mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 20:21:24 +00:00
camerabin2: Adds video recording bin
Adds an bin that is responsible for encoding and saving video streams to files. For now it is simply a ffmpegcolorspace ! theoraenc ! oggmux ! filesink bin. Still uncapable of recording audio.
This commit is contained in:
Thiago Santos
parent
94da473ba7
commit
0dce17a4e8
4 changed files with 244 additions and 0 deletions
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@ -2,6 +2,7 @@ plugin_LTLIBRARIES = libgstcamerabin2.la
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libgstcamerabin2_la_SOURCES = gstviewfinderbin.c \
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gstimagecapturebin.c \
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gstvideorecordingbin.c \
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camerabingeneral.c \
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gstbasecamerasrc.c \
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gstcamerabin-enum.c \
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@ -23,6 +24,7 @@ libgstcamerabin2_la_LIBTOOLFLAGS = --tag=disable-static
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noinst_HEADERS = gstviewfinderbin.h \
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gstimagecapturebin.h \
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gstvideorecordingbin.h \
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camerabingeneral.h \
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gstbasecamerasrc.h \
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gstv4l2camerasrc.h \
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@ -25,6 +25,7 @@
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#include "gstviewfinderbin.h"
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#include "gstimagecapturebin.h"
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#include "gstvideorecordingbin.h"
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#include "gstv4l2camerasrc.h"
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static gboolean
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@ -34,6 +35,8 @@ plugin_init (GstPlugin * plugin)
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return FALSE;
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if (!gst_image_capture_bin_plugin_init (plugin))
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return FALSE;
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if (!gst_video_recording_bin_plugin_init (plugin))
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return FALSE;
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if (!gst_v4l2_camera_src_plugin_init (plugin))
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return FALSE;
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184
gst/camerabin2/gstvideorecordingbin.c
Normal file
184
gst/camerabin2/gstvideorecordingbin.c
Normal file
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@ -0,0 +1,184 @@
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/* GStreamer
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* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@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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/**
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* SECTION:element-gstvideorecordingbin
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*
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* The gstvideorecordingbin element does FIXME stuff.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch -v videotestsrc num-buffers=3 ! videorecordingbin
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* ]|
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* FIXME Describe what the pipeline does.
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* </refsect2>
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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 "gstvideorecordingbin.h"
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/* prototypes */
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enum
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{
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PROP_0
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};
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/* pad templates */
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-yuv; video/x-raw-rgb")
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);
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/* class initialization */
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GST_BOILERPLATE (GstVideoRecordingBin, gst_video_recording_bin, GstBin,
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GST_TYPE_BIN);
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/* Element class functions */
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static GstStateChangeReturn
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gst_video_recording_bin_change_state (GstElement * element,
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GstStateChange trans);
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static void
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gst_video_recording_bin_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_details_simple (element_class, "Video Recording Bin",
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"Sink/Video", "Video Recording Bin used in camerabin2",
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"Thiago Santos <thiago.sousa.santos@collabora.co.uk>");
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}
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static void
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gst_video_recording_bin_class_init (GstVideoRecordingBinClass * klass)
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{
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GstElementClass *element_class;
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element_class = GST_ELEMENT_CLASS (klass);
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element_class->change_state =
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GST_DEBUG_FUNCPTR (gst_video_recording_bin_change_state);
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}
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static void
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gst_video_recording_bin_init (GstVideoRecordingBin * video_recordingbin,
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GstVideoRecordingBinClass * video_recordingbin_class)
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{
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video_recordingbin->ghostpad =
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gst_ghost_pad_new_no_target_from_template ("sink",
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gst_static_pad_template_get (&sink_template));
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gst_element_add_pad (GST_ELEMENT_CAST (video_recordingbin),
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video_recordingbin->ghostpad);
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}
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static gboolean
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gst_video_recording_bin_create_elements (GstVideoRecordingBin * vrbin)
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{
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GstElement *csp;
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GstElement *enc;
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GstElement *mux;
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GstElement *sink;
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GstPad *pad = NULL;
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if (vrbin->elements_created)
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return TRUE;
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/* create elements */
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csp = gst_element_factory_make ("ffmpegcolorspace", "vrbin-csp");
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if (!csp)
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goto error;
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enc = gst_element_factory_make ("theoraenc", "vrbin-enc");
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if (!enc)
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goto error;
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mux = gst_element_factory_make ("oggmux", "vrbin-mux");
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if (!mux)
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goto error;
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sink = gst_element_factory_make ("filesink", "vrbin-sink");
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if (!sink)
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goto error;
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g_object_set (sink, "location", "cap.ogg", NULL);
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/* add and link */
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gst_bin_add_many (GST_BIN_CAST (vrbin), csp, enc, mux, sink, NULL);
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if (!gst_element_link_many (csp, enc, mux, sink, NULL))
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goto error;
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/* add ghostpad */
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pad = gst_element_get_static_pad (csp, "sink");
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if (!gst_ghost_pad_set_target (GST_GHOST_PAD (vrbin->ghostpad), pad))
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goto error;
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vrbin->elements_created = TRUE;
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return TRUE;
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error:
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if (pad)
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gst_object_unref (pad);
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return FALSE;
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}
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static GstStateChangeReturn
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gst_video_recording_bin_change_state (GstElement * element,
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GstStateChange trans)
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{
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GstVideoRecordingBin *vrbin = GST_VIDEO_RECORDING_BIN_CAST (element);
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switch (trans) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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if (!gst_video_recording_bin_create_elements (vrbin)) {
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return GST_STATE_CHANGE_FAILURE;
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}
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, trans);
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switch (trans) {
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case GST_STATE_CHANGE_READY_TO_NULL:
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break;
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default:
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break;
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}
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return ret;
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}
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gboolean
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gst_video_recording_bin_plugin_init (GstPlugin * plugin)
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{
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return gst_element_register (plugin, "videorecordingbin", GST_RANK_NONE,
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gst_video_recording_bin_get_type ());
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}
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55
gst/camerabin2/gstvideorecordingbin.h
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55
gst/camerabin2/gstvideorecordingbin.h
Normal file
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@ -0,0 +1,55 @@
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/* GStreamer
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* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@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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#ifndef _GST_VIDEO_RECORDING_BIN_H_
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#define _GST_VIDEO_RECORDING_BIN_H_
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_RECORDING_BIN (gst_video_recording_bin_get_type())
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#define GST_VIDEO_RECORDING_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_RECORDING_BIN,GstVideoRecordingBin))
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#define GST_VIDEO_RECORDING_BIN_CAST(obj) ((GstVideoRecordingBin *) obj)
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#define GST_VIDEO_RECORDING_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_RECORDING_BIN,GstVideoRecordingBinClass))
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#define GST_IS_VIDEO_RECORDING_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_RECORDING_BIN))
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#define GST_IS_VIDEO_RECORDING_BIN_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_RECORDING_BIN))
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typedef struct _GstVideoRecordingBin GstVideoRecordingBin;
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typedef struct _GstVideoRecordingBinClass GstVideoRecordingBinClass;
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struct _GstVideoRecordingBin
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{
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GstBin bin;
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GstPad *ghostpad;
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gboolean elements_created;
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};
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struct _GstVideoRecordingBinClass
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{
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GstBinClass bin_class;
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};
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GType gst_video_recording_bin_get_type (void);
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gboolean gst_video_recording_bin_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif
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