Add Media-Protect patch for libdvdread-4.1.3.

[overlay.git] / media-libs / libdvdread / files / libdvdread-4.1.3-media-protect.patch

diff --git a/media-libs/libdvdread/files/libdvdread-4.1.3-media-protect.patch b/media-libs/libdvdread/files/libdvdread-4.1.3-media-protect.patch
new file mode 100644 (file)
index 0000000..4132c14
--- /dev/null
+++ b/media-libs/libdvdread/files/libdvdread-4.1.3-media-protect.patch
@@ -0,0 +1,125 @@
+diff -Nur libdvdread-4.1.3_p1168-orig/src/dvd_input.c libdvdread-4.1.3_p1168/src/dvd_input.c
+--- libdvdread-4.1.3_p1168-orig/src/dvd_input.c        2009-03-09 18:41:50.000000000 +0100
++++ libdvdread-4.1.3_p1168/src/dvd_input.c     2010-08-16 01:52:24.000000000 +0200
+@@ -332,6 +332,8 @@
+   }
+ #endif /* HAVE_DVDCSS_DVDCSS_H */
+ 
++  fprintf(stderr, "libdvdread patched to play DVDs with DVD-Movie-Protect\n");
++
+   if(dvdcss_library != NULL) {
+     /*
+     char *psz_method = getenv( "DVDCSS_METHOD" );
+diff -Nur libdvdread-4.1.3_p1168-orig/src/dvd_udf.c libdvdread-4.1.3_p1168/src/dvd_udf.c
+--- libdvdread-4.1.3_p1168-orig/src/dvd_udf.c  2009-03-09 18:41:50.000000000 +0100
++++ libdvdread-4.1.3_p1168/src/dvd_udf.c       2010-08-16 01:53:03.000000000 +0200
+@@ -38,10 +38,16 @@
+ #include <sys/stat.h>
+ #include <unistd.h>
+ #include <inttypes.h>
++#ifndef __WIN32__
++#include <fnmatch.h>
++#endif
+ 
+ #include "dvdread/dvd_reader.h"
+ #include "dvdread/dvd_udf.h"
+ 
++#include "dvdread/ifo_types.h"
++#include "dvdread/ifo_read.h"
++
+ /* Private but located in/shared with dvd_reader.c */
+ extern int UDFReadBlocksRaw( dvd_reader_t *device, uint32_t lb_number,
+                              size_t block_count, unsigned char *data,
+@@ -784,7 +790,7 @@
+   return part->valid;
+ }
+ 
+-uint32_t UDFFindFile( dvd_reader_t *device, char *filename,
++static uint32_t UDFFindFileReal( dvd_reader_t *device, char *filename,
+                       uint32_t *filesize )
+ {
+   uint8_t LogBlock_base[ DVD_VIDEO_LB_LEN + 2048 ];
+@@ -863,6 +869,83 @@
+     return partition.Start + File.Location;
+ }
+ 
++/**
++ * Get the offset from the ifo files to allow playback of DVDs
++ * with a deliberately broken UDF file system (aka DVD-Movie-Protect).
++ * When the file is not an IFO or VOB, it calls the real UDF routine.
++ */
++uint32_t UDFFindFile( dvd_reader_t *device, char *filename,
++                    uint32_t *filesize )
++{
++#ifndef __WIN32__
++  if (!fnmatch("/VIDEO_TS/VTS_[0-9][0-9]_[0-9].???", filename, FNM_PATHNAME)) {
++#else
++  if (strlen("/VIDEO_TS/VTS_01_1.VOB") == strlen(filename)
++      && !strncmp(filename, "/VIDEO_TS/VTS_", strlen("/VIDEO_TS/VTS_"))       ) {
++#endif
++              size_t len = strlen(filename);
++              char *extension = &filename[len-3];
++              if (!strcmp(extension, "IFO") || !strcmp(extension, "VOB")) {
++                      int title = atoi(&filename[len-8]);
++                      int part = atoi(&filename[len-5]);
++
++                      ifo_handle_t *ifo_handle = ifoOpen(device, 0);
++                      if (0 == ifo_handle)
++                              return 0;
++
++                      uint32_t tmp_filesize;
++                      uint32_t offset = UDFFindFileReal(device, "/VIDEO_TS/VIDEO_TS.IFO", &tmp_filesize);
++
++                      int i;
++                      for (i=0; i<ifo_handle->tt_srpt->nr_of_srpts; i++)
++                              if (title == ifo_handle->tt_srpt->title[i].title_set_nr)
++                                      break;
++
++                      if (i == ifo_handle->tt_srpt->nr_of_srpts) {
++                              /* not found */
++                              ifoClose(ifo_handle);
++                              return 0;
++                      }
++                      offset += ifo_handle->tt_srpt->title[i].title_set_sector;
++                      ifoClose(ifo_handle);
++
++                      if (!strcmp(extension, "VOB")) {
++                              ifo_handle = ifoOpen(device, title);
++                              if (0 == ifo_handle)
++                                      return 0;
++
++                              switch(part) {
++                                      case 0:
++                                              if (0 == ifo_handle->vtsi_mat->vtsm_vobs) {
++                                                      ifoClose(ifo_handle);
++                                                      return 0;
++                                              }
++                                              offset += ifo_handle->vtsi_mat->vtsm_vobs;
++                                              break;
++                                      case 1:
++                                              if (0 == ifo_handle->vtsi_mat->vtstt_vobs) {
++                                                      ifoClose(ifo_handle);
++                                                      return 0;
++                                              }
++                                              offset += ifo_handle->vtsi_mat->vtstt_vobs;
++                                              break;
++                                      default: /* can't get other parts (also no need to) */
++                                              offset = 0;
++                                              break;
++                              }
++
++                              ifoClose(ifo_handle);
++                      }
++
++
++                      *filesize = 1000000; /* File size unknown */
++                      if (offset != 0)
++                              return offset;
++              }
++      }
++
++      return UDFFindFileReal( device, filename, filesize);
++}
+ 
+ 
+ /**