/* * Copyright (C) 2010 Ole André Vadla Ravnås <oravnas@cisco.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "corevideobuffer.h" G_DEFINE_TYPE (GstCoreVideoBuffer, gst_core_video_buffer, GST_TYPE_BUFFER); static void gst_core_video_buffer_init (GstCoreVideoBuffer * self) { GST_BUFFER_FLAG_SET (self, GST_BUFFER_FLAG_READONLY); } static void gst_core_video_buffer_finalize (GstMiniObject * mini_object) { GstCoreVideoBuffer *self = GST_CORE_VIDEO_BUFFER_CAST (mini_object); GstCVApi *cv = self->ctx->cv; if (self->pixbuf != NULL) { cv->CVPixelBufferUnlockBaseAddress (self->pixbuf, kCVPixelBufferLock_ReadOnly); } cv->CVBufferRelease (self->cvbuf); g_object_unref (self->ctx); GST_MINI_OBJECT_CLASS (gst_core_video_buffer_parent_class)->finalize (mini_object); } GstBuffer * gst_core_video_buffer_new (GstCoreMediaCtx * ctx, CVBufferRef cvbuf) { GstCVApi *cv = ctx->cv; void *data; size_t size; CVPixelBufferRef pixbuf = NULL; GstCoreVideoBuffer *buf; if (CFGetTypeID (cvbuf) == cv->CVPixelBufferGetTypeID ()) { pixbuf = (CVPixelBufferRef) cvbuf; if (cv->CVPixelBufferLockBaseAddress (pixbuf, kCVPixelBufferLock_ReadOnly) != kCVReturnSuccess) { goto error; } data = cv->CVPixelBufferGetBaseAddress (pixbuf); size = cv->CVPixelBufferGetBytesPerRow (pixbuf) * cv->CVPixelBufferGetHeight (pixbuf); } else { /* TODO: Do we need to handle other buffer types? */ goto error; } buf = GST_CORE_VIDEO_BUFFER_CAST (gst_mini_object_new (GST_TYPE_CORE_VIDEO_BUFFER)); buf->ctx = g_object_ref (ctx); buf->cvbuf = cv->CVBufferRetain (cvbuf); buf->pixbuf = pixbuf; GST_BUFFER_DATA (buf) = data; GST_BUFFER_SIZE (buf) = size; return GST_BUFFER_CAST (buf); error: return NULL; } static void gst_core_video_buffer_class_init (GstCoreVideoBufferClass * klass) { GstMiniObjectClass *miniobject_class = GST_MINI_OBJECT_CLASS (klass); miniobject_class->finalize = gst_core_video_buffer_finalize; }