From 108dda7a90bd0f0337358b0db47ae55acd16dea6 Mon Sep 17 00:00:00 2001
From: Yoann Lopes <yoann.lopes@theqtcompany.com>
Date: Thu, 20 Nov 2014 17:54:18 +0100
Subject: GStreamer: port to 1.0.

0.10 is still used by default.
To enable GStreamer 1.0, pass GST_VERSION=1.0 to qmake
for qtmultimedia.pro.

Contributions from:
Andrew den Exter <andrew.den.exter@qinetic.com.au>
Ilya Smelykh <ilya@videoexpertsgroup.com>
Jim Hodapp <jim.hodapp@canonical.com>
Sergio Schvezov <sergio.schvezov@canonical.com>

Change-Id: I72a46d1170a8794a149bdb5e20767afcc5b7587c
Reviewed-by: Andrew den Exter <andrew.den.exter@qinetic.com.au>
---
 src/gsttools/qgstvideobuffer.cpp | 70 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 67 insertions(+), 3 deletions(-)

(limited to 'src/gsttools/qgstvideobuffer.cpp')

diff --git a/src/gsttools/qgstvideobuffer.cpp b/src/gsttools/qgstvideobuffer.cpp
index 18702ec76..1ce07ca12 100644
--- a/src/gsttools/qgstvideobuffer.cpp
+++ b/src/gsttools/qgstvideobuffer.cpp
@@ -35,21 +35,35 @@
 
 QT_BEGIN_NAMESPACE
 
+#if GST_CHECK_VERSION(1,0,0)
+QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, const GstVideoInfo &info)
+    : QAbstractPlanarVideoBuffer(NoHandle)
+    , m_videoInfo(info)
+#else
 QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine)
     : QAbstractVideoBuffer(NoHandle)
-    , m_buffer(buffer)
     , m_bytesPerLine(bytesPerLine)
+#endif
+    , m_buffer(buffer)
     , m_mode(NotMapped)
 {
     gst_buffer_ref(m_buffer);
 }
 
+#if GST_CHECK_VERSION(1,0,0)
+QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, const GstVideoInfo &info,
+                QGstVideoBuffer::HandleType handleType,
+                const QVariant &handle)
+    : QAbstractPlanarVideoBuffer(handleType)
+    , m_videoInfo(info)
+#else
 QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine,
                 QGstVideoBuffer::HandleType handleType,
                 const QVariant &handle)
     : QAbstractVideoBuffer(handleType)
-    , m_buffer(buffer)
     , m_bytesPerLine(bytesPerLine)
+#endif
+    , m_buffer(buffer)
     , m_mode(NotMapped)
     , m_handle(handle)
 {
@@ -58,6 +72,8 @@ QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine,
 
 QGstVideoBuffer::~QGstVideoBuffer()
 {
+    unmap();
+
     gst_buffer_unref(m_buffer);
 }
 
@@ -67,12 +83,49 @@ QAbstractVideoBuffer::MapMode QGstVideoBuffer::mapMode() const
     return m_mode;
 }
 
+#if GST_CHECK_VERSION(1,0,0)
+
+int QGstVideoBuffer::map(MapMode mode, int *numBytes, int bytesPerLine[4], uchar *data[4])
+{
+    const GstMapFlags flags = GstMapFlags(((mode & ReadOnly) ? GST_MAP_READ : 0)
+                | ((mode & WriteOnly) ? GST_MAP_WRITE : 0));
+
+    if (mode == NotMapped || m_mode != NotMapped) {
+        return 0;
+    } else if (m_videoInfo.finfo->n_planes == 0) {         // Encoded
+        if (gst_buffer_map(m_buffer, &m_frame.map[0], flags)) {
+            if (numBytes)
+                *numBytes = m_frame.map[0].size;
+            bytesPerLine[0] = -1;
+            data[0] = static_cast<uchar *>(m_frame.map[0].data);
+
+            m_mode = mode;
+
+            return 1;
+        }
+    } else if (gst_video_frame_map(&m_frame, &m_videoInfo, m_buffer, flags)) {
+        if (numBytes)
+            *numBytes = m_frame.info.size;
+
+        for (guint i = 0; i < m_frame.info.finfo->n_planes; ++i) {
+            bytesPerLine[i] = m_frame.info.stride[i];
+            data[i] = static_cast<uchar *>(m_frame.data[i]);
+        }
+
+        m_mode = mode;
+
+        return m_frame.info.finfo->n_planes;
+    }
+    return 0;
+}
+
+#else
+
 uchar *QGstVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
 {
     if (mode != NotMapped && m_mode == NotMapped) {
         if (numBytes)
             *numBytes = m_buffer->size;
-
         if (bytesPerLine)
             *bytesPerLine = m_bytesPerLine;
 
@@ -83,8 +136,19 @@ uchar *QGstVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
         return 0;
     }
 }
+
+#endif
+
 void QGstVideoBuffer::unmap()
 {
+#if GST_CHECK_VERSION(1,0,0)
+    if (m_mode != NotMapped) {
+        if (m_videoInfo.finfo->n_planes == 0)
+            gst_buffer_unmap(m_buffer, &m_frame.map[0]);
+        else
+            gst_video_frame_unmap(&m_frame);
+    }
+#endif
     m_mode = NotMapped;
 }
 
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