Note: The ret variable was unused.

The value is lost because of avfilter_copy_buffer_ref_props().

Fix trac ticket #2217.

Without that test, ff_bufqueue_add silently discards the
oldest buffer, that leaves in[i].nb_samples inconsistent,
and causes later a segfault.

The total number of implemented filters is already over 128.

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

Adds allpass, bass, bandpass, bandreject, biquad,
equalizer, highpass, lowpass and treble filter.

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

CC:libav-stable@libav.org

CC:libav-stable@libav.org

Found-by: inferno@chromium.org
Reported-by: Dale Curtis <dalecurtis@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Add a field to the AVBufferSinkParams for a list of accepted
channel counts.
Change the default value for the lists in AVBufferSinkParams
to NULL, to let lavfi fill them with something useful.
The fail_enomem path is unneeded because filters are uninited
on failure.

Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This is wrong function to check for input parameters.
Function is not needed because query_formats() already
sets supported sample rates.

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

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

outpicref is not always in synch with showwaves->outpicref, which is
changed as a side effect of the call to functions.

Fix regression introduced in 5f634480d1c4ed7711a15d1be07e49177cf351c1,
+10l to me.

Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Move the first use of `link' after the null pointer check.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Correct the time interval between logged data rows to the expected
value of 100 milliseconds by naming a new loop counter variable
to be distinct from loop counters for inner loops that
inadvertently change the outer loop operation.

This suggested patch is 1 of 3 for Ticket #2144 "libavfilter ebur128
loudness inaccuracy, irregular time interval, LFE interference".
This suggested patch supersedes the contribution of January 15, 2013
in the thread “[PATCH] lavfi: EBU R.128 irreg time, ch weights, skip
LFE” which combined multiple fixes in one patch.

Reviewed-by: Clément Bœsch <ubitux@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Remove alpha_pix_fmts[].

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

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

Manually load registers to avoid using 8 registers on x86_32 with
compilers that do not align the stack (e.g. MSVC).

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

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

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

If nb_samples divide sample_rate and if nb_samples allow it, aevalsrc
should generate the exact amount of samples according to duration.

Example:
aevalsrc=0::n=480:s=48000:d=5.21 should generate 250080 samples.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

EAGAIN is used internally in the code; it currently does not make
sense as a return code from the next filter.

Should fix CID966655.

Fix trac ticket #2128.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

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

Unlike the original ff_start_frame code, the incoming reference
may be freed before that point.

Fix CID966654.

Also re-enable the FATE test.

Fixes CID966642

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

This makes the code faster.

This was supposed to be removed in 565e4993, but it was delayed due to
the port of the remaining filters. These buffer ref pointers are not
used anymore, thus dropped.

This might fix fate failures.

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

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

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