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Diffstat (limited to 'tinyDAV/src/codecs/bv/tdav_codec_bv16.c')
-rw-r--r--tinyDAV/src/codecs/bv/tdav_codec_bv16.c249
1 files changed, 249 insertions, 0 deletions
diff --git a/tinyDAV/src/codecs/bv/tdav_codec_bv16.c b/tinyDAV/src/codecs/bv/tdav_codec_bv16.c
new file mode 100644
index 0000000..f78f526
--- /dev/null
+++ b/tinyDAV/src/codecs/bv/tdav_codec_bv16.c
@@ -0,0 +1,249 @@
+/*
+* Copyright (C) 2009-2010 Mamadou Diop.
+*
+* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
+*
+* This file is part of Open Source Doubango Framework.
+*
+* DOUBANGO 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 3 of the License, or
+* (at your option) any later version.
+*
+* DOUBANGO 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 DOUBANGO.
+*
+*/
+
+/**@file tdav_codec_bv16.c
+ * @brief BroadVoice16 codec
+ * The payloader/depayloader follow RFC 4298
+ * @author Mamadou Diop <diopmamadou(at)doubango.org>
+ *
+ * @date Created: Sat Nov 8 16:54:58 2009 mdiop
+ */
+#include "tinydav/codecs/bv/tdav_codec_bv16.h"
+
+#if HAVE_BV16
+
+#if defined(_MSC_VER)
+# pragma comment(lib, "..\\thirdparties\\win32\\lib\\BroadVoice16\\libbv16.a")
+#endif
+
+#include "tsk_memory.h"
+#include "tsk_debug.h"
+
+#include "typedef.h"
+#include "bvcommon.h"
+#include "bv16cnst.h"
+#include "bv16strct.h"
+#include "bv16.h"
+#include "utility.h"
+#if G192BITSTREAM
+#include "g192.h"
+#else
+#include "bitpack.h"
+#endif
+#include "memutil.h"
+
+/* RFC 4298 - 3.1. BroadVoice16 Bit Stream Definition */
+#define TDAV_BV16_FRAME_SIZE 10
+#define FRSZ_IN_U8 (FRSZ*2)
+
+/* ============ BV16 Plugin interface ================= */
+
+#define tdav_codec_bv16_fmtp_get tsk_null
+#define tdav_codec_bv16_fmtp_set tsk_null
+
+static int sizestate = sizeof(struct BV16_Encoder_State);
+static int sizebitstream = sizeof(struct BV16_Bit_Stream);
+
+int tdav_codec_bv16_open(tmedia_codec_t* self)
+{
+ tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
+
+ if(!bv16->encoder.state){
+ bv16->encoder.state = allocWord16(0, sizestate/2-1);
+ Reset_BV16_Encoder((struct BV16_Encoder_State*)bv16->encoder.state);
+ }
+ if(!bv16->encoder.bs){
+ bv16->encoder.bs = allocWord16(0, sizebitstream/2-1);
+ }
+ if(!bv16->encoder.x){
+ bv16->encoder.x = allocWord16(0, FRSZ-1);
+ }
+
+ if(!bv16->decoder.state){
+ bv16->decoder.state = allocWord16(0, sizestate/2-1);
+ Reset_BV16_Decoder((struct BV16_Decoder_State*)bv16->decoder.state);
+ }
+ if(!bv16->decoder.bs){
+ bv16->decoder.bs = allocWord16(0, sizebitstream/2-1);
+ }
+ if(!bv16->decoder.x){
+ bv16->decoder.x = allocWord16(0, FRSZ-1);
+ }
+
+ return 0;
+}
+
+int tdav_codec_bv16_close(tmedia_codec_t* self)
+{
+ tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
+
+ if(bv16->encoder.state){
+ deallocWord16(bv16->encoder.state, 0, sizestate/2-1);
+ bv16->encoder.state = tsk_null;
+ }
+ if(bv16->encoder.bs){
+ deallocWord16(bv16->encoder.bs, 0, sizebitstream/2-1);
+ bv16->encoder.bs = tsk_null;
+ }
+ if(bv16->encoder.x){
+ deallocWord16(bv16->encoder.x, 0, FRSZ-1);
+ bv16->encoder.x = tsk_null;
+ }
+
+ if(bv16->decoder.state){
+ deallocWord16(bv16->decoder.state, 0, sizestate/2-1);
+ bv16->decoder.state = tsk_null;
+ }
+ if(bv16->encoder.bs){
+ deallocWord16(bv16->decoder.bs, 0, sizebitstream/2-1);
+ bv16->decoder.bs = tsk_null;
+ }
+ if(bv16->decoder.x){
+ deallocWord16(bv16->decoder.x, 0, FRSZ-1);
+ bv16->decoder.x = tsk_null;
+ }
+
+
+
+ return 0;
+}
+
+tsk_size_t tdav_codec_bv16_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size)
+{
+ //tsk_size_t out_size = 0;
+ tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
+
+ if(!self || !in_data || !in_size || !out_data){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return 0;
+ }
+
+ return 0;
+}
+
+tsk_size_t tdav_codec_bv16_decode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size, const tsk_object_t* proto_hdr)
+{
+ tsk_size_t out_size = 0;
+ int i;
+ tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
+ uint8_t mama[600];
+
+ if(!self || !in_data || !in_size || !out_data || (in_size % TDAV_BV16_FRAME_SIZE)){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return 0;
+ }
+
+ for(i=0; i<(int)in_size; i+=TDAV_BV16_FRAME_SIZE){
+ BV16_BitUnPack(mama, (struct BV16_Bit_Stream*)bv16->decoder.bs);
+ //BV16_BitUnPack(&((UWord8 *)in_data)[i], (struct BV16_Bit_Stream*)bv16->decoder.bs);
+ BV16_Decode((struct BV16_Bit_Stream*)bv16->decoder.bs, (struct BV16_Decoder_State*)bv16->decoder.state, bv16->decoder.x);
+
+
+ if(*out_max_size<(out_size + FRSZ_IN_U8)){
+ if(!(*out_data = tsk_realloc(*out_data, (out_size + FRSZ_IN_U8)))){
+ TSK_DEBUG_ERROR("Failed to allocate new buffer");
+ *out_max_size = 0;
+ return 0;
+ }
+ *out_max_size = (out_size + FRSZ_IN_U8);
+ }
+ memcpy(&((uint8_t*)* out_data)[out_size], bv16->decoder.x, FRSZ_IN_U8);
+ out_size += FRSZ_IN_U8;
+ }
+
+
+ return out_size;
+}
+
+tsk_bool_t tdav_codec_bv16_fmtp_match(const tmedia_codec_t* codec, const char* fmtp)
+{ /* always match */
+ return tsk_true;
+}
+
+
+//
+// BV16 Plugin definition
+//
+
+/* constructor */
+static tsk_object_t* tdav_codec_bv16_ctor(tsk_object_t * self, va_list * app)
+{
+ tdav_codec_bv16_t *bv16 = self;
+ if(bv16){
+ /* init base: called by tmedia_codec_create() */
+ /* init self */
+ }
+ return self;
+}
+/* destructor */
+static tsk_object_t* tdav_codec_bv16_dtor(tsk_object_t * self)
+{
+ tdav_codec_bv16_t *bv16 = self;
+ if(bv16){
+ /* deinit base */
+ tmedia_codec_audio_deinit(bv16);
+ /* deinit self */
+
+ }
+
+ return self;
+}
+/* object definition */
+static const tsk_object_def_t tdav_codec_bv16_def_s =
+{
+ sizeof(tdav_codec_bv16_t),
+ tdav_codec_bv16_ctor,
+ tdav_codec_bv16_dtor,
+ tmedia_codec_cmp,
+};
+/* plugin definition*/
+static const tmedia_codec_plugin_def_t tdav_codec_bv16_plugin_def_s =
+{
+ &tdav_codec_bv16_def_s,
+
+ tmedia_audio,
+ "BV16",
+ "BroadVoice16 Rate",
+ TMEDIA_CODEC_FORMAT_BV16,
+ tsk_true,
+ 8000, // rate
+
+ { /* audio */
+ 1, // channels
+ 20 // ptime
+ },
+
+ /* video */
+ {0},
+
+ tdav_codec_bv16_open,
+ tdav_codec_bv16_close,
+ tdav_codec_bv16_encode,
+ tdav_codec_bv16_decode,
+ tdav_codec_bv16_fmtp_match,
+ tdav_codec_bv16_fmtp_get,
+ tdav_codec_bv16_fmtp_set
+};
+const tmedia_codec_plugin_def_t *tdav_codec_bv16_plugin_def_t = &tdav_codec_bv16_plugin_def_s;
+
+
+#endif /* HAVE_BV16 */
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