Re: [mpg123-devel] how to create Draining buffer

[Thomas O. <tho...@or...>]

Am Tue, 15 Jun 2021 12:30:22 +0000 (UTC)
schrieb Didier Castellacci via mpg123-devel <mpg...@li...>: 

> Do you have any ideas for me to be able to develop the same thing?

Sure. Just look at what src/mpg123.c does;-)

/* Drain output device/buffer, but still give the option to interrupt things. */
static void controlled_drain(void)
{
        int framesize;
        size_t drain_block;

        play_prebuffer();

        if(intflag || !out123_buffered(ao))
                return;
        if(out123_getformat(ao, NULL, NULL, NULL, &framesize))
                return;
        drain_block = 1152*framesize;
        if(param.verbose)
                fprintf(stderr, "\n");
        do
        {
                out123_ndrain(ao, drain_block);
                if(param.verbose)
                        print_buf("Draining buffer: ", ao);
#ifdef HAVE_TERMIOS
                if(param.term_ctrl)
                        term_control(mh, ao);
#endif
        }
        while(!intflag && out123_buffered(ao));
        if(param.verbose)
                fprintf(stderr, "\n");
}


If you don't want to be able to interrupt things, you can just call
out123_drain(). The fluff around it is just to figure out a block for
out123_ndrain() and to react to key presses … and to give that progress
info.


Alrighty then,

Thomas