From 0f056290cb16763453f18bbef80cde673041dbbc Mon Sep 17 00:00:00 2001
From: James Dong <jdong@google.com>
Date: Mon, 9 May 2011 18:49:31 -0700
Subject: Add support for platform-specific recording start time offset

o This start time offset is used in the media framework to eliminate
  the recording sound in the recorded file.

Change-Id: I97926a74f0743b8a4f985d51334e8d1486a318ea
related-to-bug: 4390777
---
 media/libmedia/MediaProfiles.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'media/libmedia/MediaProfiles.cpp')

diff --git a/media/libmedia/MediaProfiles.cpp b/media/libmedia/MediaProfiles.cpp
index e6f3a33..069bbb7 100644
--- a/media/libmedia/MediaProfiles.cpp
+++ b/media/libmedia/MediaProfiles.cpp
@@ -356,6 +356,18 @@ MediaProfiles::getCameraId(const char** atts)
     return atoi(atts[1]);
 }
 
+void MediaProfiles::addStartTimeOffset(int cameraId, const char** atts)
+{
+    int offsetTimeMs = 700;
+    if (atts[2]) {
+        CHECK(!strcmp("startOffsetMs", atts[2]));
+        offsetTimeMs = atoi(atts[3]);
+    }
+
+    LOGV("%s: cameraId=%d, offset=%d ms", __func__, cameraId, offsetTimeMs);
+    mStartTimeOffsets.replaceValueFor(cameraId, offsetTimeMs);
+}
+
 /*static*/ void
 MediaProfiles::startElementHandler(void *userData, const char *name, const char **atts)
 {
@@ -380,6 +392,7 @@ MediaProfiles::startElementHandler(void *userData, const char *name, const char
         profiles->mEncoderOutputFileFormats.add(createEncoderOutputFileFormat(atts));
     } else if (strcmp("CamcorderProfiles", name) == 0) {
         profiles->mCurrentCameraId = getCameraId(atts);
+        profiles->addStartTimeOffset(profiles->mCurrentCameraId, atts);
     } else if (strcmp("EncoderProfile", name) == 0) {
         profiles->mCamcorderProfiles.add(
             createCamcorderProfile(profiles->mCurrentCameraId, atts, profiles->mCameraIds));
@@ -997,6 +1010,16 @@ Vector<int> MediaProfiles::getImageEncodingQualityLevels(int cameraId) const
     return result;
 }
 
+int MediaProfiles::getStartTimeOffsetMs(int cameraId) const {
+    int offsetTimeMs = -1;
+    ssize_t index = mStartTimeOffsets.indexOfKey(cameraId);
+    if (index >= 0) {
+        offsetTimeMs = mStartTimeOffsets.valueFor(cameraId);
+    }
+    LOGV("%s: offsetTime=%d ms and cameraId=%d", offsetTimeMs, cameraId);
+    return offsetTimeMs;
+}
+
 MediaProfiles::~MediaProfiles()
 {
     CHECK("destructor should never be called" == 0);
-- 
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