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As of September 14 2012, v4l_enumstd() will return ENODATA when a device's std field is set to 0. That is, the device does not have a standard format. In order to properly handle this case, v4l2_set_parameters should catch the ENODATA code and break instead of failing. Below is the v4l2-core commit describing this change. >>commit a5338190efc7cfa8c99a6856342a77d21c9a05cf >>Author: Hans Verkuil <hans.verkuil@cisco.com> >>Date: Fri Sep 14 06:45:43 2012 -0300 >> >> [media] v4l2-core: tvnorms may be 0 for a given input, handle that case >> >> Currently the core code looks at tvnorms to see whether ENUMSTD >> or G_PARM should be enabled. This is not a good check for drivers >> that support the STD API on one input and the DV Timings API on another. >> In that case tvnorms may be 0. >> Instead check whether s_std is present (for ENUMSTD) or whether g_std or >> current_norm is present for g_parm. >> Also, in the enumstd core function return ENODATA if tvnorms is 0, >> because in that case the current input does not support the STD API >> and ENUMSTD should return ENODATA for that. >> >> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> >> Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi> >> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
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| .. | ||
| alldevices.c | ||
| alsa-audio-common.c | ||
| alsa-audio-dec.c | ||
| alsa-audio-enc.c | ||
| alsa-audio.h | ||
| avdevice.c | ||
| avdevice.h | ||
| avdeviceres.rc | ||
| avfoundation.m | ||
| bktr.c | ||
| caca.c | ||
| decklink_enc_c.c | ||
| decklink_enc.cpp | ||
| decklink_enc.h | ||
| dshow_capture.h | ||
| dshow_common.c | ||
| dshow_enummediatypes.c | ||
| dshow_enumpins.c | ||
| dshow_filter.c | ||
| dshow_pin.c | ||
| dshow.c | ||
| dv1394.c | ||
| dv1394.h | ||
| fbdev_common.c | ||
| fbdev_common.h | ||
| fbdev_dec.c | ||
| fbdev_enc.c | ||
| file_open.c | ||
| gdigrab.c | ||
| iec61883.c | ||
| jack_audio.c | ||
| lavfi.c | ||
| libavdevice.v | ||
| libcdio.c | ||
| libdc1394.c | ||
| Makefile | ||
| openal-dec.c | ||
| opengl_enc_shaders.h | ||
| opengl_enc.c | ||
| oss_audio_dec.c | ||
| oss_audio_enc.c | ||
| oss_audio.c | ||
| oss_audio.h | ||
| pulse_audio_common.c | ||
| pulse_audio_common.h | ||
| pulse_audio_dec.c | ||
| pulse_audio_enc.c | ||
| qtkit.m | ||
| sdl.c | ||
| sndio_common.c | ||
| sndio_common.h | ||
| sndio_dec.c | ||
| sndio_enc.c | ||
| timefilter.c | ||
| timefilter.h | ||
| v4l2-common.c | ||
| v4l2-common.h | ||
| v4l2.c | ||
| v4l2enc.c | ||
| v4l.c | ||
| version.h | ||
| vfwcap.c | ||
| x11grab.c | ||
| xv.c | ||