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Diffstat (limited to 'src/FilterInternal.hxx')
-rw-r--r-- | src/FilterInternal.hxx | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/src/FilterInternal.hxx b/src/FilterInternal.hxx deleted file mode 100644 index e2884e82f..000000000 --- a/src/FilterInternal.hxx +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Copyright (C) 2003-2013 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -/** \file - * - * Internal stuff for the filter core and filter plugins. - */ - -#ifndef MPD_FILTER_INTERNAL_HXX -#define MPD_FILTER_INTERNAL_HXX - -#include <stddef.h> - -struct AudioFormat; -class Error; - -class Filter { -public: - virtual ~Filter() {} - - /** - * Opens the filter, preparing it for FilterPCM(). - * - * @param filter the filter object - * @param audio_format the audio format of incoming data; the - * plugin may modify the object to enforce another input - * format - * @param error location to store the error occurring, or nullptr - * to ignore errors. - * @return the format of outgoing data or - * AudioFormat::Undefined() on error - */ - virtual AudioFormat Open(AudioFormat &af, Error &error) = 0; - - /** - * Closes the filter. After that, you may call Open() again. - */ - virtual void Close() = 0; - - /** - * Filters a block of PCM data. - * - * @param filter the filter object - * @param src the input buffer - * @param src_size the size of #src_buffer in bytes - * @param dest_size_r the size of the returned buffer - * @param error location to store the error occurring, or nullptr - * to ignore errors. - * @return the destination buffer on success (will be - * invalidated by filter_close() or filter_filter()), nullptr on - * error - */ - virtual const void *FilterPCM(const void *src, size_t src_size, - size_t *dest_size_r, - Error &error) = 0; -}; - -#endif |