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gstreamer/ext/raw1394/gsthdv1394src.c

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/* GStreamer
* Copyright (C) <2008> Edward Hervey <bilboed@bilboed.com>
*
* 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:element-hdv1394src
*
* Read MPEG-TS data from firewire port.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch hdv1394src ! queue ! decodebin name=d ! queue ! xvimagesink d. ! queue ! alsasink
* ]| captures from the firewire port and plays the streams.
* |[
* gst-launch hdv1394src ! queue ! filesink location=mydump.ts
* ]| capture to a disk file
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <unistd.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <libavc1394/avc1394.h>
#include <libavc1394/avc1394_vcr.h>
#include <libavc1394/rom1394.h>
#include <libraw1394/raw1394.h>
#include <libiec61883/iec61883.h>
#include <gst/gst.h>
#include "gsthdv1394src.h"
#include "gst1394probe.h"
#define CONTROL_STOP 'S' /* stop the select call */
#define CONTROL_SOCKETS(src) src->control_sock
#define WRITE_SOCKET(src) src->control_sock[1]
#define READ_SOCKET(src) src->control_sock[0]
#define SEND_COMMAND(src, command) \
G_STMT_START { \
int G_GNUC_UNUSED _res; unsigned char c; c = command; \
_res = write (WRITE_SOCKET(src), &c, 1); \
} G_STMT_END
#define READ_COMMAND(src, command, res) \
G_STMT_START { \
res = read(READ_SOCKET(src), &command, 1); \
} G_STMT_END
GST_DEBUG_CATEGORY_STATIC (hdv1394src_debug);
#define GST_CAT_DEFAULT (hdv1394src_debug)
#define DEFAULT_PORT -1
#define DEFAULT_CHANNEL 63
#define DEFAULT_USE_AVC TRUE
#define DEFAULT_GUID 0
enum
{
PROP_0,
PROP_PORT,
PROP_CHANNEL,
PROP_USE_AVC,
PROP_GUID,
PROP_DEVICE_NAME
};
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS
("video/mpegts,systemstream=(boolean)true,packetsize=(int)188")
);
static void gst_hdv1394src_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static void gst_hdv1394src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_hdv1394src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_hdv1394src_dispose (GObject * object);
static gboolean gst_hdv1394src_start (GstBaseSrc * bsrc);
static gboolean gst_hdv1394src_stop (GstBaseSrc * bsrc);
static gboolean gst_hdv1394src_unlock (GstBaseSrc * bsrc);
static GstFlowReturn gst_hdv1394src_create (GstPushSrc * psrc,
GstBuffer ** buf);
static void gst_hdv1394src_update_device_name (GstHDV1394Src * src);
static void
_do_init (GType type)
{
static const GInterfaceInfo urihandler_info = {
gst_hdv1394src_uri_handler_init,
NULL,
NULL,
};
g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info);
gst_1394_type_add_property_probe_interface (type);
GST_DEBUG_CATEGORY_INIT (hdv1394src_debug, "hdv1394src", 0,
"MPEG-TS firewire source");
}
GST_BOILERPLATE_FULL (GstHDV1394Src, gst_hdv1394src, GstPushSrc,
GST_TYPE_PUSH_SRC, _do_init);
static void
gst_hdv1394src_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_static_pad_template (element_class, &src_factory);
gst_element_class_set_details_simple (element_class,
"Firewire (1394) HDV video source", "Source/Video",
"Source for MPEG-TS video data from firewire port",
"Edward Hervey <bilboed@bilboed.com>");
}
static void
gst_hdv1394src_class_init (GstHDV1394SrcClass * klass)
{
GObjectClass *gobject_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpushsrc_class;
gobject_class = (GObjectClass *) klass;
gstbasesrc_class = (GstBaseSrcClass *) klass;
gstpushsrc_class = (GstPushSrcClass *) klass;
gobject_class->set_property = gst_hdv1394src_set_property;
gobject_class->get_property = gst_hdv1394src_get_property;
gobject_class->dispose = gst_hdv1394src_dispose;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
g_param_spec_int ("port", "Port", "Port number (-1 automatic)",
-1, 16, DEFAULT_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CHANNEL,
g_param_spec_int ("channel", "Channel", "Channel number for listening",
0, 64, DEFAULT_CHANNEL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_USE_AVC,
g_param_spec_boolean ("use-avc", "Use AV/C", "Use AV/C VTR control",
DEFAULT_USE_AVC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_GUID,
g_param_spec_uint64 ("guid", "GUID",
"select one of multiple DV devices by its GUID. use a hexadecimal "
"like 0xhhhhhhhhhhhhhhhh. (0 = no guid)", 0, G_MAXUINT64,
DEFAULT_GUID, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstHDV1394Src:device-name
*
* Descriptive name of the currently opened device
*
* Since: 0.10.7
**/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "device name",
"user-friendly name of the device", "Default",
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
gstbasesrc_class->negotiate = NULL;
gstbasesrc_class->start = gst_hdv1394src_start;
gstbasesrc_class->stop = gst_hdv1394src_stop;
gstbasesrc_class->unlock = gst_hdv1394src_unlock;
gstpushsrc_class->create = gst_hdv1394src_create;
}
static void
gst_hdv1394src_init (GstHDV1394Src * dv1394src, GstHDV1394SrcClass * klass)
{
GstPad *srcpad = GST_BASE_SRC_PAD (dv1394src);
gst_base_src_set_live (GST_BASE_SRC (dv1394src), TRUE);
gst_pad_use_fixed_caps (srcpad);
dv1394src->port = DEFAULT_PORT;
dv1394src->channel = DEFAULT_CHANNEL;
dv1394src->use_avc = DEFAULT_USE_AVC;
dv1394src->guid = DEFAULT_GUID;
dv1394src->uri = g_strdup_printf ("hdv://%d", dv1394src->port);
dv1394src->device_name = g_strdup_printf ("Default");
READ_SOCKET (dv1394src) = -1;
WRITE_SOCKET (dv1394src) = -1;
dv1394src->frame_sequence = 0;
}
static void
gst_hdv1394src_dispose (GObject * object)
{
GstHDV1394Src *src = GST_HDV1394SRC (object);
g_free (src->uri);
src->uri = NULL;
g_free (src->device_name);
src->device_name = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_hdv1394src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstHDV1394Src *filter = GST_HDV1394SRC (object);
switch (prop_id) {
case PROP_PORT:
filter->port = g_value_get_int (value);
g_free (filter->uri);
filter->uri = g_strdup_printf ("hdv://%d", filter->port);
break;
case PROP_CHANNEL:
filter->channel = g_value_get_int (value);
break;
case PROP_USE_AVC:
filter->use_avc = g_value_get_boolean (value);
break;
case PROP_GUID:
filter->guid = g_value_get_uint64 (value);
gst_hdv1394src_update_device_name (filter);
break;
default:
break;
}
}
static void
gst_hdv1394src_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstHDV1394Src *filter = GST_HDV1394SRC (object);
switch (prop_id) {
case PROP_PORT:
g_value_set_int (value, filter->port);
break;
case PROP_CHANNEL:
g_value_set_int (value, filter->channel);
break;
case PROP_USE_AVC:
g_value_set_boolean (value, filter->use_avc);
break;
case PROP_GUID:
g_value_set_uint64 (value, filter->guid);
break;
case PROP_DEVICE_NAME:
g_value_set_string (value, filter->device_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstHDV1394Src *
gst_hdv1394src_from_raw1394handle (raw1394handle_t handle)
{
iec61883_mpeg2_t mpeg2 = (iec61883_mpeg2_t) raw1394_get_userdata (handle);
return GST_HDV1394SRC (iec61883_mpeg2_get_callback_data (mpeg2));
}
/* Within one loop iteration (which may call _receive() many times), it seems
* as though '*data' will always be different.
*
* We can therefore assume that any '*data' given to us will stay allocated until
* the next loop iteration.
*/
static int
gst_hdv1394src_iec61883_receive (unsigned char *data, int len,
unsigned int dropped, void *cbdata)
{
GstHDV1394Src *dv1394src = GST_HDV1394SRC (cbdata);
GST_LOG ("data:%p, len:%d, dropped:%d", data, len, dropped);
/* error out if we don't have enough room ! */
if (G_UNLIKELY (dv1394src->outoffset > (2048 * 188 - len)))
return -1;
if (G_LIKELY (len == IEC61883_MPEG2_TSP_SIZE)) {
memcpy ((guint8 *) dv1394src->outdata + dv1394src->outoffset, data, len);
dv1394src->outoffset += len;
}
dv1394src->frame_sequence++;
return 0;
}
/*
* When an ieee1394 bus reset happens, usually a device has been removed
* or added. We send a message on the message bus with the node count
* and whether the capture device used in this element connected, disconnected
* or was unchanged
* Message structure:
* nodecount - integer with number of nodes on bus
* current-device-change - integer (1 if device connected, 0 if no change to
* current device status, -1 if device disconnected)
*/
static int
gst_hdv1394src_bus_reset (raw1394handle_t handle, unsigned int generation)
{
GstHDV1394Src *src;
gint nodecount;
GstMessage *message;
GstStructure *structure;
gint current_device_change;
gint i;
src = gst_hdv1394src_from_raw1394handle (handle);
GST_INFO_OBJECT (src, "have bus reset");
/* update generation - told to do so by docs */
raw1394_update_generation (handle, generation);
nodecount = raw1394_get_nodecount (handle);
/* allocate memory for portinfo */
/* current_device_change is -1 if camera disconnected, 0 if other device
* connected or 1 if camera has now connected */
current_device_change = -1;
for (i = 0; i < nodecount; i++) {
if (src->guid == rom1394_get_guid (handle, i)) {
/* Camera is with us */
GST_DEBUG ("Camera is with us");
if (!src->connected) {
current_device_change = 1;
src->connected = TRUE;
} else
current_device_change = 0;
}
}
if (src->connected && current_device_change == -1) {
GST_DEBUG ("Camera has disconnected");
src->connected = FALSE;
} else if (!src->connected && current_device_change == -1) {
GST_DEBUG ("Camera is still not with us");
current_device_change = 0;
}
structure = gst_structure_new ("ieee1394-bus-reset", "nodecount", G_TYPE_INT,
nodecount, "current-device-change", G_TYPE_INT, current_device_change,
NULL);
message = gst_message_new_element (GST_OBJECT (src), structure);
gst_element_post_message (GST_ELEMENT (src), message);
return 0;
}
static GstFlowReturn
gst_hdv1394src_create (GstPushSrc * psrc, GstBuffer ** buf)
{
GstHDV1394Src *dv1394src = GST_HDV1394SRC (psrc);
GstCaps *caps;
struct pollfd pollfds[2];
pollfds[0].fd = raw1394_get_fd (dv1394src->handle);
pollfds[0].events = POLLIN | POLLERR | POLLHUP | POLLPRI;
pollfds[1].fd = READ_SOCKET (dv1394src);
pollfds[1].events = POLLIN | POLLERR | POLLHUP | POLLPRI;
/* allocate a 2048 samples buffer */
dv1394src->outdata = g_malloc (2048 * 188);
dv1394src->outoffset = 0;
GST_DEBUG ("Create...");
while (TRUE) {
int res = poll (pollfds, 2, -1);
GST_LOG ("res:%d", res);
if (G_UNLIKELY (res < 0)) {
if (errno == EAGAIN || errno == EINTR)
continue;
else
goto error_while_polling;
}
if (G_UNLIKELY (pollfds[1].revents)) {
char command;
if (pollfds[1].revents & POLLIN)
READ_COMMAND (dv1394src, command, res);
goto told_to_stop;
} else if (G_LIKELY (pollfds[0].revents & POLLIN)) {
int pt;
pt = dv1394src->frame_sequence;
/* shouldn't block in theory */
GST_LOG ("Iterating ! (%d)", dv1394src->frame_sequence);
raw1394_loop_iterate (dv1394src->handle);
GST_LOG ("After iteration : %d (diff:%d)",
dv1394src->frame_sequence, dv1394src->frame_sequence - pt);
if (dv1394src->outoffset)
break;
}
}
g_assert (dv1394src->outoffset);
GST_LOG ("We have some frames (%u bytes)", (guint) dv1394src->outoffset);
/* Create the buffer */
*buf = gst_buffer_new ();
GST_BUFFER_DATA (*buf) = dv1394src->outdata;
GST_BUFFER_MALLOCDATA (*buf) = dv1394src->outdata;
GST_BUFFER_SIZE (*buf) = dv1394src->outoffset;
dv1394src->outdata = NULL;
dv1394src->outoffset = 0;
caps = gst_pad_get_caps (GST_BASE_SRC_PAD (psrc));
gst_buffer_set_caps (*buf, caps);
gst_caps_unref (caps);
return GST_FLOW_OK;
error_while_polling:
{
GST_ELEMENT_ERROR (dv1394src, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
return GST_FLOW_UNEXPECTED;
}
told_to_stop:
{
GST_DEBUG_OBJECT (dv1394src, "told to stop, shutting down");
return GST_FLOW_WRONG_STATE;
}
}
static int
gst_hdv1394src_discover_avc_node (GstHDV1394Src * src)
{
int node = -1;
int i, j = 0;
int m = src->num_ports;
if (src->port >= 0) {
/* search on explicit port */
j = src->port;
m = j + 1;
}
/* loop over all our ports */
for (; j < m && node == -1; j++) {
raw1394handle_t handle;
struct raw1394_portinfo pinf[16];
/* open the port */
handle = raw1394_new_handle ();
if (!handle) {
GST_WARNING ("raw1394 - failed to get handle: %s.\n", strerror (errno));
continue;
}
if (raw1394_get_port_info (handle, pinf, 16) < 0) {
GST_WARNING ("raw1394 - failed to get port info: %s.\n",
strerror (errno));
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];
fcntl (READ_SOCKET (src), F_SETFL, O_NONBLOCK);
fcntl (WRITE_SOCKET (src), F_SETFL, O_NONBLOCK);
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);
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 guint
gst_hdv1394src_uri_get_type (void)
{
return GST_URI_SRC;
}
static gchar **
gst_hdv1394src_uri_get_protocols (void)
{
static gchar *protocols[] = { (char *) "hdv", NULL };
return protocols;
}
static const 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)
{
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);
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;
}
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