SoX native intermediate format: Difference between revisions
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[[SoX]] has LGPL muxer and demuxer. | [[SoX]] has LGPL muxer and demuxer. | ||
== File format == | |||
Depending on the magic number, all fields are written in big or little endian, including the double-precision floating-point sample rate. Audio is always stored in 32-bit linear PCM, with endianness also determined by the file's magic number. | |||
Bytes Type Description | |||
0- 3 string Magic number (".SoX" for LE, "XoS." for BE) | |||
4- 7 int32 Size of headers in bytes | |||
8-15 int64 Number of samples | |||
16-23 double Sample rate | |||
24-27 int32 Number of channels | |||
28-31 int32 Size of comment in bytes | |||
32-.. string Comment | |||
..-.. Padding | |||
..-end int32 Audio samples | |||
Number of channels may be between 1 and 65535, inclusive. | |||
Total header size must be a multiple of 8 bytes; it equals size of the fixed header (without the magic number - 28 bytes) plus size of comment plus size of padding (which is reserved for possible future use). | |||
[[Category:Container Formats]] | [[Category:Container Formats]] | ||
[[Category:Formats missing in FFmpeg]] | [[Category:Formats missing in FFmpeg]] |
Revision as of 13:41, 27 May 2009
- Extension: sox
Uncompressed PCM format used in SoX.
SoX has LGPL muxer and demuxer.
File format
Depending on the magic number, all fields are written in big or little endian, including the double-precision floating-point sample rate. Audio is always stored in 32-bit linear PCM, with endianness also determined by the file's magic number.
Bytes Type Description 0- 3 string Magic number (".SoX" for LE, "XoS." for BE) 4- 7 int32 Size of headers in bytes 8-15 int64 Number of samples 16-23 double Sample rate 24-27 int32 Number of channels 28-31 int32 Size of comment in bytes 32-.. string Comment ..-.. Padding ..-end int32 Audio samples
Number of channels may be between 1 and 65535, inclusive.
Total header size must be a multiple of 8 bytes; it equals size of the fixed header (without the magic number - 28 bytes) plus size of comment plus size of padding (which is reserved for possible future use).