mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-27 21:40:49 +00:00
8ead62cfc2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2040 c046a42c-6fe2-441c-8c8c-71466251a162
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
#include "vl.h"
|
|
|
|
typedef struct {
|
|
QEMUFile *f;
|
|
int bytes;
|
|
} WAVState;
|
|
|
|
/* VICE code: Store number as little endian. */
|
|
static void le_store (uint8_t *buf, uint32_t val, int len)
|
|
{
|
|
int i;
|
|
for (i = 0; i < len; i++) {
|
|
buf[i] = (uint8_t) (val & 0xff);
|
|
val >>= 8;
|
|
}
|
|
}
|
|
|
|
static void wav_state_cb (void *opaque, int enabled)
|
|
{
|
|
WAVState *wav = opaque;
|
|
|
|
if (!enabled) {
|
|
uint8_t rlen[4];
|
|
uint8_t dlen[4];
|
|
uint32_t datalen = wav->bytes;
|
|
uint32_t rifflen = datalen + 36;
|
|
|
|
if (!wav->f) {
|
|
return;
|
|
}
|
|
|
|
le_store (rlen, rifflen, 4);
|
|
le_store (dlen, datalen, 4);
|
|
|
|
qemu_fseek (wav->f, 4, SEEK_SET);
|
|
qemu_put_buffer (wav->f, rlen, 4);
|
|
|
|
qemu_fseek (wav->f, 32, SEEK_CUR);
|
|
qemu_put_buffer (wav->f, dlen, 4);
|
|
}
|
|
else {
|
|
qemu_fseek (wav->f, 0, SEEK_END);
|
|
}
|
|
}
|
|
|
|
static void wav_capture_cb (void *opaque, void *buf, int size)
|
|
{
|
|
WAVState *wav = opaque;
|
|
|
|
qemu_put_buffer (wav->f, buf, size);
|
|
wav->bytes += size;
|
|
}
|
|
|
|
void wav_capture (const char *path, int freq, int bits16, int stereo)
|
|
{
|
|
WAVState *wav;
|
|
uint8_t hdr[] = {
|
|
0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56,
|
|
0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00,
|
|
0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04,
|
|
0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
|
|
};
|
|
audsettings_t as;
|
|
struct audio_capture_ops ops;
|
|
int shift;
|
|
|
|
stereo = !!stereo;
|
|
bits16 = !!bits16;
|
|
|
|
as.freq = freq;
|
|
as.nchannels = 1 << stereo;
|
|
as.fmt = bits16 ? AUD_FMT_S16 : AUD_FMT_U8;
|
|
|
|
ops.state = wav_state_cb;
|
|
ops.capture = wav_capture_cb;
|
|
|
|
wav = qemu_mallocz (sizeof (*wav));
|
|
if (!wav) {
|
|
AUD_log ("wav", "Could not allocate memory (%zu bytes)", sizeof (*wav));
|
|
return;
|
|
}
|
|
|
|
shift = bits16 + stereo;
|
|
hdr[34] = bits16 ? 0x10 : 0x08;
|
|
|
|
le_store (hdr + 22, as.nchannels, 2);
|
|
le_store (hdr + 24, freq, 4);
|
|
le_store (hdr + 28, freq << shift, 4);
|
|
le_store (hdr + 32, 1 << shift, 2);
|
|
|
|
wav->f = fopen (path, "wb");
|
|
if (!wav->f) {
|
|
AUD_log ("wav", "Failed to open wave file `%s'\nReason: %s\n",
|
|
path, strerror (errno));
|
|
qemu_free (wav);
|
|
return;
|
|
}
|
|
|
|
qemu_put_buffer (wav->f, hdr, sizeof (hdr));
|
|
AUD_add_capture (NULL, &as, 0, &ops, wav);
|
|
}
|