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Subject: v4l2-ctl: check for presence of the SOURCE_CHANGE event Author: Hans Verkuil <hverkuil-ci...@xs4all.nl> Date: Wed Jan 30 11:46:49 2019 +0100 If this event doesn't exist, then also call capture_setup() when you start streaming. This would be the case for e.g. JPEG decoders. Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl> utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=dbab363a6022806d3d9568e470941e9113910b37 diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp index 33ffb2e8c9d4..01097d4e5d12 100644 --- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp +++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp @@ -1971,8 +1971,7 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd) memset(&sub, 0, sizeof(sub)); sub.type = V4L2_EVENT_SOURCE_CHANGE; - if (fd.subscribe_event(sub) && codec_type != NOT_CODEC) - goto done; + bool have_source_change = !fd.subscribe_event(sub); file[CAP] = open_output_file(fd); file[OUT] = open_input_file(fd, out.g_type()); @@ -1999,7 +1998,7 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd) if (fd.streamon(out.g_type())) goto done; - if (codec_type != DECODER) + if (codec_type != DECODER || !have_source_change) if (capture_setup(fd, in, exp_fd_p)) goto done; _______________________________________________ linuxtv-commits mailing list linuxtv-commits@linuxtv.org https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
