mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-19 06:46:38 +00:00
Code Issues 1 Projects Releases Wiki Activity

ext/dvdread/dvdreadsrc.c: Make check stronger.

Browse source 
Original commit message from CVS:
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_is_nav_pack):
Make check stronger.
This commit is contained in:
Tim-Philipp Müller 2006-06-29 12:25:15 +00:00
parent 3142e1a289
commit b756660a3c
2 changed files with 29 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
ChangeLog
View file

@ -1,3 +1,8 @@
2006-06-29 Tim-Philipp Müller <tim at centricular dot net>
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_is_nav_pack):
Make check stronger.
2006-06-28 Tim-Philipp Müller <tim at centricular dot net>
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_setup_pad),

29
ext/dvdread/dvdreadsrc.c
View file

@ -510,13 +510,32 @@ gst_dvd_read_src_get_next_cell_for (GstDvdReadSrc * src, gint cell)
return cell + 1; /* really +1? (tpm) */
}
/* Returns true if the pack is a NAV pack. This check is clearly insufficient,
* and sometimes we incorrectly think that valid other packs are NAV packs. I
* need to make this stronger. */
/* Returns true if the pack is a NAV pack */
static gboolean
gst_dvd_read_src_is_nav_pack (const guint8 * buffer)
gst_dvd_read_src_is_nav_pack (const guint8 * data)
{
return (buffer[41] == 0xbf && buffer[1027] == 0xbf);
if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
return FALSE;
/* Check that this is substream 0 (PCI) */
if (data[0x2c] != 0)
return FALSE;
if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
return FALSE;
/* Check that this is substream 1 (DSI) */
if (data[0x406] != 1)
return FALSE;
/* Check sizes of PCI and DSI packets */
if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
return FALSE;
if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
return FALSE;
return TRUE;
}
typedef enum