1 files changed, 151 insertions, 0 deletions
diff --git a/libaac/aacEncode.cpp b/libaac/aacEncode.cpp
new file mode 100644
index 0000000..1d5b273
--- /dev/null
+++ b/libaac/aacEncode.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * */
+
+#include "aacEncode.h"
+#include "aacenc_lib.h"
+#include <utils/Log.h>
+#include <string.h>
+
+struct aacInfo
+{
+    AACENC_BufDesc inBuff;
+    AACENC_BufDesc outBuff;
+    AACENC_InArgs  inArg;
+    AACENC_OutArgs outArg;
+};
+
+aacEncode::aacEncode() {
+    p_aacHandle = NULL;
+    p_aacInfo = NULL;
+    memset(&s_aacConfig, 0, sizeof(s_aacConfig));
+}
+
+aacEncode::~aacEncode() {
+    if(!p_aacHandle) {
+        return;
+    }
+
+    if(aacEncClose((HANDLE_AACENCODER*)(&p_aacHandle)) != AACENC_OK) {
+        ALOGE("aacEncClose Failed");
+        return;
+    }
+}
+
+bool aacEncode::aacConfigure(aacConfigType * p_aacConfig) {
+    if(!p_aacConfig) {
+        return false;
+    }
+
+    memcpy(&s_aacConfig, p_aacConfig, sizeof(s_aacConfig));
+
+    /* Configure AAC encoder here */
+
+    AACENC_ERROR err = AACENC_OK;
+
+    p_aacInfo = (void*)new(aacInfo);
+    if(!p_aacInfo) {
+        ALOGE("Failed to allocate aacInfo");
+        return false;
+    }
+
+    /* Open AAC encoder */
+    err = aacEncOpen((HANDLE_AACENCODER*)(&p_aacHandle),
+                      0x01 /* AAC */,
+                      s_aacConfig.n_channels);
+
+    if(err != AACENC_OK) {
+        ALOGE("Failed top open AAC encoder");
+        return false;
+    }
+
+    /* Set Bitrate and SampleRate */
+    err = aacEncoder_SetParam((HANDLE_AACENCODER)p_aacHandle,
+                               AACENC_BITRATE,
+                               s_aacConfig.n_bitrate);
+
+    if(err != AACENC_OK) {
+        ALOGE("Failed to set bitrate param to AAC encoder");
+        return false;
+    }
+
+    err = aacEncoder_SetParam((HANDLE_AACENCODER)p_aacHandle,
+                                   AACENC_SAMPLERATE,
+                                   s_aacConfig.n_sampleRate);
+
+    if(err != AACENC_OK) {
+        ALOGE("Failed to set samplerate param to AAC encoder");
+        return false;
+    }
+
+    /* Fix Channel mode and order */
+    /* TODO */
+
+    /* Prefill encode structures */
+    /* TODO */
+
+    return true;
+}
+
+bool aacEncode::aacEncodeFrame(unsigned char * p_inBuffer,
+                              unsigned int n_inSize,
+                              unsigned char * p_outBuffer,
+                              unsigned int n_outSize,
+                              unsigned int * p_length) {
+    (void)n_inSize;
+    (void)n_outSize;
+    (void)p_length;
+    if(!p_inBuffer || !p_outBuffer) {
+        ALOGE("No buffers provided for AAC encoder");
+        return false;
+    }
+
+    aacInfo *tempAacInfo = (aacInfo*)p_aacInfo;
+    tempAacInfo->inBuff.bufs = (void**) (&p_inBuffer);
+    tempAacInfo->outBuff.bufs = (void**) (&p_outBuffer);
+
+    AACENC_ERROR err = AACENC_OK;
+
+    if(p_aacHandle) {
+        err = aacEncEncode((HANDLE_AACENCODER)p_aacHandle,
+                           &tempAacInfo->inBuff,
+                           &tempAacInfo->outBuff,
+                           &tempAacInfo->inArg,
+                           &tempAacInfo->outArg);
+
+        if(err != AACENC_OK) {
+            ALOGE("Failed to encode buffer");
+            return false;
+        }
+    } else {
+        ALOGE("No encoder available");
+        return false;
+    }
+
+    return true;
+}