Initial revision

Original commit message from CVS:
Initial revision

1 files changed, 189 insertions, 0 deletions

diff --git a/gst/avi/audiocodecs.c b/gst/avi/audiocodecs.c
new file mode 100644
index 00000000..9415055c
--- /dev/null
+++ b/gst/avi/audiocodecs.c
@@ -0,0 +1,189 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+
+//#define DEBUG_ENABLED
+
+
+#include <wine/winbase.h>
+#include <wine/winerror.h>
+#include <wine/driver.h>
+#include <wine/msacm.h>
+#define WIN32
+#include <gstavidecoder.h>
+
+typedef struct _GstWinLoaderAudioData GstWinLoaderAudioData;
+
+struct _GstWinLoaderAudioData {
+  guchar ext_info[64];
+  WAVEFORMATEX wf;
+  HACMSTREAM srcstream;
+  GstPad *out;
+};
+
+
+static GstPad *gst_avi_decoder_get_audio_srcpad_MPEG(GstAviDecoder *avi_decoder, guint pad_nr, GstPadTemplate *temp);
+static GstPad *gst_avi_decoder_get_audio_srcpad_winloader(GstAviDecoder *avi_decoder, guint pad_nr, gst_riff_strf_auds *strf, GstPadTemplate *temp);
+static void gst_avi_decoder_winloader_audio_chain(GstPad *pad, GstBuffer *buf);
+
+GstPad *gst_avi_decoder_get_audio_srcpad(GstAviDecoder *avi_decoder, guint pad_nr, gst_riff_strf_auds *strf, GstPadTemplate *temp) 
+{
+  GstPad *newpad;
+
+  switch (strf->format) {
+    case GST_RIFF_WAVE_FORMAT_PCM:
+      newpad = gst_pad_new("audio_00", GST_PAD_SRC);
+      gst_pad_set_caps (newpad, gst_caps_new (
+			      "avidecoder_caps",
+			      "audio/raw",
+			      gst_props_new (
+				      "format", 	GST_PROPS_STRING ("int"),
+				        "law",  	GST_PROPS_INT (0),
+					"endianness",   GST_PROPS_INT (G_BYTE_ORDER),
+					"signed",	GST_PROPS_BOOLEAN (TRUE),
+					"width",	GST_PROPS_INT ((gint)strf->size),
+					"depth",	GST_PROPS_INT ((gint)strf->size),
+					"rate",		GST_PROPS_INT ((gint)strf->rate),
+					"channels",	GST_PROPS_INT ((gint)strf->channels),
+					NULL)));
+
+      avi_decoder->audio_pad[pad_nr] = newpad;
+      return newpad;
+    case GST_RIFF_WAVE_FORMAT_MPEGL12:
+    case GST_RIFF_WAVE_FORMAT_MPEGL3:
+      return gst_avi_decoder_get_audio_srcpad_MPEG(avi_decoder, pad_nr, temp);
+    default:
+      newpad = gst_avi_decoder_get_audio_srcpad_winloader(avi_decoder, pad_nr, strf, temp); 
+      if (newpad) return newpad;
+      printf("audio format %04x not supported\n", strf->format);
+      break;
+  }
+  return NULL;
+}
+
+static GstPad *gst_avi_decoder_get_audio_srcpad_MPEG(GstAviDecoder *avi_decoder, guint pad_nr, GstPadTemplate *temp) 
+{
+  GstElement *parse_audio, *decode;
+  GstPad *srcpad, *sinkpad, *newpad;
+
+  parse_audio = gst_elementfactory_make("mp3parse", "parse_audio");
+  g_return_val_if_fail(parse_audio != NULL, NULL);
+  decode = gst_elementfactory_make("mpg123", "decode_audio");
+  g_return_val_if_fail(decode != NULL, NULL);
+
+  gst_element_set_state(GST_ELEMENT(gst_object_get_parent(GST_OBJECT(avi_decoder))), GST_STATE_PAUSED);
+
+  gst_bin_add(GST_BIN(gst_object_get_parent(GST_OBJECT(avi_decoder))), parse_audio);
+  gst_bin_add(GST_BIN(gst_object_get_parent(GST_OBJECT(avi_decoder))), decode);
+
+  newpad = gst_pad_new("video", GST_PAD_SRC);
+  gst_pad_set_parent(newpad, GST_OBJECT(avi_decoder));
+
+  sinkpad = gst_element_get_pad(parse_audio,"sink");
+  gst_pad_connect(gst_element_get_pad(parse_audio,"src"),
+                  gst_element_get_pad(decode,"sink"));
+  gst_pad_set_chain_function (gst_element_get_pad(parse_audio,"src"),
+                              GST_RPAD_CHAINFUNC (gst_element_get_pad(decode,"sink")));
+  srcpad = gst_element_get_pad(decode,"src");
+
+  gst_pad_connect(newpad, sinkpad);
+  gst_pad_set_name(srcpad, "audio_00");
+  gst_pad_set_chain_function (newpad, GST_RPAD_CHAINFUNC (sinkpad));
+
+  avi_decoder->audio_pad[pad_nr] = newpad;
+  gst_element_set_state(GST_ELEMENT(gst_object_get_parent(GST_OBJECT(avi_decoder))), GST_STATE_PLAYING);
+
+  return srcpad;
+}
+
+static GstPad *gst_avi_decoder_get_audio_srcpad_winloader(GstAviDecoder *avi_decoder, guint pad_nr, gst_riff_strf_auds *strf, GstPadTemplate *temp) 
+{
+  HRESULT h;
+  GstWinLoaderAudioData *data;
+  GstPad *sinkpad, *newpad;
+
+  if (!gst_library_load("winloader")) {
+    gst_info("audiocodecs: could not load support library: 'winloader'\n");
+    return NULL;
+  }
+  gst_info("audiocodecs: winloader loaded\n");
+
+  avi_decoder->extra_data = g_malloc0(sizeof(GstWinLoaderAudioData));
+
+  data = (GstWinLoaderAudioData *)avi_decoder->extra_data;
+
+  memcpy(data->ext_info, strf, sizeof(WAVEFORMATEX));
+  memset(data->ext_info+18, 0, 32);
+
+  if (strf->rate == 0) 
+    return NULL;
+
+  data->wf.nChannels=strf->channels;
+  data->wf.nSamplesPerSec=strf->rate;
+  data->wf.nAvgBytesPerSec=2*data->wf.nSamplesPerSec*data->wf.nChannels;
+  data->wf.wFormatTag=strf->format;
+  data->wf.nBlockAlign=strf->blockalign;
+  data->wf.wBitsPerSample=strf->av_bps;
+  data->wf.cbSize=0;
+
+  gst_info("audiocodecs: trying to open library %p\n", data);
+  h = acmStreamOpen(
+           &data->srcstream,
+           (HACMDRIVER)NULL,       
+           (WAVEFORMATEX*)data->ext_info,  
+           (WAVEFORMATEX*)&data->wf,  
+           NULL,  
+           0,     
+           0,     
+           0);
+
+  if(h != S_OK)
+  {
+     if(h == ACMERR_NOTPOSSIBLE) {
+       printf("audiocodecs:: Unappropriate audio format\n");
+     }
+     printf("audiocodecs:: acmStreamOpen error\n");
+     return NULL;
+  }
+
+  newpad = gst_pad_new("audio", GST_PAD_SINK);
+  gst_pad_set_parent(newpad, GST_OBJECT(avi_decoder));
+  gst_pad_set_chain_function(newpad, gst_avi_decoder_winloader_audio_chain);
+
+  sinkpad = gst_pad_new("audio_00", GST_PAD_SRC);
+  gst_pad_set_parent(sinkpad, GST_OBJECT(avi_decoder));
+  gst_pad_connect(newpad, sinkpad);
+  gst_pad_set_chain_function (newpad, GST_RPAD_CHAINFUNC (sinkpad));
+
+  //gst_pad_connect(newpad, sinkpad);
+  avi_decoder->audio_pad[pad_nr] = newpad;
+
+  data->out = sinkpad;
+
+  GST_DEBUG (0,"gst_avi_decoder: pads created\n");
+  return sinkpad;
+}
+
+static void gst_avi_decoder_winloader_audio_chain(GstPad *pad, GstBuffer *buf) 
+{
+
+  GST_DEBUG (0,"gst_avi_decoder: got buffer %08lx %p\n", *(gulong *)GST_BUFFER_DATA(buf), GST_BUFFER_DATA(buf));
+  gst_buffer_unref(buf);  
+}