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vaapipostproc: fix memory leaks with advanced deinterlacing.

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Fix memory leaks with advanced deinterlacing, i.e. when we keep track
of past buffers. Completely reset the deinterlace state, thus destroying
any buffer currently held, on _start(), _stop() and _destroy().
This commit is contained in:
Gwenole Beauchesne 2013-11-22 09:49:30 +01:00
parent 7e1574b061
commit 98ac557e87
1 changed files with 52 additions and 45 deletions
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97
gst/vaapi/gstvaapipostproc.c
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@ -189,6 +189,55 @@ gst_vaapi_deinterlace_mode_get_type(void)
return deinterlace_mode_type;
}
static void
ds_reset(GstVaapiDeinterlaceState *ds)
{
guint i;
for (i = 0; i < G_N_ELEMENTS(ds->buffers); i++)
gst_buffer_replace(&ds->buffers[i], NULL);
ds->buffers_index = 0;
ds->num_surfaces = 0;
ds->deint = FALSE;
ds->tff = FALSE;
}
static void
ds_add_buffer(GstVaapiDeinterlaceState *ds, GstBuffer *buf)
{
gst_buffer_replace(&ds->buffers[ds->buffers_index], buf);
ds->buffers_index = (ds->buffers_index + 1) % G_N_ELEMENTS(ds->buffers);
}
static inline GstBuffer *
ds_get_buffer(GstVaapiDeinterlaceState *ds, guint index)
{
/* Note: the index increases towards older buffers.
i.e. buffer at index 0 means the immediately preceding buffer
in the history, buffer at index 1 means the one preceding the
surface at index 0, etc. */
const guint n = ds->buffers_index + G_N_ELEMENTS(ds->buffers) - index - 1;
return ds->buffers[n % G_N_ELEMENTS(ds->buffers)];
}
static void
ds_set_surfaces(GstVaapiDeinterlaceState *ds)
{
GstVaapiVideoMeta *meta;
guint i;
ds->num_surfaces = 0;
for (i = 0; i < G_N_ELEMENTS(ds->buffers); i++) {
GstBuffer * const buf = ds_get_buffer(ds, i);
if (!buf)
break;
meta = gst_buffer_get_vaapi_video_meta(buf);
ds->surfaces[ds->num_surfaces++] =
gst_vaapi_video_meta_get_surface(meta);
}
}
static GstVaapiFilterOpInfo *
find_filter_op(GPtrArray *filter_ops, GstVaapiFilterOp op)
{
@ -318,6 +367,7 @@ gst_vaapipostproc_destroy_filter(GstVaapiPostproc *postproc)
static void
gst_vaapipostproc_destroy(GstVaapiPostproc *postproc)
{
ds_reset(&postproc->deinterlace_state);
#if GST_CHECK_VERSION(1,0,0)
g_clear_object(&postproc->sinkpad_buffer_pool);
#endif
@ -336,6 +386,7 @@ gst_vaapipostproc_start(GstBaseTransform *trans)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
ds_reset(&postproc->deinterlace_state);
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
return TRUE;
@ -346,6 +397,7 @@ gst_vaapipostproc_stop(GstBaseTransform *trans)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
ds_reset(&postproc->deinterlace_state);
gst_vaapi_display_replace(&postproc->display, NULL);
return TRUE;
}
@ -404,51 +456,6 @@ append_output_buffer_metadata(GstBuffer *outbuf, GstBuffer *inbuf, guint flags)
0, -1);
}
static void
ds_reset(GstVaapiDeinterlaceState *ds)
{
guint i;
for (i = 0; i < G_N_ELEMENTS(ds->buffers); i++)
gst_buffer_replace(&ds->buffers[i], NULL);
ds->buffers_index = 0;
ds->num_surfaces = 0;
ds->deint = FALSE;
ds->tff = FALSE;
}
static void
ds_add_buffer(GstVaapiDeinterlaceState *ds, GstBuffer *buf)
{
gst_buffer_replace(&ds->buffers[ds->buffers_index], buf);
ds->buffers_index = (ds->buffers_index + 1) % G_N_ELEMENTS(ds->buffers);
}
static inline GstBuffer *
ds_get_buffer(GstVaapiDeinterlaceState *ds, guint index)
{
const guint n = ds->buffers_index + G_N_ELEMENTS(ds->buffers) - index - 1;
return ds->buffers[n % G_N_ELEMENTS(ds->buffers)];
}
static void
ds_set_surfaces(GstVaapiDeinterlaceState *ds)
{
GstVaapiVideoMeta *meta;
guint i;
ds->num_surfaces = 0;
for (i = 0; i < G_N_ELEMENTS(ds->buffers); i++) {
GstBuffer * const buf = ds_get_buffer(ds, i);
if (!buf)
break;
meta = gst_buffer_get_vaapi_video_meta(buf);
ds->surfaces[ds->num_surfaces++] =
gst_vaapi_video_meta_get_surface(meta);
}
}
static GstVaapiDeinterlaceMethod
get_next_deint_method(GstVaapiDeinterlaceMethod deint_method)
{