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[FFmpeg-devel,v2,1/3] avutil/hwcontext_qsv: register free function for device_derive

Message ID 20230619061509.1363-1-tong1.wu@intel.com
State New
Headers show
Series [FFmpeg-devel,v2,1/3] avutil/hwcontext_qsv: register free function for device_derive | expand

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Commit Message

Wu, Tong1 June 19, 2023, 6:15 a.m. UTC
When qsv device is created by device_derive, the ctx->free function is
not registered, causing potential memory leak because of not properly
closing the MFX session.

Signed-off-by: Tong Wu <tong1.wu@intel.com>
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
---
 libavutil/hwcontext_qsv.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Xiang, Haihao June 20, 2023, 2:34 a.m. UTC | #1
On Ma, 2023-06-19 at 14:15 +0800, Tong Wu wrote:
> When qsv device is created by device_derive, the ctx->free function is
> not registered, causing potential memory leak because of not properly
> closing the MFX session.
> 
> Signed-off-by: Tong Wu <tong1.wu@intel.com>
> Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
> ---
>  libavutil/hwcontext_qsv.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
> index 4ed4242ddf..878ecd886e 100644
> --- a/libavutil/hwcontext_qsv.c
> +++ b/libavutil/hwcontext_qsv.c
> @@ -2094,6 +2094,15 @@ static int qsv_device_derive(AVHWDeviceContext *ctx,
>                               AVDictionary *opts, int flags)
>  {
>      mfxIMPL impl;
> +    QSVDevicePriv *priv;
> +
> +    priv = av_mallocz(sizeof(*priv));
> +    if (!priv)
> +        return AVERROR(ENOMEM);
> +
> +    ctx->user_opaque = priv;
> +    ctx->free = qsv_device_free;
> +    
>      impl = choose_implementation("hw_any", child_device_ctx->type);
>      return qsv_device_derive_from_child(ctx, impl,
>                                          child_device_ctx, flags);

Patchset LGTM and will apply

Thanks
Haihao
diff mbox series

Patch

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 4ed4242ddf..878ecd886e 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -2094,6 +2094,15 @@  static int qsv_device_derive(AVHWDeviceContext *ctx,
                              AVDictionary *opts, int flags)
 {
     mfxIMPL impl;
+    QSVDevicePriv *priv;
+
+    priv = av_mallocz(sizeof(*priv));
+    if (!priv)
+        return AVERROR(ENOMEM);
+
+    ctx->user_opaque = priv;
+    ctx->free = qsv_device_free;
+    
     impl = choose_implementation("hw_any", child_device_ctx->type);
     return qsv_device_derive_from_child(ctx, impl,
                                         child_device_ctx, flags);