mirror of https://github.com/mpv-player/mpv
131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_CONTROL_H
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#define MPLAYER_CONTROL_H
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#include <sys/types.h>
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/*********************************************
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// Extended control used with arguments that operates on only one
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// channel at the time
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*/
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typedef struct af_control_ext_s{
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void* arg; // Argument
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int ch; // Chanel number
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}af_control_ext_t;
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/*********************************************
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// Control parameters
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*/
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/* The control system is divided into 3 levels
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mandatory calls - all filters must answer to all of these
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optional calls - are optional
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filter specific calls - applies only to some filters
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*/
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#define AF_CONTROL_MANDATORY 0x10000000
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#define AF_CONTROL_OPTIONAL 0x20000000
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#define AF_CONTROL_FILTER_SPECIFIC 0x40000000
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// MANDATORY CALLS
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/* Reinitialize filter. The optional argument contains the new
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configuration in form of a struct mp_audio struct. If the filter does not
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support the new format the struct should be changed and AF_FALSE
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should be returned. If the incoming and outgoing data streams are
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identical the filter can return AF_DETACH. This will remove the
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filter. */
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#define AF_CONTROL_REINIT 0x00000100 | AF_CONTROL_MANDATORY
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// OPTIONAL CALLS
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// Called just before destruction of a filter
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#define AF_CONTROL_PRE_DESTROY 0x00000200 | AF_CONTROL_OPTIONAL
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/* Commandline parameters. If there were any commandline parameters
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for this specific filter, they will be given as a char* in the
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argument */
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#define AF_CONTROL_COMMAND_LINE 0x00000300 | AF_CONTROL_OPTIONAL
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// FILTER SPECIFIC CALLS
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// Basic operations: These can be ored with any of the below calls
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// Set argument
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#define AF_CONTROL_SET 0x00000000
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// Get argument
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#define AF_CONTROL_GET 0x00000001
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// Resample
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// Set output rate in resample
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#define AF_CONTROL_RESAMPLE_RATE 0x00000100 | AF_CONTROL_FILTER_SPECIFIC
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// Format
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#define AF_CONTROL_FORMAT_FMT 0x00000400 | AF_CONTROL_FILTER_SPECIFIC
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// Channels
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// Set number of output channels in channels
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#define AF_CONTROL_CHANNELS 0x00000600 | AF_CONTROL_FILTER_SPECIFIC
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// Volume
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// Set volume level, arg is a float* with the volume for all the channels
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#define AF_CONTROL_VOLUME_LEVEL 0x00000D00 | AF_CONTROL_FILTER_SPECIFIC
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// Pan
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// Pan levels, arg is a control_ext with a float*
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#define AF_CONTROL_PAN_LEVEL 0x00001A00 | AF_CONTROL_FILTER_SPECIFIC
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// Number of outputs from pan, arg is int*
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#define AF_CONTROL_PAN_NOUT 0x00001B00 | AF_CONTROL_FILTER_SPECIFIC
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// Balance, arg is float*; range -1 (left) to 1 (right), 0 center
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#define AF_CONTROL_PAN_BALANCE 0x00001C00 | AF_CONTROL_FILTER_SPECIFIC
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// Delay length in ms, arg is a control_ext with a float*
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#define AF_CONTROL_DELAY_LEN 0x00001E00 | AF_CONTROL_FILTER_SPECIFIC
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// Subwoofer
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// Channel number which to insert the filtered data, arg in int*
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#define AF_CONTROL_SUB_CH 0x00001F00 | AF_CONTROL_FILTER_SPECIFIC
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// Cutoff frequency [Hz] for lowpass filter, arg is float*
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#define AF_CONTROL_SUB_FC 0x00002000 | AF_CONTROL_FILTER_SPECIFIC
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// Export
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#define AF_CONTROL_EXPORT_SZ 0x00003000 | AF_CONTROL_FILTER_SPECIFIC
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// Channel number which to inster the filtered data, arg in int*
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#define AF_CONTROL_CENTER_CH 0x00003200 | AF_CONTROL_FILTER_SPECIFIC
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#define AF_CONTROL_PLAYBACK_SPEED 0x00003500 | AF_CONTROL_FILTER_SPECIFIC
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#define AF_CONTROL_SCALETEMPO_AMOUNT 0x00003600 | AF_CONTROL_FILTER_SPECIFIC
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#endif /* MPLAYER_CONTROL_H */
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