[chronojump] webcam get supported modes for mac (done!)
- From: Xavier de Blas <xaviblas src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [chronojump] webcam get supported modes for mac (done!)
- Date: Mon, 20 May 2019 14:01:53 +0000 (UTC)
commit 50aa563cf0037da255e407d56d1ce8cd3bc12258
Author: Xavier de Blas <xaviblas gmail com>
Date: Mon May 20 15:46:02 2019 +0200
webcam get supported modes for mac (done!)
glade/preferences_win.glade | 27 +++++++++--
src/gui/preferences.cs | 18 +++++++
src/webcam.cs | 1 +
src/webcamFfmpeg.cs | 114 ++++++++++++++++++++++++++++++++++++++++++++
src/webcamMplayer.cs | 5 ++
5 files changed, 162 insertions(+), 3 deletions(-)
---
diff --git a/glade/preferences_win.glade b/glade/preferences_win.glade
index 5e8f9fe6..e80810e6 100644
--- a/glade/preferences_win.glade
+++ b/glade/preferences_win.glade
@@ -3774,6 +3774,27 @@ Other</property>
<widget class="GtkVBox" id="vbox30">
<property name="visible">True</property>
<property name="can_focus">False</property>
+ <property name="spacing">12</property>
+ <child>
+ <widget class="GtkButton" id="button_video_get_supported_modes">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <signal name="clicked"
handler="on_button_video_get_supported_modes_clicked" swapped="no"/>
+ <child>
+ <widget class="GtkLabel" id="label86">
+ <property name="visible">True</property>
+ <property name="can_focus">False</property>
+ <property name="label" translatable="yes">Get supported
modes</property>
+ </widget>
+ </child>
+ </widget>
+ <packing>
+ <property name="expand">True</property>
+ <property name="fill">True</property>
+ <property name="position">0</property>
+ </packing>
+ </child>
<child>
<widget class="GtkButton" id="button_video_preview">
<property name="visible">True</property>
@@ -3793,8 +3814,8 @@ Other</property>
<property name="stock">gtk-missing-image</property>
</widget>
<packing>
- <property name="expand">True</property>
- <property name="fill">True</property>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
<property name="position">0</property>
</packing>
</child>
@@ -3816,7 +3837,7 @@ Other</property>
<packing>
<property name="expand">True</property>
<property name="fill">False</property>
- <property name="position">0</property>
+ <property name="position">1</property>
</packing>
</child>
</widget>
diff --git a/src/gui/preferences.cs b/src/gui/preferences.cs
index 40a62b43..968d6e65 100644
--- a/src/gui/preferences.cs
+++ b/src/gui/preferences.cs
@@ -784,6 +784,24 @@ public class PreferencesWindow
Util.TestSound = false;
}
+ //for mac and maybe windows, because in Linux it founds a default mode and it works
+ private void on_button_video_get_supported_modes_clicked (object o, EventArgs args)
+ {
+ string cameraCode = wd_list.GetCodeOfFullname(UtilGtk.ComboGetActive(combo_camera));
+ if(cameraCode == "")
+ return;
+
+ Webcam webcamPlay = new WebcamFfmpeg (Webcam.Action.PLAYPREVIEW, UtilAll.GetOSEnum(),
+ cameraCode, "8000x8000", "8000"); //select and impossible mode just to get an
error on mac, this error will give us the "Supported modes"
+
+ Webcam.Result result = webcamPlay.PlayPreviewNoBackgroundWantStdoutAndStderr();
+
+ //display the result (if any)
+ if(result.output != "")
+ new DialogMessage("Chronojump - Modes of this webcam",
+ Constants.MessageTypes.INFO, result.output);
+ }
+
private void on_button_video_preview_clicked (object o, EventArgs args)
{
string cameraCode = wd_list.GetCodeOfFullname(UtilGtk.ComboGetActive(combo_camera));
diff --git a/src/webcam.cs b/src/webcam.cs
index de0f57bb..ba95a9f5 100644
--- a/src/webcam.cs
+++ b/src/webcam.cs
@@ -145,6 +145,7 @@ public abstract class Webcam
public abstract Result PlayPreview();
public abstract Result PlayPreviewNoBackground();
+ public abstract Result PlayPreviewNoBackgroundWantStdoutAndStderr();
public abstract Result PlayFile(string filename);
diff --git a/src/webcamFfmpeg.cs b/src/webcamFfmpeg.cs
index d633ff03..3a0d778d 100644
--- a/src/webcamFfmpeg.cs
+++ b/src/webcamFfmpeg.cs
@@ -104,6 +104,26 @@ public class WebcamFfmpeg : Webcam
return new Result (true, "");
}
+ //used to know "Supported modes" on mac and maybe on windows
+ public override Result PlayPreviewNoBackgroundWantStdoutAndStderr() //experimental
+ {
+ List<string> parameters = createParametersPlayPreview();
+
+ process = new Process();
+ ExecuteProcess.Result execute_result = ExecuteProcess.run (executable, parameters, true,
true);
+ //LogB.Information("Stdout: ", execute_result.stdout);
+ //LogB.Information("Stderr: ", execute_result.stderr);
+ LogB.Information("allOutput: ", execute_result.allOutput);
+
+ string parsed = parseSupportedModes(execute_result.allOutput);
+
+ if(! execute_result.success)
+ {
+ return new Result (false, parsed);
+ }
+
+ return new Result (true, parsed);
+ }
//snapshot in 2 seconds
public override bool Snapshot ()
@@ -439,6 +459,100 @@ public class WebcamFfmpeg : Webcam
Running = false;
}
+ private string parseSupportedModes(string allOutput)
+ {
+ string str = "";
+
+ /*
+ * break the big string in \n strings
+ * https://stackoverflow.com/a/1547483
+ */
+ string[] lines = allOutput.Split(
+ new[] { Environment.NewLine },
+ StringSplitOptions.None
+ );
+
+ bool started = false;
+ foreach(string l in lines)
+ {
+ LogB.Information("line: " + l);
+
+ //devices start after the videoDevString line
+ if(! started)
+ {
+ if(l.Contains("Supported modes"))
+ started = true;
+
+ continue;
+ }
+
+ str = parseSupportedMode(l) + "\nstdout";
+
+ //after the list of video devices comes the list of audio devices, skip it
+ if(l.Contains("Input/output"))
+ break;
+ }
+ return str;
+ }
+ private string parseSupportedMode(string l) //TODO: currently only for mac
+ {
+ if(! l.Contains("avfoundation"))
+ return "";
+
+ //parse this:
+ // [avfoundation @ 0x7f849a8be800] 1280x720@[23.999981 23.999981]fps
+ //use: https://regex101.com/r/lZ5mN8/50
+ // (\d+)x(\d+)@\[(\d+).(\d+)\s+
+
+ Match match = Regex.Match(l, @"(\d+)x(\d+)@\[(\d+).(\d+)\s+");
+
+ LogB.Information("match group count: ", match.Groups.Count.ToString());
+ if(match.Groups.Count != 5) //first is all match, second is the first int (width), last one
is the decimals of the resolution
+ return "";
+
+ return string.Format("Resolution: {0}x{1}, Framerate: {2}.{3}",
+ match.Groups[1].Value, match.Groups[2].Value,
+ match.Groups[3].Value, match.Groups[4].Value);
+ }
+ /* test ParseSupportModes
+ *
+WebcamFfmpeg.parseSupportedModes(@"[avfoundation @ 0x7f849a8be800] Supported modes:
+[avfoundation @ 0x7f849a8be800] 160x120@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 160x120@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 160x120@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 160x120@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 176x144@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 176x144@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 176x144@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 176x144@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 320x240@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 320x240@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 320x240@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 320x240@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 352x288@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 352x288@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 352x288@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 352x288@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 640x480@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 640x480@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 640x480@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 640x480@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 960x540@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 960x540@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 960x540@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 960x540@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 1024x576@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 1024x576@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 1024x576@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 1024x576@[14.999993 14.999993]fps
+[avfoundation @ 0x7f849a8be800] 1280x720@[29.970000 29.970000]fps
+[avfoundation @ 0x7f849a8be800] 1280x720@[25.000000 25.000000]fps
+[avfoundation @ 0x7f849a8be800] 1280x720@[23.999981 23.999981]fps
+[avfoundation @ 0x7f849a8be800] 1280x720@[14.999993 14.999993]fps
+0: Input/output error");
+*/
+
+
/*
* protected methods
*/
diff --git a/src/webcamMplayer.cs b/src/webcamMplayer.cs
index 6046fe4a..5d271234 100644
--- a/src/webcamMplayer.cs
+++ b/src/webcamMplayer.cs
@@ -110,6 +110,11 @@ public class WebcamMplayer : Webcam
//not implemented
return new Result (false, "");
}
+ public override Result PlayPreviewNoBackgroundWantStdoutAndStderr() //experimental
+ {
+ //not implemented
+ return new Result (false, "");
+ }
public override Result PlayFile (string filename)
{
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