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Log an error message if failed to set write or read socket as non-blocking. CID 1139608 CID 1139609
842 lines
24 KiB
C
842 lines
24 KiB
C
/* GStreamer
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* Copyright (C) <2008> Edward Hervey <bilboed@bilboed.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-hdv1394src
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*
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* Read MPEG-TS data from firewire port.
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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-1.0 hdv1394src ! queue ! decodebin name=d ! queue ! xvimagesink d. ! queue ! alsasink
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* ]| captures from the firewire port and plays the streams.
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* |[
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* gst-launch-1.0 hdv1394src ! queue ! filesink location=mydump.ts
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* ]| capture to a disk file
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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 <unistd.h>
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#include <sys/poll.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <libavc1394/avc1394.h>
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#include <libavc1394/avc1394_vcr.h>
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#include <libavc1394/rom1394.h>
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#include <libraw1394/raw1394.h>
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#include <libiec61883/iec61883.h>
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#include <gst/gst.h>
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#include "gsthdv1394src.h"
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#include "gst1394probe.h"
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#define CONTROL_STOP 'S' /* stop the select call */
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#define CONTROL_SOCKETS(src) src->control_sock
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#define WRITE_SOCKET(src) src->control_sock[1]
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#define READ_SOCKET(src) src->control_sock[0]
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#define SEND_COMMAND(src, command) \
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G_STMT_START { \
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int G_GNUC_UNUSED _res; unsigned char c; c = command; \
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_res = write (WRITE_SOCKET(src), &c, 1); \
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} G_STMT_END
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#define READ_COMMAND(src, command, res) \
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G_STMT_START { \
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res = read(READ_SOCKET(src), &command, 1); \
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} G_STMT_END
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GST_DEBUG_CATEGORY_STATIC (hdv1394src_debug);
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#define GST_CAT_DEFAULT (hdv1394src_debug)
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#define DEFAULT_PORT -1
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#define DEFAULT_CHANNEL 63
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#define DEFAULT_USE_AVC TRUE
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#define DEFAULT_GUID 0
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enum
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{
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PROP_0,
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PROP_PORT,
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PROP_CHANNEL,
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PROP_USE_AVC,
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PROP_GUID,
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PROP_DEVICE_NAME
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};
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static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS
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("video/mpegts,systemstream=(boolean)true,packetsize=(int)188")
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);
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static void gst_hdv1394src_uri_handler_init (gpointer g_iface,
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gpointer iface_data);
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static void gst_hdv1394src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_hdv1394src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_hdv1394src_dispose (GObject * object);
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static gboolean gst_hdv1394src_start (GstBaseSrc * bsrc);
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static gboolean gst_hdv1394src_stop (GstBaseSrc * bsrc);
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static gboolean gst_hdv1394src_unlock (GstBaseSrc * bsrc);
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static GstFlowReturn gst_hdv1394src_create (GstPushSrc * psrc,
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GstBuffer ** buf);
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static void gst_hdv1394src_update_device_name (GstHDV1394Src * src);
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#define gst_hdv1394src_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstHDV1394Src, gst_hdv1394src, GST_TYPE_PUSH_SRC,
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G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
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gst_hdv1394src_uri_handler_init));
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static void
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gst_hdv1394src_class_init (GstHDV1394SrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSrcClass *gstbasesrc_class;
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GstPushSrcClass *gstpushsrc_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesrc_class = (GstBaseSrcClass *) klass;
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gstpushsrc_class = (GstPushSrcClass *) klass;
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gobject_class->set_property = gst_hdv1394src_set_property;
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gobject_class->get_property = gst_hdv1394src_get_property;
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gobject_class->dispose = gst_hdv1394src_dispose;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
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g_param_spec_int ("port", "Port", "Port number (-1 automatic)",
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-1, 16, DEFAULT_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CHANNEL,
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g_param_spec_int ("channel", "Channel", "Channel number for listening",
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0, 64, DEFAULT_CHANNEL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_USE_AVC,
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g_param_spec_boolean ("use-avc", "Use AV/C", "Use AV/C VTR control",
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DEFAULT_USE_AVC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_GUID,
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g_param_spec_uint64 ("guid", "GUID",
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"select one of multiple DV devices by its GUID. use a hexadecimal "
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"like 0xhhhhhhhhhhhhhhhh. (0 = no guid)", 0, G_MAXUINT64,
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DEFAULT_GUID, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstHDV1394Src:device-name:
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*
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* Descriptive name of the currently opened device
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*/
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEVICE_NAME,
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g_param_spec_string ("device-name", "device name",
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"user-friendly name of the device", "Default",
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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gstbasesrc_class->negotiate = NULL;
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gstbasesrc_class->start = gst_hdv1394src_start;
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gstbasesrc_class->stop = gst_hdv1394src_stop;
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gstbasesrc_class->unlock = gst_hdv1394src_unlock;
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gstpushsrc_class->create = gst_hdv1394src_create;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_set_static_metadata (gstelement_class,
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"Firewire (1394) HDV video source", "Source/Video",
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"Source for MPEG-TS video data from firewire port",
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"Edward Hervey <bilboed@bilboed.com>");
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GST_DEBUG_CATEGORY_INIT (hdv1394src_debug, "hdv1394src", 0,
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"MPEG-TS firewire source");
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}
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static void
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gst_hdv1394src_init (GstHDV1394Src * dv1394src)
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{
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GstPad *srcpad = GST_BASE_SRC_PAD (dv1394src);
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gst_base_src_set_live (GST_BASE_SRC (dv1394src), TRUE);
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gst_pad_use_fixed_caps (srcpad);
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dv1394src->port = DEFAULT_PORT;
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dv1394src->channel = DEFAULT_CHANNEL;
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dv1394src->use_avc = DEFAULT_USE_AVC;
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dv1394src->guid = DEFAULT_GUID;
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dv1394src->uri = g_strdup_printf ("hdv://%d", dv1394src->port);
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dv1394src->device_name = g_strdup_printf ("Default");
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READ_SOCKET (dv1394src) = -1;
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WRITE_SOCKET (dv1394src) = -1;
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dv1394src->frame_sequence = 0;
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}
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static void
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gst_hdv1394src_dispose (GObject * object)
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{
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GstHDV1394Src *src = GST_HDV1394SRC (object);
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g_free (src->uri);
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src->uri = NULL;
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g_free (src->device_name);
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src->device_name = NULL;
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_hdv1394src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstHDV1394Src *filter = GST_HDV1394SRC (object);
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switch (prop_id) {
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case PROP_PORT:
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filter->port = g_value_get_int (value);
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g_free (filter->uri);
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filter->uri = g_strdup_printf ("hdv://%d", filter->port);
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break;
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case PROP_CHANNEL:
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filter->channel = g_value_get_int (value);
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break;
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case PROP_USE_AVC:
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filter->use_avc = g_value_get_boolean (value);
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break;
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case PROP_GUID:
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filter->guid = g_value_get_uint64 (value);
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gst_hdv1394src_update_device_name (filter);
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break;
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default:
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break;
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}
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}
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static void
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gst_hdv1394src_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstHDV1394Src *filter = GST_HDV1394SRC (object);
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switch (prop_id) {
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case PROP_PORT:
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g_value_set_int (value, filter->port);
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break;
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case PROP_CHANNEL:
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g_value_set_int (value, filter->channel);
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break;
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case PROP_USE_AVC:
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g_value_set_boolean (value, filter->use_avc);
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break;
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case PROP_GUID:
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g_value_set_uint64 (value, filter->guid);
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break;
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case PROP_DEVICE_NAME:
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g_value_set_string (value, filter->device_name);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstHDV1394Src *
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gst_hdv1394src_from_raw1394handle (raw1394handle_t handle)
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{
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iec61883_mpeg2_t mpeg2 = (iec61883_mpeg2_t) raw1394_get_userdata (handle);
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return GST_HDV1394SRC (iec61883_mpeg2_get_callback_data (mpeg2));
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}
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/* Within one loop iteration (which may call _receive() many times), it seems
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* as though '*data' will always be different.
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*
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* We can therefore assume that any '*data' given to us will stay allocated until
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* the next loop iteration.
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*/
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static int
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gst_hdv1394src_iec61883_receive (unsigned char *data, int len,
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unsigned int dropped, void *cbdata)
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{
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GstHDV1394Src *dv1394src = GST_HDV1394SRC (cbdata);
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GST_LOG ("data:%p, len:%d, dropped:%d", data, len, dropped);
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/* error out if we don't have enough room ! */
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if (G_UNLIKELY (dv1394src->outoffset > (2048 * 188 - len)))
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return -1;
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if (G_LIKELY (len == IEC61883_MPEG2_TSP_SIZE)) {
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memcpy ((guint8 *) dv1394src->outdata + dv1394src->outoffset, data, len);
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dv1394src->outoffset += len;
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}
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dv1394src->frame_sequence++;
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return 0;
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}
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/*
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* When an ieee1394 bus reset happens, usually a device has been removed
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* or added. We send a message on the message bus with the node count
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* and whether the capture device used in this element connected, disconnected
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* or was unchanged
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* Message structure:
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* nodecount - integer with number of nodes on bus
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* current-device-change - integer (1 if device connected, 0 if no change to
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* current device status, -1 if device disconnected)
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*/
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static int
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gst_hdv1394src_bus_reset (raw1394handle_t handle, unsigned int generation)
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{
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GstHDV1394Src *src;
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gint nodecount;
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GstMessage *message;
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GstStructure *structure;
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gint current_device_change;
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gint i;
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src = gst_hdv1394src_from_raw1394handle (handle);
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GST_INFO_OBJECT (src, "have bus reset");
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/* update generation - told to do so by docs */
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raw1394_update_generation (handle, generation);
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nodecount = raw1394_get_nodecount (handle);
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/* allocate memory for portinfo */
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/* current_device_change is -1 if camera disconnected, 0 if other device
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* connected or 1 if camera has now connected */
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current_device_change = -1;
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for (i = 0; i < nodecount; i++) {
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if (src->guid == rom1394_get_guid (handle, i)) {
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/* Camera is with us */
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GST_DEBUG ("Camera is with us");
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if (!src->connected) {
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current_device_change = 1;
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src->connected = TRUE;
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} else
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current_device_change = 0;
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}
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}
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if (src->connected && current_device_change == -1) {
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GST_DEBUG ("Camera has disconnected");
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src->connected = FALSE;
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} else if (!src->connected && current_device_change == -1) {
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GST_DEBUG ("Camera is still not with us");
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current_device_change = 0;
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}
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structure = gst_structure_new ("ieee1394-bus-reset", "nodecount", G_TYPE_INT,
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nodecount, "current-device-change", G_TYPE_INT, current_device_change,
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NULL);
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message = gst_message_new_element (GST_OBJECT (src), structure);
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gst_element_post_message (GST_ELEMENT (src), message);
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return 0;
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}
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static GstFlowReturn
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gst_hdv1394src_create (GstPushSrc * psrc, GstBuffer ** buf)
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{
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GstHDV1394Src *dv1394src = GST_HDV1394SRC (psrc);
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struct pollfd pollfds[2];
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pollfds[0].fd = raw1394_get_fd (dv1394src->handle);
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pollfds[0].events = POLLIN | POLLERR | POLLHUP | POLLPRI;
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pollfds[1].fd = READ_SOCKET (dv1394src);
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pollfds[1].events = POLLIN | POLLERR | POLLHUP | POLLPRI;
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/* allocate a 2048 samples buffer */
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dv1394src->outdata = g_malloc (2048 * 188);
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dv1394src->outoffset = 0;
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GST_DEBUG ("Create...");
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while (TRUE) {
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int res = poll (pollfds, 2, -1);
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GST_LOG ("res:%d", res);
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if (G_UNLIKELY (res < 0)) {
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if (errno == EAGAIN || errno == EINTR)
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continue;
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else
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goto error_while_polling;
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}
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if (G_UNLIKELY (pollfds[1].revents)) {
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char command;
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if (pollfds[1].revents & POLLIN)
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READ_COMMAND (dv1394src, command, res);
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goto told_to_stop;
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} else if (G_LIKELY (pollfds[0].revents & POLLIN)) {
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int pt;
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pt = dv1394src->frame_sequence;
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/* shouldn't block in theory */
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GST_LOG ("Iterating ! (%d)", dv1394src->frame_sequence);
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raw1394_loop_iterate (dv1394src->handle);
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GST_LOG ("After iteration : %d (diff:%d)",
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dv1394src->frame_sequence, dv1394src->frame_sequence - pt);
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if (dv1394src->outoffset)
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break;
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}
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}
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g_assert (dv1394src->outoffset);
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GST_LOG ("We have some frames (%u bytes)", (guint) dv1394src->outoffset);
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/* Create the buffer */
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*buf = gst_buffer_new_wrapped (dv1394src->outdata, dv1394src->outoffset);
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dv1394src->outdata = NULL;
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dv1394src->outoffset = 0;
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return GST_FLOW_OK;
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error_while_polling:
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{
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GST_ELEMENT_ERROR (dv1394src, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
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return GST_FLOW_EOS;
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}
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told_to_stop:
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{
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GST_DEBUG_OBJECT (dv1394src, "told to stop, shutting down");
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return GST_FLOW_FLUSHING;
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}
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}
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static int
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gst_hdv1394src_discover_avc_node (GstHDV1394Src * src)
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{
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int node = -1;
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int i, j = 0;
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int m = src->num_ports;
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if (src->port >= 0) {
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/* search on explicit port */
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j = src->port;
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m = j + 1;
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}
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/* loop over all our ports */
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for (; j < m && node == -1; j++) {
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raw1394handle_t handle;
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struct raw1394_portinfo pinf[16];
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/* open the port */
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handle = raw1394_new_handle ();
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if (!handle) {
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GST_WARNING ("raw1394 - failed to get handle: %s.\n", strerror (errno));
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continue;
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}
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if (raw1394_get_port_info (handle, pinf, 16) < 0) {
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GST_WARNING ("raw1394 - failed to get port info: %s.\n",
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strerror (errno));
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goto next;
|
|
}
|
|
|
|
/* tell raw1394 which host adapter to use */
|
|
if (raw1394_set_port (handle, j) < 0) {
|
|
GST_WARNING ("raw1394 - failed to set set port: %s.\n", strerror (errno));
|
|
goto next;
|
|
}
|
|
|
|
/* now loop over all the nodes */
|
|
for (i = 0; i < raw1394_get_nodecount (handle); i++) {
|
|
/* are we looking for an explicit GUID ? */
|
|
if (src->guid != 0) {
|
|
if (src->guid == rom1394_get_guid (handle, i)) {
|
|
node = i;
|
|
src->port = j;
|
|
g_free (src->uri);
|
|
src->uri = g_strdup_printf ("dv://%d", src->port);
|
|
break;
|
|
}
|
|
} else {
|
|
rom1394_directory rom_dir;
|
|
|
|
/* select first AV/C Tape Recorder Player node */
|
|
if (rom1394_get_directory (handle, i, &rom_dir) < 0) {
|
|
GST_WARNING ("error reading config rom directory for node %d\n", i);
|
|
continue;
|
|
}
|
|
if ((rom1394_get_node_type (&rom_dir) == ROM1394_NODE_TYPE_AVC) &&
|
|
avc1394_check_subunit_type (handle, i, AVC1394_SUBUNIT_TYPE_VCR)) {
|
|
node = i;
|
|
src->port = j;
|
|
src->guid = rom1394_get_guid (handle, i);
|
|
g_free (src->uri);
|
|
src->uri = g_strdup_printf ("dv://%d", src->port);
|
|
g_free (src->device_name);
|
|
src->device_name = g_strdup (rom_dir.label);
|
|
break;
|
|
}
|
|
rom1394_free_directory (&rom_dir);
|
|
}
|
|
}
|
|
next:
|
|
raw1394_destroy_handle (handle);
|
|
}
|
|
return node;
|
|
}
|
|
|
|
static gboolean
|
|
gst_hdv1394src_start (GstBaseSrc * bsrc)
|
|
{
|
|
GstHDV1394Src *src = GST_HDV1394SRC (bsrc);
|
|
int control_sock[2];
|
|
|
|
src->connected = FALSE;
|
|
|
|
if (socketpair (PF_UNIX, SOCK_STREAM, 0, control_sock) < 0)
|
|
goto socket_pair;
|
|
|
|
READ_SOCKET (src) = control_sock[0];
|
|
WRITE_SOCKET (src) = control_sock[1];
|
|
|
|
if (fcntl (READ_SOCKET (src), F_SETFL, O_NONBLOCK) < 0)
|
|
GST_ERROR_OBJECT (src, "failed to make read socket non-blocking: %s",
|
|
g_strerror (errno));
|
|
if (fcntl (WRITE_SOCKET (src), F_SETFL, O_NONBLOCK) < 0)
|
|
GST_ERROR_OBJECT (src, "failed to make write socket non-blocking: %s",
|
|
g_strerror (errno));
|
|
|
|
src->handle = raw1394_new_handle ();
|
|
|
|
if (!src->handle) {
|
|
if (errno == EACCES)
|
|
goto permission_denied;
|
|
else if (errno == ENOENT)
|
|
goto not_found;
|
|
else
|
|
goto no_handle;
|
|
}
|
|
|
|
src->num_ports = raw1394_get_port_info (src->handle, src->pinfo, 16);
|
|
|
|
if (src->num_ports == 0)
|
|
goto no_ports;
|
|
|
|
if (src->use_avc || src->port == -1)
|
|
src->avc_node = gst_hdv1394src_discover_avc_node (src);
|
|
|
|
/* lets destroy handle and create one on port
|
|
this is more reliable than setting port on
|
|
the existing handle */
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = raw1394_new_handle_on_port (src->port);
|
|
if (!src->handle)
|
|
goto cannot_set_port;
|
|
|
|
raw1394_set_userdata (src->handle, src);
|
|
raw1394_set_bus_reset_handler (src->handle, gst_hdv1394src_bus_reset);
|
|
|
|
{
|
|
nodeid_t m_node = (src->avc_node | 0xffc0);
|
|
int m_channel = -1;
|
|
int m_bandwidth = 0;
|
|
int m_outputPort = -1;
|
|
int m_inputPort = -1;
|
|
|
|
m_channel = iec61883_cmp_connect (src->handle, m_node, &m_outputPort,
|
|
raw1394_get_local_id (src->handle), &m_inputPort, &m_bandwidth);
|
|
|
|
if (m_channel >= 0) {
|
|
src->channel = m_channel;
|
|
}
|
|
}
|
|
|
|
|
|
if ((src->iec61883mpeg2 =
|
|
iec61883_mpeg2_recv_init (src->handle,
|
|
gst_hdv1394src_iec61883_receive, src)) == NULL)
|
|
goto cannot_initialise_dv;
|
|
|
|
#if 0
|
|
raw1394_set_iso_handler (src->handle, src->channel,
|
|
gst_hdv1394src_iso_receive);
|
|
#endif
|
|
|
|
GST_DEBUG_OBJECT (src, "successfully opened up 1394 connection");
|
|
src->connected = TRUE;
|
|
|
|
if (iec61883_mpeg2_recv_start (src->iec61883mpeg2, src->channel) != 0)
|
|
goto cannot_start;
|
|
#if 0
|
|
if (raw1394_start_iso_rcv (src->handle, src->channel) < 0)
|
|
goto cannot_start;
|
|
#endif
|
|
|
|
if (src->use_avc) {
|
|
raw1394handle_t avc_handle = raw1394_new_handle_on_port (src->port);
|
|
|
|
GST_LOG ("We have an avc_handle");
|
|
|
|
/* start the VCR */
|
|
if (avc_handle) {
|
|
if (!avc1394_vcr_is_recording (avc_handle, src->avc_node)
|
|
&& avc1394_vcr_is_playing (avc_handle, src->avc_node)
|
|
!= AVC1394_VCR_OPERAND_PLAY_FORWARD) {
|
|
GST_LOG ("Calling avc1394_vcr_play()");
|
|
avc1394_vcr_play (avc_handle, src->avc_node);
|
|
}
|
|
raw1394_destroy_handle (avc_handle);
|
|
} else {
|
|
GST_WARNING_OBJECT (src, "Starting VCR via avc1394 failed: %s",
|
|
g_strerror (errno));
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
socket_pair:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
|
|
GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
permission_denied:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
not_found:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL), GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
no_handle:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
|
|
("can't get raw1394 handle (%s)", g_strerror (errno)));
|
|
return FALSE;
|
|
}
|
|
no_ports:
|
|
{
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = NULL;
|
|
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
|
|
("no ports available for raw1394"));
|
|
return FALSE;
|
|
}
|
|
cannot_set_port:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
|
|
("can't set 1394 port %d", src->port));
|
|
return FALSE;
|
|
}
|
|
cannot_start:
|
|
{
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = NULL;
|
|
iec61883_mpeg2_close (src->iec61883mpeg2);
|
|
src->iec61883mpeg2 = NULL;
|
|
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
|
|
("can't start 1394 iso receive"));
|
|
return FALSE;
|
|
}
|
|
cannot_initialise_dv:
|
|
{
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = NULL;
|
|
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
|
|
("can't initialise iec61883 hdv"));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_hdv1394src_stop (GstBaseSrc * bsrc)
|
|
{
|
|
GstHDV1394Src *src = GST_HDV1394SRC (bsrc);
|
|
|
|
close (READ_SOCKET (src));
|
|
close (WRITE_SOCKET (src));
|
|
READ_SOCKET (src) = -1;
|
|
WRITE_SOCKET (src) = -1;
|
|
|
|
iec61883_mpeg2_close (src->iec61883mpeg2);
|
|
#if 0
|
|
raw1394_stop_iso_rcv (src->handle, src->channel);
|
|
#endif
|
|
|
|
if (src->use_avc) {
|
|
raw1394handle_t avc_handle = raw1394_new_handle_on_port (src->port);
|
|
|
|
/* pause and stop the VCR */
|
|
if (avc_handle) {
|
|
if (!avc1394_vcr_is_recording (avc_handle, src->avc_node)
|
|
&& (avc1394_vcr_is_playing (avc_handle, src->avc_node)
|
|
!= AVC1394_VCR_OPERAND_PLAY_FORWARD_PAUSE))
|
|
avc1394_vcr_pause (avc_handle, src->avc_node);
|
|
avc1394_vcr_stop (avc_handle, src->avc_node);
|
|
raw1394_destroy_handle (avc_handle);
|
|
} else {
|
|
GST_WARNING_OBJECT (src, "Starting VCR via avc1394 failed: %s",
|
|
g_strerror (errno));
|
|
}
|
|
}
|
|
|
|
raw1394_destroy_handle (src->handle);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_hdv1394src_unlock (GstBaseSrc * bsrc)
|
|
{
|
|
GstHDV1394Src *src = GST_HDV1394SRC (bsrc);
|
|
|
|
SEND_COMMAND (src, CONTROL_STOP);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_hdv1394src_update_device_name (GstHDV1394Src * src)
|
|
{
|
|
raw1394handle_t handle;
|
|
gint portcount, port, nodecount, node;
|
|
rom1394_directory directory;
|
|
|
|
g_free (src->device_name);
|
|
src->device_name = NULL;
|
|
|
|
GST_LOG_OBJECT (src, "updating device name for current GUID");
|
|
|
|
handle = raw1394_new_handle ();
|
|
|
|
if (handle == NULL)
|
|
goto gethandle_failed;
|
|
|
|
portcount = raw1394_get_port_info (handle, NULL, 0);
|
|
for (port = 0; port < portcount; port++) {
|
|
if (raw1394_set_port (handle, port) >= 0) {
|
|
nodecount = raw1394_get_nodecount (handle);
|
|
for (node = 0; node < nodecount; node++) {
|
|
if (src->guid == rom1394_get_guid (handle, node)) {
|
|
if (rom1394_get_directory (handle, node, &directory) >= 0) {
|
|
g_free (src->device_name);
|
|
src->device_name = g_strdup (directory.label);
|
|
rom1394_free_directory (&directory);
|
|
goto done;
|
|
} else {
|
|
GST_WARNING ("error reading rom directory for node %d", node);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
src->device_name = g_strdup ("Unknown"); /* FIXME: translate? */
|
|
|
|
done:
|
|
|
|
raw1394_destroy_handle (handle);
|
|
return;
|
|
|
|
/* ERRORS */
|
|
gethandle_failed:
|
|
{
|
|
GST_WARNING ("failed to get raw1394 handle: %s", g_strerror (errno));
|
|
src->device_name = g_strdup ("Unknown"); /* FIXME: translate? */
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*** GSTURIHANDLER INTERFACE *************************************************/
|
|
|
|
static GstURIType
|
|
gst_hdv1394src_uri_get_type (GType type)
|
|
{
|
|
return GST_URI_SRC;
|
|
}
|
|
|
|
static const gchar *const *
|
|
gst_hdv1394src_uri_get_protocols (GType type)
|
|
{
|
|
static const gchar *protocols[] = { (char *) "hdv", NULL };
|
|
|
|
return protocols;
|
|
}
|
|
|
|
static gchar *
|
|
gst_hdv1394src_uri_get_uri (GstURIHandler * handler)
|
|
{
|
|
GstHDV1394Src *gst_hdv1394src = GST_HDV1394SRC (handler);
|
|
|
|
return gst_hdv1394src->uri;
|
|
}
|
|
|
|
static gboolean
|
|
gst_hdv1394src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
|
|
GError ** error)
|
|
{
|
|
gchar *protocol, *location;
|
|
gboolean ret = TRUE;
|
|
GstHDV1394Src *gst_hdv1394src = GST_HDV1394SRC (handler);
|
|
|
|
protocol = gst_uri_get_protocol (uri);
|
|
if (strcmp (protocol, "hdv") != 0) {
|
|
g_free (protocol);
|
|
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
|
|
"Invalid HDV URI");
|
|
return FALSE;
|
|
}
|
|
g_free (protocol);
|
|
|
|
location = gst_uri_get_location (uri);
|
|
if (location && *location != '\0')
|
|
gst_hdv1394src->port = strtol (location, NULL, 10);
|
|
else
|
|
gst_hdv1394src->port = DEFAULT_PORT;
|
|
g_free (location);
|
|
g_free (gst_hdv1394src->uri);
|
|
gst_hdv1394src->uri = g_strdup_printf ("hdv://%d", gst_hdv1394src->port);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_hdv1394src_uri_handler_init (gpointer g_iface, gpointer iface_data)
|
|
{
|
|
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
|
|
|
|
iface->get_type = gst_hdv1394src_uri_get_type;
|
|
iface->get_protocols = gst_hdv1394src_uri_get_protocols;
|
|
iface->get_uri = gst_hdv1394src_uri_get_uri;
|
|
iface->set_uri = gst_hdv1394src_uri_set_uri;
|
|
}
|