mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-01-26 09:08:14 +00:00
frei0r: Add support for frei0r source/generator plugins
This commit is contained in:
Sebastian Dröge
parent
41869062c6
commit
e3afdb0bd5
4 changed files with 482 additions and 2 deletions
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@ -2,7 +2,8 @@ plugin_LTLIBRARIES = libgstfrei0r.la
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libgstfrei0r_la_SOURCES = \
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gstfrei0r.c \
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gstfrei0rfilter.c
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gstfrei0rfilter.c \
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gstfrei0rsrc.c
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libgstfrei0r_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
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libgstfrei0r_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) \
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@ -10,4 +11,4 @@ libgstfrei0r_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) \
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libgstfrei0r_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstfrei0r_la_LIBTOOLFLAGS = --tag=disable-static
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noinst_HEADERS = gstfrei0r.h gstfrei0rfilter.h frei0r.h
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noinst_HEADERS = gstfrei0r.h gstfrei0rfilter.h gstfrei0rsrc.h frei0r.h
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@ -23,6 +23,7 @@
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#include "gstfrei0r.h"
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#include "gstfrei0rfilter.h"
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#include "gstfrei0rsrc.h"
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#include <string.h>
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@ -477,6 +478,8 @@ register_plugin (GstPlugin * plugin, const gchar * filename)
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ret = gst_frei0r_filter_register (plugin, &info, &ftable);
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break;
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case F0R_PLUGIN_TYPE_SOURCE:
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ret = gst_frei0r_src_register (plugin, &info, &ftable);
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break;
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case F0R_PLUGIN_TYPE_MIXER2:
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case F0R_PLUGIN_TYPE_MIXER3:
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GST_WARNING
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407
gst/frei0r/gstfrei0rsrc.c
Normal file
407
gst/frei0r/gstfrei0rsrc.c
Normal file
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@ -0,0 +1,407 @@
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/* GStreamer
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* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "gstfrei0r.h"
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#include "gstfrei0rsrc.h"
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typedef struct
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{
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f0r_plugin_info_t info;
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GstFrei0rFuncTable ftable;
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} GstFrei0rSrcClassData;
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static gboolean
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gst_frei0r_src_set_caps (GstBaseSrc * src, GstCaps * caps)
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{
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GstFrei0rSrc *self = GST_FREI0R_SRC (src);
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GstFrei0rSrcClass *klass = GST_FREI0R_SRC_GET_CLASS (src);
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if (!gst_video_format_parse_caps (caps, &self->fmt, &self->width,
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&self->height)
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|| !gst_video_parse_caps_framerate (caps, &self->fps_n, &self->fps_d))
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return FALSE;
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if (self->f0r_instance) {
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klass->ftable->destruct (self->f0r_instance);
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self->f0r_instance = NULL;
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}
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self->f0r_instance =
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gst_frei0r_instance_construct (klass->ftable, klass->properties,
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klass->n_properties, self->property_cache, self->width, self->height);
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return TRUE;
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}
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static GstFlowReturn
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gst_frei0r_src_create (GstPushSrc * src, GstBuffer ** buf)
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{
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GstFrei0rSrc *self = GST_FREI0R_SRC (src);
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GstFrei0rSrcClass *klass = GST_FREI0R_SRC_GET_CLASS (src);
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guint size, newsize;
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GstFlowReturn ret = GST_FLOW_OK;
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GstBuffer *outbuf = NULL;
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gdouble time;
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*buf = NULL;
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if (G_UNLIKELY (!self->f0r_instance))
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return GST_FLOW_NOT_NEGOTIATED;
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newsize = gst_video_format_get_size (self->fmt, self->width, self->height);
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ret =
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gst_pad_alloc_buffer_and_set_caps (GST_BASE_SRC_PAD (src),
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GST_BUFFER_OFFSET_NONE, newsize, GST_PAD_CAPS (GST_BASE_SRC_PAD (src)),
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&outbuf);
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if (ret != GST_FLOW_OK)
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return ret;
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/* Format might have changed */
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size = GST_BUFFER_SIZE (outbuf);
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newsize = gst_video_format_get_size (self->fmt, self->width, self->height);
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if (size != newsize) {
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gst_buffer_unref (outbuf);
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outbuf = gst_buffer_new_and_alloc (newsize);
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gst_buffer_set_caps (outbuf, GST_PAD_CAPS (GST_BASE_SRC_PAD (src)));
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}
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GST_BUFFER_TIMESTAMP (outbuf) =
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gst_util_uint64_scale (self->n_frames, GST_SECOND * self->fps_d,
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self->fps_n);
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GST_BUFFER_OFFSET (outbuf) = self->n_frames;
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self->n_frames++;
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GST_BUFFER_OFFSET_END (outbuf) = self->n_frames;
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GST_BUFFER_DURATION (outbuf) =
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gst_util_uint64_scale (self->n_frames, GST_SECOND * self->fps_d,
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self->fps_n) - GST_BUFFER_TIMESTAMP (outbuf);
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time = ((gdouble) GST_BUFFER_TIMESTAMP (outbuf)) / GST_SECOND;
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if (klass->ftable->update2)
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klass->ftable->update2 (self->f0r_instance, time, NULL, NULL, NULL,
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(guint32 *) GST_BUFFER_DATA (outbuf));
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else
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klass->ftable->update (self->f0r_instance, time, NULL,
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(guint32 *) GST_BUFFER_DATA (outbuf));
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*buf = outbuf;
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return GST_FLOW_OK;
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}
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static void
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gst_frei0r_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
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GstClockTime * start, GstClockTime * end)
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{
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/* for live sources, sync on the timestamp of the buffer */
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if (gst_base_src_is_live (basesrc)) {
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GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer);
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if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
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/* get duration to calculate end time */
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GstClockTime duration = GST_BUFFER_DURATION (buffer);
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if (GST_CLOCK_TIME_IS_VALID (duration)) {
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*end = timestamp + duration;
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}
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*start = timestamp;
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}
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} else {
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*start = -1;
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*end = -1;
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}
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}
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static gboolean
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gst_frei0r_src_start (GstBaseSrc * basesrc)
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{
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GstFrei0rSrc *self = GST_FREI0R_SRC (basesrc);
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self->n_frames = 0;
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return TRUE;
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}
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static gboolean
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gst_frei0r_src_is_seekable (GstBaseSrc * psrc)
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{
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return TRUE;
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}
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static gboolean
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gst_frei0r_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
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{
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GstClockTime time;
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GstFrei0rSrc *self = GST_FREI0R_SRC (bsrc);
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segment->time = segment->start;
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time = segment->last_stop;
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/* now move to the time indicated */
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if (self->fps_n) {
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self->n_frames = gst_util_uint64_scale (time,
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self->fps_n, self->fps_d * GST_SECOND);
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} else {
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self->n_frames = 0;
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}
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return TRUE;
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}
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static gboolean
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gst_frei0r_src_query (GstBaseSrc * bsrc, GstQuery * query)
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{
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gboolean res;
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GstFrei0rSrc *self = GST_FREI0R_SRC (bsrc);
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GstFrei0rSrcClass *klass = GST_FREI0R_SRC_GET_CLASS (self);
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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if (src_fmt == dest_fmt) {
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dest_val = src_val;
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goto done;
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}
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switch (src_fmt) {
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case GST_FORMAT_DEFAULT:
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switch (dest_fmt) {
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case GST_FORMAT_TIME:
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/* frames to time */
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if (self->fps_n) {
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dest_val = gst_util_uint64_scale (src_val,
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self->fps_d * GST_SECOND, self->fps_n);
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} else {
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dest_val = 0;
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}
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break;
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default:
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goto error;
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}
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break;
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case GST_FORMAT_TIME:
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switch (dest_fmt) {
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case GST_FORMAT_DEFAULT:
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/* time to frames */
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if (self->fps_n) {
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dest_val = gst_util_uint64_scale (src_val,
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self->fps_n, self->fps_d * GST_SECOND);
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} else {
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dest_val = 0;
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}
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break;
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default:
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goto error;
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}
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break;
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default:
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goto error;
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}
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done:
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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res = TRUE;
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break;
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}
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default:
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res =
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GST_BASE_SRC_CLASS (g_type_class_peek_parent (klass))->query (bsrc,
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query);
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}
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return res;
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/* ERROR */
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error:
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{
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GST_DEBUG_OBJECT (self, "query failed");
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return FALSE;
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}
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}
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static void
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gst_frei0r_src_src_fixate (GstPad * pad, GstCaps * caps)
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{
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GstStructure *structure;
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_fixate_field_nearest_int (structure, "width", 320);
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gst_structure_fixate_field_nearest_int (structure, "height", 240);
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gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
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}
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static void
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gst_frei0r_src_finalize (GObject * object)
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{
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GstFrei0rSrc *self = GST_FREI0R_SRC (object);
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GstFrei0rSrcClass *klass = GST_FREI0R_SRC_GET_CLASS (object);
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if (self->f0r_instance) {
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klass->ftable->destruct (self->f0r_instance);
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self->f0r_instance = NULL;
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}
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if (self->property_cache)
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gst_frei0r_property_cache_free (klass->properties, self->property_cache,
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klass->n_properties);
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self->property_cache = NULL;
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G_OBJECT_CLASS (g_type_class_peek_parent (klass))->finalize (object);
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}
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static void
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gst_frei0r_src_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstFrei0rSrc *self = GST_FREI0R_SRC (object);
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GstFrei0rSrcClass *klass = GST_FREI0R_SRC_GET_CLASS (object);
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if (!gst_frei0r_get_property (self->f0r_instance, klass->ftable,
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klass->properties, klass->n_properties, self->property_cache, prop_id,
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value))
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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static void
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gst_frei0r_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstFrei0rSrc *self = GST_FREI0R_SRC (object);
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GstFrei0rSrcClass *klass = GST_FREI0R_SRC_GET_CLASS (object);
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if (!gst_frei0r_set_property (self->f0r_instance, klass->ftable,
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klass->properties, klass->n_properties, self->property_cache, prop_id,
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value))
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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static void
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gst_frei0r_src_class_init (GstFrei0rSrcClass * klass,
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GstFrei0rSrcClassData * class_data)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstElementClass *gstelement_class = (GstElementClass *) klass;
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GstPushSrcClass *gstpushsrc_class = (GstPushSrcClass *) klass;
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GstBaseSrcClass *gstbasesrc_class = (GstBaseSrcClass *) klass;
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GstPadTemplate *templ;
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GstCaps *caps;
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gchar *author;
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klass->ftable = &class_data->ftable;
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klass->info = &class_data->info;
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gobject_class->finalize = gst_frei0r_src_finalize;
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gobject_class->set_property = gst_frei0r_src_set_property;
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gobject_class->get_property = gst_frei0r_src_get_property;
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klass->n_properties = klass->info->num_params;
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klass->properties = g_new0 (GstFrei0rProperty, klass->n_properties);
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gst_frei0r_klass_install_properties (gobject_class, klass->ftable,
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klass->properties, klass->n_properties);
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author =
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g_strdup_printf
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("Sebastian Dröge <sebastian.droege@collabora.co.uk>, %s",
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class_data->info.author);
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gst_element_class_set_details_simple (gstelement_class, class_data->info.name,
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"Src/Video", class_data->info.explanation, author);
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g_free (author);
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caps = gst_frei0r_caps_from_color_model (class_data->info.color_model);
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templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
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gst_element_class_add_pad_template (gstelement_class, templ);
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gstbasesrc_class->set_caps = gst_frei0r_src_set_caps;
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gstbasesrc_class->is_seekable = gst_frei0r_src_is_seekable;
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gstbasesrc_class->do_seek = gst_frei0r_src_do_seek;
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gstbasesrc_class->query = gst_frei0r_src_query;
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gstbasesrc_class->get_times = gst_frei0r_src_get_times;
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gstbasesrc_class->start = gst_frei0r_src_start;
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gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_frei0r_src_create);
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}
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static void
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gst_frei0r_src_init (GstFrei0rSrc * self, GstFrei0rSrcClass * klass)
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{
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GstPad *pad = GST_BASE_SRC_PAD (self);
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self->property_cache =
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gst_frei0r_property_cache_init (klass->properties, klass->n_properties);
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gst_pad_set_fixatecaps_function (pad, gst_frei0r_src_src_fixate);
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gst_base_src_set_format (GST_BASE_SRC_CAST (self), GST_FORMAT_TIME);
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}
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gboolean
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gst_frei0r_src_register (GstPlugin * plugin, const f0r_plugin_info_t * info,
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const GstFrei0rFuncTable * ftable)
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{
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GTypeInfo typeinfo = {
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sizeof (GstFrei0rSrcClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_frei0r_src_class_init,
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NULL,
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NULL,
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sizeof (GstFrei0rSrc),
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0,
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(GInstanceInitFunc) gst_frei0r_src_init
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};
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GType type;
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gchar *type_name, *tmp;
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GstFrei0rSrcClassData *class_data;
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tmp = g_strdup_printf ("frei0r-%s", info->name);
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type_name = g_ascii_strdown (tmp, -1);
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g_free (tmp);
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g_strcanon (type_name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-+", '-');
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if (g_type_from_name (type_name)) {
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||||
GST_WARNING ("Type '%s' already exists", type_name);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (!ftable->init ()) {
|
||||
GST_ERROR ("Initializing plugin failed");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
class_data = g_new0 (GstFrei0rSrcClassData, 1);
|
||||
memcpy (&class_data->info, info, sizeof (f0r_plugin_info_t));
|
||||
memcpy (&class_data->ftable, ftable, sizeof (GstFrei0rFuncTable));
|
||||
typeinfo.class_data = class_data;
|
||||
|
||||
type = g_type_register_static (GST_TYPE_PUSH_SRC, type_name, &typeinfo, 0);
|
||||
return (gst_element_register (plugin, type_name, GST_RANK_NONE, type));
|
||||
}
|
||||
69
gst/frei0r/gstfrei0rsrc.h
Normal file
69
gst/frei0r/gstfrei0rsrc.h
Normal file
|
|
@ -0,0 +1,69 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef __GST_FREI0R_SRC_H__
|
||||
#define __GST_FREI0R_SRC_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/video/video.h>
|
||||
#include <gst/base/gstpushsrc.h>
|
||||
|
||||
#include "frei0r.h"
|
||||
#include "gstfrei0r.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_FREI0R_SRC(obj) \
|
||||
((GstFrei0rSrc *) obj)
|
||||
#define GST_FREI0R_SRC_CLASS(klass) \
|
||||
((GstFrei0rSrcClass *) klass)
|
||||
#define GST_FREI0R_SRC_GET_CLASS(obj) \
|
||||
((GstFrei0rSrcClass *) g_type_class_peek (G_TYPE_FROM_INSTANCE (obj)))
|
||||
|
||||
typedef struct _GstFrei0rSrc GstFrei0rSrc;
|
||||
typedef struct _GstFrei0rSrcClass GstFrei0rSrcClass;
|
||||
|
||||
struct _GstFrei0rSrc {
|
||||
GstPushSrc parent;
|
||||
|
||||
f0r_instance_t *f0r_instance;
|
||||
GstFrei0rPropertyValue *property_cache;
|
||||
|
||||
GstVideoFormat fmt;
|
||||
gint width, height;
|
||||
gint fps_n, fps_d;
|
||||
|
||||
guint64 n_frames;
|
||||
};
|
||||
|
||||
struct _GstFrei0rSrcClass {
|
||||
GstPushSrcClass parent;
|
||||
|
||||
f0r_plugin_info_t *info;
|
||||
GstFrei0rFuncTable *ftable;
|
||||
|
||||
GstFrei0rProperty *properties;
|
||||
gint n_properties;
|
||||
};
|
||||
|
||||
gboolean gst_frei0r_src_register (GstPlugin *plugin, const f0r_plugin_info_t *info, const GstFrei0rFuncTable *ftable);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_FREI0R_SRC_H__ */
|
||||
Loading…
Reference in a new issue