lavc/dirac_arith: Only compile x86 asm if ARCH_X86 is set.

Fixes ticket #3544.
Also print GUIDs as shown in the Windows registry to ease debugging.
lavf/qcp: Print unknown GUID on error.
apng: move shared header from avformat to avcodec.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/apngdec: exit probing when skipping is not possible.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/ppc/lossless_audiodsp_altivec: POWER LE support for scalarproduct_and_madd_int16_altivec()

adds macro GET_T()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/vf_tinterlace: Favor using standard timebases for the output

Reported-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Inspired by discussion with Kieran Kunhya <kierank@obe.tv>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Revert "avfilter/vf_interlace: more accurate pts calculation"

This reverts commit df8248f66e362c3015d95ac86d1917dde8dc0a0c.

the revert produces a timebase and timestamps that are more close
to what users expect

Hoped-by: koda
Support raw dvdsub palette as stored on normal dvd's

This is how the palette is stored on dvd's. Currently
only xbmc passes the palette information to libavcodec
this way.
Check return value of avio_seek and avoid modifying state if it fails

The code still modifies state if the timestamp is not found. Not
sure exactly how to avoid that.
asf hacks
if av_read_packet returns AVERROR_IO, we are done. ffmpeg's codecs might or might not handle returning any completed demuxed packets correctly
added: Ticket #7187, TV Teletext support for DVB EBU Teletext streams
Don't accept mpegts PMT that isn't current
Don't reparse PMT unless it's version has changed
Read PID timestamps as well as PCR timestamps to find location in mpegts stream
Get stream durations using read_timestamp
changed: allow 4 second skew between streams in mov before attempting to seek
fixed: memleak in mpegts demuxer on some malformed (??) mpegts files with too large pes packets

at-visions sample file brokenStream.mpg
Speed up mpegts av_find_stream_info