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WAV recording plugin: Fix distortion when feeding a full-range digital signal (most noticeable from S/PDIF), and make it obvious that S/PDIF recording ignores the defined sample rate.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13435 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-05-19 23:31:42 +00:00
parent 0671cee53a
commit e09b87a31f
1 changed files with 10 additions and 4 deletions
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14
apps/plugins/wavrecord.c
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@ -3524,9 +3524,7 @@ static int record_file(char *filename)
rb->lcd_puts(0, 0, filename);
rb->snprintf(buf, sizeof(buf), "%sHz 16bit %s",
samplerate_str[reccfg.samplerate], channel_str[reccfg.channels]);
rb->lcd_puts(0, 1, buf);
rb->lcd_update();
switch (reccfg.source)
{
case SRC_LINE:
@ -3545,10 +3543,14 @@ static int record_file(char *filename)
#ifdef HAVE_SPDIF_IN
case SRC_SPDIF:
rb->mas_codec_writereg(0, 0x01);
rb->snprintf(buf, sizeof(buf), "16bit %s",
channel_str[reccfg.channels]);
break;
#endif
}
rb->lcd_puts(0, 1, buf);
rb->lcd_update();
mas = 0x0060 /* no framing, little endian */
| ((reccfg.channels == 0) ? 0x10 : 0) /* mono/stereo */
| sampr[reccfg.samplerate][0];
@ -3569,6 +3571,10 @@ static int record_file(char *filename)
mas = 0x2125; /* recording, ADC input, validate */
rb->mas_writemem(MAS_BANK_D0, PCM_MAIN_IO_CONTROL, &mas, 1);
mas = 0x80001; /* avoid distortion (overflow on full-range input samples) */
rb->mas_writemem(MAS_BANK_D0, PCM_VOL_IN_LL, &mas, 1); /* LL */
rb->mas_writemem(MAS_BANK_D0, PCM_VOL_IN_RR, &mas, 1); /* RR */
hijack_interrupts(true);
rec_tick_enable(true);
recording = true;