From: Bård Eirik Winther <bwinther@xxxxxxxxx>
Add new hotkeys Shift+Left and Shift+Right to decrase or increase stride.
Signed-off-by: Bård Eirik Winther <bwinther@xxxxxxxxx>
---
utils/qvidcap/capture.cpp | 38 ++++++++++++++++++++++++++++++++++----
utils/qvidcap/capture.h | 2 ++
utils/qvidcap/qvidcap.cpp | 6 ++++++
3 files changed, 42 insertions(+), 4 deletions(-)
diff --git a/utils/qvidcap/capture.cpp b/utils/qvidcap/capture.cpp
index a76dd2b6..e2903fb5 100644
--- a/utils/qvidcap/capture.cpp
+++ b/utils/qvidcap/capture.cpp
@@ -571,6 +571,7 @@ void CaptureWin::keyPressEvent(QKeyEvent *event)
{
unsigned w = m_v4l_fmt.g_width();
unsigned h = m_v4l_fmt.g_frame_height();
+ unsigned p = m_overrideHorPadding;
bool hasShift = event->modifiers() & Qt::ShiftModifier;
bool hasCtrl = event->modifiers() & Qt::ControlModifier;
bool scalingEnabled = m_canOverrideResolution &&
@@ -587,12 +588,22 @@ void CaptureWin::keyPressEvent(QKeyEvent *event)
if (!m_scrollArea->isFullScreen())
return;
case Qt::Key_Left:
- if (scalingEnabled && w > 16)
- w -= 2;
+ if (hasShift) {
+ if (scalingEnabled && p >= 2)
+ p -= 2;
+ } else {
+ if (scalingEnabled && w > 16)
+ w -= 2;
+ }
break;
case Qt::Key_Right:
- if (scalingEnabled && w < 10240)
- w += 2;
+ if (hasShift) {
+ if (scalingEnabled && p < 10240)
+ p += 2;
+ } else {
+ if (scalingEnabled && w < 10240)
+ w += 2;
+ }
break;
case Qt::Key_Up:
if (scalingEnabled && h > 16)
@@ -675,6 +686,12 @@ void CaptureWin::keyPressEvent(QKeyEvent *event)
m_scrollArea->resize(w, h);
else
resize(w, h);
+
+ if (p != m_v4l_fmt.g_bytesperline()) {
+ printf("New horizontal resolution: %u + %u (%u)\n", w, p, w + p);
+ setOverrideHorPadding(p);
+ updateShader();
+ }
}
}
@@ -747,6 +764,14 @@ void CaptureWin::setOverrideHeight(__u32 h)
m_resolutionOverride->setChecked(true);
}
+void CaptureWin::setOverrideHorPadding(__u32 p)
+{
+ m_overrideHorPadding = p;
+
+ if (!m_overrideHorPadding && m_canOverrideResolution)
+ m_resolutionOverride->setChecked(true);
+}
+
void CaptureWin::setModeV4L2(cv4l_fd *fd)
{
m_mode = AppModeV4L2;
@@ -953,6 +978,8 @@ bool CaptureWin::setV4LFormat(cv4l_fmt &fmt)
}
if (m_mode == AppModeFile && m_overrideWidth)
fmt.s_width(m_overrideWidth);
+ if (m_mode == AppModeFile && m_overrideHorPadding)
+ fmt.s_bytesperline(fmt.g_bytesperline() + m_overrideHorPadding);
if (m_mode == AppModeFile && m_overrideField != 0xffffffff)
fmt.s_field(m_overrideField);
if (m_mode == AppModeFile && m_overrideHeight)
@@ -1350,6 +1377,9 @@ void CaptureWin::initImageFormat()
tpg_s_quantization(&m_tpg, m_v4l_fmt.g_quantization());
m_v4l_fmt.s_num_planes(tpg_g_buffers(&m_tpg));
for (unsigned p = 0; p < m_v4l_fmt.g_num_planes(); p++) {
+ if (m_mode == AppModeFile && m_overrideHorPadding)
+ tpg_s_bytesperline(&m_tpg, p, tpg_g_bytesperline(&m_tpg, p) + m_overrideHorPadding);
+
m_v4l_fmt.s_bytesperline(tpg_g_bytesperline(&m_tpg, p), p);
m_v4l_fmt.s_sizeimage(tpg_calc_plane_size(&m_tpg, p), p);
}
diff --git a/utils/qvidcap/capture.h b/utils/qvidcap/capture.h
index 19e845a8..a6debb47 100644
--- a/utils/qvidcap/capture.h
+++ b/utils/qvidcap/capture.h
@@ -82,6 +82,7 @@ public:
bool updateV4LFormat(const cv4l_fmt &fmt);
void setOverrideWidth(__u32 w);
void setOverrideHeight(__u32 h);
+ void setOverrideHorPadding(__u32 p);
void setCount(unsigned cnt) { m_cnt = cnt; }
void setReportTimings(bool report) { m_reportTimings = report; }
void setVerbose(bool verbose) { m_verbose = verbose; }
@@ -192,6 +193,7 @@ private:
__u32 m_overridePixelFormat;
__u32 m_overrideWidth;
__u32 m_overrideHeight;
+ __u32 m_overrideHorPadding;
__u32 m_overrideField;
__u32 m_overrideColorspace;
__u32 m_overrideYCbCrEnc;
diff --git a/utils/qvidcap/qvidcap.cpp b/utils/qvidcap/qvidcap.cpp
index a8a5905d..5c1356c1 100644
--- a/utils/qvidcap/qvidcap.cpp
+++ b/utils/qvidcap/qvidcap.cpp
@@ -72,6 +72,7 @@ static void usage()
"\n"
" -W, --width=<width> set width\n"
" -H, --height=<height> set frame (not field!) height\n"
+ " -A, --padding=<bytes> set additional horizontal padding (after width)\n"
" --fps=<fps> set frames-per-second (default is 30)\n"
"\n"
" The following option is only valid when reading from a file:\n"
@@ -446,6 +447,7 @@ int main(int argc, char **argv)
__u32 overridePixelFormat = 0;
__u32 overrideWidth = 0;
__u32 overrideHeight = 0;
+ __u32 overrideHorPadding = 0;
__u32 overrideField = 0xffffffff;
__u32 overrideColorspace = 0xffffffff;
__u32 overrideYCbCrEnc = 0xffffffff;
@@ -516,6 +518,9 @@ int main(int argc, char **argv)
} else if (isOptArg(args[i], "--height", "-H")) {
if (!processOption(args, i, overrideHeight))
return 0;
+ } else if (isOptArg(args[i], "--padding", "-A")) {
+ if (!processOption(args, i, overrideHorPadding))
+ return 0;
} else if (isOptArg(args[i], "--field", "-F")) {
if (!processOption(args, i, s))
return 0;
@@ -749,6 +754,7 @@ int main(int argc, char **argv)
}
win.setOverrideWidth(overrideWidth);
win.setOverrideHeight(overrideHeight);
+ win.setOverrideHorPadding(overrideHorPadding);
win.setFps(fps);
win.setFormat(format);
win.setReportTimings(report_timings);
--
2.20.1
