Original commit message from CVS:
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_process_chunk):
Skip chunks for unknown streams properly. Fixes broken sound
and/or video for files that have additional streams that
we don't recognise yet (e.g. if they are embedded in extended
stream properties). Partly fixes#343763.
Original commit message from CVS:
* gst/asfdemux/asfheaders.c:
* gst/asfdemux/asfheaders.h:
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_identify_guid),
(gst_asf_demux_process_header), (gst_asf_demux_push_obj),
(gst_asf_demux_pop_obj), (gst_asf_demux_process_object),
(gst_asf_demux_change_state):
* gst/asfdemux/gstasfdemux.h:
Add some more GUIDs and make debug log more readable
and easier to follow when parsing the headers.
Original commit message from CVS:
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_init),
(gst_dvd_read_src_is_seekable), (gst_dvd_read_src_class_init),
(gst_dvd_read_src_stop), (gst_dvd_read_src_goto_title),
(gst_dvd_read_src_create), (gst_dvd_read_src_handle_seek_event),
(gst_dvd_read_src_do_seek), (gst_dvd_read_src_src_event):
* ext/dvdread/dvdreadsrc.h:
Rewrite seeking code and make seeking in DVDs work (#337834).
Original commit message from CVS:
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_setup_pad),
(gst_asf_demux_add_audio_stream), (gst_asf_demux_add_video_stream),
(gst_asf_demux_push_buffer):
* gst/asfdemux/gstasfdemux.h:
Handle unknown codec IDs/fourccs properly (#345879); send tag
events after newsegment event; fix use of GST_FOURCC_FORMAT
macro.
Original commit message from CVS:
* ext/a52dec/gsta52dec.c: (plugin_init):
Call the channel positions get_type() method in plugin_init
to ensure that it isn't simultaneously called later from
multiple threads.
Original commit message from CVS:
* gst/mpegstream/gstmpegpacketize.c:
(gst_mpeg_packetize_flush_cache), (gst_mpeg_packetize_put):
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_chain):
Also flush packetizer cache when we get a buffer that has the
DISCONT flag set; update current byte position from buffer
offset after a flush.
Original commit message from CVS:
* gst/mpegstream/gstmpegpacketize.c: (gst_mpeg_packetize_new),
(gst_mpeg_packetize_flush_cache), (gst_mpeg_packetize_destroy),
(gst_mpeg_packetize_read):
* gst/mpegstream/gstmpegpacketize.h:
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_process_event),
(gst_mpeg_parse_change_state):
Flush packetizer cache when we get a FLUSH_STOP event;
remove unused source pad member from packetizer; add debug
category for packetizer.
Original commit message from CVS:
* ext/a52dec/gsta52dec.c: (gst_a52dec_channels), (plugin_init):
Treat dual-mono as stereo. It should really be output on 2 separate
pads, but isn't for now.
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_negotiate_format):
Assume pixel-aspect-ratio of 4:3 if libmpeg2dec doesn't give us
any PAR whatsoever (rather than using 0/0, which will lead to
an abort later on). Fixes#345184.
Original commit message from CVS:
Patch by: Michael Dominic K. < mdk at mdk org pl>
* ext/mad/gstmad.c: (gst_mad_chain):
Send newsegment event before calling
gst_pad_alloc_buffer_and_set_caps(), makes mad behave better
in connection with pad blocking (#342594). While we're at it,
do some minor clean-ups.
Original commit message from CVS:
* ext/a52dec/Makefile.am:
... and then he said "When you go and fix the build you
better make sure you have some spare backslashes in your
pocket".
Original commit message from CVS:
* ext/sidplay/gstsiddec.cc:
Fix copyright, email addresses and descriptions.
Use saner defaults for arguments. Fixes#344667.
constify some stuff.
Fix memleaks.
Add tags.
Fix negotiation to do mono/44100 by default.
Post error messages.
Use _scale_int where possible.
Original commit message from CVS:
* tests/check/elements/amrnbenc.c: (push_data):
Init memory before feeding it to the encoder to make
the valgrind test succeed.
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_finalize),
(gst_mpeg2dec_reset), (clear_buffers), (handle_picture),
(gst_mpeg2dec_sink_convert), (gst_mpeg2dec_src_convert),
(gst_mpeg2dec_change_state):
* ext/mpeg2dec/gstmpeg2dec.h:
Simplify and don't leak our buffer pool.
Use _scale_int.
Remove unfixed bug number from previous ChangeLog entry.
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_base_init),
(gst_mpeg2dec_class_init), (gst_mpeg2dec_init),
(gst_mpeg2dec_finalize), (gst_mpeg2dec_reset),
(gst_mpeg2dec_qos_reset), (gst_mpeg2dec_alloc_buffer),
(gst_mpeg2dec_negotiate_format), (init_dummybuf),
(handle_sequence), (handle_picture), (handle_slice),
(gst_mpeg2dec_chain), (gst_mpeg2dec_sink_event),
(gst_mpeg2dec_src_event), (gst_mpeg2dec_change_state):
* ext/mpeg2dec/gstmpeg2dec.h:
Fix padtemplate as we can now do fractional framerates.
Small cleanups.
Use GstSegment.
Add simple frame dropping QoS.
Precalc buffer output sizes and UV offsets.
Always give libmpeg2 a valid fbuf when it wants one.
don't trust libmpeg to discard our buffers but manage it
ourselves.
Fixes#343627, #327350, #335288
Original commit message from CVS:
* win32/MANIFEST:
Add a manifest for futures ugly win32 releases.
* gst/iec958/ac3iec.c: (ac3iec_chain_raw):
Move bufcaps declaration at the begining of the instructions
block.
Original commit message from CVS:
* README:
Replace current README (containing the release notes from
some 0.9.x version) with a proper README taken from the core.
Original commit message from CVS:
* ext/amrnb/amrnbdec.c: (gst_amrnbdec_event), (gst_amrnbdec_chain):
* ext/amrnb/amrnbparse.c: (gst_amrnbparse_init),
(gst_amrnbparse_sink_event), (gst_amrnbparse_chain),
(gst_amrnbparse_sink_activate), (gst_amrnbparse_state_change):
* ext/amrnb/amrnbparse.h:
Sortof first quick cleanup of all this mess...
Don't crap out on empty and invalid FTs but treat them as
empty packets, the decoder handles them fine.
Fixes#342222.
Original commit message from CVS:
* gst/asfdemux/gstasf.c: (plugin_init):
Call gst_riff_init() so the riff debug category gets set up
before it is being used.
Original commit message from CVS:
* gst/iec958/ac3_padder.c: (ac3p_parse):
* gst/iec958/ac3_padder.h:
* gst/iec958/ac3iec.c: (ac3iec_init), (ac3iec_set_property),
(ac3iec_chain_raw), (ac3iec_change_state):
* gst/iec958/ac3iec.h:
Write rate into the caps, for the allowed ac3 rates. Some minor
cleanups.
Original commit message from CVS:
Patch by: James "Doc" Livingston <doclivingston gmail com>
* ext/mad/gstid3tag.c: (gst_id3_tag_get_tag_to_render):
Do tag merging correctly (#339918). Output taglists
properly in debug statements too while we're at it.
Original commit message from CVS:
* ext/a52dec/gsta52dec.c: (gst_a52dec_chain):
Add more debug
* gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcm_reset),
(gst_dvdlpcmdec_init), (update_timestamps),
(gst_dvdlpcmdec_chain_dvd), (gst_dvdlpcmdec_chain_raw),
(dvdlpcmdec_sink_event):
* gst/dvdlpcmdec/gstdvdlpcmdec.h:
If we have a first_access offset but no current timestamp (might
happen after a seek), then calculate a start time for the first
portion so that it will align with the timestamp given for the
first_access portion.
If a new-segment arrives with format time, store the start
time as a failsafe timestamp in case we never get any further
timestamp info (unlikely)
Mask out the 'frame number' section of the incoming header so
that we don't consider it to be changing on every buffer and
reset the caps constantly.
Use gst_util_uint64_scale for duration calculation
Original commit message from CVS:
* gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_chain_dvd):
Fix timestamping for cases where the first_access parameter is 4.
Ensure we don't overrun buffers in other cases.
Original commit message from CVS:
* ext/lame/gstlame.c: (gst_lame_get_type),
(gst_lame_release_memory), (gst_lame_init), (gst_lame_sink_event),
(gst_lame_setup), (gst_lame_change_state):
* ext/lame/gstlame.h:
Remove tag writing from lame (which was completely broken
anyway, #329184). Leaving GstTagSetter interface around for
now, albeit non-functional. Should be removed completely
in 0.11. Use the 'id3v2mux' plugin from -good for writing
tags.
Original commit message from CVS:
Patch by: Andres Salomon <dilinger at debian org>
* ext/lame/gstlame.c: (gst_lame_sink_event):
Fix typo (comma vs. semicolon) (#340710).
Original commit message from CVS:
Patch by: Lutz Müller <lutz at topfrose de>
* ext/mad/gstmad.c: (gst_mad_init), (gst_mad_src_query):
Make mad the second element to support the highly useful
FORMATS query (#340594)
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_sink_convert),
(gst_mpeg2dec_src_query):
Remember the query duration format before passing it upstream since it
could have been modified.
Add GST_WARNING_OBJECT in sink convert function to detail why the
conversion didn't work.
Original commit message from CVS:
* ext/mad/gstid3tag.c:
* ext/mad/gstmad.c:
* gst/ac3parse/gstac3parse.c:
* gst/dvdlpcmdec/gstdvdlpcmdec.c:
* gst/synaesthesia/gstsynaesthesia.c:
Define GstElementDetails as const and also static (when defined as
global)
Original commit message from CVS:
* ext/dvdnav/dvdnavsrc.c: (gst_dvd_nav_src_push_titlelang_event):
Fix name of custom event (use same as dvdreadsrc).
* gst/dvdsub/gstdvdsubdec.c: (gst_dvd_sub_dec_chain),
(gst_dvd_sub_dec_sink_event), (gst_dvd_sub_dec_handle_dvd_event):
Fix event parsing (the event name is in the structure, not the
name of the structure itself); also fix indentation after
boilerplate macro.
Original commit message from CVS:
Patch by: Alexander Lancaster <alexl at users sourceforge net>
* ext/mad/gstid3tag.c: (gst_id3_tag_get_caps), (gst_id3_tag_init),
(gst_id3_tag_sink_event), (gst_id3_tag_src_link),
(gst_id3_tag_chain):
When acting as a muxer, set caps on outgoing buffers and set caps
on source pad (fixes#323658). Remove unused application/x-gst-tags
cruft from the 0.6 days.
Original commit message from CVS:
* ext/mad/gstmad.c: (gst_mad_convert_sink), (gst_mad_convert_src),
(gst_mad_src_query), (gst_mad_chain):
.. and DEFAULT queries should work too. Use magic gst util scale
functions in some places.
Original commit message from CVS:
Patch by: Ed Catmur <ed at catmur dot co dot uk>
* ext/lame/gstlame.c: (gst_lame_sink_event):
Don't crash if we get an EOS event before the encoder
has been set up (#339287).
Original commit message from CVS:
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_start),
(gst_dvd_read_src_goto_title), (gst_dvd_read_src_read),
(gst_dvd_read_src_create), (gst_dvd_read_src_goto_sector):
Move errors out of the normal code flow.
Don't send eos, basesrc will do that for us when needed.
Original commit message from CVS:
* gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_change_state):
* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_change_state):
* gst/mpegstream/gstrfc2250enc.c: (gst_rfc2250_enc_change_state):
Do state changes correctly
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_alloc_sized_buf),
(gst_mpeg2dec_alloc_buffer):
Can't use gst_pad_alloc_buffer*() when we are going to crop
the image before sending it out. Downstream basetransform-based
elements will complain about the wrong unit size otherwise
(when not operating in passthrough-mode at least).
Const-ify some static variables and do some minor clean-ups.
Use I420 macros for size/offsets (not really necessary in this
particular context, but this kind of code gets copy'n'pasted).
Original commit message from CVS:
* gst/mpegstream/gstmpegpacketize.c: (gst_mpeg_packetize_put),
(read_cache):
* gst/mpegstream/gstmpegpacketize.h:
g_malloc() can't fail, we don't need to handle this. Same for
gst_buffer_new_and_alloc().
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_chain):
klass->send_buffer() should have the same semantics as
gst_pad_push(), ie. ownership of the buffer is transfered,
so we never have to unref the buffer no matter what the flow
return value was.
Original commit message from CVS:
add test for amrnbenc, enable test infrastructure, and fix a leak
* common/check.mak:
allow for specifying more than one suppressions file in SUPPRESSIONS
* Makefile.am:
* tests/Makefile.am:
* tests/check/.cvsignore:
* tests/check/Makefile.am:
* tests/check/elements/.cvsignore:
* configure.ac:
add tests/check
* tests/check/gst-plugins-ugly.supp:
add suppressions for libs used by -ugly
* tests/check/elements/amrnbenc.c: (buffer_new), (buffer_unref),
(setup_amrnbenc), (cleanup_amrnbenc), (push_data),
(GST_START_TEST), (amrnbenc_suite), (main):
add a simple test for encoding amr
* ext/amrnb/amrnbenc.c: (gst_amrnbenc_init):
fix pad template leaks
Original commit message from CVS:
* ext/mad/gstmad.c: (index_seek):
move GstIndexEntry *entry variable declaration before
the first instruction
* ext/mad/gstmad.c:
remove debug macros with variable number of parameter by using
GST_DEBUG for WIN32
* gst/dvdsub/gstdvdsubdec.c: (gst_dvd_sub_dec_parse_subpic):
use gst_guint64_to_gdouble for conversions
* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_sync_stream_to_time):
replace __FUNCTION__ which is not supported by MSVC by the current function name
* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_reset):
remove LL suffix by using G_GINT64_CONSTANT
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_parse_packhead),(gst_mpeg_parse_get_rate):
use gst_guint64_to_gdouble for conversions
* gst/mpegstream/gstmpegparse.h:
remove LL suffix by using G_GINT64_CONSTANT
* win32/vs6:
add project files for tagac3parse, asfdemux, dvdlpcmdec, dvdsub, iec958, lame,
mad, mpegaudioparse, mpegstream, realmedia, synaesthesia
Original commit message from CVS:
Patch by: Fabrizio Gennari <fabrizio dot ge at tiscali dot it>
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_sink_event),
(gst_asf_demux_push_buffer):
Send newsegment event only once per pad, fixes#336550.
Original commit message from CVS:
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_handle_src_event):
Don't unref event unconditionally after giving away ownership
(gst_pad_push_event(), gst_pad_send_event() and
gst_pad_event_default() take ownership of the event
passed to them). Fixes warnings/crashes caused by
navigation events.
Original commit message from CVS:
* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_subbuffer):
Don't ref NULL caps (private streams have NULL caps) (#336387);
also, no need to set caps on the same buffer twice.
Original commit message from CVS:
* gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_process_event),
(gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_get_audio_stream),
(gst_dvd_demux_get_subpicture_stream):
* gst/mpegstream/gstmpegdemux.c:
(gst_mpeg_demux_sync_stream_to_time):
Don't leak element and pad names in error messages, use
GST_DEBUG_PAD_NAME instead. Add some more debug code.
Original commit message from CVS:
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_init),
(gst_dvd_read_src_goto_title), (gst_dvd_read_src_read):
Name the structure in the custom event with the
language codes for the audio and subtitle streams
actually like dvddemux expects it to be named.
Set caps on source pad and outgoing buffers.
Original commit message from CVS:
* ext/lame/gstlame.c: (gst_lame_init), (gst_lame_set_property),
(gst_lame_get_property), (gst_lame_setup):
* ext/lame/gstlame.h:
Make xingheader property non-functional, it's broken anyway
after all (use xingmux instead).
Original commit message from CVS:
* ext/lame/gstlame.c: (gst_lame_sink_event):
On EOS, flush encoder and send remaining data. Fix
return value handling in sink event function.
Original commit message from CVS:
Patch by: Jürg Billeter <j at bitron dot ch>
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_set_property):
Fix wrong check for started flag when setting the 'device' property.
We want to allow it when the source is NOT started yet and ignore it
when the source is running.
Original commit message from CVS:
Patch by: Fabrizio Gennari <fabrizio dot ge at tiscali dot it>
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_setup_pad),
(gst_asf_demux_process_chunk):
* gst/asfdemux/gstasfdemux.h:
Subtract first timestamp from timestamps, so that
stream starts from 0; makes live streams that don't
start at 0 work again (fixes#317310, #336097).
Original commit message from CVS:
Patch by: Christian Kirbach
* configure.ac:
Remove CXX tag from AS_LIBTOOL_TAGS, just like we did for
-good. Fixes build on some systems (#331838).
Original commit message from CVS:
* gst/realmedia/rmdemux.c: (gst_rmdemux_add_stream),
(gst_rmdemux_parse_cont):
Extract more tags and also post codec name tag on the
bus so this shows up in totem and nautilus.
Original commit message from CVS:
* gst/realmedia/rmdemux.c: (gst_rmdemux_add_stream),
(gst_rmdemux_fill_audio_packet), (gst_rmdemux_parse_packet):
Extra data usually goes into the caps as 'codec_data', not
as first buffer into the stream.
Need to byte swap AC3 content in realmedia files for some
reason (fixes#331588).
Original commit message from CVS:
* gst/realmedia/rmdemux.c: (gst_rmdemux_init),
(gst_rmdemux_validate_offset), (gst_rmdemux_loop),
(gst_rmdemux_parse_mdpr), (gst_rmdemux_parse_packet):
When operating in pull mode, post an error message on the
bus when all source pads are unlinked or some other fatal
error occured (#323023). Regrade some recurring debug messages
to LOG level. Convert c++-style comments into C-style ones.
Original commit message from CVS:
Patch by: Michal Benes <michal dot benes at xeris dot cz>
* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_init),
(gst_mpeg_demux_parse_packet), (gst_mpeg_demux_parse_pes),
(gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_reset):
* gst/mpegstream/gstmpegdemux.h:
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_parse_packhead):
Timestamps in mpeg stream are 32-bit numbers. Therefore, with a
clock_freq of 90kHz this timestamp overflows every ~13 hours. This
situation really happens when grabbing DVB streams. Current
mpegdemuxer can not handle this situation correctly and it
restarts counting gstreamer timestamps from zero.
Fixes#326598.
Original commit message from CVS:
* ext/a52dec/gsta52dec.c: (gst_a52dec_sink_event),
(gst_a52dec_chain_raw), (gst_a52dec_change_state):
* ext/a52dec/gsta52dec.h:
Fix#334550: failure to play raw AC3 files due to segment problems.
Original commit message from CVS:
* ext/mad/gstmad.c: (gst_mad_convert_sink), (gst_mad_update_info),
(gst_mad_sink_event), (gst_mad_change_state):
Include AUDIO_CODEC tag with tags posted if input is not
framed (#334258). Use _scale() util functions in more places.
Original commit message from CVS:
2006-03-12 Christophe Fergeau <teuf@gnome.org>
Reviewed by: Tim-Philipp Müller <tim at centricular dot net>
* ext/lame/gstlame.c: (gst_lame_class_init): mark the xing-header
property as BROKEN (see
http://bugzilla.gnome.org/show_bug.cgi?id=330317#c19 for an
explanation why it's broken).
Original commit message from CVS:
* ext/mad/gstid3tag.c: (tag_list_to_id3_tag_foreach):
Add support for writing the GST_TAG_ALBUM_VOLUME_NUMBER
tag (#333683, patch by: Alex Lancaster).
Original commit message from CVS:
* ext/amrnb/amrnbdec.c: (gst_amrnbdec_init),
(gst_amrnbdec_setcaps), (gst_amrnbdec_chain),
(gst_amrnbdec_state_change):
* ext/amrnb/amrnbenc.c: (gst_amrnbenc_init),
(gst_amrnbenc_setcaps), (gst_amrnbenc_chain),
(gst_amrnbenc_state_change):
* ext/amrnb/amrnbenc.h:
* ext/amrnb/amrnbparse.c: (gst_amrnbparse_init),
(gst_amrnbparse_query):
Further fancyfication.
Use _take to get writable data from the adapter.
Precalc packet duration.
Handle disconts.
Forward _push to upstream.
Post error messages when something goes wrong.
Remove old code in amrnbparse.
Don't ignore query results from upstream.
Original commit message from CVS:
* ext/amrnb/amrnbenc.c: (gst_amrnbenc_chain):
The AMR encoder writes into the audio buffers it processes, so
use gst_buffer_make_writable() on buffers we might (they go through
an adapter, so there can be copying going on later anyway) be
encoding.
Original commit message from CVS:
* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_pad_added),
(gst_mpeg_parse_handle_src_query):
Declare variables at the beginning of a block and make
gcc-2.9x happy (fixes#328957; patch by: Jens Granseuer).
Original commit message from CVS:
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_handle_data):
Read packet size, sequence and padsize in right order again
(fixes#332796; patch by: Fabrizio Gennari).
Original commit message from CVS:
* configure.ac:
Make the id3tag and mad checks check for both a header and the
appropriate library if the pkg-config is missing. (Closes#331842)
Split the id3tag and mad checks into 2 pieces. Sometime soon I might
do the same for the plugins themselves.
Original commit message from CVS:
Reviewed by: Tim-Philipp Müller <tim at centricular dot net>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_init),
(gst_mpeg2dec_reset), (gst_mpeg2dec_chain):
* ext/mpeg2dec/gstmpeg2dec.h:
Don't treat STATE_INVALID as fatal error; throw an error
only after five consecutive decoding errors. Makes decoding
mpeg streams more robust and fixes playback of joined clips
(#300682).
Original commit message from CVS:
* gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_plugin_init):
Push the rank up to SECONDARY+1 so that dvddemux is preferred over
mpegdemux for MPEG-2 video streams.
Original commit message from CVS:
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_sink_event):
In sink event handler, release object lock again
_before_ sending EOS event downstream (#313838).
Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (crop_copy_i420_buffer),
(crop_copy_i422_buffer), (crop_buffer):
When we need to crop the output buffer, make sure we
create a buffer of the right size and respect the implicit
striding used for I420 elsewhere in GStreamer (#331301).
Original commit message from CVS:
* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_process_stream):
Do not error out on non-recognized streams. Ignore them and allow
playback of the other streams.
