int attribute_align_arg mpg123_decoder(mpg123_handle *mh, const char* decoder)
{
enum optdec dt = dectype(decoder);
if(mh == NULL) return MPG123_ERR;
if(dt == nodec)
{
mh->err = MPG123_BAD_DECODER;
return MPG123_ERR;
}
if(dt == mh->cpu_opts.type) return MPG123_OK;
/* Now really change. */
/* frame_exit(mh);
frame_init(mh); */
debug("cpu opt setting");
if(frame_cpu_opt(mh, decoder) != 1)
{
mh->err = MPG123_BAD_DECODER;
frame_exit(mh);
return MPG123_ERR;
}
/* New buffers for decoder are created in frame_buffers() */
if((frame_outbuffer(mh) != 0))
{
mh->err = MPG123_NO_BUFFERS;
frame_exit(mh);
return MPG123_ERR;
}
/* Do _not_ call decode_update here! That is only allowed after a first MPEG frame has been met. */
mh->decoder_change = 1;
return MPG123_OK;
}
/* ...the full routine with optional initial parameters to override defaults. */
mpg123_handle attribute_align_arg *mpg123_parnew(mpg123_pars *mp, const char* decoder, int *error)
{
mpg123_handle *fr = NULL;
int err = MPG123_OK;
if(initialized) fr = (mpg123_handle*) malloc(sizeof(mpg123_handle));
else err = MPG123_NOT_INITIALIZED;
if(fr != NULL)
{
frame_init_par(fr, mp);
debug("cpu opt setting");
if(frame_cpu_opt(fr, decoder) != 1)
{
err = MPG123_BAD_DECODER;
frame_exit(fr);
free(fr);
fr = NULL;
}
}
if(fr != NULL)
{
fr->decoder_change = 1;
}
else if(err == MPG123_OK) err = MPG123_OUT_OF_MEM;
if(error != NULL) *error = err;
return fr;
}
