Hi all, I'm trying to get my lml33 mjpeg card running to capture video from a camera and ntsc videotape. I'm able to capture video alone using an LML33 zoran card, 2.4.22 kernel, v4l2 patches, and lavrec from mjpegtools-1.6.1. But when I try to capture audio+video with lavrec, it has trouble starting up its audio process/thread, and dies before doing anything useful: $ LAV_AUDIO_DEV=/dev/dsp export LAV_AUDIO_DEV $ LAV_VIDEO_DEV=/dev/video0 export LAV_VIDEO_DEV $ lavrec -t10 -fa -in -d2 -q100 -a16 -r44100 -s -Rl -c2 -U -v1 tsta.avi INFO: [lavrec] Recording parameters: INFO: [lavrec] Output format: AVI INFO: [lavrec] Input Source: Composite NTSC INFO: [lavrec] Decimation: 2 INFO: [lavrec] Quality: 100 INFO: [lavrec] Recording time: 10 sec INFO: [lavrec] INFO: [lavrec] MJPEG buffer size: 256 KB INFO: [lavrec] # of MJPEG buffers: 64 INFO: [lavrec] Audio parameters: INFO: [lavrec] Audio sample size: 16 bit INFO: [lavrec] Audio sampling rate: 44100 Hz INFO: [lavrec] Audio is STEREO INFO: [lavrec] Audio input recording level: Use mixer setting INFO: [lavrec] Level of correction for Audio/Video synchronization: INFO: [lavrec] Lost frame compensation and frame drop/insert ++ WARN: [lavrec] Unable to set negative priority for main thread ++ WARN: [lavrec] Pthread Real-time scheduling for main thread could not be enabled INFO: [lavrec] Using read(2) system call for capture ++ WARN: [lavrec] Unable to set negative priority for audio thread. ++ WARN: [lavrec] Pthread Real-time scheduling for audio thread could not be enabled. INFO: [lavrec] Auto detecting input and norm ... INFO: [lavrec] Image size will be 352x240, 1 field(s) per buffer INFO: [lavrec] Got 32 buffers of size 256 KB INFO: [lavrec] Getting audio ... (pause of several seconds here) **ERROR: [lavrec] Unable to get audio - exiting .... Recording time : 0.00.00:00 Lost frames : 000 A/V sync ins/del: 000/000 Audio errors : 000 ++ WARN: [lavrec] We're not stopped yet, use lavrec_stop() first! I tried lavrec both with and without -U (read() insteadm of mmap for audio) with the same result. Same result (without the WARN lines) if I run as root. To test capturing video only, I use this, which works great: lavrec -t20 -fa -in -d2 -q100 -a0 -c0 -v1 tst.avi I know the sound card is working, because I can record 44,100Khz stereo using another program (yarec-0.65pl5), even while a video-only lavrec capture is in progress. Any suggestions of things to try? Does lavrec from mjpegtools-1.6.1 work with audio for anyone else? I've poked briefly into mjpegtools/lavtools and looked at the "testrec" audiolib test program. It doesn't work due to changes in the prototype of audiolib.c/audio_init(), but with a few obvious fixes runs and produces the exact same error as lavrec. more configuration details: The system is a 2.6Ghz P4, an i845e chipset (Chaintech 9ejl1 motherboard), with 1Gb of ECC RAM. OS is Redhat 9, with latest errata, except kernel is a vanilla kernel.org 2.4.22, with patches from http://bytesex.org/patches/2.4.22/ Zoran driver is VIDEODEV_2 cvs from yesterday, "cvs -d:pserver:anonymous@xxxxxxxxxxxxxxxx:/cvsroot/mjpeg co -d driver-zoran-new -r ZORAN_VIDEODEV_2 driver-zoran" loaded with "update lml33 NTSC". For mjpegtools, I tried both mjpegtools-1.6.1-fr5.src.rpm from freshrpms.net and mjpegtools-1.6.1.90-1.src.rpm from http://mjpeg.sourceforge.net/. libquicktime and other mjpegtools dependencies are from freshrpms. sound card lspci: 02:02.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) Subsystem: Creative Labs: Unknown device 8064 Flags: bus master, medium devsel, latency 96, IRQ 11 I/O ports at 9000 [size=32] Capabilities: <available only to root> lml33 lspci: 02:04.0 Multimedia video controller: Zoran Corporation ZR36057PQC Video cutting chipset (rev 02) Subsystem: Unknown device ff23:ded6 Flags: fast devsel, IRQ 10 Memory at ea001000 (32-bit, non-prefetchable) [size=4K] Thanks for any suggestions! Steve
