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| |
| #include "qgstvideobuffer_p.h" |
| |
| 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_bytesPerLine(bytesPerLine) |
| #endif |
| , m_buffer(buffer) |
| { |
| 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_bytesPerLine(bytesPerLine) |
| #endif |
| , m_buffer(buffer) |
| , m_handle(handle) |
| { |
| gst_buffer_ref(m_buffer); |
| } |
| |
| QGstVideoBuffer::~QGstVideoBuffer() |
| { |
| unmap(); |
| |
| gst_buffer_unref(m_buffer); |
| } |
| |
| |
| 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; |
| |
| m_mode = mode; |
| |
| return m_buffer->data; |
| } else { |
| 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; |
| } |
| |
| QT_END_NAMESPACE |