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gstreamer/ext/libpostproc/gstpostproc.c
Thomas Vander Stichele 9783a9207a expand tabs 
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2005-12-06 19:57:08 +00:00

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/*
Copyright (C) 2005 Edward Hervey (edward@fluendo.com)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; 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>
#include <gst/gstcpu.h>
#include <gst/video/video.h>
#ifdef HAVE_FFMPEG_UNINSTALLED
#include <avcodec.h>
#include <libpostproc/postprocess.h>
#else
#include <ffmpeg/avcodec.h>
#include <ffmpeg/libpostproc/postprocess.h>
#endif
#include "gstpostproc.h"
typedef struct _PostProcDetails PostProcDetails;
struct _PostProcDetails {
char *shortname;
char *longname;
char *description;
};
static PostProcDetails filterdetails[] = {
{"hb", "hdeblock", "horizontal deblocking filter"},
{"vb", "vdeblock", "vertical deblocking filter"},
{"h1", "x1hdeblock", "experimental horizontal deblocking filter 1"},
{"v1", "x1vdeblock", "experimental vertical deblocking filter 1"},
{"ha", "ahdeblock", "another horizontal deblocking filter"},
{"va", "avdeblock", "another vertical deblocking filter"},
{"dr", "dering", "deringing filter"},
{"al", "autolevels", "automatic brightness/contrast filter"},
{"lb", "linblenddeint", "linear blend interpolater"},
{"li", "linipoldeint", "linear interpolation deinterlacer"},
{"ci", "cubicipoldeint", "cubic interpolation deinterlacer"},
{"md", "mediandeint", "median deinterlacer"},
{"fd", "ffmpegdeint", "ffmpeg deinterlacer"},
{"l5", "lowpass5", "FIR lowpass deinterlacer"},
{"tn", "tmpnoise", "temporal noise reducer"},
{"fq", "forcequant", "force quantizer"},
{"de", "default", "default filters"},
{NULL, NULL, NULL}
};
typedef struct _GstPostProc GstPostProc;
struct _GstPostProc {
GstElement element;
GstPad *sinkpad, *srcpad;
guint quality;
gint width, height;
gint ystride, ustride, vstride;
gint ysize, usize, vsize;
pp_mode_t *mode;
pp_context_t *context;
};
typedef struct _GstPostProcClass GstPostProcClass;
struct _GstPostProcClass {
GstElementClass parent_class;
gint filterid;
};
enum {
ARG_0,
ARG_QUALITY
};
/* hashtable, key = gtype, value = filterdetails index */
static GHashTable *global_plugins;
/* TODO : add support for the other format supported by libpostproc */
static GstStaticPadTemplate gst_postproc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV("I420"))
);
static GstStaticPadTemplate gst_postproc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV("I420"))
);
GST_DEBUG_CATEGORY (postproc_debug);
#define GST_CAT_DEFAULT postproc_debug
static void gst_postproc_class_init (GstPostProcClass * klass);
static void gst_postproc_base_init (GstPostProcClass * klass);
static void gst_postproc_init (GstPostProc * pproc);
static void gst_postproc_dispose (GObject * object);
static GstPadLinkReturn gst_postproc_link (GstPad * pad, const GstCaps * caps);
static void gst_postproc_chain (GstPad * pad, GstData * data);
static GstStateChangeReturn gst_postproc_change_state (GstElement * element,
GstStateChange transition);
static void gst_postproc_set_property ( GObject * object, guint prop_id,
const GValue * value,
GParamSpec *pspec );
static void gst_postproc_get_property ( GObject * object, guint prop_id,
GValue * value, GParamSpec *pspec );
static GstElementClass *parent_class = NULL;
#ifndef GST_DISABLE_GST_DEBUG
static void
gst_ffmpeg_log_callback (void * ptr, int level, const char * fmt, va_list vl)
{
GstDebugLevel gst_level;
switch (level) {
case AV_LOG_QUIET:
gst_level = GST_LEVEL_NONE;
break;
case AV_LOG_ERROR:
gst_level = GST_LEVEL_ERROR;
break;
case AV_LOG_INFO:
gst_level = GST_LEVEL_INFO;
break;
case AV_LOG_DEBUG:
gst_level = GST_LEVEL_DEBUG;
break;
default:
gst_level = GST_LEVEL_INFO;
break;
}
gst_debug_log_valist (postproc_debug, gst_level, "", "", 0, NULL, fmt, vl);
}
#endif
#define ROUND_UP_2(x) (((x)+1)&~1)
#define ROUND_UP_4(x) (((x)+3)&~3)
#define ROUND_UP_8(x) (((x)+7)&~7)
static void
change_context ( GstPostProc * postproc , gint width, gint height )
{
GstCPUFlags flags;
int ppflags;
/*
TODO : We need to find out what CPU flags we have in order to set
MMX/MMX2/3DNOW optimizations
*/
GST_DEBUG ("change_context, width:%d, height:%d",
width, height);
if ((width != postproc->width) && (height != postproc->height)) {
if (postproc->context)
pp_free_context (postproc->context);
flags = gst_cpu_get_flags();
ppflags = (flags & GST_CPU_FLAG_MMX ? PP_CPU_CAPS_MMX : 0)
| (flags & GST_CPU_FLAG_MMXEXT ? PP_CPU_CAPS_MMX2 : 0)
| (flags & GST_CPU_FLAG_3DNOW ? PP_CPU_CAPS_3DNOW : 0);
postproc->context = pp_get_context (width, height, PP_FORMAT_420 | ppflags);
postproc->width = width;
postproc->height = height;
postproc->ystride = ROUND_UP_4 (width);
postproc->ustride = ROUND_UP_8 (width) / 2;
postproc->vstride = ROUND_UP_8 (postproc->ystride) / 2;
postproc->ysize = postproc->ystride * ROUND_UP_2 (height);
postproc->usize = postproc->ustride * ROUND_UP_2 (height) / 2;
postproc->vsize = postproc->vstride * ROUND_UP_2 (height) / 2;
GST_DEBUG ("new strides are (YUV) : %d %d %d",
postproc->ystride, postproc->ustride, postproc->vstride);
}
}
static void
change_mode ( GstPostProc * postproc )
{
GstPostProcClass * klass = (GstPostProcClass *) G_OBJECT_GET_CLASS (G_OBJECT (postproc));
if (postproc->mode)
pp_free_mode (postproc->mode);
postproc->mode = pp_get_mode_by_name_and_quality (filterdetails[klass->filterid].shortname,
postproc->quality);
}
static void
gst_postproc_base_init ( GstPostProcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstElementDetails details;
gint ppidx;
ppidx = GPOINTER_TO_INT (g_hash_table_lookup (global_plugins,
GINT_TO_POINTER (G_OBJECT_CLASS_TYPE (gobject_class))));
details.longname = g_strdup_printf ("LibPostProc %s filter", filterdetails[ppidx].longname);
details.klass = "Filter/Video";
details.description = g_strdup_printf ("LibPostProc %s", filterdetails[ppidx].description);
details.author = "Edward Hervey <edward@fluendo.com>";
gst_element_class_set_details (element_class, &details);
g_free(details.longname);
g_free(details.description);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_postproc_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_postproc_sink_template));
klass->filterid = ppidx;
}
static void
gst_postproc_class_init (GstPostProcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
g_object_class_install_property (gobject_class, ARG_QUALITY,
g_param_spec_uint ("quality", "Quality",
"Quality level of filter (6:best)",
0, 6, 6, G_PARAM_READWRITE));
gobject_class->dispose = gst_postproc_dispose;
gobject_class->set_property = gst_postproc_set_property;
gobject_class->get_property = gst_postproc_get_property;
gstelement_class->change_state = gst_postproc_change_state;
}
static void
gst_postproc_init (GstPostProc * postproc)
{
GST_FLAG_SET (postproc, GST_ELEMENT_WORK_IN_PLACE);
postproc->sinkpad = gst_pad_new_from_template (gst_static_pad_template_get
(&gst_postproc_sink_template),
"sink");
gst_pad_set_link_function (postproc->sinkpad, gst_postproc_link);
gst_pad_set_chain_function (postproc->sinkpad, gst_postproc_chain);
gst_element_add_pad (GST_ELEMENT (postproc), postproc->sinkpad);
postproc->srcpad = gst_pad_new_from_template (gst_static_pad_template_get
(&gst_postproc_src_template),
"src");
gst_element_add_pad (GST_ELEMENT (postproc), postproc->srcpad);
postproc->quality = 6;
postproc->mode = NULL;
change_mode (postproc);
postproc->context = NULL;
postproc->width = 0;
postproc->height = 0;
postproc->ystride = 0;
postproc->ustride = 0;
postproc->vstride = 0;
postproc->ysize = 0;
postproc->usize = 0;
postproc->vsize = 0;
}
static void
gst_postproc_dispose (GObject * object)
{
GstPostProc * postproc = (GstPostProc *) object;
G_OBJECT_CLASS (parent_class)->dispose (object);
if (postproc->mode)
pp_free_mode(postproc->mode);
if (postproc->context)
pp_free_context(postproc->context);
}
static GstPadLinkReturn
gst_postproc_link (GstPad * pad, const GstCaps * caps)
{
GstPostProc *postproc;
GstStructure *structure;
GstPad *otherpad;
gboolean res;
GstPadLinkReturn ret;
gint width, height;
/* create/replace pp_context here */
postproc = (GstPostProc *) gst_pad_get_parent (pad);
otherpad = (pad == postproc->sinkpad) ? postproc->srcpad : postproc->sinkpad;
structure = gst_caps_get_structure (caps, 0);
res = gst_structure_get_int (structure, "width", &width);
res &= gst_structure_get_int (structure, "height", &height);
if (!res)
return GST_PAD_LINK_REFUSED;
ret = gst_pad_try_set_caps (otherpad, caps);
if (GST_PAD_LINK_FAILED (ret))
return ret;
change_context (postproc, width, height);
return GST_PAD_LINK_OK;
}
static void
gst_postproc_chain (GstPad * pad, GstData * data)
{
GstPostProc *postproc;
GstBuffer *in, *out;
int stride[3];
unsigned char * outplane[3];
GST_DEBUG("chaining");
/* postprocess the buffer !*/
postproc = (GstPostProc *) gst_pad_get_parent (pad);
g_return_if_fail(GST_IS_BUFFER (data));
g_return_if_fail(postproc->mode != NULL);
g_return_if_fail(postproc->context != NULL);
in = GST_BUFFER (data);
out = gst_buffer_copy_on_write (in);
stride[0] = postproc->ystride;
stride[1] = postproc->ustride;
stride[2] = postproc->vstride;
/* inplane[0] = GST_BUFFER_DATA(in); */
/* inplane[1] = inplane[0] + postproc->ysize; */
/* inplane[2] = inplane[1] + postproc->usize; */
outplane[0] = GST_BUFFER_DATA(out);
outplane[1] = outplane[0] + postproc->ysize;
outplane[2] = outplane[1] + postproc->usize;
GST_DEBUG ("calling pp_postprocess, width:%d, height:%d",
postproc->width, postproc->height);
pp_postprocess (outplane, stride,
outplane, stride,
postproc->width,
postproc->height,
"", 0,
postproc->mode, postproc->context, 1);
gst_buffer_stamp (out, in);
gst_pad_push (postproc->srcpad, GST_DATA (out));
/*
void pp_postprocess(uint8_t * src[3], int srcStride[3],
uint8_t * dst[3], int dstStride[3],
int horizontalSize, int verticalSize,
QP_STORE_T *QP_store, int QP_stride,
pp_mode_t *mode, pp_context_t *ppContext, int pict_type);
src is the src buffer data
srcStride is ->ystride, ->ustride, ->vstride
dst same as src
dstStride same as srcStride
horizontalSize and VerticalsSize are obvious
QP_store can be null and qp_stride too
mode = mode
context = context
pict_type = 0
*/
}
static GstStateChangeReturn
gst_postproc_change_state (GstElement * element, GstStateChange transition)
{
GstPostProc *postproc = (GstPostProc *) element;
/* don't go to play if we don't have mode and context */
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
if ((!postproc->mode) && (!postproc->context))
return GST_STATE_CHANGE_FAILURE;
}
if (parent_class->change_state)
return parent_class->change_state (element, transition);
return GST_STATE_CHANGE_SUCCESS;
}
static void
gst_postproc_set_property ( GObject * object, guint prop_id,
const GValue * value,
GParamSpec *pspec )
{
GstPostProc *postproc = (GstPostProc *) object;
gint quality;
switch (prop_id) {
case ARG_QUALITY:
quality = g_value_get_uint (value);
if (quality != postproc->quality) {
postproc->quality = quality;
change_mode (postproc);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gst_postproc_get_property ( GObject * object, guint prop_id,
GValue * value, GParamSpec *pspec )
{
GstPostProc *postproc = (GstPostProc *) object;
switch (prop_id) {
case ARG_QUALITY:
g_value_set_uint (value, postproc->quality);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
gboolean
gst_postproc_register(GstPlugin * plugin)
{
GTypeInfo typeinfo = {
sizeof (GstPostProcClass),
(GBaseInitFunc) gst_postproc_base_init,
NULL,
(GClassInitFunc) gst_postproc_class_init,
NULL,
NULL,
sizeof (GstPostProc),
0,
(GInstanceInitFunc) gst_postproc_init,
};
GType type;
int i;
global_plugins = g_hash_table_new (NULL, NULL);
for (i = 0; filterdetails[i].shortname; i++) {
gchar *type_name;
g_hash_table_insert (global_plugins,
GINT_TO_POINTER (0),
GINT_TO_POINTER (i));
/* create type_name */
type_name = g_strdup_printf("postproc_%s", filterdetails[i].longname);
if (g_type_from_name (type_name)) {
g_free (type_name);
continue;
}
/* create gtype */
type = g_type_register_static (GST_TYPE_ELEMENT, type_name, &typeinfo, 0);
g_hash_table_insert (global_plugins,
GINT_TO_POINTER (type),
GINT_TO_POINTER (i));
/* register element */
if (!gst_element_register (plugin, type_name, GST_RANK_PRIMARY, type)) {
g_free(type_name);
return FALSE;
}
g_free(type_name);
}
g_hash_table_remove (global_plugins, GINT_TO_POINTER (0));
return TRUE;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (postproc_debug, "postproc", 0, "video postprocessing elements");
#ifndef GST_DISABLE_GST_DEBUG
av_log_set_callback (gst_ffmpeg_log_callback);
#endif
/* Register the filters */
gst_postproc_register( plugin );
/* Now we can return the pointer to the newly created Plugin object. */
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"postproc",
"postprocessing elements",
plugin_init,
FFMPEG_VERSION, "GPL", "FFMpeg", "http://ffmpeg.sourceforge.net/")
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