Diff: decoder.cpp

Revision:

4:30b2cf4a8ee2

Parent:

3:6f07b5f52c38

Child:

5:50015f4868e2

--- a/decoder.cpp	Wed Dec 19 06:01:00 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,303 +0,0 @@
-/*
- * libmad - MPEG audio decoder library
- * Copyright (C) 2000-2004 Underbit Technologies, Inc.
- *
- * 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
- *
- * $Id: decoder.c,v 1.1 2010/11/23 20:12:57 andy Exp $
- */
-
-#  include "config.h"
-
-# include "global.h"
-
-
-# ifdef HAVE_SYS_TYPES_H
-#  include <sys/types.h>
-# endif
-
-# ifdef HAVE_SYS_WAIT_H
-#  include <sys/wait.h>
-# endif
-
-# ifdef HAVE_UNISTD_H
-#  include <unistd.h>
-# endif
-
-# ifdef HAVE_FCNTL_H
-#  include <fcntl.h>
-# endif
-
-# include <stdlib.h>
-
-# ifdef HAVE_ERRNO_H
-#  include <errno.h>
-# endif
-
-# include "stream.h"
-# include "frame.h"
-# include "synth.h"
-# include "decoder.h"
-
-/*
- * NAME:        decoder->init()
- * DESCRIPTION: initialize a decoder object with callback routines
- */
-void mad_decoder_init(struct mad_decoder *decoder, void *data,
-                      enum mad_flow (*input_func)(void *,
-                                                  struct mad_stream *),
-                      enum mad_flow (*header_func)(void *,
-                                                   struct mad_header const *),
-                      enum mad_flow (*filter_func)(void *,
-                                                   struct mad_stream const *,
-                                                   struct mad_frame *),
-                      enum mad_flow (*output_func)(void *,
-                                                   struct mad_header const *,
-                                                   struct mad_pcm *),
-                      enum mad_flow (*error_func)(void *,
-                                                  struct mad_stream *,
-                                                  struct mad_frame *),
-                      enum mad_flow (*message_func)(void *,
-                                                    void *, unsigned int *))
-{
-  decoder->mode         = (enum mad_decoder_mode)-1;
-
-  decoder->options      = 0;
-
-
-  decoder->sync         = 0;
-
-  decoder->cb_data      = data;
-
-  decoder->input_func   = input_func;
-  decoder->header_func  = header_func;
-  decoder->filter_func  = filter_func;
-  decoder->output_func  = output_func;
-  decoder->error_func   = error_func;
-  decoder->message_func = message_func;
-}
-
-int mad_decoder_finish(struct mad_decoder *decoder)
-{
-  return 0;
-}
-
-
-static
-enum mad_flow error_default(void *data, struct mad_stream *stream,
-                            struct mad_frame *frame)
-{
-  int *bad_last_frame = (int *)data;
-
-  switch (stream->error) {
-  case MAD_ERROR_BADCRC:
-    if (*bad_last_frame)
-      mad_frame_mute(frame);
-    else
-      *bad_last_frame = 1;
-
-    return MAD_FLOW_IGNORE;
-
-  default:
-    return MAD_FLOW_CONTINUE;
-  }
-}
-
-static
-int run_sync(struct mad_decoder *decoder)
-{
-  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
-  void *error_data;
-  int bad_last_frame = 0;
-  struct mad_stream *stream;
-  struct mad_frame *frame;
-  struct mad_synth *synth;
-  int result = 0;
-
-  if (decoder->input_func == 0)
-    return 0;
-
-  if (decoder->error_func) {
-    error_func = decoder->error_func;
-    error_data = decoder->cb_data;
-  }
-  else {
-    error_func = error_default;
-    error_data = &bad_last_frame;
-  }
-
-  stream = &decoder->sync->stream;
-  frame  = &decoder->sync->frame;
-  synth  = decoder->sync->synth;
-
-  mad_stream_init(stream);
-  mad_frame_init(frame);
-  mad_synth_init(synth);
-
-  mad_stream_options(stream, decoder->options);
-
-  do {
-    switch (decoder->input_func(decoder->cb_data, stream)) {
-    case MAD_FLOW_STOP:
-      goto done;
-    case MAD_FLOW_BREAK:
-      goto fail;
-    case MAD_FLOW_IGNORE:
-      continue;
-    case MAD_FLOW_CONTINUE:
-      break;
-    }
-
-    while (1) {
-      if (decoder->header_func) {
-        if (mad_header_decode(&frame->header, stream) == -1) {
-          if (!MAD_RECOVERABLE(stream->error))
-            break;
-
-          switch (error_func(error_data, stream, frame)) {
-          case MAD_FLOW_STOP:
-            goto done;
-          case MAD_FLOW_BREAK:
-            goto fail;
-          case MAD_FLOW_IGNORE:
-          case MAD_FLOW_CONTINUE:
-          default:
-            continue;
-          }
-        }
-
-        switch (decoder->header_func(decoder->cb_data, &frame->header)) {
-        case MAD_FLOW_STOP:
-          goto done;
-        case MAD_FLOW_BREAK:
-          goto fail;
-        case MAD_FLOW_IGNORE:
-          continue;
-        case MAD_FLOW_CONTINUE:
-          break;
-        }
-      }
-
-      if (mad_frame_decode(frame, stream) == -1) {
-        if (!MAD_RECOVERABLE(stream->error))
-          break;
-
-        switch (error_func(error_data, stream, frame)) {
-        case MAD_FLOW_STOP:
-          goto done;
-        case MAD_FLOW_BREAK:
-          goto fail;
-        case MAD_FLOW_IGNORE:
-          break;
-        case MAD_FLOW_CONTINUE:
-        default:
-          continue;
-        }
-      }
-      else
-        bad_last_frame = 0;
-
-      if (decoder->filter_func) {
-        switch (decoder->filter_func(decoder->cb_data, stream, frame)) {
-        case MAD_FLOW_STOP:
-          goto done;
-        case MAD_FLOW_BREAK:
-          goto fail;
-        case MAD_FLOW_IGNORE:
-          continue;
-        case MAD_FLOW_CONTINUE:
-          break;
-        }
-      }
-
-      mad_synth_frame(synth, frame);
-
-      if (decoder->output_func) {
-        switch (decoder->output_func(decoder->cb_data,
-                                     &frame->header, &synth->pcm)) {
-        case MAD_FLOW_STOP:
-          goto done;
-        case MAD_FLOW_BREAK:
-          goto fail;
-        case MAD_FLOW_IGNORE:
-        case MAD_FLOW_CONTINUE:
-          break;
-        }
-      }
-    }
-  }
-  while (stream->error == MAD_ERROR_BUFLEN);
-
- fail:
-  result = -1;
-
- done:
-  mad_synth_finish(synth);
-  mad_frame_finish(frame);
-  mad_stream_finish(stream);
-
-  return result;
-}
-
-
-/*
- * NAME:        decoder->run()
- * DESCRIPTION: run the decoder thread either synchronously or asynchronously
- */
-int mad_decoder_run(struct mad_decoder *decoder, enum mad_decoder_mode mode)
-{
-  int result;
-  int (*run)(struct mad_decoder *) = 0;
-
-  switch (decoder->mode = mode) {
-  case MAD_DECODER_MODE_SYNC:
-    run = run_sync;
-    break;
-
-  case MAD_DECODER_MODE_ASYNC:
-    break;
-  }
-
-  if (run == 0)
-    return -1;
-  // static struct mad_sync_s sync_mem;
-  decoder->sync = (struct mad_sync_s *)malloc(sizeof(*decoder->sync));
-#if defined(TARGET_LPC1768)  
-  decoder->sync->synth = (struct mad_synth *)mad_malloc(sizeof(struct mad_synth));
-#else
-  decoder->sync->synth = (struct mad_synth *)malloc(sizeof(struct mad_synth));
-#endif
-  if (decoder->sync == 0)
-    return -1;
-
-  result = run(decoder);
-#if !defined(TARGET_LPC1768)  
-  free(decoder->sync->synth);
-#endif  
-  free(decoder->sync);
-  decoder->sync = 0;
-  reset_ahb_mem();
-  return result;
-}
-
-/*
- * NAME:        decoder->message()
- * DESCRIPTION: send a message to and receive a reply from the decoder process
- */
-int mad_decoder_message(struct mad_decoder *decoder,
-                        void *message, unsigned int *len)
-{
-  return -1;
-}