summaryrefslogtreecommitdiff
path: root/src/mov_encoder_thread.cc
blob: 59e3c8451df6e9482a1fa2c1633d98d76156f48b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            mov_encoder_thread.cc
 *
 *  Tue May 17 16:00:01 CEST 2005
 *  Copyright  2005 Bent Bisballe
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *    This file is part of MIaV.
 *
 *    MIaV 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.
 *
 *    MIaV 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 MIaV; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include <config.h>
#include "mov_encoder_thread.h"
#include <errno.h>
#include "miav_config.h"

MovEncoderThread::MovEncoderThread(const char *cpr, Info *i)
{
  info = i;
  info->info("MovEncoderThread");

  // Queues
  inputqueue = new FrameVectorQueue();
  video_outputqueue = new FramePriorityQueue();
  audio_inputqueue = new FramePriorityQueue();
  audio_outputqueue = new FramePriorityQueue();

  // Queue mutexes
  pthread_mutex_init (&input_mutex, NULL);
  pthread_mutex_init (&video_output_mutex, NULL);
  pthread_mutex_init (&audio_input_mutex, NULL);
  pthread_mutex_init (&audio_output_mutex, NULL);

  block = new FrameVector();

  num_frames_in_block = config->readString("frame_sequence")->length();

  info->info("Frame sequence length %d", num_frames_in_block);

  threads = config->readInt("encoding_threads");

  // Thread stuff
	sem_init(&in_sem, 0, 0);
	sem_init(&video_out_sem, 0, 0);
	sem_init(&audio_in_sem, 0, 0);
	sem_init(&audio_out_sem, 0, 0);
	sem_init(&read_sem, 0, 0);
  
  movencodersrunning = true;

  for(int cnt = 0; cnt < threads; cnt++) sem_post(&read_sem);

  // Create the video encoders
  for(int cnt = 0; cnt < threads; cnt++) {
    MovEncoder *movenc = 
      new MovEncoder(&movencodersrunning, &read_sem,
                     inputqueue, &in_sem, &input_mutex,
                     video_outputqueue, &video_output_mutex, &video_out_sem,
                     audio_inputqueue, &audio_input_mutex, &audio_in_sem,
                     info);
    movenc->run();
    encs.push_back(movenc);
  }

  // Create the audio encoder
  audioenc = new AudioEncoder(audio_inputqueue, &audio_input_mutex, &audio_in_sem,
                              audio_outputqueue, &audio_output_mutex, &audio_out_sem,
                              info);
  audioenc->run();

  // Create the multiplexer
  writer = new MovEncoderWriter(cpr,
                                video_outputqueue, &video_output_mutex, &video_out_sem,
                                audio_outputqueue, &audio_output_mutex, &audio_out_sem,
                                info);
  writer->run();

  frame_number = 0;
}

#include <unistd.h>
MovEncoderThread::~MovEncoderThread()
{
  info->info("~MovEncoderThread");

  // First we destroy the movie encoders
  for(int cnt = 0; cnt < threads; cnt++) sem_post(&in_sem); // Kick them
  for(int cnt = 0; cnt < threads; cnt++) {
    encs[cnt]->wait_stop();    // Wait for it to stop
    delete encs[cnt];    // Delete it
  }

  info->info("Deleted the movie encoders");

  // Then we destroy the audio encoder
  sem_post(&audio_in_sem); // Kick it
  audioenc->wait_stop();  // Wait for it to stop.
  delete audioenc;  // delete the audio encoder
  
  info->info("Deleted the audio encoder");

  // Finally we destroy the writer.
  writer->running = false;
  sem_post(&video_out_sem);  // Kick it to make it stop.
  sem_post(&audio_out_sem);  // Kick it to make it stop.
  writer->wait_stop(); // Wait for it to stop.
  delete writer;  // delete the writer (end thereby close the file)

  info->info("Deleted the writer");

  /*
  // These should not be deleted here... its done elsewhere.
  //  inputqueue = NULL;

  //  sem_post(&video_out_sem);
  //  sem_post(&audio_out_sem);

  // Tell the encoding threads to stop.
  for(int cnt = 0; cnt < threads; cnt++) {
    encs[cnt]->running = false;
  }

  // Kick them to initiate the exit.
  for(int cnt = 0; cnt < threads; cnt++) {
    sem_post(&in_sem);
  }

  // They should be exited now, so we can delete them.
  for(int cnt = 0; cnt < threads; cnt++) {
    // Wait for it to stop
    encs[cnt]->wait_stop();
    // Delete it
    delete encs[cnt];
  }

  // Tell the audio encoder to stop
  audioenc->running = false;

  // Kick it to make it stop.
  sem_post(&audio_in_sem);

  // Wait for it to stop.
  audioenc->wait_stop();

  // delete the audio encoder
  delete audioenc;

  // Tell the writer to stop
  writer->running = false;

  // Kick it to make it stop.
  sem_post(&video_out_sem);
  sem_post(&audio_out_sem);

  // Wait for it to stop.
  writer->wait_stop();

  // delete the writer (end thereby close the file)
  delete writer;
  */
  // Destroy the semaphores.
  sem_destroy(&in_sem);
  sem_destroy(&video_out_sem);
  sem_destroy(&audio_in_sem);
  sem_destroy(&audio_out_sem);
  sem_destroy(&read_sem);


  info->info("MovEncoderThread done deinitializing.");
}

void MovEncoderThread::encode(Frame* frame)
{
  if(frame == NULL) {
    info->info("MovEncoderThread::encode - NULL frame detected.");
    // Terminate
    return;
  }

  frame->number = frame_number;
  block->push_back(frame);

  // Switch frame
  if(block->size() == num_frames_in_block || frame->endOfFrameStream == true) {
    // Wait until a free encoder.
    sem_wait(&read_sem);

    // Lock input mutex
    pthread_mutex_lock(&input_mutex);
    inputqueue->push(block);
    pthread_mutex_unlock(&input_mutex);
    // Unlock input mutex

    // Kick encoders
    sem_post(&in_sem);

    // Start new block
    block = new FrameVector;
  }

  frame_number ++;
}