1 files changed, 386 insertions, 0 deletions

diff --git a/src/spu_dec/spu_decoder.c b/src/spu_dec/spu_decoder.c
new file mode 100644
index 000000000..9244564ff
--- /dev/null
+++ b/src/spu_dec/spu_decoder.c
@@ -0,0 +1,386 @@
+/*
+ * Copyright (C) 2000-2008 the xine project
+ *
+ * Copyright (C) James Courtier-Dutton James@superbug.demon.co.uk - July 2001
+ *
+ * This file is part of xine, a unix video player.
+ *
+ * xine 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.
+ *
+ * xine 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * stuff needed to turn libspu into a xine decoder plugin
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <xine/xine_internal.h>
+#include <xine/buffer.h>
+#include "xine-engine/bswap.h"
+#include <xine/xineutils.h>
+#ifdef HAVE_DVDNAV
+#  ifdef HAVE_DVDNAV_NAVTYPES_H
+#    include <dvdnav/nav_types.h>
+#    include <dvdnav/nav_read.h>
+#  else
+#    include <dvdread/nav_types.h>
+#    include <dvdread/nav_read.h>
+#  endif
+#else
+#  include "nav_read.h"
+#  include "nav_types.h"
+#endif
+
+#include "spudec.h"
+
+/*
+#define LOG_DEBUG 1
+#define LOG_BUTTON 1
+*/
+
+static const clut_t default_clut[] = {
+  CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0xbf, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x10, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x28, 0x6d, 0xef),
+  CLUT_Y_CR_CB_INIT(0x51, 0xef, 0x5a),
+  CLUT_Y_CR_CB_INIT(0xbf, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x36, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x28, 0x6d, 0xef),
+  CLUT_Y_CR_CB_INIT(0xbf, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x51, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0xbf, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x10, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x28, 0x6d, 0xef),
+  CLUT_Y_CR_CB_INIT(0x5c, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0xbf, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x1c, 0x80, 0x80),
+  CLUT_Y_CR_CB_INIT(0x28, 0x6d, 0xef)
+};
+
+static void spudec_decode_data (spu_decoder_t *this_gen, buf_element_t *buf) {
+  spudec_decoder_t *this = (spudec_decoder_t *) this_gen;
+  const uint8_t stream_id = buf->type & 0x1f ;
+
+#ifdef LOG_DEBUG
+  printf("libspudec:got buffer type = %x\n", buf->type);
+#endif
+
+  /* check, if we need to process the next PCI from the list */
+  pthread_mutex_lock(&this->nav_pci_lock);
+  spudec_update_nav(this);
+  pthread_mutex_unlock(&this->nav_pci_lock);
+
+  if ( (buf->type & 0xffff0000) != BUF_SPU_DVD ||
+       !(buf->decoder_flags & BUF_FLAG_SPECIAL) ||
+       buf->decoder_info[1] != BUF_SPECIAL_SPU_DVD_SUBTYPE )
+    return;
+
+  if ( buf->decoder_info[2] == SPU_DVD_SUBTYPE_CLUT ) {
+#ifdef LOG_DEBUG
+    printf("libspudec: SPU CLUT\n");
+#endif
+    if (buf->content[0]) { /* cheap endianess detection */
+      xine_fast_memcpy(this->state.clut, buf->content, sizeof(uint32_t)*16);
+    } else {
+      int i;
+      uint32_t *clut = (uint32_t*) buf->content;
+      for (i = 0; i < 16; i++)
+        this->state.clut[i] = bswap_32(clut[i]);
+    }
+    this->state.need_clut = 0;
+    return;
+  }
+
+  if ( buf->decoder_info[2] == SPU_DVD_SUBTYPE_NAV ) {
+#ifdef LOG_DEBUG
+    printf("libspudec:got nav packet 1\n");
+#endif
+    spudec_decode_nav(this,buf);
+    return;
+  }
+
+  if ( buf->decoder_info[2] == SPU_DVD_SUBTYPE_VOBSUB_PACKAGE ) {
+    this->state.vobsub = 1;
+  }
+
+#ifdef LOG_DEBUG
+  printf("libspudec:got buffer type = %x\n", buf->type);
+#endif
+  if (buf->decoder_flags & BUF_FLAG_PREVIEW)  /* skip preview data */
+    return;
+
+  if (buf->pts) {
+    metronom_t *metronom = this->stream->metronom;
+    int64_t vpts = metronom->got_spu_packet(metronom, buf->pts);
+
+    this->spudec_stream_state[stream_id].vpts = vpts; /* Show timer */
+    this->spudec_stream_state[stream_id].pts = buf->pts; /* Required to match up with NAV packets */
+  }
+
+  spudec_reassembly(this->stream->xine,
+		    &this->spudec_stream_state[stream_id].ra_seq, buf->content, buf->size);
+  if(this->spudec_stream_state[stream_id].ra_seq.complete == 1) {
+    if(this->spudec_stream_state[stream_id].ra_seq.broken) {
+      xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "libspudec: dropping broken SPU\n");
+      this->spudec_stream_state[stream_id].ra_seq.broken = 0;
+    } else
+      spudec_process(this,stream_id);
+  }
+}
+
+static void spudec_reset (spu_decoder_t *this_gen) {
+  spudec_decoder_t *this = (spudec_decoder_t *) this_gen;
+  video_overlay_manager_t *ovl_manager = this->stream->video_out->get_overlay_manager (this->stream->video_out);
+  int i;
+
+  if( this->menu_handle >= 0 )
+    ovl_manager->free_handle(ovl_manager,
+			     this->menu_handle);
+  this->menu_handle = -1;
+
+  for (i=0; i < MAX_STREAMS; i++) {
+    if( this->spudec_stream_state[i].overlay_handle >= 0 )
+      ovl_manager->free_handle(ovl_manager,
+			       this->spudec_stream_state[i].overlay_handle);
+    this->spudec_stream_state[i].overlay_handle = -1;
+    this->spudec_stream_state[i].ra_seq.complete = 1;
+    this->spudec_stream_state[i].ra_seq.broken = 0;
+  }
+
+  pthread_mutex_lock(&this->nav_pci_lock);
+  spudec_clear_nav_list(this);
+  pthread_mutex_unlock(&this->nav_pci_lock);
+}
+
+static void spudec_discontinuity (spu_decoder_t *this_gen) {
+  spudec_decoder_t *this = (spudec_decoder_t *) this_gen;
+
+  pthread_mutex_lock(&this->nav_pci_lock);
+  spudec_clear_nav_list(this);
+  pthread_mutex_unlock(&this->nav_pci_lock);
+}
+
+
+static void spudec_dispose (spu_decoder_t *this_gen) {
+
+  spudec_decoder_t         *this = (spudec_decoder_t *) this_gen;
+  video_overlay_manager_t  *ovl_manager = this->stream->video_out->get_overlay_manager (this->stream->video_out);
+
+  if( this->menu_handle >= 0 )
+    ovl_manager->free_handle(ovl_manager,
+			     this->menu_handle);
+  this->menu_handle = -1;
+
+  int i;
+  for (i=0; i < MAX_STREAMS; i++) {
+    if( this->spudec_stream_state[i].overlay_handle >= 0 )
+      ovl_manager->free_handle(ovl_manager,
+			       this->spudec_stream_state[i].overlay_handle);
+    this->spudec_stream_state[i].overlay_handle = -1;
+    free (this->spudec_stream_state[i].ra_seq.buf);
+  }
+
+  spudec_clear_nav_list(this);
+  pthread_mutex_destroy(&this->nav_pci_lock);
+
+  free (this->event.object.overlay);
+  free (this);
+}
+
+/* gets the current already correctly processed nav_pci info */
+/* This is not perfectly in sync with the display, but all the same, */
+/* much closer than doing it at the input stage. */
+/* returns a bool for error/success.*/
+static int spudec_get_interact_info (spu_decoder_t *this_gen, void *data) {
+  spudec_decoder_t *this  = (spudec_decoder_t *) this_gen;
+  /*printf("get_interact_info() called\n");*/
+  if (!this || !data)
+    return 0;
+
+  /*printf("get_interact_info() coping nav_pci\n");*/
+  pthread_mutex_lock(&this->nav_pci_lock);
+  spudec_update_nav(this);
+  memcpy(data, &this->pci_cur.pci, sizeof(pci_t) );
+  pthread_mutex_unlock(&this->nav_pci_lock);
+  return 1;
+
+}
+
+static void spudec_set_button (spu_decoder_t *this_gen, int32_t button, int32_t show) {
+  spudec_decoder_t *this  = (spudec_decoder_t *) this_gen;
+  /* This function will move to video_overlay
+  * when video_overlay does menus */
+
+  video_overlay_manager_t *ovl_manager;
+  video_overlay_event_t *overlay_event = calloc(1, sizeof(video_overlay_event_t));
+  vo_overlay_t        *overlay = calloc(1, sizeof(vo_overlay_t));
+
+  /* FIXME: Watch out for threads. We should really put a lock on this
+   * because events is a different thread than decode_data */
+
+  if( this->menu_handle < 0 ) {
+    if (this->stream->video_out) {
+      ovl_manager = this->stream->video_out->get_overlay_manager (this->stream->video_out);
+      this->menu_handle = ovl_manager->get_handle(ovl_manager,1);
+    }
+  }
+#ifdef LOG_BUTTON
+  printf ("libspudec:xine_decoder.c:spudec_event_listener:this=%p\n",this);
+  printf ("libspudec:xine_decoder.c:spudec_event_listener:this->menu_handle=%d\n",this->menu_handle);
+#endif
+  if(this->menu_handle < 0) {
+    xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
+	    "Menu handle alloc failed. No more overlays objects available. Only %d at once please.",
+	    MAX_OBJECTS);
+    free(overlay_event);
+    free(overlay);
+    return;
+  }
+
+  if (show > 0) {
+#ifdef LOG_NAV
+    fprintf (stderr,"libspudec:xine_decoder.c:spudec_event_listener:buttonN = %u show=%d\n",
+             button,
+             show);
+#endif
+    this->buttonN = button;
+    if (this->button_filter != 1) {
+#ifdef LOG_BUTTON
+      fprintf (stdout,"libspudec:xine_decoder.c:spudec_event_listener:buttonN updates not allowed\n");
+#endif
+      /* Only update highlight is the menu will let us */
+      free(overlay_event);
+      free(overlay);
+      return;
+    }
+    if (show == 2) {
+      this->button_filter = 2;
+    }
+    pthread_mutex_lock(&this->nav_pci_lock);
+    spudec_update_nav(this);
+    overlay_event->object.handle = this->menu_handle;
+    overlay_event->object.pts = this->pci_cur.pci.hli.hl_gi.hli_s_ptm;
+    overlay_event->object.overlay=overlay;
+    overlay_event->event_type = OVERLAY_EVENT_MENU_BUTTON;
+#ifdef LOG_BUTTON
+    fprintf(stderr, "libspudec:Button Overlay\n");
+#endif
+    spudec_copy_nav_to_overlay(this->stream->xine, &this->pci_cur.pci, this->state.clut,
+			       this->buttonN, show-1, overlay, &this->overlay );
+    pthread_mutex_unlock(&this->nav_pci_lock);
+  } else {
+    xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
+	    "libspudec:xine_decoder.c:spudec_event_listener:HIDE ????\n");
+    printf("We dropped out here for some reason");
+    _x_abort();
+    overlay_event->object.handle = this->menu_handle;
+    overlay_event->event_type = OVERLAY_EVENT_HIDE;
+  }
+  overlay_event->vpts = 0;
+  if (this->stream->video_out) {
+    ovl_manager = this->stream->video_out->get_overlay_manager (this->stream->video_out);
+#ifdef LOG_BUTTON
+    fprintf(stderr, "libspudec: add_event type=%d : current time=%lld, spu vpts=%lli\n",
+            overlay_event->event_type,
+            this->stream->xine->clock->get_current_time(this->stream->xine->clock),
+            overlay_event->vpts);
+#endif
+    ovl_manager->add_event (ovl_manager, (void *)overlay_event);
+    free(overlay_event);
+    free(overlay);
+  } else {
+    free(overlay_event);
+    free(overlay);
+  }
+  return;
+}
+
+static spu_decoder_t *open_plugin (spu_decoder_class_t *class_gen, xine_stream_t *stream) {
+
+  spudec_decoder_t *this ;
+
+  this = (spudec_decoder_t *) calloc(1, sizeof (spudec_decoder_t));
+
+  this->spu_decoder.decode_data         = spudec_decode_data;
+  this->spu_decoder.reset               = spudec_reset;
+  this->spu_decoder.discontinuity       = spudec_discontinuity;
+  this->spu_decoder.dispose             = spudec_dispose;
+  this->spu_decoder.get_interact_info   = spudec_get_interact_info;
+  this->spu_decoder.set_button          = spudec_set_button;
+  this->stream                          = stream;
+  this->class                           = (spudec_class_t *) class_gen;
+
+  this->menu_handle = -1;
+  this->buttonN = 1;
+  this->event.object.overlay = calloc(1, sizeof(vo_overlay_t));
+
+  pthread_mutex_init(&this->nav_pci_lock, NULL);
+  this->pci_cur.pci.hli.hl_gi.hli_ss  = 0;
+  this->pci_cur.next                  = NULL;
+
+  this->ovl_caps    = stream->video_out->get_capabilities(stream->video_out);
+  this->output_open = 0;
+  this->last_event_vpts = 0;
+
+  int i;
+  for (i=0; i < MAX_STREAMS; i++) {
+    this->spudec_stream_state[i].ra_seq.complete = 1;
+    this->spudec_stream_state[i].overlay_handle = -1;
+  }
+
+/* FIXME:Do we really need a default clut? */
+  xine_fast_memcpy(this->state.clut, default_clut, sizeof(this->state.clut));
+  this->state.need_clut = 1;
+  this->state.vobsub = 0;
+
+  return &this->spu_decoder;
+}
+
+static void *init_plugin (xine_t *xine, void *data) {
+
+  spudec_class_t *this;
+
+  this = calloc(1, sizeof (spudec_class_t));
+
+  this->decoder_class.open_plugin     = open_plugin;
+  this->decoder_class.identifier      = "spudec";
+  this->decoder_class.description     = N_("DVD/VOB SPU decoder plugin");
+  this->decoder_class.dispose         = default_spu_decoder_class_dispose;
+
+  lprintf ("libspudec:init_plugin called\n");
+  return this;
+}
+
+/* plugin catalog information */
+static const uint32_t supported_types[] = { BUF_SPU_DVD, 0 };
+
+static const decoder_info_t dec_info_data = {
+  supported_types,     /* supported types */
+  5                    /* priority        */
+};
+
+const plugin_info_t xine_plugin_info[] EXPORTED = {
+  /* type, API, "name", version, special_info, init_function */
+  { PLUGIN_SPU_DECODER, 17, "spudec", XINE_VERSION_CODE, &dec_info_data, &init_plugin },
+  { PLUGIN_NONE, 0, "", 0, NULL, NULL }
+};