Initial checkin of preliminary rtsp support for stagefright.

Change-Id: I0722aa888098c0c1361c97a4c1b123d910afc207

1 files changed, 98 insertions, 0 deletions

diff --git a/media/libstagefright/rtsp/VideoSource.h b/media/libstagefright/rtsp/VideoSource.h
new file mode 100644
index 0000000..ae0c85b
--- /dev/null
+++ b/media/libstagefright/rtsp/VideoSource.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2010 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 VIDEO_SOURCE_H_
+
+#define VIDEO_SOURCE_H_
+
+#include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MetaData.h>
+
+namespace android {
+
+class VideoSource : public MediaSource {
+    static const int32_t kFramerate = 24;  // fps
+
+public:
+    VideoSource(int width, int height)
+        : mWidth(width),
+          mHeight(height),
+          mSize((width * height * 3) / 2) {
+        mGroup.add_buffer(new MediaBuffer(mSize));
+    }
+
+    virtual sp<MetaData> getFormat() {
+        sp<MetaData> meta = new MetaData;
+        meta->setInt32(kKeyWidth, mWidth);
+        meta->setInt32(kKeyHeight, mHeight);
+        meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
+
+        return meta;
+    }
+
+    virtual status_t start(MetaData *params) {
+        mNumFramesOutput = 0;
+        return OK;
+    }
+
+    virtual status_t stop() {
+        return OK;
+    }
+
+    virtual status_t read(
+            MediaBuffer **buffer, const MediaSource::ReadOptions *options) {
+        if (mNumFramesOutput == kFramerate * 100) {
+            // Stop returning data after 10 secs.
+            return ERROR_END_OF_STREAM;
+        }
+
+        // printf("VideoSource::read\n");
+        status_t err = mGroup.acquire_buffer(buffer);
+        if (err != OK) {
+            return err;
+        }
+
+        char x = (char)((double)rand() / RAND_MAX * 255);
+        memset((*buffer)->data(), x, mSize);
+        (*buffer)->set_range(0, mSize);
+        (*buffer)->meta_data()->clear();
+        (*buffer)->meta_data()->setInt64(
+                kKeyTime, (mNumFramesOutput * 1000000) / kFramerate);
+        ++mNumFramesOutput;
+
+        // printf("VideoSource::read - returning buffer\n");
+        // LOG(INFO)("VideoSource::read - returning buffer");
+        return OK;
+    }
+
+protected:
+    virtual ~VideoSource() {}
+
+private:
+    MediaBufferGroup mGroup;
+    int mWidth, mHeight;
+    size_t mSize;
+    int64_t mNumFramesOutput;;
+
+    VideoSource(const VideoSource &);
+    VideoSource &operator=(const VideoSource &);
+};
+
+}  // namespace android
+
+#endif  // VIDEO_SOURCE_H_