It will in general not be available. Use block_align if known or fall
back to av_get_audio_frame_duration().

Reported-By: Maxim Koitsov <maksbotan@gentoo.org>

Some muxer might or might not fit incomplete mp3 frames in
their packets.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Some muxer might or might not fit incomplete mp3 frames in
their packets.

Bug-Id: 899

CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This reverts commits 2edc7187, a2bb771a, 21c750f2, 8e7bea6d.

The WTV demuxer depends on large parts of the MPEG-TS demuxer internals
anyway and fails to build without it.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Needed for enum AVCodecID

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Do not error out if some subcomponents cannot be enabled.

Reported-By: RT|AO

Also fix #endif comments in the FFT init code.

The timebase change in the zmbv-8bit test is due to the fact that
previously the timebase string was evaluated as floating point, then
converted to a rational. After this commit, the timebase is passed
directly as is.