Signed-off-by: James Almer <jamrial@gmail.com>

write_tmcd allows tmcd track to be created with any mode but in
mov_write_header, index for first tmcd track is only set for modes
MP4 or MOV, causing a crash if tmcd creation is attempted with other
modes.

ISMV lacks any sort of edit list support, as well as tfxd is
effectively the PTS of the fragment for most intents and purposes.

Thus, if b-frames are requested without negative CTS offsets you
end up with N frames' worth of delay (tfxd PTS plus the CTS offset
of the first sample). Negative CTS offsets enable the first sample
to have CTS=DTS, and thus a/v desync due to b-frame reorder delay
is avoided.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fix handling of timestamps which start  far away from 0
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

According to the PIFF specification[1] the base_data_offset field MUST be
omitteed. See section 5.2.17. Since the ISMV files created by ffmpeg state
that they are 'piff' compatible via 'ftyp' box, this needs to be corrected.

[1] http://www.iis.net/learn/media/smooth-streaming/protected-interoperable-file-formatSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This commit is based on libav's implementation and
makes sure to compare output timestamps together.
It also reduces the differences with avconv.

The changes to the test reference files are caused
by an additional packet at the end, the timestamp
of the frame encoded by this packet is always
strictly below the limit stated by the -t option.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>