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116649371e
Most V4L2 ioctls like try_fmt will adjust input fields to match what the hardware can do rather then returning -EINVAL. As is docmented here: http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-g-fmt.html EINVAL is only returned if the buffer type field is invalid or not supported. So upon requesting V4L2_FIELD_NONE devices which can only do interlaced mode will change the field value to e.g. V4L2_FIELD_BOTTOM as only returning half the lines is the closest they can do to progressive modes. In essence this means that we've failed to get a (usable) progessive mode and should fall back to interlaced mode. This commit adds a check for having gotten a usable field value after the first try_fmt, to force fallback to interlaced mode even if the try_fmt succeeded, thereby fixing get_nearest_size failing on these devices. https://bugzilla.gnome.org/show_bug.cgi?id=735660 |
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| v4l2 | ||
| waveform | ||
| ximage | ||
| Makefile.am | ||