From 3b5a6b9fa6c6825a1d0b441429e2bb365b259827 Mon Sep 17 00:00:00 2001
From: Harish Mahendrakar <harish.mahendrakar@ittiam.com>
Date: Tue, 20 May 2014 09:30:59 -0700
Subject: stagefright: added support, and SoftOMX decoder, for HEVC

also fixed QuerySupportedProfileLevels in
SoftVideoDecoderOMXComponent.cpp

Bug: 14571712
Change-Id: Ifa3793f7c1b18ac5e8c0a096848c998cabd9e777
---
 media/libstagefright/codecs/hevcdec/SoftHEVC.h | 117 +++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 media/libstagefright/codecs/hevcdec/SoftHEVC.h

(limited to 'media/libstagefright/codecs/hevcdec/SoftHEVC.h')

diff --git a/media/libstagefright/codecs/hevcdec/SoftHEVC.h b/media/libstagefright/codecs/hevcdec/SoftHEVC.h
new file mode 100644
index 0000000..20db0e1
--- /dev/null
+++ b/media/libstagefright/codecs/hevcdec/SoftHEVC.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SOFT_HEVC_H_
+
+#define SOFT_HEVC_H_
+
+#include "SoftVideoDecoderOMXComponent.h"
+#include <sys/time.h>
+
+namespace android {
+
+#define ivd_aligned_malloc(alignment, size) memalign(alignment, size)
+#define ivd_aligned_free(buf) free(buf)
+
+/** Number of entries in the time-stamp array */
+#define MAX_TIME_STAMPS 64
+
+/** Maximum number of cores supported by the codec */
+#define CODEC_MAX_NUM_CORES 4
+
+#define CODEC_MAX_WIDTH     1920
+
+#define CODEC_MAX_HEIGHT    1088
+
+/** Input buffer size */
+#define INPUT_BUF_SIZE (1024 * 1024)
+
+#define MIN(a, b) ((a) < (b)) ? (a) : (b)
+
+/** Used to remove warnings about unused parameters */
+#define UNUSED(x) ((void)(x))
+
+/** Get time */
+#define GETTIME(a, b) gettimeofday(a, b);
+
+/** Compute difference between start and end */
+#define TIME_DIFF(start, end, diff) \
+    diff = ((end.tv_sec - start.tv_sec) * 1000000) + \
+            (end.tv_usec - start.tv_usec);
+
+struct SoftHEVC: public SoftVideoDecoderOMXComponent {
+    SoftHEVC(const char *name, const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData, OMX_COMPONENTTYPE **component);
+
+protected:
+    virtual ~SoftHEVC();
+
+    virtual void onQueueFilled(OMX_U32 portIndex);
+    virtual void onPortFlushCompleted(OMX_U32 portIndex);
+    virtual void onReset();
+private:
+    // Number of input and output buffers
+    enum {
+        kNumBuffers = 8
+    };
+
+    iv_obj_t *mCodecCtx;         // Codec context
+    iv_mem_rec_t *mMemRecords;   // Memory records requested by the codec
+    size_t mNumMemRecords;       // Number of memory records requested by the codec
+
+    uint32_t mNewWidth;          // New width after change in resolution
+    uint32_t mNewHeight;         // New height after change in resolution
+    uint32_t mInitWidth;         // Width used during codec creation
+    uint32_t mInitHeight;        // Height used during codec creation
+    size_t mStride;              // Stride to be used for display buffers
+
+    size_t mNumCores;            // Number of cores to be uesd by the codec
+
+    struct timeval mTimeStart;   // Time at the start of decode()
+    struct timeval mTimeEnd;     // Time at the end of decode()
+
+    // Internal buffer to be used to flush out the buffers from decoder
+    uint8_t *mFlushOutBuffer;
+
+    // Status of entries in the timestamp array
+    bool mTimeStampsValid[MAX_TIME_STAMPS];
+
+    // Timestamp array - Since codec does not take 64 bit timestamps,
+    // they are maintained in the plugin
+    OMX_S64 mTimeStamps[MAX_TIME_STAMPS];
+
+    OMX_COLOR_FORMATTYPE mOmxColorFormat;    // OMX Color format
+    IV_COLOR_FORMAT_T mIvColorFormat;        // Ittiam Color format
+
+    bool mIsInFlush;        // codec is flush mode
+    bool mReceivedEOS;      // EOS is receieved on input port
+    bool mIsAdapting;       // plugin in middle of change in resolution
+
+    status_t initDecoder();
+    status_t deInitDecoder();
+    status_t setFlushMode();
+    status_t setParams(WORD32 stride, IVD_VIDEO_DECODE_MODE_T decMode);
+    status_t getVersion();
+    status_t setNumCores();
+    status_t resetDecoder();
+    status_t resetPlugin();
+
+    DISALLOW_EVIL_CONSTRUCTORS (SoftHEVC);
+};
+
+} // namespace android
+
+#endif  // SOFT_HEVC_H_
-- 
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