From abd1f4f870925d6776dbe4b930b759a1ab6595ca Mon Sep 17 00:00:00 2001
From: Andreas Huber <andih@google.com>
Date: Tue, 20 Jul 2010 15:04:28 -0700
Subject: Support finer seek control on MediaSources.

related-to-bug: 2858448

Change-Id: Ifb4b13b990fd5889113e47e2c62249ac43391fa1
---
 include/media/stagefright/MediaSource.h | 12 ++++++++++--
 include/media/stagefright/MetaData.h    |  1 +
 include/media/stagefright/OMXCodec.h    |  2 ++
 3 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/media/stagefright/MediaSource.h b/include/media/stagefright/MediaSource.h
index 9cc94c8..a31395e 100644
--- a/include/media/stagefright/MediaSource.h
+++ b/include/media/stagefright/MediaSource.h
@@ -62,14 +62,21 @@ struct MediaSource : public RefBase {
     // a) not request a seek
     // b) not be late, i.e. lateness_us = 0
     struct ReadOptions {
+        enum SeekMode {
+            SEEK_PREVIOUS_SYNC,
+            SEEK_NEXT_SYNC,
+            SEEK_CLOSEST_SYNC,
+            SEEK_CLOSEST,
+        };
+
         ReadOptions();
 
         // Reset everything back to defaults.
         void reset();
 
-        void setSeekTo(int64_t time_us);
+        void setSeekTo(int64_t time_us, SeekMode mode = SEEK_CLOSEST_SYNC);
         void clearSeekTo();
-        bool getSeekTo(int64_t *time_us) const;
+        bool getSeekTo(int64_t *time_us, SeekMode *mode) const;
 
         void setLateBy(int64_t lateness_us);
         int64_t getLateBy() const;
@@ -81,6 +88,7 @@ struct MediaSource : public RefBase {
 
         uint32_t mOptions;
         int64_t mSeekTimeUs;
+        SeekMode mSeekMode;
         int64_t mLatenessUs;
     };
 
diff --git a/include/media/stagefright/MetaData.h b/include/media/stagefright/MetaData.h
index cdbf483..e631c7f 100644
--- a/include/media/stagefright/MetaData.h
+++ b/include/media/stagefright/MetaData.h
@@ -46,6 +46,7 @@ enum {
     kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
     kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
     kKeyTime              = 'time',  // int64_t (usecs)
+    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
     kKeyDuration          = 'dura',  // int64_t (usecs)
     kKeyColorFormat       = 'colf',
     kKeyPlatformPrivate   = 'priv',  // pointer
diff --git a/include/media/stagefright/OMXCodec.h b/include/media/stagefright/OMXCodec.h
index 214f43a..79e7a2f 100644
--- a/include/media/stagefright/OMXCodec.h
+++ b/include/media/stagefright/OMXCodec.h
@@ -141,6 +141,8 @@ private:
     bool mNoMoreOutputData;
     bool mOutputPortSettingsHaveChanged;
     int64_t mSeekTimeUs;
+    ReadOptions::SeekMode mSeekMode;
+    int64_t mTargetTimeUs;
 
     MediaBuffer *mLeftOverBuffer;
 
-- 
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