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726290de21
we implement "acceptcaps" to prevent us from getting a buffer with different width and height from what we requested.
427 lines
11 KiB
C
427 lines
11 KiB
C
/*
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* GStreamer
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* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gstvdputils.h"
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#include "gstvdpvideobuffer.h"
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#include "gstvdpoutputbufferpool.h"
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#include "gstvdpoutputsrcpad.h"
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GST_DEBUG_CATEGORY_STATIC (gst_vdp_output_src_pad_debug);
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#define GST_CAT_DEFAULT gst_vdp_output_src_pad_debug
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enum
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{
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PROP_0,
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PROP_DEVICE
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};
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typedef enum _GstVdpOutputSrcPadFormat GstVdpOutputSrcPadFormat;
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enum _GstVdpOutputSrcPadFormat
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{
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GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB,
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GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU
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};
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struct _GstVdpOutputSrcPad
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{
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GstPad pad;
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GstCaps *caps;
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GstCaps *output_caps;
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GstVdpOutputSrcPadFormat output_format;
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VdpRGBAFormat rgba_format;
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gint width, height;
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GstVdpBufferPool *bpool;
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gboolean lock_caps;
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/* properties */
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GstVdpDevice *device;
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};
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struct _GstVdpOutputSrcPadClass
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{
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GstPadClass pad_class;
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};
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_vdp_output_src_pad_debug, "vdpoutputsrcpad", 0, "GstVdpOutputSrcPad");
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G_DEFINE_TYPE_WITH_CODE (GstVdpOutputSrcPad, gst_vdp_output_src_pad,
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GST_TYPE_PAD, DEBUG_INIT ());
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GstFlowReturn
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gst_vdp_output_src_pad_push (GstVdpOutputSrcPad * vdp_pad,
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GstVdpOutputBuffer * output_buf, GError ** error)
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{
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GstPad *pad;
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GstBuffer *outbuf;
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g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), GST_FLOW_ERROR);
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g_return_val_if_fail (GST_IS_VDP_OUTPUT_BUFFER (output_buf), GST_FLOW_ERROR);
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pad = (GstPad *) vdp_pad;
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if (G_UNLIKELY (!GST_PAD_CAPS (pad)))
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return GST_FLOW_NOT_NEGOTIATED;
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switch (vdp_pad->output_format) {
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case GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB:
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{
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GstFlowReturn ret;
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guint size;
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gst_vdp_output_buffer_calculate_size (output_buf, &size);
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vdp_pad->lock_caps = TRUE;
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ret = gst_pad_alloc_buffer (pad, 0, size, GST_PAD_CAPS (vdp_pad),
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&outbuf);
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vdp_pad->lock_caps = FALSE;
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if (ret != GST_FLOW_OK) {
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gst_buffer_unref (GST_BUFFER_CAST (output_buf));
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return ret;
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}
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if (!gst_vdp_output_buffer_download (output_buf, outbuf, error)) {
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gst_buffer_unref (GST_BUFFER_CAST (output_buf));
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gst_buffer_unref (outbuf);
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return GST_FLOW_ERROR;
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}
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gst_buffer_copy_metadata (outbuf, (const GstBuffer *) output_buf,
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GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
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gst_buffer_unref (GST_BUFFER_CAST (output_buf));
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break;
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}
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case GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU:
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{
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outbuf = GST_BUFFER_CAST (output_buf);
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break;
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}
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default:
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g_assert_not_reached ();
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break;
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}
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gst_buffer_set_caps (outbuf, GST_PAD_CAPS (vdp_pad));
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return gst_pad_push (pad, outbuf);
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}
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static GstFlowReturn
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gst_vdp_output_src_pad_create_buffer (GstVdpOutputSrcPad * vdp_pad,
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GstVdpOutputBuffer ** output_buf, GError ** error)
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{
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GstFlowReturn ret;
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GstBuffer *neg_buf;
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/* negotiate */
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ret = gst_pad_alloc_buffer_and_set_caps (GST_PAD_CAST (vdp_pad),
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GST_BUFFER_OFFSET_NONE, 0, GST_PAD_CAPS (vdp_pad), &neg_buf);
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if (ret == GST_FLOW_OK)
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gst_buffer_unref (neg_buf);
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*output_buf =
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(GstVdpOutputBuffer *) gst_vdp_buffer_pool_get_buffer (vdp_pad->bpool,
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error);
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if (!*output_buf)
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return GST_FLOW_ERROR;
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_vdp_output_src_pad_alloc_with_caps (GstVdpOutputSrcPad * vdp_pad,
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GstCaps * caps, GstVdpOutputBuffer ** output_buf, GError ** error)
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{
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GstFlowReturn ret;
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ret = gst_pad_alloc_buffer_and_set_caps ((GstPad *) vdp_pad, 0, 0, caps,
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(GstBuffer **) output_buf);
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if (ret != GST_FLOW_OK)
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return ret;
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if (!GST_IS_VDP_OUTPUT_BUFFER (*output_buf))
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goto invalid_buf;
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return GST_FLOW_OK;
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invalid_buf:
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gst_buffer_unref (GST_BUFFER (*output_buf));
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g_set_error (error, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
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"Sink element returned buffer of wrong type");
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return GST_FLOW_ERROR;
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}
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GstFlowReturn
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gst_vdp_output_src_pad_alloc_buffer (GstVdpOutputSrcPad * vdp_pad,
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GstVdpOutputBuffer ** output_buf, GError ** error)
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{
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GstCaps *caps;
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GstFlowReturn ret;
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g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), GST_FLOW_ERROR);
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caps = GST_PAD_CAPS (vdp_pad);
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if (!caps)
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return GST_FLOW_NOT_NEGOTIATED;
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switch (vdp_pad->output_format) {
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case GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB:
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{
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ret = gst_vdp_output_src_pad_create_buffer (vdp_pad, output_buf, error);
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if (ret != GST_FLOW_OK)
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return ret;
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break;
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}
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case GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU:
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{
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ret = gst_vdp_output_src_pad_alloc_with_caps (vdp_pad, caps, output_buf,
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error);
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if (ret != GST_FLOW_OK)
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return ret;
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break;
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}
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default:
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g_assert_not_reached ();
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break;
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}
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return GST_FLOW_OK;
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}
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static gboolean
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gst_vdp_output_src_pad_acceptcaps (GstPad * pad, GstCaps * caps)
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{
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GstVdpOutputSrcPad *vdp_pad = GST_VDP_OUTPUT_SRC_PAD (pad);
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if (!vdp_pad->lock_caps)
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return TRUE;
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return gst_caps_is_equal_fixed (caps, GST_PAD_CAPS (pad));
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}
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static gboolean
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gst_vdp_output_src_pad_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstVdpOutputSrcPad *vdp_pad = GST_VDP_OUTPUT_SRC_PAD (pad);
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const GstStructure *structure;
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "width", &vdp_pad->width))
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return FALSE;
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if (!gst_structure_get_int (structure, "height", &vdp_pad->height))
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return FALSE;
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if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
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if (!gst_vdp_caps_to_rgba_format (caps, &vdp_pad->rgba_format))
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return FALSE;
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/* create buffer pool if we dont't have one */
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if (!vdp_pad->bpool)
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vdp_pad->bpool = gst_vdp_output_buffer_pool_new (vdp_pad->device);
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if (vdp_pad->output_caps)
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gst_caps_unref (vdp_pad->output_caps);
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vdp_pad->output_caps = gst_caps_new_simple ("video/x-vdpau-output",
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"rgba-format", G_TYPE_INT, vdp_pad->rgba_format,
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"width", G_TYPE_INT, vdp_pad->width, "height", G_TYPE_INT,
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vdp_pad->height, NULL);
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gst_vdp_buffer_pool_set_caps (vdp_pad->bpool, vdp_pad->output_caps);
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vdp_pad->output_format = GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB;
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} else if (gst_structure_has_name (structure, "video/x-vdpau-output")) {
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if (!gst_structure_get_int (structure, "rgba-format",
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(gint *) & vdp_pad->rgba_format))
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return FALSE;
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/* don't need the buffer pool */
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if (vdp_pad->bpool) {
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gst_object_unref (vdp_pad->bpool);
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vdp_pad->bpool = NULL;
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}
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vdp_pad->output_format = GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU;
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} else
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return FALSE;
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return TRUE;
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}
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static GstCaps *
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gst_vdp_output_src_pad_getcaps (GstPad * pad)
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{
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GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) pad;
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const GstCaps *templ_caps;
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if (vdp_pad->caps)
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return gst_caps_ref (vdp_pad->caps);
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else if ((templ_caps = gst_pad_get_pad_template_caps (pad)))
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return gst_caps_copy (templ_caps);
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return NULL;
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}
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static gboolean
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gst_vdp_output_src_pad_activate_push (GstPad * pad, gboolean active)
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{
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GstVdpOutputSrcPad *vdp_pad = GST_VDP_OUTPUT_SRC_PAD (pad);
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if (!active) {
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if (vdp_pad->caps)
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gst_caps_unref (vdp_pad->caps);
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vdp_pad->caps = NULL;
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if (vdp_pad->output_caps)
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gst_caps_unref (vdp_pad->output_caps);
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vdp_pad->output_caps = NULL;
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if (vdp_pad->bpool)
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g_object_unref (vdp_pad->bpool);
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vdp_pad->bpool = NULL;
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if (vdp_pad->device)
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g_object_unref (vdp_pad->device);
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vdp_pad->device = NULL;
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}
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return TRUE;
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}
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GstVdpOutputSrcPad *
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gst_vdp_output_src_pad_new (GstPadTemplate * templ, const gchar * name)
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{
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return g_object_new (GST_TYPE_VDP_OUTPUT_SRC_PAD, "name", name,
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"template", templ, "direction", GST_PAD_SRC, NULL);
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}
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static void
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gst_vdp_output_src_pad_update_caps (GstVdpOutputSrcPad * vdp_pad)
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{
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GstCaps *caps;
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const GstCaps *templ_caps;
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if (vdp_pad->caps)
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gst_caps_unref (vdp_pad->caps);
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caps = gst_vdp_output_buffer_get_allowed_caps (vdp_pad->device);
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if ((templ_caps = gst_pad_get_pad_template_caps (GST_PAD (vdp_pad)))) {
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vdp_pad->caps = gst_caps_intersect (caps, templ_caps);
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gst_caps_unref (caps);
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} else
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vdp_pad->caps = caps;
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}
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static void
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gst_vdp_output_src_pad_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) object;
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switch (prop_id) {
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case PROP_DEVICE:
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g_value_set_object (value, vdp_pad->device);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vdp_output_src_pad_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) object;
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switch (prop_id) {
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case PROP_DEVICE:
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if (vdp_pad->device)
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g_object_unref (vdp_pad->device);
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vdp_pad->device = g_value_dup_object (value);
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gst_vdp_output_src_pad_update_caps (vdp_pad);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vdp_output_src_pad_init (GstVdpOutputSrcPad * vdp_pad)
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{
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GstPad *pad = GST_PAD (vdp_pad);
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vdp_pad->caps = NULL;
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vdp_pad->output_caps = NULL;
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vdp_pad->bpool = NULL;
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vdp_pad->device = NULL;
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vdp_pad->lock_caps = FALSE;
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gst_pad_set_getcaps_function (pad,
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GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_getcaps));
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gst_pad_set_setcaps_function (pad,
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GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_setcaps));
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gst_pad_set_acceptcaps_function (pad,
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GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_acceptcaps));
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gst_pad_set_activatepush_function (pad,
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GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_activate_push));
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}
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static void
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gst_vdp_output_src_pad_class_init (GstVdpOutputSrcPadClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->get_property = gst_vdp_output_src_pad_get_property;
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object_class->set_property = gst_vdp_output_src_pad_set_property;
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/**
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* GstVdpVideoSrcPad:device:
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*
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* The #GstVdpDevice this pool is bound to.
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*/
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g_object_class_install_property
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(object_class,
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PROP_DEVICE,
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g_param_spec_object ("device",
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"Device",
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"The GstVdpDevice the pad should use",
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GST_TYPE_VDP_DEVICE, G_PARAM_READWRITE));
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}
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