Rémi Bernon : winegstreamer: Return early if output buffer is too small.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0892b92b56531aa3b1c67948bf0cd06152ed361e
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=0892b92b56531aa3b1c67948b...

Author: Rémi Bernon <rbernon(a)codeweavers.com>
Date:   Wed May 25 11:06:55 2022 +0200

winegstreamer: Return early if output buffer is too small.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45988
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47084
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49715
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52183
Signed-off-by: Rémi Bernon <rbernon(a)codeweavers.com>

---

 dlls/winegstreamer/h264_decoder.c |  8 +++++---
 dlls/winegstreamer/wma_decoder.c  | 16 +++++++++++-----
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/dlls/winegstreamer/h264_decoder.c b/dlls/winegstreamer/h264_decoder.c
index de823741ba9..b7174d097ad 100644
--- a/dlls/winegstreamer/h264_decoder.c
+++ b/dlls/winegstreamer/h264_decoder.c
@@ -556,10 +556,12 @@ static HRESULT WINAPI transform_ProcessOutput(IMFTransform *iface, DWORD flags,
         return hr;
 
     if (wg_sample->max_size < info.cbSize)
-        hr = MF_E_BUFFERTOOSMALL;
-    else
-        hr = wg_transform_read_data(decoder->wg_transform, wg_sample);
+    {
+        mf_destroy_wg_sample(wg_sample);
+        return MF_E_BUFFERTOOSMALL;
+    }
 
+    hr = wg_transform_read_data(decoder->wg_transform, wg_sample);
     mf_destroy_wg_sample(wg_sample);
     return hr;
 }
diff --git a/dlls/winegstreamer/wma_decoder.c b/dlls/winegstreamer/wma_decoder.c
index 71369add244..70563649c9c 100644
--- a/dlls/winegstreamer/wma_decoder.c
+++ b/dlls/winegstreamer/wma_decoder.c
@@ -539,10 +539,12 @@ static HRESULT WINAPI transform_ProcessInput(IMFTransform *iface, DWORD id, IMFS
 
     /* WMA transform uses fixed size input samples and ignores samples with invalid sizes */
     if (wg_sample->size % info.cbSize)
-        hr = S_OK;
-    else
-        hr = wg_transform_push_data(decoder->wg_transform, wg_sample);
+    {
+        mf_destroy_wg_sample(wg_sample);
+        return S_OK;
+    }
 
+    hr = wg_transform_push_data(decoder->wg_transform, wg_sample);
     mf_destroy_wg_sample(wg_sample);
     return hr;
 }
@@ -579,8 +581,12 @@ static HRESULT WINAPI transform_ProcessOutput(IMFTransform *iface, DWORD flags,
 
     wg_sample->size = 0;
     if (wg_sample->max_size < info.cbSize)
-        hr = MF_E_BUFFERTOOSMALL;
-    else if (SUCCEEDED(hr = wg_transform_read_data(decoder->wg_transform, wg_sample)))
+    {
+        mf_destroy_wg_sample(wg_sample);
+        return MF_E_BUFFERTOOSMALL;
+    }
+
+    if (SUCCEEDED(hr = wg_transform_read_data(decoder->wg_transform, wg_sample)))
     {
         if (wg_sample->flags & WG_SAMPLE_FLAG_INCOMPLETE)
             samples[0].dwStatus |= MFT_OUTPUT_DATA_BUFFER_INCOMPLETE;