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audiovisualizer: Don't wrap temporary memory in buffers

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Avoids potentially ending up with the buffermemory pointing to already-freed or reused addresses.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6339>
This commit is contained in:
Piotr Brzeziński 2024-03-11 18:30:08 +01:00 committed by GStreamer Marge Bot
parent 6b369d8470
commit 07e1f13e2c
1 changed files with 4 additions and 6 deletions
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10
subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstaudiovisualizer.c
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@ -1050,10 +1050,9 @@ gst_audio_visualizer_chain (GstPad * pad, GstObject * parent,
GstFlowReturn ret = GST_FLOW_OK;
GstAudioVisualizer *scope;
GstAudioVisualizerClass *klass;
GstBuffer *inbuf;
GstBuffer *inbuf, *databuf;
guint64 dist, ts;
guint avail, sbpf;
gpointer adata;
gint bpf, rate;
scope = GST_AUDIO_VISUALIZER (parent);
@ -1165,7 +1164,7 @@ gst_audio_visualizer_chain (GstPad * pad, GstObject * parent,
GST_BUFFER_DURATION (outbuf) = scope->priv->frame_duration;
/* this can fail as the data size we need could have changed */
if (!(adata = (gpointer) gst_adapter_map (scope->priv->adapter, sbpf)))
if (!(databuf = gst_adapter_get_buffer (scope->priv->adapter, sbpf)))
break;
gst_video_frame_map (&outframe, &scope->vinfo, outbuf,
@ -1182,9 +1181,8 @@ gst_audio_visualizer_chain (GstPad * pad, GstObject * parent,
}
}
gst_buffer_replace_all_memory (inbuf,
gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY, adata, sbpf, 0,
sbpf, NULL, NULL));
gst_buffer_copy_into (inbuf, databuf, GST_BUFFER_COPY_MEMORY, 0, sbpf);
gst_buffer_unref (databuf);
/* call class->render() vmethod */
if (klass->render) {