commit 3d40154e8a9a3ceba9f8bc78ec8be97721e06463
author Mihir Ganu <mganu@codeaurora.org> Wed Apr 03 11:08:06 2019 -0700
committer Mihir Ganu <mganu@codeaurora.org> Wed Apr 10 14:17:17 2019 -0700
tree f434f6e421fa88b33e8e721e6bd9f7ddf862a041
parent 0de87d7ecebb59a10de8fa35c6f9fef409a392bc

qdmetadata: Add support for video histogram stats

Change adds support for passing the video histogram stats from video decoder to
the clients.

CRs-Fixed: 2395126
Change-Id: If6b1e0eb51754c3635024a4b37dc9d8991073efb

libqdmetadata/qdMetaData.cpp

diff --git a/libqdmetadata/qdMetaData.cpp b/libqdmetadata/qdMetaData.cpp
index 33ce28b..91dbc7a 100644
--- a/libqdmetadata/qdMetaData.cpp
+++ b/libqdmetadata/qdMetaData.cpp
@@ -161,7 +161,26 @@
              }
              break;
         }
-        default:
+        case SET_VIDEO_HISTOGRAM_STATS: {
+            struct VideoHistogramMetadata *vidstats = (struct VideoHistogramMetadata *)param;
+            if (vidstats->stat_len <= VIDEO_HISTOGRAM_STATS_SIZE) {
+                memcpy(data->video_histogram_stats.stats_info,
+                    vidstats->stats_info, VIDEO_HISTOGRAM_STATS_SIZE);
+                data->video_histogram_stats.stat_len = vidstats->stat_len;
+                data->video_histogram_stats.frame_type = vidstats->frame_type;
+                data->video_histogram_stats.display_width = vidstats->display_width;
+                data->video_histogram_stats.display_height = vidstats->display_height;
+                data->video_histogram_stats.decode_width = vidstats->decode_width;
+                data->video_histogram_stats.decode_height = vidstats->decode_height;
+            } else {
+                 data->operation &= ~(paramType);
+                 ALOGE("%s: video stats length %u is more than max size %u",
+                     __func__, vidstats->stat_len, VIDEO_HISTOGRAM_STATS_SIZE);
+                 return -EINVAL;
+            }
+            break;
+         }
+         default:
             ALOGE("Unknown paramType %d", paramType);
             break;
     }
@@ -191,6 +210,9 @@
         case SET_CVP_METADATA:
             data->cvpMetadata.size = 0;
             break;
+        case SET_VIDEO_HISTOGRAM_STATS:
+            data->video_histogram_stats.stat_len = 0;
+            break;
         default:
             ALOGE("Unknown paramType %d", paramType);
             break;
@@ -323,6 +345,23 @@
                 }
             }
             break;
+        case GET_VIDEO_HISTOGRAM_STATS:
+            if (data->operation & SET_VIDEO_HISTOGRAM_STATS) {
+                struct VideoHistogramMetadata *vidstats = (struct VideoHistogramMetadata *)param;
+                vidstats->stat_len = 0;
+                if (data->video_histogram_stats.stat_len <= VIDEO_HISTOGRAM_STATS_SIZE) {
+                    memcpy(vidstats->stats_info,
+                        data->video_histogram_stats.stats_info, VIDEO_HISTOGRAM_STATS_SIZE);
+                    vidstats->stat_len = data->video_histogram_stats.stat_len;
+                    vidstats->frame_type = data->video_histogram_stats.frame_type;
+                    vidstats->display_width = data->video_histogram_stats.display_width;
+                    vidstats->display_height = data->video_histogram_stats.display_height;
+                    vidstats->decode_width = data->video_histogram_stats.decode_width;
+                    vidstats->decode_height = data->video_histogram_stats.decode_height;
+                    ret = 0;
+                }
+            }
+            break;
         default:
             ALOGE("Unknown paramType %d", paramType);
             break;