Commit graph

8 commits

Author SHA1 Message Date
Aurélien Zanelli
6d767a09d8 tsdemux: fix overflow of packet_length field of PESHeader
packet_length is defined as a guint16 in the PESHeader structure. This
definition match the specification. But since we add 6 bytes to the
packet_length value (length of start_code + stream_id + packet_length),
we can overflow the guint16 when the value in the PES header is greater
than 65529.
So use a guint32 instead of a guint16 to avoid overflow.

https://bugzilla.gnome.org/show_bug.cgi?id=736490
2014-09-12 11:27:52 +02:00
Edward Hervey
21ebc7708d pesparse: Refactory secondary PES extension handling
Some streams had wrong values for the stream_id_extension, make sure
we only remember the valid ones.

For streams with PES_extension_field_length == 0, assume there's nothing
else.

For streams that state they have a TREF extension but don't have enough
data to store it, just assume it was produced by a non-compliant muxer
and skip the remaining data.

Only store remaining data in stream_id_extension_data instead of storing
data we already parse.
2013-08-14 13:41:37 +02:00
Edward Hervey
5208b8a050 pesparse: Remove unused argument
We always provided 0 as the offset and never used the returned value.

Based on feedback from Stas Sergeev <stsp@list.ru>

https://bugzilla.gnome.org/show_bug.cgi?id=657343
2013-08-14 10:33:14 +02:00
Edward Hervey
92edd82c86 mpegtsdemux: Switch to MPEG-TS SI library
* Only mpeg-ts section packetization remains.
* Improve code to detect duplicated sections as early as possible
* Add FIXME for various issues that need fixing (but are not regressions)

https://bugzilla.gnome.org/show_bug.cgi?id=702724
2013-07-03 09:17:25 +02:00
Tim-Philipp Müller
9e1b75fda3 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:09:59 +00:00
Edward Hervey
8b80114101 mpegts: Use G_GNUC_INTERNAL 2012-08-14 19:07:24 +02:00
Edward Hervey
d0e8427b4e pesparse: Fix stuffing byte handling
We in fact get the size of the header (including stuffing bytes), therefore
use that instead of trying to skip 0xff bytes ourselves since some media
streams do start with 0xff (like mpeg audio's initial 0xfff).
2011-07-20 19:19:13 +02:00
Edward Hervey
6f9a6cc2ba mpegtsdemux: Add standalone PES parser 2011-07-18 09:13:14 +02:00