Hi !
Does anyone managed to send multipage faxes (in single TIFF file) with app_txfax from spandsp package (i'm using 0.0.2pre18, libtiff 3.7.1)?
If so, I'm interested in format of TIFF file that has been sent sent succesfully (tiffinfo <fax-filename>).
I'm having problems with app_txfax, sending first page successfuly 99 % of the time, but never managed to send second or third page (treid sending to Panasonic fax and to app_rxfax on other Asterisk through the PSTN). Receiving FAX machine hangs up after first page it got (no errors reported) and app_txfax is holding channel for ever (until soft hangup Zap/XX).
Here is my tiffinfo on 3 sample files I have tried to fax (on all three only first page being received):
LOW-RES fax file (204xx98):
lowres:/var/spool/asterisk/fax-out# tiffinfo FAX68.TIF TIFF Directory at offset 0x9160 Image Width: 1728 Image Length: 1173 Resolution: 204, 98 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Samples/Pixel: 1 Rows/Strip: 1173 Planar Configuration: single image plane Page Number: 0-3 Group 3 Options: EOL padding (4 = 0x4) TIFF Directory at offset 0x11eb6 Image Width: 1728 Image Length: 1173 Resolution: 204, 98 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Samples/Pixel: 1 Rows/Strip: 1173 Planar Configuration: single image plane Page Number: 1-3 Group 3 Options: EOL padding (4 = 0x4) TIFF Directory at offset 0x16e3e Image Width: 1728 Image Length: 1173 Resolution: 204, 98 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Samples/Pixel: 1 Rows/Strip: 1173 Planar Configuration: single image plane Page Number: 2-3 Group 3 Options: EOL padding (4 = 0x4)
same file HI-RES (204x196) :
pbx:/var/spool/asterisk/fax-out# tiffinfo FAX67.TIF TIFF Directory at offset 0x128e8 Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 2347 Resolution: 204, 196 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Samples/Pixel: 1 Rows/Strip: 2347 Planar Configuration: single image plane Page Number: 0-3 Group 3 Options: EOL padding (4 = 0x4) TIFF Directory at offset 0x24a6c Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 2347 Resolution: 204, 196 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Samples/Pixel: 1 Rows/Strip: 2347 Planar Configuration: single image plane Page Number: 1-3 Group 3 Options: EOL padding (4 = 0x4) TIFF Directory at offset 0x2ed84 Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 2347 Resolution: 204, 196 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Samples/Pixel: 1 Rows/Strip: 2347 Planar Configuration: single image plane Page Number: 2-3 Group 3 Options: EOL padding (4 = 0x4)
Here is tiffinfo of sample fax TIFF file that I have found looking for the TIFF/FAX specification - this one doesn't go either !
pbx:/var/spool/asterisk/fax-out# tiffinfo SAMPLEF.TIF TIFFReadDirectory: Warning, SAMPLEF.TIF: unknown field with tag 32860 (0x805c) encountered. TIFFReadDirectory: Warning, SAMPLEF.TIF: unknown field with tag 32861 (0x805d) encountered. TIFF Directory at offset 0x62cf Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 852 Resolution: 204, 98 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Date & Time: "1990:01:05 14:14:38" Document Name: "C:\EFAX\EXAMPLE.TXT" Image Description: "FAX" Orientation: row 0 top, col 0 lhs Samples/Pixel: 1 Rows/Strip: 852 Planar Configuration: single image plane Page Number: 0-3 Software: EFax Version 2.2d74 Tag 32860: Tiff Ver 2.0 Tag 32861: 555-5555 Group 3 Options: EOL padding (4 = 0x4) Fax Data: clean (0 = 0x0) Bad Fax Lines: 0 Consecutive Bad Fax Lines: 0 TIFFReadDirectory: Warning, SAMPLEF.TIF: unknown field with tag 32860 (0x805c) encountered. TIFFReadDirectory: Warning, SAMPLEF.TIF: unknown field with tag 32861 (0x805d) encountered. TIFF Directory at offset 0x7fd9 Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 292 Resolution: 204, 98 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Date & Time: "1990:01:05 14:14:39" Document Name: "C:\EFAX\EXAMPLE.TXT" Image Description: "FAX" Orientation: row 0 top, col 0 lhs Samples/Pixel: 1 Rows/Strip: 292 Planar Configuration: single image plane Page Number: 1-3 Software: EFax Version 2.2d74 Tag 32860: Tiff Ver 2.0 Tag 32861: 555-5555 Group 3 Options: EOL padding (4 = 0x4) Fax Data: clean (0 = 0x0) Bad Fax Lines: 0 Consecutive Bad Fax Lines: 0 TIFFReadDirectory: Warning, SAMPLEF.TIF: unknown field with tag 32860 (0x805c) encountered. TIFFReadDirectory: Warning, SAMPLEF.TIF: unknown field with tag 32861 (0x805d) encountered. TIFF Directory at offset 0xab2f Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 577 Resolution: 204, 98 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 3 Photometric Interpretation: min-is-white FillOrder: lsb-to-msb Date & Time: "1990:01:05 14:14:39" Document Name: "C:\EFAX\EXAMPLE.TXT" Image Description: "FAX" Orientation: row 0 top, col 0 lhs Samples/Pixel: 1 Rows/Strip: 577 Planar Configuration: single image plane Page Number: 2-3 Software: EFax Version 2.2d74 Tag 32860: Tiff Ver 2.0 Tag 32861: 555-5555 Group 3 Options: EOL padding (4 = 0x4) Fax Data: clean (0 = 0x0) Bad Fax Lines: 0 Consecutive Bad Fax Lines: 0
Regards, Nenad Radosavljevic
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