Plumbing to recognize AV1 content

Recognize AV1 content in various container formats, so we can extract
and pass to the AV1 codec.

Bug: 111936705
Test: playback of AV1 videos
Change-Id: I8a5523741481586b3569006236bd1fc92869ee76
diff --git a/media/codec2/components/aom/C2SoftAomDec.h b/media/codec2/components/aom/C2SoftAomDec.h
new file mode 100644
index 0000000..4c82647
--- /dev/null
+++ b/media/codec2/components/aom/C2SoftAomDec.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2018 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 ANDROID_C2_SOFT_AV1_DEC_H_
+#define ANDROID_C2_SOFT_AV1_DEC_H_
+
+#include <SimpleC2Component.h>
+#include "aom/aom_decoder.h"
+#include "aom/aomdx.h"
+
+#define GETTIME(a, b) gettimeofday(a, b);
+#define TIME_DIFF(start, end, diff)     \
+    diff = (((end).tv_sec - (start).tv_sec) * 1000000) + \
+            ((end).tv_usec - (start).tv_usec);
+
+namespace android {
+
+struct C2SoftAomDec : public SimpleC2Component {
+    class IntfImpl;
+
+    C2SoftAomDec(const char* name, c2_node_id_t id,
+                 const std::shared_ptr<IntfImpl>& intfImpl);
+    virtual ~C2SoftAomDec();
+
+    // From SimpleC2Component
+    c2_status_t onInit() override;
+    c2_status_t onStop() override;
+    void onReset() override;
+    void onRelease() override;
+    c2_status_t onFlush_sm() override;
+    void process(const std::unique_ptr<C2Work>& work,
+                 const std::shared_ptr<C2BlockPool>& pool) override;
+    c2_status_t drain(uint32_t drainMode,
+                      const std::shared_ptr<C2BlockPool>& pool) override;
+
+   private:
+    std::shared_ptr<IntfImpl> mIntf;
+    aom_codec_ctx_t* mCodecCtx;
+
+    uint32_t mWidth;
+    uint32_t mHeight;
+    bool mSignalledOutputEos;
+    bool mSignalledError;
+
+    #ifdef FILE_DUMP_ENABLE
+    char mInFile[200];
+    char mOutFile[200];
+    #endif /* FILE_DUMP_ENABLE */
+
+    struct timeval mTimeStart;   // Time at the start of decode()
+    struct timeval mTimeEnd;     // Time at the end of decode()
+
+    status_t initDecoder();
+    status_t destroyDecoder();
+    void finishWork(uint64_t index, const std::unique_ptr<C2Work>& work,
+                    const std::shared_ptr<C2GraphicBlock>& block);
+    bool outputBuffer(const std::shared_ptr<C2BlockPool>& pool,
+                      const std::unique_ptr<C2Work>& work);
+
+    c2_status_t drainInternal(uint32_t drainMode,
+                              const std::shared_ptr<C2BlockPool>& pool,
+                              const std::unique_ptr<C2Work>& work);
+
+    C2_DO_NOT_COPY(C2SoftAomDec);
+};
+
+#ifdef FILE_DUMP_ENABLE
+
+#define INPUT_DUMP_PATH "/data/local/tmp/temp/av1"
+#define INPUT_DUMP_EXT "webm"
+#define OUTPUT_DUMP_PATH "/data/local/tmp/temp/av1"
+#define OUTPUT_DUMP_EXT "av1"
+#define GENERATE_FILE_NAMES()                                                 \
+    {                                                                         \
+        GETTIME(&mTimeStart, NULL);                                           \
+        strcpy(mInFile, "");                                                  \
+        ALOGD("GENERATE_FILE_NAMES");                                         \
+        sprintf(mInFile, "%s_%ld.%ld.%s", INPUT_DUMP_PATH, mTimeStart.tv_sec, \
+                mTimeStart.tv_usec, INPUT_DUMP_EXT);                          \
+        strcpy(mOutFile, "");                                                 \
+        sprintf(mOutFile, "%s_%ld.%ld.%s", OUTPUT_DUMP_PATH,                  \
+                mTimeStart.tv_sec, mTimeStart.tv_usec, OUTPUT_DUMP_EXT);      \
+    }
+
+#define CREATE_DUMP_FILE(m_filename)                     \
+    {                                                    \
+        FILE* fp = fopen(m_filename, "wb");              \
+        if (fp != NULL) {                                \
+            ALOGD("Opened file %s", m_filename);         \
+            fclose(fp);                                  \
+        } else {                                         \
+            ALOGD("Could not open file %s", m_filename); \
+        }                                                \
+    }
+#define DUMP_TO_FILE(m_filename, m_buf, m_size)              \
+    {                                                        \
+        FILE* fp = fopen(m_filename, "ab");                  \
+        if (fp != NULL && m_buf != NULL) {                   \
+            int i;                                           \
+            ALOGD("Dump to file!");                          \
+            i = fwrite(m_buf, 1, m_size, fp);                \
+            if (i != (int)m_size) {                          \
+                ALOGD("Error in fwrite, returned %d", i);    \
+                perror("Error in write to file");            \
+            }                                                \
+            fclose(fp);                                      \
+        } else {                                             \
+            ALOGD("Could not write to file %s", m_filename); \
+            if (fp != NULL) fclose(fp);                      \
+        }                                                    \
+    }
+#else /* FILE_DUMP_ENABLE */
+#define INPUT_DUMP_PATH
+#define INPUT_DUMP_EXT
+#define OUTPUT_DUMP_PATH
+#define OUTPUT_DUMP_EXT
+#define GENERATE_FILE_NAMES()
+#define CREATE_DUMP_FILE(m_filename)
+#define DUMP_TO_FILE(m_filename, m_buf, m_size)
+#endif /* FILE_DUMP_ENABLE */
+
+}  // namespace android
+
+#endif  // ANDROID_C2_SOFT_AV1_DEC_H_