Parsing can return with an 'invalid' state, but this is not
actually fatal. For one, the mpeg2dec command line tool that
comes with the libmpeg2 library blithely ignores this condition
and merrily goes on. So we do this same, logging the error,
and going on with parsing. This makes something work that did
not use to work, and brings happiness to the world.
https://bugzilla.gnome.org/show_bug.cgi?id=429476
Position queries are badly handled for DVDs (probably due to the division in
chapters): the time returned was the time since the start of chapter.
Now ask upstream for position queries, fall back to the old code if upstream
cannot answer the query.
The repeat first field flag was introduced in 0.5.0 so conditionally disable its
detection and just assume no rff is used. This fixes the compilation.
Fixes#582375
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_negotiate_format):
Last change introduced a regression that made mpeg2dec handle
some 4:2:2 videos as 4:4:4. Fixes bug #562086.
Original commit message from CVS:
Patch by: Simon Holm Thøgersen <odie at cs dot aau dot dk>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_chain):
Add support for the STATE_SEQUENCE_MODIFIED state in mpeg2dec
>= 0.5.0. Fixes bug #562065.
Original commit message from CVS:
Patch by: Robin Stocker <robin at nibor dot org>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_init),
(handle_sequence), (gst_mpeg2dec_setcaps):
* ext/mpeg2dec/gstmpeg2dec.h:
Prefer the container's PAR over the stream's PAR if it's
given in the srcpad caps. Fixes bug #556184.
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (handle_sequence):
Don't allow width/height outside the spec (i.e. smaller than 16
and higher than 4096). Such files are corrupted ones and setting
caps that are not a subset of the template caps confuses playbin.
Fixes bug #542646.
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c:
Reset decoder when handling sequence where libmpeg2 has set
frame period to 0, probably due to a corrupt packet.
Fixes bug #514297
Original commit message from CVS:
* configure.ac:
* ext/mpeg2dec/gstmpeg2dec.c: (crop_buffer):
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_descramble_buffer):
* gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_chain_raw):
Fix build against core CVS by not using deprecated API. Bump
requirements for new API (overdue anyway).
Original commit message from CVS:
Patch by: Zaheer Abbas Merali <zaheermerali at gmail com>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_chain):
Never post a (fatal) error message on the bus on decoding errors. We
should only do this if we can't recover, but mpeg2dec can always
recover. This is needed for DVB streams, for example, where there
may be temporary glitches in the stream. Instead of an error
message, post a warning message on the bus for every N decoding
errors. Fixes#370020.
Original commit message from CVS:
Patch by: Sebastian Dröge <slomo@circular-chaos.org>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_init),
(gst_mpeg2dec_reset), (gst_mpeg2dec_alloc_sized_buf),
(gst_mpeg2dec_alloc_buffer), (init_dummybuf), (handle_slice):
* ext/mpeg2dec/gstmpeg2dec.h:
Align buffers to a 16 byte boundary so the altivec optimisations
don't crash. Fixes#327350.
