--- /dev/null
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ * This file:
+ * Copyright (C) 2005 Luca Ognibene <luogni@tin.it>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#ifdef HAVE_FFMPEG_UNINSTALLED
+#include <avcodec.h>
+#else
+#include <ffmpeg/avcodec.h>
+#endif
+
+#include <gst/video/video.h>
+#include "gstffmpeg.h"
+#include "gstffmpegcodecmap.h"
+
+#define GST_TYPE_FFMPEGDEINTERLACE \
+ (gst_ffmpegdeinterlace_get_type())
+#define GST_FFMPEGDEINTERLACE(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGDEINTERLACE,GstFFMpegDeinterlace))
+#define GST_FFMPEGDEINTERLACE_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGDEINTERLACE,GstFFMpegDeinterlace))
+#define GST_IS_FFMPEGDEINTERLACE(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGDEINTERLACE))
+#define GST_IS_FFMPEGDEINTERLACE_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGDEINTERLACE))
+
+typedef struct _GstFFMpegDeinterlace GstFFMpegDeinterlace;
+typedef struct _GstFFMpegDeinterlaceClass GstFFMpegDeinterlaceClass;
+
+struct _GstFFMpegDeinterlace
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+
+ gint width, height;
+
+ enum PixelFormat pixfmt;
+ AVPicture from_frame, to_frame;
+ GstCaps *sinkcaps;
+
+ guint to_size;
+
+};
+
+struct _GstFFMpegDeinterlaceClass
+{
+ GstElementClass parent_class;
+};
+
+/* elementfactory information */
+static GstElementDetails ffmpegdeinterlace_details = {
+ "FFMPEG Deinterlace element",
+ "Filter/Converter/Video",
+ "Deinterlace video",
+ "Luca Ognibene <luogni@tin.it>",
+};
+
+/* Signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0,
+};
+
+static GstStaticPadTemplate gst_ffmpegdeinterlace_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
+ );
+
+static GstStaticPadTemplate gst_ffmpegdeinterlace_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
+ );
+
+
+static GType gst_ffmpegdeinterlace_get_type (void);
+
+static void gst_ffmpegdeinterlace_base_init (GstFFMpegDeinterlaceClass * klass);
+static void gst_ffmpegdeinterlace_class_init (GstFFMpegDeinterlaceClass * klass);
+static void gst_ffmpegdeinterlace_init (GstFFMpegDeinterlace * space);
+
+static void gst_ffmpegdeinterlace_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec);
+static void gst_ffmpegdeinterlace_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec);
+
+static GstPadLinkReturn
+gst_ffmpegdeinterlace_pad_link (GstPad * pad, const GstCaps * caps);
+
+static void gst_ffmpegdeinterlace_chain (GstPad * pad, GstData * data);
+static GstElementStateReturn gst_ffmpegdeinterlace_change_state (GstElement * element);
+
+static GstElementClass *parent_class = NULL;
+
+/*static guint gst_ffmpegdeinterlace_signals[LAST_SIGNAL] = { 0 }; */
+
+static GstCaps *
+gst_ffmpegdeinterlace_getcaps (GstPad * pad)
+{
+ GstFFMpegDeinterlace *filter;
+ GstCaps *othercaps;
+ GstCaps *caps;
+ GstPad *otherpad;
+ gint i;
+
+ filter = GST_FFMPEGDEINTERLACE (gst_pad_get_parent (pad));
+
+ otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
+
+ otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
+
+ return gst_pad_get_allowed_caps (otherpad);
+}
+
+static GstPadLinkReturn
+gst_ffmpegdeinterlace_pad_link (GstPad * pad, const GstCaps * caps)
+{
+ GstStructure *structure;
+ AVCodecContext *ctx;
+ GstFFMpegDeinterlace *deinterlace;
+ const GstCaps *othercaps;
+ GstPad *otherpad;
+ GstPadLinkReturn ret;
+ int height, width;
+
+ deinterlace = GST_FFMPEGDEINTERLACE (gst_pad_get_parent (pad));
+
+ otherpad = (pad == deinterlace->srcpad) ? deinterlace->sinkpad :
+ deinterlace->srcpad;
+
+ structure = gst_caps_get_structure (caps, 0);
+ ret = gst_structure_get_int (structure, "width", &width);
+ ret &= gst_structure_get_int (structure, "height", &height);
+
+ ctx = avcodec_alloc_context ();
+ ctx->width = width;
+ ctx->height = height;
+ ctx->pix_fmt = PIX_FMT_NB;
+ gst_ffmpeg_caps_with_codectype (CODEC_TYPE_VIDEO, caps, ctx);
+ if (ctx->pix_fmt == PIX_FMT_NB) {
+ av_free (ctx);
+
+ /* we disable ourself here */
+ return GST_PAD_LINK_REFUSED;
+ }
+
+ deinterlace->pixfmt = ctx->pix_fmt;
+ av_free (ctx);
+
+ ret = gst_pad_try_set_caps (otherpad, caps);
+ if (GST_PAD_LINK_FAILED (ret)) {
+ return ret;
+ }
+
+ deinterlace->width = width;
+ deinterlace->height = height;
+ deinterlace->to_size = avpicture_get_size (deinterlace->pixfmt,
+ deinterlace->width, deinterlace->height);
+ return GST_PAD_LINK_OK;
+}
+
+static GType
+gst_ffmpegdeinterlace_get_type (void)
+{
+ static GType ffmpegdeinterlace_type = 0;
+
+ if (!ffmpegdeinterlace_type) {
+ static const GTypeInfo ffmpegdeinterlace_info = {
+ sizeof (GstFFMpegDeinterlaceClass),
+ (GBaseInitFunc) gst_ffmpegdeinterlace_base_init,
+ NULL,
+ (GClassInitFunc) gst_ffmpegdeinterlace_class_init,
+ NULL,
+ NULL,
+ sizeof (GstFFMpegDeinterlace),
+ 0,
+ (GInstanceInitFunc) gst_ffmpegdeinterlace_init,
+ };
+
+ ffmpegdeinterlace_type = g_type_register_static (GST_TYPE_ELEMENT,
+ "GstFFMpegDeinterlace", &ffmpegdeinterlace_info, 0);
+ }
+
+ return ffmpegdeinterlace_type;
+}
+
+static void
+gst_ffmpegdeinterlace_base_init (GstFFMpegDeinterlaceClass * klass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ gst_element_class_set_details (element_class, &ffmpegdeinterlace_details);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_ffmpegdeinterlace_src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_ffmpegdeinterlace_sink_template));
+}
+
+static void
+gst_ffmpegdeinterlace_class_init (GstFFMpegDeinterlaceClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gobject_class->set_property = gst_ffmpegdeinterlace_set_property;
+ gobject_class->get_property = gst_ffmpegdeinterlace_get_property;
+
+ gstelement_class->change_state = gst_ffmpegdeinterlace_change_state;
+}
+
+static void
+gst_ffmpegdeinterlace_init (GstFFMpegDeinterlace * deinterlace)
+{
+ deinterlace->sinkpad = gst_pad_new_from_template (gst_static_pad_template_get
+ (&gst_ffmpegdeinterlace_sink_template),
+ "sink");
+ gst_pad_set_link_function (deinterlace->sinkpad, gst_ffmpegdeinterlace_pad_link);
+ gst_pad_set_getcaps_function (deinterlace->sinkpad, gst_ffmpegdeinterlace_getcaps);
+ gst_pad_set_chain_function (deinterlace->sinkpad, gst_ffmpegdeinterlace_chain);
+ gst_element_add_pad (GST_ELEMENT (deinterlace), deinterlace->sinkpad);
+
+ deinterlace->srcpad = gst_pad_new_from_template (gst_static_pad_template_get
+ (&gst_ffmpegdeinterlace_src_template),
+ "src");
+ gst_element_add_pad (GST_ELEMENT (deinterlace), deinterlace->srcpad);
+ gst_pad_set_link_function (deinterlace->srcpad, gst_ffmpegdeinterlace_pad_link);
+ gst_pad_set_getcaps_function (deinterlace->srcpad, gst_ffmpegdeinterlace_getcaps);
+
+ deinterlace->pixfmt = PIX_FMT_NB;
+}
+
+static void
+gst_ffmpegdeinterlace_chain (GstPad * pad, GstData * data)
+{
+ GstBuffer *inbuf = GST_BUFFER (data);
+ GstFFMpegDeinterlace *deinterlace;
+ GstBuffer *outbuf = NULL;
+
+ g_return_if_fail (pad != NULL);
+ g_return_if_fail (GST_IS_PAD (pad));
+ g_return_if_fail (inbuf != NULL);
+
+ deinterlace = GST_FFMPEGDEINTERLACE (gst_pad_get_parent (pad));
+
+ g_return_if_fail (deinterlace != NULL);
+ g_return_if_fail (GST_IS_FFMPEGDEINTERLACE (deinterlace));
+
+ if (!GST_PAD_IS_USABLE (deinterlace->srcpad)) {
+ gst_buffer_unref (inbuf);
+ return;
+ }
+
+ outbuf = gst_pad_alloc_buffer (deinterlace->srcpad,
+ GST_BUFFER_OFFSET_NONE, deinterlace->to_size);
+
+ gst_ffmpeg_avpicture_fill (&deinterlace->from_frame,
+ GST_BUFFER_DATA (inbuf),
+ deinterlace->pixfmt,
+ deinterlace->width, deinterlace->height);
+
+ gst_ffmpeg_avpicture_fill (&deinterlace->to_frame,
+ GST_BUFFER_DATA (outbuf),
+ deinterlace->pixfmt,
+ deinterlace->width, deinterlace->height);
+
+ avpicture_deinterlace (&deinterlace->to_frame, &deinterlace->from_frame,
+ deinterlace->pixfmt, deinterlace->width, deinterlace->height);
+
+ gst_buffer_unref (inbuf);
+ gst_pad_push (deinterlace->srcpad, GST_DATA (outbuf));
+
+}
+
+static GstElementStateReturn
+gst_ffmpegdeinterlace_change_state (GstElement * element)
+{
+ GstFFMpegDeinterlace *deinterlace;
+
+ deinterlace = GST_FFMPEGDEINTERLACE (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_READY_TO_NULL:
+ break;
+ }
+
+ if (parent_class->change_state)
+ return parent_class->change_state (element);
+
+ return GST_STATE_SUCCESS;
+}
+
+static void
+gst_ffmpegdeinterlace_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+ GstFFMpegDeinterlace *deinterlace;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_FFMPEGDEINTERLACE (object));
+ deinterlace = GST_FFMPEGDEINTERLACE (object);
+
+ switch (prop_id) {
+ default:
+ break;
+ }
+}
+
+static void
+gst_ffmpegdeinterlace_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec)
+{
+ GstFFMpegDeinterlace *deinterlace;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_FFMPEGDEINTERLACE (object));
+ deinterlace = GST_FFMPEGDEINTERLACE (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+gboolean
+gst_ffmpegdeinterlace_register (GstPlugin * plugin)
+{
+
+ return gst_element_register (plugin, "ffdeinterlace",
+ GST_RANK_NONE, GST_TYPE_FFMPEGDEINTERLACE);
+}
projects / platform / upstream / gstreamer.git / commitdiff