->p_sys->immediate.i_end += length;
+}
+
+static inline uint8_t * stream_buffer( stream_t *s )
+{
+ return s->p_sys->immediate.p_buffer;
+}
/****************************************************************************
* stream_UrlNew: create a stream from a access
access_t *p_access;
stream_t *p_res;
- if( !psz_url ) return 0;
+ if( !psz_url )
+ return NULL;
- char psz_dup[strlen (psz_url) + 1];
- strcpy (psz_dup, psz_url);;
- MRLSplit( psz_dup, &psz_access, &psz_demux, &psz_path );
+ char psz_dup[strlen( psz_url ) + 1];
+ strcpy( psz_dup, psz_url );
+ input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_dup );
/* Now try a real access */
p_access = access_New( p_parent, psz_access, psz_demux, psz_path );
s->p_sys = p_sys = malloc( sizeof( stream_sys_t ) );
if( p_sys == NULL )
- {
- msg_Err( s, "Out of memory when allocating stream_sys_t" );
goto error;
- }
/* UTF16 and UTF32 text file conversion */
s->i_char_width = 1;
/* Common field */
p_sys->p_access = p_access;
- p_sys->b_block = p_access->pf_block ? true : false;
+ if( p_access->pf_block )
+ p_sys->method = STREAM_METHOD_BLOCK;
+ else if( var_CreateGetBool( s, "use-stream-immediate" ) )
+ p_sys->method = STREAM_METHOD_IMMEDIATE;
+ else
+ p_sys->method = STREAM_METHOD_STREAM;
+
+ p_sys->record.b_active = false;
+
p_sys->i_pos = p_access->info.i_pos;
/* Stats */
{
access_entry_t *p_entry = malloc( sizeof(access_entry_t) );
if( p_entry == NULL )
- {
- msg_Err( s, "Out of memory when allocating access_entry_t" );
goto error;
- }
char *psz_name, *psz_parser = psz_name = psz_list;
p_sys->p_list_access = p_access;
p_entry->psz_path = strdup( p_access->psz_path );
if( p_entry->psz_path == NULL )
{
- msg_Err( s, "Out of memory when duplicating p_access->psz_path" );
free( p_entry );
goto error;
}
p_entry = malloc( sizeof(access_entry_t) );
if( p_entry == NULL )
- {
- msg_Err( p_access, "Out of memory when allocating access_entry_t" );
goto error;
- }
p_entry->i_size = p_tmp->info.i_size;
p_entry->psz_path = psz_name;
TAB_APPEND( p_sys->i_list, p_sys->list, p_entry );
p_sys->i_peek = 0;
p_sys->p_peek = NULL;
- if( p_sys->b_block )
+ if( p_sys->method == STREAM_METHOD_BLOCK )
{
+ msg_Dbg( s, "Using AStream*Block" );
s->pf_read = AStreamReadBlock;
s->pf_peek = AStreamPeekBlock;
goto error;
}
}
+ else if( p_sys->method == STREAM_METHOD_IMMEDIATE )
+ {
+ msg_Dbg( s, "Using AStream*Immediate" );
+
+ s->pf_read = AStreamReadImmediate;
+ s->pf_peek = AStreamPeekImmediate;
+
+ /* Allocate/Setup our tracks (useful to peek)*/
+ p_sys->immediate.i_end = 0;
+ p_sys->immediate.p_buffer = malloc( STREAM_CACHE_SIZE );
+
+ msg_Dbg( s, "p_buffer %p-%p",
+ p_sys->immediate.p_buffer,
+ &p_sys->immediate.p_buffer[STREAM_CACHE_SIZE] );
+
+ if( p_sys->immediate.p_buffer == NULL )
+ {
+ msg_Err( s, "Out of memory when allocating stream cache (%d bytes)",
+ STREAM_CACHE_SIZE );
+ goto error;
+ }
+ }
else
{
int i;
+ assert( p_sys->method == STREAM_METHOD_STREAM );
+
+ msg_Dbg( s, "Using AStream*Stream" );
+
s->pf_read = AStreamReadStream;
s->pf_peek = AStreamPeekStream;
return s;
error:
- if( p_sys->b_block )
+ if( p_sys->method == STREAM_METHOD_BLOCK )
{
/* Nothing yet */
}
vlc_object_detach( s );
- if( p_sys->b_block ) block_ChainRelease( p_sys->block.p_first );
- else free( p_sys->stream.p_buffer );
+ if( p_sys->record.b_active )
+ ARecordSetState( s, false, NULL );
+
+ if( p_sys->method == STREAM_METHOD_BLOCK )
+ block_ChainRelease( p_sys->block.p_first );
+ else if( p_sys->method == STREAM_METHOD_IMMEDIATE )
+ free( p_sys->immediate.p_buffer );
+ else
+ free( p_sys->stream.p_buffer );
free( p_sys->p_peek );
{
free( p_sys->list[p_sys->i_list]->psz_path );
free( p_sys->list[p_sys->i_list] );
- free( p_sys->list );
}
- free( s->p_sys );
+ free( p_sys->list );
+ free( p_sys );
+
vlc_object_release( s );
}
static void UStreamDestroy( stream_t *s )
{
- access_t *p_access = (access_t*)vlc_object_find( s, VLC_OBJECT_ACCESS, FIND_PARENT );
+ access_t *p_access = (access_t *)s->p_parent;
AStreamDestroy( s );
- vlc_object_release( p_access );
access_Delete( p_access );
}
p_sys->i_pos = p_sys->p_access->info.i_pos;
- if( p_sys->b_block )
+ if( p_sys->method == STREAM_METHOD_BLOCK )
{
block_ChainRelease( p_sys->block.p_first );
/* Do the prebuffering */
AStreamPrebufferBlock( s );
}
+ else if( p_sys->method == STREAM_METHOD_IMMEDIATE )
+ {
+ stream_buffer_empty( s, stream_buffered_size( s ) );
+ }
else
{
int i;
+ assert( p_sys->method == STREAM_METHOD_STREAM );
+
/* Setup our tracks */
p_sys->stream.i_offset = 0;
p_sys->stream.i_tk = 0;
access_t *p_access = p_sys->p_access;
bool *p_bool;
+ bool b_bool;
+ const char *psz_string;
int64_t *pi_64, i_64;
int i_int;
case STREAM_SET_POSITION:
i_64 = (int64_t)va_arg( args, int64_t );
- if( p_sys->b_block )
+ switch( p_sys->method )
+ {
+ case STREAM_METHOD_BLOCK:
return AStreamSeekBlock( s, i_64 );
- else
+ case STREAM_METHOD_IMMEDIATE:
+ return AStreamSeekImmediate( s, i_64 );
+ case STREAM_METHOD_STREAM:
return AStreamSeekStream( s, i_64 );
+ default:
+ assert(0);
+ return VLC_EGENERIC;
+ }
case STREAM_GET_MTU:
return VLC_EGENERIC;
case STREAM_GET_CONTENT_TYPE:
return access_Control( p_access, ACCESS_GET_CONTENT_TYPE,
va_arg( args, char ** ) );
+ case STREAM_SET_RECORD_STATE:
+ b_bool = (bool)va_arg( args, int );
+ psz_string = NULL;
+ if( b_bool )
+ psz_string = (const char*)va_arg( args, const char* );
+ return ARecordSetState( s, b_bool, psz_string );
default:
msg_Err( s, "invalid stream_vaControl query=0x%x", i_query );
return VLC_SUCCESS;
}
+/****************************************************************************
+ * ARecord*: record stream functions
+ ****************************************************************************/
+static int ARecordStart( stream_t *s, const char *psz_extension )
+{
+ stream_sys_t *p_sys = s->p_sys;
+
+ char *psz_file;
+ FILE *f;
+
+ /* */
+ if( !psz_extension )
+ psz_extension = "dat";
+
+ /* Retreive path */
+ char *psz_path = var_CreateGetString( s, "input-record-path" );
+ if( !psz_path || *psz_path == '\0' )
+ {
+ free( psz_path );
+ psz_path = strdup( config_GetHomeDir() );
+ }
+
+ if( !psz_path )
+ return VLC_ENOMEM;
+
+ /* Create file name
+ * TODO allow prefix configuration */
+ psz_file = input_CreateFilename( VLC_OBJECT(s), psz_path, INPUT_RECORD_PREFIX, psz_extension );
+
+ free( psz_path );
+ if( !psz_file )
+ return VLC_ENOMEM;
+
+ f = utf8_fopen( psz_file, "wb" );
+ if( !f )
+ {
+ free( psz_file );
+ return VLC_EGENERIC;
+ }
+ msg_Dbg( s, "Recording into %s", psz_file );
+ free( psz_file );
+
+ /* */
+ p_sys->record.f = f;
+ p_sys->record.b_active = true;
+ p_sys->record.b_error = false;
+ return VLC_SUCCESS;
+}
+static int ARecordStop( stream_t *s )
+{
+ stream_sys_t *p_sys = s->p_sys;
+
+ assert( p_sys->record.b_active );
+
+ msg_Dbg( s, "Recording completed" );
+ fclose( p_sys->record.f );
+ p_sys->record.b_active = false;
+ return VLC_SUCCESS;
+}
+
+static int ARecordSetState( stream_t *s, bool b_record, const char *psz_extension )
+{
+ stream_sys_t *p_sys = s->p_sys;
+
+ if( !!p_sys->record.b_active == !!b_record )
+ return VLC_SUCCESS;
+
+ if( b_record )
+ return ARecordStart( s, psz_extension );
+ else
+ return ARecordStop( s );
+}
+static void ARecordWrite( stream_t *s, const uint8_t *p_buffer, size_t i_buffer )
+{
+ stream_sys_t *p_sys = s->p_sys;
+
+ assert( p_sys->record.b_active );
+
+ if( i_buffer > 0 )
+ {
+ const bool b_previous_error = p_sys->record.b_error;
+ const size_t i_written = fwrite( p_buffer, 1, i_buffer, p_sys->record.f );
+
+ p_sys->record.b_error = i_written != i_buffer;
+
+ /* TODO maybe a intf_UserError or something like that ? */
+ if( p_sys->record.b_error && !b_previous_error )
+ msg_Err( s, "Failed to record data (begin)" );
+ else if( !p_sys->record.b_error && b_previous_error )
+ msg_Err( s, "Failed to record data (end)" );
+ }
+}
/****************************************************************************
* Method 1:
/* Fetch a block */
if( ( b = AReadBlock( s, &b_eof ) ) == NULL )
{
- if( b_eof ) break;
-
- msleep( STREAM_DATA_WAIT );
+ if( b_eof )
+ break;
continue;
}
static int AStreamRefillBlock( stream_t *s );
-static int AStreamReadBlock( stream_t *s, void *p_read, int i_read )
+static int AStreamReadBlock( stream_t *s, void *p_read, unsigned int i_read )
{
stream_sys_t *p_sys = s->p_sys;
- uint8_t *p_data= (uint8_t*)p_read;
- int i_data = 0;
+ uint8_t *p_data = p_read;
+ uint8_t *p_record = p_data;
+ unsigned int i_data = 0;
/* It means EOF */
if( p_sys->block.p_current == NULL )
return 0;
- if( p_read == NULL )
+ if( p_sys->record.b_active && !p_data )
+ p_record = p_data = malloc( i_read );
+
+ if( p_data == NULL )
{
/* seek within this stream if possible, else use plain old read and discard */
stream_sys_t *p_sys = s->p_sys;
{
int i_current =
p_sys->block.p_current->i_buffer - p_sys->block.i_offset;
- int i_copy = __MIN( i_current, i_read - i_data);
+ unsigned int i_copy = __MIN( (unsigned int)__MAX(i_current,0), i_read - i_data);
/* Copy data */
if( p_data )
}
}
+ if( p_sys->record.b_active )
+ {
+ if( i_data > 0 && p_record != NULL)
+ ARecordWrite( s, p_record, i_data );
+ if( !p_read )
+ free( p_record );
+ }
+
p_sys->i_pos += i_data;
return i_data;
}
-static int AStreamPeekBlock( stream_t *s, const uint8_t **pp_peek, int i_read )
+static int AStreamPeekBlock( stream_t *s, const uint8_t **pp_peek, unsigned int i_read )
{
stream_sys_t *p_sys = s->p_sys;
uint8_t *p_data;
- int i_data = 0;
+ unsigned int i_data = 0;
block_t *b;
- int i_offset;
+ unsigned int i_offset;
if( p_sys->block.p_current == NULL ) return 0; /* EOF */
while( b && i_data < i_read )
{
- int i_current = b->i_buffer - i_offset;
+ unsigned int i_current = __MAX(b->i_buffer - i_offset,0);
int i_copy = __MIN( i_current, i_read - i_data );
memcpy( p_data, &b->p_buffer[i_offset], i_copy );
}
else
{
- /* Read enough data */
- while( p_sys->block.i_start + p_sys->block.i_size < 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 < 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->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;
}
}
+ while( p_sys->block.i_start + p_sys->block.i_size < i_pos );
p_sys->block.i_offset = i_pos - p_sys->i_pos;
p_sys->i_pos = i_pos;
{
bool b_eof;
- if( s->b_die ) return VLC_EGENERIC;
-
+ if( s->b_die )
+ return VLC_EGENERIC;
/* Fetch a block */
- if( ( b = AReadBlock( s, &b_eof ) ) ) break;
-
- if( b_eof ) return VLC_EGENERIC;
-
- msleep( STREAM_DATA_WAIT );
+ if( ( b = AReadBlock( s, &b_eof ) ) )
+ break;
+ if( b_eof )
+ return VLC_EGENERIC;
}
while( b )
****************************************************************************/
static int AStreamRefillStream( stream_t *s );
-static int AStreamReadStream( stream_t *s, void *p_read, 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;
- int i_data = 0;
+ uint8_t *p_record = p_data;
+ unsigned int i_data = 0;
- if( tk->i_start >= tk->i_end ) return 0; /* EOF */
+ if( tk->i_start >= tk->i_end )
+ return 0; /* EOF */
+
+ if( p_sys->record.b_active && !p_data )
+ p_record = p_data = malloc( i_read );
- if( p_read == NULL )
+ if( p_data == NULL )
{
/* 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;
- bool b_aseek;
- access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek );
- if( b_aseek )
- return AStreamSeekStream( s, p_sys->i_pos + i_read ) ? 0 : i_read;
+
+ /* seeking after EOF is not what we want */
+ if( !( p_access->info.b_eof ) )
+ {
+ bool b_aseek;
+ access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek );
+ if( b_aseek )
+ return AStreamSeekStream( s, p_sys->i_pos + i_read ) ? 0 : i_read;
+ }
}
#ifdef STREAM_DEBUG
{
int i_off = (tk->i_start + p_sys->stream.i_offset) %
STREAM_CACHE_TRACK_SIZE;
- int i_current =
- __MIN( tk->i_end - tk->i_start - p_sys->stream.i_offset,
- STREAM_CACHE_TRACK_SIZE - i_off );
+ 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 */
}
}
+ if( p_sys->record.b_active )
+ {
+ if( i_data > 0 && p_record != NULL)
+ ARecordWrite( s, p_record, i_data );
+ if( !p_read )
+ free( p_record );
+ }
+
return i_data;
}
-static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, int 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];
/* msg_Dbg( s, "AStreamRefillStream: read=%d", i_read ); */
if( i_read < 0 )
{
- msleep( STREAM_DATA_WAIT );
continue;
}
else if( i_read == 0 )
{
- if( !b_read ) return VLC_EGENERIC;
+ if( !b_read )
+ return VLC_EGENERIC;
return VLC_SUCCESS;
}
b_read = true;
i_read = __MIN( p_sys->stream.i_read_size, i_read );
i_read = AReadStream( s, &tk->p_buffer[tk->i_end], i_read );
if( i_read < 0 )
- {
- msleep( STREAM_DATA_WAIT );
continue;
- }
else if( i_read == 0 )
- {
- /* EOF */
- break;
- }
+ break; /* EOF */
if( i_first == 0 )
{
}
}
+/****************************************************************************
+ * Method 3:
+ ****************************************************************************/
+
+static int AStreamReadImmediate( stream_t *s, void *p_read, unsigned int i_read )
+{
+ stream_sys_t *p_sys = s->p_sys;
+ uint8_t *p_data= (uint8_t*)p_read;
+ uint8_t *p_record = p_data;
+ unsigned int i_data;
+
+#ifdef STREAM_DEBUG
+ msg_Dbg( s, "AStreamReadImmediate p_read=%p i_read=%d",
+ p_read, i_read );
+#endif
+
+ if( p_sys->record.b_active && !p_data )
+ p_record = p_data = malloc( i_read );
+
+ /* First, check if we already have some data in the buffer,
+ * that we could copy directly */
+ i_data = __MIN( stream_buffered_size( s ), i_read );
+ if( i_data > 0 )
+ {
+#ifdef STREAM_DEBUG
+ msg_Dbg( s, "AStreamReadImmediate: copy %u from %p", i_data, stream_buffer( s ) );
+#endif
+
+ assert( i_data <= STREAM_CACHE_SIZE );
+
+ if( p_data )
+ {
+ memcpy( p_data, stream_buffer( s ), i_data );
+ p_data += i_data;
+ }
+ }
+
+ /* Now that we've read our buffer we don't need its i_copy bytes */
+ stream_buffer_empty( s, i_data );
+
+ /* Now check if we have still to really read some data */
+ while( i_data < i_read )
+ {
+ const unsigned int i_to_read = i_read - i_data;
+ int i_result;
+
+ if( p_data )
+ {
+ i_result = AReadStream( s, p_data, i_to_read );
+ }
+ else
+ {
+ void *p_dummy = malloc( i_to_read );
+
+ if( !p_dummy )
+ break;
+
+ i_result = AReadStream( s, p_dummy, i_to_read );
+
+ free( p_dummy );
+ }
+ if( i_result <= 0 )
+ break;
+
+ p_sys->i_pos += i_data;
+ if( p_data )
+ p_data += i_result;
+ i_data += i_result;
+ }
+
+ if( p_sys->record.b_active )
+ {
+ if( i_data > 0 && p_record != NULL)
+ ARecordWrite( s, p_record, i_data );
+ if( !p_read )
+ free( p_record );
+ }
+ return i_data;
+}
+
+static int AStreamPeekImmediate( stream_t *s, const uint8_t **pp_peek, unsigned int i_read )
+{
+#ifdef STREAM_DEBUG
+ msg_Dbg( s, "AStreamPeekImmediate: %d size=%"PRId64,
+ i_read, size_buffered_size( s ) );
+#endif
+
+ /* Avoid problem, but that shouldn't happen
+ * FIXME yes it can */
+ if( i_read > STREAM_CACHE_SIZE / 2 )
+ i_read = STREAM_CACHE_SIZE / 2;
+
+ int i_to_read = i_read - stream_buffered_size( s );
+ if( i_to_read > 0 )
+ {
+#ifdef STREAM_DEBUG
+ msg_Dbg( s, "AStreamPeekImmediate: Reading %d",
+ i_to_read );
+#endif
+ i_to_read = AReadStream( s, stream_buffer( s ) + stream_buffered_size( s ),
+ i_to_read );
+
+ if( i_to_read > 0 )
+ stream_buffer_fill( s, i_to_read );
+ }
+
+ *pp_peek = stream_buffer( s );
+
+ return __MIN( stream_buffered_size( s ), i_read );
+}
+
+static int AStreamSeekImmediate( stream_t *s, int64_t i_pos )
+{
+ stream_sys_t *p_sys = s->p_sys;
+ access_t *p_access = p_sys->p_access;
+ bool b_aseek;
+
+#ifdef STREAM_DEBUG
+ msg_Dbg( s, "AStreamSeekImmediate to %"PRId64" pos=%"PRId64
+ i_pos, p_sys->i_pos );
+#endif
+
+ access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek );
+ if( !b_aseek )
+ {
+ /* We can't do nothing */
+ msg_Dbg( s, "AStreamSeekImmediate: can't seek" );
+ return VLC_EGENERIC;
+ }
+
+ /* Just reset our buffer */
+ stream_buffer_empty( s, stream_buffered_size( s ) );
+
+ if( ASeek( s, i_pos ) )
+ return VLC_EGENERIC;
+
+ return VLC_SUCCESS;
+}
/****************************************************************************
* stream_ReadLine:
*/
#define STREAM_PROBE_LINE 2048
#define STREAM_LINE_MAX (2048*100)
-char * stream_ReadLine( stream_t *s )
+char *stream_ReadLine( stream_t *s )
{
char *p_line = NULL;
int i_line = 0, i_read = 0;
/* BOM detection */
i_pos = stream_Tell( s );
- if( i_pos == 0 && i_data > 4 )
+ if( i_pos == 0 && i_data >= 3 )
{
int i_bom_size = 0;
- char *psz_encoding = NULL;
+ const char *psz_encoding = NULL;
- if( p_data[0] == 0xEF && p_data[1] == 0xBB && p_data[2] == 0xBF )
+ if( !memcmp( p_data, "\xEF\xBB\xBF", 3 ) )
{
- psz_encoding = strdup( "UTF-8" );
+ psz_encoding = "UTF-8";
i_bom_size = 3;
}
- else if( p_data[0] == 0x00 && p_data[1] == 0x00 )
+ else if( !memcmp( p_data, "\xFF\xFE", 2 ) )
{
- if( p_data[2] == 0xFE && p_data[3] == 0xFF )
- {
- psz_encoding = strdup( "UTF-32BE" );
- s->i_char_width = 4;
- i_bom_size = 4;
- }
- }
- else if( p_data[0] == 0xFF && p_data[1] == 0xFE )
- {
- if( p_data[2] == 0x00 && p_data[3] == 0x00 )
- {
- psz_encoding = strdup( "UTF-32LE" );
- s->i_char_width = 4;
- s->b_little_endian = true;
- i_bom_size = 4;
- }
- else
- {
- psz_encoding = strdup( "UTF-16LE" );
- s->b_little_endian = true;
- s->i_char_width = 2;
- i_bom_size = 2;
- }
+ psz_encoding = "UTF-16LE";
+ s->b_little_endian = true;
+ s->i_char_width = 2;
+ i_bom_size = 2;
}
- else if( p_data[0] == 0xFE && p_data[1] == 0xFF )
+ else if( !memcmp( p_data, "\xFE\xFF", 2 ) )
{
- psz_encoding = strdup( "UTF-16BE" );
+ psz_encoding = "UTF-16BE";
s->i_char_width = 2;
i_bom_size = 2;
}
var_SetString( p_input, "subsdec-encoding", "UTF-8" );
vlc_object_release( p_input );
}
- free( psz_encoding );
}
}
p += 2;
}
}
- else if( s->i_char_width == 4 )
- {
- if( s->b_little_endian == true)
- {
- /* UTF-32LE: 0A 00 00 00 <LF> */
- while( p <= p_last && ( p[0] != 0x0A || p[1] != 0x00 ||
- p[2] != 0x00 || p[3] != 0x00 ) )
- p += 4;
- }
- else
- {
- /* UTF-32BE: 00 00 00 0A <LF> */
- while( p <= p_last && ( p[3] != 0x0A || p[2] != 0x00 ||
- p[1] != 0x00 || p[0] != 0x00 ) )
- p += 4;
- }
- }
if( p > p_last )
{
i_data = (psz_eol - (char *)p_data) + 1;
p_line = realloc( p_line, i_line + i_data + s->i_char_width ); /* add \0 */
if( !p_line )
- {
- msg_Err( s, "Out of memory when reallocating p_line" );
goto error;
- }
i_data = stream_Read( s, &p_line[i_line], i_data );
if( i_data <= 0 ) break; /* Hmmm */
i_line += i_data - s->i_char_width; /* skip \n */;
/* Read data (+1 for easy \0 append) */
p_line = realloc( p_line, i_line + STREAM_PROBE_LINE + s->i_char_width );
if( !p_line )
- {
- msg_Err( s, "Out of memory when reallocating p_line" );
goto error;
- }
i_data = stream_Read( s, &p_line[i_line], STREAM_PROBE_LINE );
if( i_data <= 0 ) break; /* Hmmm */
i_line += i_data;
/* iconv */
psz_new_line = malloc( i_line );
if( psz_new_line == NULL )
- {
- msg_Err( s, "Out of memory when allocating psz_new_line" );
goto error;
- }
i_in = i_out = (size_t)i_line;
p_in = p_line;
p_out = psz_new_line;
/****************************************************************************
* Access reading/seeking wrappers to handle concatenated streams.
****************************************************************************/
-static int AReadStream( stream_t *s, void *p_read, int i_read )
+static int AReadStream( stream_t *s, void *p_read, unsigned int i_read )
{
stream_sys_t *p_sys = s->p_sys;
access_t *p_access = p_sys->p_access;
if( !p_sys->i_list )
{
i_read = p_access->pf_read( p_access, p_read, i_read );
+ if( p_access->b_die )
+ vlc_object_kill( s );
if( p_input )
{
vlc_mutex_lock( &p_input->p->counters.counters_lock );
i_read = p_sys->p_list_access->pf_read( p_sys->p_list_access, p_read,
i_read );
+ if( p_access->b_die )
+ vlc_object_kill( s );
/* If we reached an EOF then switch to the next stream in the list */
if( i_read == 0 && p_sys->i_list_index + 1 < p_sys->i_list )
if( !p_sys->i_list )
{
p_block = p_access->pf_block( p_access );
+ if( p_access->b_die )
+ vlc_object_kill( s );
if( pb_eof ) *pb_eof = p_access->info.b_eof;
- if( p_input && p_block && p_access->p_libvlc->b_stats )
+ if( p_input && p_block && libvlc_stats (p_access) )
{
vlc_mutex_lock( &p_input->p->counters.counters_lock );
stats_UpdateInteger( s, p_input->p->counters.p_read_bytes,
return p_block;
}
- p_block = p_sys->p_list_access->pf_block( p_access );
+ p_block = p_sys->p_list_access->pf_block( p_sys->p_list_access );
+ if( p_access->b_die )
+ vlc_object_kill( s );
b_eof = p_sys->p_list_access->info.b_eof;
if( pb_eof ) *pb_eof = b_eof;
va_list args;
int i_result;
- if ( s == NULL )
+ if( s == NULL )
return VLC_EGENERIC;
va_start( args, i_query );
block_t *p_bk = block_New( s, i_size );
if( p_bk )
{
- p_bk->i_buffer = stream_Read( s, p_bk->p_buffer, i_size );
- if( p_bk->i_buffer > 0 )
+ int i_read = stream_Read( s, p_bk->p_buffer, i_size );
+ if( i_read > 0 )
{
+ p_bk->i_buffer = i_read;
return p_bk;
}
+ block_Release( p_bk );
}
- if( p_bk ) block_Release( p_bk );
return NULL;
}
projects / vlc / blobdiff