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authorbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2006-07-16 18:57:03 +0000
committerbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2006-07-16 18:57:03 +0000
commitec36b695b0bd054e673854fd1f02fa83e4bebea2 (patch)
tree413cfd368ce3c08e7866d48ca406ec3fc6638913 /audio/wavcapture.c
parent6330126439a1f08d2a586bb1357622d944a44ec4 (diff)
downloadqemu-ec36b695b0bd054e673854fd1f02fa83e4bebea2.zip
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audio capture to wab files (malc)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2059 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'audio/wavcapture.c')
-rw-r--r--audio/wavcapture.c122
1 files changed, 91 insertions, 31 deletions
diff --git a/audio/wavcapture.c b/audio/wavcapture.c
index 7458a5e..748b580 100644
--- a/audio/wavcapture.c
+++ b/audio/wavcapture.c
@@ -3,6 +3,11 @@
typedef struct {
QEMUFile *f;
int bytes;
+ char *path;
+ int freq;
+ int bits;
+ int nchannels;
+ CaptureVoiceOut *cap;
} WAVState;
/* VICE code: Store number as little endian. */
@@ -15,35 +20,39 @@ static void le_store (uint8_t *buf, uint32_t val, int len)
}
}
-static void wav_state_cb (void *opaque, int enabled)
+static void wav_notify (void *opaque, audcnotification_e cmd)
{
- WAVState *wav = opaque;
+ (void) opaque;
+ (void) cmd;
+}
- if (!enabled) {
- uint8_t rlen[4];
- uint8_t dlen[4];
- uint32_t datalen = wav->bytes;
- uint32_t rifflen = datalen + 36;
+static void wav_destroy (void *opaque)
+{
+ WAVState *wav = opaque;
+ uint8_t rlen[4];
+ uint8_t dlen[4];
+ uint32_t datalen = wav->bytes;
+ uint32_t rifflen = datalen + 36;
- if (!wav->f) {
- return;
- }
+ if (!wav->f) {
+ return;
+ }
- le_store (rlen, rifflen, 4);
- le_store (dlen, datalen, 4);
+ 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, 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);
+ qemu_fseek (wav->f, 32, SEEK_CUR);
+ qemu_put_buffer (wav->f, dlen, 4);
+ fclose (wav->f);
+ if (wav->path) {
+ qemu_free (wav->path);
}
}
-static void wav_capture_cb (void *opaque, void *buf, int size)
+static void wav_capture (void *opaque, void *buf, int size)
{
WAVState *wav = opaque;
@@ -51,7 +60,30 @@ static void wav_capture_cb (void *opaque, void *buf, int size)
wav->bytes += size;
}
-void wav_capture (const char *path, int freq, int bits16, int stereo)
+static void wav_capture_destroy (void *opaque)
+{
+ WAVState *wav = opaque;
+
+ AUD_del_capture (wav->cap, wav);
+}
+
+static void wav_capture_info (void *opaque)
+{
+ WAVState *wav = opaque;
+ char *path = wav->path;
+
+ term_printf ("Capturing audio(%d,%d,%d) to %s: %d bytes\n",
+ wav->freq, wav->bits, wav->nchannels,
+ path ? path : "<not available>", wav->bytes);
+}
+
+static struct capture_ops wav_capture_ops = {
+ .destroy = wav_capture_destroy,
+ .info = wav_capture_info
+};
+
+int wav_start_capture (CaptureState *s, const char *path, int freq,
+ int bits, int nchannels)
{
WAVState *wav;
uint8_t hdr[] = {
@@ -62,23 +94,35 @@ void wav_capture (const char *path, int freq, int bits16, int stereo)
};
audsettings_t as;
struct audio_capture_ops ops;
- int shift;
+ int stereo, bits16, shift;
+ CaptureVoiceOut *cap;
+
+ if (bits != 8 && bits != 16) {
+ term_printf ("incorrect bit count %d, must be 8 or 16\n", bits);
+ return -1;
+ }
+
+ if (nchannels != 1 && nchannels != 2) {
+ term_printf ("incorrect channel count %d, must be 1 or 2\n", bits);
+ return -1;
+ }
- stereo = !!stereo;
- bits16 = !!bits16;
+ stereo = nchannels == 2;
+ bits16 = bits == 16;
as.freq = freq;
as.nchannels = 1 << stereo;
as.fmt = bits16 ? AUD_FMT_S16 : AUD_FMT_U8;
as.endianness = 0;
- ops.state = wav_state_cb;
- ops.capture = wav_capture_cb;
+ ops.notify = wav_notify;
+ ops.capture = wav_capture;
+ ops.destroy = wav_destroy;
wav = qemu_mallocz (sizeof (*wav));
if (!wav) {
AUD_log ("wav", "Could not allocate memory (%zu bytes)", sizeof (*wav));
- return;
+ return -1;
}
shift = bits16 + stereo;
@@ -91,12 +135,28 @@ void wav_capture (const char *path, int freq, int bits16, int stereo)
wav->f = fopen (path, "wb");
if (!wav->f) {
- AUD_log ("wav", "Failed to open wave file `%s'\nReason: %s\n",
- path, strerror (errno));
+ term_printf ("Failed to open wave file `%s'\nReason: %s\n",
+ path, strerror (errno));
qemu_free (wav);
- return;
+ return -1;
}
+ wav->path = qemu_strdup (path);
+ wav->bits = bits;
+ wav->nchannels = nchannels;
+ wav->freq = freq;
+
qemu_put_buffer (wav->f, hdr, sizeof (hdr));
- AUD_add_capture (NULL, &as, &ops, wav);
+
+ cap = AUD_add_capture (NULL, &as, &ops, wav);
+ if (!cap) {
+ term_printf ("Failed to add audio capture\n");
+ qemu_free (wav);
+ return -1;
+ }
+
+ wav->cap = cap;
+ s->opaque = wav;
+ s->ops = wav_capture_ops;
+ return 0;
}