Fix incorrect stride information reported by some HW decoders.

webrtc/api/java/jni/androidmediadecoder_jni.cc

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 692 matching lines @@
     output_ntp_timestamps_ms = GetLongField(
         jni, j_decoder_output_buffer, j_ntp_timestamp_ms_field_);
 
     decode_time_ms = GetLongField(jni, j_decoder_output_buffer,
                                   j_byte_buffer_decode_time_ms_field_);
 
     if (output_buffer_size < width * height * 3 / 2) {
       ALOGE << "Insufficient output buffer size: " << output_buffer_size;
       return false;
     }
+    if (output_buffer_size < stride * height * 3 / 2 &&
+        slice_height == height && stride > width) {
+      // Some codecs (Exynos) incorrectly report stride information for
+      // output byte buffer, so actual stride value need to be corrected.
+      stride = output_buffer_size * 2 / (height * 3);
+    }
     jobjectArray output_buffers = reinterpret_cast<jobjectArray>(GetObjectField(
         jni, *j_media_codec_video_decoder_, j_output_buffers_field_));
     jobject output_buffer =
         jni->GetObjectArrayElement(output_buffers, output_buffer_index);
     uint8_t* payload = reinterpret_cast<uint8_t*>(jni->GetDirectBufferAddress(
         output_buffer));
     if (CheckException(jni)) {
       return false;
     }
     payload += output_buffer_offset;
@@ skipping 205 matching lines @@
   ALOGD << "Destroy video decoder.";
   delete decoder;
 }
 
 const char* MediaCodecVideoDecoder::ImplementationName() const {
   return "MediaCodec";
 }
 
 }  // namespace webrtc_jni