Re: Lumix G-Series (especially G9)

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Hi,

So it spends 2x3 seconds waiting for capturecomplete.

I now synthesize a capture complete event in git, patch attached.

You can also try

	gphoto2 --trigger-capture --wait-event-and-download-files=FILEADDED

Ciao, Marcus
On Sun, Apr 23, 2023 at 08:45:38PM +0200, Alexander Holzinger wrote:
> Hi again, has anybody an idea why it's taking gphoto2 about 13 seconds to
> do the capture-image-and-download process with a lumix g9?
> Has anybody ever experienced such long durations for capturing and
> downloading an image with another camera?
> 
> With the same setup but a canon eos d7 it only takes about 2 seconds.
> 
> Best wishes
> Alex
> 
> 
> Am Di., 18. Apr. 2023 um 21:18 Uhr schrieb Alexander Holzinger <
> [email protected]>:
> 
> > The original email below didn't make it to the list because of the
> > attachment – it was too big.
> > I uploaded the log file to google drive.
> >
> > https://drive.google.com/file/d/1keNkvvp57z5b5-0uPRESUL5ArPnWqbmG/view?usp=share_link
> >
> > ---------- Forwarded message ---------
> > Date: Di., 18. Apr. 2023 um 21:11 Uhr
> > Subject: Re: [Gphoto-user] Lumix G-Series (especially G9)
> > To: Marcus Meissner <[email protected]>
> > Cc: <[email protected]>
> >
> >
> > Hi Marcus and all,
> > I now have a G9 and tested it with gphoto2.
> > Autodetect recognizes the G9 as a GH5.
> >
> > --capture-image-and-download works but the process takes about 13 seconds.
> > With the 7D it only takes about 3 or 4 seconds.
> > Do you have any idea if the process could be sped up?
> >
> > Actually the captured image gets written on the pi after about 6 seconds.
> > But then the process takes another 6 to 7 seconds to delete the file on the
> > camera or do something else. When I add --keep to the command it is the
> > same. About 6 seconds to get the image on the raspberry and another 6 to 7
> > seconds doing something else.
> >
> > I attach the logfile for coming from *env LANG=C gphoto2 --debug
> > --debug-logfile=my-logfile.txt --capture-image-and-download*
> >
> > It would be really cool if the time could be minimized somehow.
> >
> > Best wishes to all
> > Alex
> >
> >
> > Am Do., 22. Dez. 2022 um 17:46 Uhr schrieb Alexander Holzinger <
> > [email protected]>:
> >
> >> Thank you Marcus,
> >>
> >> if I get a G9 I will write about my findings.
> >> I tested a GH6 via USB. It gets detected and can take a photo but the
> >> process freezes and is not downloading the picture.
> >>
> >> ciao, Alex
> >>
> >> Am Mi., 21. Dez. 2022 um 15:17 Uhr schrieb Marcus Meissner <
> >> [email protected]>:
> >>
> >>> On Wed, Dec 21, 2022 at 12:00:39PM +0100, Alexander Holzinger wrote:
> >>> > Hi everybody,
> >>> >
> >>> >
> >>> > I am quite new to gphoto – first impression: it's quite awesome!
> >>> >
> >>> > Testing it out with a Canon 7D everything worked perfectly.
> >>> > But I am planning on buying a Lumix G9.
> >>> > Unfortunately the Lumix G-Series is labeled as 'experimental' and I
> >>> > couldn't find much information on it.
> >>> >
> >>> > Has anyone some experience with gphoto2 and the Lumix G9?
> >>> > Does 'gphoto capture-image-and-download' work?
> >>>
> >>> The Lumix I used for development did not do capture over USB, but only
> >>> over WLAN.
> >>>
> >>> I sadly do not remember if capture over USB works, I did add the code
> >>> though.
> >>> I think preview at least worked.
> >>>
> >>> I dont have the camera available here though.
> >>>
> >>> ciao, Marcus
> >>>
> >>


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	filename="0001-synthesize-a-capturecomplete-event-for-panasonic-cam.patch"

From 893122bf80c57ccaff77a9641a330f44d2e5b86a Mon Sep 17 00:00:00 2001
From: Marcus Meissner <[email protected]>
Date: Mon, 24 Apr 2023 11:03:11 +0200
Subject: [PATCH] synthesize a capturecomplete event for panasonic cameras, as
 they dont send on on their own

---
 camlibs/ptp2/library.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/camlibs/ptp2/library.c b/camlibs/ptp2/library.c
index 1db4ee04a..fd5c7f1a4 100644
--- a/camlibs/ptp2/library.c
+++ b/camlibs/ptp2/library.c
@@ -5458,6 +5458,11 @@ downloadfile:
 	path->name[0]='\0';
 	path->folder[0]='\0';
 
+	/* Synthesize a capture complete event to avoid waits. */
+	event.Code = PTP_EC_CaptureComplete;
+	event.Nparam = 0;
+	ptp_add_event (params, &event);
+
 	if (newobject != 0) /* NOTE: association add handled */
 		return add_object_to_fs_and_path (camera, newobject, path, context);
 	return GP_ERROR;
-- 
2.40.0


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	filename="0001-allow-trigger-capture-for-panasonic.patch"

From 0d2b455ced25d56db734e6d180d56545be2def38 Mon Sep 17 00:00:00 2001
From: Marcus Meissner <[email protected]>
Date: Mon, 24 Apr 2023 11:06:58 +0200
Subject: [PATCH] allow trigger capture for panasonic

---
 camlibs/ptp2/library.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/camlibs/ptp2/library.c b/camlibs/ptp2/library.c
index fd5c7f1a4..85806f41a 100644
--- a/camlibs/ptp2/library.c
+++ b/camlibs/ptp2/library.c
@@ -3021,6 +3021,11 @@ camera_abilities (CameraAbilitiesList *list)
 				(strstr(models[i].model,"EOS") || strstr(models[i].model,"Rebel"))
 			)
 				a.operations |= GP_OPERATION_TRIGGER_CAPTURE;
+
+			/* Enable for Panasonic */
+			if (models[i].usb_vendor == 0x04da)
+				a.operations |= GP_OPERATION_TRIGGER_CAPTURE;
+
 			/* Sony Alpha are also trigger capture capable */
 			if (	models[i].usb_vendor == 0x54c)
 				a.operations |= GP_OPERATION_TRIGGER_CAPTURE;
-- 
2.40.0


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