ff_v4l2_buffer_initialize  119 libavcodec/v4l2_buffers.h int ff_v4l2_buffer_initialize(V4L2Buffer* avbuf, int index);
ff_v4l2_buffer_initialize  756 libavcodec/v4l2_context.c         ret = ff_v4l2_buffer_initialize(&ctx->buffers[i], i);