FS-7500: add raw video codec yuv I420

src/mod/codecs/mod_yuv/Makefile

@@ -0,0 +1,2 @@
+BASE=../../../..
+include $(BASE)/build/modmake.rules

src/mod/codecs/mod_yuv/mod_yuv.c

@@ -0,0 +1,110 @@
+/*
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Seven Du <dujinfang@gmail.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ *
+ * mod_yuv.c -- YUV (raw) Video Codec
+ *
+ */
+
+#include <switch.h>
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_yuv_load);
+SWITCH_MODULE_DEFINITION(mod_yuv, mod_yuv_load, NULL, NULL);
+
+static switch_status_t switch_yuv_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
+{
+	int encoding, decoding;
+
+	encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
+	decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
+
+	if (!(encoding || decoding)) {
+		return SWITCH_STATUS_FALSE;
+	} else {
+		if (codec->fmtp_in) {
+			codec->fmtp_out = switch_core_strdup(codec->memory_pool, codec->fmtp_in);
+		}
+		return SWITCH_STATUS_SUCCESS;
+	}
+}
+
+static switch_status_t switch_yuv_encode(switch_codec_t *codec,
+										  switch_codec_t *other_codec,
+										  void *decoded_data,
+										  uint32_t decoded_data_len,
+										  uint32_t decoded_rate, void *encoded_data, uint32_t *encoded_data_len, uint32_t *encoded_rate,
+										  unsigned int *flag)
+{
+	/* yuv encode is unclear, so return 0 for now */
+	*encoded_data_len = 0;
+	*flag |= SFF_MARKER;
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t switch_yuv_decode(switch_codec_t *codec,
+										  switch_codec_t *other_codec,
+										  void *encoded_data,
+										  uint32_t encoded_data_len,
+										  uint32_t encoded_rate, void *decoded_data, uint32_t *decoded_data_len, uint32_t *decoded_rate,
+										  unsigned int *flag)
+{
+	if (*decoded_data_len < encoded_data_len) return SWITCH_STATUS_FALSE;
+
+	codec->dec_picture.width = codec->enc_picture.width;
+	codec->dec_picture.height = codec->enc_picture.height;
+	memcpy(decoded_data, encoded_data, encoded_data_len);
+	*decoded_data_len = encoded_data_len;
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t switch_yuv_destroy(switch_codec_t *codec)
+{
+	return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_yuv_load)
+{
+	switch_codec_interface_t *codec_interface;
+	/* connect my internal structure to the blank pointer passed to me */
+	*module_interface = switch_loadable_module_create_module_interface(pool, modname);
+	SWITCH_ADD_CODEC(codec_interface, "YUV I420 Video (raw)");
+
+	switch_core_codec_add_video_implementation(pool, codec_interface, 99, "I420", NULL,
+		switch_yuv_init, switch_yuv_encode, switch_yuv_decode, switch_yuv_destroy);
+
+	/* indicate that the module should continue to be loaded */
+	return SWITCH_STATUS_SUCCESS;
+}
+
+/* For Emacs:
+ * Local Variables:
+ * mode:c
+ * indent-tabs-mode:t
+ * tab-width:4
+ * c-basic-offset:4
+ * End:
+ * For VIM:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
+ */