--- /dev/null
+/*****************************************************************************
+ * select.c: Select individual es to enable or disable from stream
+ *****************************************************************************
+ * Copyright (C) 2006-2011 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Jean-Paul Saman <jpsaman@videolan.org>
+ * Based upon autodel.c written by: Christophe Massiot <massiot@via.ecp.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_sout.h>
+#include <vlc_block.h>
+#include <vlc_network.h>
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+#define PORT_TEXT N_("Command UDP port")
+#define PORT_LONGTEXT N_( \
+ "UDP port to listen to for commands (show | enable <pid> | disable <pid>)." )
+
+#define DISABLE_TEXT N_("Disable ES id")
+#define DISABLE_LONGTEXT N_( \
+ "Disable ES id at startup." )
+
+#define SOUT_CFG_PREFIX "sout-select-"
+
+vlc_module_begin ()
+ set_shortname(N_("Select"))
+ set_description(N_("Select individual es to enable or disable from stream"))
+ set_capability("sout stream", 50 )
+ add_integer(SOUT_CFG_PREFIX "port", 5001, PORT_TEXT, PORT_LONGTEXT, true)
+ add_integer(SOUT_CFG_PREFIX "disable", -1, DISABLE_TEXT, DISABLE_LONGTEXT, false)
+ add_shortcut("select")
+ set_callbacks(Open, Close)
+vlc_module_end ()
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static sout_stream_id_t *Add (sout_stream_t *, es_format_t *);
+static int Del (sout_stream_t *, sout_stream_id_t *);
+static int Send (sout_stream_t *, sout_stream_id_t *, block_t *);
+
+static void* Command(vlc_object_t *);
+
+struct sout_stream_id_t
+{
+ sout_stream_id_t *id;
+ es_format_t fmt;
+ bool b_error;
+ bool b_enabled;
+};
+
+struct sout_stream_sys_t
+{
+ sout_stream_id_t **pp_es;
+ int i_es_num;
+
+ vlc_mutex_t es_lock;
+ int i_fd;
+ int i_id_disable;
+};
+
+static const char *const ppsz_sout_options[] = {
+ "disable", "port", NULL
+};
+
+/*****************************************************************************
+ * Open:
+ *****************************************************************************/
+static int Open(vlc_object_t *p_this)
+{
+ sout_stream_t *p_stream = (sout_stream_t*)p_this;
+ sout_stream_sys_t *p_sys;
+
+ p_sys = malloc(sizeof(sout_stream_sys_t));
+ if (!p_sys)
+ return VLC_ENOMEM;
+
+ if (!p_stream->p_next)
+ {
+ msg_Err( p_stream, "cannot create chain" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+
+ config_ChainParse(p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
+ p_stream->p_cfg);
+
+ int port = var_CreateGetInteger(p_stream, SOUT_CFG_PREFIX "port");
+ p_sys->i_fd = net_ListenUDP1(VLC_OBJECT(p_stream), NULL, port);
+ if (p_sys->i_fd < 0)
+ {
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ p_sys->i_id_disable = var_CreateGetInteger(p_stream, SOUT_CFG_PREFIX "disable");
+
+ p_sys->pp_es = NULL;
+ p_sys->i_es_num = 0;
+
+ p_stream->pf_add = Add;
+ p_stream->pf_del = Del;
+ p_stream->pf_send = Send;
+
+ p_stream->p_sys = p_sys;
+
+ vlc_mutex_init(&p_sys->es_lock);
+
+ if (vlc_thread_create(p_stream, Command, VLC_THREAD_PRIORITY_LOW))
+ {
+ vlc_mutex_destroy(&p_sys->es_lock);
+ free(p_sys);
+ return VLC_EGENERIC;
+ }
+
+ /* update p_sout->i_out_pace_nocontrol */
+ p_stream->p_sout->i_out_pace_nocontrol++;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Close:
+ *****************************************************************************/
+static void Close (vlc_object_t * p_this)
+{
+ sout_stream_t *p_stream = (sout_stream_t*)p_this;
+ sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
+
+ net_Close( p_sys->i_fd );
+ p_sys->i_fd = -1;
+
+ vlc_thread_join(p_stream);
+
+ vlc_mutex_destroy(&p_sys->es_lock);
+
+ p_stream->p_sout->i_out_pace_nocontrol--;
+
+ free(p_sys);
+}
+
+/****************************************************************************
+ * Command Thread:
+ ****************************************************************************/
+static void* Command(vlc_object_t *p_this)
+{
+ sout_stream_t *p_stream = (sout_stream_t *)p_this;
+ sout_stream_sys_t *p_sys = p_stream->p_sys;
+
+ int canc = vlc_savecancel();
+
+ while (vlc_object_alive(p_stream))
+ {
+ if (p_sys->i_fd < 0)
+ break;
+
+ char psz_buffer[20];
+
+ int i_len = recv(p_sys->i_fd, psz_buffer, sizeof(psz_buffer)-1, 0);
+ if (i_len < 4)
+ continue;
+
+ psz_buffer[i_len] = '\0';
+ msg_Info( p_stream, "command: %s", psz_buffer );
+
+ if (strncmp(psz_buffer, "show", 4) == 0)
+ {
+ vlc_mutex_lock(&p_sys->es_lock);
+ for (int i = 0; i < p_sys->i_es_num; i++)
+ {
+ i_len = snprintf(psz_buffer, sizeof(psz_buffer), "%.4s : %d",
+ (char *)&p_sys->pp_es[i]->fmt.i_codec,
+ p_sys->pp_es[i]->fmt.i_id);
+ psz_buffer[i_len] = '\0';
+ msg_Info(p_stream, psz_buffer);
+ }
+ vlc_mutex_unlock(&p_sys->es_lock);
+ }
+ else
+ {
+ bool b_apply = false;
+ bool b_select = false;
+ int i_pid = 0x1FFF;
+
+ if (strncmp(psz_buffer, "enable", 6) == 0)
+ {
+ i_pid = atol(psz_buffer+7);
+ b_select = true;
+ b_apply = true;
+ }
+ else if (strncmp(psz_buffer, "disable", 7) == 0)
+ {
+ i_pid = atol(psz_buffer+8);
+ b_apply = true;
+ }
+
+ if (b_apply)
+ {
+ vlc_mutex_lock(&p_sys->es_lock);
+ for (int i = 0; i < p_sys->i_es_num; i++)
+ {
+ msg_Info(p_stream, "elementary stream pid %d",
+ p_sys->pp_es[i]->fmt.i_id);
+ if (p_sys->pp_es[i]->fmt.i_id == i_pid)
+ {
+ p_sys->pp_es[i]->b_enabled = b_select;
+ msg_Info(p_stream, "%s: %d", b_select ? "enable" : "disable", i_pid);
+ }
+ }
+ vlc_mutex_unlock(&p_sys->es_lock);
+ }
+ }
+ }
+
+ vlc_restorecancel(canc);
+ return NULL;
+}
+
+static sout_stream_id_t *Add(sout_stream_t *p_stream, es_format_t *p_fmt)
+{
+ sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
+ sout_stream_id_t *p_es = malloc(sizeof(sout_stream_id_t));
+ if( !p_es )
+ return NULL;
+
+ p_es->fmt = *p_fmt;
+ p_es->id = NULL;
+ p_es->b_error = false;
+ p_es->b_enabled = (p_es->fmt.i_id == p_sys->i_id_disable) ? false : true;
+
+ vlc_mutex_lock(&p_sys->es_lock);
+ TAB_APPEND(p_sys->i_es_num, p_sys->pp_es, p_es);
+ vlc_mutex_unlock(&p_sys->es_lock);
+
+ return p_es;
+}
+
+static int Del(sout_stream_t *p_stream, sout_stream_id_t *p_es)
+{
+ sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
+ sout_stream_id_t *id = p_es->id;
+
+ vlc_mutex_lock(&p_sys->es_lock);
+ TAB_REMOVE(p_sys->i_es_num, p_sys->pp_es, p_es);
+ vlc_mutex_unlock(&p_sys->es_lock);
+
+ free(p_es);
+
+ if (id != NULL)
+ return p_stream->p_next->pf_del(p_stream->p_next, id);
+ else
+ return VLC_SUCCESS;
+}
+
+static int Send(sout_stream_t *p_stream, sout_stream_id_t *p_es,
+ block_t *p_buffer)
+{
+ if (p_es->id == NULL && p_es->b_error != true)
+ {
+ p_es->id = p_stream->p_next->pf_add(p_stream->p_next, &p_es->fmt);
+ if (p_es->id == NULL)
+ {
+ p_es->b_error = true;
+ msg_Err(p_stream, "couldn't create chain for id %d",
+ p_es->fmt.i_id);
+ }
+ }
+
+ if ((p_es->b_error != true) && p_es->b_enabled)
+ p_stream->p_next->pf_send(p_stream->p_next, p_es->id, p_buffer);
+ else
+ block_ChainRelease(p_buffer);
+
+ return VLC_SUCCESS;
+}
projects / vlc / commitdiff