Changeset 2176:c8fe291eaa53 in roaraudio

Timestamp:

07/26/09 17:41:30 (15 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

wrote basic codec

File:

• libroardsp/transcode.c (modified) (2 diffs)

libroardsp/transcode.c

@@ -39 +39 @@
 };
 
-int roar_xcoder_init(struct roar_xcoder * state, int encoder, struct roar_audio_info * info, struct roar_vio_calls * vio);
+int roar_xcoder_init(struct roar_xcoder * state, int encoder, struct roar_audio_info * info, struct roar_vio_calls * vio) {
+ int i;
+
+ if ( state == NULL || info == NULL )
+  return -1;
+
+ memset(state, 0, sizeof(struct roar_xcoder));
+
+ for (i = 0; g_xcoders[i].codec != -1; i++) {
+  if ( g_xcoders[i].codec == info->codec ) {
+   state->entry = &(g_xcoders[i]);
+   break;
+  }
+ }
+
+ if ( state->entry == NULL )
+  return -1;
+
+ state->stage      = ROAR_XCODER_STAGE_NONE;
+ state->encode     = encoder;
+ state->packet_len = -1;
+
+ if ( roar_xcoder_set_backend(state, vio) == -1 )
+  return -1;
+
+ memcpy(&(state->info.coded), info, sizeof(struct roar_audio_info));
+ memcpy(&(state->info.pcm  ), info, sizeof(struct roar_audio_info));
+
+ state->info.pcm.codec = ROAR_CODEC_DEFAULT;
+
+ if ( _FUNC(init) == NULL )
+  return -1;
+
+ if ( _FUNC(init)(state) != 0 )
+  return -1;
+
+ state->stage      = ROAR_XCODER_STAGE_INITED;
+
+ return 0;
+}
+
 int roar_xcoder_set_backend(struct roar_xcoder * state, struct roar_vio_calls * vio) {
  _CHECK();
@@ -78 +118 @@
 }
 
-int roar_xcoder_proc_packet(struct roar_xcoder * state, void * buf, size_t len);
+int roar_xcoder_proc_packet(struct roar_xcoder * state, void * buf, size_t len) {
+ _CHECK();
+
+ if ( state->encode ) {
+  _CHECK_BASIC(encode);
+  return _FUNC(encode)(state, buf, len);
+ } else {
+  _CHECK_BASIC(decode);
+  return _FUNC(decode)(state, buf, len);
+ }
+}
+
 int roar_xcoder_proc       (struct roar_xcoder * state, void * buf, size_t len) {
  return -1;