IOMX: Add prepareForAdaptivePlayback method

prepareForAdaptivePlayback is the fallback mechanism to support
seamless resolution change for devices that do not support dynamic
output buffers.  It is up to the codecs to handle this appropriately,
but codecs that do not handle dynamic output buffers would
request enough buffers up to the requested size in this method
to avoid port reconfiguration on resolution changes.

Change-Id: I58d4aa8ef1359ea3472735bbe9140c3132039b3d
Signed-off-by: Lajos Molnar <lajos@google.com>
Bug: 10192531
Related-to-bug: 7093648

1 files changed, 11 insertions, 0 deletions

diff --git a/media/libstagefright/OMXClient.cpp b/media/libstagefright/OMXClient.cpp
index 9820ef5..9f9352d 100644
--- a/media/libstagefright/OMXClient.cpp
+++ b/media/libstagefright/OMXClient.cpp
@@ -69,6 +69,10 @@ struct MuxOMX : public IOMX {
     virtual status_t storeMetaDataInBuffers(
             node_id node, OMX_U32 port_index, OMX_BOOL enable);
 
+    virtual status_t prepareForAdaptivePlayback(
+            node_id node, OMX_U32 port_index, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight);
+
     virtual status_t enableGraphicBuffers(
             node_id node, OMX_U32 port_index, OMX_BOOL enable);
 
@@ -268,6 +272,13 @@ status_t MuxOMX::storeMetaDataInBuffers(
     return getOMX(node)->storeMetaDataInBuffers(node, port_index, enable);
 }
 
+status_t MuxOMX::prepareForAdaptivePlayback(
+        node_id node, OMX_U32 port_index, OMX_BOOL enable,
+        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+    return getOMX(node)->prepareForAdaptivePlayback(
+            node, port_index, enable, maxFrameWidth, maxFrameHeight);
+}
+
 status_t MuxOMX::enableGraphicBuffers(
         node_id node, OMX_U32 port_index, OMX_BOOL enable) {
     return getOMX(node)->enableGraphicBuffers(node, port_index, enable);