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basetransform: only get caps for size transform

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Delay getting the caps until we need to call the transform_size function.
This commit is contained in:
Wim Taymans 2011-07-21 14:14:58 +02:00
parent e4ee356449
commit 3bb167a1bf
1 changed files with 37 additions and 34 deletions
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71
libs/gst/base/gstbasetransform.c
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@ -1371,8 +1371,6 @@ gst_base_transform_prepare_output_buffer (GstBaseTransform * trans,
GstBaseTransformPrivate *priv; GstBaseTransformPrivate *priv;
GstFlowReturn ret = GST_FLOW_OK; GstFlowReturn ret = GST_FLOW_OK;
gboolean copymeta; gboolean copymeta;
gsize insize, outsize;
GstCaps *incaps = NULL, *outcaps = NULL;
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans); bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
@ -1380,34 +1378,6 @@ gst_base_transform_prepare_output_buffer (GstBaseTransform * trans,
*out_buf = NULL; *out_buf = NULL;
insize = gst_buffer_get_size (in_buf);
/* figure out how to allocate a buffer based on the current configuration */
if (trans->passthrough) {
GST_DEBUG_OBJECT (trans, "doing passthrough alloc");
/* passthrough, the output size is the same as the input size. */
outsize = insize;
} else {
gboolean want_in_place = (bclass->transform_ip != NULL)
&& trans->always_in_place;
if (want_in_place) {
GST_DEBUG_OBJECT (trans, "doing inplace alloc");
/* we alloc a buffer of the same size as the input */
outsize = insize;
} else {
incaps = gst_pad_get_current_caps (trans->sinkpad);
outcaps = gst_pad_get_current_caps (trans->srcpad);
GST_DEBUG_OBJECT (trans, "getting output size for copy transform");
/* copy transform, figure out the output size */
if (!gst_base_transform_transform_size (trans,
GST_PAD_SINK, incaps, insize, outcaps, &outsize)) {
goto unknown_size;
}
}
}
if (bclass->prepare_output_buffer) { if (bclass->prepare_output_buffer) {
GST_DEBUG_OBJECT (trans, "calling prepare buffer"); GST_DEBUG_OBJECT (trans, "calling prepare buffer");
ret = bclass->prepare_output_buffer (trans, in_buf, out_buf); ret = bclass->prepare_output_buffer (trans, in_buf, out_buf);
@ -1432,6 +1402,43 @@ gst_base_transform_prepare_output_buffer (GstBaseTransform * trans,
GST_DEBUG_OBJECT (trans, "using pool alloc"); GST_DEBUG_OBJECT (trans, "using pool alloc");
ret = gst_buffer_pool_acquire_buffer (priv->pool, out_buf, NULL); ret = gst_buffer_pool_acquire_buffer (priv->pool, out_buf, NULL);
} else { } else {
gsize insize, outsize;
gboolean res;
/* no pool, we need to figure out the size of the output buffer first */
insize = gst_buffer_get_size (in_buf);
if (trans->passthrough) {
GST_DEBUG_OBJECT (trans, "doing passthrough alloc");
/* passthrough, the output size is the same as the input size. */
outsize = insize;
} else {
gboolean want_in_place = (bclass->transform_ip != NULL)
&& trans->always_in_place;
if (want_in_place) {
GST_DEBUG_OBJECT (trans, "doing inplace alloc");
/* we alloc a buffer of the same size as the input */
outsize = insize;
} else {
GstCaps *incaps, *outcaps;
/* else use the transform function to get the size */
incaps = gst_pad_get_current_caps (trans->sinkpad);
outcaps = gst_pad_get_current_caps (trans->srcpad);
GST_DEBUG_OBJECT (trans, "getting output size for alloc");
/* copy transform, figure out the output size */
res = gst_base_transform_transform_size (trans,
GST_PAD_SINK, incaps, insize, outcaps, &outsize);
gst_caps_unref (incaps);
gst_caps_unref (outcaps);
if (!res)
goto unknown_size;
}
}
GST_DEBUG_OBJECT (trans, "doing alloc of size %u", outsize); GST_DEBUG_OBJECT (trans, "doing alloc of size %u", outsize);
*out_buf = *out_buf =
gst_buffer_new_allocate (priv->allocator, outsize, priv->alignment); gst_buffer_new_allocate (priv->allocator, outsize, priv->alignment);
@ -1500,10 +1507,6 @@ gst_base_transform_prepare_output_buffer (GstBaseTransform * trans,
} }
done: done:
if (incaps)
gst_caps_unref (incaps);
if (outcaps)
gst_caps_unref (outcaps);
return ret; return ret;