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Add support for write long for DVD sector

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This commit is contained in:
Natalia Portillo
2025-10-06 04:53:30 +01:00
parent cfce456a5c
commit 365f4f534a
2 changed files with 50 additions and 8 deletions
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5
include/aaruformat/context.h
View File

@@ -239,6 +239,11 @@ typedef struct aaruformatContext
AaruMetadataJsonBlockHeader jsonBlockHeader; ///< JSON metadata block header (if present).
uint8_t *jsonBlock; ///< JSON metadata block payload (UTF-8).
uint8_t *sector_id; ///< DVD sector ID (4 bytes) if present.
uint8_t *sector_ied; ///< DVD sector IED (2 bytes) if present.
uint8_t *sector_cpr_mai; ///< DVD sector CPR_MAI (6 bytes) if present.
uint8_t *sector_edc; ///< DVD sector EDC (4 bytes) if present.
} aaruformatContext;
/** \struct DumpHardwareEntriesWithData

53
src/write.c
View File

@@ -580,6 +580,51 @@ int32_t aaruf_write_sector_long(void *context, uint64_t sector_address, bool neg
if(track.sequence == 0 && track.start == 0 && track.end == 0) track.type = Data;
uint64_t corrected_sector_address = sector_address;
// Calculate positive or negative sector
if(negative)
corrected_sector_address -= ctx->userDataDdtHeader.negative;
else
corrected_sector_address += ctx->userDataDdtHeader.negative;
uint64_t total_sectors = ctx->userDataDdtHeader.negative + ctx->imageInfo.Sectors + ctx->userDataDdtHeader.overflow;
// DVD long sector
if(length == 2064 && (
ctx->imageInfo.MediaType == DVDROM ||
ctx->imageInfo.MediaType == PS2DVD ||
ctx->imageInfo.MediaType == SACD ||
ctx->imageInfo.MediaType == PS3DVD ||
ctx->imageInfo.MediaType == DVDR ||
ctx->imageInfo.MediaType == DVDRW ||
ctx->imageInfo.MediaType == DVDPR ||
ctx->imageInfo.MediaType == DVDPRW ||
ctx->imageInfo.MediaType == DVDPRWDL ||
ctx->imageInfo.MediaType == DVDRDL ||
ctx->imageInfo.MediaType == DVDPRDL ||
ctx->imageInfo.MediaType == DVDRAM ||
ctx->imageInfo.MediaType == DVDRWDL ||
ctx->imageInfo.MediaType == DVDDownload ||
ctx->imageInfo.MediaType == Nuon))
{
if(ctx->sector_id == NULL)
ctx->sector_id = calloc(1, 4 * total_sectors);
if(ctx->sector_ied == NULL)
ctx->sector_ied = calloc(1, 2 * total_sectors);
if(ctx->sector_cpr_mai == NULL)
ctx->sector_cpr_mai = calloc(1, 6 * total_sectors);
if(ctx->sector_edc == NULL)
ctx->sector_edc = calloc(1, 4 * total_sectors);
memcpy(ctx->sector_id + corrected_sector_address * 4, data, 4);
memcpy(ctx->sector_ied + corrected_sector_address * 2, data + 4, 2);
memcpy(ctx->sector_cpr_mai + corrected_sector_address * 6, data + 6, 6);
memcpy(ctx->sector_edc + corrected_sector_address * 4, data + 2060, 4);
return aaruf_write_sector(context, sector_address, negative, data + 12, sector_status, 2048);
}
if(length != 2352)
{
FATAL("Incorrect sector size");
@@ -629,14 +674,6 @@ int32_t aaruf_write_sector_long(void *context, uint64_t sector_address, bool neg
bool prefix_correct;
uint64_t corrected_sector_address = sector_address;
// Calculate positive or negative sector
if(negative)
corrected_sector_address -= ctx->userDataDdtHeader.negative;
else
corrected_sector_address += ctx->userDataDdtHeader.negative;
// Split raw cd sector data in prefix (sync, header), user data and suffix (edc, ecc p, ecc q)
switch(track.type)
{