[Python-Dev] linuxaudiodev module

[Ka-Ping Yee]

On Fri, 6 Oct 2000, Jeremy Hylton wrote:
> 
> Have you tried the new code, BTW?  Does the test work on your machine?

Works okay (i updated after Guido's last edit).  Sounds fine to me.

But it bugs me that some of the descriptions say "audio" and others say
"format".  This seems arbitrary -- is there a reason?

Excerpt of Modules/linuxaudiodev.c:
    {  8, »­­­­­AFMT_MU_LAW, "Logarithmic mu-law audio" },
    {  8, »­­­­­AFMT_A_LAW,  "Logarithmic A-law audio" },
    {  8,»­­­­­­AFMT_U8,     "Standard unsigned 8-bit audio" },
    {  8, »­­­­­AFMT_S8,     "Standard signed 8-bit audio" },
    { 16, »­­­­­AFMT_U16_BE, "Big-endian 16-bit unsigned format" },
    { 16, »­­­­­AFMT_U16_LE, "Little-endian 16-bit unsigned format" },
    { 16, »­­­­­AFMT_S16_BE, "Big-endian 16-bit signed format" },
    { 16, »­­­­­AFMT_S16_LE, "Little-endian 16-bit signed format" },

If you don't mind, i'd prefer something like:
    {  8, »­­­­­AFMT_MU_LAW, "logarithmic mu-law 8-bit audio" },
    {  8, »­­­­­AFMT_A_LAW,  "logarithmic A-law 8-bit audio" },
    {  8,»­­­­­­AFMT_U8,     "linear unsigned 8-bit audio" },
    {  8, »­­­­­AFMT_S8,     "linear signed 8-bit audio" },
    { 16, »­­­­­AFMT_U16_BE, "linear unsigned 16-bit big-endian audio" },
    { 16, »­­­­­AFMT_U16_LE, "linear unsigned 16-bit little-endian audio" },
    { 16, »­­­­­AFMT_S16_BE, "linear signed 16-bit big-endian audio" },
    { 16, »­­­­­AFMT_S16_LE, "linear signed 16-bit little-endian audio" },

The above conforms to:

    <format> <width> "audio"

    where <format> ::= "logarithmic" ("mu-law" | "A-law") |
                       "linear" ("unsigned" | "signed")

          <width> ::= "8-bit" | "16-bit" ("big-endian" | "little-endian")


-- ?!ng

"Simple, yet complex."
    -- Lenore Snell