This part of the code counts the number of planes returned by the v4l2
device for each queried capture/output buffer.
When testing the GPU h264 encoder on Nvidia's Jetson Nano, this caused an
infinite loop because avbuf->buf.length included some empty buffers (i.e.
where avbuf->buf.m.planes[i].length = 0), meaning that the counter was
never incremented and break was never reached.
This is fixed in the commit by using a well defined iteration range.
Signed-off-by: Aman Gupta <aman@tmm1.net>
if (V4L2_TYPE_IS_MULTIPLANAR(ctx->type)) {
avbuf->num_planes = 0;
- for (;;) {
- /* in MP, the V4L2 API states that buf.length means num_planes */
- if (avbuf->num_planes >= avbuf->buf.length)
- break;
- if (avbuf->buf.m.planes[avbuf->num_planes].length)
+ /* in MP, the V4L2 API states that buf.length means num_planes */
+ for (i = 0; i < avbuf->buf.length; i++) {
+ if (avbuf->buf.m.planes[i].length)
avbuf->num_planes++;
}
} else