Commit 9efc85f7 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
Browse files

stream_access: remove peek callbacks

parent b78ea82b
......@@ -30,7 +30,6 @@
#include <string.h>
#include <vlc_common.h>
#include <vlc_memory.h>
#include <libvlc.h>
#include "stream.h"
......@@ -147,10 +146,6 @@ struct stream_sys_t
} stream;
/* Peek temporary buffer */
unsigned int i_peek;
uint8_t *p_peek;
/* Stat for both method */
struct
{
......@@ -163,14 +158,12 @@ 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, 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, uint64_t i_pos );
static void AStreamPrebufferStream( stream_t *s );
static int AReadStream( stream_t *s, void *p_read, unsigned int i_read );
......@@ -184,11 +177,6 @@ static int AStreamReadError( stream_t *s, void *p_read, unsigned int i_read )
(void) s; (void) p_read; (void) i_read;
return VLC_EGENERIC;
}
static int AStreamPeekError( stream_t *s, const uint8_t **pp_peek, unsigned int i_read )
{
(void) s; (void) pp_peek; (void) i_read;
return VLC_EGENERIC;
}
static input_item_t * AStreamReadDirError( stream_t *s )
{
(void) s;
......@@ -216,7 +204,6 @@ stream_t *stream_AccessNew( access_t *p_access )
}
s->pf_read = AStreamReadError; /* Replaced later */
s->pf_peek = AStreamPeekError; /* Replaced later */
s->pf_readdir = AStreamReadDirError; /* Replaced later */
s->pf_control = AStreamControl;
s->pf_destroy = AStreamDestroy;
......@@ -238,15 +225,10 @@ stream_t *stream_AccessNew( access_t *p_access )
p_sys->stat.i_read_time = 0;
p_sys->stat.i_read_count = 0;
/* Peek */
p_sys->i_peek = 0;
p_sys->p_peek = NULL;
if( p_sys->method == STREAM_METHOD_BLOCK )
{
msg_Dbg( s, "Using block method for AStream*" );
s->pf_read = AStreamReadBlock;
s->pf_peek = AStreamPeekBlock;
/* Init all fields of p_sys->block */
p_sys->block.i_start = p_sys->i_pos;
......@@ -272,7 +254,6 @@ stream_t *stream_AccessNew( access_t *p_access )
msg_Dbg( s, "Using stream method for AStream*" );
s->pf_read = AStreamReadStream;
s->pf_peek = AStreamPeekStream;
/* Allocate/Setup our tracks */
p_sys->stream.i_offset = 0;
......@@ -341,8 +322,6 @@ static void AStreamDestroy( stream_t *s )
else if( p_sys->method == STREAM_METHOD_STREAM )
free( p_sys->stream.p_buffer );
free( p_sys->p_peek );
stream_CommonDelete( s );
vlc_access_Delete( p_sys->p_access );
free( p_sys );
......@@ -637,73 +616,6 @@ static int AStreamReadBlock( stream_t *s, void *p_read, unsigned int i_read )
return i_data;
}
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;
unsigned int i_data = 0;
block_t *b;
unsigned int i_offset;
if( p_sys->block.p_current == NULL ) return 0; /* EOF */
/* We can directly give a pointer over our buffer */
if( i_read <= p_sys->block.p_current->i_buffer - p_sys->block.i_offset )
{
*pp_peek = &p_sys->block.p_current->p_buffer[p_sys->block.i_offset];
return i_read;
}
/* We need to create a local copy */
if( p_sys->i_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;
return 0;
}
p_sys->i_peek = i_read;
}
/* Fill enough data */
while( p_sys->block.i_size - (p_sys->i_pos - p_sys->block.i_start)
< i_read )
{
block_t **pp_last = p_sys->block.pp_last;
if( AStreamRefillBlock( s ) ) break;
/* Our buffer are probably filled enough, don't try anymore */
if( pp_last == p_sys->block.pp_last ) break;
}
/* Copy what we have */
b = p_sys->block.p_current;
i_offset = p_sys->block.i_offset;
p_data = p_sys->p_peek;
while( b && i_data < i_read )
{
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 );
i_data += i_copy;
p_data += i_copy;
i_offset += i_copy;
if( i_offset >= b->i_buffer )
{
i_offset = 0;
b = b->p_next;
}
}
*pp_peek = p_sys->p_peek;
return i_data;
}
static int AStreamSeekBlock( stream_t *s, uint64_t i_pos )
{
stream_sys_t *p_sys = s->p_sys;
......@@ -917,69 +829,6 @@ static int AStreamReadStream( stream_t *s, void *p_read, unsigned int i_read )
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];
uint64_t i_off;
if( tk->i_start >= tk->i_end ) return 0; /* EOF */
#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
/* Avoid problem, but that should *never* happen */
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 )
{
if( p_sys->stream.i_used <= 1 )
{
/* Be sure we will read something */
p_sys->stream.i_used += tk->i_start + p_sys->stream.i_offset + i_read - tk->i_end;
}
if( AStreamRefillStream( s ) )
{
if( tk->i_end < tk->i_start + p_sys->stream.i_offset )
return 0; /* EOF */
i_read = tk->i_end - tk->i_start - p_sys->stream.i_offset;
break;
}
}
/* Now, direct pointer or a copy ? */
i_off = (tk->i_start + p_sys->stream.i_offset) % STREAM_CACHE_TRACK_SIZE;
if( i_off + i_read <= STREAM_CACHE_TRACK_SIZE )
{
*pp_peek = &tk->p_buffer[i_off];
return i_read;
}
if( p_sys->i_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;
return 0;
}
p_sys->i_peek = i_read;
}
memcpy( p_sys->p_peek, &tk->p_buffer[i_off],
STREAM_CACHE_TRACK_SIZE - i_off );
memcpy( &p_sys->p_peek[STREAM_CACHE_TRACK_SIZE - i_off],
&tk->p_buffer[0], i_read - (STREAM_CACHE_TRACK_SIZE - i_off) );
*pp_peek = p_sys->p_peek;
return i_read;
}
static int AStreamSeekStream( stream_t *s, uint64_t i_pos )
{
stream_sys_t *p_sys = s->p_sys;
......
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