fix: handle stereo format in sd_audio (#1489)

stduhpf · leejet · leejet · commit cde20d5ef026 · 2026-05-17T16:55:39.000+08:00
Co-authored-by: leejet &lt;leejet714@gmail.com&gt;
diff --git a/src/stable-diffusion.cpp b/src/stable-diffusion.cpp
@@ -2789,7 +2789,10 @@ static sd_audio_t* waveform_to_sd_audio(const StableDiffusionGGML* sd,
         free(audio);
         return nullptr;
     }
-    std::memcpy(audio->data, waveform.data(), sample_bytes);
+
+    auto wavaform_t = waveform.permute({1, 0, 2, 3});
+    std::memcpy(audio->data, wavaform_t.data(), sample_bytes);
+
     return audio;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -2789,7 +2789,10 @@ static sd_audio_t* waveform_to_sd_audio(const StableDiffusionGGML* sd,`
`2789`	`2789`	`free(audio);`
`2790`	`2790`	`return nullptr;`
`2791`	`2791`	`}`
`2792`		`- std::memcpy(audio->data, waveform.data(), sample_bytes);`
	`2792`	`+`
	`2793`	`+ auto wavaform_t = waveform.permute({1, 0, 2, 3});`
	`2794`	`+ std::memcpy(audio->data, wavaform_t.data(), sample_bytes);`
	`2795`	`+`
`2793`	`2796`	`return audio;`
`2794`	`2797`	`}`
`2795`	`2798`