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qemuBuildSoundCommandLine: Generate codecs via JSON

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The codec devices have the following properties we control:
  cad=<uint32>           -  (default: 4294967295)
  audiodev=<str>         - ID of an audiodev to use as a backend

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2021-10-05 18:42:39 +02:00
parent e79e862a6c
commit 39f181dacc
1 changed files with 29 additions and 37 deletions
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66
src/qemu/qemu_command.c
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@ -4520,30 +4520,36 @@ qemuBuildSoundDevCmd(virCommand *cmd,
}
static char *
qemuBuildSoundCodecStr(const virDomainDef *def,
static int
qemuBuildSoundCodecCmd(virCommand *cmd,
const virDomainDef *def,
virDomainSoundDef *sound,
virDomainSoundCodecDef *codec,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *stype;
int type;
type = codec->type;
stype = qemuSoundCodecTypeToString(type);
virBufferAsprintf(&buf, "%s,id=%s-codec%d,bus=%s.0,cad=%d",
stype, sound->info.alias, codec->cad, sound->info.alias, codec->cad);
g_autoptr(virJSONValue) props = NULL;
g_autofree char *audioid = NULL;
g_autofree char *alias = g_strdup_printf("%s-codec%d", sound->info.alias, codec->cad);
g_autofree char *bus = g_strdup_printf("%s.0", sound->info.alias);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_AUDIODEV)) {
g_autofree char *audioid = qemuGetAudioIDString(def, sound->audioId);
if (!audioid)
return NULL;
virBufferAsprintf(&buf, ",audiodev=%s", audioid);
if (!(audioid = qemuGetAudioIDString(def, sound->audioId)))
return -1;
}
return virBufferContentAndReset(&buf);
if (virJSONValueObjectCreate(&props,
"s:driver", qemuSoundCodecTypeToString(codec->type),
"s:id", alias,
"s:bus", bus,
"i:cad", codec->cad,
"S:audiodev", audioid,
NULL) < 0)
return -1;
if (qemuBuildDeviceCommandlineFromJSON(cmd, props, qemuCaps) < 0)
return -1;
return 0;
}
@ -4571,30 +4577,16 @@ qemuBuildSoundCommandLine(virCommand *cmd,
if (virDomainSoundModelSupportsCodecs(sound)) {
for (j = 0; j < sound->ncodecs; j++) {
g_autofree char *codecstr = NULL;
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(def, sound,
sound->codecs[j], qemuCaps))) {
if (qemuBuildSoundCodecCmd(cmd, def, sound, sound->codecs[j],
qemuCaps) < 0)
return -1;
}
virCommandAddArg(cmd, codecstr);
}
if (j == 0) {
g_autofree char *codecstr = NULL;
virDomainSoundCodecDef codec = {
VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX,
0
};
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(def, sound,
&codec, qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
if (j == 0) {
virDomainSoundCodecDef codec = { VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX, 0 };
if (qemuBuildSoundCodecCmd(cmd, def, sound, &codec, qemuCaps) < 0)
return -1;
}
}
}