summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--src/file_dv.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/file_dv.c b/src/file_dv.c
index d28aef7..6eed052 100644
--- a/src/file_dv.c
+++ b/src/file_dv.c
@@ -32,6 +32,7 @@
static void register_header_check_dv(file_stat_t *file_stat);
static int header_check_dv(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new);
+static int data_check_dv(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery);
const file_hint_t file_hint_dv= {
.extension="dv",
@@ -56,11 +57,28 @@ static int header_check_dv(const unsigned char *buffer, const unsigned int buffe
/* The header may be only 3 bytes */
if(buffer[0]==0x1f && buffer[1]==0x07 && buffer[2]==0x00 && buffer[5]==0x78 && buffer[6]==0x78 && buffer[7]==0x78)
{
+ /* NTSC */
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_dv.extension;
+ file_recovery_new->data_check=data_check_dv;
+ file_recovery_new->file_check=&file_check_size;
return 1;
}
return 0;
}
+static int data_check_dv(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
+{
+ while(file_recovery->calculated_file_size + buffer_size/2 >= file_recovery->file_size &&
+ file_recovery->calculated_file_size + 8 < file_recovery->file_size + buffer_size/2)
+ {
+ const unsigned int i=file_recovery->calculated_file_size - file_recovery->file_size + buffer_size/2;
+ if(buffer[i]==0x1f && buffer[i+1]==0x07 && buffer[i+2]==0x00 &&
+ buffer[i+5]==0x78 && buffer[i+6]==0x78 && buffer[i+7]==0x78)
+ file_recovery->calculated_file_size+=120000;
+ else
+ return 2;
+ }
+ return 1;
+}