From 87daee944b119299c9057440c71aa4a524ef5734 Mon Sep 17 00:00:00 2001 From: Aman Gupta Date: Thu, 22 Aug 2019 12:20:56 -0700 Subject: [PATCH] avcodec/v4l2_context: log VIDIOC_REQBUFS failures Signed-off-by: Aman Gupta --- libavcodec/v4l2_context.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/v4l2_context.c b/libavcodec/v4l2_context.c index efcb0426e4..4958c634bf 100644 --- a/libavcodec/v4l2_context.c +++ b/libavcodec/v4l2_context.c @@ -678,8 +678,10 @@ int ff_v4l2_context_init(V4L2Context* ctx) req.memory = V4L2_MEMORY_MMAP; req.type = ctx->type; ret = ioctl(s->fd, VIDIOC_REQBUFS, &req); - if (ret < 0) + if (ret < 0) { + av_log(logger(ctx), AV_LOG_ERROR, "%s VIDIOC_REQBUFS failed: %s\n", ctx->name, strerror(errno)); return AVERROR(errno); + } ctx->num_buffers = req.count; ctx->buffers = av_mallocz(ctx->num_buffers * sizeof(V4L2Buffer));