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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/audio/wavcapture.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/audio/wavcapture.c')
-rw-r--r--qemu/audio/wavcapture.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/qemu/audio/wavcapture.c b/qemu/audio/wavcapture.c
new file mode 100644
index 000000000..86e905627
--- /dev/null
+++ b/qemu/audio/wavcapture.c
@@ -0,0 +1,194 @@
+#include "hw/hw.h"
+#include "monitor/monitor.h"
+#include "qemu/error-report.h"
+#include "audio.h"
+
+typedef struct {
+ FILE *f;
+ int bytes;
+ char *path;
+ int freq;
+ int bits;
+ int nchannels;
+ CaptureVoiceOut *cap;
+} 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_notify (void *opaque, audcnotification_e cmd)
+{
+ (void) opaque;
+ (void) cmd;
+}
+
+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;
+ Monitor *mon = cur_mon;
+
+ if (wav->f) {
+ le_store (rlen, rifflen, 4);
+ le_store (dlen, datalen, 4);
+
+ if (fseek (wav->f, 4, SEEK_SET)) {
+ monitor_printf (mon, "wav_destroy: rlen fseek failed\nReason: %s\n",
+ strerror (errno));
+ goto doclose;
+ }
+ if (fwrite (rlen, 4, 1, wav->f) != 1) {
+ monitor_printf (mon, "wav_destroy: rlen fwrite failed\nReason %s\n",
+ strerror (errno));
+ goto doclose;
+ }
+ if (fseek (wav->f, 32, SEEK_CUR)) {
+ monitor_printf (mon, "wav_destroy: dlen fseek failed\nReason %s\n",
+ strerror (errno));
+ goto doclose;
+ }
+ if (fwrite (dlen, 1, 4, wav->f) != 4) {
+ monitor_printf (mon, "wav_destroy: dlen fwrite failed\nReason %s\n",
+ strerror (errno));
+ goto doclose;
+ }
+ doclose:
+ if (fclose (wav->f)) {
+ error_report("wav_destroy: fclose failed: %s", strerror(errno));
+ }
+ }
+
+ g_free (wav->path);
+}
+
+static void wav_capture (void *opaque, void *buf, int size)
+{
+ WAVState *wav = opaque;
+
+ if (fwrite (buf, size, 1, wav->f) != 1) {
+ monitor_printf (cur_mon, "wav_capture: fwrite error\nReason: %s",
+ strerror (errno));
+ }
+ wav->bytes += size;
+}
+
+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;
+
+ monitor_printf (cur_mon, "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)
+{
+ Monitor *mon = cur_mon;
+ 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
+ };
+ struct audsettings as;
+ struct audio_capture_ops ops;
+ int stereo, bits16, shift;
+ CaptureVoiceOut *cap;
+
+ if (bits != 8 && bits != 16) {
+ monitor_printf (mon, "incorrect bit count %d, must be 8 or 16\n", bits);
+ return -1;
+ }
+
+ if (nchannels != 1 && nchannels != 2) {
+ monitor_printf (mon, "incorrect channel count %d, must be 1 or 2\n",
+ nchannels);
+ return -1;
+ }
+
+ 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.notify = wav_notify;
+ ops.capture = wav_capture;
+ ops.destroy = wav_destroy;
+
+ wav = g_malloc0 (sizeof (*wav));
+
+ 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) {
+ monitor_printf (mon, "Failed to open wave file `%s'\nReason: %s\n",
+ path, strerror (errno));
+ g_free (wav);
+ return -1;
+ }
+
+ wav->path = g_strdup (path);
+ wav->bits = bits;
+ wav->nchannels = nchannels;
+ wav->freq = freq;
+
+ if (fwrite (hdr, sizeof (hdr), 1, wav->f) != 1) {
+ monitor_printf (mon, "Failed to write header\nReason: %s\n",
+ strerror (errno));
+ goto error_free;
+ }
+
+ cap = AUD_add_capture (&as, &ops, wav);
+ if (!cap) {
+ monitor_printf (mon, "Failed to add audio capture\n");
+ goto error_free;
+ }
+
+ wav->cap = cap;
+ s->opaque = wav;
+ s->ops = wav_capture_ops;
+ return 0;
+
+error_free:
+ g_free (wav->path);
+ if (fclose (wav->f)) {
+ monitor_printf (mon, "Failed to close wave file\nReason: %s\n",
+ strerror (errno));
+ }
+ g_free (wav);
+ return -1;
+}