/* rtp_player.c
*
* $Id: rtp_player.c 23322 2007-10-31 15:16:33Z bondolo $
*
* Copyright 2006, Alejandro Vaquero <alejandrovaquero@yahoo.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* 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 02111-1307, USA.
*/
/*
* Here is a summary on how this works:
* - The VoipCalls will call add_rtp_packet() every time there is an RTP
* packet
* - add_rtp_packet() will add the RTP packet in a RTP stream struct, and
* create the RTP stream if it is the first RTP in the stream.
* - Each new RTP stream will be added to a list of RTP stream, called
* rtp_streams_list
* - When the user clicks "Player" in the VoipCall dialogue,
* rtp_player_init() is called.
* - rtp_player_init() create the main dialog, and it calls:
* + mark_rtp_stream_to_play() to mark the RTP streams that needs to be
* displayed. These are the RTP stream that match the selected calls in
* the VoipCall dlg.
* + decode_rtp_stream() this will decode the RTP packets in each RTP
* stream, and will also create the RTP channles. An RTP channel is a
* group of RTP stream that have in common the source and destination
* IP and UPD ports. The RTP channels is what the user will listen in
* one of the two Audio channles.
* The RTP channels are stored in the hash table rtp_channels_hash
* + add_channel_to_window() will create and add the Audio graphic
* representation in the main window
* - When the user click the check box to listen one of the Audio channels,
* the structure rtp_channels is filled to play one or two RTP channels
* (a max of two channels can be listened at a given moment)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_LIBPORTAUDIO
/* TODO: The RTP Player it is only supported for GTK >=2 */
#include <gtk/gtk.h>
#if GTK_MAJOR_VERSION >= 2
#include <epan/stats_tree.h>
#include <epan/addr_resolv.h>
#include <string.h>
#include <glib.h>
#include "globals.h"
#include "portaudio.h"
#include "simple_dialog.h"
#include "gui_utils.h"
#include "dlg_utils.h"
#include "compat_macros.h"
#include "graph_analysis.h"
#include "voip_calls_dlg.h"
#include "voip_calls.h"
#include "gtkglobals.h"
#include <epan/dissectors/packet-rtp.h>
#include <epan/rtp_pt.h>
#include <epan/codecs.h>
#include "rtp_player.h"
#include "codecs/G711a/G711adecode.h"
#include "codecs/G711u/G711udecode.h"
#include <math.h>
#ifndef min
#define min(a,b) (((a)<(b))?(a):(b))
#endif
#ifndef max
#define max(a,b) (((a)>(b))?(a):(b))
#endif
/*define this symbol to compile with G729 and G723 codecs*/
/*#define HAVE_G729_G723 1*/
#ifdef HAVE_G729_G723
#include "codecs/G729/G729decode.h"
#include "codecs/G723/G723decode.h"
#endif /* HAVE_G729_G723 */
static gboolean initialized = FALSE;
voip_calls_tapinfo_t *voip_calls = NULL;
/* Hash table with all the RTP streams */
static GHashTable* rtp_streams_hash = NULL;
/* List with all the RTP streams (this is used to decode them as it is sorted)*/
static GList* rtp_streams_list = NULL;
/* the window */
static GtkWidget *rtp_player_dlg_w;
static GtkWidget *channels_vb;
static GtkWidget *main_scrolled_window = NULL;
static GtkWidget *jitter_spinner;
static GtkWidget *bt_decode;
static GtkWidget *bt_play;
static GtkWidget *bt_pause;
static GtkWidget *bt_stop;
static GtkWidget *progress_bar;
static GtkWidget *info_bar;
static GtkWidget *stat_hbox;
static guint32 total_packets;
static guint32 total_frames;
static guint32 progbar_count;
static int new_jitter_buff;
/* a hash table with the RTP streams to play per audio channel */
static GHashTable *rtp_channels_hash = NULL;
/* Port Audio staff */
#define SAMPLE_RATE (8000)
#define NUM_CHANNELS (2)
#define PA_SAMPLE_TYPE paInt16
typedef gint16 SAMPLE;
#define SAMPLE_SILENCE (0)
#define FRAMES_PER_BUFFER (512)
typedef struct _sample_t {
SAMPLE val;
guint8 status;
} sample_t;
#define S_NORMAL 0
#define S_DROP_BY_JITT 1
#define S_WRONG_SEQ 2
/* Display channels constants */
#define MULT 80
#define CHANNEL_WIDTH 500
#define CHANNEL_HEIGHT 100
#define MAX_TIME_LABEL 10
#define HEIGHT_TIME_LABEL 18
#define MAX_NUM_COL_CONV 10
#if PORTAUDIO_API_1
PortAudioStream *pa_stream;
#else /* PORTAUDIO_API_1 */
PaStream *pa_stream;
#endif /* PORTAUDIO_API_1 */
/* defines a RTP stream */
typedef struct _rtp_stream_info {
address src_addr;
guint16 src_port;
address dest_addr;
guint16 dest_port;
guint32 ssrc;
guint32 first_frame_number; /* first RTP frame for the stream */
double start_time; /* RTP stream start time in ms */
gboolean play;
guint16 call_num;
GList* rtp_packets_list; /* List of RTP packets in the stream */
guint32 num_packets;
} rtp_stream_info_t;
/* defines the RTP streams to be played in an audio channel */
typedef struct _rtp_channel_info {
double start_time; /* RTP stream start time in ms */
double end_time; /* RTP stream end time in ms */
GArray *samples; /* the array with decoded audio */
guint16 call_num;
gboolean selected;
guint32 frame_index;
guint32 drop_by_jitter_buff;
guint32 out_of_seq;
guint32 max_frame_index;
GtkWidget *check_bt;
GtkWidget *separator;
GtkWidget *scroll_window;
GtkWidget *draw_area;
GdkPixmap *pixmap;
GtkAdjustment *h_scrollbar_adjustment;
GdkPixbuf* cursor_pixbuf;
#if PORTAUDIO_API_1
PaTimestamp cursor_prev;
#else /* PORTAUDIO_API_1 */
PaTime cursor_prev;
#endif /* PORTAUDIO_API_1 */
GdkGC *bg_gc[MAX_NUM_COL_CONV+1];
gboolean cursor_catch;
rtp_stream_info_t *first_stream; /* This is the first RTP stream in the channel */
guint32 num_packets;
} rtp_channel_info_t;
/* defines a RTP packet */
typedef struct _rtp_packet {
struct _rtp_info *info; /* the RTP dissected info */
double arrive_offset; /* arrive offset time since the begining of the stream in ms */
guint8* payload_data;
} rtp_packet_t;
/* defines the two RTP channels to be played */
typedef struct _rtp_play_channles {
rtp_channel_info_t* rci[2]; /* Channels to be played */
guint32 start_index[2];
guint32 end_index[2];
int channel;
guint32 max_frame_index;
guint32 frame_index;
gboolean pause;
gboolean stop;
gint32 pause_duration;
#if PORTAUDIO_API_1
PaTimestamp out_diff_time;
#else /* PORTAUDIO_API_1 */
PaTime out_diff_time;
PaTime pa_start_time;
#endif /* PORTAUDIO_API_1 */
} rtp_play_channles_t;
/* The two RTP channles to play */
static rtp_play_channles_t *rtp_channels = NULL;
typedef struct _rtp_decoder_t {
codec_handle_t handle;
void *context;
} rtp_decoder_t;
/****************************************************************************/
static void
rtp_key_destroy(gpointer key)
{
g_free(key);
key = NULL;
}
/****************************************************************************/
static void
rtp_channel_value_destroy(gpointer rci_arg)
{
rtp_channel_info_t *rci = rci_arg;
g_array_free(rci->samples, TRUE);
g_free(rci);
rci = NULL;
}
/****************************************************************************/
static void
rtp_stream_value_destroy(gpointer rsi_arg)
{
rtp_stream_info_t *rsi = rsi_arg;
GList* rtp_packets_list;
rtp_packet_t *rp;
rtp_packets_list = g_list_first(rsi->rtp_packets_list);
while (rtp_packets_list)
{
rp = rtp_packets_list->data;
g_free(rp->info);
g_free(rp->payload_data);
g_free(rp);
rp = NULL;
rtp_packets_list = g_list_next(rtp_packets_list);
}
g_free(rsi);
rsi = NULL;
}
/****************************************************************************/
static void
rtp_decoder_value_destroy(gpointer dec_arg)
{
rtp_decoder_t *dec = dec_arg;
if (dec->handle)
codec_release(dec->handle, dec->context);
g_free(dec_arg);
}
/****************************************************************************/
static void
set_sensitive_check_bt(gchar *key _U_ , rtp_channel_info_t *rci, guint *stop _U_ )
{
gtk_widget_set_sensitive(rci->check_bt, !(*stop));
}
/****************************************************************************/
static void
bt_state(gboolean decode, gboolean play, gboolean pause, gboolean stop)
{
gboolean new_jitter_value = FALSE;
gboolean false_val = FALSE;
gtk_widget_set_sensitive(bt_decode, decode);
gtk_widget_set_sensitive(jitter_spinner, decode);
if (new_jitter_buff != (int) gtk_spin_button_get_value((GtkSpinButton * )jitter_spinner)) {
new_jitter_value = TRUE;
}
/* set the sensitive state of play only if there is a channel selected */
if ( play && (rtp_channels->rci[0] || rtp_channels->rci[1]) && !new_jitter_value) {
gtk_widget_set_sensitive(bt_play, TRUE);
} else {
gtk_widget_set_sensitive(bt_play, FALSE);
}
if (!new_jitter_value) {
gtk_widget_set_sensitive(bt_pause, pause);
gtk_widget_set_sensitive(bt_stop, stop);
/* Set sensitive to the check buttons based on the STOP state */
if (rtp_channels_hash)
g_hash_table_foreach( rtp_channels_hash, (GHFunc)set_sensitive_check_bt, &stop);
} else {
gtk_widget_set_sensitive(bt_pause, FALSE);
gtk_widget_set_sensitive(bt_stop, FALSE);
if (rtp_channels_hash)
g_hash_table_foreach( rtp_channels_hash, (GHFunc)set_sensitive_check_bt, &false_val);
}
}
/****************************************************************************/
void
add_rtp_packet(const struct _rtp_info *rtp_info, packet_info *pinfo)
{
rtp_stream_info_t *stream_info = NULL;
rtp_packet_t *new_rtp_packet;
GString *key_str = NULL;
/* create the the streams hash if it doen't exist */
if (!rtp_streams_hash)
rtp_streams_hash = g_hash_table_new_full( g_str_hash, g_str_equal, rtp_key_destroy, rtp_stream_value_destroy);
/* Create a hash key to lookup in the RTP streams hash table
* uses: src_ip:src_port dst_ip:dst_port ssrc
*/
key_str = g_string_new("");
g_string_printf(key_str, "%s:%d %s:%d %d", get_addr_name(&(pinfo->src)),
pinfo->srcport, get_addr_name(&(pinfo->dst)),
pinfo->destport, rtp_info->info_sync_src );
/* lookup for this rtp packet in the stream hash table*/
stream_info = g_hash_table_lookup( rtp_streams_hash, key_str->str);
/* if it is not in the hash table, create a new stream */
if (stream_info==NULL) {
stream_info = g_malloc(sizeof(rtp_stream_info_t));
COPY_ADDRESS(&(stream_info->src_addr), &(pinfo->src));
stream_info->src_port = pinfo->srcport;
COPY_ADDRESS(&(stream_info->dest_addr), &(pinfo->dst));
stream_info->dest_port = pinfo->destport;
stream_info->ssrc = rtp_info->info_sync_src;
stream_info->rtp_packets_list = NULL;
stream_info->first_frame_number = pinfo->fd->num;
stream_info->start_time = nstime_to_msec(&pinfo->fd->rel_ts);
stream_info->call_num = 0;
stream_info->play = FALSE;
stream_info->num_packets = 0;
g_hash_table_insert(rtp_streams_hash, g_strdup(key_str->str), stream_info);
/* Add the element to the List too. The List is used to decode the packets because it is sordted */
rtp_streams_list = g_list_append(rtp_streams_list, stream_info);
}
/* increment the number of packets in this stream, this is used for the progress bar and statistics*/
stream_info->num_packets++;
/* Add the RTP packet to the list */
new_rtp_packet = g_malloc(sizeof(rtp_packet_t));
new_rtp_packet->info = g_malloc(sizeof(struct _rtp_info));
memcpy(new_rtp_packet->info, rtp_info, sizeof(struct _rtp_info));
new_rtp_packet->arrive_offset = nstime_to_msec(&pinfo->fd->rel_ts) - stream_info->start_time;
/* copy the RTP payload to the rtp_packet to be decoded later */
if (rtp_info->info_payload_len) {
new_rtp_packet->payload_data = g_malloc(rtp_info->info_payload_len);
memcpy(new_rtp_packet->payload_data, &(rtp_info->info_data[rtp_info->info_payload_offset]), rtp_info->info_payload_len);
} else {
new_rtp_packet->payload_data = NULL;
}
stream_info->rtp_packets_list = g_list_append(stream_info->rtp_packets_list, new_rtp_packet);
g_string_free(key_str, TRUE);
}
/****************************************************************************/
/* Mark the RTP stream to be played. Use the voip_calls graph to see if the
* setup_frame is there and then if the associated voip_call is selected.
*/
static void
mark_rtp_stream_to_play(gchar *key _U_ , rtp_stream_info_t *rsi, gpointer ptr _U_)
{
GList* graph_list;
graph_analysis_item_t *graph_item;
GList* voip_calls_list;
voip_calls_info_t *tmp_voip_call;
/* Reset the "to be play" value because the user can close and reopen the RTP Player window
* and the streams are nor reset in that case
*/
rsi->play = FALSE;
/* and associate the RTP stream with a call using the first RTP in the stream*/
graph_list = g_list_first(voip_calls->graph_analysis->list);
while (graph_list)
{
graph_item = graph_list->data;
if (rsi->first_frame_number == graph_item->frame_num) {
rsi->call_num = graph_item->conv_num;
/* if it is in the graph list, then check if the voip_call is selected */
voip_calls_list = g_list_first(voip_calls->strinfo_list);
while (voip_calls_list)
{
tmp_voip_call = voip_calls_list->data;
if ( (tmp_voip_call->call_num == rsi->call_num) && (tmp_voip_call->selected == TRUE) ) {
rsi->play = TRUE;
total_packets += rsi->num_packets;
break;
}
voip_calls_list = g_list_next(voip_calls_list);
}
break;
}
graph_list = g_list_next(graph_list);
}
}
/****************************************************************************/
/* Decode a RTP packet
* Return the number of decoded bytes
*/
static int
decode_rtp_packet(rtp_packet_t *rp, SAMPLE **out_buff, GHashTable *decoders_hash)
{
unsigned int payload_type;
const gchar *p;
rtp_decoder_t *decoder;
SAMPLE *tmp_buff = NULL;
int tmp_buff_len;
int decoded_bytes = 0;
if ((rp->payload_data == NULL) || (rp->info->info_payload_len == 0) ) {
return 0;
}
payload_type = rp->info->info_payload_type;
/* Look for registered codecs */
decoder = g_hash_table_lookup(decoders_hash, GUINT_TO_POINTER(payload_type));
if (!decoder) { /* Put either valid or empty decoder into the hash table */
decoder = g_malloc(sizeof(rtp_decoder_t));
decoder->handle = NULL;
decoder->context = NULL;
p = match_strval(payload_type, rtp_payload_type_short_vals);
if (p) {
decoder->handle = find_codec(p);
if (decoder->handle)
decoder->context = codec_init(decoder->handle);
}
g_hash_table_insert(decoders_hash, GUINT_TO_POINTER(payload_type), decoder);
}
if (decoder->handle) { /* Decode with registered codec */
tmp_buff_len = codec_decode(decoder->handle, decoder->context, rp->payload_data, rp->info->info_payload_len, NULL, NULL);
tmp_buff = g_malloc(tmp_buff_len);
decoded_bytes = codec_decode(decoder->handle, decoder->context, rp->payload_data, rp->info->info_payload_len, tmp_buff, &tmp_buff_len);
*out_buff = tmp_buff;
return decoded_bytes;
}
/* Try to decode with built-in codec */
switch (payload_type) {
case PT_PCMU: /* G.711 u-law */
tmp_buff = g_malloc(sizeof(SAMPLE) * rp->info->info_payload_len * 1);
decodeG711u(rp->payload_data, rp->info->info_payload_len,
tmp_buff, &decoded_bytes);
break;
case PT_PCMA: /* G.711 A-law */
tmp_buff = g_malloc(sizeof(SAMPLE) * rp->info->info_payload_len * 1);
decodeG711a(rp->payload_data, rp->info->info_payload_len,
tmp_buff, &decoded_bytes);
break;
#ifdef HAVE_G729_G723
case PT_G729: /* G.729 */
tmp_buff = g_malloc(sizeof(SAMPLE) * rp->info->info_payload_len * 8); /* G729 8kbps => 64kbps/8kbps = 8 */
decodeG729(rp->payload_data, rp->info->info_payload_len,
tmp_buff, &decoded_bytes);
break;
case PT_G723: /* G.723 */
if (rp->info->info_payload_len%24 == 0) /* G723 High 6.4kbps */
tmp_buff = g_malloc(sizeof(SAMPLE) * rp->info->info_payload_len * 10); /* G723 High 64kbps/6.4kbps = 10 */
else if (rp->info->info_payload_len%20 == 0) /* G723 Low 5.3kbps */
tmp_buff = g_malloc(sizeof(SAMPLE) * rp->info->info_payload_len * 13); /* G723 High 64kbps/5.3kbps = 13 */
else {
return 0;
}
decodeG723(rp->payload_data, rp->info->info_payload_len,
tmp_buff, &decoded_bytes);
break;
#endif /* HAVE_G729_G723 */
default:
/*
* XXX - return an error here, so the user gets told that
* we don't support this codec!
*/
break;
}
*out_buff = tmp_buff;
return decoded_bytes;
}
/****************************************************************************/
static void
update_progress_bar(gfloat percentage)
{
gtk_progress_bar_update(GTK_PROGRESS_BAR(progress_bar), percentage);
/* Force gtk to redraw the window before starting decoding the packet */
while (gtk_events_pending())
gtk_main_iteration();
}
/****************************************************************************/
/* Decode the RTP streams and add them to the RTP channels struct
*/
static void
decode_rtp_stream(rtp_stream_info_t *rsi, gpointer ptr _U_)
{
GString *key_str = NULL;
rtp_channel_info_t *rci;
gboolean first = TRUE;
GList* rtp_packets_list;
rtp_packet_t *rp;
int i;
double rtp_time;
double rtp_time_prev;
double arrive_time;
double arrive_time_prev;
double start_time;
double start_rtp_time = 0;
double diff;
double pack_period;
double total_time;
double total_time_prev;
gint32 silence_frames;
int seq;
double delay;
double prev_diff;
double mean_delay;
double variation;
int decoded_bytes;
int decoded_bytes_prev;
int jitter_buff;
SAMPLE *out_buff = NULL;
sample_t silence;
sample_t sample;
guint8 status;
guint32 start_timestamp;
GHashTable *decoders_hash = NULL;
guint32 progbar_nextstep;
int progbar_quantum;
gfloat progbar_val;
silence.val = 0;
silence.status = S_NORMAL;
/* skip it if we are not going to play it */
if (rsi->play == FALSE) {
return;
}
/* get the static jitter buffer from the spinner gui */
jitter_buff = (int) gtk_spin_button_get_value((GtkSpinButton * )jitter_spinner);
/* Create a hash key to lookup in the RTP channels hash
* uses: src_ip:src_port dst_ip:dst_port call_num
*/
key_str = g_string_new("");
g_string_printf(key_str, "%s:%d %s:%d %d", get_addr_name(&(rsi->src_addr)),
rsi->src_port, get_addr_name(&(rsi->dest_addr)),
rsi->dest_port, rsi->call_num );
/* create the rtp_channels_hash table if it doesn't exist */
if (!rtp_channels_hash) {
rtp_channels_hash = g_hash_table_new_full( g_str_hash, g_str_equal, rtp_key_destroy, rtp_channel_value_destroy);
}
/* lookup for this stream in the channel hash table */
rci = g_hash_table_lookup( rtp_channels_hash, key_str->str);
/* ..if it is not in the hash, create an entry */
if (rci == NULL) {
rci = g_malloc(sizeof(rtp_channel_info_t));
rci->call_num = rsi->call_num;
rci->start_time = rsi->start_time;
rci->end_time = rsi->start_time;
rci->selected = FALSE;
rci->frame_index = 0;
rci->drop_by_jitter_buff = 0;
rci->out_of_seq = 0;
rci->max_frame_index = 0;
rci->samples = g_array_new (FALSE, FALSE, sizeof(sample_t));
rci->check_bt = NULL;
rci->separator = NULL;
rci->draw_area = NULL;
rci->pixmap = NULL;
rci->h_scrollbar_adjustment = NULL;
rci->cursor_pixbuf = NULL;
rci->cursor_prev = 0;
rci->cursor_catch = FALSE;
rci->first_stream = rsi;
rci->num_packets = rsi->num_packets;
g_hash_table_insert(rtp_channels_hash, g_strdup(key_str->str), rci);
} else {
/* Add silence between the two streams if needed */
silence_frames = (gint32)( ((rsi->start_time - rci->end_time)/1000)*SAMPLE_RATE );
for (i = 0; i< silence_frames; i++) {
g_array_append_val(rci->samples, silence);
}
rci->num_packets += rsi->num_packets;
}
/* decode the RTP stream */
first = TRUE;
rtp_time = 0;
rtp_time_prev = 0;
decoded_bytes = 0;
decoded_bytes_prev = 0;
silence_frames = 0;
arrive_time = start_time = 0;
arrive_time_prev = 0;
pack_period = 0;
total_time = 0;
total_time_prev = 0;
seq = 0;
delay = 0;
prev_diff = 0;
mean_delay = 0;
variation = 0;
start_timestamp = 0;
decoders_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, rtp_decoder_value_destroy);
/* we update the progress bar 100 times */
/* Update the progress bar when it gets to this value. */
progbar_nextstep = 0;
/* When we reach the value that triggers a progress bar update,
bump that value by this amount. */
progbar_quantum = total_packets/100;
status = S_NORMAL;
rtp_packets_list = g_list_first(rsi->rtp_packets_list);
while (rtp_packets_list)
{
if (progbar_count >= progbar_nextstep) {
g_assert(total_packets > 0);
progbar_val = (gfloat) progbar_count / total_packets;
update_progress_bar(progbar_val);
progbar_nextstep += progbar_quantum;
}
rp = rtp_packets_list->data;
if (first == TRUE) {
start_timestamp = rp->info->info_timestamp; /* defined start_timestmp to avoid overflow in timestamp. TODO: handle the timestamp correctly */
start_rtp_time = 0;
rtp_time_prev = start_rtp_time;
first = FALSE;
seq = rp->info->info_seq_num - 1;
}
decoded_bytes = decode_rtp_packet(rp, &out_buff, decoders_hash);
if (decoded_bytes == 0) {
seq = rp->info->info_seq_num;
}
rtp_time = (double)(rp->info->info_timestamp-start_timestamp)/SAMPLE_RATE - start_rtp_time;
arrive_time = (double)rp->arrive_offset/1000 - start_time;
if (rp->info->info_seq_num != seq+1){
rci->out_of_seq++;
status = S_WRONG_SEQ;
}
seq = rp->info->info_seq_num;
diff = arrive_time - rtp_time;
delay = diff - prev_diff;
prev_diff = diff;
if (delay<0) delay = -delay;
if (diff<0) diff = -diff;
total_time = (double)rp->arrive_offset/1000;
printf("seq = %d arr = %f abs_diff = %f index = %d tim = %f ji=%d jb=%f\n",rp->info->info_seq_num,
total_time, diff, rci->samples->len, ((double)rci->samples->len/8000 - total_time)*1000, 0,
(mean_delay + 4*variation)*1000);
fflush(stdout);
/* if the jitter buffer was exceeded */
if ( diff*1000 > jitter_buff ) {
printf("Packet drop by jitter buffer exceeded\n");
rci->drop_by_jitter_buff++;
status = S_DROP_BY_JITT;
/* if there was a silence period (more than two packetization period) resync the source */
if ( (rtp_time - rtp_time_prev) > pack_period*2 ){
printf("Resync...\n");
silence_frames = (gint32)((arrive_time - arrive_time_prev)*SAMPLE_RATE - decoded_bytes_prev/2);
for (i = 0; i< silence_frames; i++) {
silence.status = status;
g_array_append_val(rci->samples, silence);
/* only mark the fisrt in the silence that has the previos problem (S_DROP_BY_JITT or S_WRONG_SEQ ) */
status = S_NORMAL;
}
decoded_bytes_prev = 0;
start_timestamp = rp->info->info_timestamp; /* defined start_timestmp to avoid overflow in timestamp. TODO: handle the timestamp correctly */
start_rtp_time = 0;
start_time = (double)rp->arrive_offset/1000;
rtp_time_prev = 0;
}
} else {
/* Add silence if it is necessary */
silence_frames = (gint32)((rtp_time - rtp_time_prev)*SAMPLE_RATE - decoded_bytes_prev/2);
for (i = 0; i< silence_frames; i++) {
silence.status = status;
g_array_append_val(rci->samples, silence);
/* only mark the fisrt in the silence that has the previos problem (S_DROP_BY_JITT or S_WRONG_SEQ ) */
status = S_NORMAL;
}
status = S_NORMAL;
/* Add the audio */
for (i = 0; i< (decoded_bytes/2); i++) {
sample.val = out_buff[i];
sample.status = status;
g_array_append_val(rci->samples, sample);
}
rtp_time_prev = rtp_time;
pack_period = (double)(decoded_bytes/2)/SAMPLE_RATE;
decoded_bytes_prev = decoded_bytes;
arrive_time_prev = arrive_time;
}
if (out_buff) {
g_free(out_buff);
out_buff = NULL;
}
rtp_packets_list = g_list_next (rtp_packets_list);
progbar_count++;
}
rci->max_frame_index = rci->samples->len;
rci->end_time = rci->start_time + ((double)rci->samples->len/SAMPLE_RATE)*1000;
g_string_free(key_str, TRUE);
g_hash_table_destroy(decoders_hash);
}
/****************************************************************************/
static gint
h_scrollbar_changed(GtkWidget *widget _U_, gpointer user_data)
{
rtp_channel_info_t *rci = (rtp_channel_info_t *)user_data;
rci->cursor_catch = TRUE;
return TRUE;
}
static gboolean draw_cursors(gpointer data);
/****************************************************************************/
static void
stop_channels(void)
{
PaError err;
GtkWidget *dialog;
/* we should never be here if we are already in STOP */
if(rtp_channels->stop){
exit(10);
}
rtp_channels->stop = TRUE;
/* force a draw_cursor to stop it */
draw_cursors(NULL);
err = Pa_StopStream(pa_stream);
if( err != paNoError ) {
dialog = gtk_message_dialog_new ((GtkWindow *) rtp_player_dlg_w,
GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,GTK_BUTTONS_CLOSE,
"Can not Stop Stream in PortAudio Library.\n Error: %s", Pa_GetErrorText( err ));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
return;
}
err = Pa_CloseStream(pa_stream);
if( err != paNoError ) {
dialog = gtk_message_dialog_new ((GtkWindow *) rtp_player_dlg_w,
GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,GTK_BUTTONS_CLOSE,
"Can not Close Stream in PortAudio Library.\n Error: %s", Pa_GetErrorText( err ));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
return;
}
pa_stream = NULL; /* to catch errors better */
rtp_channels->start_index[0] = 0;
rtp_channels->start_index[1] = 0;
rtp_channels->end_index[0] = 0;
rtp_channels->end_index[1] = 0;
rtp_channels->max_frame_index = 0;
rtp_channels->frame_index = 0;
rtp_channels->pause = FALSE;
rtp_channels->pause_duration = 0;
rtp_channels->stop = TRUE;
rtp_channels->out_diff_time = 10000;
if (rtp_channels->rci[0]) rtp_channels->rci[0]->frame_index = 0;
if (rtp_channels->rci[1]) rtp_channels->rci[1]->frame_index = 0;
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(TRUE, TRUE, FALSE, FALSE);
}
/****************************************************************************/
/* Draw a cursor in a channel graph
*/
static void
draw_channel_cursor(rtp_channel_info_t *rci, guint32 start_index)
{
#if PORTAUDIO_API_1
PaTimestamp index;
#else /* PORTAUDIO_API_1 */
PaTime index;
#endif /* PORTAUDIO_API_1 */
int i;
if (!rci) return;
#if PORTAUDIO_API_1
index = Pa_StreamTime( pa_stream ) - rtp_channels->pause_duration - rtp_channels->out_diff_time - start_index;
#else /* PORTAUDIO_API_1 */
index = ((guint32)(SAMPLE_RATE) * (Pa_GetStreamTime(pa_stream)-rtp_channels->pa_start_time))- rtp_channels->pause_duration - rtp_channels->out_diff_time - start_index;
#endif /* PORTAUDIO_API_1 */
/* If we finished playing both channels, then stop them */
if ( (rtp_channels && (!rtp_channels->stop) && (!rtp_channels->pause)) && (index > rtp_channels->max_frame_index) ) {
stop_channels();
return;
}
/* If only this channel finished, then return */
if (index > rci->max_frame_index) {
return;
}
/* draw the previous saved pixbuf line */
if (rci->cursor_pixbuf && (rci->cursor_prev>=0)) {
gdk_draw_pixbuf(rci->pixmap, NULL, rci->cursor_pixbuf, 0, 0, (int) (rci->cursor_prev/MULT), 0, -1, -1, GDK_RGB_DITHER_NONE, 0 ,0);
gdk_draw_drawable(rci->draw_area->window,
rci->draw_area->style->fg_gc[GTK_WIDGET_STATE(rci->draw_area)],
rci->pixmap,
(int) (rci->cursor_prev/MULT), 0,
(int) (rci->cursor_prev/MULT), 0,
1, rci->draw_area->allocation.height-HEIGHT_TIME_LABEL);
g_object_unref(rci->cursor_pixbuf);
rci->cursor_pixbuf = NULL;
}
if (index>0 && (rci->cursor_prev>=0)) {
rci->cursor_pixbuf = gdk_pixbuf_get_from_drawable(NULL, rci->pixmap, NULL, (int) (index/MULT), 0, 0, 0, 1, rci->draw_area->allocation.height-HEIGHT_TIME_LABEL);
gdk_draw_line(rci->pixmap, rci->draw_area->style->black_gc,
(int) (index/MULT),
0,
(int) (index/MULT),
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL);
gdk_draw_drawable(rci->draw_area->window,
rci->draw_area->style->fg_gc[GTK_WIDGET_STATE(rci->draw_area)],
rci->pixmap,
(int) (index/MULT), 0,
(int) (index/MULT), 0,
1, rci->draw_area->allocation.height-HEIGHT_TIME_LABEL);
}
/* Disconnect the scroll bar "value" signal to not be called */
SIGNAL_DISCONNECT_BY_FUNC(rci->h_scrollbar_adjustment, h_scrollbar_changed, rci);
/* Move the horizontal scroll bar */
/* if ( (rci->cursor_prev/MULT < (rci->h_scrollbar_adjustment->value+rci->h_scrollbar_adjustment->page_increment)) &&
(index/MULT >= (rci->h_scrollbar_adjustment->value+rci->h_scrollbar_adjustment->page_increment)) ){
for (i=1; i<10; i++) {
rci->h_scrollbar_adjustment->value += rci->h_scrollbar_adjustment->page_size/10;
gtk_adjustment_value_changed(rci->h_scrollbar_adjustment);
}
}
*/
if (!rci->cursor_catch) {
if (index/MULT < rci->h_scrollbar_adjustment->page_size/2) {
rci->h_scrollbar_adjustment->value = rci->h_scrollbar_adjustment->lower;
} else if (index/MULT > (rci->h_scrollbar_adjustment->upper - rci->h_scrollbar_adjustment->page_size/2)) {
rci->h_scrollbar_adjustment->value = rci->h_scrollbar_adjustment->upper - rci->h_scrollbar_adjustment->page_size;
} else {
rci->h_scrollbar_adjustment->value = index/MULT - rci->h_scrollbar_adjustment->page_size/2;
}
gtk_adjustment_value_changed(rci->h_scrollbar_adjustment);
} else if ( (rci->cursor_prev/MULT < (rci->h_scrollbar_adjustment->value+rci->h_scrollbar_adjustment->page_increment)) &&
(index/MULT >= (rci->h_scrollbar_adjustment->value+rci->h_scrollbar_adjustment->page_increment)) ){
rci->cursor_catch = FALSE;
for (i=1; i<10; i++) {
rci->h_scrollbar_adjustment->value = min(rci->h_scrollbar_adjustment->upper-rci->h_scrollbar_adjustment->page_size, rci->h_scrollbar_adjustment->value + (rci->h_scrollbar_adjustment->page_size/20));
gtk_adjustment_value_changed(rci->h_scrollbar_adjustment);
}
}
/* Connect back the "value" scroll signal */
SIGNAL_CONNECT(rci->h_scrollbar_adjustment, "value_changed", h_scrollbar_changed, rci);
/* if (index/MULT < rci->h_scrollbar_adjustment->page_increment) {
rci->h_scrollbar_adjustment->value = rci->h_scrollbar_adjustment->lower;
} else if (index/MULT > (rci->h_scrollbar_adjustment->upper - rci->h_scrollbar_adjustment->page_size + rci->h_scrollbar_adjustment->page_increment)) {
rci->h_scrollbar_adjustment->value = rci->h_scrollbar_adjustment->upper - rci->h_scrollbar_adjustment->page_size;
} else {
if ( (index/MULT < rci->h_scrollbar_adjustment->value) || (index/MULT > (rci->h_scrollbar_adjustment->value+rci->h_scrollbar_adjustment->page_increment)) ){
rci->h_scrollbar_adjustment->value = index/MULT;
}
}
*/
/* if (index/MULT < rci->h_scrollbar_adjustment->page_size/2) {
rci->h_scrollbar_adjustment->value = rci->h_scrollbar_adjustment->lower;
} else if (index/MULT > (rci->h_scrollbar_adjustment->upper - rci->h_scrollbar_adjustment->page_size/2)) {
rci->h_scrollbar_adjustment->value = rci->h_scrollbar_adjustment->upper - rci->h_scrollbar_adjustment->page_size;
} else {
rci->h_scrollbar_adjustment->value = index/MULT - rci->h_scrollbar_adjustment->page_size/2;
}
*/
/* gtk_adjustment_value_changed(rci->h_scrollbar_adjustment);
*/
rci->cursor_prev = index;
}
/****************************************************************************/
/* Move and draw the cursor in the graph
*/
static gboolean
draw_cursors(gpointer data _U_)
{
if (!rtp_channels) return FALSE;
/* Draw and move each of the two channels */
draw_channel_cursor(rtp_channels->rci[0], rtp_channels->start_index[0]);
draw_channel_cursor(rtp_channels->rci[1], rtp_channels->start_index[1]);
if ((rtp_channels->stop) || (rtp_channels->pause)) return FALSE;
return TRUE;
}
/****************************************************************************/
static void
init_rtp_channels_vals(void)
{
rtp_play_channles_t *rpci = rtp_channels;
/* if we only have one channel to play, we just use the info from that channel */
if (rpci->rci[0] == NULL) {
rpci->max_frame_index = rpci->rci[1]->max_frame_index;
rpci->start_index[0] = rpci->max_frame_index;
rpci->start_index[1] = 0;
rpci->end_index[0] = rpci->max_frame_index;
rpci->end_index[1] = rpci->max_frame_index;
} else if (rpci->rci[1] == NULL) {
rpci->max_frame_index = rpci->rci[0]->max_frame_index;
rpci->start_index[1] = rpci->max_frame_index;
rpci->start_index[0] = 0;
rpci->end_index[0] = rpci->max_frame_index;
rpci->end_index[1] = rpci->max_frame_index;
/* if the two channels are to be played, then we need to sync both based on the start/end time of each one */
} else {
rpci->max_frame_index = (guint32)(SAMPLE_RATE/1000) * (guint32)(max(rpci->rci[0]->end_time, rpci->rci[1]->end_time) -
(guint32)min(rpci->rci[0]->start_time, rpci->rci[1]->start_time));
if (rpci->rci[0]->start_time < rpci->rci[1]->start_time) {
rpci->start_index[0] = 0;
rpci->start_index[1] = (guint32)(SAMPLE_RATE/1000) * (guint32)(rpci->rci[1]->start_time - rpci->rci[0]->start_time);
} else {
rpci->start_index[1] = 0;
rpci->start_index[0] = (guint32)(SAMPLE_RATE/1000) * (guint32)(rpci->rci[0]->start_time - rpci->rci[1]->start_time);
}
if (rpci->rci[0]->end_time < rpci->rci[1]->end_time) {
rpci->end_index[0] = rpci->max_frame_index - ((guint32)(SAMPLE_RATE/1000) * (guint32)(rpci->rci[1]->end_time - rpci->rci[0]->end_time));
rpci->end_index[1] = rpci->max_frame_index;
} else {
rpci->end_index[1] = rpci->max_frame_index - ((guint32)(SAMPLE_RATE/1000) * (guint32)(rpci->rci[0]->end_time - rpci->rci[1]->end_time));
rpci->end_index[0] = rpci->max_frame_index;
}
}
}
/****************************************************************************/
/* This routine will be called by the PortAudio engine when audio is needed.
* It may called at interrupt level on some machines so don't do anything
* that could mess up the system like calling malloc() or free().
*/
#if PORTAUDIO_API_1
static int paCallback( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
PaTimestamp outTime, void *userData)
{
#else /* PORTAUDIO_API_1 */
static int paCallback( const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* outTime,
PaStreamCallbackFlags statusFlags _U_,
void *userData)
{
#endif /* PORTAUDIO_API_1 */
rtp_play_channles_t *rpci = (rtp_play_channles_t*)userData;
SAMPLE *wptr = (SAMPLE*)outputBuffer;
sample_t sample;
unsigned int i;
int finished;
unsigned int framesLeft;
int framesToPlay;
/* if it is pasued, we keep the stream running but with silence only */
if (rtp_channels->pause) {
for(i=0; i<framesPerBuffer; i++ ) {
*wptr++ = 0;
*wptr++ = 0;
}
rtp_channels->pause_duration += framesPerBuffer;
return 0;
}
#if PORTAUDIO_API_1
rpci->out_diff_time = outTime - Pa_StreamTime(pa_stream) ;
#else /* PORTAUDIO_API_1 */
rpci->out_diff_time = (guint32)(SAMPLE_RATE) * (outTime->outputBufferDacTime - Pa_GetStreamTime(pa_stream)) ;
#endif /* PORTAUDIO_API_1 */
/* set the values if this is the first time */
if (rpci->max_frame_index == 0) {
init_rtp_channels_vals();
}
framesLeft = rpci->max_frame_index - rpci->frame_index;
(void) inputBuffer; /* Prevent unused variable warnings. */
(void) outTime;
if( framesLeft < framesPerBuffer )
{
framesToPlay = framesLeft;
finished = 1;
}
else
{
framesToPlay = framesPerBuffer;
finished = 0;
}
for( i=0; i<(unsigned int)framesToPlay; i++ )
{
if (rpci->rci[0] && ( (rpci->frame_index >= rpci->start_index[0]) && (rpci->frame_index <= rpci->end_index[0]) )) {
sample = g_array_index(rpci->rci[0]->samples, sample_t, rpci->rci[0]->frame_index++);
*wptr++ = sample.val;
} else {
*wptr++ = 0;
}
if (rpci->rci[1] && ( (rpci->frame_index >= rpci->start_index[1]) && (rpci->frame_index <= rpci->end_index[1]) )) {
sample = g_array_index(rpci->rci[1]->samples, sample_t, rpci->rci[1]->frame_index++);
*wptr++ = sample.val;
} else {
*wptr++ = 0;
}
}
for( ; i<framesPerBuffer; i++ )
{
*wptr++ = 0;
*wptr++ = 0;
}
rpci->frame_index += framesToPlay;
return finished;
}
/****************************************************************************/
static void
on_bt_check_clicked(GtkButton *button _U_, gpointer user_data _U_)
{
rtp_channel_info_t *rci = user_data;
if (rci->selected) {
if (rtp_channels->rci[0] == rci) {
rtp_channels->rci[0] = NULL;
rtp_channels->channel = 0;
} else {
rtp_channels->rci[1] = NULL;
rtp_channels->channel = 1;
}
} else {
/* if there are already both channels selected, unselect the old one */
if (rtp_channels->rci[rtp_channels->channel]) {
/* we disconnect the signal temporarly to avoid been called back */
SIGNAL_DISCONNECT_BY_FUNC(rtp_channels->rci[rtp_channels->channel]->check_bt, on_bt_check_clicked, rtp_channels->rci[rtp_channels->channel]);
gtk_toggle_button_set_active((GtkToggleButton *)rtp_channels->rci[rtp_channels->channel]->check_bt, FALSE);
SIGNAL_CONNECT(rtp_channels->rci[rtp_channels->channel]->check_bt, "clicked", on_bt_check_clicked, rtp_channels->rci[rtp_channels->channel]);
rtp_channels->rci[rtp_channels->channel]->selected = FALSE;
}
rtp_channels->rci[rtp_channels->channel] = rci;
rtp_channels->channel = !(rtp_channels->channel);
}
rci->selected = !(rci->selected);
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(TRUE, TRUE, FALSE, FALSE);
}
/****************************************************************************/
static void channel_draw(rtp_channel_info_t* rci)
{
int i, imax;
int j;
sample_t sample;
SAMPLE min, max;
PangoLayout *small_layout;
guint32 label_width, label_height;
char label_string[MAX_TIME_LABEL];
double offset;
guint32 progbar_nextstep;
int progbar_quantum;
gfloat progbar_val;
guint status;
GdkGC *gc;
GdkGC *red_gc;
GdkColor red_color = {0, 65535, 0, 0};
if (GDK_IS_DRAWABLE(rci->pixmap)) {
/* Clear out old plot */
gdk_draw_rectangle(rci->pixmap,
rci->bg_gc[1+rci->call_num%MAX_NUM_COL_CONV],
TRUE,
0, 0,
rci->draw_area->allocation.width,
rci->draw_area->allocation.height);
small_layout = gtk_widget_create_pango_layout(rci->draw_area, NULL);
pango_layout_set_font_description(small_layout, pango_font_description_from_string("Helvetica,Sans,Bold 7"));
/* calculated the pixel offset to display integer seconds */
offset = ((double)rci->start_time/1000 - floor((double)rci->start_time/1000))*SAMPLE_RATE/MULT;
gdk_draw_line(rci->pixmap, rci->draw_area->style->black_gc,
0,
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL,
rci->draw_area->allocation.width,
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL);
imax = min(rci->draw_area->allocation.width,(gint)(rci->samples->len/MULT));
/* we update the progress bar 100 times */
/* Update the progress bar when it gets to this value. */
progbar_nextstep = 0;
/* When we reach the value that triggers a progress bar update,
bump that value by this amount. */
progbar_quantum = imax/100;
red_gc = gdk_gc_new(rci->draw_area->window);
gdk_gc_set_rgb_fg_color(red_gc, &red_color);
for (i=0; i< imax; i++) {
sample.val = 0;
status = S_NORMAL;
max=(SAMPLE)0xFFFF;
min=(SAMPLE)0x7FFF;
if (progbar_count >= progbar_nextstep) {
g_assert(total_frames > 0);
progbar_val = (gfloat) i / imax;
update_progress_bar(progbar_val);
progbar_nextstep += progbar_quantum;
}
for (j=0; j<MULT; j++) {
sample = g_array_index(rci->samples, sample_t, i*MULT+j);
max = max(max, sample.val);
min = min(min, sample.val);
if (sample.status == S_DROP_BY_JITT) status = S_DROP_BY_JITT;
}
if (status == S_DROP_BY_JITT) {
gc = red_gc;
} else {
gc = rci->draw_area->style->black_gc;
}
gdk_draw_line(rci->pixmap, gc,
i,
(gint)(( (0x7FFF+min) * (rci->draw_area->allocation.height-HEIGHT_TIME_LABEL))/0xFFFF),
i,
(gint)(( (0x7FFF+max) * (rci->draw_area->allocation.height-HEIGHT_TIME_LABEL))/0xFFFF));
/*draw the time label and grid */
if ( !((i*MULT)%(SAMPLE_RATE)) ) {
gdk_draw_line(rci->pixmap, rci->draw_area->style->black_gc,
(int) (i - offset),
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL,
(int) (i - offset),
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL+4);
g_snprintf(label_string, MAX_TIME_LABEL, "%.0f", floor(rci->start_time/1000) + i*MULT/SAMPLE_RATE);
pango_layout_set_text(small_layout, label_string, -1);
pango_layout_get_pixel_size(small_layout, &label_width, &label_height);
gdk_draw_layout(rci->pixmap,
rci->draw_area->style->black_gc,
(int) (i - offset - label_width/2),
rci->draw_area->allocation.height - label_height,
small_layout);
/* draw the 1/2 sec grid */
} else if ( !((i*MULT)%(SAMPLE_RATE/2)) ) {
gdk_draw_line(rci->pixmap, rci->draw_area->style->black_gc,
(int) (i - offset),
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL,
(int) (i - offset),
rci->draw_area->allocation.height-HEIGHT_TIME_LABEL+2);
}
progbar_count++;
}
}
}
/****************************************************************************/
static gint expose_event_channels(GtkWidget *widget, GdkEventExpose *event)
{
rtp_channel_info_t *rci;
rci=(rtp_channel_info_t *)OBJECT_GET_DATA(widget, "rtp_channel_info_t");
if(!rci){
exit(10);
}
if (GDK_IS_DRAWABLE(widget->window))
gdk_draw_drawable(widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
rci->pixmap,
event->area.x, event->area.y,
event->area.x, event->area.y,
event->area.width, event->area.height);
return FALSE;
}
/****************************************************************************/
static gint
configure_event_channels(GtkWidget *widget, GdkEventConfigure *event _U_)
{
rtp_channel_info_t *rci;
int i;
/* the first calor is blue to highlight the selected item
* the other collors are the same as in the Voip Graph analysys
* to match the same calls
*/
static GdkColor col[MAX_NUM_COL_CONV+1] = {
{0, 0x00FF, 0x00FF, 0xFFFF},
{0, 0x33FF, 0xFFFF, 0x33FF},
{0, 0x00FF, 0xCCFF, 0xCCFF},
{0, 0x66FF, 0xFFFF, 0xFFFF},
{0, 0x99FF, 0x66FF, 0xFFFF},
{0, 0xFFFF, 0xFFFF, 0x33FF},
{0, 0xCCFF, 0x99FF, 0xFFFF},
{0, 0xCCFF, 0xFFFF, 0x33FF},
{0, 0xFFFF, 0xCCFF, 0xCCFF},
{0, 0xFFFF, 0x99FF, 0x66FF},
{0, 0xFFFF, 0xFFFF, 0x99FF}
};
rci=(rtp_channel_info_t *)OBJECT_GET_DATA(widget, "rtp_channel_info_t");
if(!rci){
exit(10);
}
if(rci->pixmap){
g_object_unref(rci->pixmap);
rci->pixmap=NULL;
}
rci->pixmap = gdk_pixmap_new(widget->window,
widget->allocation.width,
widget->allocation.height,
-1);
if ( GDK_IS_DRAWABLE(rci->pixmap) )
gdk_draw_rectangle(rci->pixmap,
widget->style->white_gc,
TRUE,
0, 0,
widget->allocation.width,
widget->allocation.height);
/* create gcs for the background color of each channel */
for (i=0; i<MAX_NUM_COL_CONV+1; i++){
rci->bg_gc[i]=gdk_gc_new(rci->pixmap);
gdk_gc_set_rgb_fg_color(rci->bg_gc[i], &col[i]);
}
channel_draw(rci);
return TRUE;
}
/****************************************************************************/
static gint
button_press_event_channel(GtkWidget *widget, GdkEventButton *event _U_)
{
rtp_channel_info_t *rci;
int this_channel;
guint32 prev_index;
rci=(rtp_channel_info_t *)OBJECT_GET_DATA(widget, "rtp_channel_info_t");
if(!rci){
exit(10);
}
if (!rci->selected) {
/* only select a new channels if we are in STOP */
if (!rtp_channels->stop) return 0;
/* if there are already both channels selected, unselect the old one */
if (rtp_channels->rci[rtp_channels->channel]) {
/* we disconnect the signal temporarly to avoid been called back */
SIGNAL_DISCONNECT_BY_FUNC(rtp_channels->rci[rtp_channels->channel]->check_bt, on_bt_check_clicked, rtp_channels->rci[rtp_channels->channel]);
gtk_toggle_button_set_active((GtkToggleButton *) rtp_channels->rci[rtp_channels->channel]->check_bt, FALSE);
SIGNAL_CONNECT(rtp_channels->rci[rtp_channels->channel]->check_bt, "clicked", on_bt_check_clicked, rtp_channels->rci[rtp_channels->channel]);
rtp_channels->rci[rtp_channels->channel]->selected = FALSE;
}
/* we disconnect the signal temporarly to avoid been called back */
SIGNAL_DISCONNECT_BY_FUNC(rci->check_bt, on_bt_check_clicked, rci);
gtk_toggle_button_set_active((GtkToggleButton *) rci->check_bt, TRUE);
SIGNAL_CONNECT(rci->check_bt, "clicked", on_bt_check_clicked, rci);
rtp_channels->rci[rtp_channels->channel] = rci;
rtp_channels->channel = !(rtp_channels->channel);
rci->selected = TRUE;
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(TRUE, TRUE, FALSE, FALSE);
}
if (rci == rtp_channels->rci[0]) {
this_channel = 0;
} else {
this_channel = 1;
}
rci->frame_index = (unsigned int) (event->x * MULT);
prev_index = rtp_channels->frame_index;
rtp_channels->frame_index = rtp_channels->start_index[this_channel] + rci->frame_index;
rtp_channels->pause_duration += prev_index - rtp_channels->frame_index;
/* change the index in the other channel if selected, according with the index position */
if (rtp_channels->rci[!this_channel]) {
init_rtp_channels_vals();
if (rtp_channels->frame_index < rtp_channels->start_index[!this_channel]) {
rtp_channels->rci[!this_channel]->frame_index = 0;
} else if (rtp_channels->frame_index > rtp_channels->end_index[!this_channel]) {
rtp_channels->rci[!this_channel]->frame_index = rtp_channels->rci[!this_channel]->max_frame_index;
} else {
rtp_channels->rci[!this_channel]->frame_index = rtp_channels->frame_index - rtp_channels->start_index[!this_channel];
}
} else {
init_rtp_channels_vals();
}
rtp_channels->out_diff_time = 0;
rci->cursor_catch = TRUE;
/* redraw the cusrsor */
draw_cursors(NULL);
return TRUE;
}
/****************************************************************************/
static void
add_channel_to_window(gchar *key _U_ , rtp_channel_info_t *rci, guint *counter _U_ )
{
GString *label = NULL;
GtkWidget *viewport;
/* create the channel draw area */
rci->draw_area=gtk_drawing_area_new();
rci->scroll_window=gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (rci->scroll_window), GTK_POLICY_ALWAYS, GTK_POLICY_NEVER);
rci->h_scrollbar_adjustment = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(rci->scroll_window));
gtk_widget_set_size_request(rci->draw_area, (gint)(rci->samples->len/MULT), CHANNEL_HEIGHT);
viewport = gtk_viewport_new(rci->h_scrollbar_adjustment, gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(rci->scroll_window)));
gtk_container_add(GTK_CONTAINER(viewport), rci->draw_area);
gtk_container_add(GTK_CONTAINER(rci->scroll_window), viewport);
gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
OBJECT_SET_DATA(rci->draw_area, "rtp_channel_info_t", rci);
gtk_widget_add_events (rci->draw_area, GDK_BUTTON_PRESS_MASK);
GTK_WIDGET_SET_FLAGS(rci->draw_area, GTK_CAN_FOCUS);
gtk_widget_grab_focus(rci->draw_area);
gtk_box_pack_start(GTK_BOX (channels_vb), rci->scroll_window, FALSE, FALSE, 0);
/* signals needed to handle backing pixmap */
SIGNAL_CONNECT(rci->draw_area, "expose_event", expose_event_channels, NULL);
SIGNAL_CONNECT(rci->draw_area, "configure_event", configure_event_channels, rci);
gtk_widget_add_events (rci->draw_area, GDK_BUTTON_PRESS_MASK);
SIGNAL_CONNECT(rci->draw_area, "button_press_event", button_press_event_channel, rci);
SIGNAL_CONNECT(rci->h_scrollbar_adjustment, "value_changed", h_scrollbar_changed, rci);
label = g_string_new("");
g_string_printf(label, "From %s:%d to %s:%d Duration:%.2f Drop by Jitter Buff:%d(%.1f%%) Out of Seq: %d(%.1f%%)", get_addr_name(&(rci->first_stream->src_addr)),
rci->first_stream->src_port, get_addr_name(&(rci->first_stream->dest_addr)), rci->first_stream->dest_port,
(double)rci->samples->len/SAMPLE_RATE, rci->drop_by_jitter_buff, (double)rci->drop_by_jitter_buff * 100 / (double)rci->num_packets
, rci->out_of_seq, (double)rci->out_of_seq * 100 / (double)rci->num_packets);
rci->check_bt = gtk_check_button_new_with_label(label->str);
gtk_box_pack_start(GTK_BOX (channels_vb), rci->check_bt, FALSE, FALSE, 1);
/* Create the Separator if it is not the last one */
(*counter)++;
if (*counter < g_hash_table_size(rtp_channels_hash)) {
rci->separator = gtk_hseparator_new();
gtk_box_pack_start(GTK_BOX (channels_vb), rci->separator, FALSE, FALSE, 5);
}
SIGNAL_CONNECT(rci->check_bt, "clicked", on_bt_check_clicked, rci);
g_string_free(label, TRUE);
}
/****************************************************************************/
static void
count_channel_frames(gchar *key _U_ , rtp_channel_info_t *rci, gpointer ptr _U_ )
{
total_frames += rci->samples->len;
}
/****************************************************************************/
static void
play_channels(void)
{
PaError err;
GtkWidget *dialog;
/* we should never be here if we are in PLAY and !PAUSE */
if(!rtp_channels->stop && !rtp_channels->pause){
exit(10);
}
/* if we are in PAUSE change the sate */
if (rtp_channels->pause) {
rtp_channels->pause = FALSE;
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(FALSE, FALSE, TRUE, TRUE);
/* if not PAUSE, then start to PLAY */
} else {
#if PORTAUDIO_API_1
err = Pa_OpenStream(
&pa_stream,
paNoDevice, /* default input device */
0, /* no input */
PA_SAMPLE_TYPE, /* 16 bit Integer input */
NULL,
Pa_GetDefaultOutputDeviceID(),
NUM_CHANNELS, /* Stereo output */
PA_SAMPLE_TYPE, /* 16 bit Integer output */
NULL,
SAMPLE_RATE,
FRAMES_PER_BUFFER,
0, /* number of buffers, if zero then use default minimum */
paClipOff, /* we won't output out of range samples so don't bother clipping them */
paCallback,
rtp_channels );
#else /* PORTAUDIO_API_1 */
err = Pa_OpenDefaultStream(
&pa_stream,
0,
NUM_CHANNELS,
PA_SAMPLE_TYPE,
SAMPLE_RATE,
FRAMES_PER_BUFFER,
paCallback,
rtp_channels );
#endif /* PORTAUDIO_API_1 */
if( err != paNoError ) {
dialog = gtk_message_dialog_new ((GtkWindow *) rtp_player_dlg_w,
GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,GTK_BUTTONS_CLOSE,
"Can not Open Stream in PortAudio Library.\n Error: %s", Pa_GetErrorText( err ));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
return;
}
err = Pa_StartStream( pa_stream );
if( err != paNoError ) {
dialog = gtk_message_dialog_new ((GtkWindow *) rtp_player_dlg_w,
GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,GTK_BUTTONS_CLOSE,
"Can not Start Stream in PortAudio Library.\n Error: %s", Pa_GetErrorText( err ));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
return;
}
#if !PORTAUDIO_API_1
rtp_channels->pa_start_time = Pa_GetStreamTime(pa_stream);
#endif /* PORTAUDIO_API_1 */
rtp_channels->stop = FALSE;
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(FALSE, FALSE, TRUE, TRUE);
}
/* Draw the cursor in the graph */
g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, MULT*1000/SAMPLE_RATE, draw_cursors, NULL, NULL);
}
/****************************************************************************/
static void
pause_channels(void)
{
rtp_channels->pause = !(rtp_channels->pause);
/* reactivate the cusrosr display if no in pause */
if (!rtp_channels->pause) {
/* Draw the cursor in the graph */
g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, MULT*1000/SAMPLE_RATE, draw_cursors, NULL, NULL);
}
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(FALSE, TRUE, FALSE, TRUE);
}
/****************************************************************************/
static void
reset_rtp_channels(void)
{
rtp_channels->channel = 0;
rtp_channels->rci[0] = NULL;
rtp_channels->rci[1] = NULL;
rtp_channels->start_index[0] = 0;
rtp_channels->start_index[1] = 0;
rtp_channels->end_index[0] = 0;
rtp_channels->end_index[1] = 0;
rtp_channels->max_frame_index = 0;
rtp_channels->frame_index = 0;
rtp_channels->pause = FALSE;
rtp_channels->pause_duration = 0;
rtp_channels->stop = TRUE;
rtp_channels->out_diff_time = 10000;
}
/****************************************************************************/
static void
remove_channel_to_window(gchar *key _U_ , rtp_channel_info_t *rci, gpointer ptr _U_ )
{
g_object_unref(rci->pixmap);
gtk_widget_destroy(rci->draw_area);
gtk_widget_destroy(rci->scroll_window);
gtk_widget_destroy(rci->check_bt);
if (rci->separator)
gtk_widget_destroy(rci->separator);
}
/****************************************************************************/
static void
reset_channels(void)
{
if (rtp_channels_hash) {
/* Remove the channels from the main window if there are there */
g_hash_table_foreach( rtp_channels_hash, (GHFunc)remove_channel_to_window, NULL);
/* destroy the rtp channels hash table */
g_hash_table_destroy(rtp_channels_hash);
rtp_channels_hash = NULL;
}
if (rtp_channels) {
reset_rtp_channels();
}
}
/****************************************************************************/
void
reset_rtp_player(void)
{
/* Destroy the rtp channels */
reset_channels();
/* destroy the rtp streams hash table */
if (rtp_streams_hash) {
g_hash_table_destroy(rtp_streams_hash);
rtp_streams_hash = NULL;
}
/* destroy the rtp streams list */
if (rtp_streams_list) {
g_list_free (rtp_streams_list);
rtp_streams_list = NULL;
}
}
/****************************************************************************/
static void
decode_streams(void)
{
guint statusbar_context;
guint counter;
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(FALSE, FALSE, FALSE, FALSE);
reset_channels();
progress_bar = gtk_progress_bar_new();
WIDGET_SET_SIZE(progress_bar, 100, -1);
gtk_box_pack_start(GTK_BOX (stat_hbox), progress_bar, FALSE, FALSE, 2);
gtk_widget_show(progress_bar);
statusbar_context = gtk_statusbar_get_context_id((GtkStatusbar *) info_bar, "main");
gtk_statusbar_push((GtkStatusbar *) info_bar, statusbar_context, " Decoding RTP packets...");
gtk_statusbar_set_has_resize_grip(GTK_STATUSBAR(info_bar), FALSE);
/* reset the number of packet to be decoded, this is used for the progress bar */
total_packets = 0;
/* reset the Progress Bar count */
progbar_count = 0;
/* Mark the RTP streams to be played using the selected VoipCalls*/
if (rtp_streams_hash)
g_hash_table_foreach( rtp_streams_hash, (GHFunc)mark_rtp_stream_to_play, NULL);
/* Decode the RTP streams and add them to the RTP channels to be played */
g_list_foreach( rtp_streams_list, (GFunc)decode_rtp_stream, NULL);
/* reset the number of frames to be displayed, this is used for the progress bar */
total_frames = 0;
/* Count the frames in all the RTP channels */
if (rtp_channels_hash)
g_hash_table_foreach( rtp_channels_hash, (GHFunc)count_channel_frames, NULL);
/* reset the Progress Bar count again for the progress of creating the channels view */
progbar_count = 0;
gtk_statusbar_pop((GtkStatusbar *) info_bar, statusbar_context);
gtk_statusbar_push((GtkStatusbar *) info_bar, statusbar_context, " Creating channels view...");
/* Display the RTP channels in the window */
counter = 0;
if (rtp_channels_hash)
g_hash_table_foreach( rtp_channels_hash, (GHFunc)add_channel_to_window, &counter);
/* Resize the main scroll window to display no more than 5 channels, otherwise the scroll bar need to be used */
WIDGET_SET_SIZE(main_scrolled_window, CHANNEL_WIDTH,
min(counter, 5) * (CHANNEL_HEIGHT+60));
gtk_widget_show_all(main_scrolled_window);
gtk_widget_destroy(progress_bar);
gtk_statusbar_set_has_resize_grip(GTK_STATUSBAR(info_bar), TRUE);
gtk_statusbar_pop((GtkStatusbar *) info_bar, statusbar_context);
/* blank the status label */
gtk_statusbar_pop((GtkStatusbar *) info_bar, statusbar_context);
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(TRUE, FALSE, FALSE, FALSE);
/* get the static jitter buffer from the spinner gui */
new_jitter_buff = (int) gtk_spin_button_get_value((GtkSpinButton * )jitter_spinner);
}
/****************************************************************************/
static void
on_bt_decode_clicked(GtkButton *button _U_, gpointer user_data _U_)
{
decode_streams();
}
/****************************************************************************/
static void
on_bt_play_clicked(GtkButton *button _U_, gpointer user_data _U_)
{
play_channels();
}
/****************************************************************************/
static void
on_bt_pause_clicked(GtkButton *button _U_, gpointer user_data _U_)
{
pause_channels();
}
/****************************************************************************/
static void
on_bt_stop_clicked(GtkButton *button _U_, gpointer user_data _U_)
{
stop_channels();
}
/****************************************************************************/
static void
rtp_player_on_destroy(GtkObject *object _U_, gpointer user_data _U_)
{
/* Stop the channels if necesary */
if(rtp_channels && (!rtp_channels->stop)){
stop_channels();
}
/* Destroy the rtp channels */
reset_channels();
g_free(rtp_channels);
rtp_channels = NULL;
initialized = FALSE;
gtk_widget_destroy(rtp_player_dlg_w);
main_scrolled_window = NULL;
rtp_player_dlg_w = NULL;
}
/****************************************************************************/
static void
jitter_spinner_value_changed (GtkSpinButton *spinner _U_, gpointer user_data _U_)
{
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(TRUE, TRUE, FALSE, FALSE);
}
/****************************************************************************/
static void
rtp_player_dlg_create(void)
{
GtkWidget *main_vb;
GtkWidget *hbuttonbox;
GtkWidget *h_jitter_buttons_box;
GtkWidget *bt_close;
GtkAdjustment *jitter_spinner_adj;
GtkWidget *label;
const gchar *title_name_ptr;
gchar *win_name;
GtkTooltips *tooltips = gtk_tooltips_new();
rtp_player_dlg_w=gtk_window_new(GTK_WINDOW_TOPLEVEL);
title_name_ptr = cf_get_display_name(&cfile);
win_name = g_strdup_printf("%s - VoIP - RTP Player", title_name_ptr);
gtk_window_set_title(GTK_WINDOW(rtp_player_dlg_w), win_name);
gtk_window_set_position(GTK_WINDOW(rtp_player_dlg_w), GTK_WIN_POS_NONE);
gtk_window_set_default_size(GTK_WINDOW(rtp_player_dlg_w), 400, 50);
main_vb = gtk_vbox_new (FALSE, 0);
gtk_container_add(GTK_CONTAINER(rtp_player_dlg_w), main_vb);
gtk_container_set_border_width (GTK_CONTAINER (main_vb), 2);
main_scrolled_window=gtk_scrolled_window_new(NULL, NULL);
gtk_container_set_border_width (GTK_CONTAINER (main_scrolled_window), 4);
WIDGET_SET_SIZE(main_scrolled_window, CHANNEL_WIDTH, 0);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (main_scrolled_window), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_container_add(GTK_CONTAINER(main_vb), main_scrolled_window);
channels_vb = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (channels_vb), 2);
gtk_scrolled_window_add_with_viewport((GtkScrolledWindow *) main_scrolled_window, channels_vb);
h_jitter_buttons_box = gtk_hbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (h_jitter_buttons_box), 10);
gtk_box_pack_start (GTK_BOX(main_vb), h_jitter_buttons_box, FALSE, FALSE, 0);
label = gtk_label_new("Jitter buffer [ms] ");
gtk_box_pack_start(GTK_BOX(h_jitter_buttons_box), label, FALSE, FALSE, 0);
jitter_spinner_adj = (GtkAdjustment *) gtk_adjustment_new (50, 0, 500, 5, 10, 10);
jitter_spinner = gtk_spin_button_new (jitter_spinner_adj, 5, 0);
gtk_box_pack_start(GTK_BOX(h_jitter_buttons_box), jitter_spinner, FALSE, FALSE, 0);
gtk_tooltips_set_tip (tooltips, jitter_spinner, "The simulated jitter buffer in [ms]", NULL);
SIGNAL_CONNECT(GTK_OBJECT (jitter_spinner_adj), "value_changed", (GtkSignalFunc) jitter_spinner_value_changed, NULL);
/* button row */
hbuttonbox = gtk_hbutton_box_new ();
gtk_box_pack_start (GTK_BOX (h_jitter_buttons_box), hbuttonbox, TRUE, TRUE, 0);
gtk_button_box_set_layout (GTK_BUTTON_BOX (hbuttonbox), GTK_BUTTONBOX_SPREAD);
gtk_button_box_set_spacing (GTK_BUTTON_BOX (hbuttonbox), 30);
bt_decode = gtk_button_new_with_label("Decode");
gtk_container_add(GTK_CONTAINER(hbuttonbox), bt_decode);
SIGNAL_CONNECT(bt_decode, "clicked", on_bt_decode_clicked, NULL);
gtk_tooltips_set_tip (tooltips, bt_decode, "Decode the RTP stream(s)", NULL);
bt_play = gtk_button_new_with_label("Play");
gtk_container_add(GTK_CONTAINER(hbuttonbox), bt_play);
SIGNAL_CONNECT(bt_play, "clicked", on_bt_play_clicked, NULL);
gtk_tooltips_set_tip (tooltips, bt_play, "Play the RTP channel(s)", NULL);
bt_pause = gtk_button_new_with_label("Pause");
gtk_container_add(GTK_CONTAINER(hbuttonbox), bt_pause);
SIGNAL_CONNECT(bt_pause, "clicked", on_bt_pause_clicked, NULL);
gtk_tooltips_set_tip (tooltips, bt_pause, "Pause the RTP channel(s)", NULL);
bt_stop = gtk_button_new_with_label("Stop");
gtk_container_add(GTK_CONTAINER(hbuttonbox), bt_stop);
SIGNAL_CONNECT(bt_stop, "clicked", on_bt_stop_clicked, NULL);
gtk_tooltips_set_tip (tooltips, bt_stop, "Stop the RTP channel(s)", NULL);
bt_close = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE);
gtk_container_add (GTK_CONTAINER (hbuttonbox), bt_close);
GTK_WIDGET_SET_FLAGS(bt_close, GTK_CAN_DEFAULT);
gtk_tooltips_set_tip (tooltips, bt_close, "Close this dialog", NULL);
SIGNAL_CONNECT(bt_close, "clicked", rtp_player_on_destroy, NULL);
SIGNAL_CONNECT(rtp_player_dlg_w, "destroy", rtp_player_on_destroy, NULL);
/* button row */
hbuttonbox = gtk_hbutton_box_new ();
/* Filter/status hbox */
stat_hbox = gtk_hbox_new(FALSE, 1);
gtk_container_border_width(GTK_CONTAINER(stat_hbox), 0);
/* statusbar */
info_bar = gtk_statusbar_new();
gtk_statusbar_set_has_resize_grip(GTK_STATUSBAR(info_bar), TRUE);
gtk_box_pack_start(GTK_BOX(stat_hbox), info_bar, TRUE, TRUE, 0);
/* statusbar hbox */
gtk_box_pack_start(GTK_BOX(main_vb), stat_hbox, FALSE, TRUE, 0);
/* set the sensitive state of the buttons (decode, play, pause, stop) */
bt_state(TRUE, FALSE, FALSE, FALSE);
gtk_widget_show_all(rtp_player_dlg_w);
/* Force gtk to redraw the window before starting decoding the packet */
while (g_main_context_iteration(NULL, FALSE));
g_free(win_name);
}
/****************************************************************************/
void
rtp_player_init(voip_calls_tapinfo_t *voip_calls_tap)
{
PaError err;
GtkWidget *dialog;
if (initialized) return;
initialized = TRUE;
voip_calls = voip_calls_tap;
err = Pa_Initialize();
if( err != paNoError ) {
dialog = gtk_message_dialog_new ((GtkWindow *) rtp_player_dlg_w,
GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,GTK_BUTTONS_CLOSE,
"Can not Initialize the PortAudio Library.\n Error: %s", Pa_GetErrorText( err ));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
initialized = FALSE;
return;
}
new_jitter_buff = -1;
#ifdef HAVE_G729_G723
/* Initialize the G729 and G723 decoders */
initG723();
initG729();
#endif /* HAVE_G729_G723 */
if (!rtp_channels) {
rtp_channels = g_malloc(sizeof(rtp_play_channles_t));
}
reset_rtp_channels();
/* create the dialog window */
rtp_player_dlg_create();
}
#endif /* GTK_MAJOR_VERSION >= 2 */
#endif /* HAVE_LIBPORTAUDIO */
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