X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Faudioconvert.h;h=300a67cd3d5ad336914e81108be4eb0e1d06b91f;hb=65b0f7ce08170dd2ca2998d42e0bd9f1cb82e76c;hp=76eb2783b52d46a5070d72253f605ac9e6b861a9;hpb=0e097616865ea8a1fa8e63a451a4921336660283;p=ffmpeg diff --git a/libavutil/audioconvert.h b/libavutil/audioconvert.h index 76eb2783b52..300a67cd3d5 100644 --- a/libavutil/audioconvert.h +++ b/libavutil/audioconvert.h @@ -1,208 +1,6 @@ -/* - * Copyright (c) 2006 Michael Niedermayer - * Copyright (c) 2008 Peter Ross - * - * This file is part of FFmpeg. - * - * FFmpeg 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. - * - * FFmpeg 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef AVUTIL_AUDIOCONVERT_H -#define AVUTIL_AUDIOCONVERT_H +#include "version.h" -#include - -/** - * @file - * audio conversion routines - */ - -/** - * @addtogroup lavu_audio - * @{ - */ - -/** - * @defgroup channel_masks Audio channel masks - * @{ - */ -#define AV_CH_FRONT_LEFT 0x00000001 -#define AV_CH_FRONT_RIGHT 0x00000002 -#define AV_CH_FRONT_CENTER 0x00000004 -#define AV_CH_LOW_FREQUENCY 0x00000008 -#define AV_CH_BACK_LEFT 0x00000010 -#define AV_CH_BACK_RIGHT 0x00000020 -#define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040 -#define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080 -#define AV_CH_BACK_CENTER 0x00000100 -#define AV_CH_SIDE_LEFT 0x00000200 -#define AV_CH_SIDE_RIGHT 0x00000400 -#define AV_CH_TOP_CENTER 0x00000800 -#define AV_CH_TOP_FRONT_LEFT 0x00001000 -#define AV_CH_TOP_FRONT_CENTER 0x00002000 -#define AV_CH_TOP_FRONT_RIGHT 0x00004000 -#define AV_CH_TOP_BACK_LEFT 0x00008000 -#define AV_CH_TOP_BACK_CENTER 0x00010000 -#define AV_CH_TOP_BACK_RIGHT 0x00020000 -#define AV_CH_STEREO_LEFT 0x20000000 ///< Stereo downmix. -#define AV_CH_STEREO_RIGHT 0x40000000 ///< See AV_CH_STEREO_LEFT. -#define AV_CH_WIDE_LEFT 0x0000000080000000ULL -#define AV_CH_WIDE_RIGHT 0x0000000100000000ULL -#define AV_CH_SURROUND_DIRECT_LEFT 0x0000000200000000ULL -#define AV_CH_SURROUND_DIRECT_RIGHT 0x0000000400000000ULL -#define AV_CH_LOW_FREQUENCY_2 0x0000000800000000ULL - -/** Channel mask value used for AVCodecContext.request_channel_layout - to indicate that the user requests the channel order of the decoder output - to be the native codec channel order. */ -#define AV_CH_LAYOUT_NATIVE 0x8000000000000000ULL - -/** - * @} - * @defgroup channel_mask_c Audio channel convenience macros - * @{ - * */ -#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER) -#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT) -#define AV_CH_LAYOUT_2POINT1 (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY) -#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER) -#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER) -#define AV_CH_LAYOUT_3POINT1 (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY) -#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER) -#define AV_CH_LAYOUT_4POINT1 (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY) -#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) -#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) -#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) -#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY) -#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) -#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY) -#define AV_CH_LAYOUT_6POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER) -#define AV_CH_LAYOUT_6POINT0_FRONT (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) -#define AV_CH_LAYOUT_HEXAGONAL (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER) -#define AV_CH_LAYOUT_6POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER) -#define AV_CH_LAYOUT_6POINT1_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER) -#define AV_CH_LAYOUT_6POINT1_FRONT (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY) -#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) -#define AV_CH_LAYOUT_7POINT0_FRONT (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) -#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) -#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) -#define AV_CH_LAYOUT_7POINT1_WIDE_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) -#define AV_CH_LAYOUT_OCTAGONAL (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT) -#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT) - -enum AVMatrixEncoding { - AV_MATRIX_ENCODING_NONE, - AV_MATRIX_ENCODING_DOLBY, - AV_MATRIX_ENCODING_DPLII, - AV_MATRIX_ENCODING_NB -}; - -/** - * @} - */ - -/** - * Return a channel layout id that matches name, or 0 if no match is found. - * - * name can be one or several of the following notations, - * separated by '+' or '|': - * - the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0, - * 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix); - * - the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC, - * SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR); - * - a number of channels, in decimal, optionally followed by 'c', yielding - * the default channel layout for that number of channels (@see - * av_get_default_channel_layout); - * - a channel layout mask, in hexadecimal starting with "0x" (see the - * AV_CH_* macros). - * - * Example: "stereo+FC" = "2+FC" = "2c+1c" = "0x7" - */ -uint64_t av_get_channel_layout(const char *name); - -/** - * Return a description of a channel layout. - * If nb_channels is <= 0, it is guessed from the channel_layout. - * - * @param buf put here the string containing the channel layout - * @param buf_size size in bytes of the buffer - */ -void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout); - -struct AVBPrint; -/** - * Append a description of a channel layout to a bprint buffer. - */ -void av_bprint_channel_layout(struct AVBPrint *bp, int nb_channels, uint64_t channel_layout); - -/** - * Return the number of channels in the channel layout. - */ -int av_get_channel_layout_nb_channels(uint64_t channel_layout); - -/** - * Return default channel layout for a given number of channels. - */ -int64_t av_get_default_channel_layout(int nb_channels); - -/** - * Get the index of a channel in channel_layout. - * - * @param channel a channel layout describing exactly one channel which must be - * present in channel_layout. - * - * @return index of channel in channel_layout on success, a negative AVERROR - * on error. - */ -int av_get_channel_layout_channel_index(uint64_t channel_layout, - uint64_t channel); - -/** - * Get the channel with the given index in channel_layout. - */ -uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index); - -/** - * Get the name of a given channel. - * - * @return channel name on success, NULL on error. - */ -const char *av_get_channel_name(uint64_t channel); - -/** - * Get the description of a given channel. - * - * @param channel a channel layout with a single channel - * @return channel description on success, NULL on error - */ -const char *av_get_channel_description(uint64_t channel); - -/** - * Get the value and name of a standard channel layout. - * - * @param[in] index index in an internal list, starting at 0 - * @param[out] layout channel layout mask - * @param[out] name name of the layout - * @return 0 if the layout exists, - * <0 if index is beyond the limits - */ -int av_get_standard_channel_layout(unsigned index, uint64_t *layout, - const char **name); - -/** - * @} - */ - -#endif /* AVUTIL_AUDIOCONVERT_H */ +#if FF_API_AUDIOCONVERT +#include "channel_layout.h" +#endif