From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m56BZbKi018752 for ; Fri, 6 Jun 2008 07:35:37 -0400 Received: from linos.es (centrodatos.linos.es [86.109.105.97]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m56BYcXI011647 for ; Fri, 6 Jun 2008 07:34:38 -0400 Message-ID: <484920B9.4010107@linos.es> Date: Fri, 06 Jun 2008 13:34:17 +0200 From: Linos MIME-Version: 1.0 To: video4linux-list@redhat.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: bttv driver problem last kernels List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: video4linux-list-bounces@redhat.com Errors-To: video4linux-list-bounces@redhat.com List-ID: Hello all, i am using a bttv multicapture board and i have been having increasing problems in last kernels, i am using two programs to capture my video input for security reasons (helix producer and mp4live from mpeg4ip project) since the first versions of v4l2 in 2.4 patched kernel versions i can attach the two programs at the same time at the same video input, only loss framerate but i am using a low framerate to transmit by internet anyway, before 2.6.22 all have worked very well (i have not tested 2.6.21, the last kernel working ok i have tested is 2.6.20) but after that bttv driver is getting worse and worse, from 2.6.22 to 2.6.24 i get this if i try to launch the second process in the same video input: first mp4live works ok when i launch producer: Error: Could not set image size to 352x288 for color format I420 (15) (VIDIOCMCAPTURE: buffer 0) first producer works ok when i launch mp4live: 12:59:59.333-mp4live: Failed to allocate video capture buffer for /dev/video0 and in 2.6.25 worse yet it has a deadlock, i have applied the patch listed here http://lkml.org/lkml/2008/5/17/139 but still doesnt works for capturing anything, before the patch it hangs the process after the patch it gives me other error about buffers different from the above in the first process attached to the video input so it is unusable. Obviously my problem here it is that if i want to upgrade hardware i can have problems with sata, chipsets, audio or any other new hardware no supported in older kernels (apart from missing features). Should the situation with bttv drivers be better in future kernels or it is letting die for better support for new chips? Regards, Miguel Angel. -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list