/* * The sample format system used lin libaf is based on bitmasks. * The format definition only refers to the storage format, * not the resolution. * * This file is part of MPlayer. * * MPlayer 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. * * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef MPLAYER_AF_FORMAT_H #define MPLAYER_AF_FORMAT_H #include #include #include "bstr/bstr.h" #if BYTE_ORDER == BIG_ENDIAN #define AF_SELECT_LE_BE(LE, BE) BE #else #define AF_SELECT_LE_BE(LE, BE) LE #endif // Endianness #define AF_FORMAT_BE (0<<0) // Big Endian #define AF_FORMAT_LE (1<<0) // Little Endian #define AF_FORMAT_END_MASK (1<<0) #define AF_FORMAT_NE AF_SELECT_LE_BE(AF_FORMAT_LE, AF_FORMAT_BE) // Signed/unsigned #define AF_FORMAT_SI (0<<1) // Signed #define AF_FORMAT_US (1<<1) // Unsigned #define AF_FORMAT_SIGN_MASK (1<<1) // Bits used // Some code assumes they're sorted by size. #define AF_FORMAT_8BIT (0<<3) #define AF_FORMAT_16BIT (1<<3) #define AF_FORMAT_24BIT (2<<3) #define AF_FORMAT_32BIT (3<<3) #define AF_FORMAT_64BIT (4<<3) #define AF_FORMAT_BITS_MASK (7<<3) // Special flags refering to non pcm data (note: 1<<6, 2<<6, 5<<6 unused) #define AF_FORMAT_S_MPEG2 (3<<6) // MPEG(2) audio #define AF_FORMAT_S_AC3 (4<<6) // Dolby Digital AC3 #define AF_FORMAT_S_IEC61937 (6<<6) #define AF_FORMAT_SPECIAL_MASK (7<<6) // Fixed or floating point #define AF_FORMAT_I (1<<9) // Int #define AF_FORMAT_F (2<<9) // Foating point #define AF_FORMAT_POINT_MASK (3<<9) // Interleaving (planar formats have data for each channel in separate planes) #define AF_FORMAT_INTERLEAVED (0<<11) // must be 0 #define AF_FORMAT_PLANAR (1<<11) #define AF_FORMAT_INTERLEAVING_MASK (1<<11) #define AF_FORMAT_MASK ((1<<12)-1) #define AF_INTP (AF_FORMAT_I|AF_FORMAT_PLANAR) #define AF_FLTP (AF_FORMAT_F|AF_FORMAT_PLANAR) // actual sample formats enum af_format { AF_FORMAT_UNKNOWN = 0, AF_FORMAT_U8 = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_8BIT|AF_FORMAT_NE), AF_FORMAT_S8 = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_8BIT|AF_FORMAT_NE), AF_FORMAT_U16_LE = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT|AF_FORMAT_LE), AF_FORMAT_U16_BE = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT|AF_FORMAT_BE), AF_FORMAT_S16_LE = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_LE), AF_FORMAT_S16_BE = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_BE), AF_FORMAT_U24_LE = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT|AF_FORMAT_LE), AF_FORMAT_U24_BE = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT|AF_FORMAT_BE), AF_FORMAT_S24_LE = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT|AF_FORMAT_LE), AF_FORMAT_S24_BE = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT|AF_FORMAT_BE), AF_FORMAT_U32_LE = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT|AF_FORMAT_LE), AF_FORMAT_U32_BE = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT|AF_FORMAT_BE), AF_FORMAT_S32_LE = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_LE), AF_FORMAT_S32_BE = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_BE), AF_FORMAT_FLOAT_LE = (AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_LE), AF_FORMAT_FLOAT_BE = (AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_BE), AF_FORMAT_DOUBLE_LE = (AF_FORMAT_F|AF_FORMAT_64BIT|AF_FORMAT_LE), AF_FORMAT_DOUBLE_BE = (AF_FORMAT_F|AF_FORMAT_64BIT|AF_FORMAT_BE), AF_FORMAT_AC3_LE = (AF_FORMAT_S_AC3|AF_FORMAT_16BIT|AF_FORMAT_LE), AF_FORMAT_AC3_BE = (AF_FORMAT_S_AC3|AF_FORMAT_16BIT|AF_FORMAT_BE), AF_FORMAT_IEC61937_LE = (AF_FORMAT_S_IEC61937|AF_FORMAT_16BIT|AF_FORMAT_LE), AF_FORMAT_IEC61937_BE = (AF_FORMAT_S_IEC61937|AF_FORMAT_16BIT|AF_FORMAT_BE), AF_FORMAT_MPEG2 = (AF_FORMAT_S_MPEG2), // Planar variants AF_FORMAT_U8P = (AF_INTP|AF_FORMAT_US|AF_FORMAT_8BIT|AF_FORMAT_NE), AF_FORMAT_S16P = (AF_INTP|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_NE), AF_FORMAT_S32P = (AF_INTP|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_NE), AF_FORMAT_FLOATP = (AF_FLTP|AF_FORMAT_32BIT|AF_FORMAT_NE), AF_FORMAT_DOUBLEP = (AF_FLTP|AF_FORMAT_64BIT|AF_FORMAT_NE), // Native endian variants AF_FORMAT_U16 = AF_SELECT_LE_BE(AF_FORMAT_U16_LE, AF_FORMAT_U16_BE), AF_FORMAT_S16 = AF_SELECT_LE_BE(AF_FORMAT_S16_LE, AF_FORMAT_S16_BE), AF_FORMAT_U24 = AF_SELECT_LE_BE(AF_FORMAT_U24_LE, AF_FORMAT_U24_BE), AF_FORMAT_S24 = AF_SELECT_LE_BE(AF_FORMAT_S24_LE, AF_FORMAT_S24_BE), AF_FORMAT_U32 = AF_SELECT_LE_BE(AF_FORMAT_U32_LE, AF_FORMAT_U32_BE), AF_FORMAT_S32 = AF_SELECT_LE_BE(AF_FORMAT_S32_LE, AF_FORMAT_S32_BE), AF_FORMAT_FLOAT = AF_SELECT_LE_BE(AF_FORMAT_FLOAT_LE, AF_FORMAT_FLOAT_BE), AF_FORMAT_DOUBLE = AF_SELECT_LE_BE(AF_FORMAT_DOUBLE_LE, AF_FORMAT_DOUBLE_BE), AF_FORMAT_AC3 = AF_SELECT_LE_BE(AF_FORMAT_AC3_LE, AF_FORMAT_AC3_BE), AF_FORMAT_IEC61937 = AF_SELECT_LE_BE(AF_FORMAT_IEC61937_LE, AF_FORMAT_IEC61937_BE), }; #define AF_FORMAT_IS_AC3(fmt) \ (((fmt) & AF_FORMAT_SPECIAL_MASK) == AF_FORMAT_S_AC3) #define AF_FORMAT_IS_IEC61937(fmt) \ (AF_FORMAT_IS_AC3(fmt) || \ ((fmt) & AF_FORMAT_SPECIAL_MASK) == AF_FORMAT_S_IEC61937) #define AF_FORMAT_IS_SPECIAL(fmt) \ ((fmt & AF_FORMAT_SPECIAL_MASK) != 0) struct af_fmt_entry { const char *name; int format; }; extern const struct af_fmt_entry af_fmtstr_table[]; int af_str2fmt_short(bstr str); const char *af_fmt_to_str(int format); int af_fmt2bps(int format); int af_fmt2bits(int format); int af_fmt_change_bits(int format, int bits); int af_fmt_to_planar(int format); int af_fmt_from_planar(int format); bool af_fmt_is_planar(int format); // Amount of bytes that contain audio of the given duration, aligned to frames. int af_fmt_seconds_to_bytes(int format, float seconds, int channels, int samplerate); bool af_fmt_is_valid(int format); void af_fill_silence(void *dst, size_t bytes, int format); int af_format_conversion_score(int dst_format, int src_format); #endif /* MPLAYER_AF_FORMAT_H */