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From: "Volker Rümelin" <vr_qemu@t-online.de>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: QEMU <qemu-devel@nongnu.org>, "Zoltán Kővágó" <dirty.ice.hu@gmail.com>
Subject: [PATCH 22/23] dsoundaudio: enable f32 audio sample format
Date: Sun, 10 Jan 2021 11:02:38 +0100
Message-ID: <20210110100239.27588-22-vr_qemu@t-online.de> (raw)
In-Reply-To: <9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de>

Enable the f32 audio sample format for the DirectSound backend.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
---
 audio/audio_win_int.c | 71 ++++++++++++++++++++++++++++---------------
 1 file changed, 47 insertions(+), 24 deletions(-)

diff --git a/audio/audio_win_int.c b/audio/audio_win_int.c
index b938fd667b..b7db34900c 100644
--- a/audio/audio_win_int.c
+++ b/audio/audio_win_int.c
@@ -5,6 +5,7 @@
 
 #define AUDIO_CAP "win-int"
 #include <windows.h>
+#include <mmreg.h>
 #include <mmsystem.h>
 
 #include "audio.h"
@@ -16,7 +17,6 @@ int waveformat_from_audio_settings (WAVEFORMATEX *wfx,
 {
     memset (wfx, 0, sizeof (*wfx));
 
-    wfx->wFormatTag = WAVE_FORMAT_PCM;
     wfx->nChannels = as->nchannels;
     wfx->nSamplesPerSec = as->freq;
     wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
@@ -26,11 +26,13 @@ int waveformat_from_audio_settings (WAVEFORMATEX *wfx,
     switch (as->fmt) {
     case AUDIO_FORMAT_S8:
     case AUDIO_FORMAT_U8:
+        wfx->wFormatTag = WAVE_FORMAT_PCM;
         wfx->wBitsPerSample = 8;
         break;
 
     case AUDIO_FORMAT_S16:
     case AUDIO_FORMAT_U16:
+        wfx->wFormatTag = WAVE_FORMAT_PCM;
         wfx->wBitsPerSample = 16;
         wfx->nAvgBytesPerSec <<= 1;
         wfx->nBlockAlign <<= 1;
@@ -38,6 +40,14 @@ int waveformat_from_audio_settings (WAVEFORMATEX *wfx,
 
     case AUDIO_FORMAT_S32:
     case AUDIO_FORMAT_U32:
+        wfx->wFormatTag = WAVE_FORMAT_PCM;
+        wfx->wBitsPerSample = 32;
+        wfx->nAvgBytesPerSec <<= 2;
+        wfx->nBlockAlign <<= 2;
+        break;
+
+    case AUDIO_FORMAT_F32:
+        wfx->wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
         wfx->wBitsPerSample = 32;
         wfx->nAvgBytesPerSec <<= 2;
         wfx->nBlockAlign <<= 2;
@@ -54,12 +64,6 @@ int waveformat_from_audio_settings (WAVEFORMATEX *wfx,
 int waveformat_to_audio_settings (WAVEFORMATEX *wfx,
                                   struct audsettings *as)
 {
-    if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
-        dolog ("Invalid wave format, tag is not PCM, but %d\n",
-               wfx->wFormatTag);
-        return -1;
-    }
-
     if (!wfx->nSamplesPerSec) {
         dolog ("Invalid wave format, frequency is zero\n");
         return -1;
@@ -83,23 +87,42 @@ int waveformat_to_audio_settings (WAVEFORMATEX *wfx,
         return -1;
     }
 
-    switch (wfx->wBitsPerSample) {
-    case 8:
-        as->fmt = AUDIO_FORMAT_U8;
-        break;
-
-    case 16:
-        as->fmt = AUDIO_FORMAT_S16;
-        break;
-
-    case 32:
-        as->fmt = AUDIO_FORMAT_S32;
-        break;
-
-    default:
-        dolog ("Invalid wave format, bits per sample is not "
-               "8, 16 or 32, but %d\n",
-               wfx->wBitsPerSample);
+    if (wfx->wFormatTag == WAVE_FORMAT_PCM) {
+        switch (wfx->wBitsPerSample) {
+        case 8:
+            as->fmt = AUDIO_FORMAT_U8;
+            break;
+
+        case 16:
+            as->fmt = AUDIO_FORMAT_S16;
+            break;
+
+        case 32:
+            as->fmt = AUDIO_FORMAT_S32;
+            break;
+
+        default:
+            dolog("Invalid PCM wave format, bits per sample is not "
+                  "8, 16 or 32, but %d\n",
+                  wfx->wBitsPerSample);
+            return -1;
+        }
+    } else if (wfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) {
+        switch (wfx->wBitsPerSample) {
+        case 32:
+            as->fmt = AUDIO_FORMAT_F32;
+            break;
+
+        default:
+            dolog("Invalid IEEE_FLOAT wave format, bits per sample is not "
+                  "32, but %d\n",
+                  wfx->wBitsPerSample);
+            return -1;
+        }
+    } else {
+        dolog("Invalid wave format, tag is not PCM and not IEEE_FLOAT, "
+              "but %d\n",
+              wfx->wFormatTag);
         return -1;
     }
 
-- 
2.26.2



  parent reply index

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-10 10:01 [PATCH 00/23] next round of audio patches Volker Rümelin
2021-01-10 10:02 ` [PATCH 01/23] sdlaudio: remove leftover SDL1.2 code Volker Rümelin
2021-01-14 15:28   ` Thomas Huth
2021-01-10 10:02 ` [PATCH 02/23] audio: fix bit-rotted code Volker Rümelin
2021-01-14 14:32   ` Gerd Hoffmann
2021-01-31 17:13     ` Volker Rümelin
2021-01-10 10:02 ` [PATCH 03/23] sdlaudio: add -audiodev sdl,out.buffer-count option Volker Rümelin
2021-01-14 14:27   ` [PATCH 03/23] sdlaudio: add -audiodev sdl, out.buffer-count option Gerd Hoffmann
2021-01-31 17:30     ` Volker Rümelin
2021-01-15  8:39   ` Markus Armbruster
2021-01-10 10:02 ` [PATCH 04/23] sdlaudio: don't start playback in init routine Volker Rümelin
2021-01-15  6:28   ` Thomas Huth
2021-01-10 10:02 ` [PATCH 05/23] sdlaudio: always clear the sample buffer Volker Rümelin
2021-01-15  6:31   ` Thomas Huth
2021-01-10 10:02 ` [PATCH 06/23] sdlaudio: fill remaining sample buffer with silence Volker Rümelin
2021-01-14 16:58   ` Thomas Huth
2021-01-17  9:41     ` Volker Rümelin
2021-01-10 10:02 ` [PATCH 07/23] sdlaudio: replace legacy functions with modern ones Volker Rümelin
2021-01-15  7:04   ` Thomas Huth
2021-01-10 10:02 ` [PATCH 08/23] audio: split pcm_ops function get_buffer_in Volker Rümelin
2021-01-10 10:02 ` [PATCH 09/23] sdlaudio: add recording functions Volker Rümelin
2021-01-10 10:02 ` [PATCH 10/23] audio: break generic buffer dependency on mixing-engine Volker Rümelin
2021-01-10 10:02 ` [PATCH 11/23] sdlaudio: enable (in|out).mixing-engine=off Volker Rümelin
2021-01-10 10:02 ` [PATCH 12/23] audio: remove remaining unused plive code Volker Rümelin
2021-01-10 10:02 ` [PATCH 13/23] paaudio: avoid to clip samples multiple times Volker Rümelin
2021-01-10 10:02 ` [PATCH 14/23] paaudio: wait for PA_STREAM_READY in qpa_write() Volker Rümelin
2021-01-10 10:02 ` [PATCH 15/23] paaudio: wait until the playback stream is ready Volker Rümelin
2021-01-10 10:02 ` [PATCH 16/23] paaudio: remove unneeded code Volker Rümelin
2021-01-10 10:02 ` [PATCH 17/23] paaudio: comment bugs in functions qpa_init_* Volker Rümelin
2021-01-10 10:02 ` [PATCH 18/23] paaudio: limit minreq to 75% of audio timer_rate Volker Rümelin
2021-01-10 10:02 ` [PATCH 19/23] paaudio: send recorded data in smaller chunks Volker Rümelin
2021-01-10 10:02 ` [PATCH 20/23] dsoundaudio: replace GetForegroundWindow() Volker Rümelin
2021-01-10 10:02 ` [PATCH 21/23] dsoundaudio: rename dsound_open() Volker Rümelin
2021-01-10 10:02 ` Volker Rümelin [this message]
2021-01-10 10:02 ` [PATCH 23/23] dsoundaudio: fix log message Volker Rümelin
2021-01-10 10:24 ` [PATCH 00/23] next round of audio patches no-reply
2021-01-10 23:09   ` Volker Rümelin
2021-01-14 14:36 ` Gerd Hoffmann

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