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HVR 1300 Frederic CAND 3 participants 8 messages Jun 23, 2008 – Jun 25, 2008 Media (V4L/DVB)

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Frederic CAND

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#0 lore raw

dear all
I could not make secam b/g work on my hvr 1300
ioctl returns -1, error "Invalid argument"
I know my card is able to handle this tv norm since it's working fine (video and sound are ok) under windows
anyone could confirm it isn't working ? any idea why, and how to make it work ?

Signature · 8 lines
CAND Frederic
Product Manager
ANEVIA

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#1 lore raw

Hi Frederic,

Am Montag, den 23.06.2008, 15:31 +0200 schrieb Frederic CAND:

Quoted 7 lines

dear all
I could not make secam b/g work on my hvr 1300
ioctl returns -1, error "Invalid argument"
I know my card is able to handle this tv norm since it's working fine (video and sound are ok) under windows
anyone could confirm it isn't working ? any idea why, and how to make it work ?

since without reply, I don't claim to have seriously looked at it, but at least have one question myself.

In cx88-core is no define for SECAM B or G.

Do you use a signal generator?

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

Thanks,
Hermann

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#2 lore raw
Quoted 7 lines · hermann pitton

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

Not really up to date, but ITU-R report BT.2043 might answer this and similar questions:

http://www.itu.int/publ/R-REP-BT.2043-2004/en

Unfortunately reports are not covered by the "three for free" rule.

Daniel

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#3 lore raw

Am Dienstag, den 24.06.2008, 01:29 +0200 schrieb Daniel Glöckner:

Quoted 9 lines · hermann pitton
Quoted 7 lines

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

Quoted 8 lines

Not really up to date, but ITU-R report BT.2043 might answer this and similar questions:

http://www.itu.int/publ/R-REP-BT.2043-2004/en

Unfortunately reports are not covered by the "three for free" rule.

Daniel

Daniel,

I really estimate the quality of your contributions.

But for sure I will not further look this one up.

It is brain dead.

Cheers,

Quoted 1 line

<Hermann

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author
#4 lore raw
In reply to hermann pitton
Quoted 10 lines · hermann pitton

Hi Frederic,

Am Montag, den 23.06.2008, 15:31 +0200 schrieb Frederic CAND:

Quoted 6 lines

dear all
I could not make secam b/g work on my hvr 1300
ioctl returns -1, error "Invalid argument"
I know my card is able to handle this tv norm since it's working fine (video and sound are ok) under windows
anyone could confirm it isn't working ? any idea why, and how to make it work ?

Quoted 6 lines

since without reply, I don't claim to have seriously looked at it, but at least have one question myself.

In cx88-core is no define for SECAM B or G.

Do you use a signal generator?

Indeed, I do.
It's a Promax GV-198.
http://www.promaxprolink.com/gv198.htm

Quoted 8 lines

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

From what I've found on the internet, Cyprus, Greece, Saudi Arabia and some others. Plus people using a signal modulator (e.g: professionnal use).

Quoted 5 lines

Thanks,
Hermann

Actually, tda9887 Secam BG was broken in (more or less) recent versions of v4l-dvb (I noticed that thanks to the signal modulator and my knc tv station saa7134 based). I came up with a "roll back" patch. I guess it can't be applied directly on the current tree but it can be done manually before being comited to the tree.

linux/drivers/media/video/tda9887.c 2008-06-19 12:21:50.000000000 +0200 renamed from linux/drivers/media/video/tda9887.c 2007-07-02 20:39:57.000000000 +0200 +2 -3
diff -pur1 a/linux/drivers/media/video/tda9887.c b/linux/drivers/media/video/tda9887.c
@@ -172,7 +172,6 @@ static struct tvnorm tvnorms[] = {
                .name  = "SECAM-BGH",
-               .b     = ( cPositiveAmTV  |
+               .b     = ( cNegativeFmTV  |
                           cQSS           ),
                .c     = ( cTopDefault),
-               .e     = ( cGating_36     |
-                          cAudioIF_5_5   |
+               .e     = ( cAudioIF_5_5   |
                           cVideoIF_38_90 ),

For the Hauppauge HVR 1300, I found that adding mentions of SECAM B/G/H in cx88.h and cx88-core.c helped making it work. Same goes for this one, I guess it can't be applied on the current tree but it can easily be manually applied.

linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +7 -1
diff -pur1 a/linux/drivers/media/video/cx88/cx88-core.c b/linux/drivers/media/video/cx88/cx88-core.c
@@ -890,2 +890,5 @@ static int set_tvaudio(struct cx88_core
 
+    } else if ((V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H) & norm) {
+        core->tvaudio = WW_BG;
+
        } else if (V4L2_STD_SECAM_DK & norm) {

@@ -979,3 +982,6 @@ int cx88_set_tvnorm(struct cx88_core *co
                cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
-       cx_andor(MO_INPUT_FORMAT, 0xf, cxiformat);
+    /* Chroma AGC must be disabled if SECAM is used, we enable it
+        by default on PAL and NTSC */
+    cx_andor(MO_INPUT_FORMAT, 0x40f,
+            norm & V4L2_STD_SECAM ? cxiformat : cxiformat | 0x400);
linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88.h 2008-05-13 10:21:01.000000000 +0200 +2 -1
diff -pur1 a/linux/drivers/media/video/cx88/cx88.h b/linux/drivers/media/video/cx88/cx88.h
@@ -62,3 +62,4 @@
        V4L2_STD_PAL_M |  V4L2_STD_PAL_N    |  V4L2_STD_PAL_Nc   | \
-       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK )
+       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK | \
+    V4L2_STD_SECAM_B| V4L2_STD_SECAM_G  |  V4L2_STD_SECAM_H )
Signature · 8 lines
CAND Frederic
Product Manager
ANEVIA

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#5 lore raw

Hi,

Am Dienstag, den 24.06.2008, 10:21 +0200 schrieb Frederic CAND:

Quoted 100 lines
Quoted 11 lines · hermann pitton

Hi Frederic,

Am Montag, den 23.06.2008, 15:31 +0200 schrieb Frederic CAND:

Quoted 7 lines

dear all
I could not make secam b/g work on my hvr 1300
ioctl returns -1, error "Invalid argument"
I know my card is able to handle this tv norm since it's working fine (video and sound are ok) under windows
anyone could confirm it isn't working ? any idea why, and how to make it work ?

Quoted 6 lines

since without reply, I don't claim to have seriously looked at it, but at least have one question myself.

In cx88-core is no define for SECAM B or G.

Do you use a signal generator?

Indeed, I do.
It's a Promax GV-198.
http://www.promaxprolink.com/gv198.htm

Quoted 8 lines

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

From what I've found on the internet, Cyprus, Greece, Saudi Arabia and
some others. Plus people using a signal modulator (e.g: professionnal use).

Quoted 5 lines

Thanks,
Hermann

Actually, tda9887 Secam BG was broken in (more or less) recent versions of v4l-dvb (I noticed that thanks to the signal modulator and my knc tv station saa7134 based). I came up with a "roll back" patch. I guess it can't be applied directly on the current tree but it can be done manually before being comited to the tree.

diff -pur1 a/linux/drivers/media/video/tda9887.c
b/linux/drivers/media/video/tda9887.c
--- a/linux/drivers/media/video/tda9887.c 2007-07-02
20:39:57.000000000 +0200
+++ b/linux/drivers/media/video/tda9887.c 2008-06-19
12:21:50.000000000 +0200

linux/drivers/media/video/tda9887.c 2008-06-19 12:21:50.000000000 +0200 renamed from linux/drivers/media/video/tda9887.c 2007-07-02 20:39:57.000000000 +0200 +2 -3
@@ -172,7 +172,6 @@ static struct tvnorm tvnorms[] = {
                 .name  = "SECAM-BGH",
-               .b     = ( cPositiveAmTV  |
+               .b     = ( cNegativeFmTV  |
                            cQSS           ),
                 .c     = ( cTopDefault),
-               .e     = ( cGating_36     |
-                          cAudioIF_5_5   |
+               .e     = ( cAudioIF_5_5   |
                            cVideoIF_38_90 ),

For the Hauppauge HVR 1300, I found that adding mentions of SECAM B/G/H in cx88.h and cx88-core.c helped making it work. Same goes for this one, I guess it can't be applied on the current tree but it can easily be manually applied.

diff -pur1 a/linux/drivers/media/video/cx88/cx88-core.c b/linux/drivers/media/video/cx88/cx88-core.c
--- a/linux/drivers/media/video/cx88/cx88-core.c 2007-07-02
20:39:57.000000000 +0200
+++ b/linux/drivers/media/video/cx88/cx88-core.c 2008-06-23
18:48:21.000000000 +0200

linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +3 -0
@@ -890,2 +890,5 @@ static int set_tvaudio(struct cx88_core
 
+    } else if ((V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H) 
 & norm) {
+        core->tvaudio = WW_BG;
+

         } else if (V4L2_STD_SECAM_DK & norm) {
linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +4 -1
@@ -979,3 +982,6 @@ int cx88_set_tvnorm(struct cx88_core *co
                 cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
-       cx_andor(MO_INPUT_FORMAT, 0xf, cxiformat);
+    /* Chroma AGC must be disabled if SECAM is used, we enable it
+        by default on PAL and NTSC */
+    cx_andor(MO_INPUT_FORMAT, 0x40f,
+            norm & V4L2_STD_SECAM ? cxiformat : cxiformat | 0x400);

diff -pur1 a/linux/drivers/media/video/cx88/cx88.h b/linux/drivers/media/video/cx88/cx88.h
--- a/linux/drivers/media/video/cx88/cx88.h 2008-05-13
10:21:01.000000000 +0200
+++ b/linux/drivers/media/video/cx88/cx88.h 2008-06-23
17:48:41.000000000 +0200

linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 line 65

Quoted 5 lines
linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88.h 2008-05-13 10:21:01.000000000 +0200 +2 -1
@@ -62,3 +62,4 @@
         V4L2_STD_PAL_M |  V4L2_STD_PAL_N    |  V4L2_STD_PAL_Nc   | \
-       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK )
+       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK | \
+    V4L2_STD_SECAM_B| V4L2_STD_SECAM_G  |  V4L2_STD_SECAM_H )

Secam BG was a weapon during cold war.

It was the composite of the wall on the ground for radio waves in the air. It is the most vanishing TV standard in the world.

For what I seem to know, there is nothing left like such in Europe these days. Also old broadcasting equipment in Irak and Afghanistan doesn't exist anymore and Saudi Arabia at least has Pal BG too.

For other parts of the world the same might count, but we fore sure can't trust on ITU stuff as far back than 2004.
The fee is unexpectedly moderate, sorry for the noise Daniel.

Most of the other potentially remaining candidates are states with huge deserts using usually DVB-S.

Since we likely have no easy means to make totally sure it is not used anymore or should be still available for professional purposes, I suggest to prepare your patches in such a way Mauro can pick them up.

Cheers,
Hermann

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author
#6 lore raw
Quoted 109 lines · hermann pitton

Hi,

Am Dienstag, den 24.06.2008, 10:21 +0200 schrieb Frederic CAND:

Quoted 84 lines
Quoted 9 lines · hermann pitton

Hi Frederic,

Am Montag, den 23.06.2008, 15:31 +0200 schrieb Frederic CAND:

Quoted 6 lines

dear all
I could not make secam b/g work on my hvr 1300
ioctl returns -1, error "Invalid argument"
I know my card is able to handle this tv norm since it's working fine (video and sound are ok) under windows
anyone could confirm it isn't working ? any idea why, and how to make it work ?

Quoted 6 lines

since without reply, I don't claim to have seriously looked at it, but at least have one question myself.

In cx88-core is no define for SECAM B or G.

Do you use a signal generator?

Indeed, I do.
It's a Promax GV-198.
http://www.promaxprolink.com/gv198.htm

Quoted 7 lines

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

From what I've found on the internet, Cyprus, Greece, Saudi Arabia and
some others. Plus people using a signal modulator (e.g: professionnal use).

Quoted 4 lines

Thanks,
Hermann

Actually, tda9887 Secam BG was broken in (more or less) recent versions of v4l-dvb (I noticed that thanks to the signal modulator and my knc tv station saa7134 based). I came up with a "roll back" patch. I guess it can't be applied directly on the current tree but it can be done manually before being comited to the tree.

diff -pur1 a/linux/drivers/media/video/tda9887.c b/linux/drivers/media/video/tda9887.c
--- a/linux/drivers/media/video/tda9887.c 2007-07-02
20:39:57.000000000 +0200
+++ b/linux/drivers/media/video/tda9887.c 2008-06-19
12:21:50.000000000 +0200

linux/drivers/media/video/tda9887.c 2008-06-19 12:21:50.000000000 +0200 renamed from linux/drivers/media/video/tda9887.c 2007-07-02 20:39:57.000000000 +0200 +2 -3
@@ -172,7 +172,6 @@ static struct tvnorm tvnorms[] = {
                 .name  = "SECAM-BGH",
-               .b     = ( cPositiveAmTV  |
+               .b     = ( cNegativeFmTV  |
                            cQSS           ),
                 .c     = ( cTopDefault),
-               .e     = ( cGating_36     |
-                          cAudioIF_5_5   |
+               .e     = ( cAudioIF_5_5   |
                            cVideoIF_38_90 ),

For the Hauppauge HVR 1300, I found that adding mentions of SECAM B/G/H in cx88.h and cx88-core.c helped making it work. Same goes for this one, I guess it can't be applied on the current tree but it can easily be manually applied.

diff -pur1 a/linux/drivers/media/video/cx88/cx88-core.c b/linux/drivers/media/video/cx88/cx88-core.c
--- a/linux/drivers/media/video/cx88/cx88-core.c 2007-07-02
20:39:57.000000000 +0200
+++ b/linux/drivers/media/video/cx88/cx88-core.c 2008-06-23
18:48:21.000000000 +0200

linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +3 -0
@@ -890,2 +890,5 @@ static int set_tvaudio(struct cx88_core
 
+    } else if ((V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H) 
 & norm) {
+        core->tvaudio = WW_BG;
+

         } else if (V4L2_STD_SECAM_DK & norm) {
linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +4 -1
@@ -979,3 +982,6 @@ int cx88_set_tvnorm(struct cx88_core *co
                 cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
-       cx_andor(MO_INPUT_FORMAT, 0xf, cxiformat);
+    /* Chroma AGC must be disabled if SECAM is used, we enable it
+        by default on PAL and NTSC */
+    cx_andor(MO_INPUT_FORMAT, 0x40f,
+            norm & V4L2_STD_SECAM ? cxiformat : cxiformat | 0x400);

diff -pur1 a/linux/drivers/media/video/cx88/cx88.h b/linux/drivers/media/video/cx88/cx88.h
--- a/linux/drivers/media/video/cx88/cx88.h 2008-05-13
10:21:01.000000000 +0200
+++ b/linux/drivers/media/video/cx88/cx88.h 2008-06-23
17:48:41.000000000 +0200

linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 line 65

Quoted 5 lines
linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88.h 2008-05-13 10:21:01.000000000 +0200 +2 -1
@@ -62,3 +62,4 @@
         V4L2_STD_PAL_M |  V4L2_STD_PAL_N    |  V4L2_STD_PAL_Nc   | \
-       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK )
+       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK | \
+    V4L2_STD_SECAM_B| V4L2_STD_SECAM_G  |  V4L2_STD_SECAM_H )

Secam BG was a weapon during cold war.

It was the composite of the wall on the ground for radio waves in the air. It is the most vanishing TV standard in the world.

For what I seem to know, there is nothing left like such in Europe these days. Also old broadcasting equipment in Irak and Afghanistan doesn't exist anymore and Saudi Arabia at least has Pal BG too.

For other parts of the world the same might count, but we fore sure can't trust on ITU stuff as far back than 2004.
The fee is unexpectedly moderate, sorry for the noise Daniel.

Most of the other potentially remaining candidates are states with huge deserts using usually DVB-S.

Quoted 11 lines

Since we likely have no easy means to make totally sure it is not used anymore or should be still available for professional purposes, I suggest to prepare your patches in such a way Mauro can pick them up.

Cheers,
Hermann

would you like me to prepare the patches against latest snapshot ? could you please remind me of a tiny "howto" ? cheers

Signature · 8 lines
CAND Frederic
Product Manager
ANEVIA

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#7 lore raw

Am Mittwoch, den 25.06.2008, 14:07 +0200 schrieb Frederic CAND:

Quoted 132 lines
Quoted 120 lines · hermann pitton

Hi,

Am Dienstag, den 24.06.2008, 10:21 +0200 schrieb Frederic CAND:

Quoted 95 lines
Quoted 10 lines · hermann pitton

Hi Frederic,

Am Montag, den 23.06.2008, 15:31 +0200 schrieb Frederic CAND:

Quoted 7 lines

dear all
I could not make secam b/g work on my hvr 1300
ioctl returns -1, error "Invalid argument"
I know my card is able to handle this tv norm since it's working fine (video and sound are ok) under windows
anyone could confirm it isn't working ? any idea why, and how to make it work ?

Quoted 6 lines

since without reply, I don't claim to have seriously looked at it, but at least have one question myself.

In cx88-core is no define for SECAM B or G.

Do you use a signal generator?

Indeed, I do.
It's a Promax GV-198.
http://www.promaxprolink.com/gv198.htm

Quoted 7 lines

Hartmut asked once on the saa7134 driver, if there are any known remaining SECAM_BG users currently and we remained, that it is hard to get really up to date global analog lists for current broadcasts and I only could contribute that there was no single request for it during all these last years.

You know countries still using it?

From what I've found on the internet, Cyprus, Greece, Saudi Arabia and
some others. Plus people using a signal modulator (e.g: professionnal use).

Quoted 4 lines

Thanks,
Hermann

Actually, tda9887 Secam BG was broken in (more or less) recent versions of v4l-dvb (I noticed that thanks to the signal modulator and my knc tv station saa7134 based). I came up with a "roll back" patch. I guess it can't be applied directly on the current tree but it can be done manually before being comited to the tree.

diff -pur1 a/linux/drivers/media/video/tda9887.c
b/linux/drivers/media/video/tda9887.c
--- a/linux/drivers/media/video/tda9887.c 2007-07-02
20:39:57.000000000 +0200
+++ b/linux/drivers/media/video/tda9887.c 2008-06-19
12:21:50.000000000 +0200

linux/drivers/media/video/tda9887.c 2008-06-19 12:21:50.000000000 +0200 renamed from linux/drivers/media/video/tda9887.c 2007-07-02 20:39:57.000000000 +0200 +2 -3
@@ -172,7 +172,6 @@ static struct tvnorm tvnorms[] = {
                 .name  = "SECAM-BGH",
-               .b     = ( cPositiveAmTV  |
+               .b     = ( cNegativeFmTV  |
                            cQSS           ),
                 .c     = ( cTopDefault),
-               .e     = ( cGating_36     |
-                          cAudioIF_5_5   |
+               .e     = ( cAudioIF_5_5   |
                            cVideoIF_38_90 ),

For the Hauppauge HVR 1300, I found that adding mentions of SECAM B/G/H in cx88.h and cx88-core.c helped making it work. Same goes for this one, I guess it can't be applied on the current tree but it can easily be manually applied.

diff -pur1 a/linux/drivers/media/video/cx88/cx88-core.c b/linux/drivers/media/video/cx88/cx88-core.c
--- a/linux/drivers/media/video/cx88/cx88-core.c 2007-07-02
20:39:57.000000000 +0200
+++ b/linux/drivers/media/video/cx88/cx88-core.c 2008-06-23
18:48:21.000000000 +0200

linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +3 -0
@@ -890,2 +890,5 @@ static int set_tvaudio(struct cx88_core
 
+    } else if ((V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H) 
 & norm) {
+        core->tvaudio = WW_BG;
+

         } else if (V4L2_STD_SECAM_DK & norm) {
linux/drivers/media/video/cx88/cx88-core.c 2008-06-23 18:48:21.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88-core.c 2007-07-02 20:39:57.000000000 +0200 +4 -1
@@ -979,3 +982,6 @@ int cx88_set_tvnorm(struct cx88_core *co
                 cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
-       cx_andor(MO_INPUT_FORMAT, 0xf, cxiformat);
+    /* Chroma AGC must be disabled if SECAM is used, we enable it
+        by default on PAL and NTSC */
+    cx_andor(MO_INPUT_FORMAT, 0x40f,
+            norm & V4L2_STD_SECAM ? cxiformat : cxiformat | 0x400);

diff -pur1 a/linux/drivers/media/video/cx88/cx88.h b/linux/drivers/media/video/cx88/cx88.h
--- a/linux/drivers/media/video/cx88/cx88.h 2008-05-13
10:21:01.000000000 +0200
+++ b/linux/drivers/media/video/cx88/cx88.h 2008-06-23
17:48:41.000000000 +0200

linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 line 65

Quoted 5 lines
linux/drivers/media/video/cx88/cx88.h 2008-06-23 17:48:41.000000000 +0200 renamed from linux/drivers/media/video/cx88/cx88.h 2008-05-13 10:21:01.000000000 +0200 +2 -1
@@ -62,3 +62,4 @@
         V4L2_STD_PAL_M |  V4L2_STD_PAL_N    |  V4L2_STD_PAL_Nc   | \
-       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK )
+       V4L2_STD_PAL_60|  V4L2_STD_SECAM_L  |  V4L2_STD_SECAM_DK | \
+    V4L2_STD_SECAM_B| V4L2_STD_SECAM_G  |  V4L2_STD_SECAM_H )

Secam BG was a weapon during cold war.

It was the composite of the wall on the ground for radio waves in the air. It is the most vanishing TV standard in the world.

For what I seem to know, there is nothing left like such in Europe these days. Also old broadcasting equipment in Irak and Afghanistan doesn't exist anymore and Saudi Arabia at least has Pal BG too.

For other parts of the world the same might count, but we fore sure can't trust on ITU stuff as far back than 2004.
The fee is unexpectedly moderate, sorry for the noise Daniel.

Most of the other potentially remaining candidates are states with huge deserts using usually DVB-S.

Quoted 11 lines

Since we likely have no easy means to make totally sure it is not used anymore or should be still available for professional purposes, I suggest to prepare your patches in such a way Mauro can pick them up.

Cheers,
Hermann

Quoted 3 lines

would you like me to prepare the patches against latest snapshot ? could you please remind me of a tiny "howto" ?
cheers

Yes, latest v4l-dvb and separate patches for the tda9887 correction and Secam BGH addition to cx88.

There are various ways to generate patches.
I'll try to give some basic hints to something that should work for you.

"yum install mercurial" or what you distribution uses. "hg clone http://linuxtv.org/hg/v4l-dvb"

Try README.patches there.

We need a

Signed-off-by your name <your.e-mail.address>

line from you above your patches.

Fix the tda9887.
"hg diff" has your changes.
"make checkpatch" searches for errors and coding style stuff.

If OK,
"hg diff > tda9887_fix_SECAM-BGH_demodulation.patch"

"make commit"

Do the cx88 changes and same procedure resulting in your second patch.

(In your case, since the patches are not interdependent concerning the modified code and the order in which they have to be applied, you could even avoid the "make commit" remove your tda9887 fix with "patch -R -p1 < tda9887*.patch" and create the cx88 patchset with "hg diff" from here too or use a second copy of v4l-dvb.)

This is usually enough to send them per mail as patch 1/2 and 2/2 with something like "[PATCH 1/2] tda9887: fix SECAM-BGH demodulation"
"[PATCH 2/2] cx88: add support for SECAM-BGH"
in the subject. You might add a small description and don't forget your signed-off-by line. Send also a copy directly to Mauro.

Mail applications often break patches. If you are not sure about yours, send to yourself at first and check or add the patch also as an attachment.

"hg export changeset-number" is useful in case you start working with "make commit" to get them out for mailing, "hg log > hg.log" to get the changeset numbers if you like to review something.

Thanks,
Hermann

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