From f3cfe839830f18c54218654dc36851b351990d7d Mon Sep 17 00:00:00 2001 From: alex Date: Mon, 21 Feb 2005 16:41:15 +0000 Subject: move the format related stuff to format.c git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14749 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libaf/format.c | 209 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 209 insertions(+) create mode 100644 libaf/format.c (limited to 'libaf/format.c') diff --git a/libaf/format.c b/libaf/format.c new file mode 100644 index 0000000000..5669ac81f4 --- /dev/null +++ b/libaf/format.c @@ -0,0 +1,209 @@ +#include +#include +#include +#include +#include +#include + +#include "af.h" + +// Convert from string to format +int af_str2fmt(char* str) +{ + int format=0; + // Scan for endianess + if(strstr(str,"be") || strstr(str,"BE")) + format |= AF_FORMAT_BE; + else if(strstr(str,"le") || strstr(str,"LE")) + format |= AF_FORMAT_LE; + else + format |= AF_FORMAT_NE; + + // Scan for special formats + if(strstr(str,"mulaw") || strstr(str,"MULAW")){ + format |= AF_FORMAT_MU_LAW; return format; + } + if(strstr(str,"alaw") || strstr(str,"ALAW")){ + format |= AF_FORMAT_A_LAW; return format; + } + if(strstr(str,"ac3") || strstr(str,"AC3")){ + format |= AF_FORMAT_AC3; return format; + } + if(strstr(str,"mpeg2") || strstr(str,"MPEG2")){ + format |= AF_FORMAT_MPEG2; return format; + } + if(strstr(str,"imaadpcm") || strstr(str,"IMAADPCM")){ + format |= AF_FORMAT_IMA_ADPCM; return format; + } + + // Scan for int/float + if(strstr(str,"float") || strstr(str,"FLOAT")){ + format |= AF_FORMAT_F; return format; + } + else + format |= AF_FORMAT_I; + + // Scan for signed/unsigned + if(strstr(str,"unsigned") || strstr(str,"UNSIGNED")) + format |= AF_FORMAT_US; + else + format |= AF_FORMAT_SI; + + return format; +} + +inline int af_fmt2bits(int format) +{ + return (format & AF_FORMAT_BITS_MASK)+8; +// return (((format & AF_FORMAT_BITS_MASK)>>3)+1) * 8; +#if 0 + switch(format & AF_FORMAT_BITS_MASK) + { + case AF_FORMAT_8BIT: return 8; + case AF_FORMAT_16BIT: return 16; + case AF_FORMAT_24BIT: return 24; + case AF_FORMAT_32BIT: return 32; + case AF_FORMAT_48BIT: return 48; + } +#endif + return -1; +} + +inline int af_bits2fmt(int bits) +{ + return (bits/8 - 1) << 3; +} + +/* Convert format to str input str is a buffer for the + converted string, size is the size of the buffer */ +char* af_fmt2str(int format, char* str, int size) +{ + int i=0; + + if (size < 1) + return NULL; + size--; // reserve one for terminating 0 + + // Endianess + if(AF_FORMAT_LE == (format & AF_FORMAT_END_MASK)) + i+=snprintf(str,size-i,"little-endian "); + else + i+=snprintf(str,size-i,"big-endian "); + + if(format & AF_FORMAT_SPECIAL_MASK){ + switch(format & AF_FORMAT_SPECIAL_MASK){ + case(AF_FORMAT_MU_LAW): + i+=snprintf(&str[i],size-i,"mu-law "); break; + case(AF_FORMAT_A_LAW): + i+=snprintf(&str[i],size-i,"A-law "); break; + case(AF_FORMAT_MPEG2): + i+=snprintf(&str[i],size-i,"MPEG-2 "); break; + case(AF_FORMAT_AC3): + i+=snprintf(&str[i],size-i,"AC3 "); break; + case(AF_FORMAT_IMA_ADPCM): + i+=snprintf(&str[i],size-i,"IMA-ADPCM "); break; + default: + printf("Unknown special\n"); + } + } + else{ + // Bits + i+=snprintf(&str[i],size-i,"%d-bit ", af_fmt2bits(format)); + + // Point + if(AF_FORMAT_F == (format & AF_FORMAT_POINT_MASK)) + i+=snprintf(&str[i],size-i,"float "); + else{ + // Sign + if(AF_FORMAT_US == (format & AF_FORMAT_SIGN_MASK)) + i+=snprintf(&str[i],size-i,"unsigned "); + else + i+=snprintf(&str[i],size-i,"signed "); + + i+=snprintf(&str[i],size-i,"int "); + } + } + // remove trailing space + if (i > 0 && str[i - 1] == ' ') + i--; + str[i] = 0; // make sure it is 0 terminated. + return str; +} + +char *af_fmt2str_short(int format) +{ + switch(format) + { + // special + case AF_FORMAT_MU_LAW: return "mulaw"; + case AF_FORMAT_A_LAW: return "alaw"; + case AF_FORMAT_MPEG2: return "mpeg2"; + case AF_FORMAT_AC3: return "ac3"; + case AF_FORMAT_IMA_ADPCM: return "imaadpcm"; + // ordinary + case AF_FORMAT_U8: return "u8"; + case AF_FORMAT_S8: return "s8"; + case AF_FORMAT_U16_LE: return "u16le"; + case AF_FORMAT_U16_BE: return "u16be"; + case AF_FORMAT_S16_LE: return "s16le"; + case AF_FORMAT_S16_BE: return "s16be"; + case AF_FORMAT_U24_LE: return "u24le"; + case AF_FORMAT_U24_BE: return "u24be"; + case AF_FORMAT_S24_LE: return "s24le"; + case AF_FORMAT_S24_BE: return "s24be"; + case AF_FORMAT_U32_LE: return "u32le"; + case AF_FORMAT_U32_BE: return "u32be"; + case AF_FORMAT_S32_LE: return "s32le"; + case AF_FORMAT_S32_BE: return "s32be"; + case AF_FORMAT_FLOAT_LE: return "floatle"; + case AF_FORMAT_FLOAT_BE: return "floatbe"; + } + return "??"; +} + +int af_str2fmt_short(char* str) +{ + int i; + static struct { + const char *name; + const int format; + } table[] = { + { "mulaw", AF_FORMAT_MU_LAW }, + { "alaw", AF_FORMAT_A_LAW }, + { "mpeg2", AF_FORMAT_MPEG2 }, + { "ac3", AF_FORMAT_AC3 }, + { "imaadpcm", AF_FORMAT_IMA_ADPCM }, + + { "u8", AF_FORMAT_U8 }, + { "s8", AF_FORMAT_S8 }, + { "u16le", AF_FORMAT_U16_LE }, + { "u16be", AF_FORMAT_U16_BE }, + { "u16ne", AF_FORMAT_U16_NE }, + { "s16le", AF_FORMAT_S16_LE }, + { "s16be", AF_FORMAT_S16_BE }, + { "s16ne", AF_FORMAT_S16_NE }, + { "u24le", AF_FORMAT_U24_LE }, + { "u24be", AF_FORMAT_U24_BE }, + { "u24ne", AF_FORMAT_U24_NE }, + { "s24le", AF_FORMAT_S24_LE }, + { "s24be", AF_FORMAT_S24_BE }, + { "s24ne", AF_FORMAT_S24_NE }, + { "u32le", AF_FORMAT_U32_LE }, + { "u32be", AF_FORMAT_U32_BE }, + { "u32ne", AF_FORMAT_U32_NE }, + { "s32le", AF_FORMAT_S32_LE }, + { "s32be", AF_FORMAT_S32_BE }, + { "s32ne", AF_FORMAT_S32_NE }, + { "floatle", AF_FORMAT_FLOAT_LE }, + { "floatbe", AF_FORMAT_FLOAT_BE }, + { "floatne", AF_FORMAT_FLOAT_NE }, + + { NULL, 0 } + }; + + for (i = 0; table[i].name; i++) + if (!strcasecmp(str, table[i].name)) + return table[i].format; + + return -1; +} -- cgit v1.2.3