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ext/ffmpeg/: Add ffdeinterlace element

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Original commit message from CVS:
* ext/ffmpeg/Makefile.am:
* ext/ffmpeg/gstffmpegdeinterlace.c:
* ext/ffmpeg/gstffmpeg.c (plugin_init):
Add ffdeinterlace element
* TODO:
yo, another thing removed from the TODO
This commit is contained in:
Luca Ognibene 2005-05-15 19:21:04 +00:00
parent 724361981f
commit a4cf1e11fc
5 changed files with 381 additions and 2 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2005-05-15 Luca Ognibene <luogni@tin.it>
* ext/ffmpeg/Makefile.am:
* ext/ffmpeg/gstffmpegdeinterlace.c:
* ext/ffmpeg/gstffmpeg.c (plugin_init):
Add ffdeinterlace element
* TODO:
yo, another thing removed from the TODO
2005-05-14 Luca Ognibene <luogni@tin.it>
* ext/ffmpeg/gstffmpegscale.c (gst_ffmpegscale_change_state):

2
TODO
View file

@ -9,7 +9,7 @@ The never-ending story of new features:
- correct caps sets on the pad templates
- event handling in the loop function (mux)
- prevent data copying
* ffdeinterlace and other filter elements
* other filter elements
* can we wrap URLProtocol as a source/sink?
If you have cool ideas, add them here or contact the mailinglist:

3
ext/ffmpeg/Makefile.am
View file

@ -9,7 +9,8 @@ libgstffmpeg_la_SOURCES = gstffmpeg.c \
gstffmpegmux.c \
gstffmpegprotocol.c \
gstffmpegcolorspace.c \
gstffmpegscale.c
gstffmpegscale.c \
gstffmpegdeinterlace.c
libgstffmpeg_la_CFLAGS = $(GST_CFLAGS) \
-I $(top_srcdir)/gst-libs/ext/ffmpeg/libavformat \

1
ext/ffmpeg/gstffmpeg.c
View file

@ -83,6 +83,7 @@ plugin_init (GstPlugin * plugin)
gst_ffmpegmux_register (plugin);
gst_ffmpegcsp_register (plugin);
gst_ffmpegscale_register (plugin);
gst_ffmpegdeinterlace_register (plugin);
register_protocol (&gstreamer_protocol);

368
ext/ffmpeg/gstffmpegdeinterlace.c Normal file
View file

@ -0,0 +1,368 @@
/* 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);
}