1 files changed, 0 insertions, 97 deletions
diff --git a/libavformat/timefilter.h b/libavformat/timefilter.h
deleted file mode 100644
index aa7db533b4..0000000000
--- a/libavformat/timefilter.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Delay Locked Loop based time filter prototypes and declarations
- * Copyright (c) 2009 Samalyse
- * Copyright (c) 2009 Michael Niedermayer
- * Author: Olivier Guilyardi <olivier samalyse com>
- *         Michael Niedermayer <michaelni gmx at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVFORMAT_TIMEFILTER_H
-#define AVFORMAT_TIMEFILTER_H
-
-/**
- * Opaque type representing a time filter state
- *
- * The purpose of this filter is to provide a way to compute accurate time
- * stamps that can be compared to wall clock time, especially when dealing
- * with two clocks: the system clock and a hardware device clock, such as
- * a soundcard.
- */
-typedef struct TimeFilter TimeFilter;
-
-
-/**
- * Create a new Delay Locked Loop time filter
- *
- * feedback2_factor and feedback3_factor are the factors used for the
- * multiplications that are respectively performed in the second and third
- * feedback paths of the loop.
- *
- * Unless you know what you are doing, you should set these as follow:
- *
- * o = 2 * M_PI * bandwidth * period
- * feedback2_factor = sqrt(2 * o)
- * feedback3_factor = o * o
- *
- * Where bandwidth is up to you to choose. Smaller values will filter out more
- * of the jitter, but also take a longer time for the loop to settle. A good
- * starting point is something between 0.3 and 3 Hz.
- *
- * @param clock_period period of the hardware clock in seconds
- *        (for example 1.0/44100)
- *
- * For more details about these parameters and background concepts please see:
- * http://www.kokkinizita.net/papers/usingdll.pdf
- */
-TimeFilter * ff_timefilter_new(double clock_period, double feedback2_factor, double feedback3_factor);
-
-/**
- * Update the filter
- *
- * This function must be called in real time, at each process cycle.
- *
- * @param period the device cycle duration in clock_periods. For example, at
- * 44.1kHz and a buffer size of 512 frames, period = 512 when clock_period
- * was 1.0/44100, or 512/44100 if clock_period was 1.
- *
- * system_time, in seconds, should be the value of the system clock time,
- * at (or as close as possible to) the moment the device hardware interrupt
- * occured (or any other event the device clock raises at the beginning of a
- * cycle).
- *
- * @return the filtered time, in seconds
- */
-double ff_timefilter_update(TimeFilter *self, double system_time, double period);
-
-/**
- * Reset the filter
- *
- * This function should mainly be called in case of XRUN.
- *
- * Warning: after calling this, the filter is in an undetermined state until
- * the next call to ff_timefilter_update()
- */
-void ff_timefilter_reset(TimeFilter *);
-
-/**
- * Free all resources associated with the filter
- */
-void ff_timefilter_destroy(TimeFilter *);
-
-#endif /* AVFORMAT_TIMEFILTER_H */