added CD digital audio "demuxer"

CVS patchset: 3778
CVS date: 2003/01/05 06:48:16

2 files changed, 280 insertions, 1 deletions

diff --git a/src/demuxers/Makefile.am b/src/demuxers/Makefile.am
index ef13ac6c2..35d8b763c 100644
--- a/src/demuxers/Makefile.am
+++ b/src/demuxers/Makefile.am
@@ -108,7 +108,7 @@ xineplug_dmx_games_la_LIBADD = $(XINELIB)
 xineplug_dmx_games_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
 
 xineplug_dmx_audio_la_SOURCES = group_audio.c demux_aud.c demux_aiff.c \
-				demux_cda.c demux_mpgaudio.c demux_realaudio.c \
+				demux_cdda.c demux_mpgaudio.c demux_realaudio.c \
 				demux_snd.c demux_voc.c demux_wav.c
 xineplug_dmx_audio_la_LIBADD = $(XINELIB)
 xineplug_dmx_audio_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
diff --git a/src/demuxers/demux_cdda.c b/src/demuxers/demux_cdda.c
new file mode 100644
index 000000000..f469da5b9
--- /dev/null
+++ b/src/demuxers/demux_cdda.c
@@ -0,0 +1,279 @@
+/*
+ * Copyright (C) 2001-2003 the xine project
+ *
+ * This file is part of xine, a free 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * CDDA "Demuxer" by Mike Melanson (melanson@pcisys.net)
+ * All this demuxer does is read raw CD frames and shovel them to the
+ * linear PCM "decoder" (which in turn sends them directly to the audio
+ * output target; this is a really fancy CD-playing architecture).
+ *
+ * $Id: demux_cdda.c,v 1.1 2003/01/05 06:48:16 tmmm Exp $
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "xine_internal.h"
+#include "xineutils.h"
+#include "demux.h"
+#include "buffer.h"
+#include "bswap.h"
+
+/* 44100 samples/sec * 2 bytes/samples * 2 channels */
+#define CD_BYTES_PER_SECOND (44100 * 2 * 2)
+
+typedef struct {
+
+  demux_plugin_t       demux_plugin;
+
+  xine_stream_t       *stream;
+
+  config_values_t     *config;
+
+  fifo_buffer_t       *video_fifo;
+  fifo_buffer_t       *audio_fifo;
+
+  input_plugin_t      *input;
+
+  int                  status;
+
+  int                  seek_flag;  /* this is set when a seek just occurred */
+
+  char                 last_mrl[1024];
+} demux_cdda_t;
+
+typedef struct {
+
+  demux_class_t     demux_class;
+
+  /* class-wide, global variables here */
+
+  xine_t           *xine;
+  config_values_t  *config;
+} demux_cdda_class_t;
+
+static int demux_cdda_send_chunk (demux_plugin_t *this_gen) {
+
+  demux_cdda_t *this = (demux_cdda_t *) this_gen;
+  buf_element_t *buf = NULL;
+
+  buf = this->input->read_block(this->input, this->audio_fifo,
+    this->input->get_blocksize(this->input));
+  if (!buf) {
+    this->status = DEMUX_FINISHED;
+    return this->status;
+  }
+
+  buf->type = BUF_AUDIO_LPCM_LE;
+  buf->extra_info->input_pos = this->input->get_current_pos(this->input);
+  buf->extra_info->input_length = this->input->get_length(this->input);
+  buf->pts = buf->extra_info->input_pos;
+  buf->pts *= 90000;
+  buf->pts /= CD_BYTES_PER_SECOND;
+  buf->extra_info->input_time = buf->pts / 90000;
+  buf->decoder_flags |= BUF_FLAG_FRAME_END;
+
+  if (this->seek_flag) {
+    xine_demux_control_newpts(this->stream, buf->pts, 0);
+    this->seek_flag = 0;
+  }
+
+  this->audio_fifo->put (this->audio_fifo, buf);
+
+  return this->status;
+}
+
+static void demux_cdda_send_headers(demux_plugin_t *this_gen) {
+
+  demux_cdda_t *this = (demux_cdda_t *) this_gen;
+  buf_element_t *buf;
+
+  this->video_fifo  = this->stream->video_fifo;
+  this->audio_fifo  = this->stream->audio_fifo;
+
+  this->status = DEMUX_OK;
+
+  /* load stream information */
+  this->stream->stream_info[XINE_STREAM_INFO_SEEKABLE] = 1;
+  this->stream->stream_info[XINE_STREAM_INFO_HAS_VIDEO] = 0;
+  this->stream->stream_info[XINE_STREAM_INFO_HAS_AUDIO] = 1;
+  this->stream->stream_info[XINE_STREAM_INFO_AUDIO_CHANNELS] = 2;
+  this->stream->stream_info[XINE_STREAM_INFO_AUDIO_SAMPLERATE] = 44100;
+  this->stream->stream_info[XINE_STREAM_INFO_AUDIO_BITS] = 16;
+
+  /* send start buffers */
+  xine_demux_control_start(this->stream);
+
+  /* send init info to decoders */
+  if (this->audio_fifo) {
+    buf = this->audio_fifo->buffer_pool_alloc (this->audio_fifo);
+    buf->type = BUF_AUDIO_LPCM_LE;
+    buf->decoder_flags = BUF_FLAG_HEADER;
+    buf->decoder_info[0] = 0;
+    buf->decoder_info[1] = 44100;
+    buf->decoder_info[2] = 16;
+    buf->decoder_info[3] = 2;
+    buf->size = 0;
+    this->audio_fifo->put (this->audio_fifo, buf);
+  }
+}
+
+static int demux_cdda_seek (demux_plugin_t *this_gen,
+                            off_t start_pos, int start_time) {
+
+  demux_cdda_t *this = (demux_cdda_t *) this_gen;
+
+  this->input->seek(this->input, start_pos, SEEK_SET);
+  this->seek_flag = 1;
+  this->status = DEMUX_OK;
+  xine_demux_flush_engine (this->stream);
+
+  return this->status;
+}
+
+static void demux_cdda_dispose (demux_plugin_t *this_gen) {
+  demux_cdda_t *this = (demux_cdda_t *) this_gen;
+
+  free(this);
+}
+
+static int demux_cdda_get_status (demux_plugin_t *this_gen) {
+  demux_cdda_t *this = (demux_cdda_t *) this_gen;
+
+  return this->status;
+}
+
+/* return the approximate length in seconds */
+static int demux_cdda_get_stream_length (demux_plugin_t *this_gen) {
+
+  demux_cdda_t *this = (demux_cdda_t *) this_gen;
+
+  return this->input->get_length(this->input) / CD_BYTES_PER_SECOND;
+}
+
+static uint32_t demux_cdda_get_capabilities(demux_plugin_t *this_gen)
+{
+  return DEMUX_CAP_NOCAP;
+}
+
+static int demux_cdda_get_optional_data(demux_plugin_t *this_gen,
+                                        void *data, int data_type)
+{
+  return DEMUX_OPTIONAL_UNSUPPORTED;
+}
+
+static demux_plugin_t *open_plugin (demux_class_t *class_gen, xine_stream_t *stream,
+                                    input_plugin_t *input_gen) {
+
+  input_plugin_t *input = (input_plugin_t *) input_gen;
+  demux_cdda_t   *this;
+
+  if (! (input->get_capabilities(input) & INPUT_CAP_SEEKABLE)) {
+    printf(_("demux_cdda.c: input not seekable, can not handle!\n"));
+    return NULL;
+  }
+
+  this         = xine_xmalloc (sizeof (demux_cdda_t));
+  this->stream = stream;
+  this->input  = input;
+
+  this->demux_plugin.send_headers      = demux_cdda_send_headers;
+  this->demux_plugin.send_chunk        = demux_cdda_send_chunk;
+  this->demux_plugin.seek              = demux_cdda_seek;
+  this->demux_plugin.dispose           = demux_cdda_dispose;
+  this->demux_plugin.get_status        = demux_cdda_get_status;
+  this->demux_plugin.get_stream_length = demux_cdda_get_stream_length;
+  this->demux_plugin.get_video_frame   = NULL;
+  this->demux_plugin.got_video_frame_cb= NULL;
+  this->demux_plugin.get_capabilities  = demux_cdda_get_capabilities;
+  this->demux_plugin.get_optional_data = demux_cdda_get_optional_data;
+  this->demux_plugin.demux_class       = class_gen;
+
+  this->status = DEMUX_FINISHED;
+
+  switch (stream->content_detection_method) {
+
+  case METHOD_BY_CONTENT:
+  case METHOD_EXPLICIT:
+  case METHOD_BY_EXTENSION:
+    if (strncasecmp (input->get_mrl (input), "cdda:", 5)) {
+      free (this);
+      return NULL;
+    }
+
+  break;
+
+  default:
+    free (this);
+    return NULL;
+  }
+
+  strncpy (this->last_mrl, input->get_mrl (input), 1024);
+
+  return &this->demux_plugin;
+}
+
+static char *get_description (demux_class_t *this_gen) {
+  return "CD Digital Audio demux plugin";
+}
+
+static char *get_identifier (demux_class_t *this_gen) {
+  return "CDDA";
+}
+
+static char *get_extensions (demux_class_t *this_gen) {
+  return NULL;
+}
+
+static char *get_mimetypes (demux_class_t *this_gen) {
+  return NULL;
+}
+
+static void class_dispose (demux_class_t *this_gen) {
+
+  demux_cdda_class_t *this = (demux_cdda_class_t *) this_gen;
+
+  free (this);
+}
+
+void *demux_cdda_init_plugin (xine_t *xine, void *data) {
+
+  demux_cdda_class_t     *this;
+
+  this         = xine_xmalloc (sizeof (demux_cdda_class_t));
+  this->config = xine->config;
+  this->xine   = xine;
+
+  this->demux_class.open_plugin     = open_plugin;
+  this->demux_class.get_description = get_description;
+  this->demux_class.get_identifier  = get_identifier;
+  this->demux_class.get_mimetypes   = get_mimetypes;
+  this->demux_class.get_extensions  = get_extensions;
+  this->demux_class.dispose         = class_dispose;
+
+  return this;
+}