Major code changes... FFMPEG introduced. Project splitup into subfolders.

1 files changed, 286 insertions, 0 deletions

diff --git a/miav/decoder.cc b/miav/decoder.cc
new file mode 100644
index 0000000..0d56aca
--- /dev/null
+++ b/miav/decoder.cc
@@ -0,0 +1,286 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            decoder.cc
+ *
+ *  Sat Feb 19 17:05:43 CET 2005
+ *  Copyright  2005 Bent Bisballe
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * Originally from:
+ * RTVideoRec Realtime video recoder and encoder for Linux
+ *
+ * Copyright (C) 2004  B. Stultiens
+ * Copyright (C) 2004  Koen Otter and Glenn van der Meyden
+ */
+
+/*
+ *    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>
+#ifdef USE_GUI
+
+#include "frame_stream.h"
+
+#include "miav_config.h"
+
+#include <time.h>
+
+// Use libdv
+#include <libdv/dv.h>
+#include <libdv/dv_types.h>
+
+#include <SDL/SDL.h>
+
+#include "dv.h"
+#include "dvfile.h"
+#include "dv1394.h"
+
+#include "decoder.h"
+#include "debug.h"
+
+Decoder::Decoder(Info *ginfo,
+                 sem_t *gencode_sem,
+                 sem_t *gplayer_sem,
+                 Queue<Frame> *gencode_queue,
+                 Queue<Frame> *gplayer_queue,
+                 pthread_mutex_t *gmutex,
+                 volatile int *grunning)
+{
+  info = ginfo;
+
+  encode_sem = gencode_sem;
+  player_sem = gplayer_sem;
+  encode_queue = gencode_queue;
+  player_queue = gplayer_queue;
+  mutex = gmutex;
+  running = grunning;
+
+  b_shoot = false;
+  b_freeze = false;
+  b_record = false; // Initially no recording is done.
+
+  pthread_mutex_init (&shot_mutex, NULL);
+  shot = NULL;
+
+  mute = false;
+}
+
+Decoder::~Decoder()
+{
+  pthread_mutex_destroy(&shot_mutex);
+}
+
+void Decoder::decode()
+{
+  frame_stream *dvstream;
+
+  bool local_shoot;
+  int local_freeze;
+  bool local_record = false;
+  bool old_record;
+
+  bool skip_frames = config->readInt("player_skip_frames");
+
+  dv1394 dv1394_stream = dv1394(info); // Use default port and channel.
+  dvfile dvfile_stream = dvfile(info);
+  if(dv1394_stream.connect()) { 
+    // Use the dv1394 stream for input.
+    dvstream = &dv1394_stream;
+  } else {
+    // Use the fallback dv filereader for input.
+    dvstream = &dvfile_stream;
+  }
+
+  while(*running) {
+    uint8_t *ptr;
+    SDL_Event user_event;
+    
+    // Read a dvframe
+    ptr = dvstream->readFrame();
+    if(!ptr) return; // No frame read. (Due to dv read error)
+
+    old_record = local_record;
+    local_shoot = b_shoot;
+    b_shoot = false;
+    local_freeze = b_freeze;
+    b_freeze = false;
+    local_record = b_record;
+
+    if(local_shoot) {
+      pthread_mutex_lock(&shot_mutex);
+      if(!shot) shot = new Frame(ptr, DVPACKAGE_SIZE);
+      pthread_mutex_unlock(&shot_mutex);
+    }
+    
+    if(local_freeze == 1) {
+      pthread_mutex_lock(&shot_mutex);
+      if(shot) delete shot;
+      shot = new Frame(ptr, DVPACKAGE_SIZE);
+      pthread_mutex_unlock(&shot_mutex);
+    }
+
+    static int showframe = 1;
+    if(skip_frames != 0) showframe = 1 - showframe;
+    if(showframe) {
+      Frame *pframe = new Frame(ptr, DVPACKAGE_SIZE);
+
+      pframe->shoot = local_shoot;
+      pframe->freeze = local_freeze;
+      pframe->record = local_record;
+
+      player_queue->push(pframe);
+    
+      // Create and send SDL event.
+      user_event.type = SDL_USEREVENT;
+      user_event.user.code = 0;
+      user_event.user.data1 = NULL;
+      user_event.user.data2 = NULL;
+      SDL_PushEvent(&user_event);
+    }
+
+    if(local_record | (local_record != old_record) | local_shoot | local_freeze) {
+      Frame *eframe = new Frame(NULL, 0);
+      eframe->data = ptr;
+      eframe->size = DVPACKAGE_SIZE;
+
+      eframe->shoot = local_shoot;
+      eframe->freeze = local_freeze;
+      eframe->record = local_record;
+      eframe->mute = mute;
+    
+      encode_queue->push(eframe);
+      
+      sem_post(encode_sem);
+    } else {
+      free(ptr);
+    }
+  }
+
+  // Kick the others so they wake up with empty queues
+  sem_post(encode_sem);
+}
+
+void Decoder::thread_main() {
+  decode();
+  fprintf(stderr, "Decoder thread stopped.\n"); fflush(stderr);
+}
+
+/*
+ * Set freeze bit on current frame.
+ */
+void Decoder::freeze()
+{  
+  b_freeze = 1;
+}
+
+/*
+ * Remove frozen frame.
+ */
+void Decoder::unfreeze()
+{  
+  b_freeze = -1;
+
+  pthread_mutex_lock(&shot_mutex);
+  delete shot;
+  shot = NULL;
+  pthread_mutex_unlock(&shot_mutex);
+}
+
+/*
+ * Set shoot bit on current frame.
+ */
+void Decoder::shoot(unsigned char *rgb)
+{
+  struct timespec ts;
+
+  b_shoot = true;
+
+  // Wait for shot to be taken
+  while(1) {
+    pthread_mutex_lock(&shot_mutex);
+    if(shot) {
+      getScreenshot(shot, rgb);
+      delete shot;
+      shot = NULL;
+      pthread_mutex_unlock(&shot_mutex);
+      return;
+    }
+    pthread_mutex_unlock(&shot_mutex);
+
+    ts.tv_sec = 0;
+    ts.tv_nsec = 100000000L;	// 100ms
+    nanosleep(&ts, NULL);
+  }
+}
+
+/*
+ * Set the record bit to true in all following frames.
+ */
+void Decoder::start()
+{
+  b_record = true;
+}
+
+/*
+ * Set the record bit to false in all following frames.
+ */
+void Decoder::stop(n_savestate save)
+{
+  b_record = false;
+}
+
+void Decoder::getScreenshot(Frame *frame, unsigned char *rgb)
+{
+  unsigned char *pixels[3];
+  int pitches[3];
+
+  pixels[ 0 ] = rgb;
+  pixels[ 1 ] = NULL;
+  pixels[ 2 ] = NULL;
+
+  pitches[ 0 ] = 720 * 4;
+  pitches[ 1 ] = 0;
+  pitches[ 2 ] = 0;
+  
+	dv_decoder_t *decoder = dv_decoder_new(FALSE/*this value is unused*/, FALSE, FALSE);
+  decoder->quality = DV_QUALITY_BEST;
+
+  dv_parse_header(decoder, frame->data);
+  
+  decoder->system = e_dv_system_625_50;  // PAL lines, PAL framerate
+  decoder->sampling = e_dv_sample_422;  // 4 bytes y, 2 bytes u, 2 bytes v
+  decoder->std = e_dv_std_iec_61834;
+  decoder->num_dif_seqs = 12;
+  
+  // libdv img decode to rgb
+  dv_decode_full_frame(decoder,
+                       frame->data,
+                       e_dv_color_bgr0,
+                       pixels,
+                       pitches);
+  
+  dv_decoder_free(decoder);
+}
+
+void Decoder::setMute(bool m)
+{
+  mute = m;
+}
+
+#endif /*USE_GUI*/