commit 1ef423ccd884679893b3622c86aae9792b345088
author Harish Mahendrakar <harish.mahendrakar@ittiam.com> Thu Apr 14 12:12:24 2016 +0530
committer Wonsik Kim <wonsik@google.com> Tue May 10 23:39:08 2016 +0900
tree 5e09ffe6b3d41db43b7164982fefc2de81384def
parent a34a5cca7791d80bdbfe0ef9659e1f991ad23e78

codecs: fix MPEG2 decoder resolution change

Bug: 28679582
Change-Id: Icd9d4af6552820e6d0ee1a2f7915258613a4901b
(cherry picked from commit 903bac1de1b0763c227464bac46bc5111eba9609)

media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp

diff --git a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
index 8283ab5..27f860e 100644
--- a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
+++ b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
@@ -74,7 +74,8 @@
       mIvColorFormat(IV_YUV_420P),
       mNewWidth(mWidth),
       mNewHeight(mHeight),
-      mChangingResolution(false) {
+      mChangingResolution(false),
+      mStride(mWidth) {
     initPorts(kNumBuffers, INPUT_BUF_SIZE, kNumBuffers, CODEC_MIME_TYPE);
 
     // If input dump is enabled, then open create an empty file
@@ -202,6 +203,8 @@
     /* Set number of cores/threads to be used by the codec */
     setNumCores();
 
+    mStride = 0;
+
     return OK;
 }
 
@@ -384,7 +387,8 @@
     resetPlugin();
 
     /* Set the run time (dynamic) parameters */
-    setParams(displayStride);
+    mStride = outputBufferWidth();
+    setParams(mStride);
 
     /* Set number of cores/threads to be used by the codec */
     setNumCores();
@@ -548,6 +552,12 @@
     List<BufferInfo *> &inQueue = getPortQueue(kInputPortIndex);
     List<BufferInfo *> &outQueue = getPortQueue(kOutputPortIndex);
 
+    if (outputBufferWidth() != mStride) {
+        /* Set the run-time (dynamic) parameters */
+        mStride = outputBufferWidth();
+        setParams(mStride);
+    }
+
     /* If input EOS is seen and decoder is not in flush mode,
      * set the decoder in flush mode.
      * There can be a case where EOS is sent along with last picture data
@@ -686,6 +696,8 @@
                 mChangingResolution = false;
                 resetDecoder();
                 resetPlugin();
+                mStride = outputBufferWidth();
+                setParams(mStride);
                 continue;
             }
 

media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h

diff --git a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h
index f48b70b..025e9a0 100644
--- a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h
+++ b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h
@@ -106,6 +106,7 @@
     bool mChangingResolution;
     bool mFlushNeeded;
     bool mWaitForI;
+    size_t mStride;
 
     status_t initDecoder();
     status_t deInitDecoder();