X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Finput%2Fstream.c;h=019e5c00dd37e238895bd846897dffcd7c1704f8;hb=e16a922a514fa4d5adcb2bbd4b17ef6b1791035e;hp=7347d5adaef964079ec1627510fe49691b1e2516;hpb=9c36906f44fa152559400a8ee130ae3579a37f36;p=vlc diff --git a/src/input/stream.c b/src/input/stream.c index 7347d5adae..019e5c00dd 100644 --- a/src/input/stream.c +++ b/src/input/stream.c @@ -1,7 +1,7 @@ /***************************************************************************** * stream.c ***************************************************************************** - * Copyright (C) 1999-2004 VideoLAN + * Copyright (C) 1999-2004 the VideoLAN team * $Id$ * * Authors: Laurent Aimar @@ -18,20 +18,27 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ -#include -#include -#include +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include + +#include #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: @@ -39,18 +46,27 @@ * 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 track we have, currently only used for stream mode */ -#define STREAM_CACHE_TRACK 3 -/* Max size of our cache 4Mo per track */ -#define STREAM_CACHE_SIZE (4*STREAM_CACHE_TRACK*1024*1024) - /* How many data we try to prebuffer */ +/* How many tracks we have, currently only used for stream mode */ +#ifdef OPTIMIZE_MEMORY +# define STREAM_CACHE_TRACK 1 + /* Max size of our cache 128Ko per track */ +# define STREAM_CACHE_SIZE (STREAM_CACHE_TRACK*1024*128) +#else +# define STREAM_CACHE_TRACK 3 + /* Max size of our cache 4Mo per track */ +# define STREAM_CACHE_SIZE (4*STREAM_CACHE_TRACK*1024*1024) +#endif + +/* How many data we try to prebuffer */ #define STREAM_CACHE_PREBUFFER_SIZE (32767) /* Maximum time we take to pre-buffer */ #define STREAM_CACHE_PREBUFFER_LENGTH (100*1000) - /* Method1: Simple, for pf_block. * We get blocks and put them in the linked list. * We release blocks once the total size is bigger than CACHE_BLOCK_SIZE @@ -81,13 +97,28 @@ typedef struct int64_t i_end; uint8_t *p_buffer; + } stream_track_t; +typedef struct +{ + char *psz_path; + int64_t i_size; + +} access_entry_t; + +typedef enum stream_read_method_t +{ + Immediate, + Block, + Stream +} stream_read_method_t; + struct stream_sys_t { access_t *p_access; - vlc_bool_t b_block; /* Block method (1) or stream */ + stream_read_method_t method; /* method to use */ int64_t i_pos; /* Current reading offset */ @@ -101,6 +132,7 @@ struct stream_sys_t int i_size; /* Total amount of data in the list */ block_t *p_first; block_t **pp_last; + } block; /* Method 2: for pf_read */ @@ -116,8 +148,16 @@ struct stream_sys_t /* */ int i_used; /* Used since last read */ int i_read_size; + } stream; + /* Method 3: for pf_read */ + struct + { + int64_t i_end; + uint8_t *p_buffer; + } immediate; + /* Peek temporary buffer */ int i_peek; uint8_t *p_peek; @@ -125,7 +165,7 @@ struct stream_sys_t /* Stat for both method */ struct { - vlc_bool_t b_fastseek; /* From access */ + bool b_fastseek; /* From access */ /* Stat about reading data */ int64_t i_read_count; @@ -135,65 +175,225 @@ struct stream_sys_t /* Stat about seek */ int i_seek_count; int64_t i_seek_time; + } stat; + + /* Streams list */ + int i_list; + access_entry_t **list; + int i_list_index; + access_t *p_list_access; + + /* Preparse mode ? */ + bool b_quick; }; /* Method 1: */ -static int AStreamReadBlock( stream_t *, void *p_read, int i_read ); -static int AStreamPeekBlock( stream_t *, uint8_t **p_peek, int i_read ); +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 AStreamSeekBlock( stream_t *s, int64_t i_pos ); -static void AStreamPrebufferBlock( stream_t * ); +static void AStreamPrebufferBlock( stream_t *s ); +static block_t *AReadBlock( stream_t *s, bool *pb_eof ); /* Method 2 */ -static int AStreamReadStream( stream_t *, void *p_read, int i_read ); -static int AStreamPeekStream( stream_t *, uint8_t **pp_peek, int i_read ); +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 AStreamSeekStream( stream_t *s, int64_t i_pos ); -static void AStreamPrebufferStream( stream_t * ); +static void AStreamPrebufferStream( stream_t *s ); +static int AReadStream( stream_t *s, void *p_read, int i_read ); + +/* Method 3 */ +static int AStreamReadImmediate( stream_t *s, void *p_read, int i_read ); +static int AStreamPeekImmediate( stream_t *s, const uint8_t **pp_peek, int i_read ); +static int AStreamSeekImmediate( stream_t *s, int64_t i_pos ); /* Common */ -static int AStreamControl( stream_t *, int i_query, va_list ); +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 ); + +/**************************************************************************** + * 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_AccessNew: create a stream from a access + * stream_UrlNew: create a stream from a access ****************************************************************************/ -stream_t *stream_AccessNew( access_t *p_access ) +stream_t *__stream_UrlNew( vlc_object_t *p_parent, const char *psz_url ) { - stream_t *s = vlc_object_create( p_access, VLC_OBJECT_STREAM ); - stream_sys_t *p_sys; + const char *psz_access, *psz_demux; + char *psz_path; + access_t *p_access; + stream_t *p_res; + + if( !psz_url ) return 0; + + char psz_dup[strlen (psz_url) + 1]; + strcpy (psz_dup, psz_url);; + MRLSplit( psz_dup, &psz_access, &psz_demux, &psz_path ); - if( !s ) + /* Now try a real access */ + p_access = access_New( p_parent, psz_access, psz_demux, psz_path ); + + if( p_access == NULL ) + { + msg_Err( p_parent, "no suitable access module for `%s'", psz_url ); return NULL; + } + + if( !( p_res = stream_AccessNew( p_access, true ) ) ) + { + access_Delete( p_access ); + return NULL; + } + + p_res->pf_destroy = UStreamDestroy; + return p_res; +} + +stream_t *stream_AccessNew( access_t *p_access, bool b_quick ) +{ + stream_t *s = vlc_stream_create( VLC_OBJECT(p_access) ); + stream_sys_t *p_sys; + char *psz_list = NULL; + + if( !s ) return NULL; /* Attach it now, needed for b_die */ vlc_object_attach( s, p_access ); - s->pf_block = NULL; s->pf_read = NULL; /* Set up later */ s->pf_peek = NULL; - s->pf_control= AStreamControl; + s->pf_control = AStreamControl; + s->pf_destroy = AStreamDestroy; s->p_sys = p_sys = malloc( sizeof( stream_sys_t ) ); + if( p_sys == NULL ) + goto error; + + /* UTF16 and UTF32 text file conversion */ + s->i_char_width = 1; + s->b_little_endian = false; + s->conv = (vlc_iconv_t)(-1); /* Common field */ p_sys->p_access = p_access; - p_sys->b_block = p_access->pf_block ? VLC_TRUE : VLC_FALSE; + if( p_access->pf_block ) + p_sys->method = Block; + else if (var_CreateGetBool( s, "use-stream-immediate")) + p_sys->method = Immediate; + else + p_sys->method = Stream; + p_sys->i_pos = p_access->info.i_pos; /* Stats */ - access2_Control( p_access, ACCESS_CAN_FASTSEEK, &p_sys->stat.b_fastseek ); + access_Control( p_access, ACCESS_CAN_FASTSEEK, &p_sys->stat.b_fastseek ); p_sys->stat.i_bytes = 0; p_sys->stat.i_read_time = 0; p_sys->stat.i_read_count = 0; p_sys->stat.i_seek_count = 0; p_sys->stat.i_seek_time = 0; + p_sys->i_list = 0; + p_sys->list = 0; + p_sys->i_list_index = 0; + p_sys->p_list_access = 0; + + p_sys->b_quick = b_quick; + + /* Get the additional list of inputs if any (for concatenation) */ + if( (psz_list = var_CreateGetString( s, "input-list" )) && *psz_list ) + { + access_entry_t *p_entry = malloc( sizeof(access_entry_t) ); + if( p_entry == NULL ) + goto error; + char *psz_name, *psz_parser = psz_name = psz_list; + + p_sys->p_list_access = p_access; + p_entry->i_size = p_access->info.i_size; + p_entry->psz_path = strdup( p_access->psz_path ); + if( p_entry->psz_path == NULL ) + { + free( p_entry ); + goto error; + } + TAB_APPEND( p_sys->i_list, p_sys->list, p_entry ); + msg_Dbg( p_access, "adding file `%s', (%"PRId64" bytes)", + p_entry->psz_path, p_access->info.i_size ); + + while( psz_name && *psz_name ) + { + psz_parser = strchr( psz_name, ',' ); + if( psz_parser ) *psz_parser = 0; + + psz_name = strdup( psz_name ); + if( psz_name ) + { + access_t *p_tmp = access_New( p_access, p_access->psz_access, + "", psz_name ); + + if( !p_tmp ) + { + psz_name = psz_parser; + if( psz_name ) psz_name++; + continue; + } + + msg_Dbg( p_access, "adding file `%s', (%"PRId64" bytes)", + psz_name, p_tmp->info.i_size ); + + p_entry = malloc( sizeof(access_entry_t) ); + if( p_entry == NULL ) + 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 ); + + access_Delete( p_tmp ); + } + + psz_name = psz_parser; + if( psz_name ) psz_name++; + } + } + FREENULL( psz_list ); + /* Peek */ p_sys->i_peek = 0; p_sys->p_peek = NULL; - if( p_sys->b_block ) + if( p_sys->method == Block ) { + msg_Dbg( s, "Using AStream*Block" ); s->pf_read = AStreamReadBlock; s->pf_peek = AStreamPeekBlock; @@ -214,10 +414,33 @@ stream_t *stream_AccessNew( access_t *p_access ) goto error; } } - else + else if (p_sys->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 /* ( p_sys->method == Stream ) */ { int i; + msg_Dbg( s, "Using AStream*Stream" ); + s->pf_read = AStreamReadStream; s->pf_peek = AStreamPeekStream; @@ -225,8 +448,14 @@ stream_t *stream_AccessNew( access_t *p_access ) p_sys->stream.i_offset = 0; p_sys->stream.i_tk = 0; p_sys->stream.p_buffer = malloc( STREAM_CACHE_SIZE ); + if( p_sys->stream.p_buffer == NULL ) + { + msg_Err( s, "Out of memory when allocating stream cache (%d bytes)", + STREAM_CACHE_SIZE ); + goto error; + } p_sys->stream.i_used = 0; - access2_Control( p_access, ACCESS_GET_MTU, + access_Control( p_access, ACCESS_GET_MTU, &p_sys->stream.i_read_size ); if( p_sys->stream.i_read_size <= 0 ) p_sys->stream.i_read_size = STREAM_READ_ATONCE; @@ -255,7 +484,7 @@ stream_t *stream_AccessNew( access_t *p_access ) return s; error: - if( p_sys->b_block ) + if( p_sys->method == Block ) { /* Nothing yet */ } @@ -263,35 +492,51 @@ error: { free( p_sys->stream.p_buffer ); } + while( p_sys->i_list > 0 ) + free( p_sys->list[--(p_sys->i_list)] ); + free( p_sys->list ); + free( psz_list ); free( s->p_sys ); vlc_object_detach( s ); - vlc_object_destroy( s ); + vlc_object_release( s ); return NULL; } /**************************************************************************** - * stream_AccessDelete: + * AStreamDestroy: ****************************************************************************/ -void stream_AccessDelete( stream_t *s ) +static void AStreamDestroy( stream_t *s ) { stream_sys_t *p_sys = s->p_sys; vlc_object_detach( s ); - if( p_sys->b_block ) - { - block_ChainRelease( p_sys->block.p_first ); - } - else + if( p_sys->method == Block ) block_ChainRelease( p_sys->block.p_first ); + else if ( p_sys->method == Immediate ) free( p_sys->immediate.p_buffer ); + else free( p_sys->stream.p_buffer ); + + free( p_sys->p_peek ); + + if( p_sys->p_list_access && p_sys->p_list_access != p_sys->p_access ) + access_Delete( p_sys->p_list_access ); + + while( p_sys->i_list-- ) { - free( p_sys->stream.p_buffer ); + free( p_sys->list[p_sys->i_list]->psz_path ); + free( p_sys->list[p_sys->i_list] ); } - if( p_sys->p_peek ) - free( p_sys->p_peek ); + free( p_sys->list ); + free( p_sys ); - free( s->p_sys ); - vlc_object_destroy( s ); + vlc_object_release( s ); +} + +static void UStreamDestroy( stream_t *s ) +{ + access_t *p_access = (access_t *)s->p_parent; + AStreamDestroy( s ); + access_Delete( p_access ); } /**************************************************************************** @@ -303,7 +548,7 @@ void stream_AccessReset( stream_t *s ) p_sys->i_pos = p_sys->p_access->info.i_pos; - if( p_sys->b_block ) + if( p_sys->method == Block ) { block_ChainRelease( p_sys->block.p_first ); @@ -318,7 +563,11 @@ void stream_AccessReset( stream_t *s ) /* Do the prebuffering */ AStreamPrebufferBlock( s ); } - else + else if( p_sys->method == Immediate ) + { + stream_buffer_empty( s, stream_buffered_size( s ) ); + } + else /* ( p_sys->method == Stream ) */ { int i; @@ -345,7 +594,17 @@ void stream_AccessReset( stream_t *s ) void stream_AccessUpdate( stream_t *s ) { stream_sys_t *p_sys = s->p_sys; + p_sys->i_pos = p_sys->p_access->info.i_pos; + + if( p_sys->i_list ) + { + int i; + for( i = 0; i < p_sys->i_list_index; i++ ) + { + p_sys->i_pos += p_sys->list[i]->i_size; + } + } } /**************************************************************************** @@ -356,7 +615,7 @@ 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; - vlc_bool_t *p_bool; + bool *p_bool; int64_t *pi_64, i_64; int i_int; @@ -364,17 +623,25 @@ static int AStreamControl( stream_t *s, int i_query, va_list args ) { case STREAM_GET_SIZE: pi_64 = (int64_t*)va_arg( args, int64_t * ); + if( s->p_sys->i_list ) + { + int i; + *pi_64 = 0; + for( i = 0; i < s->p_sys->i_list; i++ ) + *pi_64 += s->p_sys->list[i]->i_size; + break; + } *pi_64 = p_access->info.i_size; break; case STREAM_CAN_SEEK: - p_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * ); - access2_Control( p_access, ACCESS_CAN_SEEK, p_bool ); + p_bool = (bool*)va_arg( args, bool * ); + access_Control( p_access, ACCESS_CAN_SEEK, p_bool ); break; case STREAM_CAN_FASTSEEK: - p_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * ); - access2_Control( p_access, ACCESS_CAN_FASTSEEK, p_bool ); + p_bool = (bool*)va_arg( args, bool * ); + access_Control( p_access, ACCESS_CAN_FASTSEEK, p_bool ); break; case STREAM_GET_POSITION: @@ -384,9 +651,11 @@ static int AStreamControl( stream_t *s, int i_query, va_list args ) case STREAM_SET_POSITION: i_64 = (int64_t)va_arg( args, int64_t ); - if( p_sys->b_block ) + if( p_sys->method == Block ) return AStreamSeekBlock( s, i_64 ); - else + else if( p_sys->method == Immediate ) + return AStreamSeekImmediate( s, i_64 ); + else /* ( p_sys->method == Stream ) */ return AStreamSeekStream( s, i_64 ); case STREAM_GET_MTU: @@ -394,14 +663,19 @@ static int AStreamControl( stream_t *s, int i_query, va_list args ) case STREAM_CONTROL_ACCESS: i_int = (int) va_arg( args, int ); - if( i_int != ACCESS_SET_PRIVATE_ID_STATE - && i_int != ACCESS_SET_PRIVATE_ID_CA ) + if( i_int != ACCESS_SET_PRIVATE_ID_STATE && + i_int != ACCESS_SET_PRIVATE_ID_CA && + i_int != ACCESS_GET_PRIVATE_ID_STATE ) { msg_Err( s, "Hey, what are you thinking ?" "DON'T USE STREAM_CONTROL_ACCESS !!!" ); return VLC_EGENERIC; } - return access2_vaControl( p_access, i_int, args ); + return access_vaControl( p_access, i_int, args ); + + case STREAM_GET_CONTENT_TYPE: + return access_Control( p_access, ACCESS_GET_CONTENT_TYPE, + va_arg( args, char ** ) ); default: msg_Err( s, "invalid stream_vaControl query=0x%x", i_query ); @@ -428,6 +702,7 @@ static void AStreamPrebufferBlock( stream_t *s ) for( ;; ) { int64_t i_date = mdate(); + bool b_eof; block_t *b; if( s->b_die || p_sys->block.i_size > STREAM_CACHE_PREBUFFER_SIZE || @@ -438,39 +713,51 @@ static void AStreamPrebufferBlock( stream_t *s ) /* Update stat */ p_sys->stat.i_bytes = p_sys->block.i_size; p_sys->stat.i_read_time = i_date - i_start; - i_byterate = ( I64C(1000000) * p_sys->stat.i_bytes ) / + i_byterate = ( INT64_C(1000000) * p_sys->stat.i_bytes ) / (p_sys->stat.i_read_time + 1); - msg_Dbg( s, "prebuffering done "I64Fd" bytes in "I64Fd"s - " - I64Fd" kbytes/s", + msg_Dbg( s, "prebuffering done %"PRId64" bytes in %"PRId64"s - " + "%"PRId64" kbytes/s", p_sys->stat.i_bytes, - p_sys->stat.i_read_time / I64C(1000000), + p_sys->stat.i_read_time / INT64_C(1000000), i_byterate / 1024 ); break; } /* Fetch a block */ - if( ( b = p_access->pf_block( p_access ) ) == NULL ) + if( ( b = AReadBlock( s, &b_eof ) ) == NULL ) { - if( p_access->info.b_eof ) - break; + if( b_eof ) break; msleep( STREAM_DATA_WAIT ); continue; } + while( b ) + { + /* Append the block */ + p_sys->block.i_size += b->i_buffer; + *p_sys->block.pp_last = b; + p_sys->block.pp_last = &b->p_next; + + p_sys->stat.i_read_count++; + b = b->p_next; + } + + if( p_access->info.b_prebuffered ) + { + /* Access has already prebufferred - update stats and exit */ + p_sys->stat.i_bytes = p_sys->block.i_size; + p_sys->stat.i_read_time = mdate() - i_start; + break; + } + if( i_first == 0 ) { i_first = mdate(); msg_Dbg( s, "received first data for our buffer"); } - /* Append the block */ - p_sys->block.i_size += b->i_buffer; - *p_sys->block.pp_last = b; - p_sys->block.pp_last = &b->p_next; - - p_sys->stat.i_read_count++; } p_sys->block.p_current = p_sys->block.p_first; @@ -491,11 +778,11 @@ static int AStreamReadBlock( stream_t *s, void *p_read, int i_read ) if( p_read == NULL ) { - /* seek within this stream if possible, else use plain old read and discard */ + /* 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; - vlc_bool_t b_aseek; - access2_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); + bool b_aseek; + access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); if( b_aseek ) return AStreamSeekBlock( s, p_sys->i_pos + i_read ) ? 0 : i_read; } @@ -525,8 +812,8 @@ static int AStreamReadBlock( stream_t *s, void *p_read, int i_read ) p_sys->block.i_offset = 0; p_sys->block.p_current = p_sys->block.p_current->p_next; } - /*Get a new block */ - if( AStreamRefillBlock( s ) ) + /*Get a new block if needed */ + if( !p_sys->block.p_current && AStreamRefillBlock( s ) ) { break; } @@ -537,7 +824,7 @@ static int AStreamReadBlock( stream_t *s, void *p_read, int i_read ) return i_data; } -static int AStreamPeekBlock( stream_t *s, uint8_t **pp_peek, int i_read ) +static int AStreamPeekBlock( stream_t *s, const uint8_t **pp_peek, int i_read ) { stream_sys_t *p_sys = s->p_sys; uint8_t *p_data; @@ -557,10 +844,13 @@ static int AStreamPeekBlock( stream_t *s, uint8_t **pp_peek, int i_read ) /* We need to create a local copy */ if( p_sys->i_peek < i_read ) { - if( p_sys->p_peek ) - free( p_sys->p_peek ); + p_sys->p_peek = realloc( p_sys->p_peek, i_read ); + if( !p_sys->p_peek ) + { + p_sys->i_peek = 0; + return 0; + } p_sys->i_peek = i_read; - p_sys->p_peek = malloc( p_sys->i_peek ); } /* Fill enough data */ @@ -569,12 +859,10 @@ static int AStreamPeekBlock( stream_t *s, uint8_t **pp_peek, int i_read ) { block_t **pp_last = p_sys->block.pp_last; - if( AStreamRefillBlock( s ) ) - break; + if( AStreamRefillBlock( s ) ) break; /* Our buffer are probably filled enough, don't try anymore */ - if( pp_last == p_sys->block.pp_last ) - break; + if( pp_last == p_sys->block.pp_last ) break; } /* Copy what we have */ @@ -608,7 +896,7 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) stream_sys_t *p_sys = s->p_sys; access_t *p_access = p_sys->p_access; int64_t i_offset = i_pos - p_sys->block.i_start; - vlc_bool_t b_seek; + 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 ) @@ -633,28 +921,28 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) /* We may need to seek or to read data */ if( i_offset < 0 ) { - vlc_bool_t b_aseek; - access2_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); + bool b_aseek; + access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); if( !b_aseek ) { - msg_Err( s, "backward seek impossible (access non seekable)" ); + msg_Err( s, "backward seeking impossible (access not seekable)" ); return VLC_EGENERIC; } - b_seek = VLC_TRUE; + b_seek = true; } else { - vlc_bool_t b_aseek, b_aseekfast; + bool b_aseek, b_aseekfast; - access2_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); - access2_Control( p_access, ACCESS_CAN_FASTSEEK, &b_aseekfast ); + access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); + access_Control( p_access, ACCESS_CAN_FASTSEEK, &b_aseekfast ); if( !b_aseek ) { - b_seek = VLC_FALSE; - msg_Warn( s, I64Fd" bytes need to be skipped " + b_seek = false; + msg_Warn( s, "%"PRId64" bytes need to be skipped " "(access non seekable)", i_offset - p_sys->block.i_size ); } @@ -669,11 +957,11 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) if( i_skip <= i_th * i_avg && i_skip < STREAM_CACHE_SIZE ) - b_seek = VLC_FALSE; + b_seek = false; else - b_seek = VLC_TRUE; + b_seek = true; - msg_Dbg( s, "b_seek=%d th*avg=%d skip="I64Fd, + msg_Dbg( s, "b_seek=%d th*avg=%d skip=%"PRId64, b_seek, i_th*i_avg, i_skip ); } } @@ -683,8 +971,7 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) int64_t i_start, i_end; /* Do the access seek */ i_start = mdate(); - if( p_access->pf_seek( p_access, i_pos ) ) - return VLC_EGENERIC; + if( ASeek( s, i_pos ) ) return VLC_EGENERIC; i_end = mdate(); /* Release data */ @@ -700,10 +987,8 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) /* Refill a block */ if( AStreamRefillBlock( s ) ) - { - msg_Err( s, "cannot re fill buffer" ); return VLC_EGENERIC; - } + /* Update stat */ p_sys->stat.i_seek_time += i_end - i_start; p_sys->stat.i_seek_count++; @@ -711,26 +996,25 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) } else { - /* Read enought data */ - while( p_sys->block.i_start + p_sys->block.i_size < i_pos ) + do { + /* Read and skip enough data */ if( AStreamRefillBlock( s ) ) - { - msg_Err( s, "can't read enough data in seek" ); 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; - /* TODO read data */ return VLC_SUCCESS; } @@ -740,7 +1024,6 @@ static int AStreamSeekBlock( stream_t *s, int64_t i_pos ) static int AStreamRefillBlock( stream_t *s ) { stream_sys_t *p_sys = s->p_sys; - access_t *p_access = p_sys->p_access; int64_t i_start, i_stop; block_t *b; @@ -768,35 +1051,40 @@ static int AStreamRefillBlock( stream_t *s ) i_start = mdate(); for( ;; ) { - if( s->b_die ) - return VLC_EGENERIC; + bool b_eof; + + if( s->b_die ) return VLC_EGENERIC; /* Fetch a block */ - if( ( b = p_access->pf_block( p_access ) ) ) - break; + if( ( b = AReadBlock( s, &b_eof ) ) ) break; - if( p_access->info.b_eof ) - return VLC_EGENERIC; + if( b_eof ) return VLC_EGENERIC; msleep( STREAM_DATA_WAIT ); } - i_stop = mdate(); - /* Append the block */ - p_sys->block.i_size += b->i_buffer; - *p_sys->block.pp_last = b; - p_sys->block.pp_last = &b->p_next; + while( b ) + { + i_stop = mdate(); - /* Fix p_current */ - if( p_sys->block.p_current == NULL ) - p_sys->block.p_current = b; + /* Append the block */ + p_sys->block.i_size += b->i_buffer; + *p_sys->block.pp_last = b; + p_sys->block.pp_last = &b->p_next; - /* Update stat */ - p_sys->stat.i_bytes += b->i_buffer; - p_sys->stat.i_read_time += i_stop - i_start; - p_sys->stat.i_read_count++; + /* Fix p_current */ + if( p_sys->block.p_current == NULL ) + p_sys->block.p_current = b; + + /* Update stat */ + p_sys->stat.i_bytes += b->i_buffer; + p_sys->stat.i_read_time += i_stop - i_start; + p_sys->stat.i_read_count++; + b = b->p_next; + i_start = mdate(); + } return VLC_SUCCESS; } @@ -818,18 +1106,23 @@ static int AStreamReadStream( stream_t *s, void *p_read, int i_read ) if( p_read == NULL ) { - /* seek within this stream if possible, else use plain old read and discard */ + /* 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; - vlc_bool_t b_aseek; - access2_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; + } } -#if 0 - msg_Dbg( s, "AStreamReadStream: %d pos="I64Fd" tk=%d start="I64Fd - " offset=%d end="I64Fd, +#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 @@ -874,7 +1167,7 @@ static int AStreamReadStream( stream_t *s, void *p_read, int i_read ) return i_data; } -static int AStreamPeekStream( stream_t *s, uint8_t **pp_peek, int i_read ) +static int AStreamPeekStream( stream_t *s, const uint8_t **pp_peek, int i_read ) { stream_sys_t *p_sys = s->p_sys; stream_track_t *tk = &p_sys->stream.tk[p_sys->stream.i_tk]; @@ -882,9 +1175,9 @@ static int AStreamPeekStream( stream_t *s, uint8_t **pp_peek, int i_read ) if( tk->i_start >= tk->i_end ) return 0; /* EOF */ -#if 0 - msg_Dbg( s, "AStreamPeekStream: %d pos="I64Fd" tk=%d " - "start="I64Fd" offset=%d end="I64Fd, +#ifdef STREAM_DEBUG + msg_Dbg( s, "AStreamPeekStream: %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 @@ -898,10 +1191,10 @@ static int AStreamPeekStream( stream_t *s, uint8_t **pp_peek, int 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 += i_read - + (tk->i_end - tk->i_start - p_sys->stream.i_offset); } - if( AStreamRefillStream( s ) ) - break; + if( AStreamRefillStream( s ) ) break; } if( tk->i_end - tk->i_start - p_sys->stream.i_offset < i_read ) @@ -917,9 +1210,13 @@ static int AStreamPeekStream( stream_t *s, uint8_t **pp_peek, int i_read ) if( p_sys->i_peek < i_read ) { - if( p_sys->p_peek ) free( p_sys->p_peek ); + p_sys->p_peek = realloc( p_sys->p_peek, i_read ); + if( !p_sys->p_peek ) + { + p_sys->i_peek = 0; + return 0; + } p_sys->i_peek = i_read; - p_sys->p_peek = malloc( i_read ); } memcpy( p_sys->p_peek, &tk->p_buffer[i_off], @@ -935,15 +1232,15 @@ static int AStreamSeekStream( stream_t *s, int64_t i_pos ) { stream_sys_t *p_sys = s->p_sys; access_t *p_access = p_sys->p_access; - vlc_bool_t b_aseek; - vlc_bool_t b_afastseek; + bool b_aseek; + bool b_afastseek; int i_maxth; int i_new; int i; -#if 0 - msg_Dbg( s, "AStreamSeekStream: to "I64Fd" pos="I64Fd - "tk=%d start="I64Fd" offset=%d end="I64Fd, +#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_sys->stream.i_offset, @@ -955,13 +1252,31 @@ static int AStreamSeekStream( stream_t *s, int64_t i_pos ) 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 ) { - //msg_Dbg( s, "AStreamSeekStream: current track" ); + 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 - p_sys->stream.tk[p_sys->stream.i_tk].i_start; + 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; } - access2_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); + access_Control( p_access, ACCESS_CAN_SEEK, &b_aseek ); if( !b_aseek ) { /* We can't do nothing */ @@ -979,13 +1294,13 @@ static int AStreamSeekStream( stream_t *s, int64_t i_pos ) if( i_pos >= tk->i_start && i_pos <= tk->i_end ) { -#if 0 - msg_Dbg( s, "AStreamSeekStream: reusing %d start="I64Fd - " end="I64Fd, i, tk->i_start, tk->i_end ); +#ifdef STREAM_DEBUG + msg_Dbg( s, "AStreamSeekStream: reusing %d start=%"PRId64 + " end=%"PRId64, i, tk->i_start, tk->i_end ); #endif + /* Seek at the end of the buffer */ - if( p_access->pf_seek( p_access, tk->i_end ) ) - return VLC_EGENERIC; + if( ASeek( s, tk->i_end ) ) return VLC_EGENERIC; /* That's it */ p_sys->i_pos = i_pos; @@ -995,14 +1310,14 @@ static int AStreamSeekStream( stream_t *s, int64_t i_pos ) if( p_sys->stream.i_used < 1024 ) p_sys->stream.i_used = 1024; - if( AStreamRefillStream( s ) ) + if( AStreamRefillStream( s ) && i_pos == tk->i_end ) return VLC_EGENERIC; return VLC_SUCCESS; } } - access2_Control( p_access, ACCESS_CAN_SEEK, &b_afastseek ); + 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 ) @@ -1027,8 +1342,7 @@ static int AStreamSeekStream( stream_t *s, int64_t i_pos ) #endif /* Nothing good, seek and choose oldest segment */ - if( p_access->pf_seek( p_access, i_pos ) ) - return VLC_EGENERIC; + if( ASeek( s, i_pos ) ) return VLC_EGENERIC; p_sys->i_pos = i_pos; i_new = 0; @@ -1057,19 +1371,21 @@ static int AStreamSeekStream( stream_t *s, int64_t i_pos ) static int AStreamRefillStream( stream_t *s ) { stream_sys_t *p_sys = s->p_sys; - access_t *p_access = p_sys->p_access; stream_track_t *tk = &p_sys->stream.tk[p_sys->stream.i_tk]; /* We read but won't increase i_start after initial start + offset */ int i_toread = __MIN( p_sys->stream.i_used, STREAM_CACHE_TRACK_SIZE - (tk->i_end - tk->i_start - p_sys->stream.i_offset) ); - vlc_bool_t b_read = VLC_FALSE; + bool b_read = false; int64_t i_start, i_stop; if( i_toread <= 0 ) return VLC_EGENERIC; /* EOF */ - /* msg_Dbg( s, "AStreamRefillStream: toread=%d", i_toread ); */ +#ifdef STREAM_DEBUG + msg_Dbg( s, "AStreamRefillStream: used=%d toread=%d", + p_sys->stream.i_used, i_toread ); +#endif i_start = mdate(); while( i_toread > 0 ) @@ -1081,7 +1397,7 @@ static int AStreamRefillStream( stream_t *s ) return VLC_EGENERIC; i_read = __MIN( i_toread, STREAM_CACHE_TRACK_SIZE - i_off ); - i_read = p_access->pf_read( p_access, &tk->p_buffer[i_off], i_read ); + i_read = AReadStream( s, &tk->p_buffer[i_off], i_read ); /* msg_Dbg( s, "AStreamRefillStream: read=%d", i_read ); */ if( i_read < 0 ) @@ -1091,11 +1407,10 @@ static int AStreamRefillStream( stream_t *s ) } else if( i_read == 0 ) { - if( !b_read ) - return VLC_EGENERIC; + if( !b_read ) return VLC_EGENERIC; return VLC_SUCCESS; } - b_read = VLC_TRUE; + b_read = true; /* Update end */ tk->i_end += i_read; @@ -1129,10 +1444,11 @@ static void AStreamPrebufferStream( stream_t *s ) int64_t i_first = 0; int64_t i_start; - int64_t i_prebuffer = (s->p_sys->p_access->info.i_title > 1 || - s->p_sys->p_access->info.i_seekpoint > 1) ? STREAM_CACHE_PREBUFFER_SIZE : STREAM_CACHE_TRACK_SIZE / 3; + int64_t i_prebuffer = p_sys->b_quick ? STREAM_CACHE_TRACK_SIZE /100 : + ( (p_access->info.i_title > 1 || p_access->info.i_seekpoint > 1) ? + STREAM_CACHE_PREBUFFER_SIZE : STREAM_CACHE_TRACK_SIZE / 3 ); - msg_Dbg( s, "pre buffering" ); + msg_Dbg( s, "pre-buffering..." ); i_start = mdate(); for( ;; ) { @@ -1149,22 +1465,21 @@ static void AStreamPrebufferStream( stream_t *s ) /* Update stat */ p_sys->stat.i_bytes = tk->i_end - tk->i_start; p_sys->stat.i_read_time = i_date - i_start; - i_byterate = ( I64C(1000000) * p_sys->stat.i_bytes ) / + i_byterate = ( INT64_C(1000000) * p_sys->stat.i_bytes ) / (p_sys->stat.i_read_time+1); - msg_Dbg( s, "prebuffering done "I64Fd" bytes in "I64Fd"s - " - I64Fd" kbytes/s", + msg_Dbg( s, "pre-buffering done %"PRId64" bytes in %"PRId64"s - " + "%"PRId64" kbytes/s", p_sys->stat.i_bytes, - p_sys->stat.i_read_time / I64C(1000000), + p_sys->stat.i_read_time / INT64_C(1000000), i_byterate / 1024 ); break; } /* */ - i_read = __MIN( p_sys->stream.i_read_size, - STREAM_CACHE_TRACK_SIZE - tk->i_end ); - i_read = p_access->pf_read( p_access, &tk->p_buffer[tk->i_end], - i_read ); + 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 ); if( i_read < 0 ) { msleep( STREAM_DATA_WAIT ); @@ -1188,6 +1503,115 @@ static void AStreamPrebufferStream( stream_t *s ) } } +/**************************************************************************** + * Method 3: + ****************************************************************************/ + +static int AStreamReadImmediate( stream_t *s, void *p_read, int i_read ) +{ + stream_sys_t *p_sys = s->p_sys; + +#ifdef STREAM_DEBUG + msg_Dbg( s, "AStreamReadImmediate p_read=%p i_read=%d", + p_read, i_read ); +#endif + + /* First, check if we already have some data in the buffer, + * that we could copy directly */ + int i_copy = __MIN( stream_buffered_size( s ), i_read ); + if( i_copy ) + { +#ifdef STREAM_DEBUG + msg_Dbg( s, "AStreamReadImmediate: copy %d from %p", i_copy, stream_buffer( s ) ); +#endif + + assert( i_copy <= STREAM_CACHE_SIZE ); + + if( p_read ) + { + memcpy( p_read, stream_buffer( s ), i_copy ); + p_read = (uint8_t *)p_read + i_copy; + } + } + + /* Now that we've read our buffer we don't need its i_copy bytes */ + stream_buffer_empty( s, i_copy ); + + /* Now check if we have still to really read some data */ + int i_to_read = i_read - i_copy; + if( i_to_read ) + { + if( p_read ) + i_to_read = AReadStream( s, p_read, i_to_read ); + else + { + void * dummy = malloc(i_to_read); + i_to_read = AReadStream( s, dummy, i_to_read ); + free(dummy); + } + } + + p_sys->i_pos += i_to_read; + + return i_to_read + i_copy; +} + +static int AStreamPeekImmediate( stream_t *s, const uint8_t **pp_peek, 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 */ + 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: @@ -1195,11 +1619,11 @@ static void AStreamPrebufferStream( stream_t *s ) /** * Read from the stream untill first newline. * \param s Stream handle to read from - * \return A null-terminated string. This must be freed, + * \return A pointer to the allocated output string. You need to free this when you are done. */ #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; @@ -1207,21 +1631,164 @@ char *stream_ReadLine( stream_t *s ) while( i_read < STREAM_LINE_MAX ) { char *psz_eol; - uint8_t *p_data; + const uint8_t *p_data; int i_data; + int64_t i_pos; /* Probe new data */ i_data = stream_Peek( s, &p_data, STREAM_PROBE_LINE ); if( i_data <= 0 ) break; /* No more data */ + /* BOM detection */ + i_pos = stream_Tell( s ); + if( i_pos == 0 && i_data > 4 ) + { + int i_bom_size = 0; + char *psz_encoding = NULL; + + if( p_data[0] == 0xEF && p_data[1] == 0xBB && p_data[2] == 0xBF ) + { + psz_encoding = strdup( "UTF-8" ); + i_bom_size = 3; + } + else if( p_data[0] == 0x00 && p_data[1] == 0x00 ) + { + 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; + } + } + else if( p_data[0] == 0xFE && p_data[1] == 0xFF ) + { + psz_encoding = strdup( "UTF-16BE" ); + s->i_char_width = 2; + i_bom_size = 2; + } + + /* Seek past the BOM */ + if( i_bom_size ) + { + stream_Seek( s, i_bom_size ); + p_data += i_bom_size; + i_data -= i_bom_size; + } + + /* Open the converter if we need it */ + if( psz_encoding != NULL ) + { + input_thread_t *p_input; + msg_Dbg( s, "%s BOM detected", psz_encoding ); + p_input = (input_thread_t *)vlc_object_find( s, VLC_OBJECT_INPUT, FIND_PARENT ); + if( s->i_char_width > 1 ) + { + s->conv = vlc_iconv_open( "UTF-8", psz_encoding ); + if( s->conv == (vlc_iconv_t)-1 ) + { + msg_Err( s, "iconv_open failed" ); + } + } + 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 ); + } + free( psz_encoding ); + } + } + + if( i_data % s->i_char_width ) + { + /* keep i_char_width boundary */ + i_data = i_data - ( i_data % s->i_char_width ); + msg_Warn( s, "the read is not i_char_width compatible"); + } + + if( i_data == 0 ) + break; + /* Check if there is an EOL */ - if( ( psz_eol = memchr( p_data, '\n', i_data ) ) ) + if( s->i_char_width == 1 ) + { + /* UTF-8: 0A */ + psz_eol = memchr( p_data, '\n', i_data ); + } + else + { + const uint8_t *p = p_data; + const uint8_t *p_last = p + i_data - s->i_char_width; + + if( s->i_char_width == 2 ) + { + if( s->b_little_endian == true) + { + /* UTF-16LE: 0A 00 */ + while( p <= p_last && ( p[0] != 0x0A || p[1] != 0x00 ) ) + p += 2; + } + else + { + /* UTF-16BE: 00 0A */ + while( p <= p_last && ( p[1] != 0x0A || p[0] != 0x00 ) ) + p += 2; + } + } + else if( s->i_char_width == 4 ) + { + if( s->b_little_endian == true) + { + /* UTF-32LE: 0A 00 00 00 */ + 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 */ + while( p <= p_last && ( p[3] != 0x0A || p[2] != 0x00 || + p[1] != 0x00 || p[0] != 0x00 ) ) + p += 4; + } + } + + if( p > p_last ) + { + psz_eol = NULL; + } + else + { + psz_eol = (char *)p + ( s->i_char_width - 1 ); + } + } + + if(psz_eol) { i_data = (psz_eol - (char *)p_data) + 1; - p_line = realloc( p_line, i_line + i_data + 1 ); + p_line = realloc( p_line, i_line + i_data + s->i_char_width ); /* add \0 */ + if( !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 - 1); + i_line += i_data - s->i_char_width; /* skip \n */; i_read += i_data; /* We have our line */ @@ -1229,24 +1796,340 @@ char *stream_ReadLine( stream_t *s ) } /* Read data (+1 for easy \0 append) */ - p_line = realloc( p_line, i_line + STREAM_PROBE_LINE + 1 ); + p_line = realloc( p_line, i_line + STREAM_PROBE_LINE + s->i_char_width ); + if( !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; i_read += i_data; } - /* Remove trailing LF/CR */ - while( i_line > 0 && ( p_line[i_line-1] == '\r' || - p_line[i_line-1] == '\n') ) i_line--; - if( i_read > 0 ) { - p_line[i_line] = '\0'; + int j; + for( j = 0; j < s->i_char_width; j++ ) + { + p_line[i_line + j] = '\0'; + } + i_line += s->i_char_width; /* the added \0 */ + if( s->i_char_width > 1 ) + { + size_t i_in = 0, i_out = 0; + const char * p_in = NULL; + char * p_out = NULL; + char * psz_new_line = NULL; + + /* iconv */ + psz_new_line = malloc( i_line ); + if( psz_new_line == NULL ) + goto error; + i_in = i_out = (size_t)i_line; + p_in = p_line; + p_out = psz_new_line; + + if( vlc_iconv( s->conv, &p_in, &i_in, &p_out, &i_out ) == (size_t)-1 ) + { + msg_Err( s, "iconv failed" ); + msg_Dbg( s, "original: %d, in %d, out %d", i_line, (int)i_in, (int)i_out ); + } + free( p_line ); + p_line = psz_new_line; + i_line = (size_t)i_line - i_out; /* does not include \0 */ + } + + /* Remove trailing LF/CR */ + while( i_line >= 2 && ( p_line[i_line-2] == '\r' || + p_line[i_line-2] == '\n') ) i_line--; + + /* Make sure the \0 is there */ + p_line[i_line-1] = '\0'; + return p_line; } +error: + /* We failed to read any data, probably EOF */ - if( p_line ) free( p_line ); + free( p_line ); + if( s->conv != (vlc_iconv_t)(-1) ) vlc_iconv_close( s->conv ); + return NULL; +} + +/**************************************************************************** + * Access reading/seeking wrappers to handle concatenated streams. + ****************************************************************************/ +static int AReadStream( stream_t *s, void *p_read, int i_read ) +{ + stream_sys_t *p_sys = s->p_sys; + access_t *p_access = p_sys->p_access; + input_thread_t *p_input = NULL; + int i_read_orig = i_read; + int i_total = 0; + + if( s->p_parent && s->p_parent->p_parent && + s->p_parent->p_parent->i_object_type == VLC_OBJECT_INPUT ) + p_input = (input_thread_t *)s->p_parent->p_parent; + + 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 ); + stats_UpdateInteger( s, p_input->p->counters.p_read_bytes, i_read, + &i_total ); + stats_UpdateFloat( s, p_input->p->counters.p_input_bitrate, + (float)i_total, NULL ); + stats_UpdateInteger( s, p_input->p->counters.p_read_packets, 1, NULL ); + vlc_mutex_unlock( &p_input->p->counters.counters_lock ); + } + return i_read; + } + + 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 ) + { + char *psz_name = p_sys->list[++p_sys->i_list_index]->psz_path; + access_t *p_list_access; + + msg_Dbg( s, "opening input `%s'", psz_name ); + + p_list_access = access_New( s, p_access->psz_access, "", psz_name ); + + if( !p_list_access ) return 0; + + if( p_sys->p_list_access != p_access ) + access_Delete( p_sys->p_list_access ); + + p_sys->p_list_access = p_list_access; + + /* We have to read some data */ + return AReadStream( s, p_read, i_read_orig ); + } + + /* Update read bytes in input */ + if( p_input ) + { + vlc_mutex_lock( &p_input->p->counters.counters_lock ); + stats_UpdateInteger( s, p_input->p->counters.p_read_bytes, i_read, &i_total ); + stats_UpdateFloat( s, p_input->p->counters.p_input_bitrate, + (float)i_total, NULL ); + stats_UpdateInteger( s, p_input->p->counters.p_read_packets, 1, NULL ); + vlc_mutex_unlock( &p_input->p->counters.counters_lock ); + } + return i_read; +} + +static block_t *AReadBlock( stream_t *s, bool *pb_eof ) +{ + stream_sys_t *p_sys = s->p_sys; + access_t *p_access = p_sys->p_access; + input_thread_t *p_input = NULL; + block_t *p_block; + bool b_eof; + int i_total = 0; + + if( s->p_parent && s->p_parent->p_parent && + s->p_parent->p_parent->i_object_type == VLC_OBJECT_INPUT ) + p_input = (input_thread_t *)s->p_parent->p_parent; + + 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 && libvlc_stats (p_access) ) + { + vlc_mutex_lock( &p_input->p->counters.counters_lock ); + stats_UpdateInteger( s, p_input->p->counters.p_read_bytes, + p_block->i_buffer, &i_total ); + stats_UpdateFloat( s, p_input->p->counters.p_input_bitrate, + (float)i_total, NULL ); + stats_UpdateInteger( s, p_input->p->counters.p_read_packets, 1, NULL ); + vlc_mutex_unlock( &p_input->p->counters.counters_lock ); + } + return p_block; + } + + p_block = p_sys->p_list_access->pf_block( p_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; + + /* If we reached an EOF then switch to the next stream in the list */ + if( !p_block && b_eof && p_sys->i_list_index + 1 < p_sys->i_list ) + { + char *psz_name = p_sys->list[++p_sys->i_list_index]->psz_path; + access_t *p_list_access; + + msg_Dbg( s, "opening input `%s'", psz_name ); + + p_list_access = access_New( s, p_access->psz_access, "", psz_name ); + + if( !p_list_access ) return 0; + + if( p_sys->p_list_access != p_access ) + access_Delete( p_sys->p_list_access ); + + p_sys->p_list_access = p_list_access; + + /* We have to read some data */ + return AReadBlock( s, pb_eof ); + } + if( p_block ) + { + if( p_input ) + { + vlc_mutex_lock( &p_input->p->counters.counters_lock ); + stats_UpdateInteger( s, p_input->p->counters.p_read_bytes, + p_block->i_buffer, &i_total ); + stats_UpdateFloat( s, p_input->p->counters.p_input_bitrate, + (float)i_total, NULL ); + stats_UpdateInteger( s, p_input->p->counters.p_read_packets, + 1 , NULL); + vlc_mutex_unlock( &p_input->p->counters.counters_lock ); + } + } + return p_block; +} + +static int ASeek( stream_t *s, int64_t i_pos ) +{ + stream_sys_t *p_sys = s->p_sys; + access_t *p_access = p_sys->p_access; + + /* Check which stream we need to access */ + if( p_sys->i_list ) + { + int i; + char *psz_name; + int64_t i_size = 0; + access_t *p_list_access = 0; + + for( i = 0; i < p_sys->i_list - 1; i++ ) + { + if( i_pos < p_sys->list[i]->i_size + i_size ) break; + i_size += p_sys->list[i]->i_size; + } + psz_name = p_sys->list[i]->psz_path; + + if( i != p_sys->i_list_index ) + msg_Dbg( s, "opening input `%s'", psz_name ); + + if( i != p_sys->i_list_index && i != 0 ) + { + p_list_access = + access_New( s, p_access->psz_access, "", psz_name ); + } + else if( i != p_sys->i_list_index ) + { + p_list_access = p_access; + } + + if( p_list_access ) + { + if( p_sys->p_list_access != p_access ) + access_Delete( p_sys->p_list_access ); + + p_sys->p_list_access = p_list_access; + } + + p_sys->i_list_index = i; + return p_sys->p_list_access->pf_seek( p_sys->p_list_access, + i_pos - i_size ); + } + + return p_access->pf_seek( p_access, i_pos ); +} + + +/** + * Try to read "i_read" bytes into a buffer pointed by "p_read". If + * "p_read" is NULL then data are skipped instead of read. The return + * value is the real numbers of bytes read/skip. If this value is less + * than i_read that means that it's the end of the stream. + */ +int stream_Read( stream_t *s, void *p_read, int i_read ) +{ + return s->pf_read( s, p_read, i_read ); +} + +/** + * Store in pp_peek a pointer to the next "i_peek" bytes in the stream + * \return The real numbers of valid bytes, if it's less + * or equal to 0, *pp_peek is invalid. + * \note pp_peek is a pointer to internal buffer and it will be invalid as + * soons as other stream_* functions are called. + * \note Due to input limitation, it could be less than i_peek without meaning + * the end of the stream (but only when you have i_peek >= + * p_input->i_bufsize) + */ +int stream_Peek( stream_t *s, const uint8_t **pp_peek, int i_peek ) +{ + return s->pf_peek( s, pp_peek, i_peek ); +} + +/** + * Use to control the "stream_t *". Look at #stream_query_e for + * possible "i_query" value and format arguments. Return VLC_SUCCESS + * if ... succeed ;) and VLC_EGENERIC if failed or unimplemented + */ +int stream_vaControl( stream_t *s, int i_query, va_list args ) +{ + return s->pf_control( s, i_query, args ); +} + +/** + * Destroy a stream + */ +void stream_Delete( stream_t *s ) +{ + s->pf_destroy( s ); +} + +int stream_Control( stream_t *s, int i_query, ... ) +{ + va_list args; + int i_result; + + if ( s == NULL ) + return VLC_EGENERIC; + + va_start( args, i_query ); + i_result = s->pf_control( s, i_query, args ); + va_end( args ); + return i_result; +} + +/** + * Read "i_size" bytes and store them in a block_t. + * It always read i_size bytes unless you are at the end of the stream + * where it return what is available. + */ +block_t *stream_Block( stream_t *s, int i_size ) +{ + if( i_size <= 0 ) return NULL; + + /* emulate block read */ + 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 ) + { + return p_bk; + } + } + if( p_bk ) block_Release( p_bk ); return NULL; }