mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-07-04 05:35:53 +00:00
Code Issues 1 Projects Releases Wiki Activity

Add camerabin element.

Browse source
This commit is contained in:
Nokia Corporation 2009-02-05 15:48:32 +02:00 committed by René Stadler
parent f081d3e7b6
commit 3751eaeb79
17 changed files with 5393 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
configure.ac
View file

@ -239,6 +239,7 @@ dnl these are all the gst plug-ins, compilable without additional libs
AG_GST_CHECK_PLUGIN(aacparse)
AG_GST_CHECK_PLUGIN(aiffparse)
AG_GST_CHECK_PLUGIN(amrparse)
AG_GST_CHECK_PLUGIN(camerabin)
AG_GST_CHECK_PLUGIN(legacyresample)
AG_GST_CHECK_PLUGIN(bayer)
AG_GST_CHECK_PLUGIN(cdxaparse)
@ -1412,6 +1413,7 @@ gst/aiffparse/Makefile
gst/amrparse/Makefile
gst/legacyresample/Makefile
gst/bayer/Makefile
gst/camerabin/Makefile
gst/cdxaparse/Makefile
gst/dccp/Makefile
gst/deinterlace/Makefile

46
gst/camerabin/Makefile.am Normal file
View file

@ -0,0 +1,46 @@
glib_enum_prefix = gst_camerabin
include $(top_srcdir)/common/glib-gen.mak
built_sources = gstcamerabin-marshal.c
built_headers = gstcamerabin-marshal.h
BUILT_SOURCES = $(built_sources) $(built_headers)
CLEANFILES = $(BUILT_SOURCES)
EXTRA_DIST = gstcamerabin-marshal.list
plugin_LTLIBRARIES = libgstcamerabin.la
libgstcamerabin_la_SOURCES = gstcamerabin.c \
gstcamerabinxoverlay.c \
gstcamerabincolorbalance.c \
camerabinimage.c \
camerabinvideo.c \
camerabingeneral.c \
gstcamerabinphotography.c
nodist_libgstcamerabin_la_SOURCES = $(built_sources)
# libcamerabin_ladir = $(includedir)/gstreamer-@GST_MAJORMINOR@/camerabin
# libcamerabin_la_HEADERS = gstcamerabin.h
libgstcamerabin_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS)
libgstcamerabin_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) \
-lgstinterfaces-$(GST_MAJORMINOR) \
$(top_builddir)/gst-libs/gst/interfaces/libgstphotography-$(GST_MAJORMINOR).la
libgstcamerabin_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstcamerabin__la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = gstcamerabin.h \
gstcamerabinxoverlay.h \
gstcamerabincolorbalance.h \
camerabinimage.h \
camerabinvideo.h \
camerabingeneral.h \
gstcamerabinphotography.h \
$(built_headers)

262
gst/camerabin/camerabingeneral.c Normal file
View file

@ -0,0 +1,262 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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.
*/
/**
* SECTION:camerabingeneral
* @short_description: helper functions for #GstCameraBin and it's modules
*
* Common helper functions for #GstCameraBin, #GstCameraBinImage and
* #GstCameraBinVideo.
*
*/
#include "camerabingeneral.h"
#include <glib.h>
GST_DEBUG_CATEGORY (gst_camerabin_debug);
static gboolean
camerabin_general_dbg_have_event (GstPad * pad, GstEvent * event,
gpointer u_data)
{
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
{
GstElement *elem = (GstElement *) u_data;
gchar *elem_name = gst_element_get_name (elem);
gchar *pad_name = gst_pad_get_name (pad);
gboolean update;
gdouble rate;
GstFormat format;
gint64 start, stop, pos;
gst_event_parse_new_segment (event, &update, &rate, &format, &start,
&stop, &pos);
GST_DEBUG ("element %s, pad %s, new_seg_start =%" GST_TIME_FORMAT
", new_seg_stop =%" GST_TIME_FORMAT
", new_seg_pos =%" GST_TIME_FORMAT "\n", elem_name, pad_name,
GST_TIME_ARGS (start), GST_TIME_ARGS (stop), GST_TIME_ARGS (pos));
g_free (pad_name);
g_free (elem_name);
}
break;
default:
break;
}
return TRUE;
}
static gboolean
camerabin_general_dbg_have_buffer (GstPad * pad, GstBuffer * buffer,
gpointer u_data)
{
GstElement *elem = (GstElement *) u_data;
gchar *elem_name = gst_element_get_name (elem);
gchar *pad_name = gst_pad_get_name (pad);
GST_DEBUG ("element %s, pad %s, buf_ts =%" GST_TIME_FORMAT "\n", elem_name,
pad_name, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
g_free (pad_name);
g_free (elem_name);
return TRUE;
}
void
camerabin_general_dbg_set_probe (GstElement * elem, gchar * pad_name,
gboolean buf, gboolean evt)
{
GstPad *pad = gst_element_get_static_pad (elem, pad_name);
if (buf)
gst_pad_add_buffer_probe (pad,
G_CALLBACK (camerabin_general_dbg_have_buffer), elem);
if (evt)
gst_pad_add_event_probe (pad,
G_CALLBACK (camerabin_general_dbg_have_event), elem);
gst_object_unref (pad);
}
/**
* gst_camerabin_add_element:
* @bin: add an element to this bin
* @new_elem: new element to be added
*
* Adds given element to given @bin. Looks for an unconnected src pad
* from the @bin and links the element to it. Raises an error if adding
* or linking failed.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise.
*/
gboolean
gst_camerabin_add_element (GstBin * bin, GstElement * new_elem)
{
gboolean ret = FALSE;
ret = gst_camerabin_try_add_element (bin, new_elem);
if (!ret) {
gchar *elem_name = gst_element_get_name (new_elem);
GST_ELEMENT_ERROR (bin, CORE, NEGOTIATION, (NULL),
("linking %s failed", elem_name));
g_free (elem_name);
}
return ret;
}
/**
* gst_camerabin_try_add_element:
* @bin: tries adding an element to this bin
* @new_elem: new element to be added
*
* Adds given element to given @bin. Looks for an unconnected src pad
* from the @bin and links the element to it.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise.
*/
gboolean
gst_camerabin_try_add_element (GstBin * bin, GstElement * new_elem)
{
GstPad *bin_pad;
GstElement *bin_elem;
gboolean ret = TRUE;
if (!bin || !new_elem) {
return FALSE;
}
/* Get pads for linking */
GST_DEBUG ("finding unconnected src pad");
bin_pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SRC);
GST_DEBUG ("unconnected pad %s:%s", GST_DEBUG_PAD_NAME (bin_pad));
/* Add to bin */
gst_bin_add (GST_BIN (bin), new_elem);
/* Link, if unconnected pad was found, otherwise just add it to bin */
if (bin_pad) {
bin_elem = gst_pad_get_parent_element (bin_pad);
gst_object_unref (bin_pad);
if (!gst_element_link (bin_elem, new_elem)) {
gst_bin_remove (bin, new_elem);
ret = FALSE;
}
gst_object_unref (bin_elem);
}
return ret;
}
/**
* gst_camerabin_create_and_add_element:
* @bin: tries adding an element to this bin
* @elem_name: name of the element to be created
*
* Creates an element according to given name and
* adds it to given @bin. Looks for an unconnected src pad
* from the @bin and links the element to it.
*
* Returns: pointer to the new element if successful, NULL otherwise.
*/
GstElement *
gst_camerabin_create_and_add_element (GstBin * bin, const gchar * elem_name)
{
GstElement *new_elem = NULL;
GST_DEBUG ("adding %s", elem_name);
new_elem = gst_element_factory_make (elem_name, NULL);
if (!new_elem) {
GST_ELEMENT_ERROR (bin, CORE, MISSING_PLUGIN, (NULL),
("could not create \"%s\" element.", elem_name));
} else if (!gst_camerabin_add_element (bin, new_elem)) {
new_elem = NULL;
}
return new_elem;
}
/**
* gst_camerabin_remove_elements_from_bin:
* @bin: removes all elements from this bin
*
* Removes all elements from this @bin.
*/
void
gst_camerabin_remove_elements_from_bin (GstBin * bin)
{
GstIterator *iter = NULL;
gpointer data = NULL;
GstElement *elem = NULL;
gboolean done = FALSE;
iter = gst_bin_iterate_elements (bin);
while (!done) {
switch (gst_iterator_next (iter, &data)) {
case GST_ITERATOR_OK:
elem = GST_ELEMENT (data);
gst_bin_remove (bin, elem);
/* Iterator increased the element refcount, so unref */
gst_object_unref (elem);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
GST_WARNING_OBJECT (bin, "error in iterating elements");
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (iter);
}
/**
* gst_camerabin_drop_eos_probe:
* @pad: pad receiving the event
* @event: received event
* @u_data: not used
*
* Event probe that drop all eos events.
*
* Returns: FALSE to drop the event, TRUE otherwise
*/
gboolean
gst_camerabin_drop_eos_probe (GstPad * pad, GstEvent * event, gpointer u_data)
{
gboolean ret = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
GST_DEBUG ("dropping eos in %s:%s", GST_DEBUG_PAD_NAME (pad));
ret = FALSE;
break;
default:
break;
}
return ret;
}

62
gst/camerabin/camerabingeneral.h Normal file
View file

@ -0,0 +1,62 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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 __CAMERABIN_GENERAL_H_
#define __CAMERABIN_GENERAL_H_
#include <sys/time.h>
#include <time.h>
#include <gst/gst.h>
typedef struct timeval TIME_TYPE;
#define GET_TIME(t) do { gettimeofday(&(t), NULL); } while(0)
#define DIFF_TIME(t2,t1,d) do { d = ((t2).tv_sec - (t1).tv_sec) * 1000000 + \
(t2).tv_usec - (t1).tv_usec; } while(0)
#define _INIT_TIMER_BLOCK TIME_TYPE t1, t2; guint32 d; do {;}while (0)
#define _OPEN_TIMER_BLOCK { GET_TIME(t1); do {;}while (0)
#define _CLOSE_TIMER_BLOCK GET_TIME(t2); DIFF_TIME(t2,t1,d); \
GST_DEBUG("elapsed time = %u\n", d); \
} do {;}while (0)
extern void
camerabin_general_dbg_set_probe (GstElement * elem, gchar * pad_name,
gboolean buf, gboolean evt);
gboolean gst_camerabin_try_add_element (GstBin * bin, GstElement * new_elem);
gboolean gst_camerabin_add_element (GstBin * bin, GstElement * new_elem);
GstElement *gst_camerabin_create_and_add_element (GstBin * bin,
const gchar * elem_name);
void gst_camerabin_remove_elements_from_bin (GstBin * bin);
gboolean
gst_camerabin_drop_eos_probe (GstPad * pad, GstEvent * event, gpointer u_data);
GST_DEBUG_CATEGORY_EXTERN (gst_camerabin_debug);
#define GST_CAT_DEFAULT gst_camerabin_debug
#endif /* #ifndef __CAMERABIN_GENERAL_H_ */

571
gst/camerabin/camerabinimage.c Normal file
View file

@ -0,0 +1,571 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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.
*/
/**
* SECTION:camerabinimage
* @short_description: image capturing module of #GstCameraBin
*
* <refsect2>
* <para>
*
* The pipeline for this module is:
*
* <informalexample>
* <programlisting>
*-----------------------------------------------------------------------------
* (src0) -> queue ->
* -> [post proc] -> tee <
* (src1) -> imageenc -> metadatamuxer -> filesink
*-----------------------------------------------------------------------------
* </programlisting>
* </informalexample>
*
* The property of elements are:
*
* queue - "max-size-buffers", 1, "leaky", 2,
*
* The image bin opens file for image writing in READY to PAUSED state change.
* The image bin closes the file in PAUSED to READY state change.
*
* </para>
* </refsect2>
*/
/*
* includes
*/
#include <gst/gst.h>
#include "camerabinimage.h"
#include "camerabingeneral.h"
#include "string.h"
/* default internal element names */
#define DEFAULT_SINK "filesink"
#define DEFAULT_ENC "jpegenc"
#define DEFAULT_META_MUX "metadatamux"
enum
{
PROP_0,
PROP_FILENAME
};
static gboolean gst_camerabin_image_create_elements (GstCameraBinImage * img);
static void gst_camerabin_image_destroy_elements (GstCameraBinImage * img);
static void gst_camerabin_image_dispose (GstCameraBinImage * sink);
static GstStateChangeReturn
gst_camerabin_image_change_state (GstElement * element,
GstStateChange transition);
static gboolean gst_camerabin_image_send_event (GstElement * element,
GstEvent * event);
static void gst_camerabin_image_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_camerabin_image_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
GST_BOILERPLATE (GstCameraBinImage, gst_camerabin_image, GstBin, GST_TYPE_BIN);
static const GstElementDetails gst_camerabin_image_details =
GST_ELEMENT_DETAILS ("Image capture bin for camerabin",
"Bin/Image",
"Process and store image data",
"Edgard Lima <edgard.lima@indt.org.br>\n"
"Nokia Corporation <multimedia@maemo.org>");
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static void
gst_camerabin_image_base_init (gpointer klass)
{
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details (eklass, &gst_camerabin_image_details);
}
static void
gst_camerabin_image_class_init (GstCameraBinImageClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose =
(GObjectFinalizeFunc) GST_DEBUG_FUNCPTR (gst_camerabin_image_dispose);
eklass->change_state = GST_DEBUG_FUNCPTR (gst_camerabin_image_change_state);
eklass->send_event = GST_DEBUG_FUNCPTR (gst_camerabin_image_send_event);
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_camerabin_image_set_property);
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_camerabin_image_get_property);
/**
* GstCameraBinImage:filename
*
* This property can be used to specify the filename of the image.
*
**/
g_object_class_install_property (gobject_class, PROP_FILENAME,
g_param_spec_string ("filename", "Filename",
"Filename of the image to save", NULL, G_PARAM_READWRITE));
}
static void
gst_camerabin_image_init (GstCameraBinImage * img,
GstCameraBinImageClass * g_class)
{
img->filename = g_string_new ("");
img->pad_tee_enc = NULL;
img->pad_tee_view = NULL;
img->post = NULL;
img->tee = NULL;
img->enc = NULL;
img->user_enc = NULL;
img->meta_mux = NULL;
img->sink = NULL;
img->queue = NULL;
/* Create src and sink ghost pads */
img->sinkpad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (img), img->sinkpad);
img->srcpad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (img), img->srcpad);
img->elements_created = FALSE;
}
static void
gst_camerabin_image_dispose (GstCameraBinImage * img)
{
g_string_free (img->filename, TRUE);
img->filename = NULL;
if (img->user_enc) {
gst_object_unref (img->user_enc);
img->user_enc = NULL;
}
if (img->post) {
gst_object_unref (img->post);
img->post = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose ((GObject *) img);
}
static GstStateChangeReturn
gst_camerabin_image_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstCameraBinImage *img = GST_CAMERABIN_IMAGE (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_camerabin_image_create_elements (img)) {
return GST_STATE_CHANGE_FAILURE;
}
/* Allow setting filename when image bin in READY state */
gst_element_set_locked_state (img->sink, TRUE);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_element_set_locked_state (img->sink, FALSE);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
/* Set sink to NULL in order to write the file _now_ */
GST_INFO ("write img file: %s", img->filename->str);
gst_element_set_locked_state (img->sink, TRUE);
gst_element_set_state (img->sink, GST_STATE_NULL);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
gst_camerabin_image_destroy_elements (img);
break;
default:
break;
}
return ret;
}
gboolean
gst_camerabin_image_send_event (GstElement * element, GstEvent * event)
{
GstCameraBinImage *bin = GST_CAMERABIN_IMAGE (element);
gboolean ret = FALSE;
GST_INFO ("got %s event", GST_EVENT_TYPE_NAME (event));
if (GST_EVENT_IS_DOWNSTREAM (event)) {
ret = gst_pad_send_event (bin->sinkpad, event);
} else {
if (bin->sink) {
ret = gst_element_send_event (bin->sink, event);
} else {
GST_WARNING ("upstream event handling failed");
}
}
return ret;
}
static void
gst_camerabin_image_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstCameraBinImage *bin = GST_CAMERABIN_IMAGE (object);
switch (prop_id) {
case PROP_FILENAME:
g_string_assign (bin->filename, g_value_get_string (value));
if (bin->sink) {
g_object_set (G_OBJECT (bin->sink), "location", bin->filename->str,
NULL);
} else {
GST_INFO ("no sink, not setting name yet");
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_camerabin_image_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstCameraBinImage *bin = GST_CAMERABIN_IMAGE (object);
switch (prop_id) {
case PROP_FILENAME:
g_value_set_string (value, bin->filename->str);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*
* static helper functions implementation
*/
/**
* metadata_write_probe:
* @pad: sink pad of metadata muxer
* @buffer: received buffer
* @u_data: image bin object
*
* Buffer probe that sets Xmp.dc.type and Xmp.dc.format tags
* to metadata muxer based on preceding element src pad caps.
*
* Returns: TRUE always
*/
static gboolean
metadata_write_probe (GstPad * pad, GstBuffer * buffer, gpointer u_data)
{
/* Add XMP tags */
GstCameraBinImage *img = NULL;
GstTagSetter *setter = NULL;
GstPad *srcpad = NULL;
GstCaps *caps = NULL;
GstStructure *st = NULL;
img = GST_CAMERABIN_IMAGE (u_data);
g_return_val_if_fail (img != NULL, TRUE);
setter = GST_TAG_SETTER (img->meta_mux);
if (!setter) {
GST_WARNING_OBJECT (img, "setting tags failed");
goto done;
}
/* Xmp.dc.type tag */
gst_tag_setter_add_tags (setter, GST_TAG_MERGE_REPLACE,
GST_TAG_CODEC, "Image", NULL);
/* Xmp.dc.format tag */
if (img->enc) {
srcpad = gst_element_get_static_pad (img->enc, "src");
}
GST_LOG_OBJECT (img, "srcpad:%" GST_PTR_FORMAT, srcpad);
if (srcpad) {
caps = gst_pad_get_negotiated_caps (srcpad);
GST_LOG_OBJECT (img, "caps:%" GST_PTR_FORMAT, caps);
if (caps) {
/* If there are many structures, we can't know which one to use */
if (gst_caps_get_size (caps) != 1) {
GST_WARNING_OBJECT (img, "can't decide structure for format tag");
goto done;
}
st = gst_caps_get_structure (caps, 0);
if (st) {
GST_DEBUG_OBJECT (img, "Xmp.dc.format:%s", gst_structure_get_name (st));
gst_tag_setter_add_tags (setter, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, gst_structure_get_name (st), NULL);
}
}
}
done:
if (caps)
gst_caps_unref (caps);
if (srcpad)
gst_object_unref (srcpad);
return TRUE;
}
/**
* gst_camerabin_image_create_elements:
* @img: a pointer to #GstCameraBinImage object
*
* This function creates needed #GstElements and resources to capture images.
* Use gst_camerabin_image_destroy_elements to release these resources.
*
* Image bin:
* img->sinkpad ! [ post process !] tee name=t0 ! encoder ! metadata ! filesink
* t0. ! queue ! img->srcpad
*
* Returns: %TRUE if succeeded or FALSE if failed
*/
static gboolean
gst_camerabin_image_create_elements (GstCameraBinImage * img)
{
GstPad *sinkpad = NULL, *img_sinkpad = NULL, *img_srcpad = NULL;
gboolean ret = FALSE;
GstBin *imgbin = NULL;
g_return_val_if_fail (img != NULL, FALSE);
GST_DEBUG ("creating image capture elements");
imgbin = GST_BIN (img);
if (img->elements_created) {
GST_WARNING ("elements already created");
ret = TRUE;
goto done;
} else {
img->elements_created = TRUE;
}
/* Create image pre/post-processing element if any */
if (img->post) {
if (!gst_camerabin_add_element (imgbin, img->post)) {
goto done;
}
img_sinkpad = gst_element_get_static_pad (img->post, "sink");
}
/* Create tee */
if (!(img->tee = gst_camerabin_create_and_add_element (imgbin, "tee"))) {
goto done;
}
/* Set up sink ghost pad for img bin */
if (!img_sinkpad) {
img_sinkpad = gst_element_get_static_pad (img->tee, "sink");
}
gst_ghost_pad_set_target (GST_GHOST_PAD (img->sinkpad), img_sinkpad);
/* Add colorspace converter */
img->pad_tee_enc = gst_element_get_request_pad (img->tee, "src%d");
if (!gst_camerabin_create_and_add_element (imgbin, "ffmpegcolorspace")) {
goto done;
}
/* Create image encoder */
if (img->user_enc) {
img->enc = img->user_enc;
if (!gst_camerabin_add_element (imgbin, img->enc)) {
goto done;
}
} else if (!(img->enc =
gst_camerabin_create_and_add_element (imgbin, DEFAULT_ENC))) {
goto done;
}
/* Create metadata element */
if (!(img->meta_mux =
gst_camerabin_create_and_add_element (imgbin, DEFAULT_META_MUX))) {
goto done;
}
/* Add probe for XMP metadata writing */
sinkpad = gst_element_get_static_pad (img->meta_mux, "sink");
gst_pad_add_buffer_probe (sinkpad, G_CALLBACK (metadata_write_probe), img);
gst_object_unref (sinkpad);
/* Set "Intel" exif byte-order if possible */
if (g_object_class_find_property (G_OBJECT_GET_CLASS (img->meta_mux),
"exif-byte-order")) {
g_object_set (G_OBJECT (img->meta_mux), "exif-byte-order", 1, NULL);
}
/* Create file sink element */
if (!(img->sink =
gst_camerabin_create_and_add_element (imgbin, DEFAULT_SINK))) {
goto done;
}
/* Create queue element leading to view finder, attaches it to the tee */
img->pad_tee_view = gst_element_get_request_pad (img->tee, "src%d");
if (!(img->queue = gst_camerabin_create_and_add_element (imgbin, "queue"))) {
goto done;
}
/* Set properties */
g_object_set (G_OBJECT (img->sink), "location", img->filename->str, NULL);
g_object_set (G_OBJECT (img->sink), "async", FALSE, NULL);
g_object_set (G_OBJECT (img->queue), "max-size-buffers", 1, "leaky", 2, NULL);
/* Set up src ghost pad for img bin */
img_srcpad = gst_element_get_static_pad (img->queue, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD (img->srcpad), img_srcpad);
/* Never let image bin eos events reach view finder */
gst_pad_add_event_probe (img->srcpad,
G_CALLBACK (gst_camerabin_drop_eos_probe), img);
ret = TRUE;
done:
if (img_srcpad) {
gst_object_unref (img_srcpad);
}
if (img_sinkpad) {
gst_object_unref (img_sinkpad);
}
if (!ret) {
gst_camerabin_image_destroy_elements (img);
}
return ret;
}
/**
* gst_camerabin_image_destroy_elements:
* @img: a pointer to #GstCameraBinImage object
*
* This function releases resources allocated in
* gst_camerabin_image_create_elements.
*
*/
static void
gst_camerabin_image_destroy_elements (GstCameraBinImage * img)
{
GST_LOG ("destroying img elements");
if (img->pad_tee_enc) {
gst_element_release_request_pad (img->tee, img->pad_tee_enc);
img->pad_tee_enc = NULL;
}
if (img->pad_tee_view) {
gst_element_release_request_pad (img->tee, img->pad_tee_view);
img->pad_tee_view = NULL;
}
gst_ghost_pad_set_target (GST_GHOST_PAD (img->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD (img->srcpad), NULL);
gst_camerabin_remove_elements_from_bin (GST_BIN (img));
img->post = NULL;
img->tee = NULL;
img->enc = NULL;
img->meta_mux = NULL;
img->sink = NULL;
img->queue = NULL;
img->elements_created = FALSE;
}
void
gst_camerabin_image_set_encoder (GstCameraBinImage * img, GstElement * encoder)
{
if (img->user_enc)
gst_object_unref (img->user_enc);
if (encoder)
gst_object_ref (encoder);
img->user_enc = encoder;
}
void
gst_camerabin_image_set_postproc (GstCameraBinImage * img,
GstElement * postproc)
{
if (img->post)
gst_object_unref (img->post);
if (postproc)
gst_object_ref (postproc);
img->post = postproc;
}
GstElement *
gst_camerabin_image_get_encoder (GstCameraBinImage * img)
{
GstElement *enc;
if (img->user_enc) {
enc = img->user_enc;
} else {
enc = img->enc;
}
return enc;
}
GstElement *
gst_camerabin_image_get_postproc (GstCameraBinImage * img)
{
return img->post;
}

90
gst/camerabin/camerabinimage.h Normal file
View file

@ -0,0 +1,90 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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 __CAMERABIN_IMAGE_H__
#define __CAMERABIN_IMAGE_H__
#include <gst/gstbin.h>
G_BEGIN_DECLS
#define GST_TYPE_CAMERABIN_IMAGE (gst_camerabin_image_get_type())
#define GST_CAMERABIN_IMAGE_CAST(obj) ((GstCameraBinImage*)(obj))
#define GST_CAMERABIN_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CAMERABIN_IMAGE,GstCameraBinImage))
#define GST_CAMERABIN_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CAMERABIN_IMAGE,GstCameraBinImageClass))
#define GST_IS_CAMERABIN_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CAMERABIN_IMAGE))
#define GST_IS_CAMERABIN_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CAMERABIN_IMAGE))
/**
* GstCameraBinImage:
*
* The opaque #GstCameraBinImage structure.
*/
typedef struct _GstCameraBinImage GstCameraBinImage;
typedef struct _GstCameraBinImageClass GstCameraBinImageClass;
struct _GstCameraBinImage
{
GstBin parent;
GString *filename;
/* Ghost pads of image bin */
GstPad *sinkpad;
GstPad *srcpad;
/* Tee src pad leading to image encoder */
GstPad *pad_tee_enc;
/* Tee src pad leading to view finder */
GstPad *pad_tee_view;
GstElement *post;
GstElement *tee;
GstElement *enc;
GstElement *user_enc;
GstElement *meta_mux;
GstElement *sink;
GstElement *queue;
gboolean elements_created;
};
struct _GstCameraBinImageClass
{
GstBinClass parent_class;
};
GType gst_camerabin_image_get_type (void);
void
gst_camerabin_image_set_encoder (GstCameraBinImage * img, GstElement * encoder);
void
gst_camerabin_image_set_postproc (GstCameraBinImage * img,
GstElement * postproc);
GstElement *gst_camerabin_image_get_encoder (GstCameraBinImage * img);
GstElement *gst_camerabin_image_get_postproc (GstCameraBinImage * img);
G_END_DECLS
#endif /* #ifndef __CAMERABIN_IMAGE_H__ */

826
gst/camerabin/camerabinvideo.c Normal file
View file

@ -0,0 +1,826 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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.
*/
/**
* SECTION:camerabinvideo
* @short_description: video recording module of #GstCameraBin
*
* <refsect2>
* <para>
*
* The pipeline for this module is:
*
* <informalexample>
* <programlisting>
*-----------------------------------------------------------------------------
* audiosrc -> audio_queue -> audioconvert -> volume -> audioenc
* > videomux -> filesink
* video_queue -> [timeoverlay] -> videoenc
* -> [post proc] -> tee <
* queue ->
*-----------------------------------------------------------------------------
* </programlisting>
* </informalexample>
*
* The properties of elements are:
*
* queue - "leaky", 2 (Leaky on downstream (old buffers))
*
* </para>
* </refsect2>
*/
/*
* includes
*/
#include <gst/gst.h>
#include "camerabingeneral.h"
#include "camerabinvideo.h"
/*
* defines and static global vars
*/
/* internal element names */
#define DEFAULT_AUD_SRC "pulsesrc"
#define DEFAULT_AUD_ENC "vorbisenc"
#define DEFAULT_VID_ENC "theoraenc"
#define DEFAULT_MUX "oggmux"
#define DEFAULT_SINK "filesink"
#define USE_AUDIO_CONVERSION 1
enum
{
PROP_0,
PROP_FILENAME
};
static void gst_camerabin_video_dispose (GstCameraBinVideo * sink);
static void gst_camerabin_video_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_camerabin_video_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstClock *gst_camerabin_video_provide_clock (GstElement * elem);
static GstStateChangeReturn
gst_camerabin_video_change_state (GstElement * element,
GstStateChange transition);
static
gboolean camerabin_video_pad_tee_src0_have_buffer (GstPad * pad,
GstBuffer * buffer, gpointer u_data);
static gboolean camerabin_video_pad_aud_src_have_buffer (GstPad * pad,
GstBuffer * buffer, gpointer u_data);
static gboolean camerabin_video_sink_have_event (GstPad * pad, GstEvent * event,
gpointer u_data);
static gboolean gst_camerabin_video_create_elements (GstCameraBinVideo * vid);
static void gst_camerabin_video_destroy_elements (GstCameraBinVideo * vid);
GST_BOILERPLATE (GstCameraBinVideo, gst_camerabin_video, GstBin, GST_TYPE_BIN);
static const GstElementDetails gst_camerabin_video_details =
GST_ELEMENT_DETAILS ("Video capture bin for camerabin",
"Bin/Video",
"Process and store video data",
"Edgard Lima <edgard.lima@indt.org.br>\n"
"Nokia Corporation <multimedia@maemo.org>");
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
/* GObject methods implementation */
static void
gst_camerabin_video_base_init (gpointer klass)
{
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details (eklass, &gst_camerabin_video_details);
}
static void
gst_camerabin_video_class_init (GstCameraBinVideoClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose =
(GObjectFinalizeFunc) GST_DEBUG_FUNCPTR (gst_camerabin_video_dispose);
eklass->change_state = GST_DEBUG_FUNCPTR (gst_camerabin_video_change_state);
eklass->provide_clock = GST_DEBUG_FUNCPTR (gst_camerabin_video_provide_clock);
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_camerabin_video_set_property);
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_camerabin_video_get_property);
/**
* GstCameraBinVideo:filename:
*
* This property can be used to specify the filename of the video.
*
**/
g_object_class_install_property (gobject_class, PROP_FILENAME,
g_param_spec_string ("filename", "Filename",
"Filename of the video to save", NULL, G_PARAM_READWRITE));
}
static void
gst_camerabin_video_init (GstCameraBinVideo * vid,
GstCameraBinVideoClass * g_class)
{
vid->filename = g_string_new ("");
vid->user_post = NULL;
vid->user_vid_enc = NULL;
vid->user_aud_enc = NULL;
vid->user_aud_src = NULL;
vid->user_mux = NULL;
vid->aud_src = NULL;
vid->sink = NULL;
vid->tee = NULL;
vid->volume = NULL;
vid->video_queue = NULL;
vid->tee_video_srcpad = NULL;
vid->tee_vf_srcpad = NULL;
vid->pending_eos = NULL;
/* Create src and sink ghost pads */
vid->sinkpad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (vid), vid->sinkpad);
vid->srcpad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (vid), vid->srcpad);
/* Add probe for handling eos when stopping recording */
gst_pad_add_event_probe (vid->sinkpad,
G_CALLBACK (camerabin_video_sink_have_event), vid);
}
static void
gst_camerabin_video_dispose (GstCameraBinVideo * vid)
{
GST_DEBUG_OBJECT (vid, "disposing");
g_string_free (vid->filename, TRUE);
vid->filename = NULL;
if (vid->user_post) {
gst_object_unref (vid->user_post);
vid->user_post = NULL;
}
if (vid->user_vid_enc) {
gst_object_unref (vid->user_vid_enc);
vid->user_vid_enc = NULL;
}
if (vid->user_aud_enc) {
gst_object_unref (vid->user_aud_enc);
vid->user_aud_enc = NULL;
}
if (vid->user_aud_src) {
gst_object_unref (vid->user_aud_src);
vid->user_aud_src = NULL;
}
if (vid->user_mux) {
gst_object_unref (vid->user_mux);
vid->user_mux = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose ((GObject *) vid);
}
static void
gst_camerabin_video_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstCameraBinVideo *bin = GST_CAMERABIN_VIDEO (object);
switch (prop_id) {
case PROP_FILENAME:
g_string_assign (bin->filename, g_value_get_string (value));
if (bin->sink) {
g_object_set (G_OBJECT (bin->sink), "location", bin->filename->str,
NULL);
} else {
GST_INFO ("no sink, not setting name yet");
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_camerabin_video_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstCameraBinVideo *bin = GST_CAMERABIN_VIDEO (object);
switch (prop_id) {
case PROP_FILENAME:
g_value_set_string (value, bin->filename->str);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* GstElement methods implementation */
static GstClock *
gst_camerabin_video_provide_clock (GstElement * elem)
{
GstElement *aud_src = GST_CAMERABIN_VIDEO (elem)->aud_src;
if (aud_src) {
return gst_element_provide_clock (aud_src);
} else {
return NULL;
}
}
static GstStateChangeReturn
gst_camerabin_video_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstCameraBinVideo *vid = GST_CAMERABIN_VIDEO (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_camerabin_video_create_elements (vid)) {
return GST_STATE_CHANGE_FAILURE;
}
/* Don't change sink to READY yet to allow changing the
filename in READY state. */
gst_element_set_locked_state (vid->sink, TRUE);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
vid->calculate_adjust_ts_video = TRUE;
vid->calculate_adjust_ts_aud = TRUE;
g_object_set (G_OBJECT (vid->sink), "async", FALSE, NULL);
gst_element_set_locked_state (vid->sink, FALSE);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
vid->calculate_adjust_ts_video = TRUE;
vid->calculate_adjust_ts_aud = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
/* Set sink to NULL in order to write the file _now_ */
GST_INFO ("write vid file: %s", vid->filename->str);
gst_element_set_locked_state (vid->sink, TRUE);
gst_element_set_state (vid->sink, GST_STATE_NULL);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
if (vid->pending_eos) {
/* Video bin is still paused, so push eos directly to video queue */
GST_DEBUG_OBJECT (vid, "pushing pending eos");
gst_pad_push_event (vid->tee_video_srcpad, vid->pending_eos);
vid->pending_eos = NULL;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
/* Reset counters related to timestamp rewriting */
vid->adjust_ts_video = 0;
vid->last_ts_video = 0;
vid->adjust_ts_aud = 0;
vid->last_ts_aud = 0;
if (vid->pending_eos) {
gst_event_unref (vid->pending_eos);
vid->pending_eos = NULL;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_camerabin_video_destroy_elements (vid);
break;
default:
break;
}
return ret;
}
/*
* static helper functions implementation
*/
/**
* camerabin_video_pad_tee_src0_have_buffer:
* @pad: tee src pad leading to video encoding
* @event: received buffer
* @u_data: video bin object
*
* Buffer probe for rewriting video buffer timestamps.
*
* Returns: TRUE always
*/
static gboolean
camerabin_video_pad_tee_src0_have_buffer (GstPad * pad, GstBuffer * buffer,
gpointer u_data)
{
GstCameraBinVideo *vid = (GstCameraBinVideo *) u_data;
GST_LOG ("buffer in with size %d ts %" GST_TIME_FORMAT,
GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
if (G_UNLIKELY (vid->calculate_adjust_ts_video)) {
GstEvent *event;
GstObject *tee;
GstPad *sinkpad;
vid->adjust_ts_video = GST_BUFFER_TIMESTAMP (buffer) - vid->last_ts_video;
vid->calculate_adjust_ts_video = FALSE;
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
0, GST_CLOCK_TIME_NONE, vid->last_ts_video);
/* Send the newsegment to both view finder and video bin */
tee = gst_pad_get_parent (pad);
sinkpad = gst_element_get_static_pad (GST_ELEMENT (tee), "sink");
gst_pad_send_event (sinkpad, event);
gst_object_unref (tee);
gst_object_unref (sinkpad);
GST_LOG_OBJECT (vid, "vid ts adjustment: %" GST_TIME_FORMAT,
GST_TIME_ARGS (vid->adjust_ts_video));
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
GST_BUFFER_TIMESTAMP (buffer) -= vid->adjust_ts_video;
vid->last_ts_video = GST_BUFFER_TIMESTAMP (buffer);
if (GST_BUFFER_DURATION_IS_VALID (buffer))
vid->last_ts_video += GST_BUFFER_DURATION (buffer);
GST_LOG ("buffer out with size %d ts %" GST_TIME_FORMAT,
GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
return TRUE;
}
/**
* camerabin_video_pad_aud_src_have_buffer:
* @pad: audio source src pad
* @event: received buffer
* @u_data: video bin object
*
* Buffer probe for rewriting audio buffer timestamps.
*
* Returns: TRUE always
*/
static gboolean
camerabin_video_pad_aud_src_have_buffer (GstPad * pad, GstBuffer * buffer,
gpointer u_data)
{
GstCameraBinVideo *vid = (GstCameraBinVideo *) u_data;
if (vid->calculate_adjust_ts_aud) {
GstEvent *event;
GstPad *peerpad = NULL;
vid->adjust_ts_aud = GST_BUFFER_TIMESTAMP (buffer) - vid->last_ts_aud;
vid->calculate_adjust_ts_aud = FALSE;
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
0, GST_CLOCK_TIME_NONE, vid->last_ts_aud);
peerpad = gst_pad_get_peer (pad);
if (peerpad) {
gst_pad_send_event (peerpad, event);
gst_object_unref (peerpad);
}
GST_LOG_OBJECT (vid, "aud ts adjustment: %" GST_TIME_FORMAT,
GST_TIME_ARGS (vid->adjust_ts_aud));
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
GST_BUFFER_TIMESTAMP (buffer) -= vid->adjust_ts_aud;
vid->last_ts_aud = GST_BUFFER_TIMESTAMP (buffer);
if (GST_BUFFER_DURATION_IS_VALID (buffer))
vid->last_ts_aud += GST_BUFFER_DURATION (buffer);
GST_LOG ("buffer out with size %d ts %" GST_TIME_FORMAT,
GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
return TRUE;
}
/**
* camerabin_video_sink_have_event:
* @pad: video bin sink pad
* @event: received event
* @u_data: video bin object
*
* Event probe for video bin eos handling.
* Copies the eos event to audio branch of video bin.
*
* Returns: FALSE to drop the event, TRUE otherwise
*/
static gboolean
camerabin_video_sink_have_event (GstPad * pad, GstEvent * event,
gpointer u_data)
{
GstCameraBinVideo *vid = (GstCameraBinVideo *) u_data;
gboolean ret = TRUE;
GST_DEBUG_OBJECT (vid, "got videobin sink event: %s",
GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
if (vid->aud_src) {
GST_DEBUG_OBJECT (vid, "copying %s to audio branch",
GST_EVENT_TYPE_NAME (event));
gst_element_send_event (vid->aud_src, gst_event_copy (event));
}
/* If we're paused, we can't pass eos to video now to avoid blocking.
Instead send eos when changing to playing next time. */
if (GST_STATE (GST_ELEMENT (vid)) == GST_STATE_PAUSED) {
GST_DEBUG_OBJECT (vid, "paused, delay eos sending");
vid->pending_eos = gst_event_ref (event);
ret = FALSE; /* Drop the event */
}
break;
default:
break;
}
return ret;
}
/**
* gst_camerabin_video_create_elements:
* @vid: a pointer to #GstCameraBinVideo
*
* This function creates the needed #GstElements and resources to record videos.
* Use gst_camerabin_video_destroy_elements() to free these resources.
*
* Returns: %TRUE if succeeded or FALSE if failed
*/
static gboolean
gst_camerabin_video_create_elements (GstCameraBinVideo * vid)
{
GstPad *pad = NULL, *vid_sinkpad = NULL, *vid_srcpad = NULL;
GstBin *vidbin = GST_BIN (vid);
GstElement *queue = NULL;
vid->adjust_ts_video = 0;
vid->last_ts_video = 0;
vid->calculate_adjust_ts_video = FALSE;
vid->adjust_ts_aud = 0;
vid->last_ts_aud = 0;
vid->calculate_adjust_ts_aud = FALSE;
/* Add video post processing element if any */
if (vid->user_post) {
if (!gst_camerabin_add_element (vidbin, vid->user_post)) {
goto error;
}
vid_sinkpad = gst_element_get_static_pad (vid->user_post, "sink");
}
/* Add tee element */
if (!(vid->tee = gst_camerabin_create_and_add_element (vidbin, "tee"))) {
goto error;
}
/* Set up sink ghost pad for video bin */
if (!vid_sinkpad) {
vid_sinkpad = gst_element_get_static_pad (vid->tee, "sink");
}
gst_ghost_pad_set_target (GST_GHOST_PAD (vid->sinkpad), vid_sinkpad);
/* Add queue element for video */
vid->tee_video_srcpad = gst_element_get_request_pad (vid->tee, "src%d");
if (!(vid->video_queue =
gst_camerabin_create_and_add_element (vidbin, "queue"))) {
goto error;
}
/* Add probe for rewriting video timestamps */
gst_pad_add_buffer_probe (vid->tee_video_srcpad,
G_CALLBACK (camerabin_video_pad_tee_src0_have_buffer), vid);
#ifdef USE_TIMEOVERLAY
/* Add timeoverlay element to visualize elapsed time for debugging */
if (!(gst_camerabin_create_and_add_element (vidbin, "timeoverlay"))) {
goto error;
}
#endif
/* Add user set or default video encoder element */
if (vid->user_vid_enc) {
vid->vid_enc = vid->user_vid_enc;
if (!gst_camerabin_add_element (vidbin, vid->vid_enc)) {
goto error;
}
} else if (!(vid->vid_enc =
gst_camerabin_create_and_add_element (vidbin, DEFAULT_VID_ENC))) {
goto error;
}
/* Add user set or default muxer element */
if (vid->user_mux) {
vid->muxer = vid->user_mux;
if (!gst_camerabin_add_element (vidbin, vid->muxer)) {
goto error;
}
} else if (!(vid->muxer =
gst_camerabin_create_and_add_element (vidbin, DEFAULT_MUX))) {
goto error;
}
/* Add sink element for storing the video */
if (!(vid->sink =
gst_camerabin_create_and_add_element (vidbin, DEFAULT_SINK))) {
goto error;
}
g_object_set (G_OBJECT (vid->sink), "location", vid->filename->str, NULL);
/* Add user set or default audio source element */
if (vid->user_aud_src) {
vid->aud_src = vid->user_aud_src;
if (!gst_camerabin_add_element (vidbin, vid->aud_src)) {
goto error;
}
} else if (!(vid->aud_src =
gst_camerabin_create_and_add_element (vidbin, DEFAULT_AUD_SRC))) {
goto error;
}
/* Add queue element for audio */
if (!(queue = gst_camerabin_create_and_add_element (vidbin, "queue"))) {
goto error;
}
queue = NULL;
/* Add optional audio conversion and volume elements and
raise no errors if adding them fails */
#ifdef USE_AUDIO_CONVERSION
if (!gst_camerabin_try_add_element (vidbin,
gst_element_factory_make ("audioconvert", NULL))) {
GST_WARNING_OBJECT (vid, "unable to add audio conversion element");
/* gst_camerabin_try_add_element() destroyed the element */
}
#endif
vid->volume = gst_element_factory_make ("volume", NULL);
if (!gst_camerabin_try_add_element (vidbin, vid->volume)) {
GST_WARNING_OBJECT (vid, "unable to add volume element");
/* gst_camerabin_try_add_element() destroyed the element */
vid->volume = NULL;
}
/* Add user set or default audio encoder element */
if (vid->user_aud_enc) {
vid->aud_enc = vid->user_aud_enc;
if (!gst_camerabin_add_element (vidbin, vid->aud_enc)) {
goto error;
}
} else if (!(vid->aud_enc =
gst_camerabin_create_and_add_element (vidbin, DEFAULT_AUD_ENC))) {
goto error;
}
/* Link audio part to the muxer */
if (!gst_element_link (vid->aud_enc, vid->muxer)) {
GST_ELEMENT_ERROR (vid, CORE, NEGOTIATION, (NULL),
("linking audio encoder and muxer failed"));
goto error;
}
/* Add queue leading out of the video bin and to view finder */
vid->tee_vf_srcpad = gst_element_get_request_pad (vid->tee, "src%d");
if (!(queue = gst_camerabin_create_and_add_element (vidbin, "queue"))) {
goto error;
}
/* Set queue leaky, we don't want to block video encoder feed, but
prefer leaking view finder buffers instead. */
g_object_set (G_OBJECT (queue), "leaky", 2, NULL);
/* Set up src ghost pad for video bin */
vid_srcpad = gst_element_get_static_pad (queue, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD (vid->srcpad), vid_srcpad);
/* Never let video bin eos events reach view finder */
gst_pad_add_event_probe (vid_srcpad,
G_CALLBACK (gst_camerabin_drop_eos_probe), vid);
pad = gst_element_get_static_pad (vid->aud_src, "src");
gst_pad_add_buffer_probe (pad,
G_CALLBACK (camerabin_video_pad_aud_src_have_buffer), vid);
gst_object_unref (pad);
GST_DEBUG ("created video elements");
return TRUE;
error:
gst_camerabin_video_destroy_elements (vid);
return FALSE;
}
/**
* gst_camerabin_video_destroy_elements:
* @vid: a pointer to #GstCameraBinVideo
*
* This function destroys all the elements created by
* gst_camerabin_video_create_elements().
*
*/
static void
gst_camerabin_video_destroy_elements (GstCameraBinVideo * vid)
{
GST_DEBUG ("destroying video elements");
/* Release tee request pads */
if (vid->tee_video_srcpad) {
gst_element_release_request_pad (vid->tee, vid->tee_video_srcpad);
vid->tee_video_srcpad = NULL;
}
if (vid->tee_vf_srcpad) {
gst_element_release_request_pad (vid->tee, vid->tee_vf_srcpad);
vid->tee_vf_srcpad = NULL;
}
gst_ghost_pad_set_target (GST_GHOST_PAD (vid->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD (vid->srcpad), NULL);
gst_camerabin_remove_elements_from_bin (GST_BIN (vid));
vid->aud_src = NULL;
vid->sink = NULL;
vid->tee = NULL;
vid->volume = NULL;
vid->video_queue = NULL;
vid->vid_enc = NULL;
vid->aud_enc = NULL;
vid->muxer = NULL;
if (vid->pending_eos) {
gst_event_unref (vid->pending_eos);
vid->pending_eos = NULL;
}
return;
}
/*
* Set & get mute and video capture elements
*/
void
gst_camerabin_video_set_mute (GstCameraBinVideo * vid, gboolean mute)
{
if (vid && vid->volume) {
GST_DEBUG_OBJECT (vid, "setting mute %s", mute ? "on" : "off");
g_object_set (vid->volume, "mute", mute, NULL);
}
}
void
gst_camerabin_video_set_post (GstCameraBinVideo * vid, GstElement * post)
{
GstElement **user_post;
GST_DEBUG_OBJECT (vid, "setting video post processing: %" GST_PTR_FORMAT,
post);
GST_OBJECT_LOCK (vid);
user_post = &vid->user_post;
gst_object_replace ((GstObject **) user_post, GST_OBJECT (post));
GST_OBJECT_UNLOCK (vid);
}
void
gst_camerabin_video_set_video_enc (GstCameraBinVideo * vid,
GstElement * video_enc)
{
GstElement **user_vid_enc;
GST_DEBUG_OBJECT (vid, "setting video encoder: %" GST_PTR_FORMAT, video_enc);
GST_OBJECT_LOCK (vid);
user_vid_enc = &vid->user_vid_enc;
gst_object_replace ((GstObject **) user_vid_enc, GST_OBJECT (video_enc));
GST_OBJECT_UNLOCK (vid);
}
void
gst_camerabin_video_set_audio_enc (GstCameraBinVideo * vid,
GstElement * audio_enc)
{
GstElement **user_aud_enc;
GST_DEBUG_OBJECT (vid, "setting audio encoder: %" GST_PTR_FORMAT, audio_enc);
GST_OBJECT_LOCK (vid);
user_aud_enc = &vid->user_aud_enc;
gst_object_replace ((GstObject **) user_aud_enc, GST_OBJECT (audio_enc));
GST_OBJECT_UNLOCK (vid);
}
void
gst_camerabin_video_set_muxer (GstCameraBinVideo * vid, GstElement * muxer)
{
GstElement **user_mux;
GST_DEBUG_OBJECT (vid, "setting muxer: %" GST_PTR_FORMAT, muxer);
GST_OBJECT_LOCK (vid);
user_mux = &vid->user_mux;
gst_object_replace ((GstObject **) user_mux, GST_OBJECT (muxer));
GST_OBJECT_UNLOCK (vid);
}
void
gst_camerabin_video_set_audio_src (GstCameraBinVideo * vid,
GstElement * audio_src)
{
GstElement **user_aud_src;
GST_DEBUG_OBJECT (vid, "setting audio source: %" GST_PTR_FORMAT, audio_src);
GST_OBJECT_LOCK (vid);
user_aud_src = &vid->user_aud_src;
gst_object_replace ((GstObject **) user_aud_src, GST_OBJECT (audio_src));
GST_OBJECT_UNLOCK (vid);
}
gboolean
gst_camerabin_video_get_mute (GstCameraBinVideo * vid)
{
gboolean mute = ARG_DEFAULT_MUTE;
if (vid && vid->volume) {
g_object_get (vid->volume, "mute", &mute, NULL);
}
return mute;
}
GstElement *
gst_camerabin_video_get_post (GstCameraBinVideo * vid)
{
return vid->user_post;
}
GstElement *
gst_camerabin_video_get_video_enc (GstCameraBinVideo * vid)
{
return vid->vid_enc ? vid->vid_enc : vid->user_vid_enc;
}
GstElement *
gst_camerabin_video_get_audio_enc (GstCameraBinVideo * vid)
{
return vid->aud_enc ? vid->aud_enc : vid->user_aud_enc;
}
GstElement *
gst_camerabin_video_get_muxer (GstCameraBinVideo * vid)
{
return vid->muxer ? vid->muxer : vid->user_mux;
}
GstElement *
gst_camerabin_video_get_audio_src (GstCameraBinVideo * vid)
{
return vid->aud_src ? vid->aud_src : vid->user_aud_src;
}

136
gst/camerabin/camerabinvideo.h Normal file
View file

@ -0,0 +1,136 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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 __CAMERABIN_VIDEO_H__
#define __CAMERABIN_VIDEO_H__
#include <gst/gstbin.h>
G_BEGIN_DECLS
//#define USE_TIMEOVERLAY 1
#define ARG_DEFAULT_MUTE FALSE
#define GST_TYPE_CAMERABIN_VIDEO (gst_camerabin_video_get_type())
#define GST_CAMERABIN_VIDEO_CAST(obj) ((GstCameraBinVideo*)(obj))
#define GST_CAMERABIN_VIDEO(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CAMERABIN_VIDEO,GstCameraBinVideo))
#define GST_CAMERABIN_VIDEO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CAMERABIN_VIDEO,GstCameraBinVideoClass))
#define GST_IS_CAMERABIN_VIDEO(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CAMERABIN_VIDEO))
#define GST_IS_CAMERABIN_VIDEO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CAMERABIN_VIDEO))
/**
* GstCameraBinVideo:
*
* The opaque #GstCameraBinVideo structure.
*/
typedef struct _GstCameraBinVideo GstCameraBinVideo;
typedef struct _GstCameraBinVideoClass GstCameraBinVideoClass;
struct _GstCameraBinVideo
{
GstBin parent;
GString *filename;
/* A/V timestamp rewriting */
guint64 adjust_ts_video;
guint64 last_ts_video;
gboolean calculate_adjust_ts_video;
guint64 adjust_ts_aud;
guint64 last_ts_aud;
gboolean calculate_adjust_ts_aud;
/* Sink and src pads of video bin */
GstPad *sinkpad;
GstPad *srcpad;
/* Tee src pads leading to video encoder and view finder */
GstPad *tee_video_srcpad;
GstPad *tee_vf_srcpad;
/* User set elements */
GstElement *user_post; /* Video post processing */
GstElement *user_vid_enc;
GstElement *user_aud_enc;
GstElement *user_aud_src;
GstElement *user_mux;
/* Other elements */
GstElement *aud_src; /* Audio source */
GstElement *sink; /* Sink for recorded video */
GstElement *tee; /* Split output to view finder and recording sink */
GstElement *volume; /* Volume for muting */
GstElement *video_queue; /* Buffer for raw video frames */
GstElement *vid_enc; /* Video encoder */
GstElement *aud_enc; /* Audio encoder */
GstElement *muxer; /* Muxer */
GstEvent *pending_eos;
};
struct _GstCameraBinVideoClass
{
GstBinClass parent_class;
};
GType gst_camerabin_video_get_type (void);
/*
* external function prototypes
*/
void gst_camerabin_video_set_mute (GstCameraBinVideo * vid, gboolean mute);
void gst_camerabin_video_set_post (GstCameraBinVideo * vid, GstElement * post);
void
gst_camerabin_video_set_video_enc (GstCameraBinVideo * vid,
GstElement * video_enc);
void
gst_camerabin_video_set_audio_enc (GstCameraBinVideo * vid,
GstElement * audio_enc);
void
gst_camerabin_video_set_muxer (GstCameraBinVideo * vid, GstElement * muxer);
void
gst_camerabin_video_set_audio_src (GstCameraBinVideo * vid,
GstElement * audio_src);
gboolean gst_camerabin_video_get_mute (GstCameraBinVideo * vid);
GstElement *gst_camerabin_video_get_post (GstCameraBinVideo * vid);
GstElement *gst_camerabin_video_get_video_enc (GstCameraBinVideo * vid);
GstElement *gst_camerabin_video_get_audio_enc (GstCameraBinVideo * vid);
GstElement *gst_camerabin_video_get_muxer (GstCameraBinVideo * vid);
GstElement *gst_camerabin_video_get_audio_src (GstCameraBinVideo * vid);
G_END_DECLS
#endif /* #ifndef __CAMERABIN_VIDEO_H__ */

6
gst/camerabin/gstcamerabin-marshal.list Normal file
View file

@ -0,0 +1,6 @@
# glib-genmarshal --header --prefix=gst_camerabin camerabin_marshal.marshal > camerabin_marshal.h
# glib-genmarshal --body --prefix=gst_camerabin camerabin_marshal.marshal > camerabin_marshal.c
VOID:INT,INT,INT,INT
VOID:INT,INT

2762
gst/camerabin/gstcamerabin.c Normal file
View file

File diff suppressed because it is too large Load diff

168
gst/camerabin/gstcamerabin.h Normal file
View file

@ -0,0 +1,168 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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_CAMERABIN_H__
#define __GST_CAMERABIN_H__
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gstbin.h>
#include <gst/interfaces/photography.h>
#include "camerabinimage.h"
#include "camerabinvideo.h"
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
#define GST_TYPE_CAMERABIN \
(gst_camerabin_get_type())
#define GST_CAMERABIN(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CAMERABIN,GstCameraBin))
#define GST_CAMERABIN_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CAMERABIN,GstCameraBinClass))
#define GST_IS_CAMERABIN(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CAMERABIN))
#define GST_IS_CAMERABIN_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CAMERABIN))
typedef struct _GstCameraBin GstCameraBin;
typedef struct _GstCameraBinClass GstCameraBinClass;
/**
* GstCameraBin:
*
* The opaque #GstCameraBin structure.
*/
struct _GstCameraBin
{
GstPipeline parent;
/* private */
GString *filename;
gint mode; /* MODE_IMAGE or MODE_VIDEO */
guint num_img_buffers; /* no of image buffers captured */
gboolean stop_requested; /* TRUE if capturing stop needed */
gboolean paused; /* TRUE if capturing paused */
/* resolution and frames per second of image captured by v4l2 device */
gint width;
gint height;
gint fps_n;
gint fps_d;
/* Caps applied to capsfilters when taking still image */
GstCaps *image_capture_caps;
/* Caps applied to capsfilters when in view finder mode */
GstCaps *view_finder_caps;
/* Caps that videosrc supports */
GstCaps *allowed_caps;
/* The digital zoom (from 100% to 1000%) */
gint zoom;
/* concurrency control */
GMutex *capture_mutex;
GCond *cond;
gboolean capturing;
/* pad names for output and input selectors */
GstPad *pad_src_view;
GstPad *pad_view_src;
GstPad *pad_src_img;
GstPad *pad_view_img;
GstPad *pad_src_vid;
GstPad *pad_view_vid;
GstPad *srcpad_zoom_filter;
GstElement *imgbin; /* bin that holds image capturing elements */
GstElement *vidbin; /* bin that holds video capturing elements */
GstElement *active_bin; /* image or video bin that is currently in use */
/* source elements */
GstElement *src_vid_src;
GstElement *src_filter;
GstElement *src_zoom_crop;
GstElement *src_zoom_scale;
GstElement *src_zoom_filter;
GstElement *src_out_sel;
/* view finder elements */
GstElement *view_in_sel;
GstElement *view_scale;
GstElement *view_sink;
/* User configurable elements */
GstElement *user_vid_src;
GstElement *user_vf_sink;
/* Night mode handling */
gboolean night_mode;
gint pre_night_fps_n;
gint pre_night_fps_d;
};
/**
* GstCameraBinClass:
*
* The #GstCameraBin class structure.
*/
struct _GstCameraBinClass
{
GstPipelineClass parent_class;
/* action signals */
void (*user_start) (GstCameraBin * camera);
void (*user_stop) (GstCameraBin * camera);
void (*user_pause) (GstCameraBin * camera);
void (*user_res_fps) (GstCameraBin * camera, gint width, gint height,
gint fps_n, gint fps_d);
void (*user_image_res) (GstCameraBin * camera, gint width, gint height);
/* signals (callback) */
gboolean (*img_done) (GstCameraBin * camera, GString * filename);
};
/**
* GstCameraBinMode:
* @MODE_IMAGE: image capture
* @MODE_VIDEO: video capture
*
* Capture mode to use.
*/
typedef enum
{
MODE_IMAGE = 0,
MODE_VIDEO
} GstCameraBinMode;
GType gst_camerabin_get_type (void);
G_END_DECLS
#endif /* #ifndef __GST_CAMERABIN_H__ */

81
gst/camerabin/gstcamerabincolorbalance.c Normal file
View file

@ -0,0 +1,81 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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.
*/
/*
* Includes
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstcamerabincolorbalance.h"
#include "gstcamerabin.h"
/*
* static functions implementation
*/
static const GList *
gst_camerabin_color_balance_list_channels (GstColorBalance * cb)
{
if (cb && GST_CAMERABIN (cb)->src_vid_src) {
GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);
return gst_color_balance_list_channels (cbl);
} else {
return NULL;
}
}
static void
gst_camerabin_color_balance_set_value (GstColorBalance * cb,
GstColorBalanceChannel * channel, gint value)
{
if (cb && GST_CAMERABIN (cb)->src_vid_src) {
GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);
gst_color_balance_set_value (cbl, channel, value);
}
}
static gint
gst_camerabin_color_balance_get_value (GstColorBalance * cb,
GstColorBalanceChannel * channel)
{
if (cb && GST_CAMERABIN (cb)->src_vid_src) {
GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);
return gst_color_balance_get_value (cbl, channel);
} else {
return 0;
}
}
/*
* extern functions implementation
*/
void
gst_camerabin_color_balance_init (GstColorBalanceClass * iface)
{
/* FIXME: to get the same type as v4l2src */
GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_HARDWARE;
iface->list_channels = gst_camerabin_color_balance_list_channels;
iface->set_value = gst_camerabin_color_balance_set_value;
iface->get_value = gst_camerabin_color_balance_get_value;
}

28
gst/camerabin/gstcamerabincolorbalance.h Normal file
View file

@ -0,0 +1,28 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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_CAMERA_COLOR_BALANCE_H__
#define __GST_CAMERA_COLOR_BALANCE_H__
#include <gst/interfaces/colorbalance.h>
extern void gst_camerabin_color_balance_init (GstColorBalanceClass * iface);
#endif /* #ifndef __GST_CAMERA_COLOR_BALANCE_H__ */

222
gst/camerabin/gstcamerabinphotography.c Normal file
View file

@ -0,0 +1,222 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* Photography interface implementation for camerabin.
*
* 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 "gstcamerabinphotography.h"
#include "gstcamerabin.h"
GST_DEBUG_CATEGORY_STATIC (camerabinphoto_debug);
#define GST_CAT_DEFAULT camerabinphoto_debug
#define PHOTOGRAPHY_IS_OK(photo_elem) (GST_IS_ELEMENT (photo_elem) && \
gst_element_implements_interface (photo_elem, GST_TYPE_PHOTOGRAPHY))
#define GST_PHOTOGRAPHY_IMPL_TEMPLATE(function_name, param_type) \
static gboolean \
gst_camerabin_set_ ## function_name (GstPhotography *photo, param_type param) \
{ \
GstCameraBin *camera; \
gboolean ret = FALSE; \
g_return_val_if_fail (photo != NULL, FALSE); \
camera = GST_CAMERABIN (photo); \
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) { \
ret = gst_photography_set_ ## function_name (GST_PHOTOGRAPHY (camera->src_vid_src), param); \
} \
return ret; \
} \
static gboolean \
gst_camerabin_get_ ## function_name (GstPhotography *photo, param_type * param) \
{ \
GstCameraBin *camera; \
gboolean ret = FALSE; \
g_return_val_if_fail (photo != NULL, FALSE); \
camera = GST_CAMERABIN (photo); \
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) { \
ret = gst_photography_get_ ## function_name (GST_PHOTOGRAPHY (camera->src_vid_src), param); \
} \
return ret; \
}
GST_PHOTOGRAPHY_IMPL_TEMPLATE (ev_compensation, gfloat);
GST_PHOTOGRAPHY_IMPL_TEMPLATE (iso_speed, guint);
GST_PHOTOGRAPHY_IMPL_TEMPLATE (white_balance_mode, GstWhiteBalanceMode);
GST_PHOTOGRAPHY_IMPL_TEMPLATE (colour_tone_mode, GstColourToneMode);
GST_PHOTOGRAPHY_IMPL_TEMPLATE (flash_mode, GstFlashMode);
static gboolean
gst_camerabin_set_zoom (GstPhotography * photo, gfloat zoom)
{
GstCameraBin *camera;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* camerabin can zoom by itself */
g_object_set (camera, "zoom", (gint) (CLAMP (zoom, 1.0, 10.0) * 100), NULL);
return TRUE;
}
static gboolean
gst_camerabin_get_zoom (GstPhotography * photo, gfloat * zoom)
{
GstCameraBin *camera;
gint cb_zoom = 0;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
g_object_get (camera, "zoom", &cb_zoom, NULL);
*zoom = (gfloat) (cb_zoom / 100.0);
return TRUE;
}
static gboolean
gst_camerabin_set_scene_mode (GstPhotography * photo, GstSceneMode scene_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (scene_mode == GST_PHOTOGRAPHY_SCENE_MODE_NIGHT) {
GST_DEBUG ("enabling night mode, lowering fps");
/* Make camerabin select the lowest allowed frame rate */
camera->night_mode = TRUE;
/* Remember frame rate before setting night mode */
camera->pre_night_fps_n = camera->fps_n;
camera->pre_night_fps_d = camera->fps_d;
g_signal_emit_by_name (camera, "user-res-fps", camera->width,
camera->height, 0, 0, 0);
} else {
if (camera->night_mode) {
GST_DEBUG ("disabling night mode, restoring fps to %d/%d",
camera->pre_night_fps_n, camera->pre_night_fps_d);
camera->night_mode = FALSE;
g_signal_emit_by_name (camera, "user-res-fps", camera->width,
camera->height, camera->pre_night_fps_n, camera->pre_night_fps_d, 0);
}
}
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_set_scene_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
scene_mode);
}
return ret;
}
static gboolean
gst_camerabin_get_scene_mode (GstPhotography * photo, GstSceneMode * scene_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_get_scene_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
scene_mode);
}
return ret;
}
static GstPhotoCaps
gst_camerabin_get_capabilities (GstPhotography * photo)
{
GstCameraBin *camera;
/* camerabin can zoom by itself */
GstPhotoCaps pcaps = GST_PHOTOGRAPHY_CAPS_ZOOM;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (GST_IS_ELEMENT (camera->src_vid_src) &&
gst_element_implements_interface (camera->src_vid_src,
GST_TYPE_PHOTOGRAPHY)) {
GstPhotography *p2 = GST_PHOTOGRAPHY (camera->src_vid_src);
pcaps |= gst_photography_get_capabilities (p2);
}
return pcaps;
}
static void
gst_camerabin_set_autofocus (GstPhotography * photo, gboolean on)
{
GstCameraBin *camera;
g_return_if_fail (photo != NULL);
camera = GST_CAMERABIN (photo);
GST_DEBUG_OBJECT (camera, "setting autofocus %s", on ? "ON" : "OFF");
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
gst_photography_set_autofocus (GST_PHOTOGRAPHY (camera->src_vid_src), on);
}
}
void
gst_camerabin_photography_init (GstPhotographyInterface * iface)
{
GST_DEBUG_CATEGORY_INIT (camerabinphoto_debug, "camerabinphoto", 0,
"Camerabin photography interface debugging");
GST_INFO ("initing");
iface->set_ev_compensation = gst_camerabin_set_ev_compensation;
iface->get_ev_compensation = gst_camerabin_get_ev_compensation;
iface->set_iso_speed = gst_camerabin_set_iso_speed;
iface->get_iso_speed = gst_camerabin_get_iso_speed;
iface->set_white_balance_mode = gst_camerabin_set_white_balance_mode;
iface->get_white_balance_mode = gst_camerabin_get_white_balance_mode;
iface->set_colour_tone_mode = gst_camerabin_set_colour_tone_mode;
iface->get_colour_tone_mode = gst_camerabin_get_colour_tone_mode;
iface->set_scene_mode = gst_camerabin_set_scene_mode;
iface->get_scene_mode = gst_camerabin_get_scene_mode;
iface->set_flash_mode = gst_camerabin_set_flash_mode;
iface->get_flash_mode = gst_camerabin_get_flash_mode;
iface->set_zoom = gst_camerabin_set_zoom;
iface->get_zoom = gst_camerabin_get_zoom;
iface->get_capabilities = gst_camerabin_get_capabilities;
iface->set_autofocus = gst_camerabin_set_autofocus;
}

30
gst/camerabin/gstcamerabinphotography.h Normal file
View file

@ -0,0 +1,30 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* Photography interface implementation for camerabin
*
* 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_CAMERABIN_PHOTOGRAPHY_H__
#define __GST_CAMERABIN_PHOTOGRAPHY_H__
#include <gst/interfaces/photography.h>
void gst_camerabin_photography_init (GstPhotographyInterface * iface);
#endif /* #ifndef __GST_CAMERABIN_PHOTOGRAPHY_H__ */

73
gst/camerabin/gstcamerabinxoverlay.c Normal file
View file

@ -0,0 +1,73 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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.
*/
/*
* Includes
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstcamerabinxoverlay.h"
#include "gstcamerabin.h"
/*
* static functions implementation
*/
static void
gst_camerabin_expose (GstXOverlay * overlay)
{
if (overlay && GST_CAMERABIN (overlay)->view_sink) {
GstXOverlay *xoverlay = GST_X_OVERLAY (GST_CAMERABIN (overlay)->view_sink);
gst_x_overlay_expose (xoverlay);
}
}
static void
gst_camerabin_set_xwindow_id (GstXOverlay * overlay, gulong xwindow_id)
{
if (overlay && GST_CAMERABIN (overlay)->view_sink) {
GstXOverlay *xoverlay = GST_X_OVERLAY (GST_CAMERABIN (overlay)->view_sink);
gst_x_overlay_set_xwindow_id (xoverlay, xwindow_id);
}
}
static void
gst_camerabin_set_event_handling (GstXOverlay * overlay, gboolean handle_events)
{
if (overlay && GST_CAMERABIN (overlay)->view_sink) {
GstXOverlay *xoverlay = GST_X_OVERLAY (GST_CAMERABIN (overlay)->view_sink);
gst_x_overlay_handle_events (xoverlay, handle_events);
}
}
/*
* extern functions implementation
*/
void
gst_camerabin_xoverlay_init (GstXOverlayClass * iface)
{
iface->set_xwindow_id = gst_camerabin_set_xwindow_id;
iface->expose = gst_camerabin_expose;
iface->handle_events = gst_camerabin_set_event_handling;
}

28
gst/camerabin/gstcamerabinxoverlay.h Normal file
View file

@ -0,0 +1,28 @@
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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_CAMERAXOVERLAY_H__
#define __GST_CAMERAXOVERLAY_H__
#include <gst/interfaces/xoverlay.h>
extern void gst_camerabin_xoverlay_init (GstXOverlayClass * iface);
#endif /* #ifndef __GST_CAMERAXOVERLAY_H__ */