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Added better period_time setup to the ALSA output code.

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Added end-of-file checking to the libac3.
This commit is contained in:
Jaroslav Kysela 2001-05-08 08:55:33 +00:00
parent 3d1998857a
commit c40c3b5623
6 changed files with 47 additions and 23 deletions
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24
ac3dec/libac3/parse.c
View file

@ -24,6 +24,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include "ac3.h"
#include "ac3_internal.h"
@ -114,9 +115,10 @@ parse_syncinfo_data(syncinfo_t *syncinfo, uint_8 *data)
}
/* Parse a syncinfo structure, minus the sync word */
void
int
parse_syncinfo(syncinfo_t *syncinfo)
{
int byte, idx;
uint_8 data[3];
uint_16 sync_word = 0;
uint_32 time_out = 1<<16;
@ -128,7 +130,10 @@ parse_syncinfo(syncinfo_t *syncinfo)
//
while(time_out--)
{
sync_word = (sync_word << 8) + bitstream_get_byte();
byte = bitstream_get_byte();
if (byte < 0)
return -ENOENT;
sync_word = (sync_word << 8) + byte;
if(sync_word == 0x0b77)
break;
@ -138,14 +143,18 @@ parse_syncinfo(syncinfo_t *syncinfo)
// We need to read in the entire syncinfo struct (0x0b77 + 24 bits)
// in order to determine how big the frame is
//
data[0] = bitstream_get_byte();
data[1] = bitstream_get_byte();
data[2] = bitstream_get_byte();
for (idx = 0; idx < 3; idx++) {
byte = bitstream_get_byte();
if (byte < 0)
return -ENOENT;
data[idx] = byte;
}
parse_syncinfo_data(syncinfo, data);
// Buffer the entire syncframe
bitstream_buffer_frame(syncinfo->frame_size * 2 - 5);
if (bitstream_buffer_frame(syncinfo->frame_size * 2 - 5) < 0)
return -ENOENT;
// Check the crc over the entire frame
crc_init();
@ -159,11 +168,12 @@ parse_syncinfo(syncinfo_t *syncinfo)
{
error_flag = 1;
fprintf(stderr,"** CRC failed - skipping frame **\n");
return;
return 0;
}
if (!(ac3_config.flags & AC3_QUIET))
stats_print_syncinfo(syncinfo);
return 0;
}
/*