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Fix rbspeex on big endian hosts.

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Big endian hosts need to byteswap the wave data when reading or writing to
disk. Should fix speex based voice- and talkfiles only containing garbage on
PPC machines.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25177 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dominik Riebeling 2010-03-14 18:20:18 +00:00
parent 3e9222de38
commit b6ed0b606f
2 changed files with 19 additions and 1 deletions
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9
tools/rbspeex/rbspeexdec.c
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@ -89,6 +89,15 @@ int main(int argc, char **argv)
speex_bits_set_bit_buffer(&bits, indata, insize);
while (speex_decode_int(st, &bits, out) == 0) {
/* if no error, write decoded audio */
#if defined(__BIG_ENDIAN__)
/* byteswap samples from host (big) endianess to file (little) before
* writing. */
unsigned int a = frame_size - lookahead;
while(a--) {
out[lookahead + a] = ((unsigned short)out[lookahead+a]<<8)&0xff00
| ((unsigned short)out[lookahead+a]>>8)&0x00ff;
}
#endif
fwrite(out + lookahead, sizeof(short), frame_size - lookahead, fout);
samples += frame_size - lookahead;
lookahead = 0; /* only skip samples at the start */