On Sun, Nov 26, 2017 at 2:13 PM, Carl Eugen Hoyos <[email protected]> wrote: >> I tried to compile ffmpeg 0.6.7 from GitHub, but without success; it >> gives the error: >> >> libavcodec/vaapi_mpeg4.c:89:73: error: implicit declaration of >> function ‘ff_h263_get_gob_height’; did you mean ‘ff_h261_encode_init’? >> >> Probably, I'm missing some old dependency? > > Unlikely, but try --disable-vaapi
It worked, but then I hit: ffserver.c: In function ‘rtsp_cmd_describe’: ffserver.c:2987:5: error: implicit declaration of function ‘ff_url_split’ [-Werror=implicit-function-declaration] So I tried to add '--disable-ffserver'; and it finished! Now, it gives a different error: ~/bin$ ./ffmpeg -f alsa -i hw:1,0 -t 30 out.wav FFmpeg version 0.6.7, Copyright (c) 2000-2010 the FFmpeg developers built on Nov 26 2017 18:07:01 with gcc 7.2.0 configuration: --disable-vaapi --disable-ffserver --prefix=/home/marco/ffmpeg_build --extra-cflags=-I/home/marco/ffmpeg_build/include --bindir=/home/marco/bin libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.11. 0 / 0.11. 0 [alsa @ 0x558ad41be420]cannot set channel count to 1 (Invalid argument) hw:1,0: Input/output error This gives maybe more insight! The USB capture card is stereo (two RCA connectors), but I'm capturing from a mono source (only one RCA connector is plugged into the USB device). Is there some additional option I should pass to ffmpeg? With qv4l2, I simply get audio only in one channel (right). > Please do not top-post here, Carl Eugen Apologies; I wasn't aware of the etiquette :-) -- Marco _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
