From 336da16a12423c496efba6ca9813d5d42a1f70f6 Mon Sep 17 00:00:00 2001
From: Andreas Huber <andih@google.com>
Date: Fri, 19 Jul 2013 11:00:43 -0700
Subject: Enable support for explicitly requesting an encoded keyframe from the
 vp8

encoder.

Change-Id: I370d5831f7d6037faf361a92521390f19f179cbe
---
 .../codecs/on2/enc/SoftVPXEncoder.cpp              | 33 ++++++++++++++++++++--
 .../libstagefright/codecs/on2/enc/SoftVPXEncoder.h |  5 ++++
 2 files changed, 36 insertions(+), 2 deletions(-)

(limited to 'media/libstagefright/codecs')

diff --git a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
index d8456fe..5f2b5c8 100644
--- a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
+++ b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
@@ -149,7 +149,8 @@ SoftVPXEncoder::SoftVPXEncoder(const char *name,
       mLevel(OMX_VIDEO_VP8Level_Version0),
       mConversionBuffer(NULL),
       mInputDataIsMeta(false),
-      mGrallocModule(NULL) {
+      mGrallocModule(NULL),
+      mKeyFrameRequested(false) {
     initPorts();
 }
 
@@ -519,6 +520,27 @@ OMX_ERRORTYPE SoftVPXEncoder::internalSetParameter(OMX_INDEXTYPE index,
     }
 }
 
+OMX_ERRORTYPE SoftVPXEncoder::setConfig(
+        OMX_INDEXTYPE index, const OMX_PTR _params) {
+    switch (index) {
+        case OMX_IndexConfigVideoIntraVOPRefresh:
+        {
+            OMX_CONFIG_INTRAREFRESHVOPTYPE *params =
+                (OMX_CONFIG_INTRAREFRESHVOPTYPE *)_params;
+
+            if (params->nPortIndex != kOutputPortIndex) {
+                return OMX_ErrorBadPortIndex;
+            }
+
+            mKeyFrameRequested = params->IntraRefreshVOP;
+            return OMX_ErrorNone;
+        }
+
+        default:
+            return SimpleSoftOMXComponent::setConfig(index, _params);
+    }
+}
+
 OMX_ERRORTYPE SoftVPXEncoder::internalSetProfileLevel(
         const OMX_VIDEO_PARAM_PROFILELEVELTYPE* profileAndLevel) {
     if (profileAndLevel->nPortIndex != kOutputPortIndex) {
@@ -750,12 +772,19 @@ void SoftVPXEncoder::onQueueFilled(OMX_U32 portIndex) {
         vpx_image_t raw_frame;
         vpx_img_wrap(&raw_frame, VPX_IMG_FMT_I420, mWidth, mHeight,
                      kInputBufferAlignment, source);
+
+        vpx_enc_frame_flags_t flags = 0;
+        if (mKeyFrameRequested) {
+            flags |= VPX_EFLAG_FORCE_KF;
+            mKeyFrameRequested = false;
+        }
+
         codec_return = vpx_codec_encode(
                 mCodecContext,
                 &raw_frame,
                 inputBufferHeader->nTimeStamp,  // in timebase units
                 mFrameDurationUs,  // frame duration in timebase units
-                0,  // frame flags
+                flags,  // frame flags
                 VPX_DL_REALTIME);  // encoding deadline
         if (codec_return != VPX_CODEC_OK) {
             ALOGE("vpx encoder failed to encode frame");
diff --git a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
index d570154..4ee5e51 100644
--- a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
+++ b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
@@ -78,6 +78,9 @@ protected:
     virtual OMX_ERRORTYPE internalSetParameter(
             OMX_INDEXTYPE index, const OMX_PTR param);
 
+    virtual OMX_ERRORTYPE setConfig(
+            OMX_INDEXTYPE index, const OMX_PTR params);
+
     // OMX callback when buffers available
     // Note that both an input and output buffer
     // is expected to be available to carry out
@@ -163,6 +166,8 @@ private:
     bool mInputDataIsMeta;
     const hw_module_t *mGrallocModule;
 
+    bool mKeyFrameRequested;
+
     // Initializes input and output OMX ports with sensible
     // default values.
     void initPorts();
-- 
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